CN104661941B - Optical sheet stack device and the method utilizing this device manufacture back light unit - Google Patents
Optical sheet stack device and the method utilizing this device manufacture back light unit Download PDFInfo
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- CN104661941B CN104661941B CN201380048812.7A CN201380048812A CN104661941B CN 104661941 B CN104661941 B CN 104661941B CN 201380048812 A CN201380048812 A CN 201380048812A CN 104661941 B CN104661941 B CN 104661941B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
- B65D85/48—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for glass sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/02—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/111—Bottom
- B65H2405/1112—Bottom with stepped surface portions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/114—Side, i.e. portion parallel to the feeding / delivering direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/112—Section geometry
- B65H2701/1125—Section geometry variable thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1928—Printing plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/673—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/6732—Vertical carrier comprising wall type elements whereby the substrates are horizontally supported, e.g. comprising sidewalls
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- Mechanical Engineering (AREA)
- Planar Illumination Modules (AREA)
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Abstract
The present invention relates to bending and the optical sheet stack device of fold that can reduce between optical sheet to greatest extent when above-below direction stacking optical sheet.The optical sheet stack device that the present invention relates to, it is characterized in that, including: base portion, possess for the above-below direction stacking smooth upper surface of multiple optical sheets, the first edge and the second edge of described first edge-perpendicular, the 3rd edge being positioned at the opposite at described first edge and the 4th edge with described 3rd edge-perpendicular；More than one first order component, vertically stands on the first edge of described base portion；More than one second order component, vertically stand on the second edge of described base portion, it is formed with more than one groove portion at the 3rd edge of described base portion, described optical sheet possesses the first edge, the second edge with described first edge-perpendicular, be positioned at the opposite at described first edge the 3rd edge and with the 4th edge of described 3rd edge-perpendicular, it is formed with more than one assembling projection at the 3rd edge of described optical sheet, multiple optical sheets are in the way of the groove portion overlap in described base portion places the assembling projection of optical sheet, it is stacked on the upper surface of base portion.
Description
Technical field
The present invention relates to optical sheet Stack Technology, should more particularly, to optical sheet stack device and utilization
Device manufactures the method for back light unit, and described optical sheet stack device is energy when above-below direction stacking optical sheet
Enough minimizing to greatest extent between optical sheet bends and fold.
Background technology
In general, liquid crystal indicator is such a device: it utilizes and applies the liquid crystal that voltage causes
The change of transmitance, passes after the multiple electronic information produced from various devices is changed into visual information
Defeated, they are different from CRT, do not have self-luminosity, need by rear light, but owing to running voltage is low,
Little power consumption, can portable use, be therefore widely used in wrist-watch, TV and computer display etc.
The one of non-luminescent type electronic displays.This liquid crystal indicator possesses for realizing the excellent of clear and natural
The single light source of the natural colorful image of matter, i.e., back light unit (backlight unit).Back light unit
It is configured to the back side illuminaton light from Liquid Crystal Module, and according to the difference of radiation modality, is divided into straight-down negative
(direct type) and side-light type (edge type).Such as mainly make at middle-size and small-size LCD back light unit
With the side-light backlight that make use of side light lamp.
This back light unit includes light source and multiple optical sheet, optical sheet optionally combine utilize diffusion sheet,
The blast sheet such as prismatic lens and DBEF etc..The light produced in view of side-light backlight and direct-type backlight
Characteristic determine image quality, the most multiple optical sheets be configured to launch uniform light and display high-brightness
The characteristic of degree.
In the past, in order to improve the operability of back light unit assembling procedure, in smooth base portion along vertically
Direction arrangement is according to each backlight the most in specie with stacking and stacking optical sheet set, these optical sheet set
Unit is combined as multiple optical sheet and forms, and operator as required, are entered by different optical sheet set
Row selection, is used in the assembling procedure of back light unit.
It addition, in order to accurately, assembling backlight unit easily, a lateral edges of each optical sheet is outside
Side is to protruding assembling projection (lug), and is formed with assembly hole on this assembling projection, with
It is assembled in the box body side of back light unit.Additionally, assembly hole is mainly processed with bore mode, therefore assemble
The edge in hole is in shape prominent up or down.
Thus, when the multiple optical sheet of stacking, due to assembling projection some or all of of optical sheet
During overlapping each other, assembling projection is only with the state stacking being bent upwards, and therefore causes multiple optics
There is bending and fold in sheet, if assembling optical sheet with the state of this bending, fold, then reduces backlight list
The quality of unit and reliability.
Summary of the invention
Technical problem
The present invention proposes in view of problem as above, it is therefore intended that provide optical sheet stack device and profit
The method manufacturing back light unit with this device, described optical sheet stack device stacks multiple light at above-below direction
Assembling projection can be reduced when learning sheet to greatest extent cause and bend on optical sheet and the showing of fold
As, the production efficiency of back light unit can be increased substantially with this.
Resolving probiems means
In order to achieve the above object, an aspect of of the present present invention provides a kind of optical sheet stack device, its feature
It is, including:
Base portion, this base portion possess for above-below direction stack multiple optical sheets smooth upper surface,
First edge and the second edge of described first edge-perpendicular, be positioned at described first edge opposite
Three edges and the 4th edge with described 3rd edge-perpendicular；
More than one first order component, vertically stands on the first edge of described base portion；
And
More than one second order component, vertically stands on the second edge of described base portion,
It is formed with more than one groove portion at the 3rd edge of described base portion,
Described optical sheet possess the first edge and the second edge of described first edge-perpendicular, be positioned at described
3rd edge on the opposite at the first edge and the 4th edge with described 3rd edge-perpendicular,
It is formed with more than one assembling projection at the 3rd edge of described optical sheet,
Multiple optical sheets place the side of the assembling projection of optical sheet with the groove portion overlap in described base portion
Formula, is stacked on the upper surface of base portion.
Second edge of described optical sheet and the length at the 4th edge and the second edge of described base portion and the
The distance to described groove portion at four edges is substantially the same.
The width in described groove portion is more than the width of the assembling projection of described optical sheet, the length in described groove portion
Length more than the assembling projection of described optical sheet.
Described groove portion is formed towards the lateral direction at described 3rd edge at the 3rd edge of described base portion
Open structure.
Described groove portion is formed as the outside relative to described 3rd edge at the 3rd edge of described base portion
To the structure closed.
Described groove portion is formed as single groove portion at the 3rd edge of described base portion, this single groove portion tool
There are width and the length of all assembling projections that can simultaneously house each optical sheet.
Described first order component extends the whole length at the first edge of described base portion, and described second
Arrangement component extends the whole length at the second edge of base portion, a side of described first order component
Portion contacts with each other with a side end of described second order component.
It is formed with multiple first order component across predetermined distance, in institute at the first edge of described base portion
The second edge stating base portion is formed with multiple second order component across predetermined distance.
The method that the another side of the present invention relates to manufacturing back light unit, it is characterised in that include following step
Rapid:
Prepare the step of optical sheet, prepare to be used in optical sheet and the light source of back light unit；
The step of stacking optical sheet, by optical sheet heap ready in the step of described preparation optical sheet
It is stacked on optical sheet stack device；And
The step of assembling backlight unit, utilizes the optical sheet of the base portion being stacked on optical sheet stack device
And light source carrys out assembling backlight unit.
In the step of described stacking optical sheet, described optical sheet stack device includes base portion, this base
Portion has upper surface, and is formed with groove portion at a lateral edges, thus with the assembling projection of described optical sheet
The mode overlapping with the groove portion of described base portion stacks.
Invention effect
According to the present invention, owing to being provided for housing the assembling of optical sheet with convex at a lateral edges of base portion
The groove portion of block, therefore, can reduce assembling to greatest extent and use when above-below direction stacks multiple optical sheet
Groove portion causes bending on optical sheet and the phenomenon of fold, it is possible to increase substantially back light unit
Production efficiency.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the optical sheet stack device that the first embodiment of the present invention relates to.
Fig. 2 is the top view of the optical sheet of stacking on the optical sheet stack device of the present invention.
Fig. 3 is the sectional view of the line A-A along Fig. 2.
Fig. 4 is the top view of the optical sheet stack device that the first embodiment of the present invention relates to.
Fig. 5 is the sectional view of the line B-B along Fig. 4.
Fig. 6 is the figure of the arrow C portion amplifying display Fig. 5.
Fig. 7 is the top view of the optical sheet stack device that second embodiment of the invention relates to.
Fig. 8 is the top view of the optical sheet stack device that third embodiment of the invention relates to.
Fig. 9 is the top view of the optical sheet stack device that fourth embodiment of the invention relates to.
Figure 10 is the top view of the optical sheet stack device that fifth embodiment of the invention relates to.
Figure 11 is that the optical sheet stack device utilizing the present invention is to manufacture the flow chart of the method for back light unit.
Detailed description of the invention
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.As reference, for the ease of saying
Bright, the size of element represented in the accompanying drawing of reference when the present invention is described, the thickness etc. of lines
Likely exaggerate expression.And, the term used in the present invention is to consider its work in the present invention
It is defined after with, it is possible to according to user, the intention of network operator and convention etc. the most no
With therefore, it should based on the entire content of this specification, this term is defined.
Fig. 1 to Fig. 6 is the schematic diagram of the optical sheet stack device that the first embodiment of the present invention relates to.
As it can be seen, the optical sheet stack device that the present invention relates to includes base portion 10；And first order
Component 21 and second order component 22, described first order component 21 and second order component 22 are along hanging down
Nogata is to orthogonal two edges being separately positioned on base portion 10.Base portion 10 have make multiple
The smooth upper surface 15 that optical sheet 30 stacks along above-below direction.And base portion 10 is formed as hexahedro
Body structure, this hexahedron structure has: the first edge 11；Second edge 12, is perpendicular to this first edge
11；3rd edge 13 is vertical with the second edge 12 and be positioned at the opposite at the first edge 11；And the 4th
Edge 14, is positioned at the opposite at the second edge 12 and vertical with the 3rd edge 13.
It addition, optical sheet 30 is formed as tetragon flake structure；This tetragon flake structure has: first
Edge 31；Second edge 32, is perpendicular to the first edge 31；3rd edge 33, hangs down with the second edge 32
Straight and be positioned at the opposite at the first edge 31；And the 4th edge 34, be positioned at the second edge 32 opposite and
Vertical with the 3rd edge 33, more than one assembling with convex it is formed with at the 3rd edge 33 of optical sheet 30
Block 50, is formed with assembly hole 51 at each assembling projection 50.
Optical sheet 30 can use the multiple optical sheets such as diffusion sheet, prismatic lens, blast sheet, and back light unit will
Two or more different types of optical sheet 30a, 30b, 30c are combined into one group (set) and use.
As it is shown in figure 1, three optical sheets (30a, 30b, 30c) can be combined into one group and carry out heap
Folded, such as, the optical sheet 30a of upside can be made up of blast sheets such as DBEF, middle optical sheet 30b
Being made up of prismatic lens, the optical sheet 30c of downside is made up of diffusion sheet.So, multiple optical sheets 30 are permissible
It is combined into one group and above-below direction stacking by plural optical sheet 30a, 30b, 30c.
First order component 21 vertically stands on the first edge 11 of base portion 10, first row
The inner surface of row component 21 is formed as tabular surface structure such that it is able to the first limit with optical sheet 30
The mode of edge 31 contact suitably arranges.
Second order component 22 vertically stands on the second edge 12 of base portion 10, second row
The inner surface of row component 22 is formed as tabular surface structure such that it is able to the second limit with optical sheet 30
The mode of edge 32 contact suitably arranges.
That is, when the upper surface of base portion 10 stacks optical sheet 30, due to the first limit of each optical sheet 30
Edge 31 and the second edge 32 contact, therefore with first order component 21 and second order component 22
Can extremely accurate arrange when above-below direction stacking optical sheet 30.
And, first order component 21 is formed as, along the length side at the first edge 11 of base portion 10
Extend to local, rather than extend the whole length at the first edge 11, equally, second order component 22
Being formed as, the length direction local along the second edge 12 of base portion 10 extends, rather than extends the
The whole length at two edges 12.
More than one groove portion 40, the group of each optical sheet 30 it is formed with at the 3rd edge 13 of base portion 10
Dress projection 50 is placed in this groove portion 40 overlappingly, and the most multiple optical sheet 30 above-below directions are arranged
Row stacking.As shown in Fig. 1, Fig. 4 to Fig. 6, the groove portion 40 that the first embodiment of the present invention relates to is permissible
Be formed as the structure open towards the outside at the 3rd edge.
Owing to assembly hole 51 is mainly formed by bore process, the therefore surrounding edge 52 of assembly hole 51
Highlight up or down.When optical sheet 30 above-below direction stacks, due to the prominent week of assembly hole 51
Peripheral edge 52 overlaps each other so that each assembling projection 50 inevitably bends, but as Fig. 5 with
And shown in Fig. 6, in the present invention, along with the assembling projection 50 of optical sheet 30 is placed in base portion 10
Groove portion 40, is bent downwardly on the downside of assembling projection 50 trend of optical sheet 30 partly, thus, and light
The assembling projection 50 learning sheet 30 tends to medial side from downside and makes the degree of crook of optical sheet 30 relatively subtract
Little, with the shape in general planar, additionally, the assembling of optical sheet 30 projection 50 tends to from medial side
Upside and make the assembling projection 50 of optical sheet 30 be bent upwards partly.That is, as it is shown in figure 5, from
Side is seen, owing to the assembling projection 50 of optical sheet 30 is by substantially in appropriately curved in the way of fan-shaped, from
And reduce assembling projection 50 to greatest extent and cause and bend and the phenomenon of fold at optical sheet 30.
As shown in Fig. 1 and Fig. 4, the second edge 32 and length L1 at the 4th edge 34 of optical sheet 30
It is substantially the same with the second edge 12 of base portion 10 and distance L2 to groove portion 40 at the 4th edge 14.
Thus, as shown in Figure 6, the assembling projection 50 of the optical sheet 30 being stacked on downside may be located at groove portion
The step 40a side of 40, thus be bent downwardly.
As shown in Figure 4, being preferably, the width W2 in groove portion 40 is more than the assembling projection of optical sheet 30
The width W1 of 50, length L4 in groove portion 40 assembling by length L3 of projection 50 more than optical sheet 30.
The assembling projection 50 being therefore prevented from optical sheet 30 is interfered in side, groove portion 40, thus optical sheet 30
Assembling projection 50 can be by natural torsion in the way of fan-shaped.
As it has been described above, multiple optical sheets 30 can be combined by plural optical sheet 30a, 30b, 30c
Become one group and above-below direction stacking.As it is shown in figure 1, three optical sheets 30a, 30b, 30c can combine
Above-below direction stacking after becoming one group, such as, the optical sheet 30a of upside can be by blast sheet structures such as DBEF
Becoming, middle optical sheet 30b is made up of prismatic lens, and the optical sheet 30c of downside is made up of diffusion sheet.
It is combined into one group (set) and upper and lower by plural optical sheet 30a, 30b, 30c by this
The bending and the fold that produce in each optical sheet 30a, 30b, 30c when stacking are carried out with conventional example
Relatively, then following [table 1].
[table 1]
The stacking sample of example was to stack multiple optical sheets in smooth base portion along above-below direction in the past
Optical sheet sample, and the testing result of the conventional example in upper table is, utilizes thickness detector (thick
Gauge), to first group (the 1st set), the 25th group (25th set) in these optical sheet samples, the 50th
Group (50th set) respective upside optical sheet, medial side optical sheet and the bending of downside optical sheet and fold
The height value caused carries out the result detected.And, the height value that bending and fold cause represents at each light
Maximum in the value that multiple test points (about 10 test points) of sheet individually detect.
The stacking sample of the present invention is made by the stack device of the present invention and stacks multiple optics along above-below direction
The sample of sheet 30, and the testing result of the present invention in upper table is, by the way of identical with conventional example,
Utilize thickness detector (thick gauge), to first group (1st set) in optical sheet sample, the 25th group
(25th set), the 50th group of (50th set) respective upside optical sheet 30c, medial side optical sheet 30b,
And the height value that causes of the bending of downside optical sheet 30a and fold carries out the result that detects.And, bending
And the height value that fold causes represents that the multiple test points (about 10 test points) at each optical sheet are independent
Maximum in the value detected.
As shown in above-mentioned [table 1], the bending of each optical sheet in the stacking sample of the present invention and fold
Generation compared with conventional example, be greatly reduced.
Fig. 7 is the top view of the optical sheet stack device illustrating that the second embodiment of the present invention relates to, such as figure
Shown in, it being formed with groove portion 45 in the 3rd side, edge 13 of base portion 10, this groove portion 45 is characterised by,
Be formed as the structure closed towards the lateral direction at the 3rd edge 13.
Due to other structure and effect same or like with above-mentioned first embodiment, so at this omission right
Its detailed description.
Fig. 8 is the top view of the optical sheet stack device illustrating that the third embodiment of the present invention relates to, such as figure
Shown in, it is formed with single groove portion 46 in the 3rd side, edge 13 of base portion 10, this single groove portion 46
It is characterised by being formed as relatively big, there are all assembling projections 50 that can simultaneously house optical sheet 30
Width and the size of length.
Due to other structure and effect same or like with first embodiment and the second embodiment, so
This omits detailed description thereof.
Fig. 9 is the top view of the optical sheet stack device illustrating that the fourth embodiment of the present invention relates to, such as figure
Shown in, first order component 21 extends the whole length at the first edge 11 of base portion 10, second row
Row component 22 extends the whole length at the second edge 12 of base portion 10.Therefore first order component 21
A side end of a side end and second order component 22 contact with each other.
Due to other structure and effect same or like to the 3rd embodiment with first embodiment, therefore exist
This omits detailed description thereof.
Figure 10 is the top view of the optical sheet stack device illustrating that the fifth embodiment of the present invention relates to, such as figure
Shown in, at the first edge 11 of base portion 10 to be formed with multiple each other in the way of predetermined distance
One arrangement component 21 is many to be formed in the way of predetermined distance at the second edge 12 of base portion 10
Individual second order component 22.First order component 21 and second order component 22 and the above embodiments
Comparing, its width is less.
Due to other structure and effect same or like to the 4th embodiment with first embodiment, therefore exist
This omits detailed description thereof.
Figure 11 is to illustrate to utilize the optical sheet stack device that the present invention relates to the method manufacturing back light unit
Flow chart, as it can be seen, the back light unit manufacture method of the present invention includes preparing optical sheet and the step of light source
Rapid S1, step S2 of stacking optical sheet and step S3 of assembling backlight unit.
In preparing step S1 of optical sheet and light source, the light source of composition of preparation back light unit, transmission light source
Multiple optical sheets and other multiple elements.Wherein, multiple optical sheets have for direct light source
The light guide plate of light, for diffusing light guiding plate light diffusion sheet, to the light spread by diffusion sheet
The concentration piece of outgoing after carrying out optically focused and making it reflect, be arranged in the reflecting plate of light guide plate bottom and other
Lens etc. multiple.
In step S2 of stacking optical sheet, the optical sheet of ready identical type is stacked on Fig. 1
Base portion 10 to the optical sheet stack device shown in Figure 10.Particularly, the assembling of optical sheet 30 is used
Projection 50 is stacked on the groove portion 40 of base portion 10 in an overlapping arrangement.So, along with the assembling of optical sheet 30
Be placed in the groove portion 40 of base portion 10 with projection 50, the assembling of optical sheet 30 with projection 50 tend on the downside of
And be bent downwardly partly, thus, the assembling of optical sheet 30 with projection 50 from downside tend to medial side and
The degree of crook making optical sheet 30 is relatively reduced, with the shape in general planar, additionally, optical sheet 30
Assembling with projection 50 from medial side tend on the upside of and the assembling projection 50 of optical sheet 30 the most upwards
Bending.That is, as it is shown in figure 5, from the side, due to the assembling of optical sheet 30 with projection 50 with substantially
Appropriately curved in fan-shaped mode such that it is able to reduce assembling projection 50 to greatest extent and cause optical sheet
30 bending and the phenomenons of fold.
In step S3 of assembling backlight unit, utilize the base portion 10 being stacked on optical sheet stack device
Optical sheet and light source carry out assembling backlight unit.
As above, the back light unit manufacture method of the present invention has the following advantages: due to the step at stacking optical sheet
Optical sheet 30 is stacked on the base portion 10 with groove 40 by rapid S2, reduces preservation the most to greatest extent
Bend during optical sheet 30 and fold such that it is able to increase substantially the quality of back light unit.
Above the specific embodiment of the present invention is illustrated, but the invention is not limited in description
Disclosed in embodiment and accompanying drawing, in the range of without departing from the technology of the present invention thought, the skill of art
Art personnel can carry out various deformation.
Claims (9)
1. an optical sheet stack device, it is characterised in that including:
Base portion, this base portion possess for above-below direction stack multiple optical sheets smooth upper surface,
First edge and the second edge of described first edge-perpendicular, be positioned at described first edge opposite
Three edges and the 4th edge with described 3rd edge-perpendicular；
More than one first order component, vertically stands on the first edge of described base portion；
And
More than one second order component, vertically stands on the second edge of described base portion,
It is formed with more than one groove portion at the 3rd edge of described base portion,
Described optical sheet possess the first edge and the second edge of described first edge-perpendicular, be positioned at described
3rd edge on the opposite at the first edge and the 4th edge with described 3rd edge-perpendicular,
It is formed with more than one assembling projection at the 3rd edge of described optical sheet,
Multiple optical sheets place the side of the assembling projection of optical sheet with the groove portion overlap in described base portion
Formula, is stacked on the upper surface of base portion.
Optical sheet stack device the most according to claim 1, it is characterised in that
Second edge of the second edge of described optical sheet and the length at described 4th edge and described base portion
And the 4th the distance to described groove portion at edge identical.
Optical sheet stack device the most according to claim 1, it is characterised in that
The width in described groove portion is more than the width of the assembling projection of described optical sheet, the length in described groove portion
Length more than the assembling projection of described optical sheet.
Optical sheet stack device the most according to claim 1, it is characterised in that
Described groove portion is formed towards the lateral direction at described 3rd edge at the 3rd edge of described base portion
Open structure.
Optical sheet stack device the most according to claim 1, it is characterised in that
Described groove portion is formed as the outside relative to described 3rd edge at the 3rd edge of described base portion
To the structure closed.
Optical sheet stack device the most according to claim 1, it is characterised in that
Described groove portion is formed as single groove portion at the 3rd edge of described base portion, this single groove portion tool
There are width and the length of all assembling projections that can simultaneously house each optical sheet.
Optical sheet stack device the most according to claim 1, it is characterised in that
Described first order component extends the whole length at the first edge of described base portion, and described second
Arrangement component extends the whole length at the second edge of base portion, a side of described first order component
Portion contacts with each other with a side end of described second order component.
Optical sheet stack device the most according to claim 1, it is characterised in that
It is formed with multiple first order component across predetermined distance, in institute at the first edge of described base portion
The second edge stating base portion is formed with multiple second order component across predetermined distance.
9. the method manufacturing back light unit, it is characterised in that comprise the following steps:
Prepare the step of optical sheet, prepare to be used in optical sheet and the light source of back light unit, wherein, in institute
The edge stating optical sheet is formed with more than one assembling projection；
The step of stacking optical sheet, by optical sheet heap ready in the step of described preparation optical sheet
Being stacked on optical sheet stack device, wherein, described optical sheet stack device includes base portion, this base portion
There is upper surface and be formed with groove portion at a lateral edges, thus with the assembling projection of described optical sheet and institute
The mode of the groove portion overlap stating base portion stacks；And
The step of assembling backlight unit, utilizes and is stacked on the optical sheet in the base portion of optical sheet stack device
And light source carrys out assembling backlight unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120104540A KR20140038156A (en) | 2012-09-20 | 2012-09-20 | Apparatus for stacking optical sheets |
| KR10-2012-0104540 | 2012-09-20 | ||
| PCT/KR2013/008352 WO2014046434A1 (en) | 2012-09-20 | 2013-09-16 | Optical sheet loading device, and manufacturing method for backlight unit using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104661941A CN104661941A (en) | 2015-05-27 |
| CN104661941B true CN104661941B (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380048812.7A Active CN104661941B (en) | 2012-09-20 | 2013-09-16 | Optical sheet stack device and the method utilizing this device manufacture back light unit |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR20140038156A (en) |
| CN (1) | CN104661941B (en) |
| TW (1) | TWI581034B (en) |
| WO (1) | WO2014046434A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110737123B (en) | 2018-07-18 | 2022-06-28 | 群创光电股份有限公司 | Display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303021A (en) * | 1999-11-30 | 2001-07-11 | 三星电子株式会社 | Liquid crystal display apparatus |
| CN1639619A (en) * | 2002-08-13 | 2005-07-13 | 三星电子株式会社 | Optical member, backlight assembly and liquid crystal display device using the same |
| CN1731247A (en) * | 2004-08-06 | 2006-02-08 | 三星电子株式会社 | Backlight assembly and utilize the display device of this backlight assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002202504A (en) * | 2000-12-27 | 2002-07-19 | Toshiba Corp | Liquid crystal display device |
| JP3842561B2 (en) * | 2001-01-24 | 2006-11-08 | 株式会社日立製作所 | Liquid crystal display |
| JP2003315793A (en) * | 2002-04-25 | 2003-11-06 | Optrex Corp | Backlight unit |
| KR20070000705A (en) * | 2005-06-28 | 2007-01-03 | 유양종 | Dust eliminate apparatus of back light unit and dust eliminate method thereof |
| KR101199777B1 (en) * | 2005-12-08 | 2012-11-09 | 엘지디스플레이 주식회사 | Liquid crystal display device |
| JP2009163150A (en) * | 2008-01-09 | 2009-07-23 | Sharp Corp | Method for producing optical sheet laminate, method for producing back light unit, optical sheet laminate and back light unit obtained by the production method, and optical sheet laminating device |
| KR20120056673A (en) * | 2010-11-25 | 2012-06-04 | 엘지디스플레이 주식회사 | Apparatus for depositing optical sheets |
-
2012
- 2012-09-20 KR KR1020120104540A patent/KR20140038156A/en not_active Application Discontinuation
-
2013
- 2013-09-16 CN CN201380048812.7A patent/CN104661941B/en active Active
- 2013-09-16 WO PCT/KR2013/008352 patent/WO2014046434A1/en active Application Filing
- 2013-09-17 TW TW102133656A patent/TWI581034B/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303021A (en) * | 1999-11-30 | 2001-07-11 | 三星电子株式会社 | Liquid crystal display apparatus |
| CN1639619A (en) * | 2002-08-13 | 2005-07-13 | 三星电子株式会社 | Optical member, backlight assembly and liquid crystal display device using the same |
| CN1731247A (en) * | 2004-08-06 | 2006-02-08 | 三星电子株式会社 | Backlight assembly and utilize the display device of this backlight assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014046434A1 (en) | 2014-03-27 |
| CN104661941A (en) | 2015-05-27 |
| KR20140038156A (en) | 2014-03-28 |
| TWI581034B (en) | 2017-05-01 |
| TW201413327A (en) | 2014-04-01 |
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