CN103047585A - Lateral incidence type backlight module and liquid crystal television - Google Patents
Lateral incidence type backlight module and liquid crystal television Download PDFInfo
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- CN103047585A CN103047585A CN2012105579401A CN201210557940A CN103047585A CN 103047585 A CN103047585 A CN 103047585A CN 2012105579401 A CN2012105579401 A CN 2012105579401A CN 201210557940 A CN201210557940 A CN 201210557940A CN 103047585 A CN103047585 A CN 103047585A
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Abstract
The invention discloses a lateral incidence type backlight module and a liquid crystal television. The backlight module comprises a rectangular light guide plate and LED (Light-Emitting Diode) lamp bars, wherein the light guide plate is composed of two parallel long sides and two parallel short sides; arc-shaped sides for smooth transitional connection are arranged at the joints of the long sides and the short sides; the LED lamp bars are arranged at the outer sides of the arc-shaped sides; the LED lamp bars are arc-shaped to be adaptable to the arc-shaped sides; and the LED lamps on the LED lamp bars are arranged towards the arc-shaped sides. As the light guide plate with arc-shaped corners is adopted, and the arc-shaped LED lamp bars are arranged on the arc-shaped corners, the number of used LED lamps is reduced greatly while the same brightness requirement is satisfied, and the cost of the lateral incidence type backlight module is also reduced obviously; and as the arc-shaped LED lamp bars are dispersed at the four corners of the light guide plate, the disadvantage of too intensive heat energy generated by the traditional LED lamp bars which are arranged on the upper sides or the short sides is avoided, heat dissipation effects are improved efficiently, and service life of the LED lamps is prolonged.
Description
Technical field
The present invention relates to the LED-backlit module field in the LCD TV, in particular the side entrance back module of low, the good heat dissipation effect of a kind of cost.
Background technology
Along with sharply rising violently of Chinese LED LCD TV demand, LED-backlit module field development is swift and violent, adds the requirements such as low cost, energy-conservation, high-performance, and each TV producer releases the separately LED LCD TV of Ultra Low Cost one after another, to seize certain market share
Consider that from the angle of energy-saving and environmental protection, Ultra Low Cost the light inlet mode of side entering-type LED backlight module changes into one-sided or the bilateral light inlet by four side light inlets gradually.And at present because the LED LCD TV is faced with huge cost pressure, the cost that how to reduce preferably the LED-backlit module becomes the target that industry is mainly challenged.
Side entering-type LED backlight module of the prior art, the lamp bar that it adopts has generally taken the length of side of whole LGP, perhaps grows limit single-sided illumination, perhaps minor face single-sided illumination, perhaps minor face bilateral light inlet etc.
But because the used LED of a lamp bar number is more, not only cost is higher, does not have price advantage in market with keen competition, and LED number is more also heat radiation backlight is had higher requirement, if dispel the heat bad then can greatly shorten service life of LED.
Therefore, prior art still haves much room for improvement and develops.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of side entrance back module, low, the good heat dissipation effect of cost.
Simultaneously, the present invention also provides a kind of LCD TV, and the cost of its used part backlight is low, the life-span is long.
Technical scheme of the present invention is as follows: a kind of side entrance back module, comprise LGP and LED lamp bar, described LGP is rectangular, formed by two parallel long limits and two parallel short sides, described long limit and described minor face intersect vertically, wherein: be provided with the arc-shaped side that smooth transition is connected adjacent long edges and minor face on described long limit with the intersection of described minor face, be provided with described LED lamp bar in the outside of described arc-shaped side correspondence, described LED lamp bar is the arcuate shape suitable with described arc-shaped side, and the light-emitting area of the LED lamp on the described LED lamp bar is towards described arc-shaped side setting.
Described side entrance back module, wherein: described arc-shaped side is the circular arc limit, described LED lamp bar is the circular arc shape on adaptive this circular arc limit.
Described side entrance back module, wherein: the LED lamp number on every LED lamp bar is no more than 5.
A kind of LCD TV comprises liquid crystal panel and is arranged on the backlight module at this liquid crystal panel back side, wherein: described backlight module be above-mentioned in each described side entrance back module.
Described LCD TV, wherein: the outline line of described arc-shaped side is arranged on outside the scope of described LCD TV visible area.
A kind of side entrance back module provided by the present invention and LCD TV, owing to adopted the LGP with arc-shaped corner, and at arc-shaped corner arc LED lamp bar is set, satisfying under the condition of same brightness requirement, significantly reduce the usage quantity of LED lamp, obviously reduced thus the cost of side entrance back module; And arc LED lamp bar can dispel the heat spread heat to four angles of LGP, also avoided being arranged on because of traditional LED lamp bar the too concentrated defective of heat of top or minor face generation, effectively improve radiating effect, prolonged the service life of LED lamp.
Description of drawings
Fig. 1 is the floor map of side entrance back module of the present invention.
Fig. 2 is the partial schematic diagram of side entrance back module of the present invention.
The specific embodiment
Below with reference to accompanying drawing, the specific embodiment of the present invention and embodiment are described in detail, described specific embodiment is not for limiting the specific embodiment of the present invention only in order to explain the present invention.
As shown in Figure 1, Fig. 1 is the floor map of side entrance back module of the present invention, this side entrance back module comprises LGP 110 and LED lamp bar 120, described LGP 110 is rectangular, by two parallel long limits (111,112) up and down and about two parallel minor faces (113,114) form intersect vertically four angles of this rectangular light guide plate 110 of formation of described long limit (111,112) and described minor face (113,114).
In conjunction with shown in Figure 2, Fig. 2 is the partial schematic diagram of side entrance back module of the present invention, take the intersection of growing limit 111 and minor face 113 as example, intersection at described long limit 111 and described minor face 113 is provided with arc-shaped side 115, these arc-shaped side 115 smooth transition connect adjacent with it long limit 111 and minor face 113, also correspondence is provided with described LED lamp bar 120 in the outside of described arc-shaped side 115, and described LED lamp bar 120 also is the arcuate shape suitable with this arc-shaped side 115, and the light-emitting area of the LED lamp 122 on the described LED lamp bar 120 arranges towards described arc-shaped side 115.
In the preferred embodiment of side entrance back module of the present invention, described arc-shaped side preferably adopts the circular arc limit, and correspondingly, described LED lamp bar also is the circular arc shape on adaptive this circular arc limit.Compare thus other shapes, the circular arc shape can be so that the light that described LED lamp bar 120 sends incides in the described LGP 110 more equably from the side.
Based on above-mentioned side entrance back module, the invention allows for a kind of LCD TV, comprise liquid crystal panel and the backlight module that is arranged on this liquid crystal panel back side, wherein: described backlight module can adopt each described side entrance back module in above-described embodiment, to reduce the complete machine cost pressure.
Concrete, take 32 cun LCD TVs as example, the result of experiment shows, adopts side entrance back module of the present invention, the LED lamp of 16 2W of needs can reach the backlight illumination requirement of standard altogether, can uniform 4 LED lamp on every arc LED lamp bar.
In fact, a LED lamp number that needs only on every arc LED lamp bar 120 is no more than 5 (comprising 5), can reduce significantly the overall cost of side entrance back module.
As shown in Figure 1, a visible area 130 all can be set on the front glass panel of every LCD TV, and the radian at the radian of arc LED lamp bar 120 and 110 4 angles of LGP all can be adjusted according to visible area 130 sizes on this front glass panel, for example, the outline line of described arc-shaped side can arrange outside the scope of described visible area, and the boundary point at four angles of described visible area visually can drop on the outline line of corresponding with it arc-shaped side, to guarantee that LCD TV has the frame of narrower effect and the arc angle of LGP 110 can not enter in the scope of visible area 130 again.
Should be understood that; the above only is preferred embodiment of the present invention; be not sufficient to limit technical scheme of the present invention; for those of ordinary skills; within the spirit and principles in the present invention; can be increased and decreased according to the above description, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection domain of claims of the present invention.
Claims (5)
1. side entrance back module, comprise LGP and LED lamp bar, described LGP is rectangular, formed by two parallel long limits and two parallel short sides, described long limit and described minor face intersect vertically, it is characterized in that: be provided with the arc-shaped side that smooth transition is connected adjacent long edges and minor face on described long limit with the intersection of described minor face, be provided with described LED lamp bar in the outside of described arc-shaped side correspondence, described LED lamp bar is the arcuate shape suitable with described arc-shaped side, and the light-emitting area of the LED lamp on the described LED lamp bar is towards described arc-shaped side setting.
2. side entrance back module according to claim 1, it is characterized in that: described arc-shaped side is the circular arc limit, described LED lamp bar is the circular arc shape on adaptive this circular arc limit.
3. side entrance back module according to claim 1 is characterized in that: the LED lamp number on every LED lamp bar is no more than 5.
4. a LCD TV comprises liquid crystal panel and the backlight module that is arranged on this liquid crystal panel back side, and it is characterized in that: described backlight module is each described side entrance back module in the claim 1 to 4.
5. LCD TV according to claim 4, it is characterized in that: the outline line of described arc-shaped side is arranged on outside the scope of described LCD TV visible area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105579401A CN103047585A (en) | 2012-12-20 | 2012-12-20 | Lateral incidence type backlight module and liquid crystal television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105579401A CN103047585A (en) | 2012-12-20 | 2012-12-20 | Lateral incidence type backlight module and liquid crystal television |
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| Publication Number | Publication Date |
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| CN103047585A true CN103047585A (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105579401A Pending CN103047585A (en) | 2012-12-20 | 2012-12-20 | Lateral incidence type backlight module and liquid crystal television |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712976A (en) * | 2015-04-10 | 2015-06-17 | 深圳市同方光电科技有限公司 | Backlight source and setting structure for incident light source of backlight source |
| CN104730615A (en) * | 2013-12-24 | 2015-06-24 | 奇美实业股份有限公司 | Optical plate and backlight module using same |
| CN105717697A (en) * | 2014-12-04 | 2016-06-29 | 南京瀚宇彩欣科技有限责任公司 | Backlight module and display device |
| CN107678206A (en) * | 2016-08-02 | 2018-02-09 | 三星显示有限公司 | Light emission module and the display device including light emission module |
| CN107797336A (en) * | 2016-08-31 | 2018-03-13 | 三星显示有限公司 | Light emitting module |
| EP3315856A1 (en) * | 2016-10-28 | 2018-05-02 | Samsung Electronics Co., Ltd. | Display apparatus |
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| JPH06308491A (en) * | 1993-04-26 | 1994-11-04 | Toshiba Lighting & Technol Corp | Back light device and liquid crystal display device unit it |
| KR20060104511A (en) * | 2005-03-30 | 2006-10-09 | 엘지.필립스 엘시디 주식회사 | Liquid crystal display device module |
| JP2008147040A (en) * | 2006-12-11 | 2008-06-26 | Nippon Leiz Co Ltd | Light guide plate and flat lighting device |
| US20100290246A1 (en) * | 2009-05-13 | 2010-11-18 | Hyoung-Joo Kim | Light-emitting module and display device having the same |
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2012
- 2012-12-20 CN CN2012105579401A patent/CN103047585A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06308491A (en) * | 1993-04-26 | 1994-11-04 | Toshiba Lighting & Technol Corp | Back light device and liquid crystal display device unit it |
| KR20060104511A (en) * | 2005-03-30 | 2006-10-09 | 엘지.필립스 엘시디 주식회사 | Liquid crystal display device module |
| JP2008147040A (en) * | 2006-12-11 | 2008-06-26 | Nippon Leiz Co Ltd | Light guide plate and flat lighting device |
| US20100290246A1 (en) * | 2009-05-13 | 2010-11-18 | Hyoung-Joo Kim | Light-emitting module and display device having the same |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730615A (en) * | 2013-12-24 | 2015-06-24 | 奇美实业股份有限公司 | Optical plate and backlight module using same |
| CN104730615B (en) * | 2013-12-24 | 2018-05-11 | 奇美实业股份有限公司 | Optical plate and backlight module using same |
| CN105717697A (en) * | 2014-12-04 | 2016-06-29 | 南京瀚宇彩欣科技有限责任公司 | Backlight module and display device |
| CN104712976A (en) * | 2015-04-10 | 2015-06-17 | 深圳市同方光电科技有限公司 | Backlight source and setting structure for incident light source of backlight source |
| CN104712976B (en) * | 2015-04-10 | 2017-11-14 | 深圳市同方光电科技有限公司 | The setting structure of backlight and its incident light source |
| CN107678206A (en) * | 2016-08-02 | 2018-02-09 | 三星显示有限公司 | Light emission module and the display device including light emission module |
| CN107797336A (en) * | 2016-08-31 | 2018-03-13 | 三星显示有限公司 | Light emitting module |
| EP3315856A1 (en) * | 2016-10-28 | 2018-05-02 | Samsung Electronics Co., Ltd. | Display apparatus |
| CN108022520A (en) * | 2016-10-28 | 2018-05-11 | 三星电子株式会社 | Display device |
| US10261231B2 (en) | 2016-10-28 | 2019-04-16 | Samsung Electronics Co., Ltd. | Display apparatus |
| CN108022520B (en) * | 2016-10-28 | 2022-02-11 | 三星电子株式会社 | Display device |
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Application publication date: 20130417 |
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