CN106033132B - Optical diaphragm and backlight module - Google Patents
Optical diaphragm and backlight module Download PDFInfo
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- CN106033132B CN106033132B CN201510126588.XA CN201510126588A CN106033132B CN 106033132 B CN106033132 B CN 106033132B CN 201510126588 A CN201510126588 A CN 201510126588A CN 106033132 B CN106033132 B CN 106033132B
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- light guide
- extension
- optical diaphragm
- guide plate
- protrusion
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Abstract
The invention discloses a kind of optical diaphragm and backlight modules.The backlight module includes shell, light guide plate and at least one optical diaphragm.Shell has connected bottom plate and side wall.Light guide plate is carried on bottom plate.Gap is formed between the side and side wall of light guide plate.Optical diaphragm includes sheet body and protrusion.Sheet body is carried on light guide plate.The edge of protrusion connection sheet ontology, and bent with respect to sheet body and be inserted into gap.Optical diaphragm according to the present invention, can be improved the stationarity of optical diaphragm, and prevent optical diaphragm opposite light guide plate under rollover test from the problems such as escape shifts occurs.
Description
Technical field
The present invention relates to a kind of optical diaphragm and backlight modules.
Background technique
As electronic industry is increasingly flourishing, liquid crystal display has become mainstream currently on the market, and applies in various letters
It ceases on processing unit (for example, smart phone, tablet computer, laptop, navigation device etc.).Due to showing for liquid crystal display
Show that panel itself can not shine, so the backlight module as offer light source must be provided in the lower section of display panel, and then makes
Liquid crystal display reaches the function of display.
In view of the market demand, the design at liquid crystal display edge approaches narrow frame design.And in liquid crystal display toward greatly
In the case where size and wide viewing angle development, the design of material is just it must be considered that large scale and narrow frame liquid crystal in backlight module
Show the assemblability assessment of module.By taking the optical diaphragm in assembling backlight module as an example, it will usually in the side of the shell of backlight module
It is provided with location structure (e.g. groove) on wall, is engaged and is positioned to provide optical diaphragm, to avoid optical diaphragm
It is subjected to displacement.
However, narrow frame design will be so that can be used to fix inside backlight module under increasingly harsh rollover test
The space of optical diaphragm also has to reduce, therefore bad influence can be generated to the stationarity of optical diaphragm, and lead to optics
Diaphragm occurs the problems such as escape displacement and can not pass through rollover test.
So propose that one kind can reach good stationarity in the backlight module of the limited narrow frame design in inner space,
It and can be one of the project that current industry is badly in need of that investment development resources are studied by the optical diaphragm of rollover test.
Summary of the invention
The purpose of the present invention is to provide a kind of optical diaphragm and backlight modules, so that the above-mentioned of the prior art be overcome to lack
It falls into.
The present invention provides a kind of optical diaphragm, is set on light guide plate.Optical diaphragm includes sheet body and protrusion
Portion.Sheet body is carried on light guide plate.The edge of protrusion connection sheet ontology.At least part of protrusion be bending and
Except the side of light guide plate.
In an embodiment of the invention, above-mentioned light guide plate includes plate body and lug.Lug connects plate body
Edge.Sheet body is carried on plate body.Protrusion includes the first extension and the second extension.First extension connection sheet
The edge of material ontology, and be carried on lug.Second extension connects the first extension, and bends and support with respect to the first extension
Side by lug far from plate body.Roulette is formed at the intersection between the first extension and the second extension.
In an embodiment of the invention, above-mentioned protrusion is abutment side surface with respect to sheet body bending, and
And roulette is formed at the intersection between sheet body and protrusion.
The present invention separately provides a kind of backlight module, and it includes shell, light guide plate and at least one optical diaphragms.Shell tool
There are connected bottom plate and side wall, wherein side wall has groove.Light guide plate is carried on bottom plate, and includes plate body and lug.
Lug connects the edge of plate body, and is sticked in groove, and gap is wherein formed between lug and groove.Optical diaphragm includes sheet material
Ontology, the first extension and the second extension.Sheet body is carried on plate body.The side of first extension connection sheet ontology
Edge, and be carried on lug.Second extension connects the first extension, and bends with respect to the first extension and be inserted into gap.
In an embodiment of the invention, the quantity of at least one above-mentioned optical diaphragm is multiple.Optical diaphragm
It is mutually laminated on light guide plate, and the second extension is the mutual dislocation in gap.
In an embodiment of the invention, the second above-mentioned extension is the side against lug far from plate body.
In an embodiment of the invention, roulette is formed at the friendship between the first extension and the second extension
At boundary.
The present invention separately provides a kind of backlight module, and it includes shell, light guide plate and at least one optical diaphragms.Shell tool
There are connected bottom plate and side wall.Light guide plate is carried on bottom plate, wherein forms gap between the side and side wall of light guide plate.Light
Learning diaphragm includes sheet body and protrusion.Sheet body is carried on light guide plate.The edge of protrusion connection sheet ontology,
And it is bent with respect to sheet body and is inserted into gap.
In an embodiment of the invention, the quantity of at least one above-mentioned optical diaphragm is multiple.Optical diaphragm
It is mutually laminated on light guide plate, and protrusion is the mutual dislocation in gap.
In an embodiment of the invention, above-mentioned roulette is formed at the friendship between sheet body and protrusion
At boundary.
In conclusion the present invention mainly improves the optical diaphragm in backlight module.Optical diaphragm of the invention
Protrusion be at least partly to be bent with respect to sheet body and be resisted against the side of light guide plate, and be inserted into the side wall of shell and guide-lighting
Gap between plate, therefore the stationarity of optical diaphragm can be improved, and prevent optical diaphragm relatively guide-lighting under rollover test
The problems such as escape displacement, occurs for plate.In addition, the present invention also makes the protrusion of optical diaphragm mutual dislocation in gap, therefore backlight
Module can reserve the lesser gap of width between the side wall and light guide plate of shell, and being more advantageous to makes backlight module realize narrow side
Frame design.Furthermore it, can't be opposite to protrusion since the width in above-mentioned gap only needs the thickness slightly larger than optical diaphragm
It causes to limit in the development length of sheet body, therefore the required precision when manufacturing protrusion on optical diaphragm is lower, favorably
In the product yield for improving optical diaphragm.
Detailed description of the invention
Figure 1A is the three-dimensional combination figure according to the backlight module of first embodiment of the invention；
Figure 1B is that the exploded perspective figure of the backlight module in Figure 1A, wherein optical diaphragm and light guide plate overlap；
Fig. 1 C is the exploded perspective figure of the light guide plate and optical diaphragm in Figure 1A；
Fig. 2A is the three-dimensional combination figure according to the backlight module of second embodiment of the invention；
Fig. 2 B is that the exploded perspective figure of the backlight module in Fig. 2A, wherein optical diaphragm and light guide plate overlap；
Fig. 2 C is the exploded perspective figure of the light guide plate and optical diaphragm in Fig. 2A.
Specific embodiment
Multiple embodiments of the invention will be disclosed with attached drawing below, as clearly stated, many concrete details will
It is explained in the following description.It should be appreciated, however, that these concrete details are not applied to limit the present invention.That is,
In some embodiments of the present invention, these concrete details are non-essential.In addition, for the sake of simplifying attached drawing, it is some known
Usual structure will be painted in a manner of simply illustrating in the accompanying drawings with element.
Please refer to Figure 1A, Figure 1B and Fig. 1 C.Figure 1A is according to the vertical of the backlight module 1 of first embodiment of the invention
Body constitutional diagram.Figure 1B is that the exploded perspective figure of the backlight module 1 in Figure 1A, wherein optical diaphragm 14 and light guide plate 12 overlap.Figure
1C is the exploded perspective figure of the light guide plate 12 and optical diaphragm 14 in Figure 1A.
As shown in Figure 1A to Fig. 1 C, in the present embodiment, backlight module 1 includes shell 10, light guide plate 12 and three
Optical diaphragm 14 (only indicates for one) in diagram.Shell 10 has connected bottom plate 100 and side wall 102.Side wall 102 has
Fluted 102a is to be recessed to be formed by the inside of side wall 102.In practical applications, shell 10 can be by frame and glue frame institute group
It closes.Light guide plate 12 is carried on bottom plate 100, and includes plate body 120 and lug 122.Lug 122 connects plate body 120
Edge, and be sticked in groove 102a.It whereby, can be right in addition to side wall 102 can be passed through when light guide plate 12 assembles in the housing 10
The plate body 120 of light guide plate 12 can also further be prevented by the groove 102a being mutually clamped with lug 122 except tentatively limit
Only light guide plate 12 is with respect to 10 horizontal deflection of shell.
As shown in Figure 1A, when light guide plate 12 assembles in the housing 10 and lug 122 is sticked in groove 102a, lug 122
It will form clearance G between side and groove 102a far from plate body 120.Each optical diaphragm 14 all comprising sheet body 140 with
And protrusion 142.Each sheet body 140 is carried on plate body 120, and is overlapped each other.Protrusion 142 includes the first extension
142a and the second extension 142b.
For each optical diaphragm 14, the edge of the first extension 142a connection sheet ontology 140 is carried on lug
On 122, and overlapped each other with the first extension 142a of other optical diaphragms 14.Second extension 142b the first extension of connection
142a, and opposite first extension 142a is bent.Specifically, sheet body 140 and the second extension 142b is to be separately connected
In the two opposite sides of the first extension 142a.(such as Figure 1B institute under the situation that 14 phase of optical diaphragm is laminated on light guide plate 12
Show), the second extension 142b is the side against lug 122 far from plate body 120.Therefore, when 1 complete combination of backlight module,
Second extension 142b can be inserted into clearance G.
It follows that the protrusion 142 of each optical diaphragm 14 in present embodiment is to make the second extension 142b phase
First extension 142a is bent and is located at the side 120a of light guide plate 12, and is inserted into the groove 102a and light guide plate of side wall 102
Clearance G between 12 lug 122.Second extension 142b is limited by the clearance G between groove 102a and lug 122,
The stationarity of optical diaphragm 14 can be improved, and prevent the opposite light guide plate 12 under rollover test of optical diaphragm 14 from escape occurs
The problems such as displacement.
In the present embodiment, under the situation that 14 phase of optical diaphragm is laminated on light guide plate 12 (as shown in Figure 1B), the
Two extension 142b are in side mutual dislocation of the lug 122 far from plate body 120.Therefore, when 1 complete combination of backlight module, the
Two extension 142b also can in clearance G mutual dislocation.By setting the second extension 142b mutual dislocation in clearance G
Meter, backlight module 1 can reserve the lesser gap of width between the groove 102a of side wall 102 and the lug 122 of light guide plate 12
G, being more advantageous to makes backlight module 1 realize narrow frame design.Furthermore since the width of above-mentioned clearance G is only needed slightly larger than any light
The thickness for learning diaphragm 14, can't cause to limit, therefore to protrusion 142 relative to the development length of sheet body 140
Required precision when manufacturing protrusion 142 on optical diaphragm 14 is lower, is conducive to the product yield for improving optical diaphragm 14.
In the present embodiment, for each optical diaphragm 14, roulette 144 be formed in the first extension 142a with
Intersection between second extension 142b.By the formation of roulette 144, the second extension 142b may make to be easy to opposite the
One extension 142a bends and is not easy to spring back, thus be conducive to for be inserted into the second extension 142b groove 102a and lug 122 it
Between clearance G program.
In the present embodiment, the quantity for the optical diaphragm 14 that backlight module 1 is included be three, but the present invention not with
This is limited, and can flexibly be increased and decreased according to practical optical demands.
In embodiments, the groove 102a of side wall 102, light guide plate 12 lug 122 and each optical diaphragm 14 it is convex
The shape in portion 142, position are all corresponded to each other with quantity out, are not limited with schematic diagram depicted in Figure 1A to Fig. 1 C, can basis
Actual demand and flexibly adjust.
Fig. 2A is the three-dimensional combination figure of the backlight module 3 of second embodiment of the invention.Fig. 2 B is the backlight in Fig. 2A
The exploded perspective figure of module 3, wherein optical diaphragm 34 and light guide plate 32 overlap.Fig. 2 C is the light guide plate 32 and optical film in Fig. 2A
The exploded perspective figure of piece 34.
As shown in Fig. 2A to Fig. 2 C, in the present embodiment, backlight module 3 includes shell 30, light guide plate 32 and three
Optical diaphragm 34 (only indicates for one) in diagram.Shell 30 has connected bottom plate 300 and side wall 302.Actually answering
In, shell 30 can be formed as frame with combined by glue frame.Light guide plate 32 is carried on bottom plate 300.When light guide plate 32 is assembled in
When in shell 30, clearance G will form between the side 320 and side wall 302 of light guide plate 32.Each optical diaphragm 34 all includes sheet material
Ontology 340 and protrusion 342.Each sheet body 340 is carried on light guide plate 32, and is overlapped each other.Protrusion 342 connects
The edge of sheet body 340, and opposite sheet body 340 is bent.34 phase of optical diaphragm be laminated on the situation on light guide plate 32 it
Under (as shown in Figure 2 B), protrusion 342 is against the side of light guide plate 32 320.Therefore, convex when 3 complete combination of backlight module
Portion 342 can be inserted into clearance G out.
It follows that the protrusion 342 of each optical diaphragm 34 in present embodiment is that opposite sheet body 340 is bent
And it is located at the side 320 of light guide plate 32, and the clearance G being inserted between side wall 302 and the side 320 of light guide plate 32.Pass through side wall
Clearance G between 302 and the side 320 of light guide plate 32 limits protrusion 342, that is, the stationarity of optical diaphragm 34 can be improved,
And prevent the opposite light guide plate 32 under rollover test of optical diaphragm 34 from the problems such as escape shifts occurs.
In the present embodiment, convex under the situation that 34 phase of optical diaphragm is laminated on light guide plate 32 (as shown in Figure 2 B)
Portion 342 is in 320 mutual dislocation of the side of light guide plate 32 out.Therefore, when 3 complete combination of backlight module, protrusion 342 also can
The mutual dislocation in clearance G.By making the design of the mutual dislocation in clearance G of protrusion 342, backlight module 3 can be in side wall
The lesser clearance G of width is reserved between 302 and the side 320 of light guide plate 32, being more advantageous to makes backlight module 3 realize that narrow frame is set
Meter.Furthermore it, can't be to protrusion since the width of above-mentioned clearance G only needs the thickness slightly larger than any optical diaphragm 34
342 cause to limit relative to the development length of sheet body 340, therefore the essence when manufacturing protrusion 342 on optical diaphragm 34
Degree require it is lower, be conducive to improve optical diaphragm 34 product yield.
In the present embodiment, for each optical diaphragm 34, roulette 344 be formed at sheet body 340 with
Intersection between protrusion 342.By the formation of roulette 344, protrusion 342 may make to be easy to opposite sheet body 340
It bends and is not easy to spring back, therefore be conducive to the clearance G being inserted into protrusion 342 between side wall 302 and the side 320 of light guide plate 32
Program.
In the present embodiment, the quantity for the optical diaphragm 34 that backlight module 3 is included be three, but the present invention not with
This is limited, and can flexibly be increased and decreased according to practical optical demands.
In the present embodiment, the shape of the protrusion 342 of each optical diaphragm 34, position be not with Fig. 2A to Fig. 2 C institute
The schematic diagram being painted is limited, and can adjust according to actual needs and flexibly.
By above for the detailed description of specific embodiments of the present invention, it is apparent that the present invention is mainly to backlight
Optical diaphragm in module is improved.The protrusion of optical diaphragm of the invention be at least partly with respect to sheet body bending and
It is resisted against the side of light guide plate, and is inserted into the gap between the side wall of shell and light guide plate, therefore consolidating for optical diaphragm can be improved
It is qualitative, and prevent optical diaphragm opposite light guide plate under rollover test from the problems such as escape shifts occurs.In addition, the present invention also makes
The protrusion of optical diaphragm mutual dislocation in gap, therefore backlight module can be reserved between the side wall and light guide plate of shell
The lesser gap of width, being more advantageous to makes backlight module realize narrow frame design.Furthermore since the width in above-mentioned gap only needs to omit
Greater than the thickness of optical diaphragm, protrusion can't be caused to limit relative to the development length of sheet body, therefore
Required precision when manufacturing protrusion on optical diaphragm is lower, is conducive to the product yield for improving optical diaphragm.
Although the present invention is disclosed as above with embodiment, so it is not intended to limit the present invention, any art technology
Personnel can make a variety of different selections and modification, therefore protection model of the invention without departing from the spirit and scope of the present invention
It encloses and is limited by claims and its equivalents.
Claims (6)
1. a kind of optical diaphragm, which is characterized in that be set on light guide plate, the optical diaphragm includes:
Sheet body is carried on the light guide plate；And
Protrusion connects the edge of the sheet body, wherein at least part of the protrusion is to bend and be located at institute
Except the side for stating light guide plate, wherein the light guide plate includes plate body and lug, the lug connects the edge of the plate body,
The sheet body is carried on the plate body, and the protrusion includes:
First extension, connects the edge of the sheet body, and is carried on the lug；And
Second extension, connects first extension, and the relatively described first extension bending and it is remote against the lug
Side from the plate body, wherein the intersection between first extension and second extension forms roulette.
2. a kind of optical diaphragm, which is characterized in that be set on light guide plate, the optical diaphragm includes:
Sheet body is carried on the light guide plate；And
Protrusion connects the edge of the sheet body, wherein at least part of the protrusion is to bend and be located at institute
Except the side for stating light guide plate, wherein protrusion sheet body bending relatively and against the side, and in institute
The intersection stated between sheet body and the protrusion forms roulette.
3. a kind of backlight module, which is characterized in that the backlight module includes:
Shell has connected bottom plate and side wall, wherein the side wall has groove；
Light guide plate is carried on the bottom plate, and includes plate body and lug, and the lug connects the edge of the plate body,
And be sticked in the groove, wherein forming gap between the lug and the groove；And
At least one optical diaphragm, it includes: sheet body is carried on the plate body；First extension, connection described in
The edge of sheet body, and be carried on the lug；And second extension, first extension is connected, and opposite
First extension bends and is inserted into the gap.
4. backlight module according to claim 3, which is characterized in that the quantity of at least one optical diaphragm is more
A, the optical diaphragm is mutually laminated on the light guide plate, and second extension mutual dislocation in the gap.
5. backlight module according to claim 3, which is characterized in that second extension is against the lug far from institute
State the side of plate body.
6. backlight module according to claim 3, which is characterized in that in first extension and second extension
Between intersection formed roulette.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510126588.XA CN106033132B (en) | 2015-03-20 | 2015-03-20 | Optical diaphragm and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510126588.XA CN106033132B (en) | 2015-03-20 | 2015-03-20 | Optical diaphragm and backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106033132A CN106033132A (en) | 2016-10-19 |
| CN106033132B true CN106033132B (en) | 2019-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510126588.XA Active CN106033132B (en) | 2015-03-20 | 2015-03-20 | Optical diaphragm and backlight module |
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| Country | Link |
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| CN (1) | CN106033132B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201311A1 (en) * | 2017-05-03 | 2018-11-08 | 瑞仪光电(苏州)有限公司 | Backlight module and display device |
| CN206708858U (en) * | 2017-05-10 | 2017-12-05 | 合肥京东方显示光源有限公司 | Backlight module and display device |
| TWI806460B (en) * | 2021-12-14 | 2023-06-21 | 瑞儀光電股份有限公司 | Film assembly structure, backlight module and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1760727A (en) * | 2004-10-14 | 2006-04-19 | 中华映管股份有限公司 | Backboard, backlight module and liquid crystal display |
| CN201218891Y (en) * | 2008-05-30 | 2009-04-08 | 瑞仪(广州)光电子器件有限公司 | Backlight module frame seat with optical film positioning function |
| CN102418882A (en) * | 2011-08-15 | 2012-04-18 | 友达光电股份有限公司 | Backlight module capable of reducing light leakage and display device |
| CN202392685U (en) * | 2011-11-18 | 2012-08-22 | 深圳市华星光电技术有限公司 | Optical membrane and backlight module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI381223B (en) * | 2008-09-23 | 2013-01-01 | Au Optronics Corp | Backboard of the backlight module |
-
2015
- 2015-03-20 CN CN201510126588.XA patent/CN106033132B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1760727A (en) * | 2004-10-14 | 2006-04-19 | 中华映管股份有限公司 | Backboard, backlight module and liquid crystal display |
| CN201218891Y (en) * | 2008-05-30 | 2009-04-08 | 瑞仪(广州)光电子器件有限公司 | Backlight module frame seat with optical film positioning function |
| CN102418882A (en) * | 2011-08-15 | 2012-04-18 | 友达光电股份有限公司 | Backlight module capable of reducing light leakage and display device |
| CN202392685U (en) * | 2011-11-18 | 2012-08-22 | 深圳市华星光电技术有限公司 | Optical membrane and backlight module |
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| Publication number | Publication date |
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| CN106033132A (en) | 2016-10-19 |
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