CN201819150U - Light source reflector and back light module - Google Patents
Light source reflector and back light module Download PDFInfo
- Publication number
- CN201819150U CN201819150U CN2010205414689U CN201020541468U CN201819150U CN 201819150 U CN201819150 U CN 201819150U CN 2010205414689 U CN2010205414689 U CN 2010205414689U CN 201020541468 U CN201020541468 U CN 201020541468U CN 201819150 U CN201819150 U CN 201819150U
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- light source
- source reflecting
- support arm
- reflecting housing
- lower support
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- 210000003141 lower extremity Anatomy 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 description 27
- 230000005855 radiation Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a light source reflector and a back light module adopting the light source reflector. The light source reflector comprises a side wall, an upper cantilever and a lower supporting arm, wherein the side wall is used for installing an LED (Light Emitting Diode) lamp panel, the upper cantilever is connected with the upper edge of the side wall, the lower supporting arm is connected with the lower edge of the side wall, the upper cantilever and the lower supporting arm are positioned at the same side of the side wall and form a C-shaped structure with the side wall, and the lower supporting arm is provided with a plurality of gaps. In the light source reflector and the back light module provided by the utility model, because the lower supporting arm is provided with the plurality of gaps, the material of the light source reflector is reduced so as to save the cost of the light source reflector; and meanwhile, the light source reflector enables the heat generated by an LED wafer which is installed on the side wall and faces the opening direction of the C-shaped structure to quickly dissipate, thus lowering the zone temperature of the LED wafer installed on the LED lamp panel, preventing an optical diaphragm in the back light module from deforming because of heating expansion, and preventing the picture effect of a liquid crystal display device from being influenced.
Description
Technical field
The utility model relates to technical field of liquid crystal display, particularly a kind of light source reflecting housing and module backlight.
Background technology
In recent years, along with the fast development of flat panel display, LCD is because of having that volume is little, in light weight, image quality is high and driving voltage is low etc. that advantage is widely used in various information, communication and the consumer products.
In display panels, because liquid crystal itself does not have the characteristics of luminescence, thereby, for adjusting the display brightness of LCD, need provide a backlight to display panels.Fast development along with backlight technology in the module backlight, light emitting diode (Light-Emitting Diode, LED) backlight progressively enters industrialization, thereby (Cold Cathode Fluorescent Lamp CCFL) becomes the main flow of backlight in the module backlight to replace cathode fluorescent tube gradually.
Module backlight generally comprises frame and is fixed in LGP, the backlight in the frame and is installed in blooming piece on the LGP; Blooming piece comprises several layer films, and wherein, blooming piece can comprise multiple films such as following diffusion sheet, prismatic lens and last diffusion sheet.In module backlight,, adopt light source reflecting housing as shown in Figure 1 that the light that does not directly enter LGP that backlight sends is entered LGP inside usually after reflecting in order to effectively utilize the intensity of illumination of backlight more.Figure 1 shows that the structural representation of conventional lighting sources reflector.As shown in Figure 1, the conventional lighting sources reflector comprises sidewall 101, upper cantilever 102 that links to each other with sidewall 101 top edges and the lower support arm 103 that links to each other with sidewall 101 lower limbs, upper cantilever 102 and lower support arm 103 are positioned at the homonymy of sidewall 101, wherein, the sidewall 101 of light source reflecting housing, upper cantilever 102 and lower support arm 103 form a C type structure.
In conventional lighting sources reflector and module backlight as shown in Figure 1, be installed on the sidewall 101 of light source reflecting housing as the LED lamp plate of backlight, the light emission direction of LED lamp onboard led wafer is towards the opening direction of C type structure.As shown in Figure 1, in the conventional lighting sources reflector, therefore its upper cantilever 102, sidewall 101 and lower support arm 103 need more material owing to adopt the integrated entity structure, and its cost of manufacture is than higher.Simultaneously, be positioned at the inside of light source reflecting housing as the LED lamp plate of backlight, the luminous heat that distributes of LED wafer that is installed on the LED lamp plate can not in time dispel the heat owing to the effect of blocking of reflector, thereby the regional temperature that can cause being installed in LED lamp onboard led wafer raises, even can cause blooming piece expanded by heating used in the module backlight and deform, thereby influence the picture effect of liquid crystal indicator.
The utility model content
In view of this, light source reflecting housing adopts the integrated entity structure and causes the more material of needs in the prior art in order to solve, its cost of manufacture is higher, and LED lamp onboard led wafer is difficult for heat radiation and causes blooming piece temperature distortion used in the module backlight in the light source reflecting housing, thereby influence the problem of liquid crystal indicator picture effect, the utility model provides a kind of new can save material and cost of manufacture thereof, can make light source reflecting housing that is installed in the LED wafer efficiently radiates heat on the light source reflecting housing sidewall and the module backlight that adopts this light source reflecting housing simultaneously.
Purpose light source reflecting housing in the utility model comprises the sidewall in order to installing LED lamp plate, a upper cantilever that links to each other with described sidewall top edge, the support arm once that links to each other with described sidewall lower limb, and described upper cantilever and described lower support arm are positioned at the homonymy of described sidewall, it is characterized in that, on described lower support arm edge, offer a plurality of breach.
Preferably, the upper cantilever of the light source reflecting housing in the utility model, sidewall and lower support arm form C type structure.
Preferably, the gap between the adjacent LED wafer is relative on the breach on the lower support arm edge of the light source reflecting housing in the utility model and the described LED lamp plate.
Preferably, the breach on the lower support arm edge of the light source reflecting housing in the utility model is elongated.
Preferably, the breach on the lower support arm edge of the light source reflecting housing in the utility model is perpendicular to the edge distribution of lower support arm.
Preferably, also offer a plurality of breach on the upper cantilever of the light source reflecting housing in the utility model.
Preferably, the breach on the upper cantilever of the light source reflecting housing in the utility model is corresponding one by one with a plurality of breach quantity, position on the lower support arm.
Of the present utility modelly also provide a kind of module backlight, this module backlight comprises frame, be fixed in LGP, the backlight in the frame and be installed in blooming piece on the LGP, and this module backlight also comprises aforesaid light source reflecting housing.
As seen from the above technical solutions, light source reflecting housing that is provided in the utility model and module backlight, by on the lower support arm of light source reflecting housing, offering a plurality of breach, thereby reduced the material of light source reflecting housing, saved material cost, can make simultaneously and be installed in the light source reflecting housing sidewall and leave apace towards the heat that the LED lamp plate of C type structural openings direction produces, thereby reduced the regional temperature that is installed in LED lamp onboard led wafer, simultaneously also avoided including blooming piece used in the module backlight of above-mentioned light source reflecting housing and deformation has taken place, therefore avoided influence the picture effect of liquid crystal indicator because of expanded by heating.
Description of drawings
Fig. 1 is the structural representation of conventional lighting sources reflector.
Fig. 2 is the structural representation of light source reflecting housing among the utility model first embodiment.
Fig. 3 is the structural representation of light source reflecting housing among the utility model second embodiment.
The specific embodiment
For make the purpose of this utility model, technical scheme, and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
At light source reflecting housing provided by the utility model and comprise in the module backlight of this light source reflecting housing, offer a plurality of breach on the lower support arm that light source reflecting housing comprises, thereby reduced the material of light source reflecting housing, saved material cost, make the heat that is installed in the LED lamp plate generation on the light source reflecting housing sidewall can can't not distribute faster simultaneously owing to stopping of light source reflecting housing, improved the radiating efficiency of light source reflecting housing, reduced the temperature that is positioned at LED lamp plate near zone, because of expanded by heating deformation taking place thereby also can avoid including blooming piece used in the module backlight of above-mentioned light source reflecting housing, and then has avoided the influence to the liquid crystal indicator picture effect.Gap position on the light source reflecting housing lower support arm can be corresponding with the gap between adjacent two LED wafers on the LED lamp plate, and the heat that can quickly the LED wafer be produced distributes.
Fig. 2 is the structural representation of light source reflecting housing among the utility model first embodiment.Now in conjunction with Fig. 2, the structure of light source reflecting housing among the utility model first embodiment is described, specific as follows:
Light source reflecting housing is the lengthwise shape, and it comprises that one forms sidewall 201, upper cantilever 202 and the lower support arm 203 of C type structure.When the assembling of module backlight, with the LED lamp plate from pack into the inside of light source reflecting housing of the opening part of light source reflecting housing C type structure, the wiring board of LED lamp plate is installed on the sidewall 201 of light source reflecting housing shown in Figure 2, wherein, the light emission direction of LED lamp onboard led wafer is towards the opening direction of C type structure.Be installed in and be equiped with a plurality of LED wafers on the LED lamp plate on the light source reflecting housing sidewall 201, have the gap between per two adjacent LED wafers.
In the present embodiment, the lower support arm 203 that light source reflecting housing comprises offers a plurality of breach 204 in its edge, the position of each breach 204 be installed in light source reflecting housing sidewall 201 on the LED lamp plate on gap between the two adjacent LED wafers corresponding, that is to say on the LED lamp plate on the lower support arm 203 breach 204 corresponding positions with light source reflecting housing the LED wafer is not set.In the light source reflecting housing of present embodiment, breach 204 can along lower support arm 203 uniformly-spaced or unequal interval ground arrange.Preferably, be opened on the lower support arm 203 204 one-tenth strips of breach and perpendicular to the edge of the lower support arm 203 of light source reflecting housing.
Because LED lamp onboard led wafer single face is luminous, its light emission direction is towards the opening direction of light source reflecting housing C type structure, not having breach with the corresponding position of LED wafer on light source reflecting housing lower support arm 203 exists, therefore, be arranged on the lower support arm 203 of light source reflecting housing and the corresponding breach 204 in space does not influence light source reflecting housing between the LED lamp plate two adjacent LED wafers reflecting effect, simultaneously, the breach 204 that is provided with on the lower support arm 203 of light source reflecting housing makes that the heat-dissipating space around the single led wafer is more sufficient on the LED lamp plate, even be positioned at the LED wafer region in LED lamp plate centre position, just distribute heat is than the zone of comparatively dense, single LED wafer also has enough spaces and dispels the heat, thereby make that the cross-ventilation of LED wafer is more effective, improved radiating efficiency.Meanwhile, light source reflecting housing has certain conduction of heat, thereby this just makes the heat radiation of LED wafer make that more evenly the radiating effect of LED lamp plate is effective more fast.In addition, compare with the conventional lighting sources reflector, light source reflecting housing of the present utility model is offered a plurality of breach 204 by the edge at lower support arm 203, and it has further saved the employed material of light source reflecting housing, has reduced cost.
Fig. 3 is the structural representation of light source reflecting housing among the utility model second embodiment.Now in conjunction with Fig. 3, the structure of light source reflecting housing among the utility model second embodiment is described, specific as follows:
In the present embodiment, light source reflecting housing is based on the structure of the light source reflecting housing of first embodiment shown in Figure 2, and further the edge at the upper cantilever 301 of light source reflecting housing offers a plurality of breach 305; Wherein, it is corresponding one by one with a plurality of breach 304 positions on the light source reflecting housing lower support arm 303 to be opened in a plurality of breach 305 of upper cantilever 301.Because LED lamp onboard led wafer single face is luminous, its light-emitting area is towards the opening direction of light source reflecting housing C type structure, not having breach with the corresponding position of LED wafer on light source reflecting housing upper cantilever 301, lower support arm 303 exists, therefore, be arranged on the upper cantilever 301, lower support arm 303 of light source reflecting housing and the corresponding breach 305,304 in space does not influence light source reflecting housing between the LED lamp plate two adjacent LED wafers reflecting effect.A plurality of breach 305 on the upper cantilever 301 can along upper cantilever 301 uniformly-spaced or unequal interval ground arrange, a plurality of breach 304 on the lower support arm 303 can be along lower support arm 303 uniformly-spaced or the arrangement of unequal interval ground.Preferably, be opened on upper cantilever 301, the lower support arm 303 204 one-tenth strips of a plurality of breach and perpendicular to upper cantilever 301, the lower support arm 203 of light source reflecting housing.
Compare with first embodiment, the breach 304 that breach 305 that the upper cantilever 302 that light source reflecting housing comprises among second embodiment of the present utility model is offered and lower support arm 303 are offered has further reduced the material of light source reflecting housing, saved material cost, help simultaneously cross-ventilation more, thereby help the heat radiation of LED wafer more, and can make that the heat radiation of LED wafer is more even.
In sum, be preferred embodiment of the present utility model more than, be not to be used for limiting protection domain of the present utility model.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. light source reflecting housing comprises:
Sidewall in order to installing LED lamp plate;
A upper cantilever that links to each other with described sidewall top edge;
The support arm once that links to each other with described sidewall lower limb;
And described upper cantilever and described lower support arm are positioned at the homonymy of described sidewall;
It is characterized in that, on described lower support arm edge, offer a plurality of breach.
2. light source reflecting housing according to claim 1 is characterized in that,
Described upper cantilever, sidewall and lower support arm form C type structure.
3. light source reflecting housing according to claim 2 is characterized in that, the gap on the breach on the described lower support arm edge and the described LED lamp plate between the adjacent LED wafer is relative.
4. light source reflecting housing according to claim 3 is characterized in that, the breach on the described lower support arm edge is elongated.
5. light source reflecting housing according to claim 4 is characterized in that, the breach on the described lower support arm edge is perpendicular to the edge distribution of lower support arm.
6. according to each described light source reflecting housing in the claim 1 to 5, it is characterized in that, also offer a plurality of breach on the described upper cantilever.
7. light source reflecting housing according to claim 6 is characterized in that, the breach on the described upper cantilever is corresponding one by one with a plurality of breach quantity, position on the lower support arm.
8. a module backlight comprises frame, is fixed in frame interior LGP, backlight, is installed in the blooming piece on the LGP, it is characterized in that this module backlight also comprises as each described light source reflecting housing among the claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205414689U CN201819150U (en) | 2010-09-21 | 2010-09-21 | Light source reflector and back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205414689U CN201819150U (en) | 2010-09-21 | 2010-09-21 | Light source reflector and back light module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201819150U true CN201819150U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205414689U Expired - Lifetime CN201819150U (en) | 2010-09-21 | 2010-09-21 | Light source reflector and back light module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201819150U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606952A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华星光电技术有限公司 | Reflective incidence backlight module and liquid crystal display device |
| WO2012155363A1 (en) * | 2011-05-19 | 2012-11-22 | 深圳市华星光电技术有限公司 | Led light source structure and backlight module |
| 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 |
| WO2013181858A1 (en) * | 2012-06-06 | 2013-12-12 | 深圳市华星光电技术有限公司 | Positioning structure of optical component, liquid crystal display device, and manufacturing method therefor |
| CN103900029A (en) * | 2012-12-28 | 2014-07-02 | 鑫成科技(成都)有限公司 | Reflecting part, backlight module with reflecting part, and display device |
| US8845171B2 (en) | 2011-05-19 | 2014-09-30 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED light-source structure and backlight module |
-
2010
- 2010-09-21 CN CN2010205414689U patent/CN201819150U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155363A1 (en) * | 2011-05-19 | 2012-11-22 | 深圳市华星光电技术有限公司 | Led light source structure and backlight module |
| US8845171B2 (en) | 2011-05-19 | 2014-09-30 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED light-source structure and backlight module |
| CN102606952A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华星光电技术有限公司 | Reflective incidence backlight module and liquid crystal display device |
| WO2013181858A1 (en) * | 2012-06-06 | 2013-12-12 | 深圳市华星光电技术有限公司 | Positioning structure of optical component, liquid crystal display device, and manufacturing method therefor |
| 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 |
| CN103900029A (en) * | 2012-12-28 | 2014-07-02 | 鑫成科技(成都)有限公司 | Reflecting part, backlight module with reflecting part, and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301 No. 1, Longteng Road, Kunshan, Jiangsu Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301 No. 1, Longteng Road, Kunshan, Jiangsu Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |