CN203405654U - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
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- CN203405654U CN203405654U CN201320477863.9U CN201320477863U CN203405654U CN 203405654 U CN203405654 U CN 203405654U CN 201320477863 U CN201320477863 U CN 201320477863U CN 203405654 U CN203405654 U CN 203405654U
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- light
- backlight module
- light source
- district
- light guide
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Abstract
The utility model discloses a backlight module and a liquid crystal display device. The backlight module comprises a light guiding plate and a light source fixed on one side of the light guiding plate, wherein the light guiding plate comprises a light mixing region for coupling light emitted by the light source and a light guiding region connected with the light mixing region and used for guiding coupled light. The light mixing region is of a curved-face structure, and the light source is fixed on one side of the light mixing region. When the light emitted by the light source passes through the light mixing region, due to the fact that a light coupling path is changed, light coupling and mixing are facilitated, the light entered the light guiding region is even, and a hotspot phenomenon can be avoided. In addition, the backlight module adopts the light guiding plate, and the side-incidence type light source is changed into a direct-lighting type light source, so that the heat radiating area of the light source on a backboard of the backlight module is large, heat radiation of the light source is facilitated, and the heat radiating efficiency of the backlight module is improved.
Description
Technical field
The utility model relates to technical field of liquid crystal display, specially refers to a kind of backlight module and liquid crystal indicator.
Background technology
Along with the development of LCD TV, to the size of LCD TV with and the requirement of display effect more and more higher, for meeting large liquid crystal size and better display effect, for the back light of LCD TV, also need to increase its driving power; Meanwhile, the ultrathin demand of LCD TV, also makes to adopt the narrow frame design of side entrance back more difficult, thereby causes heat radiation backlight good not, and easily occurs the phenomenon of focus.
Utility model content
Fundamental purpose of the present utility model, for a kind of backlight module and liquid crystal indicator are provided, is intended to improve radiating efficiency backlight, and can effectively solve hot spot phenomenon.
The utility model provides a kind of backlight module, comprise light guide plate and the light source that is fixed on described light guide plate one side, it is characterized in that, described light guide plate comprises the mixed light district that the light for described light source is sent is coupled, and Yu Gai mixed light district connects, for the light guide zone of the light after coupling that leads, described mixed light district is set to curved-surface structure, and described light source is fixed on a side in mixed light district.
Preferably, a side in described mixed light district offers through this side, for the leaded light groove of accommodating described light source, and described light source is fixed in described leaded light groove.
Preferably, the inside surface of described leaded light groove is provided with reflecting surface, and the light that this reflecting surface sends described light source reflexes in described light guide plate.
Preferably, on the surface of described light guide zone, be provided with the lattice point structure for the light after the coupling of mixed light district that evenly leads.
Preferably, on the surface of the curved-surface structure in described mixed light district, be provided with reflex reflector.
Preferably, also comprise the backboard that is arranged on the described light guide plate back side, the shape of this backboard and described light guide plate is adaptive.
Preferably, described leaded light groove is provided with opening with respect to a side of described backboard, and described light source contacts with described backboard by this opening.
The utility model also provides a kind of liquid crystal indicator, comprise backlight module, this backlight module comprises light guide plate and is fixed on the light source of described light guide plate one side, it is characterized in that, described light guide plate comprises the mixed light district that the light for described light source is sent is coupled, and Yu Gai mixed light district connects, for the light guide zone of the light after coupling that leads, described mixed light district is set to curved-surface structure, described light source is fixed on a side in mixed light district.
The utility model is by being divided into light guide plate mixed light district and light guide zone, Bing Jiang mixed light district is set to curved-surface structure, the light that light source sends is when through mixed light district, owing to having changed the coupling path of light, the more favourable coupling mixed light that has light, and the light that makes to enter into light guide zone is more even, can avoid the generation of hot spot phenomenon; Meanwhile, adopt the light guide plate of this structure, light source is changed into straight-down negative by side entering type, make the area of dissipation of light source on the backboard of backlight module larger, thereby be conducive to the heat radiation of light source, improved the radiating efficiency of backlight module.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model backlight module preferred embodiment.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of backlight module, the light guide zone that light guide plate is set to be the mixed light district of curved surface setting and is plane layout, and light source is fixed on to the side in mixed light district, by mixed light district, light is better coupled, and by light guide zone, the light after coupling is become to area source and leads.
With reference to Fig. 1, Fig. 1 is the structural representation of the utility model backlight module preferred embodiment.
The backlight module that the present embodiment provides, comprise light guide plate 10 and light source 20, this light source 20 is fixed on a side of light guide plate 10, light guide plate 10 comprises the light guide zone 12 that mixed light district 11He Yu mixed light district 11 connects, in the present embodiment, mixed light district 11 is set to curved-surface structure, and light source 20 is fixed on the side that this curved-surface structure differs from the side being connected with light guide zone 12; Light guide zone 12 can be set to planar structure.The curved-surface structure in the Guang， mixed light district 11 that light source the sends mixed light that is coupled, the light that enters into like this light guide zone 12 is just more even, then through the planar structure of light guide zone 12, the light after coupling is become to uniform area light source and distributes.
In the present embodiment, the curved-surface structure in mixed light district 11 is elastic surface, is about to mixed light district 11 and arranges and can be the employing optical material that (for example heating) can elastic bending under given conditions and make.
In the above-described embodiments, backlight module also comprises backboard (not shown), and this backboard is arranged on the back side of light guide plate 10, and its shape is set to the shape of light guide plate 10 adaptive.
In the above-described embodiments, in mixed light district 11, for a side of fixed light source 20, offer a leaded light groove 13, this leaded light groove 13 is the through hole through the Width of the side in this mixed light district 11, its cross sectional shape can be square, circular or other any shapes, for accommodating light source 20, light source 20 is fixed in leaded light groove 13, and by leaded light groove 13, light source 20 is fixed and is compressed.In the present embodiment, leaded light groove 13 is provided with opening with respect to a side of backboard, and light source 20 contacts with backboard by this opening, thereby can to light source 20, dispel the heat by backboard.In the present embodiment, because light source 20 is fixed in leaded light groove 13, inside surface at leaded light groove 13 is provided with reflecting surface, by this reflecting surface, can make full use of the luminous energy of light source 20, the light that light source 20 is sent all reflexes in light guide plate 10, and makes the luminous energy of light source 20 all enter into light guide plate 10.
In the above-described embodiments, on the surface of the curved-surface structure in the mixed light district 11 of light guide plate 10, be also provided with reflex reflector, it is protruding on crooked curved surface that this reflex reflector can be arranged on mixed light district 11, also can be arranged on mixed light district 11 recessed on crooked curved surface.For preventing that the light that light source 20 sends from going out in the surperficial transmission in interior mixed light Shi Cong mixed light district, mixed light district 11 11, this reflex reflector is set, the light that appears mixed light district is reflected back in mixed light district, to make full use of light source.
In the above-described embodiments, on the surface of light guide zone 12, be provided with lattice point structure 121, when the light that light source 20 sends will be after 11 couplings of mixed light district, when spreading out through light guide zone 12, the lattice point structure 121 arranging by its surface, makes the area source of outgoing more even.
The utility model embodiment, by light guide plate 10 being divided into 11He light guide zone, mixed light district 12, Bing Jiang mixed light district 11 is set to curved-surface structure, the light that light source 20 sends is when through mixed light district 11, owing to having changed the coupling path of light, the more favourable coupling mixed light that has light, and it is more even to make to enter into the light of light guide zone 12, can avoid the generation of hot spot phenomenon; Meanwhile, adopt the light guide plate 10 of this structure, light source 20 is changed into straight-down negative by side entering type, make the area of dissipation of light source 20 on the backboard of backlight module larger, thereby be conducive to the heat radiation of light source 20, improved the radiating efficiency of backlight module.
The utility model also provides a kind of liquid crystal indicator.
The liquid crystal indicator that the present embodiment provides, comprise backlight module, this backlight module comprises light guide plate 10 and light source 20, this light source 20 is fixed on a side of light guide plate 10, light guide plate 10 comprises the light guide zone 12 that mixed light district 11He Yu mixed light district 11 connects, the present embodiment Zhong， mixed light district 11 is set to curved-surface structure, and light source 20 is fixed on the side that this curved-surface structure differs from the side being connected with light guide zone 12; Light guide zone 12 can be set to planar structure.The curved-surface structure in the Guang， mixed light district 11 that light source the sends mixed light that is coupled, the light that enters into like this light guide zone 12 is just more even, then through the planar structure of light guide zone 12, the light after coupling is become to uniform area light source and distributes.
This liquid crystal indicator embodiment, has comprised whole technical schemes of the whole embodiment of above-mentioned backlight module, and the technique effect reaching is also identical, at this, does not repeat.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (8)
1. a backlight module, comprise light guide plate and the light source that is fixed on described light guide plate one side, it is characterized in that, described light guide plate comprises the mixed light district that the light for described light source is sent is coupled, and Yu Gai mixed light district connects, for the light guide zone of the light after coupling that leads, described mixed light district is set to curved-surface structure, and described light source is fixed on a side in mixed light district.
2. backlight module according to claim 1, is characterized in that, a side in described mixed light district offers through this side, for the leaded light groove of accommodating described light source, and described light source is fixed in described leaded light groove.
3. backlight module according to claim 2, is characterized in that, the inside surface of described leaded light groove is provided with reflecting surface, and the light that this reflecting surface sends described light source reflexes in described light guide plate.
4. backlight module according to claim 3, is characterized in that, is provided with the lattice point structure for the light after the coupling of mixed light district that evenly leads on the surface of described light guide zone.
5. backlight module according to claim 4, is characterized in that, on the surface of the curved-surface structure in described mixed light district, is provided with reflex reflector.
6. according to the backlight module described in any one in claim 1 to 4, it is characterized in that, also comprise the backboard that is arranged on the described light guide plate back side, the shape of this backboard and described light guide plate is adaptive.
7. backlight module according to claim 6, is characterized in that, described leaded light groove is provided with opening with respect to a side of described backboard, and described light source contacts with described backboard by this opening.
8. a liquid crystal indicator, is characterized in that, comprises the backlight module as described in any one in claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477863.9U CN203405654U (en) | 2013-08-06 | 2013-08-06 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477863.9U CN203405654U (en) | 2013-08-06 | 2013-08-06 | Backlight module and liquid crystal display device |
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| Publication Number | Publication Date |
|---|---|
| CN203405654U true CN203405654U (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320477863.9U Expired - Fee Related CN203405654U (en) | 2013-08-06 | 2013-08-06 | Backlight module and liquid crystal display device |
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| CN (1) | CN203405654U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607345A (en) * | 2016-03-25 | 2016-05-25 | 京东方科技集团股份有限公司 | Lateral backlight source and display equipment |
| CN107763490A (en) * | 2016-08-18 | 2018-03-06 | 四川新力光源股份有限公司 | Suitable for the agriculture illuminator of different plants |
| US11709309B2 (en) | 2020-08-13 | 2023-07-25 | Beijing Boe Optoelectronics Technology Co., Ltd. | Edge-lit light source, backlight module and display devices |
-
2013
- 2013-08-06 CN CN201320477863.9U patent/CN203405654U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607345A (en) * | 2016-03-25 | 2016-05-25 | 京东方科技集团股份有限公司 | Lateral backlight source and display equipment |
| CN105607345B (en) * | 2016-03-25 | 2018-09-25 | 京东方科技集团股份有限公司 | Side-edge type backlight and display equipment |
| CN107763490A (en) * | 2016-08-18 | 2018-03-06 | 四川新力光源股份有限公司 | Suitable for the agriculture illuminator of different plants |
| US11709309B2 (en) | 2020-08-13 | 2023-07-25 | Beijing Boe Optoelectronics Technology Co., Ltd. | Edge-lit light source, backlight module and display devices |
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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: 20140122 Termination date: 20210806 |
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| CF01 | Termination of patent right due to non-payment of annual fee |