CN107728250A - A kind of mobile phone backlight module and its manufacture method - Google Patents
A kind of mobile phone backlight module and its manufacture method Download PDFInfo
- Publication number
- CN107728250A CN107728250A CN201710984163.1A CN201710984163A CN107728250A CN 107728250 A CN107728250 A CN 107728250A CN 201710984163 A CN201710984163 A CN 201710984163A CN 107728250 A CN107728250 A CN 107728250A
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- China
- Prior art keywords
- enhancement film
- bright enhancement
- light guide
- guide plate
- mobile phone
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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.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
A kind of mobile phone backlight module, including glue frame and the backlight membrane material that is arranged in glue frame, it is characterised in that：The backlight membrane material includes black and white glue, upper bright enhancement film, lower bright enhancement film, light guide plate and the reflectance coating from top to bottom to fit together successively, and the upper surface of the light guide plate sets lattice point structure, and lower surface sets V CUT slot structures.The mobile phone backlight module thickness is thinned, process is simplified, efficiency and yield improve.A kind of manufacture method for the mobile phone backlight module that thickness is thinned, process simplifies also is provided in addition.
Description
Technical field
The present invention relates to mobile phone manufacturing technology field, and in particular to a kind of mobile phone backlight module and its manufacture method.
Background technology
The structure of existing mobile phone backlight module is as shown in figure 1, including glue frame 1a and the backlight being arranged on glue frame 1a
Membrane material；The backlight membrane material include from top to bottom fit together successively black and white glue 2a, upper bright enhancement film 3a, lower bright enhancement film 4a,
Lower diffusion barrier 5a, light guide plate 6a and reflectance coating 7a；The reflectance coating 7a is be bonded by double faced adhesive tape 8a with glue frame 1a bottom, described
Light guide plate 6a, lower diffusion barrier 5a, lower bright enhancement film 4a and upper bright enhancement film 3a are overlayed on reflectance coating 7a successively and top pass through it is black
White glue 2a is fixed in glue frame 1a, generally for the uniformity of further increase light, can also increase on upper bright enhancement film 3a on
Diffusion barrier.
But there is following technical problem in existing mobile phone backlight module：Because light guide plate 6a is typically by the Asia of high transmission rate
Gram force plastics are made, and its lower surface is provided with lattice point structure, and upper surface unusual light is smooth, it is therefore necessary to is set on light guide plate 6a
Lower diffusion barrier 5a can just make light more uniform, and it is more so to allow for the number of plies of backlight film material, not only causes whole backlight mould
Group thickness is thicker, and assembling procedure is more, is unfavorable for the raising of efficiency and yield.
The content of the invention
The technical problem to be solved in the present invention is：The hand that a kind of thinned thickness, process simplification, efficiency and yield improve is provided
Machine backlight module.
The present invention technical solution be：A kind of mobile phone backlight module, including glue frame and the back of the body that is arranged in glue frame
Light membrane material, it is characterised in that：The backlight membrane material include from top to bottom fit together successively black and white glue, upper bright enhancement film, under
Bright enhancement film, light guide plate and reflectance coating, the upper surface of the light guide plate set lattice point structure, and lower surface sets V-CUT slot structures.
After said structure, the present invention has advantages below：
Mobile phone backlight module of the present invention sets lattice point structure in the upper surface of light guide plate, can be formed light guide plate upper surface bright
Aobvious granular sensation, play good scattering process and make uniform light, so as to save one layer of lower diffusion barrier；Under light guide plate
Surface sets V-CUT slot structures, and V-CUT slot structures are sawtooth or semicircular structure, and light can be made to produce refraction and total reflection, from
And light can be made more to flock together and increase light guide plate luminance；Therefore the processing of light guide plate upper and lower surface causes backlight mould
The brightness of light needed for group and the uniformity can be guaranteed, and eliminate one layer of lower diffusion barrier, so that backlight module
Integral thickness is thinned, process is simplified, efficiency and yield are improved.
Preferably, the upper bright enhancement film and lower bright enhancement film are composite bright enhancement film.The setting is substituted using composite bright enhancement film
The existing upper bright enhancement film being separated from each other and lower bright enhancement film, it is clear that thickness is thinner, and saves a procedure, efficiency and yield
Also it is higher.
Preferably, the mist degree of the composite bright enhancement film upper surface is 70%-80%.The setting is by improving compound add lustre to
The mist degree of film upper surface makes light more uniform, so as to substitute the effect of upper diffusion barrier well, saves whole after diffusion barrier
Body thickness is further thinned, and process further simplifies.
Preferably, model ASOC4-LS-82 (24) HH of the composite bright enhancement film.The composite bright enhancement film of the model can
Meet above-mentioned parameter demand well.
Preferably, the mist degree of the light guide plate upper surface is 30%-50%.The setting can further make light more equal
It is even, so as to be combined the effect for preferably substituting lower diffusion barrier with lattice point structure.
Another technical problem to be solved by the present invention is that：The mobile phone backlight module that a kind of thickness is thinned, process simplifies is provided
Manufacture method.
The present invention another technical solution be：A kind of manufacture method of mobile phone backlight module, it is characterised in that：It is wrapped
Include following steps：
(1) light guide plate for being molded by upper surface using having meshed injection mold and carrying lattice point structure；
(2) V-CUT slot structures are milled out in light guide plate lower surface using V-arrangement cutting die；
(3) light guide plate upper surface is moved upwards through into buckle structure in glue frame；
(4) composite bright enhancement film is installed on light guide plate, and black and white glue is pasted so that compound add lustre on composite bright enhancement film
Film is fixed in glue frame.
After the above method, the present invention has advantages below：
The manufacture method of mobile phone backlight module of the present invention sets lattice point structure to make uniform light in the upper surface of light guide plate,
So as to save one layer of lower diffusion barrier, thickness is thinned；Using composite bright enhancement film substitute the existing upper bright enhancement film being separated from each other and
Lower bright enhancement film, it is clear that thickness is thinner；In addition V-CUT slot structures are set to increase light guide plate luminance in the lower surface of light guide plate
Add；Therefore the processing of light guide plate upper and lower surface causes the brightness of the light needed for backlight module and the uniformity to be guaranteed,
And one layer of lower diffusion barrier is eliminated, and it make use of the composite bright enhancement film of thinner thickness so that the integral thickness of backlight module is thinned,
Process is simplified, efficiency and yield are improved.
Preferably, the step of patch reflectance coating in glue frame is additionally included in after the step (3) and before step (4), or
The step of patch reflectance coating in glue frame is additionally included in before step described in person (3) and after step (2).The step of pasting reflectance coating can root
Flexibly selected according to actual conditions.
Preferably, the step of also including patch backlight FPC after the step (3) and before step (4), the backlight
FPC is integrated with LED.The setting can make that backlight FPC's is easier for installation.
Preferably, also include the haze treatment to light guide plate upper surface, the light guide plate upper surface in the step (1)
Mist degree be 30%-50%.The setting can further make light more uniform, preferably substitute so as to be combined with lattice point structure
The effect of lower diffusion barrier.
Preferably, before composite bright enhancement film is installed on light guide plate in the step (4), in addition to composite bright enhancement film
The haze treatment of upper surface, the mist degree of the composite bright enhancement film upper surface is 70%-80%.The setting is by improving compound add lustre to
The mist degree of film upper surface makes light more uniform, so as to substitute the effect of upper diffusion barrier well, saves whole after diffusion barrier
Body thickness is further thinned, and process further simplifies.
Brief description of the drawings：
Fig. 1 is the structural representation of existing mobile phone backlight module；
Fig. 2 is the structural representation of mobile phone backlight module of the present invention；
Fig. 3 is the structural representation of light guide plate of the present invention；
Fig. 4 is the structural representation of composite bright enhancement film of the present invention；
In prior art diagram：1a- glue frames, 2a- black and white glue, the upper bright enhancement films of 3a-, bright enhancement film under 4a-, diffusion barrier under 5a-,
6a- light guide plates, 7a- reflectance coatings, 8a- double faced adhesive tapes；
In figure of the present invention：1- glue frames, 2- black and white glue, the upper bright enhancement films of 3-, bright enhancement film under 4-, 5- light guide plates, 6- reflectance coatings,
7- lattice point structures, 8-V-CUT slot structures, 9- double faced adhesive tapes, 10- composite bright enhancement films, 11- backlights FPC, 12-LED, 13- polyester film
Substrate, the prismatic acrylic resins of 14-, 15- adhesive phases.
Embodiment
Below in conjunction with the accompanying drawings, and the present invention is described further in conjunction with the embodiments.
Embodiment 1：
A kind of mobile phone backlight module, including glue frame 1 and the backlight membrane material that is arranged in glue frame 1, the backlight membrane material bag
The black and white glue 2 from top to bottom to fit together successively, upper bright enhancement film 3, lower bright enhancement film 4, light guide plate 5 and reflectance coating 6 are included, it is described to lead
The upper surface of tabula rasa 5 sets lattice point structure 7, and lower surface sets V-CUT slot structures 8.
Mobile phone backlight module of the present invention sets lattice point structure 7 in the upper surface of light guide plate 5, can make the upper surface shape of light guide plate 5
Into obvious granular sensation, play good scattering process and make uniform light, so as to save one layer of lower diffusion barrier；In light guide plate
5 lower surface sets V-CUT slot structures 8, and V-CUT slot structures 8 are sawtooth or semicircular structure, and light can be made to produce refraction and complete
Reflection, make the brightness of light guide plate 5 increase so as to make light more flock together；Therefore the processing of the upper and lower surface of light guide plate 5
So that the brightness of light needed for backlight module and the uniformity can be guaranteed, and one layer of lower diffusion barrier is eliminated, so that
The integral thickness of backlight module is thinned, process is simplified, efficiency and yield are improved.
Preferably, the upper bright enhancement film 3 and lower bright enhancement film 4 are composite bright enhancement film 10, the knot of the composite bright enhancement film 10
Structure is as shown in Fig. 4, and its upper and lower bright enhancement film 3,4 is by mylar substrate 13 and the prismatic acrylic acid tree being formed thereon
Fat 14 is formed, and the angle of prismatic acrylic resin 14 of the bright enhancement film 3,4 up and down is 90 degree, and up and down bright enhancement film 3,4 it
Between be bonded together by adhesive phase 15, the thickness of composite bright enhancement film finished product can be done to only 0.1mm at present, compared to existing
Two upper bright enhancement films 3 being separated from each other and lower bright enhancement film 4 thickness sum it is much thinner.The setting uses composite bright enhancement film 10
Substitute the existing upper bright enhancement film 3 being separated from each other and lower bright enhancement film 4, it is clear that thickness is thinner, and saves a procedure, efficiency
It is also higher with yield.
Preferably, the mist degree of the upper surface of composite bright enhancement film 10 is 70%-80%.The setting is by improving compound increasing
The mist degree of the upper surface of light film 10 makes light more uniform, so as to substitute the effect of upper diffusion barrier well, saves diffusion barrier
Integral thickness is further thinned afterwards, and process further simplifies.
Preferably, model ASOC4-LS-82 (24) HH of the composite bright enhancement film 10.The composite bright enhancement film of the model
10 can meet above-mentioned parameter demand well.
Preferably, the mist degree of the upper surface of light guide plate 5 is 30%-50%.The setting can further make light more
Uniformly, the effect of lower diffusion barrier is preferably substituted so as to be combined with lattice point structure 7.
Embodiment 2
A kind of manufacture method of mobile phone backlight module, it comprises the following steps：
(1) light guide plate 5 for being molded by upper surface using having meshed injection mold and carrying lattice point structure 7；
(2) V-CUT slot structures 8 are milled out in the lower surface of light guide plate 5 using V-arrangement cutting die；
(3) upper surface of light guide plate 5 is moved upwards through into buckle structure in glue frame 1；
(4) composite bright enhancement film 10 is installed on light guide plate 5, and black and white glue 2 is pasted so that multiple on composite bright enhancement film 10
Bright enhancement film 10 is closed to be fixed in glue frame 1.
The manufacture method of mobile phone backlight module of the present invention sets lattice point structure 7 that light can be made equal in the upper surface of light guide plate 5
Even, so as to save one layer of lower diffusion barrier, thickness is thinned；Using composite bright enhancement film 10 substitute it is existing be separated from each other on add lustre to
Film 3 and lower bright enhancement film 4, it is clear that thickness is thinner；In addition V-CUT slot structures 8 are set to make light guide plate in the lower surface of light guide plate 5
5 brightness increase；Therefore the processing of the upper and lower surface of light guide plate 5 causes the brightness of the light needed for backlight module and the uniformity to obtain
To guarantee, and one layer of lower diffusion barrier is eliminated, and make use of the composite bright enhancement film 10 of thinner thickness so that the entirety of backlight module
Thickness is thinned, process is simplified, efficiency and yield are improved.
Preferably, the step of patch reflectance coating 6 in glue frame 1 are additionally included in after the step (3) and before step (4),
Or the step of patch reflectance coating 6 in glue frame 1 are additionally included in before the step (3) and after step (2), the reflectance coating 6 can
It is pasted onto by double faced adhesive tape 9 in glue frame 1.The step of pasting reflectance coating 6 can flexibly select according to actual conditions.
Preferably, the step of also including patch backlight FPC11 after the step (3) and before step (4), the backlight
FPC11 is integrated with LED12, when paste reflectance coating 6 also after the step (3) when, first paste reflectance coating 6, then paste backlight FPC11.This sets
Putting can make that backlight FPC11's is easier for installation.
Preferably, also include the haze treatment to the upper surface of light guide plate 5, the upper table of light guide plate 5 in the step (1)
The mist degree in face is 30%-50%.The setting can further make light more uniform, so as to be combined preferably with lattice point structure 7
The effect of the lower diffusion barrier of substitution.
Preferably, before composite bright enhancement film 10 is installed on light guide plate 5 in the step (4), in addition to compound increasing
The haze treatment of the upper surface of light film 10, the mist degree of the upper surface of composite bright enhancement film 10 is 70%-80%.The setting is by carrying
The mist degree of the high upper surface of composite bright enhancement film 10 makes light more uniform, so as to substitute the effect of upper diffusion barrier well, saves
Integral thickness is further thinned after upper diffusion barrier, and process further simplifies.
Claims (10)
1. a kind of mobile phone backlight module, including glue frame (1) and the backlight membrane material that is arranged in glue frame (1), it is characterised in that：
Black and white glue (2) that the backlight membrane material includes from top to bottom fitting together successively, upper bright enhancement film (3), lower bright enhancement film (4), lead
Tabula rasa (5) and reflectance coating (6), the upper surface of the light guide plate (5) set lattice point structure (7), and lower surface sets V-CUT slot structures
(8)。
A kind of 2. mobile phone backlight module according to claim 1, it is characterised in that：The upper bright enhancement film (3) and under add lustre to
Film (4) is composite bright enhancement film (10).
A kind of 3. mobile phone backlight module according to claim 2, it is characterised in that：Composite bright enhancement film (10) upper surface
Mist degree be 70%-80%.
A kind of 4. mobile phone backlight module according to claim 2, it is characterised in that：The model of the composite bright enhancement film (10)
For ASOC4-LS-82 (24) HH.
A kind of 5. mobile phone backlight module according to claim 1, it is characterised in that：The mist of light guide plate (5) upper surface
Spend for 30%-50%.
A kind of 6. manufacture method of mobile phone backlight module for described in manufacturing claims 2, it is characterised in that：It includes following
Step：
(1) light guide plate (5) for being molded by upper surface using having meshed injection mold and carrying lattice point structure (7)；
(2) V-CUT slot structures (8) are milled out in light guide plate (5) lower surface using V-arrangement cutting die；
(3) light guide plate (5) upper surface is moved upwards through into buckle structure in glue frame (1)；
(4) on light guide plate (5) install composite bright enhancement film (10), and on composite bright enhancement film (10) paste black and white glue (2) with
Composite bright enhancement film (10) is set to be fixed in glue frame (1).
A kind of 7. manufacture method of mobile phone backlight module according to claim 6, it is characterised in that：The step (3) it
The step of being additionally included in patch reflectance coating (6) in glue frame (1) afterwards and before step (4), or before the step (3) and step
(2) the step of patch reflectance coating (6) in glue frame (1) are additionally included in after.
A kind of 8. manufacture method of mobile phone backlight module according to claim 6, it is characterised in that：The step (3) it
The step of also including patch backlight FPC (11) afterwards and before step (4), the backlight FPC (11) is integrated with LED (12).
A kind of 9. manufacture method of mobile phone backlight module according to claim 6, it is characterised in that：In the step (1)
Also include the haze treatment to light guide plate (5) upper surface, the mist degree of light guide plate (5) upper surface is 30%-50%.
A kind of 10. manufacture method of mobile phone backlight module according to claim 6, it is characterised in that：In the step (4)
Before composite bright enhancement film (10) is installed on light guide plate (5), in addition to the haze treatment to composite bright enhancement film (10) upper surface, institute
The mist degree for stating composite bright enhancement film (10) upper surface is 70%-80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710984163.1A CN107728250A (en) | 2017-10-20 | 2017-10-20 | A kind of mobile phone backlight module and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710984163.1A CN107728250A (en) | 2017-10-20 | 2017-10-20 | A kind of mobile phone backlight module and its manufacture method |
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| Publication Number | Publication Date |
|---|---|
| CN107728250A true CN107728250A (en) | 2018-02-23 |
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ID=61213051
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710984163.1A Pending CN107728250A (en) | 2017-10-20 | 2017-10-20 | A kind of mobile phone backlight module and its manufacture method |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308947A (en) * | 2022-08-15 | 2022-11-08 | 深圳市南极光电子科技股份有限公司 | Backlight module applied to Mini LED and assembling method thereof |
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| CN210323447U (en) * | 2017-10-20 | 2020-04-14 | 江西合力泰科技有限公司 | Mobile phone backlight module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308947A (en) * | 2022-08-15 | 2022-11-08 | 深圳市南极光电子科技股份有限公司 | Backlight module applied to Mini LED and assembling method thereof |
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Application publication date: 20180223 |