CN107193159A - Back lighting device and its slimming illuminating module - Google Patents
Back lighting device and its slimming illuminating module Download PDFInfo
- Publication number
- CN107193159A CN107193159A CN201710483837.XA CN201710483837A CN107193159A CN 107193159 A CN107193159 A CN 107193159A CN 201710483837 A CN201710483837 A CN 201710483837A CN 107193159 A CN107193159 A CN 107193159A
- Authority
- CN
- China
- Prior art keywords
- light
- middle section
- circuit board
- pad
- tight housing
- Prior art date
- 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.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention is to disclose a kind of back lighting device and its slimming illuminating module, and slimming illuminating module includes an at least ray structure, at least two pads and a circuit board.Ray structure includes a light tight housing and a light-emitting component therein.The bottom of light tight housing has a middle section and secondly two welding regions of side, and the height of middle section is less than welding region, and light tight housing side have centrally located region top a transparent surface.Pad is respectively arranged on the bottom surface of welding region, and each pad stretches out from its corresponding welding region, to form a weld part to outside.Circuit board has an at least construction opening, and weld part is installed on circuit board, the middle section of light tight housing is placed in construction opening, and then reduces the integral thickness of illuminating module.
Description
Technical field
The present invention be on a kind of luminescence technology, and especially in regard to a kind of back lighting device and its slimming illuminating module.
Background technology
The trend of current notebook computer or relaxed pen electricity using small light and thin as development.In order to effectively reduce the thickness of computer
Degree, in addition to element smaller using volume on the pedestal in notebook computer, on the display screen of notebook computer, also has
Reduce the demand of thickness.In addition, mobile phone is also pursuing slimming design with tablet personal computer, especially mobile phone is to liquid crystal display module
Thickness requirement is more and more strict, and the success or failure and cost that 0.02 millimeter of thickness all can be to project cause significant impact.
In general liquid crystal screen, backlight module and panel module, wherein side-light backlight mould are typically at least contained
Group contains light source module, light guide plate, reflector plate, blooming piece, and light source module includes circuit board and light-emitting component, then by the back of the body
Chase and glue frame are combined into backlight module, then insert metal framework and panel module combination is completed.General known side
The light-emitting component of light formula backlight module includes a housing and a luminous secondary body chip, and that light-emitting component is connected with it is soft
Property circuit board be then arranged on the side of chase, wherein flexible circuit board is located between light-emitting component and chase.Backlight module
Light-guide device is then posted by the chip side of light-emitting component, and has a reflector plate between light-guide device and chase, for anti-
Penetrate the light that light-guide device is scattered.Known light source module is as shown in figure 1, include a flexible circuit board 10, a light tight housing
12nd, a luminous secondary body chip 14 and two pads 16, wherein the side of light tight housing 12 has a transparent surface 18, light-emitting diode
Body chip 14 is located in light tight housing 12, and light tight housing 12 is through pad 16 on flexible circuit board 10.Impermeable bare hull
The bottom of body 12 has a middle section, and the bottom surface of this middle section is flushed with the bottom surface of pad 16, so both are located at simultaneously
On flexible circuit board 10.However, transparent surface 18 is since it is desired that light extraction is just positioned at the top of flexible circuit board 10, but in existing skill
In art, this middle section is light tight region, and also positioned at the top of flexible circuit board 10, and this middle section has thickness d, this
Kind of mounting means not only need not, while can cause the integral thickness of backlight module increases.
Therefore, the present invention is for above-mentioned puzzlement, to propose a kind of back lighting device and its slimming illuminating module, to solve
Certainly known the problem that.
The content of the invention
The main object of the present invention, is to provide a kind of back lighting device and its slimming illuminating module, it is will be light tight
The middle section Shen of the bottom of housing enters in the construction opening of circuit board, to reduce the integral thickness of illuminating module.
For up to above-mentioned purpose, the present invention provides a kind of slimming illuminating module, an at least ray structure, at least two welderings are included
Disk and a circuit board, circuit board are, for example, flexible printed wiring board (FPC).Ray structure is luminous comprising a light tight housing and one
Element, light-emitting component is, for example, luminous secondary body.The bottom of light tight housing has a middle section and secondly two welding of side
Region, the height of middle section is less than welding region, and the side of light tight housing has a transparent surface, light tight housing
Inside has an accommodation space, the top in the centrally located region of transparent surface.Light-emitting component is located at appearance on light tight housing
In between being empty, light-emitting component is luminous towards transparent surface.Pad is respectively arranged on the bottom surface of welding region, and each pad is from its corresponding weldering
Connect region to stretch out, to form a weld part to outside.The bottom surface of each pad and the bottom surface of middle section are contour, weld part
Its corresponding level altitude of pad one is above, level altitude is equal to the thickness of middle section, and this thickness is, for example, 0.03~0.2
Millimetre.Circuit board has an at least construction opening, and weld part is installed on circuit board, the middle section of light tight housing is put
Enter in construction opening, and flush the lower edge of transparent surface and the top surface of circuit board, and to be that part is placed in its right for each pad
In the construction opening answered.
When the quantity of ray structure is a plurality of, and construction opening quantity also for it is a plurality of when, all construction openings are
Arranged in a straight line in one, each ray structure is located on circuit board using at least two pads, and the middle section of all ray structures
It is respectively implanted in all construction openings.
The present invention also provides a kind of back lighting device, includes plural ray structure, plural pad, a circuit board, a light guide plate
With a framework, circuit board is, for example, flexible printed wiring board (FPC).Each ray structure is luminous comprising a light tight housing and one
Element, light-emitting component is, for example, luminous secondary body.The bottom of light tight housing has a middle section and secondly two welding of side
Region, the height of middle section is less than welding region, and the side of light tight housing has a transparent surface, light tight housing
Inside has an accommodation space, the top in the centrally located region of transparent surface.Light-emitting component is located at appearance on light tight housing
In between being empty, light-emitting component is luminous towards transparent surface.Pad is respectively arranged on the bottom surface of the welding region of ray structure, and each pad is certainly
Its corresponding welding region stretches out, to form a weld part to outside.The bottom surface of each pad and the bottom surface of middle section
Contour, weld part is above its corresponding level altitude of pad one, and level altitude is equal to the thickness of middle section, and this thickness is for example
For 0.03~0.2 millimeter.Circuit board has plural construction opening, and all construction openings are arranged in a straight line in one.Weld part is installed
In on circuit board, the middle section of the light tight housing of ray structure is respectively implanted in construction opening, and flush printing opacity
The lower edge in face and the top surface of circuit board, and each pad is that part is placed in its corresponding construction opening.Light guide plate is portion
Divide build-up wiring board, and through material bonding circuit board is pasted, paste material for example, double faced adhesive tape.The side of light guide plate has one to enter light
Face, incidence surface adjoining transparent surface.Framework is limit circuit plate, ray structure and light guide plate.
Your hereby further understand to make juror more have the architectural feature of the present invention and the effect reached with recognizing
Know, careful assistant is with preferred embodiment figure and coordinates detailed description, illustrates as after：
Brief description of the drawings
Fig. 1 is the structural representation of the light source module of prior art.
Fig. 2 is the structural perspective of the first embodiment of the slimming illuminating module of the present invention.
Fig. 3 is the structure sectional view of the A-A ' lines along Fig. 2 of the slimming illuminating module of the present invention.
Fig. 4 is the structural perspective of the second embodiment of the slimming illuminating module of the present invention.
Fig. 5 is the structure sectional view of the back lighting device of the present invention.
Drawing reference numeral explanation：
10 flexible circuit boards
12 light tight housings
14 luminous secondary body chips
16 pads
18 transparent surfaces
20 ray structures
22 pads
24 circuit boards
26 light tight housings
28 light-emitting components
30 middle sections
32 welding regions
34 transparent surfaces
36 accommodation spaces
38 weld parts
40 construction openings
42 lower edges
44 top surfaces
46 light guide plates
48 frameworks
50 paste material
52 incidence surfaces
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Embodiments of the invention will further be explained by hereafter cooperation correlative type.As far as possible, in schema with
In specification, identical label is to represent same or similar component.In schema, indicated based on simplifying with convenient, shape and thickness
May be by exaggerating expression.It is understood that not expressly shown in schema or the element that is described in specification, be belonging to
There is the form known to usual operator in technical field.The usual operator of this area can be carried out according to present disclosure
A variety of changes and modification.
Refer to Fig. 2 and Fig. 3.The first embodiment of the slimming illuminating module of the present invention is described below.The present invention's is thin
The first embodiment of type illuminating module includes an at least ray structure 20, at least two pads 22 and a circuit board 24, first
In embodiment, circuit board 24 is, for example, flexible printed wiring board (FPC), the quantity of ray structure 20 and pad 22 respectively with one with
Exemplified by two.Ray structure 20 includes a light tight light-emitting component 28 of housing 26 and one, and light-emitting component 28 is, for example, luminous secondary body.
The bottom of light tight housing 26 has a middle section 30 and secondly two welding regions 32 of side, the height of middle section 30 is low
There is a transparent surface 34 in the side of welding region 32, and light tight housing 26.The inside of light tight housing 26 has one to house
Space 36, the top in the centrally located region 30 of transparent surface 34.One region of light tight housing 26 is that have a light-transmitting materials, this area
Domain is then as transparent surface 34.Or, light tight housing 26 has the opening of connection accommodation space 36, and this opening is as transparent surface
34.Light-emitting component 28 is on light tight housing 26, and in accommodation space 36, and light-emitting component 28 is luminous towards transparent surface 34.
Pad 22 is respectively arranged on the bottom surface of welding region 32, and each pad 22 stretches out from its corresponding welding region 32, with external
Portion forms a weld part 38.The bottom surface and the bottom surface of middle section 30 of each pad 22 are contour, and weld part 38 is above its correspondence
Pad 22 1 level altitude D, level altitude D is equal to the thickness of middle section 30, and this thickness is, for example, 0.03~0.2 millimeter.
When the slimming illuminating module of the present invention is applied in intelligent mobile phone, the thickness of middle section 30 is 0.03~0.07 millimeter,
Apply in tablet personal computer, the thickness of middle section 30 is 0.2 millimeter.Circuit board 24 has an at least construction opening 40, the
In one embodiment, the quantity of construction opening 40 is exemplified by one.Weld part 38 is installed on circuit board 24, by light tight housing 26
Middle section 30 be placed in construction opening 40, and flush the lower edge 42 of transparent surface 34 and the top surface 44 of circuit board 24, and
Each pad 22 is that part is placed in its corresponding construction opening 40.Because the middle section 30 of light tight housing 26 can be with Shen
In the construction opening 40 for entering circuit board 24, therefore the integral thickness of slimming illuminating module can be reduced, and then it is luminous to reduce slimming
The cost of module.
Refer to Fig. 4.The second embodiment of the slimming illuminating module of the present invention is described below.The slimming hair of the present invention
The second embodiment of optical mode group is in a second embodiment that the quantity of ray structure 20 is plural number with first embodiment difference
It is individual, and the quantity of construction opening 40 is also a plurality of, all construction openings 40 are, each ray structure 20 profits arranged in a straight line in one
With two pads 22 on circuit board 24, and the middle section 30 of all ray structures 20 is respectively implanted in all construction openings 40
In, to reduce the integral thickness of slimming illuminating module.
Refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 5.The back lighting device of the present invention is described below.The back lighting device of the present invention is included
Plural ray structure 20, plural pad 22, a circuit board 24, a light guide plate 46 and a framework 48, circuit board 24 are for example, soft
Printed circuit board (PCB) (FPC).Each ray structure 20 includes a light tight light-emitting component 28 of housing 26 and one, and light-emitting component 28 is for example
For luminous secondary body.The bottom of light tight housing 26 has a middle section 30 and secondly two welding regions 32 of side, central area
The height in domain 30 is less than welding region 32, and the side of light tight housing 26 has a transparent surface 34, light tight housing 26
Inside has an accommodation space 36, the top in the centrally located region 30 of transparent surface 34.One region of light tight housing 26 is that have
One light-transmitting materials, this region is then as transparent surface 34.Or, light tight housing 26 has the opening of connection accommodation space 36, this
Opening is as transparent surface 34.Light-emitting component 28 is located in accommodation space 36, light-emitting component 28 on light tight housing 26
It is luminous towards transparent surface 34.Pad 22 is respectively arranged on the bottom surface of the welding region 32 of ray structure 20, and each pad 22 is corresponding from it
Welding region 32 stretch out, with to outside formed a weld part 38.The bottom surface of each pad 22 and the bottom of middle section 30
Face is contour, and weld part 38 is above its corresponding level altitude D of pad 22 1, and level altitude D is equal to the thickness of middle section 30,
This thickness is, for example, 0.03~0.2 millimeter.When the slimming illuminating module of the present invention is applied in intelligent mobile phone, middle section
30 thickness is 0.03~0.07 millimeter, is applied in tablet personal computer, and the thickness of middle section 30 is 0.2 millimeter.Circuit board 24
With plural construction opening 40, all construction openings 40 are arranged in a straight line in one.Weld part 38 is installed on circuit board 24, will
The middle section 30 of the light tight housing 26 of ray structure 20 is respectively implanted in construction opening 40, and is flushed under transparent surface 34
The top surface 44 at edge 42 and circuit board 24, and each pad 22 is that part is placed in its corresponding construction opening 40.Light guide plate
46 be part build-up wiring board 24, and through the bonding circuit board 24 of material 50 is pasted, it is, for example, double faced adhesive tape to paste material 50.Light guide plate 46
Side have an incidence surface 52, incidence surface 52 adjoining transparent surface 34.Framework 48 is limit circuit plate 24, ray structure 20 with leading
Tabula rasa 46.Because the middle section 30 of light tight housing 26 can be entered with Shen in the construction opening 40 of circuit board 24, therefore the back of the body can be reduced
The integral thickness of electro-optical device, and then reduce the cost of back lighting device.
In summary, the present invention opens the installation that the light tight region Shen of the lower section of the transparent surface of ray structure enters circuit board
In mouthful, to reduce the integral thickness of slimming illuminating module.
As described above, only a preferred embodiment of the present invention, not for limiting the scope that the present invention is implemented, therefore
Such as according to the shape described in scope of the present invention patent, construction, feature and spirit institute equivalent changes and modifications for it, it all should wrap
Include in the claim of the present invention.
Claims (15)
1. one kind slimming illuminating module, it is characterised in that it is to include：
An at least ray structure, comprising：
One light tight housing, its bottom has a middle section and secondly two welding regions of side, and the height of the middle section is
Less than those welding regions, and the side of the light tight housing has a transparent surface, and the inside of the light tight housing has one to hold
Between being empty, the transparent surface is located at the top of the middle section；And
One light-emitting component, on the light tight housing, and in the accommodation space, the light-emitting component is sent out towards the transparent surface
Light；
At least two pads, are respectively arranged on the bottom surface of those welding regions, and each pad is outside from its corresponding welding region
Extension, to form a weld part to outside；And
One circuit board, with an at least construction opening, the weld part is installed on the circuit board, by being somebody's turn to do for the light tight housing
Middle section is placed in an at least construction opening, and flushes the lower edge of the transparent surface and the top surface of the circuit board.
2. illuminating module is thinned as claimed in claim 1, it is characterised in that the bottom surface of each of which pad and the center
The bottom surface in region is contour, and the weld part is above its corresponding level altitude of pad one, and the level altitude is equal to the central area
The thickness in domain, and each pad is that part is placed in its corresponding at least construction opening.
3. illuminating module is thinned as claimed in claim 1, it is characterised in that wherein the thickness of the middle section is 0.03
~0.2 millimeter.
4. illuminating module is thinned as claimed in claim 1, it is characterised in that wherein the circuit board is flexible printer circuit
Plate.
5. illuminating module is thinned as claimed in claim 1, it is characterised in that wherein an at least light-emitting component is luminous two
Level body.
6. slimming illuminating module as claimed in claim 1, it is characterised in that the quantity of a wherein at least ray structure is
A plurality of, the quantity of an at least construction opening is a plurality of, and each ray structure is located at the electricity using at least two pads
On the plate of road, and the middle section of those ray structures is respectively implanted in those construction openings.
7. illuminating module is thinned as claimed in claim 6, it is characterised in that wherein those construction openings are in straight line row
Row.
8. a kind of back lighting device, it is characterised in that it is to include：
Plural ray structure, each ray structure is included：
One light tight housing, its bottom has a middle section and secondly two welding regions of side, and the height of the middle section is
Less than those welding regions, and the side of the light tight housing has a transparent surface, and the inside of the light tight housing has one to hold
Between being empty, the transparent surface is located at the top of the middle section；And
One light-emitting component, on the light tight housing, and in the accommodation space, the light-emitting component is sent out towards the transparent surface
Light；
Plural pad, is respectively arranged on the bottom surface of those welding regions of those ray structures, each pad from its it is corresponding should
Welding region stretches out, to form a weld part to outside；
One circuit board, with plural construction opening, the weld part is installed on the circuit board, by those ray structures this not
The middle section of light-permeable shell is respectively implanted in those construction openings, and flushes the lower edge and the circuit board of the transparent surface
Top surface；And
One light guide plate, partly overlaps the circuit board, and binds the circuit board through material is pasted, and the side of the light guide plate has one to enter
Smooth surface, the incidence surface abuts the transparent surface.
9. back lighting device as claimed in claim 8, it is characterised in that the bottom surface of each of which pad and the middle section
Bottom surface is contour, and the weld part is above its corresponding level altitude of pad one, and the level altitude is equal to the thickness of the middle section
Degree, and each pad is that part is placed in its corresponding construction opening.
10. the thickness of back lighting device as claimed in claim 8, the wherein middle section is 0.03~0.2 millimeter.
11. back lighting device as claimed in claim 8, it is characterised in that wherein the circuit board is flexible printed wiring board.
12. back lighting device as claimed in claim 8, it is characterised in that wherein the light-emitting component is luminous secondary body.
13. back lighting device as claimed in claim 8, it is characterised in that wherein those construction openings are arranged in a straight line in one.
14. back lighting device as claimed in claim 8, it is characterised in that wherein this pastes material for double faced adhesive tape.
15. back lighting device as claimed in claim 8, it is characterised in that further include a framework, it is the spacing circuit board, is somebody's turn to do
A little ray structures and the light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710483837.XA CN107193159A (en) | 2017-06-22 | 2017-06-22 | Back lighting device and its slimming illuminating module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710483837.XA CN107193159A (en) | 2017-06-22 | 2017-06-22 | Back lighting device and its slimming illuminating module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107193159A true CN107193159A (en) | 2017-09-22 |
Family
ID=59878739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710483837.XA Pending CN107193159A (en) | 2017-06-22 | 2017-06-22 | Back lighting device and its slimming illuminating module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107193159A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113936545A (en) * | 2021-10-15 | 2022-01-14 | 业成科技（成都）有限公司 | Backlight module and manufacturing method thereof |
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| CN101281942A (en) * | 2007-04-06 | 2008-10-08 | 群康科技(深圳)有限公司 | LED and backlight module using the same |
| CN101566290A (en) * | 2008-04-25 | 2009-10-28 | 爱普生映像元器件有限公司 | Lighting device, electro-optic device, and electronic device |
| JP2010210891A (en) * | 2009-03-10 | 2010-09-24 | Hitachi Displays Ltd | Liquid crystal display |
| US20110242448A1 (en) * | 2010-03-30 | 2011-10-06 | Hitachi Displays, Ltd. | Liquid crystal display device |
| CN104698828A (en) * | 2015-03-17 | 2015-06-10 | 深圳市华星光电技术有限公司 | Intelligent wrist watch and liquid crystal display |
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2017
- 2017-06-22 CN CN201710483837.XA patent/CN107193159A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281942A (en) * | 2007-04-06 | 2008-10-08 | 群康科技(深圳)有限公司 | LED and backlight module using the same |
| CN101566290A (en) * | 2008-04-25 | 2009-10-28 | 爱普生映像元器件有限公司 | Lighting device, electro-optic device, and electronic device |
| JP2010210891A (en) * | 2009-03-10 | 2010-09-24 | Hitachi Displays Ltd | Liquid crystal display |
| US20110242448A1 (en) * | 2010-03-30 | 2011-10-06 | Hitachi Displays, Ltd. | Liquid crystal display device |
| CN104698828A (en) * | 2015-03-17 | 2015-06-10 | 深圳市华星光电技术有限公司 | Intelligent wrist watch and liquid crystal display |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113936545A (en) * | 2021-10-15 | 2022-01-14 | 业成科技（成都）有限公司 | Backlight module and manufacturing method thereof |
| CN113936545B (en) * | 2021-10-15 | 2024-01-16 | 业成科技（成都）有限公司 | Backlight module and manufacturing method thereof |
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Application publication date: 20170922 |
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