CN204986649U - Backlight module group - Google Patents
Backlight module group Download PDFInfo
- Publication number
- CN204986649U CN204986649U CN201520560808.5U CN201520560808U CN204986649U CN 204986649 U CN204986649 U CN 204986649U CN 201520560808 U CN201520560808 U CN 201520560808U CN 204986649 U CN204986649 U CN 204986649U
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- CN
- China
- Prior art keywords
- backlight module
- pcb board
- substrate
- guide plate
- light guide
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a backlight module group, include: PCB board, light guide plate and light screen that the stack set up, be equipped with a plurality of light emitting sources on the PCB board, the light guide plate includes first base plate to and second base plate, second base plate cover is established first base plate, just be equipped with on the second base plate a plurality of with the light emitting source matches places the position, the light emitting source holding in place in the position, the light screen covers the second base plate. The light that above -mentioned backlight module group make full use of light source sent has improved the utilization ratio of light, saving cost. The commonality is stronger, and then makes its easy popularization.
Description
Technical field
The utility model relates to electronics industry, particularly relates to a kind of backlight module.
Background technology
In the electronics industry, backlight is a kind of form of illumination, for increase in low lighting environment illuminance or increase computer monitor, liquid crystal screen brightness.Backlight has multiple light emitting species, such as backlight type and front smooth formula, and its difference is that backlight type is from side or irradiates behind, and as the term suggests front light is then irradiated from the front.
But backlight versatility is in the market poor, cost is higher.
Utility model content
Based on this, be necessary to provide that a kind of versatility is comparatively strong, cost is lower, higher to the utilization rate of light, be easy to the backlight module promoted.
A kind of backlight module, comprising: the pcb board that superposition is arranged, light guide plate and shadow shield,
Described pcb board is provided with some light emitting sources;
Described light guide plate comprises first substrate, and second substrate, the sheathed described first substrate of described second substrate, and described second substrate is provided with the placement position that some and described light emitting source mates, and described light emitting source is placed in described placement position;
Described shadow shield hides described second substrate.
Wherein in an embodiment, through hole is offered at the middle part of described first substrate, and described placement position distributes along the periphery of described through hole.
Wherein in an embodiment, the end face of described light emitting source is less than the degree of depth of described placement position to the distance of described pcb board.
Wherein in an embodiment, described backlight module also comprises reflection box, the sheathed described light guide plate of described reflection box, and wraps up the peripheral side of described second substrate.
Wherein in an embodiment, described reflection box wraps up the side of described pcb board, described light guide plate and described shadow shield, and two of described reflection box sides are concordant with two opposing surfaces of described shadow shield and described pcb board.
Wherein in an embodiment, described backlight module also comprises double faced adhesive tape, and described double faced adhesive tape superposition is arranged on the surface of described pcb board away from described light guide plate, and described double faced adhesive tape is covered to pcb board described in small part.
Wherein in an embodiment, described backlight module also comprises and superposes with described double faced adhesive tape the base stock arranged, and described base stock and described pcb board lay respectively at the both sides of described double faced adhesive tape.
Wherein in an embodiment, described pcb board is provided with the groove for welding cable away from the surface of described light guide plate.
Wherein in an embodiment, described backlight module also comprises cable and label, and one end of described cable is arranged in groove, and concordant with the surface of described pcb board, and described label is arranged on described cable.
Wherein in an embodiment, described light emitting source is LED.
Above-mentioned backlight module light source is placed in the placement position of light guide plate, light source is made to contact with light guide plate tightr, and, due to light guide plate ambient light source, the light making light source send from different perspectives all enters in light guide plate, makes full use of the light that light source sends, and improves the utilization rate of light, and then relatively can reduce the quantity of light source, cost-saving.In addition, because light guide plate comprises two substrates, can change according to actual conditions the first substrate being positioned at second substrate, make it be applicable to different products, increase its versatility, and then make it be easy to promote, and save design cost.
The end face of light emitting source is less than the degree of depth of placing position to the distance of pcb board.Make light guide plate more smooth on the one hand, conveniently shadow shield is set, further increase the utilization rate of the light of light emitting source on the other hand.
Through hole makes backlight when mounted, more stable, not easily rocks.Light emitting source, along the distribution of through hole periphery, makes the luminescence of backlight module more even.
The side of reflection box parcel pcb board, light guide plate and shadow shield, further ensures the reliability of launching frame and wrapping up light guide plate, and then further increases the utilization rate of light in light source.
Accompanying drawing explanation
Fig. 1 is the explosive view of the backlight module of the utility model one preferred embodiment;
Fig. 2 is the structural representation of backlight module shown in Fig. 1;
Fig. 3 is the structural representation of another angle of backlight module shown in Fig. 1.
Detailed description of the invention
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Better embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make to disclosure of the present utility model understand more thorough comprehensively.
It should be noted that, when element is called as " being arranged at " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in description of the present utility model herein just in order to describe concrete embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, it is the explosive view of the backlight module 10 of the utility model one preferred embodiment.
Backlight module 10, comprising: body 100, the cable 200 be arranged on body 100, the label 300 arranged on cable 200, and the reflection box 400 of parcel body 100.Wherein body 100 comprises: superpose the shadow shield 110 of setting, light guide plate 120, pcb board 130, double faced adhesive tape 140 successively, and base stock 150.Also can be understood as, double faced adhesive tape 140 superposition is arranged on the surface of pcb board 130 away from light guide plate 120, and double faced adhesive tape 140 is covered to small part pcb board 130, and base stock 150 and pcb board 130 lay respectively at the both sides of double faced adhesive tape 140.
See also Fig. 2 and Fig. 3, it is respectively the structural representation of the different angles of backlight module 10 shown in Fig. 1.
Pcb board 130 is provided with some light emitting sources 131, and some components and parts 132, and pcb board 130 is provided with the groove 133 for welding cable 200 away from the surface of light guide plate 120.One end of cable 200 is arranged in groove 133, and concordant with the surface of pcb board 130, also can be understood as, and the cable 200 be placed in groove 133 is no more than the surface of pcb board 130.In the present embodiment, light emitting source 131 is LED, and LED distributes along the periphery of pcb board 130.
Groove 133 makes more smooth being arranged on pcb board 130 of cable 200, and then makes its difficult drop-off, increases the reliability of backlight module 10.
Light guide plate 120 comprises first substrate 121, and second substrate 122.Wherein, the sheathed first substrate 121 of second substrate 122, and second substrate 122 is provided with some placement position 122A mated with light emitting source 131 and components and parts 132, light emitting source 131 and components and parts 132 are placed in be placed in the 122A of position, and shadow shield 110 covers second substrate 122, first substrate 121 is not blocked plate 110 and covers.It is specially, and cover apertured is offered at the middle part of second substrate 122, and some placement position 122A arranged along cover apertured.The peripheral side of first substrate 121 abuts with the inwall of cover apertured, and two surfaces of first substrate 121 and second substrate 122 correspondence are concordant, and also can be understood as, first substrate 121 is identical with the thickness of second substrate 122.In addition, the periphery of light emitting source 131 abuts with placement position 122A.In other embodiments, the thickness of first substrate 121 also can be greater than the thickness of second substrate 122.
Above-mentioned backlight module 10 light source is placed in the placement position 122A of light guide plate 120, light source is made to contact tightr with light guide plate 120, and, due to light guide plate 120 ambient light source, the light making light source send from different perspectives all enters in light guide plate 120, makes full use of the light that light source sends, and improves the utilization rate of light, and then relatively can reduce the quantity of light source, cost-saving.In addition, because light guide plate 120 comprises two substrates, can change according to actual conditions the first substrate 121 being positioned at second substrate 122, make it be applicable to different products, increase its versatility, and save design cost.
In order to further increase the utilization rate of the light that light emitting source 131 sends, in the present embodiment, the end face of light emitting source 131 is less than the degree of depth of placing position 122A to the distance of pcb board 130.For another example, placing position 122A is blind hole, and the inwall of light source and blind hole abuts against.
Like this, make light guide plate 120 more smooth on the one hand, shadow shield 110 is conveniently set, further increase the utilization rate of the light of light emitting source 131 on the other hand.
In the present embodiment, through hole is offered at the middle part of first substrate 121, for being socketed other mounting.Further, the placement position 122A on second substrate 122 distributes along the through hole periphery of first substrate 121, and namely light emitting source 131 also distributes along the through hole periphery of first substrate 121.
According to actual conditions, the double faced adhesive tape 140 in cable 200, label and body 100 and base stock 150 can omit.
Through hole makes backlight when mounted, more stable, not easily rocks.Light emitting source 131, along the distribution of through hole periphery, makes the luminescence of backlight module 10 more even.
In the present embodiment, the shape of the outline of shadow shield 110, light guide plate 120, double faced adhesive tape 140 is all identical, also can be understood as, and the outward flange of shadow shield 110, light guide plate 120, double faced adhesive tape 140 is concordant.
In the present embodiment, reflection box 400 is silver reflection box 400, the sheathed light guide plate 120 of reflection box 400, and the peripheral side of parcel second substrate 122.Like this, further increase the utilization rate of light in light source, make backlight module 10 luminescence more even.For ease of fixation reflex frame, light guide plate is arranged some recesses, the some protuberances of the corresponding projection of reflection box, recess interference fit described in protuberance described in each and, is firmly installed on light guide plate to make reflection box.
According to actual conditions, reflection box 400 wraps up the side of pcb board 130, light guide plate 120 and shadow shield 110, and two sides launching frame are concordant with two opposing surfaces of shadow shield 110 and pcb board 130.
Like this, further ensure the reliability of launching frame and light guide plate 120 being wrapped up, and then further increase the utilization rate of light in light source.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a backlight module, is characterized in that, comprising: the pcb board that superposition is arranged, light guide plate and shadow shield,
Described pcb board is provided with some light emitting sources;
Described light guide plate comprises first substrate, and second substrate, the sheathed described first substrate of described second substrate, and described second substrate is provided with the placement position that some and described light emitting source mates, and described light emitting source is placed in described placement position;
Described shadow shield hides described second substrate.
2. backlight module according to claim 1, is characterized in that, through hole is offered at the middle part of described first substrate, and described placement position distributes along the periphery of described through hole.
3. backlight module according to claim 1, is characterized in that, the end face of described light emitting source is less than the degree of depth of described placement position to the distance of described pcb board.
4. backlight module according to claim 1, is characterized in that, described backlight module also comprises reflection box, the sheathed described light guide plate of described reflection box, and wraps up the peripheral side of described second substrate.
5. backlight module according to claim 4, it is characterized in that, described reflection box wraps up the side of described pcb board, described light guide plate and described shadow shield, and two of described reflection box sides are concordant with two opposing surfaces of described shadow shield and described pcb board.
6. backlight module according to claim 1, is characterized in that, described backlight module also comprises double faced adhesive tape, and described double faced adhesive tape superposition is arranged on the surface of described pcb board away from described light guide plate, and described double faced adhesive tape is covered to pcb board described in small part.
7. backlight module according to claim 6, is characterized in that, described backlight module also comprises and superposes with described double faced adhesive tape the base stock arranged, and described base stock and described pcb board lay respectively at the both sides of described double faced adhesive tape.
8. backlight module according to claim 1, is characterized in that, described pcb board is provided with the groove for welding cable away from the surface of described light guide plate.
9. backlight module according to claim 8, is characterized in that, described backlight module also comprises cable and label, and one end of described cable is arranged in groove, and concordant with the surface of described pcb board, and described label is arranged on described cable.
10., according to the arbitrary described backlight module of claim 1 to 9, it is characterized in that, described light emitting source is LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560808.5U CN204986649U (en) | 2015-07-29 | 2015-07-29 | Backlight module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560808.5U CN204986649U (en) | 2015-07-29 | 2015-07-29 | Backlight module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986649U true CN204986649U (en) | 2016-01-20 |
Family
ID=55121017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520560808.5U Expired - Fee Related CN204986649U (en) | 2015-07-29 | 2015-07-29 | Backlight module group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204986649U (en) |
-
2015
- 2015-07-29 CN CN201520560808.5U patent/CN204986649U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Baoan District manhole Street Furong Furong Industrial Zone Shenzhen city Guangdong province 518000 Road No. thirty-ninth Building 2 floor Patentee after: SHENZHEN HONGBRIGHT OPTOELECTRONICS Corp.,Ltd. Address before: Baoan District manhole Street Furong Furong Industrial Zone Shenzhen city Guangdong province 518000 Road No. thirty-ninth Building 2 floor Patentee before: SHENZHEN HONGBRIGHT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20210729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |