CN207424460U - LED light bar, backlight module and liquid crystal display - Google Patents

Abstract

The utility model provides a kind of LED light bar, belongs to display device technical field, the circuit board including several lamp beads and for fixing the lamp bead, and the circuit board is equipped with multiple grooves for being used to that the lamp bead to be fixedly mounted.Backlight module and liquid crystal display provided by the utility model, include above-mentioned LED light bar, LED light bar provided by the utility model, backlight module and liquid crystal display, lamp bead is affixed directly to inside PCB circuit board, LED light bar surface is reduced to the distance of light guide plate, incident side surface frame is done narrow, so that the liquid crystal display appearance and size made is beautiful, package assembly is compact, material is saved, reduces cost of manufacture, while can will be in the light full illumination of lamp bead to light guide plate, increase brightness, save the energy.

Description

LED light bar, backlight module and liquid crystal display

Technical field

The utility model belongs to display device technical field, is to be related to a kind of LED light bar, have the LED more specifically The backlight module and liquid crystal display of lamp bar.

Background technology

Available liquid crystal display is beautiful to pursue, and lamp bead is welded direct on the surface of PCB circuit board, such as Fig. 3 It shown in Fig. 4, needs to occupy certain space when mounted, increases the volume of liquid crystal display, also increase the use of material Amount so that the production cost increases；And for sidelight type backlight module, LED light bar must keep certain spacing with light guide plate, lead Cause incident side frame longer, volume increase, the Aspect Ratio of display screen is discord, it is difficult to be adjusted to length and width dimensions and suitably compare Example, shape are not beautiful enough；Further, since lamp bead is fixed on the surface of circuit board, the light that light source is sent is in scattering, it is impossible to It is irradiated to completely on light guide plate, causes the waste of the energy.

Utility model content

The purpose of this utility model is to provide a kind of LED light bar, to solve the need in the prior art in assembling It occupies larger space and causes to be increased with material, the technical issues of cost increases and energy utilization rate is low.

To achieve the above object, the technical solution adopted in the utility model is：A kind of LED light bar is provided, including several Lamp bead and the circuit board for fixing the lamp bead, the circuit board equipped with multiple are used to that the recessed of the lamp bead to be fixedly mounted Slot.

Further, the depth of the groove causes the surface of the lamp bead to be less than the electricity more than the height of the lamp bead The surface of road plate.

Further, the distance between the surface of the lamp bead and the surface of the circuit board are less than 2mm.

Further, the cross section of the groove is rectangle.

Further, the lamp bead is welded in the slot bottom of the groove.

The advantageous effect of LED light bar provided by the utility model is：Compared with prior art, the utility model LED light Lamp bead is affixed directly to inside PCB circuit board by item, so can both be increased in the light full illumination of lamp bead to light guide plate Brightness saves the energy, and can reduce LED light bar surface to the distance of light guide plate so that incident side surface frame can be done narrow so that The liquid crystal display appearance and size of making is beautiful, and package assembly is compact, saves material, can be applied to all sidelight type backlight modules Display product design in.

The another object of the utility model is to provide a kind of backlight module, is side-light type, including backboard, reflecting piece, leads Tabula rasa, optical diaphragm and LED light bar described in any one of the above embodiments, the reflecting piece, the light guide plate and the optical diaphragm are suitable The secondary inside for being fixed on the backboard, the LED light bar are fixed on medial surface adjacent with the light guide plate on the backboard.

Further, the surface of the LED light bar and the side of the light guide plate are affixed.

Further, the lamp bead of the LED light bar is located between former and later two surfaces of the light guide plate.

Further, equipped with the LED light bar of two or more.

The utility model backlight module as a result of above-mentioned LED light bar, reduces LED light bar surface and arrives light guide plate Distance so that incident side surface frame can be done narrow so that the liquid crystal display appearance and size of making is beautiful, and package assembly is compact, section Material saving reduces cost of manufacture, while can increase brightness by the light full illumination of lamp bead to light guide plate, save the energy.

The another object of the utility model is to provide a kind of liquid crystal display, including liquid crystal panel and any of the above-described institute The backlight module stated.

The advantageous effect of liquid crystal display provided by the utility model is：As a result of above-mentioned backlight module, make Incident side surface frame can do it is narrow so that the liquid crystal display appearance and size of making is beautiful, and package assembly is compact, saves material, Cost of manufacture is reduced, while can be increased brightness by the light full illumination of lamp bead to light guide plate, save the energy.

Description of the drawings

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing is briefly described needed in description, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with Other attached drawings are obtained according to these attached drawings.

Fig. 1 is the structure diagram for the LED light bar that the utility model embodiment provides；

Fig. 2 is the structure diagram for the backlight module that the utility model embodiment provides；

Fig. 3 is the structure diagram for the existing LED light bar that the utility model embodiment provides；

Fig. 4 is the structure diagram for the existing backlight module that the utility model embodiment provides.

Wherein, each reference numeral in figure：

1- circuit boards；2- lamp beads；3- light guide plates；4- optical diaphragms；5- reflecting pieces；6- backboards；7- grooves.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and advantageous effect is more clearly understood, with Lower combination accompanying drawings and embodiments, are further elaborated the utility model.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another On one element or it is connected on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ", The orientation or position relationship of the instructions such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position System is for only for ease of description the utility model and simplifies description rather than instruction or imply that signified device or element are necessary With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.

In the description of the utility model, " multiple " are meant that two or more, unless otherwise clearly specific It limits.

Also referring to Fig. 1 and Fig. 2, now LED light bar provided by the utility model is illustrated.The LED light bar, bag Several lamp beads 2 and the circuit board 1 for fixing the lamp bead 2 are included, the circuit board 1 equipped with multiple is used to that institute to be fixedly mounted State the groove 7 of lamp bead 2.

Compared with prior art, lamp bead 2 is affixed directly in PCB circuit board 1 for LED light bar provided by the utility model Portion so can both increase in the light full illumination of lamp bead 2 to light guide plate 3 brightness, save the energy, and can reduce LED light Surface is to the distance of light guide plate 3 so that incident side surface frame can be done narrow so that the liquid crystal display appearance and size of making is beautiful It sees, package assembly is compact, saves material, can be applied in the display product design of all sidelight type backlight modules.

The utility model is used in side-light type and shows in product, has used the light source of LED lamp bead 2 to greatest extent, has reduced The use of LED lamp bead 2, and play the role of subtracting narrow incident side surface frame, ensure that lamp bead 2 arrives the stable distance of light guide plate 3, simplify The configuration design of LED light bar and light guide plate 3 and it is expected that the problem of gap.

Further, also referring to Fig. 1 to Fig. 2, a kind of specific implementation as LED light bar provided by the utility model Mode, the depth of the groove 7 cause the surface of the lamp bead 2 to be less than the table of the circuit board 1 more than the height of the lamp bead 2 Face.Lamp bead 2 is depressed in completely in groove 7, further such that light source can be all irradiated on light guide plate 3, improves the profit of light source With rate, increase brightness.

Further, please refer to Fig.1 to Fig. 2, a kind of specific embodiment party as LED light bar provided by the utility model The distance between surface of formula, the surface of the lamp bead 2 and the circuit board 1 is less than 2mm.Here distance can be according to actual system It depending on making situation, should not be too large, otherwise increase the thickness of lamp bar.

Further, refering to Fig. 1 and Fig. 2, as a kind of specific embodiment of LED light bar provided by the utility model, The cross section of the groove 7 is rectangle.Here, the cross section of groove 7 can be depending on the shape of lamp bead 2, or circular Or ellipse.

Further, please refer to Fig.1 to Fig. 2, a kind of specific embodiment party as LED light bar provided by the utility model Formula, the lamp bead 2 are welded in the slot bottom of the groove 7.

The another object of the utility model is to provide a kind of backlight module, is side-light type, including backboard 6, reflecting piece 5, Light guide plate 3, optical diaphragm 4 and LED light bar described in any one of the above embodiments, the reflecting piece 5, the light guide plate 3 and the optics Diaphragm 4 is sequentially fixed on the inside of the backboard 6, and the LED light bar is fixed on adjacent with the light guide plate 3 on the backboard 6 Medial surface.

The utility model backlight module as a result of above-mentioned LED light bar, reduces LED light bar surface to light guide plate 3 Distance so that incident side surface frame can be done narrow so that the liquid crystal display appearance and size of making is beautiful, and package assembly is compact, section Material saving reduces cost of manufacture, while can increase brightness by the light full illumination of lamp bead 2 to light guide plate 3, save energy Source.

Further, referring to Fig. 2, a kind of specific embodiment as LED light bar provided by the utility model, described The surface of LED light bar and the side of the light guide plate 3 are affixed.Due to 2 surface of lamp bead between 1 surface of circuit board also have distance, Therefore, lamp bead 2 will not be contacted directly with light guide plate 3.

Further, it is described as a kind of specific embodiment of LED light bar provided by the utility model refering to Fig. 2 The lamp bead 2 of LED light bar is located between former and later two surfaces of the light guide plate 3.Here, it is to limit lamp bead 2 to deviate 3 side of light guide plate, so that the light utilization of light source is high.

Further, referring to Fig. 2, a kind of specific embodiment as LED light bar provided by the utility model, is equipped with The LED light bar of two or more.The quantity of LED light bar can be without being limited thereto depending on actual conditions.

It please refers to Fig.1 to Fig. 2, the utility model also provides a kind of liquid crystal display, including liquid crystal panel and any of the above-described Backlight module described in.

Liquid crystal display provided by the utility model, as a result of above-mentioned backlight module so that incident side surface frame can It is narrow to do so that the liquid crystal display appearance and size of making is beautiful, and package assembly is compact, saves material, reduces cost of manufacture, It can increase brightness by the light full illumination of lamp bead 2 to light guide plate 3, save the energy simultaneously.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims (10)

1.LED lamp bars, it is characterised in that：Circuit board including several lamp beads and for fixing the lamp bead, the circuit board It is equipped with multiple grooves for being used to that the lamp bead to be fixedly mounted.

2. LED light bar as described in claim 1, it is characterised in that：The height that the depth of the groove is more than the lamp bead makes The surface for obtaining the lamp bead is less than the surface of the circuit board.

3. LED light bar as claimed in claim 2, it is characterised in that：The surface of the surface of the lamp bead and the circuit board it Between distance be less than 2mm.

4. LED light bar as described in claim 1, it is characterised in that：The cross section of the groove is rectangle.

5. LED light bar as described in claim 1, it is characterised in that：The lamp bead is welded in the slot bottom of the groove.

6. backlight module, it is characterised in that：For side-light type, including backboard, reflecting piece, light guide plate, optical diaphragm and claim 1 To the LED light bar any one of 5, the reflecting piece, the light guide plate and the optical diaphragm are sequentially fixed on the back of the body The inside of plate, the LED light bar are fixed on medial surface adjacent with the light guide plate on the backboard.

7. backlight module as claimed in claim 6, it is characterised in that：The surface of the LED light bar and the side of the light guide plate Face is affixed.

8. backlight module as claimed in claim 6, it is characterised in that：The lamp bead of the LED light bar is located at the leaded light Between former and later two surfaces of plate.

9. backlight module as claimed in claim 6, it is characterised in that：Equipped with the LED light bar of two or more.

10. liquid crystal display, it is characterised in that：Including the backlight mould any one of liquid crystal panel and claim 6 to 9 Group.