CN103017031B - Light-emitting device, backlight module and display device - Google Patents

Light-emitting device, backlight module and display device Download PDF

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Publication number
CN103017031B
CN103017031B CN201210518646.XA CN201210518646A CN103017031B CN 103017031 B CN103017031 B CN 103017031B CN 201210518646 A CN201210518646 A CN 201210518646A CN 103017031 B CN103017031 B CN 103017031B
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China
Prior art keywords
light
pedestal
led
emitting device
slide rail
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Expired - Fee Related
Application number
CN201210518646.XA
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Chinese (zh)
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CN103017031A (en
Inventor
张晓�
李鹏
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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Priority to CN201210518646.XA priority Critical patent/CN103017031B/en
Publication of CN103017031A publication Critical patent/CN103017031A/en
Application granted granted Critical
Publication of CN103017031B publication Critical patent/CN103017031B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The present invention relates to light emitting source equipment technical field, the light-emitting device that particularly a kind of LED spacing is adjustable.This light-emitting device comprises: pedestal and multiple luminescence unit, and pedestal is provided with slide rail, and luminescence unit can move on slide rail, and adjacent light-emitting units is connected by flexible wire.The light-emitting device that the embodiment of the present invention provides, by arranging multiple luminescence unit any flexible wire coordinating and can bend arbitrarily that slides on slide rail simultaneously, can regulate arbitrarily the spacing between adjacent light-emitting units, structure is simple, easy to operate, reduce production cost, and light modulation efficiency can be improved.

Description

Light-emitting device, backlight module and display device
Technical field
The present invention relates to display technique field, light-emitting device, the backlight module applying this light-emitting device and display device that particularly a kind of LED spacing is adjustable.
Background technology
Due to LED(LightEmittingDiode, light emitting diode) have that brightness is high, excitation is high, the life-span is long, good reliability, without multiple advantages such as mercury pollution, the proportion as light source in backlight module increases gradually.In prior art, LED lamp bar is evenly arranged on reflector plate by down straight aphototropism mode set usually.Because the energy distribution of LED emergent light is lambert's type, concentrate in the certain angle of optical axis.In order to obtain uniform illumination, usually realized by the light mixing distance of the quantity or raising backlight that increase LED, the LED number that the display device which results in application direct-light type LED backlight module uses is more, and cost is higher, and thickness is thicker.
In recent years, by designing the optical lens be increased in LED, effectively improve the lighting angle of LED, greatly reducing the usage quantity of LED, reducing the cost of direct-light type LED backlight module accordingly.
At present, the LED lamp bar with optical lens usually adopts and is welded on PCB by plurality of LEDs lamp, as shown in Figure 1, is the down straight aphototropism mode set structural representation with optical lens a kind of in prior art.Backlight module mainly comprises: side reflector plate 1 ', backboard 2 ', PCB(PrintedCircuitBoard, printed circuit board (PCB)) 3 ', end reflector plate 4 ', LED 5 ', secondary optical lens (Lens) 6 ', diffusion sheet 7 '.Wherein in figure, H represents the light mixing distance (distance normally bottom reflector plate top to diffuser plate, the end) of backlight module.Light mixing distance mainly contains lighting angle and the spacing decision of LED.
Fig. 2 is the another kind of LED lamp bar schematic diagram with optical lens in prior art, and this kind of lamp bar at least comprises two LED 5 ' and assembling secondary optical lens 6 ' thereon, and LED 5 ' is welded on PCB3 '.If change the spacing of two LED lamp 5 ', need to redesign, make PCB, and again mount LED 5 ' and assembling secondary optical lens 6 '.Backlight module for frequent change LED spacing and light mixing distance is very not convenient.
Fig. 3 is the PCB structural representation mounting single LED lamp.It comprises: PCB3 ', the secondary optical lens 6 ' being mounted on the LED 5 ' on PCB3 ' and being assemblied in LED 5 '.The advantage mounting the lamp bar of single LED lamp is: if will change the spacing of two LED lamp, as long as change the installation site of two LED lamp, and without the need to again making LED lamp bar.But its shortcoming is: it is directly fixed on the backboard of backlight module, because PCB quantity is more, be unfavorable for installing; And due to LED is not be fixed on same lamp bar, and when LED being fixed on backboard, the distance of two LEDs and the distance of actual needs produce error, very easily affect the display effect of backlight module.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is to provide a kind of light-emitting device, with the spacing in the light-emitting device overcoming prior art between LED single and non-adjustable cause needing the light-emitting device of multiple LED different spacing to cause increase the weight of production cost, use the inconvenient defect simultaneously affecting backlight display effect.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of light-emitting device, comprising: pedestal and multiple luminescence unit, described pedestal is provided with slide rail, and described luminescence unit can move on slide rail, and adjacent light-emitting units is connected by wire.
Further, described luminescence unit comprises LED and PCB, and described LED is arranged on PCB.
Further, LED is provided with secondary optical lens.
Further, described pedestal is tabular, and described pedestal relative both sides are along its length provided with slide rail, and described PCB slides on slide rail.
Further, described pedestal relative both sides along its length have towards the bending of base central, have gap between described bending and base body, and two ends of described PCB are inserted in described bending, and can slide along bending.
Further, described bending is provided with scale along its length.
Further, also comprise fixture, described luminescence component is fixed on pedestal by fixture.
Further, described fixture has arc groove, and described groove and pedestal form cavity, and described wire is through this cavity; The two ends of described groove snap in gap.
Further, described pedestal is provided with mounting hole.
(3) beneficial effect
The light-emitting device that the embodiment of the present invention provides, by arranging multiple luminescence unit any flexible wire coordinating and can bend arbitrarily that slides on slide rail simultaneously, can regulate arbitrarily the spacing between adjacent light-emitting units, structure is simple, easy to operate, reduce production cost, and light modulation efficiency can be improved.
Accompanying drawing explanation
Fig. 1 is a kind of direct type backlighting system structural representation with optical lens in prior art;
Fig. 2 is the another kind of LED lamp bar schematic diagram with optical lens in prior art;
Fig. 3 is the PCB structural representation mounting single LED lamp;
Fig. 4 is embodiment of the present invention luminous device structure schematic diagram;
Fig. 5 is one of them view after embodiment of the present invention light-emitting device adjustment LED spacing;
Fig. 6 is the syndeton schematic diagram of two adjacent PCB in embodiment of the present invention light-emitting device;
Fig. 7 is anchor structure side view in embodiment of the present invention light-emitting device;
Fig. 8 is the structural representation with fixture in embodiment of the present invention light-emitting device;
Fig. 9 is the cut-open view of Fig. 8.
Wherein:
1 ': side reflector plate; 2 ': backboard; 3 ', 3:PCB; 4 ': end reflector plate; 5 ', 7:LED lamp; 6 ', 4: secondary optical lens; 7 ': diffuser plate; 1: pedestal; 2: mounting hole; 5: wire; 6: fixture; A: positive source; B: power cathode.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As illustrated in figures 4-5, light-emitting device provided by the invention, comprising: pedestal 1 and multiple luminescence unit, and this pedestal 1 is provided with slide rail, and luminescence unit can slide on slide rail, and adjacent light-emitting units is connected by flexible wire.Wherein, flexible wire can bend arbitrarily.
By arranging multiple luminescence unit any flexible wire coordinating and can bend arbitrarily that slides on slide rail simultaneously, can regulate arbitrarily the spacing between adjacent light-emitting units, structure is simple, easy to operate, reduces production cost, and can improve light modulation efficiency.
Concrete, this luminescence unit comprises LED 7 and PCB3, and LED is arranged on PCB3.Preferably, described LED 7 is provided with optical lens, and described optical lens is secondary optical lens 4.By arranging secondary optical lens 4 in LED 7, effectively improve the lighting angle of LED 7.
Luminophor in the present embodiment, except adopting LED 7, also can adopt other luminophors.
As shown in Figure 5, the both positive and negative polarity of adjacent two PCB is connected by electrified wire, when the spacing of adjacent LED lamp changes, by the spacing of pcb board slip and adjustable adjacent LED lamp on slide rail, when the spacing of LED is less than original spacing, because this electrified wire is made up of flexible wire, this wire can be bent arbitrarily, spacing is reduced rear LED and connect.
Wherein, this pedestal 1 is tabular, and pedestal 1 relative both sides are along its length provided with slide rail, and PCB3 slides on slide rail.Concrete, this pedestal 1 relative both sides along its length have towards the bending 11 of base central, have gap between described bending 11 and base body, and two ends of described PCB3 are inserted in bending 11, and slide along bending 11.
In order to show the spacing between LED 7 intuitively, bending 11 being provided with scale, being convenient to so accurately adjust the spacing between LED 7.
As shown in Figure 6, positive source A is connected with power cathode B by adjacent LED PCB3 electrified wire 5, forms the connection on circuit, and then multiple LED is together in series.
As Figure 7-9, this light-emitting device also comprises fixture 6, and this luminescence component is fixed on pedestal 1 by fixture 6, and wherein fixture 6 has arc groove, and described groove and pedestal form cavity, and described wire is through this cavity; The two ends of described groove snap in gap.When adjusting the spacing of LED 7, the position of LED can be fixed by fixture 6, and then LED 7 is fixed on pedestal 1.
Pedestal 1 arranges mounting hole 2, by mounting hole 2, pedestal 1 is fixed on the backboard of back light system.
When changing the light mixing distance of backlight module, not needing to redesign this light-emitting device, only need change the quantity of PCB and the spacing of adjacent LED lamp of the single LED lamp of attachment under the prerequisite meeting brightness and uniformity requirements, easy for installation.
The light-emitting device that the embodiment of the present invention provides, by arranging multiple luminescence unit any flexible wire coordinating and can bend arbitrarily that slides on slide rail simultaneously, can regulate arbitrarily the spacing between adjacent light-emitting units, structure is simple, easy to operate, reduce production cost, and light modulation efficiency can be improved.
The embodiment of the present invention also provides a kind of backlight module, comprises above-mentioned light-emitting device.
The embodiment of the present invention also provides a kind of display device, comprises above-mentioned backlight module.Described display device can be: any product or parts with Presentation Function such as liquid crystal panel, Electronic Paper, oled panel, LCD TV, liquid crystal display, digital album (digital photo frame), mobile phone, panel computer.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.

Claims (6)

1. a light-emitting device, it is characterized in that, comprising: pedestal and multiple luminescence unit, described pedestal is provided with slide rail, described luminescence unit can slide on slide rail, adjacent light-emitting units is connected by flexible wire, and LED is provided with secondary optical lens, by arranging multiple luminescence unit any flexible wire coordinating and can bend arbitrarily that slides on slide rail simultaneously, the spacing between adjacent light-emitting units can be regulated arbitrarily, described luminescence unit comprises LED and PCB, and described LED is arranged on PCB
Also comprise fixture, luminescence component is fixed on pedestal by described fixture,
Described fixture has arc groove, and described groove and pedestal form cavity, and described wire is through this cavity;
Described pedestal relative both sides along its length have towards the bending of base central, have gap between described bending and pedestal, and two ends of described PCB are inserted in described bending, and can slide along bending, and the two ends of described groove snap in gap.
2. light-emitting device as claimed in claim 1, it is characterized in that, described pedestal is tabular, and described pedestal relative both sides are along its length provided with slide rail, and described PCB slides on slide rail.
3. light-emitting device as claimed in claim 2, is characterized in that, described bending is provided with scale along its length.
4. light-emitting device as claimed in claim 1, it is characterized in that, described pedestal is provided with mounting hole.
5. a backlight module, is characterized in that, comprises the arbitrary described light-emitting device of claim 1-4.
6. a display device, is characterized in that, comprises backlight module according to claim 5.
CN201210518646.XA 2012-12-05 2012-12-05 Light-emitting device, backlight module and display device Expired - Fee Related CN103017031B (en)

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Application Number Priority Date Filing Date Title
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CN103017031B true CN103017031B (en) 2015-11-25

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103411755B (en) * 2013-08-08 2015-11-11 深圳市华星光电技术有限公司 A kind of optical testing device
CN104456274B (en) * 2013-09-18 2017-04-12 通用电气照明解决方案有限公司 Light emitting diode (LED) street lamp
CN103712112B (en) * 2013-12-18 2016-02-24 京东方科技集团股份有限公司 A kind of lamp bar and use the method for this lamp bar determination pointolite spacing
CN106094337A (en) * 2016-08-11 2016-11-09 昆山龙腾光电有限公司 A kind of LED lamp bar and backlight module
CN106504695B (en) * 2016-12-15 2019-03-01 深圳市奥拓立翔光电科技有限公司 A kind of control method of flexible LED display local luminance adjustment
CN107610609A (en) * 2017-10-27 2018-01-19 深圳市国佳光电科技有限公司 A kind of LED display and its manufacture method
CN112230476B (en) * 2020-11-09 2022-08-16 天长市创联电子有限公司 Be applicable to TV liquid crystal backlight display general lamp strip

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Publication number Priority date Publication date Assignee Title
CN101398565A (en) * 2007-09-28 2009-04-01 群康科技(深圳)有限公司 Back light module unit and LCD device
CN101725939A (en) * 2008-10-21 2010-06-09 华映视讯(吴江)有限公司 Supporting seat and direct type backlight module
CN102628568A (en) * 2012-03-28 2012-08-08 达运精密工业(苏州)有限公司 Light source component and backlight module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101398565A (en) * 2007-09-28 2009-04-01 群康科技(深圳)有限公司 Back light module unit and LCD device
CN101725939A (en) * 2008-10-21 2010-06-09 华映视讯(吴江)有限公司 Supporting seat and direct type backlight module
CN102628568A (en) * 2012-03-28 2012-08-08 达运精密工业(苏州)有限公司 Light source component and backlight module

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