CN204405995U - A kind of direct-light type LED backlight module and liquid crystal display - Google Patents
A kind of direct-light type LED backlight module and liquid crystal display Download PDFInfo
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- CN204405995U CN204405995U CN201420523027.4U CN201420523027U CN204405995U CN 204405995 U CN204405995 U CN 204405995U CN 201420523027 U CN201420523027 U CN 201420523027U CN 204405995 U CN204405995 U CN 204405995U
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- reflector plate
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- backlight module
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 15
- 238000005452 bending Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004446 light reflex Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Abstract
The utility model discloses a kind of direct-light type LED backlight module and liquid crystal display, LED-backlit module comprises backboard, be arranged at the reflector plate for folded light beam on backboard, and be positioned at above described reflector plate, be fixedly connected with described backboard, for spreading the diffuser plate of light beam, on described reflector plate, the side relative with described diffuser plate is provided with plurality of LEDs light source, described backboard bottom margin place upwards turns up and forms backboard sidewall, it is characterized in that, described reflector plate bottom margin is sentenced round and smooth radian and is upwards bent, formed and be used for the uniform reflector plate side of beam reflection, described reflector plate side is fixedly installed on described backboard sidewall.Adopt the utility model that reflector plate side folded light beam can be made even, other positions of its brightness, color and screen are consistent, no longer need to print diffuser plate, reflector plate need not processed many line of weakness, greatly reduce production cost and the assembly difficulty of equipment, drastically increase production and efficiency of assembling.
Description
Technical field
The utility model relates to a kind of light source module field, in particular a kind of LED-backlit module and liquid crystal display.
Background technology
Along with the development of electronic display technology, LED liquid crystal television is commercially popularized.Wherein LED-backlit module is divided into direct-light type LED backlight module and side entering-type LED backlight module usually.Due to the cost advantage of straight-down negative, straight-down negative LED machine replaces side gradually and enters LED light source machine.The advantage of side entering type LED is that thickness can be accomplished thinner, and straight-down negative LED machine is in order to thickness thinning, solves lamp shadow problem, except setting up LED lens, also needs printing net-point on diffuser plate to solve lamp shadow and surrounding bright border problem further.The improvement of lens can solve lamp shadow problem, but surrounding bright border, dark side, or the printing net-point of bright dark excessive uneven problem also handy diffuser plate solves.As shown in Figure 1, current straight-down negative type reflector plate 210 is provided with line of weakness 212 in surrounding, during assembling, as shown in Figure 2, make bottom it and side is certain rigid angle along line of weakness 212 is folding, due to the existence of this angle, the light beam of LED light source 213 changes greatly at this position reflection angle, causes the obviously inconsistent of brightness and color.The program need rely on the larger printing diffuser plate 311 of cost, and needs the line of weakness processing more, the longer dimension of quantity in reflector plate 210 production run, therefore, its production and processing and installation effectiveness relatively low.
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of direct-light type LED backlight module and liquid crystal display, because reflector plate side adopts the structure of round and smooth cambered surface, folded light beam is uniformly distributed, no longer rely on printing diffuser plate, do not need processed many line of weakness when producing reflector plate, reduce cost and produce the difficulty of assembling yet.
The technical solution of the utility model is as follows:
A kind of direct-light type LED backlight module, comprise backboard, be arranged at the reflector plate for folded light beam on backboard, and be positioned at above described reflector plate, with described backboard and be fixedly connected with, for spreading the diffuser plate of light beam, on described reflector plate, the side relative with described diffuser plate be provided with plurality of LEDs light source, described backboard bottom margin place upwards turns up and forms backboard sidewall, wherein, described reflector plate bottom margin is sentenced round and smooth radian and is upwards bent, formed and be used for the uniform reflector plate side of beam reflection, described reflector plate side is fixedly installed on described backboard sidewall.
Direct-light type LED backlight module, wherein, described reflector plate is rectangle, and described reflector plate side comprises the first reflector plate side being positioned at described reflection length of a film limit, and is positioned at the second reflector plate side of described reflector plate minor face.
Direct-light type LED backlight module, wherein, described first reflector plate side and described second reflector plate side joint are provided with the shear line for cutting, and the line of weakness for bending.
Direct-light type LED backlight module, wherein, described backboard sidewall edge place is also provided with the backboard extension bent in the horizontal direction, and described diffuser plate is fixedly installed in surface, described backboard extension.
Direct-light type LED backlight module, wherein, described reflector plate sidewall edge place is also provided with the reflector plate extension bent in the horizontal direction, and described reflector plate extension is positioned between described backboard extension and described diffuser plate.
Direct-light type LED backlight module, wherein, described reflector plate sidewall edge is concordant with the seamed edge that described backboard extension bends.
A kind of liquid crystal display, comprises LCDs, the display casing be fixedly connected with described LCDs, wherein, also comprises above-described direct-light type LED backlight module.
Liquid crystal display, wherein, described backboard sidewall is plane.
Liquid crystal display, wherein, described backboard sidewall is curved surface.
Direct-light type LED backlight module provided by the utility model and liquid crystal display, because backlight module have employed the design that reflector plate side and bottom are round and smooth radian, make reflector plate side folded light beam even, its brightness and color and other positions of screen are consistent, common diffuser plate and reflector plate is adopted no longer to need too much line of weakness, greatly reduce production cost and the assembly difficulty of equipment, drastically increase production and efficiency of assembling.
Accompanying drawing explanation
Fig. 1 is the vertical view of reflector plate in prior art.
Fig. 2 is the wiring layout of LED-backlit module in prior art.
Fig. 3 is the wiring layout of a kind of direct-light type LED backlight module of the utility model preferred embodiment.
Fig. 4 is the vertical view of reflector plate in the preferred embodiment of a kind of direct-light type LED backlight module of the utility model.
Fig. 5 is the vertical view of reflector plate in a kind of another preferred embodiment of direct-light type LED backlight module of the utility model.
Fig. 6 is the structural drawing of a kind of liquid crystal display preferred embodiment of the utility model.
Embodiment
The utility model provides a kind of direct-light type LED backlight module and display, for making the purpose of this utility model, technical scheme and effect clearly, clearly, further describes the utility model referring to accompanying drawing examples.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
A kind of direct-light type LED backlight module that the utility model provides, as shown in Figure 3, comprise backboard 110, be arranged at the reflector plate 210 on backboard 110, and the diffuser plate 310 be arranged at above reflector plate 210, described backboard bottom margin is upwards turned up, form backboard sidewall 111, described reflector plate 210 is provided with plurality of LEDs light source 213, wherein, described reflector plate 210 bottom margin is sentenced a round and smooth radian and is bent upwards, and form reflector plate side 211, reflector plate side end is fixedly installed on backboard sidewall 111.
Adopt such structure, reflector plate side and reflector plate 210 bottom attachment locations is made to be smooth circular arc camber, instead of along the rigid angle that line of weakness bends, the light beam irradiation that LED light source 213 bottom reflector plate 210 sends is on the reflector plate side 211 of this section of circular arc camber, uniform light reflexes on diffuser plate 310, through the interference effect of diffuser plate 310, its color of light beam and the brightness that are finally irradiated to any position on screen will be relatively uniform, the phenomenons such as the amount of there will not be band black surround.
Further, as shown in Figure 4, reflector plate 210 is rectangle, the side, long limit of reflector plate 210 rectangle is provided with the first reflector plate side 2111, minor face side is provided with the second reflector plate side 2112, is provided with shear line 214 and line of weakness 212 in the corner that the first reflector plate 2111 docks with the second reflector plate 2112.When assembling, along shear line 214, joint is cut off, after first reflector plate side 2111 and the second reflector plate 2112 are bent to curved surface, its joint folds along line of weakness 212, line of weakness 212 is overlapped with shear line 214, again shear line 214 is arranged on the rear, gap of docking with the partial fixing in the middle of line of weakness 212, prevents joint gap excessive and occur light leakage phenomena.
Further, as shown in Figure 3, backboard sidewall 111 edge is also provided with the backboard extension 112 of surface level, and the edge of diffuser plate 310 is fixed on described backboard extension 112, and its surface, dorsulum extension 112 is parallel with diffuser plate 310 surface.Reflector plate side 211 edge is provided with the reflector plate extension 215 of surface level equally as shown in Figure 5, and described reflector plate extension 215 is arranged between diffuser plate 310 and backboard extension 112.Such design, can make light beam reflect at reflecting piece extension 215 place, prevents backboard extension 112 from designing longer type screen perimeter and there will not be dark side.
Preferably, in another embodiment, reflector plate side 211 edge is concordant with the broken line of backboard extension 112 horizontal buckling, in the present embodiment, shorter type is designed for backboard extension 112, light beam can reflex to diffuser plate 310 periphery under the effect of reflector plate side 211 curved reflecting surface, and reflector plate side 211 does not add reflector plate extension 215.
Based on the description of above-described embodiment, the utility model also proposes a kind of liquid crystal display, comprises LCDs, the display casing be fixedly connected with described LCDs, and above-described direct-light type LED backlight module.
Further, backboard sidewall 111 according to display casing shape and size, can be set to as shown in Figure 6 be the mode that rigid angle is turned up by line of weakness, also can be set to the structure of circular arc camber as shown in Figure 3.If the display housing being provided with this backlight module is the square structure of rigid angle, then backboard sidewall 111 adopts and turns up mode as Fig. 6 along line of weakness, if shell is fillet structure, then adopts circular arc camber structure as shown in Figure 3.Adopt such structural design, backboard module can be made to agree with mutually with shell shape, save display interior space.
Direct-light type LED backlight module provided by the utility model and display, owing to have employed the design that reflector plate side and bottom are round and smooth radian, make reflector plate side folded light beam even, its brightness and color and other positions of screen are consistent, common diffuser plate and reflector plate is adopted no longer to need too much line of weakness, greatly reduce production cost and the assembly difficulty of equipment, drastically increase production and efficiency of assembling.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills; can be improved according to the above description or be converted; change the curvature of reflecting piece side circular arc camber or the existing reference position etc. for reflector plate bottom bend, all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (9)
1. a direct-light type LED backlight module, comprise backboard, be arranged at the reflector plate for folded light beam on backboard, and be positioned at above described reflector plate, be fixedly connected with described backboard, for spreading the diffuser plate of light beam, on described reflector plate, the side relative with described diffuser plate is provided with plurality of LEDs light source, described backboard bottom margin place upwards turns up and forms backboard sidewall, it is characterized in that, described reflector plate bottom margin is sentenced round and smooth radian and is upwards bent, formed and be used for the uniform reflector plate side of beam reflection, described reflector plate side is fixedly installed on described backboard sidewall.
2. direct-light type LED backlight module according to claim 1, it is characterized in that, described reflector plate is rectangle, and described reflector plate side comprises the first reflector plate side being positioned at described reflection length of a film limit, and is positioned at the second reflector plate side of described reflector plate minor face.
3. direct-light type LED backlight module according to claim 2, is characterized in that, described first reflector plate side and described second reflector plate side joint are provided with the shear line for cutting, and the line of weakness for bending.
4. direct-light type LED backlight module according to claim 1, is characterized in that, described backboard sidewall edge place is also provided with the backboard extension bent in the horizontal direction, and described diffuser plate is fixedly installed in surface, described backboard extension.
5. direct-light type LED backlight module according to claim 4, is characterized in that, described reflector plate sidewall edge place is also provided with the reflector plate extension bent in the horizontal direction, and described reflector plate extension is positioned between described backboard extension and described diffuser plate.
6. direct-light type LED backlight module according to claim 4, is characterized in that, described reflector plate sidewall edge is concordant with the seamed edge that described backboard extension bends.
7. a liquid crystal display, comprises LCDs, and the display casing be fixedly connected with described LCDs, is characterized in that, also comprise as arbitrary in claim 1-6 as described in direct-light type LED backlight module.
8. a kind of liquid crystal display according to claim 7, is characterized in that, described backboard sidewall is plane.
9. a kind of liquid crystal display according to claim 7, is characterized in that, described backboard sidewall is curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523027.4U CN204405995U (en) | 2014-09-12 | 2014-09-12 | A kind of direct-light type LED backlight module and liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523027.4U CN204405995U (en) | 2014-09-12 | 2014-09-12 | A kind of direct-light type LED backlight module and liquid crystal display |
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| CN204405995U true CN204405995U (en) | 2015-06-17 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222008A (en) * | 2015-09-14 | 2016-01-06 | 达运精密工业（厦门）有限公司 | Down straight aphototropism mode set |
| CN107179630A (en) * | 2017-04-20 | 2017-09-19 | 广州毅昌科技股份有限公司 | A kind of backlight module reflector plate, backlight module and display unit |
| CN107942581A (en) * | 2017-11-20 | 2018-04-20 | 四川长虹电器股份有限公司 | A kind of down straight aphototropism mode set structure |
| CN108776410A (en) * | 2018-06-15 | 2018-11-09 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN109459811A (en) * | 2018-12-14 | 2019-03-12 | 深圳创维－Rgb电子有限公司 | A kind of reflector plate, backlight module and display equipment |
| CN110082952A (en) * | 2016-10-27 | 2019-08-02 | 船井电机株式会社 | Display device |
| WO2020062759A1 (en) * | 2018-09-26 | 2020-04-02 | 惠州市华星光电技术有限公司 | Diffusion plate, backlight structure, and display panel |
| CN111766964A (en) * | 2019-04-02 | 2020-10-13 | 南京瀚宇彩欣科技有限责任公司 | Electronic device |
| CN114019720A (en) * | 2021-11-03 | 2022-02-08 | 惠州视维新技术有限公司 | Backlight module and display device |
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2014
- 2014-09-12 CN CN201420523027.4U patent/CN204405995U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222008A (en) * | 2015-09-14 | 2016-01-06 | 达运精密工业（厦门）有限公司 | Down straight aphototropism mode set |
| CN110082952A (en) * | 2016-10-27 | 2019-08-02 | 船井电机株式会社 | Display device |
| CN107179630A (en) * | 2017-04-20 | 2017-09-19 | 广州毅昌科技股份有限公司 | A kind of backlight module reflector plate, backlight module and display unit |
| CN107942581A (en) * | 2017-11-20 | 2018-04-20 | 四川长虹电器股份有限公司 | A kind of down straight aphototropism mode set structure |
| CN107942581B (en) * | 2017-11-20 | 2021-03-16 | 四川长虹电器股份有限公司 | Direct type backlight module structure |
| CN108776410B (en) * | 2018-06-15 | 2020-07-28 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN108776410A (en) * | 2018-06-15 | 2018-11-09 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| WO2020062759A1 (en) * | 2018-09-26 | 2020-04-02 | 惠州市华星光电技术有限公司 | Diffusion plate, backlight structure, and display panel |
| WO2020119087A1 (en) * | 2018-12-14 | 2020-06-18 | 深圳创维－Rgb电子有限公司 | Reflective sheet, backlight module, and display device |
| CN109459811A (en) * | 2018-12-14 | 2019-03-12 | 深圳创维－Rgb电子有限公司 | A kind of reflector plate, backlight module and display equipment |
| CN111766964A (en) * | 2019-04-02 | 2020-10-13 | 南京瀚宇彩欣科技有限责任公司 | Electronic device |
| US11894385B2 (en) | 2019-04-02 | 2024-02-06 | Hannstar Display (Nanjing) Corporation | Electronic device |
| CN111766964B (en) * | 2019-04-02 | 2024-03-15 | 南京瀚宇彩欣科技有限责任公司 | Electronic device |
| CN114019720A (en) * | 2021-11-03 | 2022-02-08 | 惠州视维新技术有限公司 | Backlight module and display device |
| CN114019720B (en) * | 2021-11-03 | 2024-01-19 | 惠州视维新技术有限公司 | Backlight module and display device |
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