CN203641997U - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN203641997U CN203641997U CN201320829636.8U CN201320829636U CN203641997U CN 203641997 U CN203641997 U CN 203641997U CN 201320829636 U CN201320829636 U CN 201320829636U CN 203641997 U CN203641997 U CN 203641997U
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- CN
- China
- Prior art keywords
- led lamp
- backlight module
- lamp bar
- backboard
- liquid crystal
- 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 - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 20
- 239000002390 adhesive tape Substances 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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Abstract
The utility model provides a backlight module and a liquid crystal display device and belongs to the technical field of backlight modules of liquid crystal display devices. The problem that LED lamp strips in existing backlight modules are poor in heat dissipation performance can be solved. The backlight module comprises an LED lamp strip and a backboard for supporting the LED lamp strip. One side of each LED lamp strip away from the emergency face comprises at least one protrusion, and one side of the backboard close to each LED lamp strip is provided with at least one groove. The protrusion of each LED lamp strip is matched with the groove of the backboard.
Description
Technical field
The utility model belongs to the technical field of LCD device backlight module, is specifically related to a kind of backlight module and liquid crystal indicator.
Background technology
As shown in Figure 1, 2, in the backlight module of liquid crystal indicator, LED lamp bar 11(LED lamp bar comprises: substrate and be arranged on the multiple LED lamps on substrate, is provided with the drive circuit of LED lamp on substrate) mode that adopts heat conduction adhesive tape 10 and backboard 12 to bond fixed.On the backboard of small-medium size, adopt the mode of heat conduction adhesive tape 10 fixed L ED lamp bars, because LED lamp bar 11 caloric values are little, can not produce significant impact to the luminous efficiency of heat radiation backlight and LED lamp bar 11, but, on large-sized backboard 12, due to factors such as LED lamp bar 11 power are high, caloric value is large, the existing mode by heat conduction adhesive tape 10 fixed L ED lamp bars can not meet the heat radiation of LED lamp bar 11 effectively, thereby inventor finds that this can directly cause lamp bar excess Temperature to affect the luminous efficiency of LED lamp bar 11.
Utility model content
Technical problem to be solved in the utility model comprises, for the problem of the weak heat-dissipating of the LED lamp bar in existing backlight module, provides a kind of heat dispersion of the LED of raising lamp bar and backlight module and the liquid crystal indicator of luminous efficiency.
The technical scheme that solution the utility model technical problem adopts is a kind of backlight module, comprise LED lamp bar and for supporting the backboard of LED lamp bar, the side that described LED lamp bar deviates from its exiting surface comprises at least one projection, described backboard comprises at least one groove near a side of LED lamp bar, wherein, the projection of described LED lamp bar and the groove of described backboard cooperatively interact.
The projection of the LED lamp bar of backlight module of the present utility model and the groove of backboard cooperatively interact, to reach the location of backboard and LED lamp bar.Now, exiting surface one side that deviates from of LED lamp bar directly contacts with backboard, without make LED lamp bar and backboard location by heat conduction adhesive tape, what those skilled in the art were easy to the imagination is, LED lamp bar contacts with backboard, LED lamp bar is obviously little to the thermal resistance on heat conduction adhesive tape than LED lamp to the thermal resistance on backboard, and then the heat-sinking capability of LED lamp bar is strengthened, and has extended the service life of LED lamp simultaneously.Briefly, backboard adopts metal material conventionally, and the heat conductivility of metal is than the good heat conductivity of colloidal materials, and LED lamp bar contacts heat radiation better with backboard thus.
Preferably, described LED lamp bar deviates from exiting surface a side and backboard fit.
Preferably, the side that described LED lamp bar deviates from its exiting surface comprises multiple projections, and described backboard comprises multiple grooves near a side of LED lamp bar.
Preferably, in the gap between projection and the groove of described backboard of described LED lamp bar, be filled with auxiliary adhesive tape.
Preferably, the projection of described LED lamp bar is wedge structure, and the groove of described backboard is wedge-shaped slot.
Preferably, described backlight module also comprises LGP, and is arranged at the reflector plate that deviates from described LGP exiting surface side-lower.
Preferably, described backlight module also comprises multi-layer optical membrane, and described blooming piece is arranged on the exiting surface of described LGP.
Preferably, described backlight module also comprises glue frame, front frame, and described glue frame is for stationary backplate and front frame.
The technical scheme that solution the utility model technical problem adopts is a kind of liquid crystal indicator, and it comprises above-mentioned backlight module.
Because liquid crystal indicator of the present utility model comprises above-mentioned backlight module, therefore its display effect is better.
Preferably, described liquid crystal indicator also comprises liquid crystal panel.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing backlight module;
Fig. 2 is the schematic diagram of the LED lamp bar in existing backlight module;
Fig. 3 is the schematic diagram of the backlight module of embodiment 1 of the present utility model;
Fig. 4 is the A-A sectional view of the schematic diagram of the backlight module of the embodiment 1 based on utility model;
Fig. 5 is the schematic diagram of the LED lamp bar one side of the backlight module of embodiment 1 of the present utility model; And,
Fig. 6 is the schematic diagram of the LED lamp bar another side of the backlight module of embodiment 1 of the present utility model.
Wherein Reference numeral is: 10, heat conduction adhesive tape; 11, LED lamp bar; 12, backboard; 13, LGP; 14, reflector plate; 15, blooming piece; 16, glue frame; 17, front frame; 18, projection; 19, groove; 20, auxiliary adhesive tape.
The specific embodiment
For making those skilled in the art understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
The present embodiment provides a kind of backlight module, as shown in Figures 3 to 6, it comprises: LED lamp bar 11 and for supporting the backboard 12 of LED lamp bar 11, the side that described LED lamp bar 11 deviates from its exiting surface comprises at least one projection 18, described backboard 12 comprises at least one groove 19 near a side of LED lamp bar 11, wherein, the projection 18 of described LED lamp bar 11 cooperatively interacts with the groove 19 of described backboard 12.
The projection 18 of the LED lamp bar 11 of the backlight module that the present embodiment provides cooperatively interacts with the groove 19 of backboard 12, to reach the location of backboard 12 and LED lamp bar 11.Now, exiting surface one side that deviates from of LED lamp bar 11 directly contacts with backboard 12, locate without make LED lamp bar 11 and backboard 12 by heat conduction adhesive tape, what those skilled in the art were easy to the imagination is, LED lamp bar 11 contacts with backboard 12, LED lamp bar 11 is obviously little to the thermal resistance on heat conduction adhesive tape than LED lamp to the thermal resistance on backboard 12, and then the heat-sinking capability of LED lamp bar 11 is strengthened, and has greatly improved the luminous efficiency of LED lamp simultaneously.Briefly, backboard 12 adopts metal material conventionally, and the heat conductivility of metal is than the good heat conductivity of colloidal materials, and LED lamp bar 11 contacts heat radiation better with backboard 12 thus.
In order to make LED lamp bar 11 more firm with the location of backboard 12, preferably, the side that the LED lamp bar 11 of the backlight module that the present embodiment provides deviates from its exiting surface comprises multiple protruding 18, described backboard 12 comprises multiple grooves 19 near a side of LED lamp bar 11, the projection 18 of LED lamp bar 11 cooperatively interacts with the groove 19 of backboard 12, and then makes the location of LED lamp bar 11 and backboard 12.Certainly the projection 18 of LED lamp bar 11 also can be one with the groove 19 of backboard 12, as long as can reach the effect that both locate mutually.
The backlight module of the present embodiment can also be further preferably, and the position of multiple grooves 19 of multiple protruding 18 position of LED lamp bar 11 and described backboard 12 is all corresponding with the position of the LED lamp of described LED lamp bar 11.Certainly be also not limited to this position.
In order to make LED lamp bar 11 and backboard 12 better fixing, the backlight module of the present embodiment preferably, is filled with auxiliary adhesive tape 20 in the gap that the projection of LED lamp bar 11 18 and the groove 19 of backboard 12 are cooperatively interacted.So that better fixed L ED lamp bar 11 and backboard 12.If what the projection 18 of LED lamp bar 11 and the groove 19 of backboard 12 cooperatively interacted certainly is relative perfect, also without filling auxiliary adhesive tape 20.
Preferably, the projection 18 of the LED lamp bar 11 of the backlight module of the present embodiment is wedge structure, and the groove 19 of backboard 12 is wedge-shaped slot, and both adopt wedge-like engagement.Increase the fitting area of projection and groove, improve radiating efficiency.LED lamp bar 11 is unfixing with the shape of backboard 12, as long as both cooperatively interact and reach the effect that both locate mutually.The projection 18 of for example saying LED lamp bar 11 is rectangular structure, and the groove 19 of backboard 12 is rectangular slot etc.
Preferably, the backlight module of the present embodiment also comprises LGP 13, and is arranged at the reflector plate 14 that deviates from described LGP 13 exiting surface side-lowers.Wherein reflector plate 14 can reflect LGP 13 by the light of the dispersion of LED lamp bar 11, and then improves the utilization rate of the light of LED lamp bar 11.
Preferably, the backlight module of the present embodiment also comprises multi-layer optical membrane 15, and described blooming piece 15 is arranged on the exiting surface of described LGP 13.Wherein blooming piece is diffusion barrier, prism film etc.
Preferably, the backlight module of the present embodiment also comprises the back light module group such as glue frame 16, front frame 17, similar with conventional back light module group, is not illustrated at this.
Embodiment 2:
The present embodiment provides a kind of liquid crystal indicator, and it comprises the backlight module described in embodiment 1.This liquid crystal indicator can be: any product or parts with Presentation Function such as mobile phone, panel computer, television set, display, notebook computer, DPF, navigator.
Because the liquid crystal indicator of the present embodiment comprises the backlight module in embodiment 1, therefore its display effect is better, applicability is stronger.
Certainly this liquid crystal indicator also comprises other conventional structures such as liquid crystal panel, as power subsystem, display driver unit etc.
Be understandable that, above embodiment is only used to principle of the present utility model is described and the illustrative embodiments that adopts, but the utility model is not limited to this.For those skilled in the art, in the situation that not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (10)
1. a backlight module, it comprises: LED lamp bar and for supporting the backboard of LED lamp bar, it is characterized in that, the side that described LED lamp bar deviates from its exiting surface comprises at least one projection, described backboard comprises at least one groove near a side of LED lamp bar, wherein, the projection of described LED lamp bar and the groove of described backboard cooperatively interact.
2. backlight module according to claim 1, is characterized in that, a side and backboard that described LED lamp bar deviates from exiting surface fit.
3. backlight module according to claim 1, is characterized in that, the side that described LED lamp bar deviates from its exiting surface comprises multiple projections, and described backboard comprises multiple grooves near a side of LED lamp bar.
4. backlight module according to claim 1, is characterized in that, in the gap between projection and the groove of described backboard of described LED lamp bar, is filled with auxiliary adhesive tape.
5. backlight module according to claim 1, is characterized in that, the projection of described LED lamp bar is wedge shape, and the groove of described backboard is wedge-shaped slot.
6. backlight module according to claim 1, is characterized in that, described backlight module also comprises LGP, and is arranged at the reflector plate that deviates from described LGP exiting surface side-lower.
7. backlight module according to claim 6, is characterized in that, described backlight module also comprises multi-layer optical membrane, and described blooming piece is arranged on the exiting surface of described LGP.
8. backlight module according to claim 1, is characterized in that, described backlight module also comprises glue frame, front frame, and described glue frame is for stationary backplate and front frame.
9. a liquid crystal indicator, is characterized in that, comprises the backlight module as described in any one in claim 1～8.
10. liquid crystal indicator according to claim 9, is characterized in that, described liquid crystal indicator also comprises liquid crystal panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829636.8U CN203641997U (en) | 2013-12-16 | 2013-12-16 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829636.8U CN203641997U (en) | 2013-12-16 | 2013-12-16 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641997U true CN203641997U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320829636.8U Expired - Fee Related CN203641997U (en) | 2013-12-16 | 2013-12-16 | Backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641997U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016078280A1 (en) * | 2014-11-20 | 2016-05-26 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
| CN105652359A (en) * | 2015-11-06 | 2016-06-08 | 乐视致新电子科技（天津）有限公司 | Light guide module group and display apparatus comprising the light guide module group |
| CN109493731A (en) * | 2018-12-19 | 2019-03-19 | 友达光电股份有限公司 | Backlight module |
-
2013
- 2013-12-16 CN CN201320829636.8U patent/CN203641997U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016078280A1 (en) * | 2014-11-20 | 2016-05-26 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
| US9851494B2 (en) | 2014-11-20 | 2017-12-26 | Boe Technology Group Co., Ltd. | Backlight module and liquid crystal display apparatus |
| CN105652359A (en) * | 2015-11-06 | 2016-06-08 | 乐视致新电子科技（天津）有限公司 | Light guide module group and display apparatus comprising the light guide module group |
| WO2017076008A1 (en) * | 2015-11-06 | 2017-05-11 | 乐视控股（北京）有限公司 | Light guide module and display device comprising light guide module |
| CN109493731A (en) * | 2018-12-19 | 2019-03-19 | 友达光电股份有限公司 | Backlight module |
| CN109493731B (en) * | 2018-12-19 | 2020-12-08 | 友达光电股份有限公司 | Backlight Module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 |
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| CF01 | Termination of patent right due to non-payment of annual fee |