CN205261323U

CN205261323U - LED lamp strip module, LED backlight unit and liquid crystal disply device

Info

Publication number: CN205261323U
Application number: CN201520937773.2U
Authority: CN
Inventors: 华明正; 蔡瑞良; 黄伟
Original assignee: Kaistar Lighting Xiamen Co Ltd
Current assignee: Purui Optoelectronics Xiamen Co ltd
Priority date: 2015-11-23
Filing date: 2015-11-23
Publication date: 2016-05-25
Anticipated expiration: 2025-11-23

Abstract

The utility model relates to a LED lamp strip module (10) and relevant LED backlight unit and liquid crystal disply device (100). LED lamp strip module (10) is including LED lamp strip (11) with to bit architecture (13), LED lamp strip (11) is including circuit board (111) and set up a plurality of LED (113) on circuit board (111), fix on circuit board (111) and separate each other with a plurality of LED (113) bit architecture (13), in addition, be provided with recess (131) to bit architecture (13), and two lateral walls of recess (131) are the ladder surface of the spacing face (133) that is formed with the income plain noodles that is used for the butt light guide plate. The utility model discloses a set up the bit architecture on LED lamp strip, can realize LED and light guide plate and counterpoint in horizontal and fore -and -aft accuracy, and, since to bit architecture and LED lamp strip be separable, so LED sharing nature is well and also better relatively to the structure load of bit architecture.

Description

LED lamp bar module, LED-backlit module and liquid crystal indicator

Technical field

The utility model relates to display technology field, relates in particular to a kind of LED lamp bar module,Plant LED-backlit module and a kind of liquid crystal indicator.

Background technology

In existing side entering-type LED backlight module, the contraposition of LED and LGP is alwaysProblem in user's design. Contraposition is divided into laterally and longitudinal contraposition; If laterally contraposition deviation to some extent,To cause LED light-emitting zone to exceed the incidence surface region of LGP, thereby cause LED light leak to produceRaw obvious luminous point (hotspot); If longitudinally contraposition deviation to some extent, can cause between LED and LGPSpacing unstable, if spacing is too small, LGP easily because of LED produce thermal metamorphism, ifSpacing is excessive, also can produce light leak and reduce the efficiency of light of LED.

Current existing LED and LGP contraposition major part are that LED lamp bar is attached to the back of the body with gumOn plate, and fix LED lamp bar by the spacing of backboard mechanism, but this kind of locate mode certainly willCause multiple tolerance stack, and tolerance complex structure will be unfavorable for processing procedure management and control.

For the defect of above scheme, have at present and propose backlight module to increase location structure, but because ofIncrease material and processing procedure, thereby helped little; Also have and propose Design Orientation structure on LGP,Direct and the LED lamp location by LGP, although it has reduced the tolerance of backlight module assembling,LGP material is generally PC or PMMA, directly contacts the easy yellow of LED rotten, therefore realUse also not general; In addition also have to propose to change LED outward appearance and increase position limiting structure, allow LGPDirect and LED position limiting structure is fixed, but in the time that user selects different light guide plate, LEDCommonality will have problems, and structure is also relatively fragile on load, otherwise will increase LEDWall thickness, causes material cost to improve.

Utility model content

Therefore,, for overcoming defect and the deficiency of prior art, the utility model proposes a kind of LED lampBar module, a kind of LED-backlit module and a kind of liquid crystal indicator.

Particularly, a kind of LED lamp bar module that the utility model embodiment proposes, comprises LEDLamp bar, described LED lamp bar comprises circuit board and is arranged on the multiple LED on described circuit board.Moreover described LED lamp bar module also comprises: aligning structure, be fixed on described circuit board and withDescribed multiple LED is spaced from each other. In addition, described aligning structure is provided with groove, described grooveTwo sidewalls be the stepped surfaces being formed with for the confined planes of the incidence surface of butt LGP.

In an embodiment of the present utility model, described aligning structure is positioned at described in adjacent twoBetween LED.

In an embodiment of the present utility model, the geometric center of described aligning structure and described manyIndividual LED geometric center conllinear separately.

In an embodiment of the present utility model, described aligning structure is transparent configuration.

In an embodiment of the present utility model, described confined planes is higher than the top of described multiple LEDFace and described confined planes are greater than 0.05 millimeter (mm) to the distance of the end face of described multiple LED.

In an embodiment of the present utility model, one of the described groove floor of vicinity of described grooveThe width of end is less than the width away from the other end of described groove floor.

In an embodiment of the present utility model, described aligning structure is attached and is fixed on by surfaceOn described circuit board.

In an embodiment of the present utility model, the quantity of described aligning structure is multiple, and instituteStating multiple aligning structure interval is fixed on described circuit board.

In addition, a kind of LED-backlit module that the utility model embodiment proposes, comprising: aforementionedAnticipate a kind of LED lamp bar module, LGP, reflector plate and diffuser plate; Wherein, described LGPThere is exiting surface and the bottom surface relative with described exiting surface that incidence surface joins with described incidence surface,The described confined planes of the described aligning structure of LED lamp bar module described in described incidence surface butt, described inReflector plate is positioned at a side of the described bottom surface of vicinity of described LGP, described in described diffuser plate is positioned at, leadsOne side of the described exiting surface of vicinity of tabula rasa.

In addition, a kind of liquid crystal indicator that the utility model embodiment proposes, comprises liquid crystal displayPanel and for the LED-backlit module of back lighting is provided to described display panels; Wherein,Described LED-backlit module comprises: aforementioned any one LED lamp bar module, LGP, reflectionSheet and diffuser plate; Described LGP have exiting surface that incidence surface and described incidence surface join withAnd the bottom surface relative with described exiting surface, described in described incidence surface butt LED lamp bar module described inThe described confined planes of aligning structure, described reflector plate is positioned at the described bottom surface of vicinity of described LGPOne side, described diffuser plate is positioned at a side of the described exiting surface of vicinity of described LGP.

As from the foregoing, the utility model by arranging aligning structure on LED lamp bar, and it can be realizedLED and LGP are at horizontal and longitudinal exactitude position; In addition, due to aligning structure and LEDLamp bar is separable, and therefore LED commonality is good, and the structure-bearing of aligning structure is also relatively betterAnd itself can not generate heat thereby can avoid the yellow of LGP heat.

By the detailed description below with reference to accompanying drawing, other side of the present utility model and feature becomeObviously. But it should be known that the only object design for explaining of this accompanying drawing, instead of as this realityWith the restriction of novel scope. Should also be appreciated that, unless otherwise noted, unnecessary drafting to scaleAccompanying drawing, they only try hard to illustrate conceptually structure described herein and flow process.

Brief description of the drawings

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.

Fig. 1 is the stereochemical structure signal of a kind of LED lamp bar module of the utility model embodiment propositionFigure.

Fig. 2 is the top view of the bar of LED lamp shown in Fig. 1 module.

Fig. 3 is the side view of the amplification of the bar of LED lamp shown in Fig. 1 module.

Fig. 4 is the structural representation of a kind of liquid crystal indicator of the utility model embodiment proposition.

Detailed description of the invention

For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, belowBy reference to the accompanying drawings detailed description of the invention of the present utility model is described in detail.

Refer to Fig. 1, it is a kind of LED lamp bar module 10 vertical of the utility model embodimentBody structure schematic diagram. Particularly, LED lamp bar module 10 comprises: LED lamp bar 11 and contraposition knotStructure 13. LED lamp bar 11 comprises circuit board 111 and is arranged on the multiple LED on circuit board 111113. Aligning structure 13 is fixed on circuit board 111 and is for example attached and be fixed on circuit board by surfaceOn 111 and with multiple LED113, be spaced from each other, so aligning structure 13 and LED lamp bar 11Separable. In addition, in Fig. 1, schematically show three aligning structure 13, wherein twoLay respectively at the end of LED lamp bar 11, another one is positioned at the centre position of LED lamp bar 11And between two adjacent LED113; These three aligning structure 13 are disposed on circuitOn plate 111. It is worth mentioning that, in other embodiments, LED lamp bar module 10 also canAn aligning structure is only set, but is understandable that, multiple aligning structure are set and are more conducive toGuarantee the contraposition stability between LED and LGP.

Please also refer to Fig. 1 and Fig. 2, Fig. 2 is overlooking of the bar of LED lamp shown in Fig. 1 module 10Figure. As shown in Figure 2, in the geometric center P of aligning structure 13 and the geometry of each LED113Heart O conllinear, this kind is provided with the exactitude position that is beneficial to LED113 and LGP to promote LEDEfficiency of light. Moreover, preferably, produce for avoiding aligning structure 13 to block LED113Light, aligning structure 13 adopts transparent configuration.

Please also refer to Fig. 1 and Fig. 3, Fig. 3 is the amplification of the bar of LED lamp shown in Fig. 1 module 10Side view. As shown in Figure 3, aligning structure 13 is provided with groove 131, two of groove 131Sidewall is the stepped surfaces that is formed with confined planes 133; Wherein, confined planes 133 is in application processIn for the incidence surface (referring to Fig. 4) of butt LGP. Moreover, the adjacent recess 131 of groove 131The width W 1 of one end of bottom surface is less than the width W 2 away from the other end of groove 131 bottom surfaces, alsoBe W1 < W2; Confined planes 133 arrives each higher than end face and the confined planes 133 of each LED113The distance d of the end face of LED113 is greater than 0.05 millimeter (mm); So, by aligning structure 13Can control the relative position of LGP and LED113, horizontal direction (is also the wide of groove 131Degree direction) can make LGP center and LED113 center via the accurate contraposition of aligning structure 13Precisely contraposition, longitudinal direction (being also the depth direction of groove 131) is by confined planes 133 and LEDThe distance setting of 113 end faces can make LGP and LED113 accurately be positioned. As can be seen here,The present embodiment can be avoided the packing problem that various cumulative limits cause, and makes on LED lamp bar 11Aligning structure 13 and the direct contraposition of LGP, promote thereby realize properties of product.

Refer to Fig. 4, it is the knot of a kind of liquid crystal indicator 100 of the utility model embodimentStructure schematic diagram. As shown in Figure 4, liquid crystal indicator 100 comprise display panels 50 and forProvide the LED-backlit module of back lighting to display panels 50, display panels 50Be arranged on the top of LED-backlit module. Wherein, described LED-backlit module comprises: LED lampBar module 10, LGP 41, reflector plate 43 and diffuser plate 45. LED lamp bar module 10Concrete structure is referring to Fig. 1 to Fig. 3, therefore do not repeat them here. LGP 41 have incidence surface andThe exiting surface that incidence surface joins and the bottom surface relative with exiting surface, incidence surface butt LED lamp bar mouldThe confined planes 133 of the aligning structure 13 of group 10, reflector plate 43 is positioned at the vicinity institute of LGP 41State a side of bottom surface, diffuser plate 45 is positioned at a side of the described exiting surface of vicinity of LGP 41.

In sum, each embodiment of the utility model by arranging contraposition knot on LED lamp barStructure, its can realize LED and LGP laterally with longitudinal exactitude position; In addition, due to contrapositionStructure and LED lamp bar are separable, and therefore LED commonality is good, and the structure of aligning structure is heldPower also relatively better and itself can not generate heat thereby can avoid the yellow of LGP heat.

The above, be only preferred embodiment of the present utility model, not to the utility modelDo any pro forma restriction, although the utility model disclose as above with preferred embodiment, butNot, in order to limit the utility model, any those skilled in the art, are not departing from this realityWithin the scope of new technique scheme, when can utilize the technology contents of above-mentioned announcement make a little change orBeing modified to the equivalent embodiment of equivalent variations, is in every case not depart from technical solutions of the utility model content,Any simple modification of above embodiment being done according to technical spirit of the present utility model, be equal to changeChange and modify, all still belonging in the scope of technical solutions of the utility model.

Claims

1. a LED lamp bar module (10), comprises LED lamp bar (11), described LED lamp bar (11)Comprise circuit board (111) and be arranged on the multiple LED (113) on described circuit board (111); Its featureBe, described LED lamp bar module (10) also comprises: aligning structure (13), is fixed on described circuitPlate (111) is gone up and is spaced from each other with described multiple LED (113); Wherein, described aligning structure (13)Be provided with groove (131), two sidewalls of described groove (131) are and are formed with for butt LGPThe stepped surfaces of confined planes (133) of incidence surface.

2. LED lamp bar module as claimed in claim 1 (10), is characterized in that, described contrapositionStructure (13) is positioned between adjacent two described LED (113).

3. LED lamp bar module as claimed in claim 1 (10), is characterized in that, described contrapositionThe geometric center (P) of structure (13) and described multiple LED geometric center (O) conllinear separately.

4. LED lamp bar module as claimed in claim 1 (10), is characterized in that, described contrapositionStructure (13) is transparent configuration.

5. LED lamp bar module as claimed in claim 1 (10), is characterized in that, described spacingFace (133) arrives described multiple higher than end face and the described confined planes (133) of described multiple LED (113)The distance (d) of the end face of LED (113) is greater than 0.05 millimeter.

6. LED lamp bar module as claimed in claim 1 (10), is characterized in that, described groove(131) width (W1) of one end of the described groove of vicinity (131) bottom surface is less than away from described groove(131) width of the other end of bottom surface (W2).

7. LED lamp bar module as claimed in claim 1 (10), is characterized in that, described contrapositionStructure (13) is attached and is fixed on described circuit board (111) by surface.

8. LED lamp bar module as claimed in claim 1 (10), is characterized in that, described contrapositionThe quantity of structure (13) is multiple, and described multiple aligning structure (13) interval is fixed on described circuit board(111) on.

9. a LED-backlit module, comprising: as described in claim 1 to 8 any oneLED lamp bar module (10), LGP (41), reflector plate (43) and diffuser plate (45); Wherein, instituteState LGP (41) and there is exiting surface and and the described bright dipping that incidence surface and described incidence surface joinThe bottom surface that face is relative, the described aligning structure of LED lamp bar module (10) described in described incidence surface butt(13) described confined planes (133), described reflector plate (43) is positioned at described in the vicinity of described LGP (41)One side of bottom surface, described diffuser plate (45) be positioned at described LGP (41) the described exiting surface of vicinity oneSide.

10. a liquid crystal indicator (100), comprises display panels (50) and for to described liquidLCD panel (50) provides the LED-backlit module of back lighting; Wherein, described LED-backlitModule comprises: the LED lamp bar module (10) as described in claim 1 to 8 any one, leaded lightPlate (41), reflector plate (43) and diffuser plate (45); Described LGP (41) has incidence surface and instituteState exiting surface and the bottom surface relative with described exiting surface that incidence surface joins, described incidence surface buttThe described confined planes (133) of the described aligning structure (13) of described LED lamp bar module (10), described anti-Penetrate sheet (43) and be positioned at a side of the described bottom surface of vicinity of described LGP (41), described diffuser plate (45) positionIn a side of the described exiting surface of vicinity of described LGP (41).