CN109751532A - Backlight module and optical diaphragm localization method - Google Patents
Backlight module and optical diaphragm localization method Download PDFInfo
- Publication number
- CN109751532A CN109751532A CN201711062617.6A CN201711062617A CN109751532A CN 109751532 A CN109751532 A CN 109751532A CN 201711062617 A CN201711062617 A CN 201711062617A CN 109751532 A CN109751532 A CN 109751532A
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- China
- Prior art keywords
- optical diaphragm
- adhesive
- glue frame
- light guide
- guide plate
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Abstract
The present invention discloses a kind of backlight module, includes a backboard, a glue frame, a light guide plate and an at least optical diaphragm.Two opposite sides of glue frame be respectively provided with affix at least the one of backboard have glue section and do not affix to backboard an at least adhesive-free area section.The two relative side of light guide plate forms a gap, and the space that optical diaphragm is set to light guide plate and glue frame is defined with adhesive-free area section respectively.When two opposite side stress of glue frame, the side of each adhesive-free area section contact light guide plate of glue frame simultaneously limits optical diaphragm.
Description
Technical field
The present invention is about a kind of backlight module and optical diaphragm localization method.
Background technique
In current backlight module design, when positioning optical diaphragm, diaphragm expansion and assembling tolerance issues need to be considered,
Therefore preset clearance is needed between the left and right side of diaphragm and glue frame, and diaphragm need to assemble between two parties and just be avoided that the limit assembles bring bright line
The problems such as.Conventional designs carry out diaphragm positioning usually using a jig, but be limited to accumulated tolerance influence and at present need to the greatest extent can
The design requirement of preset clearance can be reduced, it is difficult to the sufficient space of setting position-limiting fixture be provided, cause optical diaphragm quick
Ground is accurately positioned.
" background technique " paragraph is used only to help to understand the content of present invention, therefore disclosed in " background technique " paragraph
Content may include some known techniques without constituting road known to those skilled in the art.Disclosed in " background technique " paragraph
Content, do not represent the content or the one or more embodiment problems to be solved of the present invention, before the present patent application
It is readily known to those persons skilled in the art or recognizes.
Summary of the invention
The present invention provides a kind of backlight module design that can fast and accurately position optical diaphragm.
Other objects and advantages of the present invention can be further understood from technical characteristic disclosed in this invention.
It is to reach one of above-mentioned or part or all of purpose or other purposes, a kind of backlight mould of one embodiment of the invention
Block includes a backboard, a glue frame, a light guide plate and an at least optical diaphragm.Glue frame is fixed on backboard, and two opposite sides of glue frame
Be respectively provided with affix at least the one of backboard have glue section and do not affix to backboard an at least adhesive-free area section.Light guide plate is set to
On the inside of glue frame, the two relative side of light guide plate forms a gap with adhesive-free area section respectively, and optical diaphragm be set to light guide plate with
The space that glue frame is defined.When two opposite side stress of glue frame, each adhesive-free area section of glue frame contacts side and the limit of light guide plate
Optical diaphragm.
Another embodiment of the present invention provides a kind of optical diaphragm localization methods.Two opposite sides of a glue frame are affixed to one first
Backboard, and retain adhesive-free area section respectively in two opposite sides, and will at least an optical diaphragm be stacked and placed on a light guide plate.Then via
Each adhesive-free area section exerts a force to two opposite sides of glue frame, so that each adhesive-free area section of glue frame is pushed optical diaphragm, so that optical diaphragm
Move to a predeterminated position.Furthermore the optical diaphragm for having been located in predeterminated position can be pasted to the incident side for being fixed on light guide plate.
The embodiment of the present invention at least has the advantages that following one of.By the design of above-mentioned each embodiment, it is only necessary to
Retain adhesive-free area section respectively in two opposite sides of glue frame, optical diaphragm can be allowed to move to a default position in the way of symmetrically exerting a force
Set, be not required to using additional jig can completion optical diaphragm fast and accurately in the positioning on light guide plate, reach simplified life
It produces process and reduces the purpose of working hour and cost.
Other objects and advantages of the present invention can be further understood from technical characteristic disclosed in this invention.
For the above-mentioned and other purposes of the present invention, feature and advantage can be clearer and more comprehensible, special embodiment below simultaneously cooperates institute's attached drawing,
It is described in detail below.
Detailed description of the invention
Fig. 1 is the simplified schematic diagram of the backlight module of one embodiment of the invention.
Fig. 2A is the diagrammatic cross-section of the A-A ' wire cutting along Fig. 1, and Fig. 2 B is the section signal of the B-B ' wire cutting along Fig. 1
Figure.
Fig. 3 is the flow chart of the optical diaphragm localization method of one embodiment of the invention.
Specific embodiment
In relation to addressing other technologies content, feature and effect before the present invention, the embodiment of attached drawing is referred in following cooperation
Detailed description in, can clearly present.The direction term being previously mentioned in following embodiment, such as: it is upper and lower, left and right, preceding
Or it is rear etc., it is only the direction with reference to attached drawing.Therefore, the direction term used is intended to be illustrative and not intended to limit the present invention.
Fig. 1 is the simplified schematic diagram of the backlight module of one embodiment of the invention.Fig. 2A is the section of the A-A ' wire cutting along Fig. 1
Schematic diagram, Fig. 2 B are the diagrammatic cross-section of the B-B ' wire cutting along Fig. 1.It please also refer to Fig. 1, Fig. 2A and Fig. 2 B, backlight module
10 include a backboard 12, a glue frame 14, a light guide plate 18 and an at least optical diaphragm 22.Glue frame 14 is set on backboard 12, is led
Tabula rasa 18 is set to 14 inside of glue frame, and has an at least incident side S, and optical diaphragm 22 is stacked and placed on light guide plate 18 and is located at and leads
The space that tabula rasa 18 and glue frame 14 are defined.Glue frame 14 has one first opposite side P and second side a Q, the first side P and the
Two side Q are respectively provided at least one first section 14a and at least one second section 14b.In this present embodiment, the first side of glue frame 14
P and second side Q is respectively provided with two a first section 14a and second section 14b, and the second section 14b is located at two first
Between section 14a.First section 14a system be pasted on backboard 12 by colloid 24 have glue section, and the second section 14b system
For the adhesive-free area section for not being pasted on backboard 12.As shown in Figure 2 A, in having in the first section of glue 14a, glue frame 14 can be by colloid
24 are pasted on backboard 12, and have a spacing between glue frame 14 and the side 18a of light guide plate.Fig. 2 B shows the nothing of 14 two sides of glue frame
Situation of glue section when stress, as shown in Figure 2 B, when two opposite side stress of glue frame 14, such as using a pushing tow structure
(not shown) is pushed against the second section 14b of 14 two sides of glue frame by the first side P and second side Q towards the center of glue frame 14 respectively, because each
A the second section of no glue 14b is not pasted on backboard 12, therefore can push optical diaphragm 22 that optical diaphragm 22 is made to move to light guide plate 18
On a predeterminated position (such as central location).It should be noted that no glue the second section 14b pushes optical diaphragm 22 to predeterminated position
Mode does not limit.In this present embodiment, have between the second section 14b meeting and light guide plate side 18a of glue frame 14 before stress
Have a spacing, the downside 141 of two the second section 14b in left and right of glue frame 14 when Yu Shouli, can it is mobile as shown in Figure 2 B until
It contacts the side 18a of light guide plate and stops, the optical diaphragm 22 for enabling the upper side 142 by the second section 14b to push moves
One preset distance is to required position.In other embodiments, such as it can provide other mobile position limiting structures of adhesive-free area section, or
The pushing and pressing degree that person controls pushing tow structure (not shown) keeps the mobile preset distance of optical diaphragm 22 equal to modes such as required positions
It can.The stickup of optical diaphragm 22 is fixed on entering for light guide plate by reusable colloid 26 after optical diaphragm 22 moves to a predeterminated position
Light side S.
In an embodiment, be located at two opposite sides of glue frame 14 two can be symmetric without the second section of glue 14b.In
In one embodiment, colloid 24,26 may be, for example, double-sided adhesive but not limit.Furthermore in an embodiment, the second section 14b can be small
In the first section 14a, but also visual actual needs variation, it is only necessary to which the effect that can obtain promotion optical diaphragm 22 to required position is
It can.
In conclusion the embodiment of the present invention at least have the advantages that it is following one of, by above-mentioned each embodiment
Design, it is only necessary to retain adhesive-free area section respectively in two opposite sides of glue frame 14, can allow optical diaphragm in the way of symmetrically exerting a force
22 move to a predeterminated position, be not required to using additional jig can completion optical diaphragm 22 fast and accurately on light guide plate
Positioning achievees the purpose that simplified production procedure and reduces working hour and cost.
Another embodiment of the present invention provides a kind of optical diaphragm localization methods.As shown in figure 3, in this optical diaphragm positioning side
In method, two opposite sides of a glue frame are affixed into a backboard first, and retain adhesive-free area section (step S20) respectively in two opposite sides,
And it will at least an optical diaphragm be stacked and placed on a light guide plate (step S30).Then via each adhesive-free area section to two pairs of glue frame
Side force makes each adhesive-free area section of glue frame push optical diaphragm, so that optical diaphragm moves to a predeterminated position (step S40).
Furthermore the optical diaphragm for having been located in predeterminated position can be pasted to the incident side (step S50) for being fixed on light guide plate.Implement in one
In example, adhesive-free area section can contact the side of light guide plate when stress.
The above is only a preferred embodiment of the present invention, and the range of implementation of the invention cannot be limited with this, i.e., all
It is the simple equivalent changes and modifications made according to claims of the present invention and description, all still belongs to the invention patent
In the range covered.In addition any embodiment of the invention or claim be not necessary to reach presently disclosed whole purpose or
Advantage or feature.In addition, the terms such as " first " that refers in this specification or claims, " second " are only to name element
Title or the different embodiments of difference or range, and be not used to the quantitative upper limit of restriction element or lower limit.
Reference signs list
10 backlight modules
12 backboards
14 glue frames
The first section of 14a
The second section of 14b
141 downsides
142 upper sides
18 light guide plates
The side 18a
22 optical diaphragms
24,26 colloid
S10-S60 method and step
The first side P
Q second side
S incident side.
Claims (9)
1. a kind of backlight module, which is characterized in that include backboard, glue frame, light guide plate and an at least optical diaphragm,
The glue frame is fixed on the backboard, and two opposite sides of the glue frame are respectively provided with and affix at least the one of the backboard and have
Glue section and at least adhesive-free area section for not affixing to the backboard;
The light guide plate is set on the inside of the glue frame, and the two relative side of the light guide plate respectively with the adhesive-free area section shape
At a gap;
The space that an at least optical diaphragm is set to the light guide plate and the glue frame is defined;
Wherein when the two opposite sides stress of the glue frame, each adhesive-free area section of the glue frame contacts the light guide plate
The side simultaneously limits the optical diaphragm.
2. backlight module as described in claim 1, which is characterized in that every side in two opposite side of the glue frame includes
Two have glue section and an adhesive-free area section, and adhesive-free area section is located at described two and has between glue section.
3. backlight module as described in claim 1, which is characterized in that the adhesive-free area section has glue section less than described.
4. backlight module as described in claim 1, which is characterized in that be located at two adhesive-free areas of two opposite sides of the glue frame
Section is symmetric.
5. backlight module as described in claim 1, the backlight module also includes:
Colloid, the optical diaphragm to be pasted to the incident side for being fixed on the light guide plate.
6. backlight module as claimed in claim 5, which is characterized in that the colloid is double-sided adhesive.
7. a kind of optical diaphragm localization method, characterized by comprising:
Two opposite sides of one glue frame are affixed into a backboard, and retain adhesive-free area section respectively in two opposite side;
An at least optical diaphragm is stacked and placed on a light guide plate;And
It exerts a force via each adhesive-free area section to two opposite side of the glue frame, each adhesive-free area section is made to push the optics
Diaphragm is so that the optical diaphragm moves to a predeterminated position.
8. optical diaphragm localization method as claimed in claim 7, which is characterized in that the optical diaphragm localization method also wraps
Contain:
The optical diaphragm for being located at the predeterminated position is pasted to the incident side for being fixed on the light guide plate.
9. optical diaphragm localization method as claimed in claim 7, which is characterized in that each adhesive-free area section contacts when stress
The one side of the light guide plate.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711062617.6A CN109751532A (en) | 2017-11-02 | 2017-11-02 | Backlight module and optical diaphragm localization method |
TW106139442A TWI641879B (en) | 2017-11-02 | 2017-11-15 | Backlight module and optical film positioning method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711062617.6A CN109751532A (en) | 2017-11-02 | 2017-11-02 | Backlight module and optical diaphragm localization method |
Publications (1)
Publication Number | Publication Date |
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CN109751532A true CN109751532A (en) | 2019-05-14 |
Family
ID=65034135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201711062617.6A Pending CN109751532A (en) | 2017-11-02 | 2017-11-02 | Backlight module and optical diaphragm localization method |
Country Status (2)
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CN (1) | CN109751532A (en) |
TW (1) | TWI641879B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020237718A1 (en) * | 2019-05-24 | 2020-12-03 | 武汉华星光电技术有限公司 | Backlight module and display device |
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CN105044938B (en) * | 2015-06-14 | 2018-02-06 | 深圳市德仓科技有限公司 | A kind of backlight module membrane material assembled fixture and its assemble method |
CN105093635A (en) * | 2015-09-17 | 2015-11-25 | 京东方科技集团股份有限公司 | Rubber frame, backlight source and display device and assembling method thereof |
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US5040456A (en) * | 1990-11-09 | 1991-08-20 | U.S. Graphics Ltd. | Screen printing frame |
US6163350A (en) * | 1996-08-28 | 2000-12-19 | Kabushiki Kaisha Toshiba | Filter device and backlight device, each filter sheet having only one holding portion which is bonded to a frame member |
CN101344661A (en) * | 2007-07-13 | 2009-01-14 | 群康科技(深圳)有限公司 | LCD device and its assembly method |
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Publication number | Publication date |
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TW201918735A (en) | 2019-05-16 |
TWI641879B (en) | 2018-11-21 |
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Application publication date: 20190514 |