CN204986648U - Grafting device in a poor light - Google Patents
Grafting device in a poor light Download PDFInfo
- Publication number
- CN204986648U CN204986648U CN201520560807.0U CN201520560807U CN204986648U CN 204986648 U CN204986648 U CN 204986648U CN 201520560807 U CN201520560807 U CN 201520560807U CN 204986648 U CN204986648 U CN 204986648U
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- Prior art keywords
- grafting
- lighting device
- back lighting
- light
- pcb board
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Abstract
The utility model relates to a grafting device in a poor light, include: photomask, light guide plate, PCB board that the order stack set up, be equipped with a plurality of light sources on the PCB board, the light guide plate has an at least installation region and an at least light zone territory, the installation region is equipped with the first grafting position that is used for the grafting, and is used for placing the light source place the position, the light source holding in place in the position, the photomask covers the light guide plate the installation region, just the photomask have with match the first position of pegging graft is used for the second socket position of pegging graft. Above -mentioned grafting device in a poor light can directly peg graft on the host computer of needs, makes its installation simple, convenient, and convenient maintenance and detection.
Description
Technical field
The utility model relates to electronics industry, particularly relates to a kind of grafting back lighting device.
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 is in the market inconvenient to keep in repair and detect, and cost is higher
Utility model content
Based on this, be necessary to provide that a kind of assembling is simple, convenient for maintaining and detection, lower-cost grafting back lighting device.
A kind of grafting back lighting device, comprising: photomask, light guide plate, pcb board that laminated structure is arranged,
Described pcb board is provided with some light sources;
Described light guide plate has at least one installation region and at least one light-emitting zone, and described installation region is provided with the first grafting position for grafting, and for placing the placement position of described light source, described light source is placed in described placement position;
Described photomask hides the described installation region of described light guide plate, and described photomask has the second grafting position for grafting of mating with described first grafting position.
Wherein in an embodiment, described installation region and described light-emitting zone are one, and are connected to each other.
Wherein in an embodiment, described installation region is strip, and described placement position is multiple, and is distributed in the described installation region of strip along straight line.
Wherein in an embodiment, described grafting back lighting device also comprises diffusion barrier, and described diffusion barrier superposition is arranged on described light guide plate, be connected, and described diffusion barrier hides described light-emitting zone with described photomask.
Wherein in an embodiment, described grafting back lighting device also comprises reflectance coating, and described reflectance coating superposition is arranged on the surface of described pcb board away from described light guide plate, and at least covers described luminous zone.
Wherein in an embodiment, described reflectance coating hides described light-emitting zone, and described pcb board is positioned at described installation region, and the outline of described reflectance coating is concordant with the outline of described light-emitting zone.
Wherein in an embodiment, described installation region is provided with barrier film towards the surface of described reflectance coating, and described barrier film and described reflectance coating and described pcb board abut against, and described pcb board is between the described barrier film be oppositely arranged.
Wherein in an embodiment, described reflectance coating is silver reflectance coating.
Wherein in an embodiment, described pcb board be also provided with components and parts and be arranged at outward extending inserting terminal on described pcb board, described components and parts are placed in the described placement position corresponding with it.
Wherein in an embodiment, described pcb board is arranged on described light guide plate by double faced adhesive tape.
Above-mentioned grafting back lighting device, can directly be plugged on the main frame of needs, makes its installation simple, convenient, and convenient for maintaining and detection.And, light source is placed in the placement position of light guide plate, light source is made to contact with light guide plate tightr, 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.
The installation region order of strip is installed more stable, firm.Place position to distribute along straight line, order processing is more simple, and the light source be placed in placement position distributes along straight line, makes it more easily align with placement position, simplifies and install.
Barrier film assists reflectance coating to locate, and order is installed easier, enhances productivity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the grafting back lighting device of the utility model one preferred embodiment;
Fig. 2 is the explosive view of the back lighting device of grafting 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 Figures 1 and 2, it is respectively structural representation and the explosive view thereof of the grafting back lighting device 10 of the utility model one preferred embodiment.
Grafting back lighting device 10, comprising: photomask 100, light guide plate 200, pcb board 300, diffusion barrier 400 and reflectance coating 500.Wherein, photomask 100, light guide plate 200, pcb board 300 laminated structure are arranged, and pcb board 300 is arranged on light guide plate 200 by double faced adhesive tape 600.Diffusion barrier 400 and photomask 100 are all arranged at the similar face of light guide plate 200, reflectance coating 500 and pcb board 300 be all arranged at light guide plate 200 another on the surface.In the present embodiment, diffusion barrier 400 is concordant with the surface of photomask 100.
Pcb board 300 is provided with some light sources 310, some components and parts 320, and outward extending inserting terminal 330, and inserting terminal 330 is for connecting the main frame of grafting back lighting device 10 described in grafting.In the present embodiment, light source 310 is LED.
Light guide plate 200 has at least one installation region 210 and at least one light-emitting zone 220.Wherein, installation region 210 is provided with the first grafting position 211 for grafting, and for placing the placement position 212 of light source 310 and components and parts 320.Light source 310 and components and parts 320 are all placed in the placement position 212 corresponding with it.
Photomask 100 hides the installation region 210 of light guide plate 200, and photomask 100 has the second grafting position 110 for grafting of mating with the first grafting position 211, such as the second grafting position 110 and the first grafting position 211 be arranged in parallel, and for example, the second grafting position 110 and the first grafting position 211 are symmetrical arranged.Can be understood as, light-emitting zone 220 is not blocked film 100 and hides, and the part outline that photomask 100 arranges the side of the second grafting position 110 corresponding with light guide plate 200 overlaps, to make the concordant of the first grafting position 211 and the second grafting position 110 yet.
When using above-mentioned grafting back lighting device 10, grafting back lighting device 10 is directly plugged on the main frame of needs, and connects the main frame of application grafting back lighting device 10 by inserting terminal 330.
Above-mentioned grafting back lighting device 10, can directly be plugged on the main frame of needs, makes its installation simple, convenient, and convenient for maintaining and detection.And, light source 310 is placed in the placement position 212 of light guide plate 200, light source 310 is made to contact tightr with light guide plate 200, due to light guide plate 200 ambient light source 310, the light making light source 310 send from different perspectives all enters in light guide plate 200, makes full use of the light that light source 310 sends, and improves the utilization rate of light, and then relatively can reduce the quantity of light source 310, cost-saving.
In the present embodiment, installation region 210 and light-emitting zone 220 are one, and are connected to each other.Installation region 210 and light-emitting zone 220 are strip.Further, it is multiple for placing position 212, and is distributed in the installation region 210 of strip along straight line, distributes along straight line to make light source 310.
The installation region 210 of strip makes installation more stable, firm.Placement position 212 is along straight line distribution, and order processing is more simple, and the light source 310 be placed in placement position 212 is along straight line distribution, makes it more easily align with placement position 212, simplifies installation.
In order to further increase the utilization rate of the light that light emitting source 310 sends, such as, the end face of light emitting source 310 is less than the degree of depth of placing position 212 to the distance of pcb board 300.For another example, placing position 212 is blind hole, and light source 310 abuts against with the inwall of blind hole.
Like this, make light guide plate 200 more smooth on the one hand, photomask 100 is conveniently set, further increase the utilization rate of the light of light emitting source 310 on the other hand.
According to actual conditions, in order to make the luminescence of grafting back lighting device 10 more even, the distance between multiple light source 310 is different.Such as, the different setting of spacing between each adjacent light source, and for example, spacing between each adjacent light source in centre position is less than the spacing between each adjacent light source of marginal position, such as, to two edges in the middle part of light guide plate 200, distance intensive setting gradually between adjacent two light sources 310, also can be understood as, the distance between the light source 310 at light guide plate 200 edge is less, and the distance between the adjacent light source 310 in the middle part of light guide plate 200 is larger.
Like this, make the side brightness of grafting back lighting device 10 identical with middle part brightness, there will not be the unequal phenomenon of light and shade.
For another example, also reflection bar is comprised, the side of the light-emitting zone 220 of reflection bar parcel light guide plate 200.Like this, the brightness at grafting back lighting device 10 edge is increased by reflection bar.
In the present embodiment, diffusion barrier 400 superposition is arranged on light guide plate 200, be connected, and diffusion barrier 400 hides light-emitting zone 220, to make grafting back lighting device 10 luminescence more even with photomask 100.
Reflectance coating 500 is silver reflectance coating 500.Reflectance coating 500 superposition is arranged on the surface of pcb board 300 away from light guide plate 200, and at least covers luminous zone.Such as, only cover light-emitting zone 220, pcb board 300 is positioned at installation region 210, and the outline of reflectance coating 500 is concordant with the outline of light-emitting zone 220.For another example, cover light-emitting zone 220 and installation region 210 simultaneously.And for example, reflectance coating is attached on the surface of pcb board 300 away from light guide plate 200, and all covers luminous zone.Like this, reflecting effect can be guaranteed.
When reflectance coating 500 only covers light-emitting zone 220, in order to make reflectance coating 500 position more accurate, light guide plate 200 is also provided with stop part.Such as, installation region 210 is provided with barrier film 230 towards the surface of reflectance coating 500, and barrier film 230 abuts against with reflectance coating 500 and pcb board 300, and pcb board 300 is between the barrier film 230 be oppositely arranged.Also can be understood as, barrier film 230 is two, and is relatively arranged on two sides of light guide plate 200, surrounds accepting groove with light guide plate 200.Pcb board 300 is placed in accepting groove, and reflectance coating 500 side and two barrier films 230 abut against, to limit the position of reflectance coating 500.
Barrier film 230 assists reflectance coating 500 to locate, and order is installed easier, enhances productivity.
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 grafting back lighting device, is characterized in that, comprising: photomask, light guide plate, pcb board that laminated structure is arranged,
Described pcb board is provided with some light sources;
Described light guide plate has at least one installation region and at least one light-emitting zone, and described installation region is provided with the first grafting position for grafting, and for placing the placement position of described light source, described light source is placed in described placement position;
Described photomask hides the described installation region of described light guide plate, and described photomask has the second grafting position for grafting of mating with described first grafting position.
2. grafting back lighting device according to claim 1, is characterized in that, described installation region and described light-emitting zone are one, and are connected to each other.
3. grafting back lighting device according to claim 1, is characterized in that, described installation region is strip, and described placement position is multiple, and is distributed in the described installation region of strip along straight line.
4. grafting back lighting device according to claim 1, is characterized in that, described grafting back lighting device also comprises diffusion barrier, and described diffusion barrier superposition is arranged on described light guide plate, be connected, and described diffusion barrier hides described light-emitting zone with described photomask.
5. grafting back lighting device according to claim 1, is characterized in that, described grafting back lighting device also comprises reflectance coating, and described reflectance coating superposition is arranged on the surface of described pcb board away from described light guide plate, and at least covers described luminous zone.
6. grafting back lighting device according to claim 5, is characterized in that, described reflectance coating hides described light-emitting zone, and described pcb board is positioned at described installation region, and the outline of described reflectance coating is concordant with the outline of described light-emitting zone.
7. grafting back lighting device according to claim 6, it is characterized in that, described installation region is provided with barrier film towards the surface of described reflectance coating, and described barrier film and described reflectance coating and described pcb board abut against, and described pcb board is between the described barrier film be oppositely arranged.
8. grafting back lighting device according to claim 5, is characterized in that, described reflectance coating is silver reflectance coating.
9. grafting back lighting device according to claim 1, is characterized in that, described pcb board is also provided with components and parts and is arranged at outward extending inserting terminal on described pcb board, and described components and parts are placed in the described placement position corresponding with it.
10. grafting back lighting device according to claim 1, is characterized in that, described pcb board is arranged on described light guide plate by double faced adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560807.0U CN204986648U (en) | 2015-07-29 | 2015-07-29 | Grafting device in a poor light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560807.0U CN204986648U (en) | 2015-07-29 | 2015-07-29 | Grafting device in a poor light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986648U true CN204986648U (en) | 2016-01-20 |
Family
ID=55121016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520560807.0U Expired - Fee Related CN204986648U (en) | 2015-07-29 | 2015-07-29 | Grafting device in a poor light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204986648U (en) |
-
2015
- 2015-07-29 CN CN201520560807.0U patent/CN204986648U/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 |