CN203731289U - LED lamp strips, backlight module and display device - Google Patents
LED lamp strips, backlight module and display device Download PDFInfo
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- CN203731289U CN203731289U CN201420074032.1U CN201420074032U CN203731289U CN 203731289 U CN203731289 U CN 203731289U CN 201420074032 U CN201420074032 U CN 201420074032U CN 203731289 U CN203731289 U CN 203731289U
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
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Abstract
The utility model discloses LED lamp strips, a backlight module and a display device, and relates to the field of display. The backlight module comprises a back plate, a frame, the LED lamp strips, optical elements and a plurality of reflection components. Each LED lamp strip comprises a lamp strip body and a plurality of LED lamps, the LED lamps of each LED lamp strip are positioned on the corresponding lamp strip body, the corresponding reflection components are arranged on each two adjacent LED lamps on the corresponding lamp strip body and/or a spacing zone between each two adjacent LED lamp strips, and reflection surfaces of the reflection components face the LED lamps. The LED lamp strips, the backlight module and the display device have the advantages that the light source utilization rate can be increased on the premise that the quantity of the LED lamps and/or the manufacturing technological difficulty of the optical elements are not increased; light rays in the spacing zones can be transmitted into light emitting dark zones of display zones, so that adverse phenomena of uneven brightness of light can be relieved.
Description
Technical field
The utility model relates to demonstration field, relates in particular to a kind of LED lamp bar, backlight module and display unit.
Background technology
Because resolution ratio is high, definition is good, power consumption is low and the advantage such as environmental protection, LED(Light Emitting Diode, light emitting diode) lamp more and more popularized in application in recent years as the backlight of liquid crystal panel.But LED is due to the restriction of lighting angle, thereby cause the skewness of the light that light source sends, the dark phenomenon of bright surrounding in the middle of causing.Specifically be applied among backlight module, due to the gap existence between the existence of the gap between two adjacent LEDs lamp and/or adjacent two LED lamp bars and the restriction of LED lamp lighting angle in same lamp bar, thereby form light and dark phenomenon, the non-uniform light phenomenon that Here it is often says after causing light to enter optical element (as LGP, diffuser plate, brightness enhancement film etc.).
Specifically as shown in Figure 1, take side entrance back module as example, because the lighting angle of LED lamp 200 is limited, cause the light in lighting angle stronger, and light outside lighting angle a little less than, in addition owing to there being gap between LED lamp 200, causing between LED lamp 200 needs there is certain light mixing distance, gap between LED lamp 200 is larger, and light mixing distance is larger.And when LGP 400 and with it over against the distance of LED lamp 200 light-emitting areas while being less than light mixing distance, thereby the light in LED lamp 200 lighting angles can enter LGP 400 completely and form luminous clear zone II, the weak light sending from the side 201 of LED lamp 200 has rested on the spacer region I of LED lamp 200, cannot enter LGP 400, thereby in the interior luminous dark space III that formed of LGP 400.
For solving above-mentioned problem, in prior art, conventionally adopt the number that increases LED lamp to make up the excessively dark defect in LED lamp gap, but the quantity that increases LED lamp can increase cost greatly, and can produce the heat radiation of too much heat effects LED lamp bar, reduce the life-span of LED lamp bar; Also have by improving the structure of optical element, as change the network point distribution of LGP, adjust the size of site or adopt LGP light inlet micro-structural to process, light is disperseed to transmit again, but these solutions, are often limited to product very little, manufacture craft, the reasons such as production cost, process luminance nonuniformity effect undesirable.
Utility model content
(1) want technical solution problem
The technical problems to be solved in the utility model is: a kind of LED lamp bar, backlight module are provided and have had the display unit of described LED lamp bar or described backlight module, make in the manufacture craft difficulty that does not increase optical element (as LGP, diffuser plate, brightness enhancement film etc.), and/or do not increase under the prerequisite of number of LED lamp, improve light source utilization rate and send out uniformity of light, further can alleviate the bad phenomenon of light and shade inequality.
(2) technical scheme
For addressing the above problem, the utility model provides a kind of backlight module, described backlight module comprises backboard, frame, LED lamp bar and optical element, described LED lamp bar comprises lamp bar body and is positioned at a plurality of LED lamps on described lamp bar body, described backlight module also comprises a plurality of reflection parts, described reflection part is arranged on two adjacent LEDs lamp on described lamp bar body and/or the interval region place of adjacent two LED lamp bars, and the reflecting surface of described reflection part is towards described LED lamp.
Preferably, the luminous dark space forming in described optical element described lamp bar body projection be in the plane positioned at described reflection part described lamp bar body within drop shadow spread in the plane.
Preferably, the luminous dark space forming in described optical element described lamp bar body projection in the plane and described reflection part described lamp bar body projection in the plane overlap.
Preferably, the height of described reflection part is not less than the height of LED lamp.
Preferably, the height of described reflection part exceeds the end face 0-1mm of LED lamp.
In the utility model side entrance back module embodiment, preferred, described reflection part is triangular prism shaped, a described triangular prism shaped bottom surface that side is described reflection part.
Preferably, the drift angle of described reflection part is not less than 90 °.
Preferably, the drift angle of described reflection part is 120 °.
Preferably, described reflection part is also arranged on the two ends of described LED lamp bar.
Preferably, the height of reflection part that is arranged on the two ends of described LED lamp bar described in equates with the distance of described optical element incidence surface to described LED lamp bottom surface.
Preferably, described in be arranged on the two ends of described LED lamp bar reflection part be right-angle prismatic cylindricality, a bottom surface that right-angled side faces is described reflection part of described right-angle prismatic cylindricality.
In the utility model down straight aphototropism mode set embodiment, preferred, described reflection part is the quadrangular pyramid shape that four sides concave, the bottom surface that the bottom surface of described quadrangular pyramid shape is described reflection part.
Preferably, the reflecting surface of described reflection part is fully reflecting surface, to guarantee minimum light losing, can adopt glass-reflected face silver-plated, or adopts the high light of plastic cement reflecting surface to process.
Embodiment of the present utility model also provides a kind of LED lamp bar, described LED lamp bar comprises lamp bar body and is positioned at a plurality of LED lamps on described lamp bar body, described LED lamp bar also comprises a plurality of reflection parts, described reflection part is arranged on the interval region place of the two adjacent LEDs lamp on described lamp bar body, and the reflecting surface of described reflection part is towards described LED lamp.
Preferably, described reflection part is triangular prism shaped, a described triangular prism shaped bottom surface that side is described reflection part.
Preferably, the drift angle of described reflection part is not less than 90 °.
Preferably, the drift angle of described reflection part is 120 °.
Preferably, described reflection part is also arranged on the two ends of described LED lamp bar.
Preferably, described in be arranged on the two ends of described LED lamp bar reflection part be right-angle prismatic cylindricality, a bottom surface that right-angled side faces is described reflection part of described right-angle prismatic cylindricality.
Preferably, the reflecting surface of described reflection part is fully reflecting surface, to guarantee minimum light losing, can adopt glass-reflected face silver-plated, or adopts the high light of plastic cement reflecting surface to process.
Preferably, the height of described reflection part is not less than the height of described LED lamp.
Preferably, the height of described reflection part exceeds the end face 0-1mm of described LED lamp.
The utility model also provides a kind of display unit, and described display unit comprises above-mentioned LED lamp bar or backlight module.
(3) beneficial effect of the present invention
LED lamp bar described in the utility model, backlight module and display unit, interval region place by the two adjacent LEDs lamp on lamp bar body and/or adjacent two LED lamp bars arranges reflection part, do not increasing the number of LED lamp and/or do not increasing under the prerequisite of manufacture craft difficulty of optical element (as LGP, diffuser plate, brightness enhancement film etc.), improved the utilization rate of light source, in addition, make the light of interval region can enter the luminous dark space of viewing area, alleviate the bad phenomenon of the light and shade inequality of light.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of luminous situation in backlight module in prior art;
Fig. 2 a is the side entrance back modular structure schematic diagram that the utility model embodiment provides;
Fig. 2 b is the side entrance back module light path effect schematic top plan view that the utility model embodiment provides;
Fig. 3 a is the side entrance back modular structure schematic diagram that another embodiment of the utility model provides;
Fig. 3 b is the side entrance back module light path effect schematic top plan view that another embodiment of the utility model provides;
Fig. 4 a is the down straight aphototropism mode set schematic top plan view that the another embodiment of the utility model provides;
Fig. 4 b is that the down straight aphototropism mode set that provides of the another embodiment of the utility model is along A-A to sectional structure schematic diagram.
Fig. 5 a is the structural representation of the LED lamp bar that provides of the utility model embodiment;
Fig. 5 b is the light path effect side view of the LED lamp bar that provides of the utility model embodiment;
Fig. 6 a is the structural representation of the LED lamp bar that provides of another embodiment of the utility model;
Fig. 6 b is the light path effect side view of the LED lamp bar that provides of another embodiment of the utility model.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
The utility model embodiment provides a kind of backlight module, as Fig. 2 a, 2b, be respectively side entering type back light module unit structure schematic diagram and luminous schematic diagram under this embodiment, described backlight module comprises: backboard (not shown), frame (not shown), LED lamp bar and optical element.Wherein, optical element can comprise one or more in LGP, diffuser plate, brightness enhancement film; Certainly, described optical element can also need to comprise or for other ways of realization, not limit herein according to design.Here take optical element as LGP 400 be example, described LED lamp bar comprises lamp bar body 300 and is positioned at a plurality of LED lamps 200 on described lamp bar body 300, described LED lamp bar is positioned at the light inlet side of described LGP 400.Described backlight module also comprises a plurality of reflection parts, and described reflection part is arranged on the interval region place of the two adjacent LEDs lamp 200 on described lamp bar body 300, and the reflecting surface of described reflection part is towards described LED lamp 200.
When described backlight module comprises more than two LED lamp bars, described reflection part can also be arranged on the interval region place of adjacent two LED lamp bars; Or described reflection part can be arranged on two adjacent LEDs lamp 200 on described lamp bar body 300 and the interval region place of adjacent two LED lamp bars simultaneously.So can make after reflection, to change direction in LED lamp 200 or the light at LED lamp bar interval, thereby enter the luminous dark space of optical element, can be with reference to Fig. 2 b, can be specifically the luminous dark space III of LGP 400 herein, by making full use of of light source, alleviate like this phenomenon of the luminance nonuniformity in backlight module.Without the manufacture craft difficulty that increases optical element, without the number that increases LED lamp 200, thereby do not increase heat radiation burden simultaneously yet.
Another embodiment that the utility model provides is different from above-described embodiment and is, the luminous dark space III of described LGP 400 interior formation is positioned at described reflection part within 300 of described lamp bar bodies drop shadow spread in the plane in the projection in the plane of 300 of described lamp bar bodies, thereby can guarantee that reflection ray can all enter luminous dark space.
Preferably, the luminous dark space III of described LGP 400 interior formation overlaps in the projection in the plane of 300 of described lamp bar bodies at the projection in the plane of 300 of described lamp bar bodies and described reflection part.Specifically as shown in Figure 2 a, the light of so guaranteeing spacer region I can all reflect and enter luminous dark space III, avoids the waste of reflection part material simultaneously.
Concrete, the height of described reflection part is not less than the height of described LED lamp 200, thereby further improves the utilization rate that LED lamp 200 sends light.
Preferably, the height of described reflection part exceeds the end face 0-1mm of described LED lamp 200, thereby when the utilization rate that guarantees the light that sends at LED lamp 200 increases, can also reduce the waste of reflection part material.
In order further to optimize technique scheme, in the present embodiment, described reflection part can be for triangular prism shaped, a described triangular prism shaped bottom surface that side is described reflection part, hereinafter referred to as triangular prism reflection part 100, wherein, the face of the bottom surface of described reflection part for contacting with described lamp bar body 300.So can make reflection part designs simplification.
Wherein, described triangular prism reflection part 100 comprises two reflectings surface 103, for reflecting the light of two adjacent LEDs lamp spacer region I, as shown in Figure 2 b, the weak light penetrating from the side 201 of LED lamp 200 enters spacer region I, by reflection part, change its light path, make light can enter the luminous dark space III of LGP.
Preferably, the apex angle α of described triangular prism reflection part 100 is not less than 90 °, so, the spacing of LED lamp 200 suitably can be increased, thereby alleviate heat radiation burden.
Here further alternative, can to select LED lamp 200 spacing to double distance, the apex angle α of described triangular prism reflection part 100 is 120 °, thereby is meeting the number that reduces LED lamp 200 under the prerequisite of product requirement, and heat radiation situation is improved.
Fig. 3 a, 3b are side entrance back modular structure schematic diagram and the luminous schematic diagrames of another embodiment of providing of the utility model, before the present embodiment is different from, described embodiment is, described reflection part is also arranged on the two ends of described LED lamp bar, so can make the light of the LED lamp directive frame (not shown) at two ends on LED lamp bar also can access utilization.
Concrete, described in be arranged on the two ends of described LED lamp bar the height of reflection part equate with the distance of described LGP 400 incidence surfaces to described LED lamp 200 bottom surfaces, thereby prevent that light from spilling from the two ends of LED lamp bar.Wherein, the face of the bottom surface of described LED lamp 200 for contacting with described lamp bar body 300.
Preferably, specifically can be with reference to 3a, 3b, the described reflection part that is arranged on the two ends of described LED lamp bar is right-angle prismatic cylindricality, a bottom surface that right-angled side faces is described reflection part of described right-angle prismatic cylindricality, hereinafter to be referred as right-angle prismatic post reflection part 110, wherein, the face of the bottom surface of described reflection part for contacting with described lamp bar body 300.So, can simplify reflection part structure, the light reflection that simultaneously also LED lamp 200 can be sent near the side 202 of frame enters luminous dark space III.
Another embodiment of the present utility model provides a kind of backlight module of straight-down negative, specifically can be with reference to 4a, 4b, described down straight aphototropism mode set comprises: backboard 500, frame (not shown), LED lamp bar and optical element, here take diffuser plate 600 as example, described LED lamp bar comprises lamp bar body 300 and is positioned at a plurality of LED lamps 200 on described lamp bar body 300, and described LED lamp bar is positioned at the light inlet side of described diffuser plate.Described backlight module also comprises a plurality of reflection parts, and described reflection part is arranged on the interval region place of described adjacent two LED lamp bars, and the reflecting surface of described reflection part is towards described LED lamp.It is example that this embodiment is together arranged on reflection part and LED lamp bar on backboard 500, so can make the light in adjacent LED lamp bar interval change direction after reflection, thereby enter the luminous dark space III of diffuser plate, by making full use of of light source, alleviated like this phenomenon of the luminance nonuniformity in backlight module.
In addition, described backlight module, except diffuser plate, can also comprise other optical elements such as brightness enhancement film, does not limit here.In Fig. 4 a, drawn the wherein schematic top plan view of the luminous situation of four LED lamps 200, in described backlight module, the luminous situation of remaining LED lamp 200 is identical, figure that dotted line encloses is that described LED lamp 200 light enter the luminous clear zone of LGP 400 rear formation, and the underlapped part of dashed region is luminous dark space III.
Certainly, in order further to reduce the number of LED lamp 200, strengthen the heat dispersion of lamp bar, can suitably increase the distance at the adjacent LED interval on LED lamp bar, now, described reflection part can also be arranged on the interval region place of the two adjacent LEDs lamp 200 on described lamp bar body 300; Or described reflection part can be arranged on two adjacent LEDs lamp 200 on described lamp bar body 300 and the interval region place of adjacent two LED lamp bars simultaneously.
In addition, be different from above-mentioned down straight aphototropism mode set embodiment, the luminous dark space III of described diffuser plate 600 interior formation is positioned at described reflection part within 300 of described lamp bar bodies drop shadow spread in the plane in the projection in the plane of 300 of described lamp bar bodies, thereby can guarantee that reflection ray can all enter luminous dark space III.
Preferably, the luminous dark space III of described diffuser plate 600 interior formation overlaps in the projection in the plane of 300 of described lamp bar bodies at the projection in the plane of 300 of described lamp bar bodies and described reflection part, can make like this light that gap location is reflected between LED lamp bar all reflect and enter luminous dark space III, avoid the waste of reflection part material simultaneously.
Concrete, described reflection part can be the quadrangular pyramid shape that four sides concave, the bottom surface of described quadrangular pyramid shape is the bottom surface of described reflection part, and with described LED lamp bar place at grade, hereinafter referred to as quadrangular pyramid shape reflection part 120, its along A-A to profile can be with reference to Fig. 4 b, by as above arranging and can make light be fully used, and reduce the consumption of reflection part material.
In addition, be different from the above-mentioned down straight aphototropism mode set embodiment providing, the height of described reflection part is not less than the height of described LED lamp 200, thereby further improves the utilization rate that LED lamp 200 sends light.
Preferably, the height of described reflection part exceeds the end face 0-1mm of described LED lamp 200, thereby when the utilization rate that guarantees the light that sends at LED lamp 200 increases, can also reduce the waste of reflection part material.
The reflecting surface of the reflection part described in all embodiment that more than provide in addition, can be fully reflecting surface.Concrete, the reflecting surface of the reflecting surface 103 of described triangular prism reflection part 100 or right-angle prismatic post reflection part 110, quadrangular pyramid shape reflection part 120 is fully reflecting surface, to guarantee minimum light losing, can adopt glass-reflected face silver-plated, or adopt the high light of plastic cement reflecting surface to process, it will be appreciated that equally, except above-mentioned method, can also adopt other mode to reach the effect of total reflection, at this, no longer enumerate.
The above reflection part is fixed on described lamp bar body 300 or backboard 500, concrete mounting means can be bonding for colloid, or adopt metal pins piece mode to fix, it should be noted that in actual applications, can also adopt other mode to install fixing, at this, will not enumerate.
Be appreciated that, the shape of described reflection part is not limited to the shape of mentioning in above embodiment, operable shape has: hemispherical, trapezoidal column, polygon post etc., as long as the light usable reflection in spacer region I can be entered to the luminous dark space of LGP III, thereby make equalizing light rays, alleviate the bad phenomenon that non-uniform light brings.
Embodiment of the present utility model also provides a kind of LED lamp bar, specifically can be with reference to Fig. 5 a, 5b, described LED lamp bar comprises: lamp bar body 300 and be positioned at a plurality of LED lamps 200 on described lamp bar body 300, described LED lamp bar also comprises a plurality of reflection parts, described reflection part is arranged on the spacer region I place of the two adjacent LEDs lamp 200 on described lamp bar body 300, and the reflecting surface of described reflection part is towards described LED lamp 200.So, thereby can change direction by the light that reflection part can make to be positioned at the spacer region I place of the two adjacent LEDs 200 on described LED lamp bar 300, from LED lamp bar is positive, penetrate, improve the utilization rate of light source.
Preferably, specifically can be with reference to 5a, 5b, described reflection part is triangular prism shaped, a described triangular prism shaped bottom surface that side is described reflection part, hereinafter referred to as triangular prism reflection part 130, wherein, the face of the bottom surface of described reflection part for contacting with described lamp bar body 300.So can make reflection part designs simplification.
Wherein, described triangular prism reflection part 100 comprises two reflectings surface 103, for reflecting the light of two adjacent LEDs lamp spacer region I, the weak light penetrating from the side 201 of LED lamp 200 enters spacer region I, by reflection part, change its light path, make light change direction, from the front of LED lamp bar, penetrate, by simple reflection part structure, just can complete the raising of light source utilization rate like this.
Further preferred, the apex angle α of described triangular prism reflection part 100 is not less than 90 °, so, the spacing of LED lamp 200 suitably can be increased, thereby slow down heat radiation burden.
Here optional, can to select LED lamp 200 spacing to double distance, the apex angle α of described triangular prism reflection part 130 is 120 °, thereby is meeting the number that reduces LED lamp 200 under the prerequisite of product requirement, and heat radiation situation is improved.
The embodiment that is different from above-mentioned LED lamp bar, described reflection part is also arranged on the two ends of described LED lamp bar.Specifically can be with reference to Fig. 6 a, 6b, so can make the light that send the side 202 of the LED lamp 200 at two ends on LED lamp bar also can after the reflection of reflection part, change direction, thereby from the front of LED lamp bar, penetrate, thereby the utilization rate of light source is further enhanced.
Preferably, the described reflection part that is arranged on the two ends of described LED lamp bar is right-angle prismatic cylindricality, a bottom surface that right-angled side faces is described reflection part of described right-angle prismatic cylindricality, hereinafter to be referred as right-angle prismatic post reflection part 140, wherein, the face of the bottom surface of described reflection part for contacting with described lamp bar body 300.So, can simplify reflection part structure.
In addition, the reflecting surface of above-described reflection part is fully reflecting surface.Concrete, the reflecting surface 103 of described triangular prism reflection part 130, or the reflecting surface 104 of right-angle prismatic post reflection part 140 is fully reflecting surface, to guarantee minimum light losing, can adopt glass-reflected face silver-plated, or adopt the high light of plastic cement reflecting surface to process, it will be appreciated that equally, except above-mentioned method, can also adopt other mode to reach the effect of total reflection, at this, no longer enumerate.
For the embodiment of all LED lamp bars that provide above, specifically can be with reference to 6a, 6b, the height of described reflection part is not less than the height of described LED lamp 200, thereby further improves the utilization rate that LED lamp 200 sends light.
Preferably, the height of described reflection part exceeds the end face 0-1mm of described LED lamp 200, thereby when the utilization rate that guarantees the light that sends at LED lamp 200 increases, can also reduce the waste of reflection part material.
The above reflection part is fixed on described lamp bar body 300, concrete mounting means can be bonding for colloid, or adopt metal pins piece mode to fix, and it should be noted that in actual applications, can also adopt other mode to install fixing, at this, will not enumerate.
Be appreciated that, the shape of described reflection part is not limited to the shape of mentioning in above embodiment, operable shape has: hemispherical, trapezoidal column, polygon post etc., as long as the light in spacer region I can be changed to direction, make it from the positive bright dipping of LED lamp bar, improve the utilization rate of the light of LED.
The utility model also provides a kind of display unit, and described display unit comprises above-described LED lamp bar or above-described backlight module.Described display unit can be: any product or parts with Presentation Function such as liquid crystal panel, mobile phone, panel computer, television set, display, notebook computer, DPF, navigator.
Above embodiment is only for illustrating the utility model; and the not restriction to utility model; person skilled in the relevant technique; in the situation that not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (28)
1. a backlight module, comprise backboard, frame, LED lamp bar and optical element, described LED lamp bar comprises lamp bar body and is positioned at a plurality of LED lamps on described lamp bar body, it is characterized in that, described backlight module also comprises a plurality of reflection parts, described reflection part is arranged on two adjacent LEDs lamp on described lamp bar body and/or the interval region place of adjacent two LED lamp bars, and the reflecting surface of described reflection part is towards described LED lamp.
2. backlight module according to claim 1, is characterized in that, the luminous dark space forming in described optical element described lamp bar body projection be in the plane positioned at described reflection part described lamp bar body within drop shadow spread in the plane.
3. backlight module according to claim 2, is characterized in that, the luminous dark space forming in described optical element described lamp bar body projection in the plane and described reflection part described lamp bar body projection in the plane overlap.
4. backlight module according to claim 3, is characterized in that, the height of described reflection part is not less than the height of described LED lamp.
5. backlight module according to claim 4, is characterized in that, the height of described reflection part exceeds the end face 0-1mm of described LED lamp.
6. backlight module according to claim 5, is characterized in that, described reflection part is triangular prism shaped, a described triangular prism shaped bottom surface that side is described reflection part.
7. backlight module according to claim 6, is characterized in that, the drift angle of described reflection part is not less than 90 °.
8. backlight module according to claim 7, is characterized in that, the drift angle of described reflection part is 120 °.
9. backlight module according to claim 1, is characterized in that, the height of described reflection part is not less than the height of described LED lamp.
10. backlight module according to claim 9, is characterized in that, the height of described reflection part exceeds the end face 0-1mm of described LED lamp.
11. backlight modules according to claim 1, is characterized in that, described reflection part is triangular prism shaped, a described triangular prism shaped bottom surface that side is described reflection part.
12. backlight modules according to claim 11, is characterized in that, the drift angle of described reflection part is not less than 90 °.
13. backlight modules according to claim 12, is characterized in that, the drift angle of described reflection part is 120 °.
14. backlight modules according to claim 1, is characterized in that, described reflection part is also arranged on the two ends of described LED lamp bar.
15. backlight modules according to claim 14, is characterized in that, described in be arranged on the two ends of described LED lamp bar the height of reflection part equate with the distance of described optical element incidence surface to described LED lamp bottom surface.
16. backlight modules according to claim 15, is characterized in that, described in be arranged on the two ends of described LED lamp bar reflection part be right-angle prismatic cylindricality, a bottom surface that right-angled side faces is described reflection part of described right-angle prismatic cylindricality.
17. backlight modules according to claim 1, is characterized in that, described reflection part is the quadrangular pyramid shape that four sides concave, the bottom surface that the bottom surface of described quadrangular pyramid shape is described reflection part.
18. according to the backlight module described in any one in claim 1 to 17, it is characterized in that, the reflecting surface of described reflection part is fully reflecting surface.
19. 1 kinds of LED lamp bars, comprise lamp bar body and be positioned at a plurality of LED lamps on described lamp bar body, it is characterized in that, described LED lamp bar also comprises a plurality of reflection parts, described reflection part is arranged on the interval region place of the two adjacent LEDs lamp on described lamp bar body, and the reflecting surface of described reflection part is towards described LED lamp.
20. LED lamp bars according to claim 19, is characterized in that, described reflection part is triangular prism shaped, a described triangular prism shaped bottom surface that side is described reflection part.
21. LED lamp bars according to claim 20, is characterized in that, the drift angle of described reflection part is not less than 90 °.
22. LED lamp bars according to claim 21, is characterized in that, the drift angle of described reflection part is 120 °.
23. LED lamp bars according to claim 19, is characterized in that, described reflection part is also arranged on the two ends of described LED lamp bar.
24. LED lamp bars according to claim 23, is characterized in that, described in be arranged on the two ends of described LED lamp bar reflection part be right-angle prismatic cylindricality, a bottom surface that right-angled side faces is described reflection part of described right-angle prismatic cylindricality.
25. LED lamp bars according to claim 19, is characterized in that, the reflecting surface of described reflection part is fully reflecting surface.
26. according to claim 19 to the LED lamp bar described in any one in 25, it is characterized in that, the height of described reflection part is not less than the height of described LED lamp.
27. LED lamp bars according to claim 26, is characterized in that, the height of described reflection part exceeds the end face 0-1mm of described LED lamp.
28. 1 kinds of display unit, is characterized in that, comprise backlight module as described in any one in claim 1 to 18 or the LED lamp bar as described in any one in claim 19 to 27.
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| CN201420074032.1U CN203731289U (en) | 2013-12-31 | 2014-02-20 | LED lamp strips, backlight module and display device |
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| CN201320891855 | 2013-12-31 | ||
| CN201320891855.9 | 2013-12-31 | ||
| CN201420074032.1U CN203731289U (en) | 2013-12-31 | 2014-02-20 | LED lamp strips, backlight module and display device |
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| CN203731289U true CN203731289U (en) | 2014-07-23 |
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| CN107167965A (en) * | 2017-07-04 | 2017-09-15 | 京东方科技集团股份有限公司 | A kind of reflectance coating and backlight module |
| CN108775556A (en) * | 2018-05-23 | 2018-11-09 | 宁波能亮光电科技有限公司 | A kind of smart city LED illumination lamp |
| CN110515241A (en) * | 2019-08-30 | 2019-11-29 | 厦门天马微电子有限公司 | A kind of backlight module, display device and production method |
| CN110967875A (en) * | 2019-12-30 | 2020-04-07 | 深圳市瀚达美电子有限公司 | Vehicle-mounted direct type backlight module and display device |
| CN111028714A (en) * | 2019-12-26 | 2020-04-17 | 惠州市华星光电技术有限公司 | Back plate structure and display device |
| CN111341899A (en) * | 2020-03-03 | 2020-06-26 | 深圳市瑞丰光电子股份有限公司 | LED backlight structure, manufacturing method thereof and electronic equipment |
| CN111965751A (en) * | 2020-09-11 | 2020-11-20 | 谷麦光电科技股份有限公司 | High-reflectivity LED backlight source for micro display |
| CN112578589A (en) * | 2019-09-27 | 2021-03-30 | 海信视像科技股份有限公司 | Display device and backlight module |
| CN113078179A (en) * | 2020-01-06 | 2021-07-06 | 群创光电股份有限公司 | Electronic device |
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2014
- 2014-02-20 CN CN201420074032.1U patent/CN203731289U/en not_active Expired - Lifetime
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| CN107167965A (en) * | 2017-07-04 | 2017-09-15 | 京东方科技集团股份有限公司 | A kind of reflectance coating and backlight module |
| CN108775556A (en) * | 2018-05-23 | 2018-11-09 | 宁波能亮光电科技有限公司 | A kind of smart city LED illumination lamp |
| CN110515241B (en) * | 2019-08-30 | 2022-03-01 | 厦门天马微电子有限公司 | Backlight module, display device and manufacturing method |
| CN110515241A (en) * | 2019-08-30 | 2019-11-29 | 厦门天马微电子有限公司 | A kind of backlight module, display device and production method |
| CN112578589A (en) * | 2019-09-27 | 2021-03-30 | 海信视像科技股份有限公司 | Display device and backlight module |
| CN111028714A (en) * | 2019-12-26 | 2020-04-17 | 惠州市华星光电技术有限公司 | Back plate structure and display device |
| CN110967875A (en) * | 2019-12-30 | 2020-04-07 | 深圳市瀚达美电子有限公司 | Vehicle-mounted direct type backlight module and display device |
| CN113078179A (en) * | 2020-01-06 | 2021-07-06 | 群创光电股份有限公司 | Electronic device |
| CN111341899A (en) * | 2020-03-03 | 2020-06-26 | 深圳市瑞丰光电子股份有限公司 | LED backlight structure, manufacturing method thereof and electronic equipment |
| CN111965751A (en) * | 2020-09-11 | 2020-11-20 | 谷麦光电科技股份有限公司 | High-reflectivity LED backlight source for micro display |
| CN111965751B (en) * | 2020-09-11 | 2022-08-30 | 谷麦光电科技股份有限公司 | High-reflectivity LED backlight source for micro display |
| CN113189817A (en) * | 2021-05-31 | 2021-07-30 | 广东长虹电子有限公司 | Direct type backlight module and liquid crystal display television |
| CN114518619A (en) * | 2022-03-08 | 2022-05-20 | 富盛光电（吴江）有限公司 | Backlight module |
| CN114518619B (en) * | 2022-03-08 | 2024-01-09 | 富盛光电（吴江）有限公司 | Backlight module |
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