CN103244908A - Fixing structure for optical diaphragms - Google Patents
Fixing structure for optical diaphragms Download PDFInfo
- Publication number
- CN103244908A CN103244908A CN2012100308278A CN201210030827A CN103244908A CN 103244908 A CN103244908 A CN 103244908A CN 2012100308278 A CN2012100308278 A CN 2012100308278A CN 201210030827 A CN201210030827 A CN 201210030827A CN 103244908 A CN103244908 A CN 103244908A
- Authority
- CN
- China
- Prior art keywords
- blooming piece
- ear
- piece
- snap
- fixed part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The invention provides a fixing structure for optical diaphragms. A first optical diaphragm has a first thermal expansion coefficient and is provided with a first lug portion (121), and the first lug portion is jointed to a first fixing portion (150) of a frame (111) to form a first clearance. A second optical diaphragm has a second thermal expansion coefficient and is provided with a second lug portion (131), and the second plug portion is jointed to a second fixing portion (160) of the frame to form a second clearance. A third optical diaphragm has a third thermal expansion coefficient and is provided with a third lug portion (141), and the third lug portion is jointed to a third fixing portion (170) of the frame to form a third clearance. The first clearance, the second clearance and the third clearance are designed according to the first thermal expansion coefficient, the second thermal expansion coefficient and the third thermal expansion coefficient respectively.
Description
Technical field
The invention relates to a kind of fixed structure of diaphragm, and particularly relevant for a kind of fixed structure that is applicable to the blooming piece of backlight module.
Background technology
Even to this day, LCD has substituted traditional cathode-ray picture tube display, becomes the market mainstream.It is luminous that the display mode of LCD belongs to inactive mode, so LCD needs can to provide in the installing of the display floater back side the active luminescence component of light source, is backlight module.Backlight module has light emitting source, this light emitting source generally adopt cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL) or light emitting diode (Light-Emitting Diode, LED).For the image that display floater is presented even and clear, can the light that light emitting source produces be evenly distributed when entering display floater has crucial influence, therefore backlight module needs the light of light emitting source is mixed diffusion by modes such as reflection and refractions, makes light can be evenly distributed in display floater.For this reason, backlight module generally can adopt the combination of reflector plate, LGP and blooming piece to achieve the above object.Wherein preferred implementation can adopt a plurality of blooming pieces that respectively have different efficacies, makes the mixing diffusion energy of light more even, and these blooming pieces are such as being prismatic lens, diffusion barrier sheet, brightening piece, polaroid and reflective brightness enhancement film.
The side of these blooming pieces disposes ear, and its position forms snap openings corresponding to the fixed part of the frame of backlight module after these ears coincide, and this snap openings engages with fixed part, makes these blooming pieces be engaged in frame.And, consider that the blooming sector-meeting expands with heat and contract with cold, so can leave the gap between snap openings and the fixed part.Problem is, different blooming pieces has different thermal coefficient of expansion (thermal expansion coefficient), when temperature changes, its degree of expanding with heat and contract with cold is also had nothing in common with each other, and may cause warpage (waving) or moire (mura) phenomenon.
Summary of the invention
The objective of the invention is to propose a kind of fixed structure of blooming piece, it disposes corresponding ear and fixed part at the blooming piece with different heat expansion coefficient, to adapt to expanding with heat and contract with cold that each blooming piece produces because of variations in temperature.
For achieving the above object, the present invention proposes a kind of fixed structure of blooming piece, and it is applicable to a backlight module, and the fixed structure of blooming piece comprises one first ear, one second ear and a backboard.The side that is arranged at one first blooming piece extends in first ear, and first blooming piece has one first thermal coefficient of expansion; The side that is arranged at one second blooming piece extends in second ear, and second blooming piece has one second thermal coefficient of expansion.Backboard has a base plate and a frame, frame disposes respectively corresponding to one first fixed part of first ear and second ear and one second fixed part, frame and base plate are formed with an accommodation space jointly, and accommodation space is in order to ccontaining first blooming piece and second blooming piece.First blooming piece is positioned on the base plate and first ear is engaged in first fixed part, is formed with one first gap between first ear and first fixed part, and first gap is corresponding to first thermal coefficient of expansion.Second blooming piece is positioned on first blooming piece and second ear is engaged in second fixed part, is formed with one second gap between second ear and second fixed part, and second gap is corresponding to second thermal coefficient of expansion.
In a preferred embodiment of the present invention, the fixed structure of described blooming piece also comprises a third ear portion, and the side that is arranged at one the 3rd blooming piece extends in third ear portion, and the 3rd blooming piece has one the 3rd thermal coefficient of expansion.Frame disposes one the 3rd fixed part corresponding to third ear portion.The 3rd blooming piece is positioned over described accommodation space and third ear portion is engaged in the 3rd fixed part, is formed with a third space between third ear portion and the 3rd fixed part, and third space is corresponding to the 3rd thermal coefficient of expansion.
In a preferred embodiment of the present invention, described first ear, second ear and third ear portion are the concave character type structure that convexedly stretches in described side, and have one first snap openings, one second snap openings and one the 3rd snap openings respectively.First fixed part, second fixed part and the 3rd fixed part have one first snap-latch piece, one second snap-latch piece and one the 3rd snap-latch piece respectively.First snap-latch piece, second snap-latch piece and the 3rd snap-latch piece are engaged in first snap openings, second snap openings and the 3rd snap openings respectively.
In another preferred embodiment of the present invention, described first ear, second ear and third ear portion are the Back Word type structure that convexedly stretches in described side, and have one first snap openings, one second snap openings and one the 3rd snap openings respectively.First fixed part, second fixed part and the 3rd fixed part have one first snap-latch piece, one second snap-latch piece and one the 3rd snap-latch piece respectively.First snap-latch piece, second snap-latch piece and the 3rd snap-latch piece are engaged in first snap openings, second snap openings and the 3rd snap openings respectively.
In a preferred embodiment of the present invention, dispose double faced adhesive tape between described first blooming piece, second blooming piece and the 3rd blooming piece.
In a preferred embodiment of the present invention, described first blooming piece is the arbitrary or any combination among prismatic lens, diffusion barrier sheet, brightening piece, polaroid and the reflective brightness enhancement film; Described second blooming piece is the arbitrary or any combination among prismatic lens, diffusion barrier sheet, brightening piece, polaroid and the reflective brightness enhancement film; Described the 3rd blooming piece is the arbitrary or any combination among prismatic lens, diffusion barrier sheet, brightening piece, polaroid and the reflective brightness enhancement film.
In a preferred embodiment of the present invention, described first ear, second ear and third ear portion are positioned at the left and right side of first blooming piece, second blooming piece and the 3rd blooming piece respectively.In another preferred embodiment of the present invention, described first ear, second ear and third ear portion are positioned at the upper and lower side of first blooming piece, second blooming piece and the 3rd blooming piece respectively; Or first ear, second ear and third ear portion are positioned at upper and lower a, left side and the right edge of first blooming piece, second blooming piece and the 3rd blooming piece respectively.
In a preferred embodiment of the present invention, described backlight module also comprises reflector plate, LGP and light source module, and reflector plate is disposed on the base plate, and LGP is disposed between reflector plate and first blooming piece, and light source module is disposed at the side of LGP.
The fixed structure of a kind of blooming piece proposed by the invention makes the blooming piece with different heat expansion coefficient be engaged in corresponding fixed part respectively, causes warpage and moire phenomenon to avoid because expand with heat and contract with cold.
For allowing purpose of the present invention, feature and advantage that those of ordinary skills are more readily understood, hereinafter lift a preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the schematic diagram of fixed structure of the blooming piece of a preferred embodiment of the present invention.
Fig. 2 is the ear of first blooming piece of a preferred embodiment of the present invention and the partial enlarged drawing of fixed part.
Fig. 3 is the ear of second blooming piece of a preferred embodiment of the present invention and the partial enlarged drawing of fixed part.
Fig. 4 is the ear of the 3rd blooming piece of a preferred embodiment of the present invention and the partial enlarged drawing of fixed part.
Fig. 5 is the partial sectional view of fixed structure of the blooming piece of a preferred embodiment of the present invention.
Fig. 6 is the ear of first blooming piece of another preferred embodiment of the present invention and the partial enlarged drawing of fixed part.
Identifier declaration
100: backlight module
110: backboard
111,211: frame
112: base plate
120,220: the first blooming pieces
121,221: the first ears
122,222: the first snap openings
130: the second blooming pieces
131: the second ears
132: the second snap openings
140: the three blooming pieces
141: third ear portion
142: the three snap openings
150,250: the first fixed parts
151,251: the first snap-latch pieces
160: the second fixed parts
161: the second snap-latch pieces
170: the three fixed parts
171: the three snap-latch pieces
180: preceding frame
191: LGP
192: reflector plate.
The specific embodiment
Please consult Fig. 1, Fig. 2, Fig. 3 and Fig. 4 simultaneously, Fig. 1 is the schematic diagram of fixed structure of the blooming piece of a preferred embodiment of the present invention; Fig. 2, Fig. 3 and Fig. 4 are respectively the partial enlarged drawing at a position, b position and the c position of the fixed structure of blooming piece shown in Figure 1.
The fixed structure of blooming piece proposed by the invention is applicable to backlight module 100, and the fixed structure of described blooming piece comprises first ear 121, second ear 131, third ear portion 141 and backboard 110.The side that is arranged at first blooming piece 120 extends in first ear 121, first blooming piece 120 has first thermal coefficient of expansion, the side that is arranged at second blooming piece 130 extends in second ear 131, second blooming piece 130 has second thermal coefficient of expansion, the side that is arranged at the 3rd blooming piece 140 extends in third ear portion 141, and the 3rd blooming piece 140 has the 3rd thermal coefficient of expansion.Described first thermal coefficient of expansion, second thermal coefficient of expansion are neither identical with the 3rd thermal coefficient of expansion three, therefore when temperature changes, first blooming piece 120, second blooming piece 130 and the 3rd blooming piece 140 degree of expanding with heat and contract with cold that produces are also inequality, therefore dispose corresponding ear and fixed part respectively.
May be configured with double faced adhesive tape (not illustrating among the figure) between first blooming piece 120, second blooming piece 130 and the 3rd blooming piece 140, to strengthen the steadiness between each blooming piece.
See also Fig. 5, Fig. 5 is the partial sectional view of fixed structure of the blooming piece of a preferred embodiment of the present invention, is example with d-d shown in Figure 1 position.The d-d position is analysing and observe of second blooming piece 130 and second fixed part, 160 joints, and Fig. 5 has shown that second snap openings 132 of second ear 131 is engaged in the sectional structure of second snap-latch piece 161.Backlight module 100 also comprises reflector plate 192, LGP 191, preceding frame 180 and light source module (not illustrating among the figure).Reflector plate 192 is disposed on the base plate 112, and LGP 191 is disposed between reflector plate 192 and first blooming piece 120, and light source module is disposed at the side of LGP 191.Preceding frame 180 is affixed with backboard 110, so that first blooming piece 120, second blooming piece 130 and the 3rd blooming piece 140 are limited in the described accommodation space.
In the present embodiment, first ear 121, second ear 131 and third ear portion 141 lay respectively at the left and right side of first blooming piece 120, second blooming piece 130 and the 3rd blooming piece 140.In other embodiments, first ear, second ear and third ear portion also can lay respectively at the upper and lower side of first blooming piece, second blooming piece and the 3rd blooming piece; Or first ear, second ear and third ear portion are positioned at any combination of upper and lower, the left and right edge of first blooming piece, second blooming piece and the 3rd blooming piece respectively.In addition, in other embodiments, the fixed structure of blooming piece is not limited to three kinds of blooming pieces, and two kinds of blooming pieces and corresponding fixed structure can only be arranged, and also can comprise blooming piece and corresponding fixed structure more than four kinds.
In another preferred embodiment of the present invention, first ear, second ear and third ear portion are respectively the Back Word type structure of the side that convexedly stretches in first blooming piece, second blooming piece and the 3rd blooming piece, and have first snap openings, second snap openings and the 3rd snap openings respectively.First fixed part, second fixed part and the 3rd fixed part have first snap-latch piece, second snap-latch piece and the 3rd snap-latch piece respectively.First snap-latch piece, second snap-latch piece and the 3rd snap-latch piece are engaged in first snap openings, second snap openings and the 3rd snap openings respectively.See also Fig. 6, Fig. 6 is the ear of first blooming piece of present embodiment and the partial enlarged drawing of fixed part, first ear 221 of first blooming piece 220 is Back Word type structure, has first snap openings 222 that is positioned at first ear, 221 centre, first fixed part 250 on the frame 211 has first snap-latch piece, 251, the first snap-latch pieces 251 and is configured to pass first snap openings 222.
In sum, the present invention is a kind of fixed structure of blooming piece, and the blooming piece with different heat expansion coefficient is engaged in corresponding fixed part respectively, causes warpage and moire phenomenon to avoid because expand with heat and contract with cold.The present invention has better flexibility and adaptability than prior art, and can promote display effect.
Though the present invention discloses as above with preferred embodiment; right its is not for limiting the present invention; any those of ordinary skills without departing from the spirit and scope of the present invention, when can doing a little change and retouching, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (10)
1. the fixed structure of a blooming piece is applicable to a backlight module (100), and wherein, the fixed structure of this blooming piece comprises:
One first ear (121,221), the side that is arranged at one first blooming piece (120,220) extends in this first ear, and this first blooming piece has one first thermal coefficient of expansion;
One second ear (131), the side that is arranged at one second blooming piece (130) extends in this second ear, and this second blooming piece has one second thermal coefficient of expansion;
One backboard (110), this backboard has a base plate (112) and a frame (111,211), this frame disposes one first fixed part (150 corresponding to this first ear and this second ear respectively, 250) with one second fixed part (160), this frame and this base plate are formed with an accommodation space jointly, this accommodation space is in order to ccontaining this first blooming piece and this second blooming piece, this first blooming piece is positioned on this base plate and this first ear is engaged in this first fixed part, be formed with one first gap between this first ear and this first fixed part, this first gap is corresponding to this first thermal coefficient of expansion; This second blooming piece is positioned on this first blooming piece and this second ear is engaged in this second fixed part, is formed with one second gap between this second ear and this second fixed part, and this second gap is corresponding to this second thermal coefficient of expansion.
2. as the fixed structure of claim 1 a described blooming piece, wherein, the fixed structure of this blooming piece also comprises a third ear portion (141), the side that is arranged at one the 3rd blooming piece (140) extends in this third ear portion, the 3rd blooming piece has one the 3rd thermal coefficient of expansion, this frame (111) disposes one the 3rd fixed part (170) corresponding to this third ear portion, the 3rd blooming piece is positioned over this accommodation space and this third ear portion is engaged in the 3rd fixed part, be formed with a third space between this third ear portion and the 3rd fixed part, this third space is corresponding to the 3rd thermal coefficient of expansion.
3. as the fixed structure of claim 2 a described blooming piece, wherein, this first ear (121), this second ear (131) and this third ear portion (141) are the concave character type structure that convexedly stretches in described side, and has one first snap openings (122) respectively, one second snap openings (132) and one the 3rd snap openings (142), this first fixed part (150), this second fixed part (160) has one first snap-latch piece (151) respectively with the 3rd fixed part (170), one second snap-latch piece (161) and one the 3rd snap-latch piece (171), this first snap-latch piece, this second snap-latch piece and the 3rd snap-latch piece are engaged in this first snap openings respectively, this second snap openings and the 3rd snap openings.
4. as the fixed structure of claim 2 a described blooming piece, wherein, this first ear (221), this second ear and this third ear portion are the Back Word type structure that convexedly stretches in described side, and has one first snap openings (222) respectively, one second snap openings and one the 3rd snap openings, this first fixed part (250), this second fixed part and the 3rd fixed part have one first snap-latch piece (251) respectively, one second snap-latch piece and one the 3rd snap-latch piece, this first snap-latch piece, this second snap-latch piece and the 3rd snap-latch piece are engaged in this first snap openings respectively, this second snap openings and the 3rd snap openings.
5. as the fixed structure of claim 2 a described blooming piece, wherein, dispose double faced adhesive tape between this first blooming piece (120), this second blooming piece (130) and the 3rd blooming piece (140).
6. as the fixed structure of claim 1 a described blooming piece, wherein, this first blooming piece (120) is the arbitrary or any combination among prismatic lens, diffusion barrier sheet, brightening piece, polaroid and the reflective brightness enhancement film.
7. as the fixed structure of claim 1 a described blooming piece, wherein, this second blooming piece (130) is the arbitrary or any combination among prismatic lens, diffusion barrier sheet, brightening piece, polaroid and the reflective brightness enhancement film.
8. as the fixed structure of claim 2 a described blooming piece, wherein, the 3rd blooming piece (140) is the arbitrary or any combination among prismatic lens, diffusion barrier sheet, brightening piece, polaroid and the reflective brightness enhancement film.
9. as the fixed structure of claim 2 a described blooming piece, wherein, this first ear (121), this second ear (131) and this third ear portion (141) lay respectively at the left and right side of this first blooming piece (120), this second blooming piece (130) and the 3rd blooming piece (140); Or this first ear, this second ear and this third ear portion are positioned at the upper and lower side of this first blooming piece, this second blooming piece and the 3rd blooming piece respectively; Or this first ear, this second ear and this third ear portion are positioned at upper and lower a, left side and the right edge of this first blooming piece, this second blooming piece and the 3rd blooming piece respectively.
10. as the fixed structure of claim 1 a described blooming piece, wherein, this backlight module (100) also comprises a reflector plate (192), a LGP (191) and a light source module, this reflector plate is disposed on this base plate (112), this LGP is disposed between this reflector plate and this first blooming piece (120), and this light source module is disposed at the side of this LGP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100308278A CN103244908A (en) | 2012-02-10 | 2012-02-10 | Fixing structure for optical diaphragms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100308278A CN103244908A (en) | 2012-02-10 | 2012-02-10 | Fixing structure for optical diaphragms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103244908A true CN103244908A (en) | 2013-08-14 |
Family
ID=48924620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100308278A Pending CN103244908A (en) | 2012-02-10 | 2012-02-10 | Fixing structure for optical diaphragms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244908A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712173A (en) * | 2013-12-23 | 2014-04-09 | 京东方科技集团股份有限公司 | Back plate and backlight source |
| CN107942558A (en) * | 2017-10-12 | 2018-04-20 | 惠科股份有限公司 | Liquid crystal display device and backlight module thereof |
| WO2019233057A1 (en) * | 2018-06-08 | 2019-12-12 | 广州视源电子科技股份有限公司 | Electromagnetic screen mounting structure and interactive smart tablet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2819254Y (en) * | 2005-05-17 | 2006-09-20 | 三和企业股份有限公司 | Negative-light module |
| CN101109864A (en) * | 2006-07-21 | 2008-01-23 | 中华映管股份有限公司 | Fixing structure of optical film |
| CN201652215U (en) * | 2010-03-05 | 2010-11-24 | 华映光电股份有限公司 | Diaphragm locating mechanism of backlight module |
-
2012
- 2012-02-10 CN CN2012100308278A patent/CN103244908A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2819254Y (en) * | 2005-05-17 | 2006-09-20 | 三和企业股份有限公司 | Negative-light module |
| CN101109864A (en) * | 2006-07-21 | 2008-01-23 | 中华映管股份有限公司 | Fixing structure of optical film |
| CN201652215U (en) * | 2010-03-05 | 2010-11-24 | 华映光电股份有限公司 | Diaphragm locating mechanism of backlight module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712173A (en) * | 2013-12-23 | 2014-04-09 | 京东方科技集团股份有限公司 | Back plate and backlight source |
| CN107942558A (en) * | 2017-10-12 | 2018-04-20 | 惠科股份有限公司 | Liquid crystal display device and backlight module thereof |
| WO2019233057A1 (en) * | 2018-06-08 | 2019-12-12 | 广州视源电子科技股份有限公司 | Electromagnetic screen mounting structure and interactive smart tablet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102529717B1 (en) | display device | |
| KR101807442B1 (en) | Backlight module and liquid crystal display device using backlight module | |
| RU2491472C1 (en) | Illumination device and display device | |
| JP2009245884A (en) | Planar light source device | |
| CN102297369A (en) | Backlight module and display device using same | |
| US20160291397A1 (en) | Display device | |
| TW201227084A (en) | Backlight module | |
| WO2017067101A1 (en) | Backlight module and liquid crystal display | |
| EP3425262B1 (en) | Light emitting device, display apparatus, and illumination apparatus | |
| CN105589239A (en) | Double-sided liquid crystal display module | |
| TWM392976U (en) | Edge-lit backlight module | |
| US9645295B2 (en) | Light guide plate and backlight module with the same | |
| CN103244908A (en) | Fixing structure for optical diaphragms | |
| WO2013191051A1 (en) | Display, and television receiver | |
| KR20140123432A (en) | Backlight unit and Liquid crystal display device including the same | |
| US10955694B2 (en) | Backlight module and liquid crystal display apparatus | |
| KR20100011875A (en) | Backlight module and liquid crystal display device | |
| CN202972966U (en) | Back plate of backlight source, backlight source and display device | |
| WO2020107897A1 (en) | Backlight module and display device thereof | |
| WO2013191047A1 (en) | Display, and television receiver | |
| TW200821680A (en) | Liquid crystal display | |
| US20090027919A1 (en) | Backlight module | |
| JP2019192574A (en) | Composite light guide member, lighting device, and display device | |
| US8801263B2 (en) | Backplate and backlight module comprising the same | |
| CN201439905U (en) | backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |