CN103851420A - Backlight module - Google Patents
Backlight module Download PDFInfo
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- CN103851420A CN103851420A CN201210523554.0A CN201210523554A CN103851420A CN 103851420 A CN103851420 A CN 103851420A CN 201210523554 A CN201210523554 A CN 201210523554A CN 103851420 A CN103851420 A CN 103851420A
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- lgp
- backlight module
- fixed part
- face
- backboard
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Abstract
The invention provides a backlight module, which comprises a back plate, a light guide plate, an elastic fixing element and a propping element, wherein the back plate comprises a clamping part and a slide wall, the light guide plate is arranged on the back plate, in addition, the light guide plate is provided with a first side surface, a second side surface, a bottom surface and a top surface, the first side surface and the second side surface are opposite, the bottom surface and the top surface are opposite, the first side surface is connected with the bottom surface and the top surface, the second side surface is connected with the bottom surface and the top surface, the elastic fixing element is arranged in the clamping part and is provided with an accommodating space for accommodating partial light guide plate, and the propping element is arranged between the second side surface and the side wall of the light guide plate and is used for butting the light guide plate.
Description
Technical field
The present invention relates to a kind of backlight module, and be particularly related to a kind of backlight module with flexible fastening element and contact element.
Background technology
Please refer to Fig. 1, it is existing side-light backlight module schematic top plan view.As shown in Figure 1, backlight module 1 comprises backboard 10, LGP 11 and light source 12.LGP 11 is arranged on backboard 10, and light source 12 is arranged on backboard 10 and the incidence surface 110 of corresponding LGP 11.Side 111,112 adjacent with incidence surface 110 on LGP 11 has respectively multiple grooves 113, and backboard 10 has multiple setting elements 101.In the time that LGP 11 is assembled on backboard 10, multiple setting elements 101 of backboard 10 can be contained in the multiple grooves 113 on the side 111,112 of LGP 11, and LGP 11 can be fixed on backboard 10.
But, groove 113 and the existence of setting element 101 because of tolerance, when setting element 101 is placed in groove 113 when interior, generation that can gapped 100 between setting element 101 and groove 113, and this gap 100 can cause LGP 11 to produce the situation of movements.In the time that LGP 11 moves, gap 100a between LGP 11 and light source 12 also can change relatively, for instance, as shown in Figure 1, in the time that LGP 11 moves towards A direction, gap 100a between LGP 11 and light source 12 can diminish, and in the time that LGP 11 moves towards B direction, the gap 100a between LGP 11 and light source 12 can become large.The situation that above-mentioned gap 100a changes can impact optics briliancy (brightness) or the color uniformity.In addition,, in the time above-mentioned backlight module 1 structure being impacted with vibration test, have the situation generation that setting element 101 is crooked or cause LGP 11 to break.
Summary of the invention
Object of the present invention is providing a kind of backlight module exactly, and it sees through flexible fastening element and contact element lightguide plate fixing.
For reaching above-mentioned advantage, the present invention proposes a kind of backlight module, and it comprises backboard, LGP, flexible fastening element and contact element.Backboard has a holding section and a sidewall.LGP is arranged on backboard and LGP has the first relative side and the second side and relative bottom surface and end face, wherein the first connection bottom surface, side and end face, the second connection bottom surface, side and end face.Flexible fastening element is arranged among holding section, and flexible fastening element has accommodation space, with accommodating part LGP.Contact element is arranged between the second side and sidewall of LGP, with against LGP.
In one embodiment of this invention, bottom above-mentioned flexible fastening element has and by extended the first fixed part respect to one another in bottom and the second fixed part, and bottom, the first fixed part and the second fixed part define accommodation space, wherein the first side of bottom contact LGP, and the first fixed part and the second fixed part contact respectively bottom surface and the end face of LGP.
In one embodiment of this invention, the first fixed part before above-mentioned flexible fastening element deformation and the spacing between the second fixed part are less than the spacing between bottom surface and the end face of LGP, accommodating LGP after flexible fastening element drawn, and fix LGP by elastic-restoring force.
In one embodiment of this invention, the support portion that above-mentioned contact element has supporting part and extended by one end of supporting part, wherein supporting part has the first upper projecting face and the second upper projecting face, the first upper projecting face is against the second side of LGP, the second upper projecting face is against the sidewall of backboard, and the bottom surface of support portion contact LGP, and the height of support portion equals the height of the first fixed part.
In one embodiment of this invention, above-mentioned backlight module also comprises padded element, is arranged between backboard and LGP, and to support LGP, and the height of padded element equals the height of the first fixed part.
In one embodiment of this invention, above-mentioned flexible fastening element has bottom and the fixed part that extends from bottom, and bottom defines accommodation space with fixed part, wherein the first side of bottom contact LGP, and fixed part contacts the end face of LGP.
In one embodiment of this invention, also comprise light source, be arranged on backboard, light source has circuit board and is arranged on the multiple light-emitting components on circuit board, the second side of the corresponding LGP of these light-emitting components, and the second side of LGP is incidence surface.
In one embodiment of this invention, the second side of above-mentioned contact member abuts LGP and make to there is gap between light source and the second side.
In one embodiment of this invention, the supporting part that above-mentioned contact element has supporting part and extended by one end of supporting part, wherein supporting part has the first upper projecting face and the second upper projecting face, the first upper projecting face is against the second side of LGP, the second upper projecting face is against the sidewall of backboard, and the circuit board of supporting part contact light source.
In one embodiment of this invention, above-mentioned contact element is metal material, and metal material comprises aluminum metal material and copper metal material.
In the present invention, by the collocation of flexible fastening element and contact element, gap between LGP and light source can not be changed, again because flexible fastening element has elastic-restoring force, in the time that LGP produces hot swollen shrinkage phenomenon because of variations in temperature, flexible fastening element still can be fixed LGP.
Accompanying drawing explanation
For above and other object of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate appended graphicly, be described in detail below.
Fig. 1 is existing side-light backlight module schematic top plan view.
Fig. 2 is the generalized section of the backlight module of one embodiment of the invention.
Fig. 3 is the schematic top plan view of the backlight module shown in Fig. 2.
Fig. 4 is the generalized section of the backlight module of another embodiment of the present invention.
Fig. 5 is the generalized section of the backlight module of another embodiment of the present invention.
Fig. 6 is the schematic top plan view of the backlight module of another embodiment of the present invention.
[main element symbol description]
1: backlight module
10: backboard
11: LGP
12: light source
100,100a: gap
110: incidence surface
111,112: side
113: groove
101: setting element
A, B: moving direction
2,2a, 2b, 2c: backlight module
20: backboard
21: LGP
22,22a: flexible fastening element
23,23a, 23b, 23c: contact element
24: padded element
25: light source
200: sidewall
201: holding section
211: the first sides
212: the second sides
213: bottom surface
214: end face
220,220a: accommodation space
221,221a: bottom
222: the first fixed parts
223: the second fixed parts
222a: fixed part
231: supporting part
232: support portion
233: supporting part
250: gap
251: circuit board
252: light-emitting component
2311: the first upper projecting faces
2312: the second upper projecting faces
H1, H2: highly
The specific embodiment
Please refer to Fig. 2, the generalized section of its backlight module that is one embodiment of the invention.As shown in Figure 2, the backlight module 2 of the present embodiment comprises backboard 20, LGP 21, flexible fastening element 22 and contact element 23.Backboard has holding section 201 and sidewall 200.LGP 21 is arranged on backboard 20 and LGP 21 has the first relative side 211 and the second side 212 and relative bottom surface 213 and end face 214, wherein the first side 211 connects bottom surface 213 and end face 214, the second sides 212 connect bottom surface 213 and end face 214.Flexible fastening element 22 is arranged among holding section 201, and flexible fastening element 22 has accommodation space 220, and this accommodation space 220 is in order to accommodating part LGP 21.Contact element 23 is arranged between second side 212 and sidewall 200 of LGP 21, and this contact element 23 is in order to against LGP 21.
From the above, more as shown in Figure 2, the flexible fastening element 22 described in the present embodiment for example has bottom 221 and by extended the first fixed part 222 respect to one another in bottom 221 and the second fixed part 223.And above-mentioned accommodation space 220 be by bottom 221, the first fixed part 222 and the second fixed part 223 around space.When part LGP 21 is placed in after accommodation space 220, the bottom 221 of flexible fastening element 22 for example contacts the first side 211 of LGP 21, and the first fixed part 222 of flexible fastening element 22 and the second fixed part 223 for example contact respectively the bottom surface 213 and end face 214 of LGP 21.This flexible fastening element 22 is before deformation, spacing between its first fixed part 222 and the second fixed part 223 is less than the spacing (the namely thickness of LGP 21) between bottom surface 213 and the end face 214 of LGP 21, when part LGP 21 and the accommodation space 220 of flexible fastening element 22 carry out in conjunction with time, accommodating LGP 21 after flexible fastening element 22 drawns, and fix LGP 21 by elastic-restoring force.
From the above, more as shown in Figure 2, the contact element 23 described in the present embodiment has supporting part 231 and support portion 232, and this support portion 232 is extended by one end of supporting part 231, and supporting part 231 has the first upper projecting face 2311 and the second upper projecting face 2312.In the time that LGP 21 is mounted on backboard 20, the first upper projecting face 2311 of supporting part 231 is against the second side 212 of LGP 21, and the second upper projecting face 2312 of supporting part 231 is against the sidewall 200 of backboard 20, support portion 232 contacts the bottom surface 213 of LGP 21.In addition, contact element 23 materials are for example metal materials, and metal material comprises copper metal material and aluminum metal material etc.
As shown in Figure 2, the height of the support portion 232 of the contact element 23 described in the present embodiment is H1, and the height of the first fixed part 222 of flexible fastening element 22 is H2, and H1=H2.The height H 1 of the support portion 232 of contact element 23 equals the height H 2 of the first fixed part 222 of flexible fastening element 22, and its object is to avoid LGP 21 to be mounted on the situation that the rear generation of backboard 20 is tilted.
Please refer to Fig. 3, it is the schematic top plan view of the backlight module shown in Fig. 2.As shown in Figure 3, the backlight module 2 described in the present embodiment also includes light source 25.This light source 25 is arranged on backboard 20, and light source 25 has circuit board 251 and is arranged on the multiple light-emitting components 252 on circuit board 251, the second side 212 of the corresponding LGP 21 of these light-emitting components 252, in other words, the second side 212 is the incidence surface of LGP 21.Again as shown in Figure 3, in the time supporting element 23 against the second side 212 of LGP 21, can make light source 25 and the second side 212 of LGP 21 there is a suitable gap 250.In the present embodiment, when LGP 21 for example, produces the situation that volume increases because of external factor (being temperature rise), flexible fastening element 22 pushes generation deformation because of the LGP 21 that has elastic-restoring force and increased by volume, and be so that metal material is difficult for producing deformation against the contact element 23 of the second side 212 of LGP 21, therefore, in the time that LGP 21 produces deformation, can guarantee that gap 250 distances between the second side 212 and the light source 25 of LGP 21 can not produce too large variation.
Please refer to Fig. 4, it is the generalized section of the backlight module described in another embodiment of the present invention.As shown in Figure 4, backlight module 2 shown in backlight module 2a described in the present embodiment and Fig. 2 is similar, difference is, contact element 23a described in the present embodiment for example only has supporting part 231, and in the situation that contact element 23a only has supporting part 231, LGP 21 can support and produces the situations of inclination because lose.Now, padded element 24 is set between backboard 20 and LGP 21, and this padded element 24 is for example cushion block or block, and the height of padded element 24 equals the height H 3 of the first fixed part 222 of flexible fastening element 22, thus, can avoid equally LGP 21 to produce the situation of inclination.
Please refer to Fig. 5, it is the generalized section of the backlight module described in another embodiment of the present invention.As shown in Figure 5, the backlight module 2 shown in the backlight module 2b described in the present embodiment and Fig. 2 is similar, and difference is, the fixed part 222a that the flexible fastening element 22a described in the present embodiment has bottom 221a and extends from bottom 221a.Bottom 221a and fixed part 222a are around defining accommodation space 220a.The first side 211 of the bottom 221a contact LGP 21 of flexible fastening element 22a, and the end face 214 of fixed part 222a contact LGP 21.In the present embodiment, LGP 21 contacts with backboard 20, the structure of the flexible fastening element 22a described in collocation the present embodiment, and the contact element 23a shown in contact element 23b and Fig. 4 is similar, only has supporting part 231.In Fig. 5, LGP 21 contacts with backboard 20, but does not represent between LGP 21 and backboard 20 other members can not be set, and in fact, still has the setting of other member between LGP 21 and backboard 20, for example: reflectance coating (not shown).
Please refer to Fig. 6, it is the schematic top plan view of the backlight module described in another embodiment of the present invention.As shown in Figure 6, backlight module 2,2a shown in backlight module 2c described in the present embodiment and Fig. 2, Fig. 4 is similar, difference is, the supporting part 233 that the contact element 23c described in the present embodiment has supporting part 231 and extended by one end of supporting part 231.This supporting part 233 contacts the circuit board 251 of light source 25.Because the material of contact element 23c is the good metal material of thermal conductivity, be for example copper metal material or aluminum metal material, therefore, the supporting part 233 of contact element 23c, also can be as the heat transfer medium of light source 25 except in order to carry light source 25.
In sum, backlight module of the present invention, is mainly that first side and second side relative at LGP arranges respectively flexible fastening element and contact element.Flexible fastening element is positioned at the first side of LGP, and flexible fastening element comes LGP the lightguide plate fixing of accommodating part by accommodation space.Contact element is positioned at the second side, in order to against LGP.By the collocation of flexible fastening element and contact element, gap between LGP and light source can not be changed, again because flexible fastening element has elastic-restoring force, in the time that LGP produces hot swollen shrinkage phenomenon because of variations in temperature, flexible fastening element still can be fixed LGP.
The foregoing is only preferred embodiment of the present invention, can not limit scope of the invention process with this, allly do simple equivalence according to the claims in the present invention book and description and change and modify, all still remain within the scope of the patent.Arbitrary embodiment of the present invention or claim must not reached the disclosed whole objects of the present invention or advantage or feature in addition.In addition, summary part and title are only the use for auxiliary patent document search, are not used for limiting the present invention's claim.In addition, the term such as " first ", " second " of mentioning in this description or claim is only in order to name the title of element or to distinguish different embodiment or scope, and is not used for the upper limit or the lower limit of limiting element quantity.
Claims (10)
1. a backlight module, comprises a backboard, a LGP, and a flexible fastening element and a contact element, wherein:
This backboard has a holding section and a sidewall,
This LGP is arranged on this backboard and this LGP has one first relative side and one second side and a relative bottom surface and an end face, and wherein this first side connects this bottom surface and this end face, and this second side connects this bottom surface and this end face,
This flexible fastening element is arranged among this holding section, and this flexible fastening element has an accommodation space, in order to this LGP of accommodating part,
This contact element, is arranged between this second side and this sidewall of this LGP, in order to against this LGP.
2. backlight module as claimed in claim 1, it is characterized in that, this flexible fastening element has a bottom and by extended one first fixed part respect to one another in this bottom and one second fixed part, and this bottom, this first fixed part and this second fixed part define this accommodation space, wherein this first side of this LGP of this bottom contact, and this first fixed part and this second fixed part contact respectively this bottom surface and this end face of this LGP.
3. backlight module as claimed in claim 2, it is characterized in that, spacing between this first fixed part and this second fixed part before this flexible fastening element deformation is less than the spacing between this bottom surface and this end face of this LGP, accommodating this LGP after this flexible fastening element drawn, and fix this LGP by an elastic-restoring force.
4. backlight module as claimed in claim 2, it is characterized in that, the support portion that this contact element has a supporting part and extended by one end of this supporting part, wherein this supporting part has one first upper projecting face and one second upper projecting face, this first upper projecting face is against this second side of this LGP, this second upper projecting face is against this sidewall of this backboard, and this support portion contacts this bottom surface of this LGP, and the height of this support portion equals the height of this first fixed part.
5. backlight module as claimed in claim 2, is characterized in that, also comprises a padded element, is arranged between this backboard and this LGP, and to support this LGP, and the height of this padded element equals the height of this first fixed part.
6. backlight module as claimed in claim 1, it is characterized in that, this flexible fastening element has a bottom and the fixed part extending from this bottom, and this bottom and this fixed part define this accommodation space, wherein this first side of this this LGP of bottom contact, and this fixed part contacts this end face of this LGP.
7. backlight module as claimed in claim 1, it is characterized in that, also comprise a light source, be arranged on this backboard, this light source has a circuit board and is arranged on the multiple light-emitting components on this circuit board, those light-emitting components are corresponding to this second side of this LGP, and this second side of this LGP is an incidence surface.
8. backlight module as claimed in claim 7, is characterized in that, this second side of this this LGP of contact member abuts and make to have a gap between this light source and this second side.
9. backlight module as claimed in claim 7, it is characterized in that, the supporting part that this contact element has a supporting part and extended by one end of this supporting part, wherein this supporting part has one first upper projecting face and one second upper projecting face, this first upper projecting face is against this second side of this LGP, this second upper projecting face is against this sidewall of this backboard, and this supporting part contacts this circuit board of this light source.
10. backlight module as claimed in claim 1, is characterized in that, this contact element is a metal material, and this metal material comprises an aluminum metal material and a bronze medal metal material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210523554.0A CN103851420A (en) | 2012-12-07 | 2012-12-07 | Backlight module |
| TW102144261A TWI507796B (en) | 2012-12-07 | 2013-12-03 | Back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210523554.0A CN103851420A (en) | 2012-12-07 | 2012-12-07 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103851420A true CN103851420A (en) | 2014-06-11 |
Family
ID=50859399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210523554.0A Pending CN103851420A (en) | 2012-12-07 | 2012-12-07 | Backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103851420A (en) |
| TW (1) | TWI507796B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975916A (en) * | 2019-03-19 | 2019-07-05 | 惠州市宝明精工有限公司 | A kind of backlight module improving light guide board fixing structure |
| WO2022048714A1 (en) * | 2020-09-01 | 2022-03-10 | Continental Automotive Gmbh | Lighting unit having a centering device for a light guide |
| WO2022048713A1 (en) * | 2020-09-01 | 2022-03-10 | Continental Automotive Gmbh | Illumination unit having a centring device for a light guide |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151964A (en) * | 2015-03-31 | 2016-11-23 | 苏州璨宇光学有限公司 | Backlight module and display device |
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| WO2022048714A1 (en) * | 2020-09-01 | 2022-03-10 | Continental Automotive Gmbh | Lighting unit having a centering device for a light guide |
| WO2022048713A1 (en) * | 2020-09-01 | 2022-03-10 | Continental Automotive Gmbh | Illumination unit having a centring device for a light guide |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201423234A (en) | 2014-06-16 |
| TWI507796B (en) | 2015-11-11 |
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Application publication date: 20140611 |