CN100510877C - Fixing structure of optical film - Google Patents
Fixing structure of optical film Download PDFInfo
- Publication number
- CN100510877C CN100510877C CNB2006101057549A CN200610105754A CN100510877C CN 100510877 C CN100510877 C CN 100510877C CN B2006101057549 A CNB2006101057549 A CN B2006101057549A CN 200610105754 A CN200610105754 A CN 200610105754A CN 100510877 C CN100510877 C CN 100510877C
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- film material
- fixed orifice
- fixed
- blooming piece
- sturcture
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Abstract
The invention relates to a fixing structure for an optic diaphragm, which comprises a base board, a plurality of fixing elements on the base board, and a first diaphragm material on the base board. Wherein, the first diaphragm material has a first fixing hole and a second fixing hole that are located at the horizontal location on the upper side of the first diaphragm material and the second fixing hole is of a first angle with the horizontal direction, and the fixing elements respectively pass the first fixing hole and the second fixing hole correspondingly. By arranging fixing holes of the diaphragm materials and reserving holes for the moving position, the invention makes all diaphragm materials of different thermal expansion coefficients to move toward a preset direction, which eliminates any movement interference between diaphragm materials.
Description
Technical field
The present invention relates to the fixed sturcture of a kind of optical film material of backlight module, particularly a kind of blooming piece.
Background technology
Because thin film transistor (TFT) manufacturing technology fast development, advantages such as high image quality, volume are little, in light weight because of having for LCD, low voltage drive, low consumpting power and applied range, so be widely used on the electronic product display device, as personal digital assistant, Portable TV, mobile phone, shoot with video-corder consumer electronics or computer products such as projector, notebook computer and desktop display, but because LCD is non-photism display device, so need could produce the function that shows by backlight module.
An optical film material and an aluminium backboard that backlight module comprises a light guide plate, a reflecting plate, a lamp source, is made up of the number layer films.Optical film material is made up of the number layer films and is arranged at the light guide plate upper surface, those films comprise down diffusion sheet, prismatic lens, reflective polarizers and go up diffusion sheet that optical film material can cooperate actual needs to select suitable film form according to the function that above-mentioned film provided.
Because optical film material mainly is the film that is made by plastic material, its thickness is between 0.1 to 0.2 millimeter, therefore must utilize stationary installation to be fixed in the top of light guide plate, generation is shifted or comes off in the process of carrying or assembling to avoid, and reduces backlight module is readjusted optical film material when assembling time.In addition, backlight module is carrying out as falling or during reliability test such as vibrations, also is not easy to cause displacement if fixed effect is good, also has the bad situation of picture quality and produces, as concealed wire or bright spot.
General traditional backlight module must the guide destatics and the film material is fixed on the module afterwards again when the assembling film material.Yet the film material has different coefficient of thermal expansion and contraction, therefore can't be fixing together with plain mode, in case static lead and remove bad or mechanism of ammonium fixation is bad, under transportation vibrations and environment thermal shock, will produce warpage (waving) effect or fine particle drops, finally influence the optics taste.
The fixed form of conventional optical film material, major part are the frames that a zonule is set in four corners of side frame backlight, and the activity space of film material is confined in the fixed range, and be fixing a little in order to avoid skid off by preceding frame again.Yet because of film material thin thickness undercapacity, under the environment that expands with heat and contract with cold, the vertical and horizontal swell increment of different film materials can make the film material occur warping phenomenon easily.
In addition, the fixed form of conventional optical film material uses fixed hole position fixedly during the film material, and the slotted hole of level in module only is provided.This mode is during as rising-heat contracting-cold, can the difficult swell increment with horizontal direction of hole of film material be absorbed because of film material gravity effect increases friction force, and film material rate of travel is big during vibrations, easily there is the problem that causes warpage and fine particle to drop to produce, causes the optics taste seriously to descend in case the phenomenon of Electrostatic Absorption takes place just can't get rid of.Therefore, how providing a kind of fixed sturcture of effective blooming piece is very important problem to address the above problem.
Summary of the invention
In view of the above problems, the purpose of the object of the invention is to overcome the deficiencies in the prior art and defective, a kind of fixed sturcture of blooming piece is proposed, in not changing the module assembly working and not increasing under the situation in man-hour, can effectively slow down the warpage issues that is produced because of Electrostatic Absorption, thermal expansion, assembling out-of-flatness, and convert film material gravity to one and separate an Electrostatic Absorption and a power-assisted of leading except that thermal expansion amount, and then effectively reduce the drop generation of phenomenon of warpage effect and vibrations back particle.
One of the object of the invention is the fixed sturcture that proposes a kind of blooming piece, utilizes fixation holes that the film material is set and the hole of reserving the shift position, and the film material of different heat expansion coefficient all can be advanced towards predetermined direction, can't produce the mobile interference between the film material.
One of the object of the invention is the fixed sturcture that proposes a kind of blooming piece, by the gravity of film material itself and the positive force of reducing friction, make the fixed position of fixed pin and ellipse slotted hole produce mobile, and then swell increment is directed to oval slotted hole absorbs thermal expansion amount, just can effectively solve the film material and can't get rid of the warpage effect that produces because of the backlight module internal difference in temperature changes the thermal expansion that causes.
For reaching above-mentioned purpose, the invention provides the fixed sturcture of the blooming piece of an embodiment, comprising: a base plate; Several retaining elements are arranged on the base plate; And one first film material, be positioned on the base plate, wherein the first film material has one first fixed orifice and one second fixed orifice and is one first angle in the horizontal position of the first film material upside and second fixed orifice and horizontal direction, and retaining element respectively correspondence pass first fixed orifice and second fixed orifice, this second fixed orifice is an oval slotted hole.
Beneficial effect of the present invention is that utilization of the present invention is provided with the fixation holes and the hole of reserving the shift position of film material, and the film material of different heat expansion coefficient all can be advanced towards predetermined direction, can't produce the mobile interference between the film material; By the gravity of film material itself and the positive force of reducing friction, make the fixed position of fixed pin and ellipse slotted hole produce mobile, and then swell increment is directed to oval slotted hole absorbs thermal expansion amount, just can effectively solve the film material and can't get rid of the warpage effect that produces because of the backlight module internal difference in temperature changes the thermal expansion that causes; The present invention is in not changing the module assembly working and not increasing under the situation in man-hour, can effectively slow down the warpage issues that is produced because of Electrostatic Absorption, thermal expansion, assembling out-of-flatness, and convert film material gravity to one and separate an Electrostatic Absorption and a power-assisted of leading except that thermal expansion amount, and then effectively reduce the drop generation of phenomenon of warpage effect and vibrations back particle.
Description of drawings
Figure 1A and Figure 1B are depicted as the front elevational schematic of fixed sturcture one embodiment of the blooming piece according to the present invention;
Fig. 2 A is depicted as the part front elevational schematic of Figure 1B;
Fig. 2 B and Fig. 2 C are depicted as the front elevational schematic of the different embodiment of fixed sturcture of the blooming piece according to the present invention;
Fig. 3 A and Fig. 3 B are depicted as the front elevational schematic of the different embodiment of fixed sturcture of the blooming piece according to the present invention;
Fig. 3 C is the diagrammatic cross-section of the B-B ' section of Fig. 3 A.
Symbol description among the figure
10 base plates
12 retaining elements
20 first film materials
22 first fixed orifices
24 second fixed orifices
25 the 3rd fixed orifices
26 the 4th fixed orifices
30 optical regions
40 second film materials
42 the 5th fixed orifices
44 the 6th fixed orifices
46 the 4th fixed orifices
θ 1 first angle
θ 2 second angles
The A sense of rotation
The F gravity direction
Embodiment
Figure 1A and Figure 1B are depicted as the front elevational schematic of fixed sturcture one embodiment of the blooming piece according to the present invention.In present embodiment, shown in Figure 1A, a base plate 10, this base plate 10 can be the backboard, back of the body frame, side frame of backlight module or other can carry the board of planar patch.On base plate 10, there are two retaining elements 12 to be provided with thereon, as fixed pin.Then consult Figure 1B, one first film material 20 is positioned on the base plate 10, and the first film material 20 is provided with one first fixed orifice 22 and one second fixed orifice 24.Wherein, first fixed orifice 22 and second fixed orifice 24 are arranged at the horizontal position of the first film material, 20 upsides respectively, on the base plate 10 those retaining elements 12 respectively correspondence pass first fixed orifice 22 and second fixed orifice 24, wherein, first fixed orifice 22 is arranged at arbitrary corner of the first film material, 20 upsides.The first film material 20 is constituted by the arbitrary at least of last diffusion sheet, prismatic lens, reflective polarizers and following diffusion sheet.Shown in Figure 1B, the perforate on the retaining element 12 on the base plate 10 and the first film material 20 must be arranged at effective optical region 30 zone in addition of optical film material, avoids influencing its optical effect.
Above-mentioned explanation continues, Fig. 2 A is depicted as the part front elevational schematic of Figure 1B, as shown in the figure, in present embodiment, first fixed orifice 22 combines each other with retaining element 12 the first film material 20 only can be moved along a sense of rotation A, only fixes the first film material 20 in order to slippage and retaining element 12 passes second fixed orifice 24.Wherein, second fixed orifice 24 is to be the oval slotted hole that one first angle θ 1 is provided with horizontal direction, and a long axis length of this oval slotted hole is greater than the horizontal expansion amount of this first film material between this first fixed orifice and this second fixed orifice.The preferred values of the long axis length of this oval slotted hole is in the twice of the horizontal expansion amount of first fixed orifice 22 and 24 these first film materials 20 of second fixed orifice.Generally speaking, this swell increment is the thermal expansion amount under 20 ℃ to 60 ℃ the environment.The first angle θ is the trigonometric function of falling the tangent that the coefficientoffriction of the first film material 20 is multiplied by the contact area A of the retaining element 12 and the first film material 20, shown in the following equation ()
θ=Tan
-1(μ * A) .... equation ()
The above-mentioned explanation that continues, shown in Fig. 2 A, first fixed orifice 22 is arranged at a corner of the first film material, 20 upsides, and combines each other with retaining element 12 the first film material 20 only can be moved along sense of rotation A.When blooming piece is applied to backlight module, and the backlight module internal difference in temperature changes when causing the thermal expansion of film material, by the gravity F of film material itself and the positive force of reducing friction 24 of second fixed orifices of oval slotted hole shape on the retaining element 12 and the first film material 20 being produced moves, and then film material swell increment is directed in the oval slotted hole absorbs thermal expansion amount, can reduce producing warpage (waving) effect.
Fig. 2 B and Fig. 2 C are depicted as the front elevational schematic of the different embodiment of fixed sturcture of the blooming piece according to the present invention.See also Fig. 2 B, be different from the foregoing description, in present embodiment, more set up one the 3rd fixed orifice 25 on the first film material 20 in first fixed orifice 22 and 24 of second fixed orifices, and on base plate 10, also be provided with corresponding retaining element 12 and pass the 3rd fixed orifice 25 and fix the first film material 20 in order to slippage.Shown in Fig. 2 C, be different from the foregoing description, in not influencing aforementioned first fixed orifice 22 and 24 effects of second fixed orifice down, also can at least one the 4th fixed orifice 26 be set and skid off, and also be provided with corresponding retaining element 12 on the base plate 10 and pass the 4th fixed orifice 26 in order to this first film material 20 of fixing in order to avoid the first film material 20 in the first film material, 20 downsides.Be arranged at the fixed orifice of the first film material, 20 downsides,, can be designed to be same as the oval slotted hole shape of second fixed orifice 24 as the 4th fixed orifice 26, or other Any shape that retaining element 12 is passed.
Fig. 3 A and Fig. 3 B are depicted as the front elevational schematic of the different embodiment of blooming piece member according to the present invention.As shown in Figure 3A, in present embodiment, when application the present invention fixed several film materials, the setting of the first film material (marking on the figure) last first fixed orifice 22 and second fixed orifice 24 repeated no more in this as aforementioned, and the second film material 40 is stacked and placed on the first film material.The second film material 40 is constituted by the arbitrary at least of last diffusion sheet, prismatic lens, reflective polarizers and following diffusion sheet.On the second film material 40, one the 5th fixed orifice 42 and one the 6th fixed orifice 44 are arranged at the horizontal position of upside, and correspond to first fixed orifice and the second fixed orifice setting of the first film material, and the 6th fixed orifice 44 and horizontal direction are the oval slotted hole of one second angle θ 2.First fixed orifice (indicating on the figure) and the 5th fixed orifice 42 of the second film material 40 that retaining element 12 passes the first stacked film material mutually combine with it, and the first film material and the second film material 40 only can be moved along a sense of rotation.Second fixed orifice 24 of the first film material and the 6th fixed orifice 44 of the second film material 40 are stacked, and first angle of second fixed orifice 24 of the first film material is different from second angle of the 6th fixed orifice 44 of the second film material, and retaining element 12 passes the 6th fixed orifice 44 and fixes the first film material and the second film material 40 in order to slippage.If the first film material and the second film material 40 produce warpage because of placing out-of-flatness, also can utilize the gravity of film material own is that turning axle is directed to oval slotted hole with assembly error with the retaining element 12 of the 5th fixed orifice 42.
Above-mentioned explanation continues, consult Fig. 3 B, be different from previous embodiment, in not influencing aforementioned the 5th fixed orifice 42 and 44 effects of the 6th fixed orifice down, also can at least one the 4th fixed orifice 46 be set and skid off, and the retaining element 12 that also is provided with correspondence on the base plate 10 passes the 4th fixed orifice 46 in order to the fixing first film material 20 and the second film material 40 in order to avoid the first film material 20 and the second film material 40 in first film material (on the figure mark) and the second film material, 40 downsides.Be arranged at the fixed orifice of the second film material, 40 downsides,, can be designed to be same as the oval slotted hole shape of the 6th fixed orifice 44 as the 4th fixed orifice 46, or other Any shape that retaining element 12 is passed.
Fig. 3 C is the diagrammatic cross-section of the B-B ' section of Fig. 3 A, as shown in the figure, the first film material 20 and the second film material 40 second fixed orifice 24 on it and the 6th fixed orifice 44 are because oval slotted hole angle of inclination is different, under the gravity effect of film material itself and different swell incremenies, with the retaining element 12 that passes first fixed orifice 22 and the 5th fixed orifice 42 is turning axle, make retaining element 12 and second fixed orifice 24 and retaining element 12 and 44 different moving of relative positions generation of the 6th fixed orifice, help the eliminating of Electrostatic Absorption between the film material.
When one of feature of the present invention was to be fixed in the film material on the base plate, a corner of film material upside utilized fixedly film material of retaining element, and this first point of fixity only provides the film material to rotate.In this first point of fixity horizontal level have another fixed orifice for film material fixedly slippage in second point of fixity, the fixed orifice of second point of fixity is the oval slotted hole that a relative film material horizontal direction has an angle of inclination, second point of fixity except that provide the slippage of film material fixing, can absorb the swell increment of expanding with heat and contract with cold again on the other hand, and because of film material one end rotation only is provided thus between the film material rate of travel little, can effectively slow down the film material because of warpage effect that Electrostatic Absorption caused.
Comprehensively above-mentioned, utilization of the present invention is provided with the fixation holes and the hole of reserving the shift position of film material, and the film material of different heat expansion coefficient all can be advanced towards predetermined direction, can't produce the mobile interference between the film material; By the gravity of film material itself and the positive force of reducing friction, make the fixed position of fixed pin and ellipse slotted hole produce mobile, and then swell increment is directed to oval slotted hole absorbs thermal expansion amount, just can effectively solve the film material and can't get rid of the warpage effect that produces because of the backlight module internal difference in temperature changes the thermal expansion that causes; The present invention is in not changing the module assembly working and not increasing under the situation in man-hour, can effectively slow down the warpage issues that is produced because of Electrostatic Absorption, thermal expansion, assembling out-of-flatness, and convert film material gravity to one and separate an Electrostatic Absorption and a power-assisted of leading except that thermal expansion amount, and then effectively reduce the drop generation of phenomenon of warpage effect and vibrations back particle.
Above-described embodiment only is explanation technological thought of the present invention and characteristics; its purpose makes those skilled in the art can understand content of the present invention and is implementing according to this; when can not with qualification protection scope of the present invention; promptly the equalization of doing according to disclosed spirit generally changes or modifies, and must be encompassed in the claim of the present invention.
Claims (17)
1. the fixed sturcture of a blooming piece is characterized in that, comprises:
One base plate;
Several retaining elements are arranged on this base plate; And
One first film material, be positioned on this base plate, wherein this first film material has one first fixed orifice and one second fixed orifice, this first fixed orifice and this second fixed orifice are arranged at the horizontal position of this first film material upside and this second fixed orifice and horizontal direction and are one first angle, and those retaining elements respectively correspondence pass this first fixed orifice and this second fixed orifice, this second fixed orifice is an oval slotted hole.
2. the fixed sturcture of blooming piece as claimed in claim 1, wherein, this first fixed orifice is arranged at arbitrary corner of this first film material upside.
3. the fixed sturcture of blooming piece as claimed in claim 1, wherein, this first fixed orifice and this retaining element mutually combine this first film material only can be moved along a sense of rotation.
4. the fixed sturcture of blooming piece as claimed in claim 1, wherein, this retaining element passes this second fixed orifice and only fixes this first film material in order to slippage.
5. the fixed sturcture of blooming piece as claimed in claim 1, wherein, a long axis length of this ellipse slotted hole is greater than the horizontal expansion amount of this first film material between this first fixed orifice and this second fixed orifice.
6. the fixed sturcture of blooming piece as claimed in claim 1, wherein, a long axis length of this ellipse slotted hole is the twice of the horizontal expansion amount of this first film material between this first fixed orifice and this second fixed orifice.
7. the fixed sturcture of blooming piece as claimed in claim 1, wherein, this first angle is multiplied by the trigonometric function of falling the tangent of product of the contact area of this retaining element and this first film material for the friction factor of this first film material.
8. the fixed sturcture of blooming piece as claimed in claim 1, wherein, more be contained in and set up at least one the 3rd fixed orifice between this first fixed orifice and this second fixed orifice on this first film material, and this base plate more comprises this retaining element and passes the 3rd fixed orifice and fix this first film material in order to slippage.
9. the fixed sturcture of blooming piece as claimed in claim 1 wherein, more is contained in this first film material downside at least one the 4th fixed orifice is set, and this base plate more comprises this retaining element and passes the 4th fixed orifice in order to this first film material of fixing.
10. the fixed sturcture of blooming piece as claimed in claim 9, wherein, the shape of the 4th fixed orifice is same as this second fixed orifice.
11. the fixed sturcture of blooming piece as claimed in claim 1, wherein, this retaining element is a fixed pin.
12. the fixed sturcture of blooming piece as claimed in claim 1, wherein, this first film material is constituted by the arbitrary at least of last diffusion sheet, prismatic lens, reflective polarizers and following diffusion sheet.
13. the fixed sturcture of blooming piece as claimed in claim 1, wherein, more comprise one second film material and this first film material is stacked, wherein this second film material has one the 5th fixed orifice and one the 6th fixed orifice, and correspond to this first fixed orifice and this second fixed orifice setting of this first film material, the 6th fixed orifice and horizontal direction are one second angle.
14. the fixed sturcture of blooming piece as claimed in claim 13, wherein, this retaining element passes this first fixed orifice of this stacked first film material and the 5th fixed orifice of this second film material, and this first film material and this second film material only can be moved along a sense of rotation.
15. the fixed sturcture of blooming piece as claimed in claim 13, wherein, this second fixed orifice of this first film material and the 6th fixed orifice of this second film material is stacked and this first angle is different from this second angle, and this retaining element passes this second fixed orifice and the 6th fixed orifice is fixed this first film material and this second film material in order to slippage.
16. the fixed sturcture of blooming piece as claimed in claim 13, wherein, this second film material is constituted by the arbitrary at least of last diffusion sheet, prismatic lens, reflective polarizers and following diffusion sheet.
17. the fixed sturcture of blooming piece as claimed in claim 13, wherein, the 6th fixed orifice is an oval slotted hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101057549A CN100510877C (en) | 2006-07-21 | 2006-07-21 | Fixing structure of optical film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101057549A CN100510877C (en) | 2006-07-21 | 2006-07-21 | Fixing structure of optical film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101109864A CN101109864A (en) | 2008-01-23 |
| CN100510877C true CN100510877C (en) | 2009-07-08 |
Family
ID=39041999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101057549A Expired - Fee Related CN100510877C (en) | 2006-07-21 | 2006-07-21 | Fixing structure of optical film |
Country Status (1)
| Country | Link |
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| CN (1) | CN100510877C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072462A (en) * | 2009-10-29 | 2011-05-25 | 明拓工业株式会社 | Light guiding panel assembly for display, signboard, surface illumination or the like |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073157B (en) * | 2010-11-22 | 2012-07-25 | 友达光电股份有限公司 | Display device |
| US8770822B2 (en) | 2011-07-09 | 2014-07-08 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and a backlight device |
| CN202176976U (en) * | 2011-07-09 | 2012-03-28 | 深圳市华星光电技术有限公司 | Backlight module and backlight device |
| CN103244908A (en) * | 2012-02-10 | 2013-08-14 | 冠捷投资有限公司 | Fixing structure for optical diaphragms |
| CN103090323B (en) * | 2013-01-31 | 2016-03-30 | 深圳市华星光电技术有限公司 | Diaphragm location structure and backlight module thereof |
| CN103175105A (en) * | 2013-03-26 | 2013-06-26 | 深圳市华星光电技术有限公司 | Fixing structure and backlight module of optical diaphragm and assembly method thereof |
| CN105629573B (en) * | 2016-03-08 | 2018-09-18 | 昆山龙腾光电有限公司 | Backlight module and liquid crystal display device |
-
2006
- 2006-07-21 CN CNB2006101057549A patent/CN100510877C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072462A (en) * | 2009-10-29 | 2011-05-25 | 明拓工业株式会社 | Light guiding panel assembly for display, signboard, surface illumination or the like |
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| Publication number | Publication date |
|---|---|
| CN101109864A (en) | 2008-01-23 |
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