CN2831180Y - Backlight modular - Google Patents
Backlight modular Download PDFInfo
- Publication number
- CN2831180Y CN2831180Y CN 200520064409 CN200520064409U CN2831180Y CN 2831180 Y CN2831180 Y CN 2831180Y CN 200520064409 CN200520064409 CN 200520064409 CN 200520064409 U CN200520064409 U CN 200520064409U CN 2831180 Y CN2831180 Y CN 2831180Y
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- CN
- China
- Prior art keywords
- light source
- source cover
- guide plate
- hole
- light guide
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a backlight module set which comprises a light conducting plate which is provided with a light-in surface, a light source which is arranged at the light-in surface side, a light source cover which is covered on the light source and a fastening mechanism which is used for fixing the light source cover and the light conducting plate, wherein the backlight module set of the utility model can prevent the phenomenon of light leakage.
Description
[technical field]
The utility model relates to a kind of module backlight.
[background technology]
Because liquid crystal indicator has frivolous, little power consumption, advantage such as radiationless, be widely used in the electronic equipments such as instrument and meter of notebook computer, mobile phone, digital camera, display terminal.Because liquid crystal itself is not luminous, thereby need module backlight to provide area source for it.And light guide plate is a significant components in the module backlight, from the transmission direction that light source sends light beam, converts line source or pointolite to the area source outgoing in order to guiding.
A kind of prior art module backlight as shown in Figure 1, this module 10 backlight comprises that one has the light guide plate 11 of incidence surface 111, one is arranged on the cold cathode ray tube 12 of this incidence surface side, one covers on the light source cover 13 and that on this cold cathode ray tube 12 its light of launching is reflexed to this incidence surface 111 is used to accommodate this light guide plate 11, the framework 14 of this cold cathode ray tube 12 and this light source cover 13, the sub-fraction of the sub-fraction of this light source cover 13 and this incidence surface 111 two adjacent surfaces is superimposed, between this light source cover 13 and this light guide plate 11, form an enclosure space, to prevent that light from spilling between this light source cover 13 and this incidence surface 111, have certain space length between the one side 113 relative with this incidence surface 111 and this framework 14 in this light guide plate 11, this space length is greater than the be superimposed width of portion of this light source cover 13 and this light guide plate 11.
Be superimposed because of this light source cover 13 only has the sub-fraction on sub-fraction and this light guide plate 11 two sides, thereby its area that is superimposed with each other is less, the holding force of this this light guide plate 11 of light source cover 13 clampings is less.Have certain space length between the one side 113 relative and this framework 14 in this light guide plate 11, make this light guide plate 11 that moving of certain distance can be taken place in this framework 14 with this incidence surface 111.When this module 10 backlight in vibrations, clash into and when situation such as dropping, this light guide plate 11 is moved in this module 10 backlight, because of its ultimate range that moves greater than the be superimposed width of portion of this light source cover 13 and this light guide plate 11, make and produce a gap between this light guide plate 11 and this light source cover 13, thereby destroy the enclosure space of its formation, produce light leakage phenomena.
[utility model content]
In order to solve the problem of prior art module light leak backlight, be necessary to provide a kind of module backlight that prevents light leakage phenomena.
The disclosed a kind of module backlight of one better embodiment, it light source, one that comprises that a light guide plate, with incidence surface is arranged on this incidence surface side covers on the fixing structure that the light source cover and on this light source is fixed together this light source cover and this light guide plate, and this light source cover is accommodated this light guide plate within it from the part of this incidence surface.
Compared to prior art, because the utility model module backlight grips this light source cover by a fixing structure and is in the same place with this light guide plate, make to have enough big fixed clamp power between this light source cover and this light guide plate, increased the steadiness of this back light module unit structure.Even during situations such as this module backlight shakes, clashes into and drops, any position or the last change of distance can not take place between this light source cover and this light guide plate yet, remain stationary state between this light source cover and this light guide plate, can not produce the gap, can effectively prevent to produce light leakage phenomena because of the gap occurring between this light source cover and this light guide plate.
[description of drawings]
Fig. 1 is the schematic cross-section of a kind of prior art module backlight.
Fig. 2 is the schematic cross-section of the utility model module first embodiment backlight.
Fig. 3 is the decomposing schematic representation of Fig. 2.
Fig. 4 is the schematic cross-section of the utility model module second embodiment backlight.
Fig. 5 is the enlarged diagram of V part among Fig. 4.
Fig. 6 is the schematic cross-section of the utility model module the 3rd embodiment backlight.
Fig. 7 is the enlarged diagram of VII part among Fig. 6.
Fig. 8 is the schematic cross-section of the utility model module the 4th embodiment backlight.
Fig. 9 is the schematic cross-section of the utility model module the 5th embodiment backlight.
Figure 10 is the enlarged diagram of X part among Fig. 9.
Figure 11 is the side view of the utility model module the 6th embodiment backlight.
[embodiment]
See also Fig. 2 and Fig. 3, Fig. 2 is the schematic cross-section of the utility model module first embodiment backlight, and Fig. 3 is the decomposing schematic representation of Fig. 2.A kind of module backlight 20 comprises that light source 22 and that a rectangular light guide plate 21, is arranged on these incidence surface 211 sides covers on the light source cover 23 on this light source 22.This light guide plate 21 has an incidence surface 211, an exiting surface 212 adjacent with this incidence surface 211 and one and these exiting surface 212 opposed bottom surface 213.This light source 22 is a line source, as cold cathode ray tube.The part of the part of this light source cover 23 and this exiting surface 212 and this bottom surface 213 is superimposed, this light source cover 23 has a fixing structure 24 with the superimposed portion of this exiting surface 212, this fixing structure 24 comprises that a circular shrinkage hole 241, that is arranged on this exiting surface 212 is arranged on the gim peg 243 that embeds this through hole 242 and this shrinkage pool 241 on this light source cover 23 with these shrinkage pool 241 corresponding circular through holes 242 and, is fixed together this light source cover 23 and this light guide plate 21 by this fixed form.
This module 20 backlight grips this light source cover 23 by this fixing structure 24 is in the same place with this light guide plate 21, this light source cover 23 is superimposed with this light guide plate 21 partly has enough big fixed clamp power, has increased the steadiness of these module 20 structures backlight.Even during situations such as this module 20 backlight shakes, clashes into and drops, any position or the last change of distance can not take place between this light source cover 23 and this light guide plate 23 yet, promptly remain stationary state between this light source cover 23 and this light guide plate 21, can not produce the gap, can effectively prevent to produce light leakage phenomena because of the gap occurring between this light source cover 23 and this light guide plate 21.
See also Fig. 4 and Fig. 5, Fig. 4 is the schematic cross-section of the utility model module second embodiment backlight, and Fig. 5 is the enlarged diagram of V part among Fig. 4.The fixing structure 34 of this module 30 backlight and the difference of the first embodiment fixing structure 24 are: this fixing structure 34 comprises that one is arranged on the light source cover 33 and gim peg 343 corresponding through holes 342 from the outwards outstanding cylindric gim pegs 343 and that form of exiting surface 312, by line fixed forms that this gim peg 343 is embedded in through holes 342 light source cover 33 and light guide plate 31 is fixed together.
See also Fig. 6 and Fig. 7, Fig. 6 is the schematic cross-section of the utility model module the 3rd embodiment backlight, and Fig. 7 is the enlarged diagram of VII part among Fig. 6.The fixing structure 44 of this module 40 backlight and the difference of the first embodiment fixing structure 24 are: this fixing structure 44 comprises that one is formed on the light source cover 43 and these groove 441 corresponding fixedly projections 442 from the cave inward groove 441 and that forms of exiting surface 412, this fixedly projection 442 embed in this groove 441 and it be fixed together with fixed light source cover 43 and light guide plate 41.
See also Fig. 8, be the schematic cross-section of the utility model module the 4th embodiment backlight.The fixing structure 54 of this module 50 backlight and the difference of the first embodiment fixing structure 24 are: this fixing structure 54 comprises one, and to be formed in cross section on the exiting surface 512 from the dark gradually spill of incidence surface 511 be that the groove 541 and of right-angle triangle is formed on the light source cover 53 to be equipped with these groove 541 shapes and holds the elasticity catch mechanism 542 of fixing this groove 541, the another side clamping bottom surface 513 of this light source cover 53 is fixed together and this light source cover 53 and light guide plate 51 held.
See also Fig. 9 and Figure 10, Fig. 9 is the schematic cross-section of the utility model module the 5th embodiment backlight, and Figure 10 is the enlarged diagram of X part among Fig. 9.The difference of this module 60 backlight and first embodiment module 20 backlight is: it comprises that also a reflector plate 65 and that is arranged on bottom surface 613 sides is used to accommodate the framework 66 of light guide plate 61, light source 62, light source cover 63, fixing structure 64 and this reflector plate 65, and the part of the part of this light source cover 63 and this reflector plate 65 is superimposed; This fixing structure 64 comprises that one is arranged on shrinkage pool 641, on this bottom surface 613 and is arranged on through hole 642, on this light source cover 63 and is arranged on a middle through hole 643 and a gim peg 644 on this reflector plate 65, this shrinkage pool 641, this through hole 642 and this centre through hole 643 are corresponding mutually, and this gim peg 644 embeds these three holes is fixed together it to fix this light source cover 63 and light guide plate 61.
The light that this reflector plate 65 is used for penetrating from this bottom surface 613 is back in this light guide plate 61 and is utilized again, thereby can improve the emitting brightness of this module 60 backlight.This framework 66 is accommodated this light guide plate 61, this light source 62, this light source cover 63, this fixing structure 64 and this reflector plate 65 and is fixed in it, has further strengthened the steadiness of these module 60 structures backlight.
See also Figure 11, be the side view of the utility model module the 6th embodiment backlight.The difference of this module 70 backlight and first embodiment module 20 backlight is: it comprises that also one is arranged on the reflector plate 75 of bottom surface 713 sides, light guide plate 71 also comprises and incidence surface, all adjacent two relative side 714 of exiting surface 712 and bottom surface 713, the part of the part of light source cover 73 and this exiting surface 712, this reflector plate 75 and this two sides 714 is superimposed, and forms an enclosure space.Its fixing structure comprises that also the circular shrinkage hole, on this side 714 is arranged on this light source cover 73 and a corresponding circular through hole of this shrinkage pool and a gim peg 743, and this gim peg 743 embeds these through holes and this shrinkage pool is fixed together it to fix this light source cover 73 and light guide plate 71.
The enclosure space that forms between this light source cover 73 and this light guide plate 71 is completely enclosed within light source in it, make the light that sends from this light source directly or after reflection all be incident upon this incidence surface within it, conduct in this light guide plate 71 through this incidence surface, improved light utilization efficiency greatly.
It is described that module backlight of the present utility model is not limited to above-mentioned embodiment, can also be pointolite as this light source, as light emitting diode.
Claims (10)
1. module backlight comprises that light source and that a light guide plate, with incidence surface is arranged on this incidence surface side covers on the light source cover of this light source, and it is characterized in that: this module backlight also comprises the fixing structure of fixing this light source cover and this light guide plate.
2. module backlight as claimed in claim 1 is characterized in that: this light guide plate also comprises an exiting surface adjacent with this incidence surface and one and this exiting surface opposed bottom surface, and the part of the part of this light source cover and this exiting surface and this bottom surface is superimposed.
3. module backlight as claimed in claim 2, it is characterized in that: this fixing structure comprises that a shrinkage pool, that is arranged on this exiting surface is arranged on the gim peg that embeds this through hole and this shrinkage pool on this light source cover with the corresponding through hole of this shrinkage pool and, in order to fix this light source cover and light guide plate.
4. module backlight as claimed in claim 2, it is characterized in that: this fixing structure comprises that one is arranged on this light source cover and the corresponding through hole of this gim peg from the outwards outstanding gim peg and that forms of this exiting surface, and this gim peg embeds in this through hole to fix this light source cover and light guide plate.
5. module backlight as claimed in claim 2, it is characterized in that: this fixing structure comprises that one is formed on this light source cover and the corresponding fixedly projection of this groove from the cave inward groove and that forms of this exiting surface, this fixedly projection embed in this groove to fix this light source cover and light guide plate.
6. module backlight as claimed in claim 2 is characterized in that: this fixing structure comprises that a groove and that is formed on this exiting surface from the dark gradually spill of this incidence surface is formed on the elasticity catch mechanism that matches and fix this groove to hold with this groove shape on this light source cover.
7. module backlight as claimed in claim 1 is characterized in that: this module backlight comprises that also one is arranged on the reflector plate of this bottom surface side, and the part of this light source cover and the part of this reflector plate are superimposed.
8. module backlight as claimed in claim 7, it is characterized in that: this fixing structure comprises that one is arranged on through hole, on this light source cover and is arranged on middle through hole, on this reflector plate and is arranged on a shrinkage pool and a gim peg on this bottom surface, these three holes are corresponding mutually, and this gim peg embeds these three holes to fix this light source cover and light guide plate.
9. as module backlight as described in the claim 7, it is characterized in that: this fixing structure comprise one from this bottom surface the outwards outstanding gim peg, that forms is arranged on middle through hole and on this reflector plate and is arranged on through hole on this light source cover, this gim peg, this centre through hole and through hole are corresponding mutually, and this gim peg embeds this centre through hole and this through hole to fix this light source cover and light guide plate.
10. module backlight as claimed in claim 7, it is characterized in that: this light guide plate also comprises and this incidence surface, this bottom surface and all adjacent two sides of exiting surface, the part of the part of this light source cover and this exiting surface, this reflector plate and these two sides is superimposed, form an enclosure space, this fixing structure comprises that the shrinkage pool, on the side is arranged on the gim peg that embeds this through hole and this shrinkage pool on this light source cover with the corresponding through hole of this shrinkage pool and, in order to fix this light source cover and light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064409 CN2831180Y (en) | 2005-09-09 | 2005-09-09 | Backlight modular |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064409 CN2831180Y (en) | 2005-09-09 | 2005-09-09 | Backlight modular |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2831180Y true CN2831180Y (en) | 2006-10-25 |
Family
ID=37136108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520064409 Expired - Lifetime CN2831180Y (en) | 2005-09-09 | 2005-09-09 | Backlight modular |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2831180Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598297B (en) * | 2009-06-26 | 2011-08-10 | 达运精密工业（苏州）有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN102840521A (en) * | 2012-09-28 | 2012-12-26 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102086993B (en) * | 2009-12-04 | 2013-05-29 | 群康科技(深圳)有限公司 | Backlight module and liquid crystal display device using same |
| WO2013131297A1 (en) * | 2012-03-08 | 2013-09-12 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN106353849A (en) * | 2015-07-15 | 2017-01-25 | 南京瀚宇彩欣科技有限责任公司 | Backlight module and display device |
| CN109164635A (en) * | 2018-09-20 | 2019-01-08 | 厦门天马微电子有限公司 | Backlight module and its manufacturing method and display device |
| CN104464557B (en) * | 2013-09-24 | 2019-07-12 | 夏展敏 | A kind of edge shows the scheme integrated with liquid crystal display |
-
2005
- 2005-09-09 CN CN 200520064409 patent/CN2831180Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598297B (en) * | 2009-06-26 | 2011-08-10 | 达运精密工业（苏州）有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN102086993B (en) * | 2009-12-04 | 2013-05-29 | 群康科技(深圳)有限公司 | Backlight module and liquid crystal display device using same |
| WO2013131297A1 (en) * | 2012-03-08 | 2013-09-12 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN102840521A (en) * | 2012-09-28 | 2012-12-26 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102840521B (en) * | 2012-09-28 | 2015-06-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN104464557B (en) * | 2013-09-24 | 2019-07-12 | 夏展敏 | A kind of edge shows the scheme integrated with liquid crystal display |
| CN106353849A (en) * | 2015-07-15 | 2017-01-25 | 南京瀚宇彩欣科技有限责任公司 | Backlight module and display device |
| CN109164635A (en) * | 2018-09-20 | 2019-01-08 | 厦门天马微电子有限公司 | Backlight module and its manufacturing method and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150909 Granted publication date: 20061025 |
|
| EXPY | Termination of patent right or utility model |