CN215340631U

CN215340631U - Integral LED backlight

Info

Publication number: CN215340631U
Application number: CN202121645002.8U
Authority: CN
Inventors: 储敬; 憨正飞; 徐剑; 金轲
Original assignee: Boxun Photoelectric Technology Hefei Co ltd
Current assignee: Boxun Photoelectric Technology Hefei Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-12-28
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses an integral LED backlight source, which belongs to the technical field of flat backlight sources and comprises an FPC (flexible printed circuit) lamp panel, wherein an L-shaped connecting plate is arranged on the FPC lamp panel, an insert is arranged on the L-shaped connecting plate, a rectangular packaging groove is formed in the middle of the FPC lamp panel, a plurality of mounting grooves are formed in the bottom end of the packaging groove at equal intervals, an LED chip lamp is arranged in each mounting groove, a light emitting surface is arranged on each LED chip lamp, clamping grooves are formed in the periphery of each packaging groove, a lampshade is connected to each clamping groove, and the lampshade covers the packaging grooves; the chip lamps are uniformly packaged in the packaging grooves to replace the traditional single packaging, the chip lamps are not influenced by the edge of a single packaging groove on the light emitting angle in the packaging grooves, the 180-degree light emitting can be almost realized, the strong cross light phenomenon does not exist among the lamps, the Hotspot phenomenon of pictures can be effectively reduced for high-end projects with small A/P values, and the integral linearity is better than that of a conventional LED.

Description

Integral LED backlight

Technical Field

The utility model relates to the technical field of flat-panel backlights, in particular to an integral LED backlight.

Background

The backlight source is a light source located behind a Liquid Crystal Display (LCD), and its luminous effect will directly affect the visual effect of the liquid crystal display module (LCM). The liquid crystal display does not emit light itself, and it displays a pattern or its result of modulating light. At present, under the condition of not using Mini LEDs and Micro LEDs, the conventional NB and TPC backlights adopt LED side light emitting designs. Along with the promotion of customer ultra-thin, the demand of super narrow, the product A/P value (LED light emitting area and AA district distance/pitch value between the LED granule) is littleer and more, the picture goes into light Hotspot (whole light and shade alternate lamp shadow in the picture) phenomenon will be difficult to improve more, the chip lamp of traditional lamp strip all is individual encapsulation, as shown in fig. 6, the chip lamp of individual encapsulation, there is fixed interval between its packaging groove, piece through SMT, after the combination with the light guide plate, it has fixed interval to go into light portion, lead to the luminous angle of lamp strip only to have 120 degrees, can have obvious cross light (i.e. Hotspot phenomenon).

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an integrated LED backlight for solving the above-mentioned problems encountered in the prior art.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides an integral LED backlight, includes the FPC lamp plate, be equipped with L type connecting plate on the FPC lamp plate, be equipped with the plug-in components on the L type connecting plate, set up the encapsulation groove of rectangle on the intermediate position of FPC lamp plate, the equidistance is equipped with a plurality of mounting groove on the bottom in encapsulation groove, be equipped with LED chip lamp in the mounting groove, be equipped with the light emitting area on the LED chip lamp, be equipped with the draw-in groove around the encapsulation groove, be connected with the lamp shade on the draw-in groove, the lamp shade covers on the encapsulation groove, the top in encapsulation groove is equipped with the TVS pipe.

Furthermore, reentrant angles are arranged on the periphery of the packaging groove, and the reentrant angles gradually increase from the inside of the packaging groove to the outside.

Further, the lamp shade is made of transparent materials, a clamping column is arranged on the bottom end of the lamp shade and is matched with the clamping groove, a first clamping plate is arranged on the clamping column in an inclined mode, a fixing hole is formed in the first clamping plate, a second clamping plate is arranged on the top end of the first clamping plate, a plurality of locking grooves are formed in the second clamping plate, and the first clamping plate is connected with the clamping column through a telescopic spring.

Furthermore, a baffle plate is arranged at the top end of the clamping groove, a plurality of locking columns are arranged on the bottom end of the baffle plate in an array mode, and a push-pull rod penetrates through the side end of the clamping groove.

The utility model has the beneficial effects that:

the chip lamps are uniformly packaged in the packaging grooves to replace the traditional single packaging, the chip lamps are not influenced by the edge of a single packaging groove on the light emitting angle in the packaging grooves, the 180-degree light emitting can be almost realized, strong cross light phenomenon does not exist among the lamps, and the Hotspot phenomenon of pictures can be effectively reduced for high-end projects with small A/P values, so that the integral linearity is better than that of a conventional LED; meanwhile, the lamp shade can be conveniently mounted and dismounted through the matching of the clamping columns and the clamping grooves.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts;

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention with the lamp cover removed;

FIG. 3 is a schematic view of a lamp housing;

FIG. 4 is a schematic view of the structure of the card column;

FIG. 5 is a schematic view of a card slot;

FIG. 6 is a schematic view of the light angle of a conventional light bar;

fig. 7 is a schematic view of the light emitting angle of the light bar of the present invention.

The reference numbers in the figures illustrate:

1. an FPC lamp panel; 2. an L-shaped connecting plate; 3. a plug-in; 4. a packaging groove; 5. mounting grooves; 6. an LED chip lamp; 7. a card slot; 8. a lamp shade; 9. a TVS tube; 10. a light emitting face; 11. a reentrant angle; 12. clamping the column; 13. a first clamping plate; 14. a second clamping plate; 15. locking the groove; 16. a tension spring; 17. a push-pull rod; 18. a baffle plate; 19. a lock cylinder; 20. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

An integral LED backlight source is disclosed, as shown in figures 1-5, comprising an FPC lamp panel 1, an L-shaped connecting plate 2 is arranged on the FPC lamp panel 1, a plug-in 3 is arranged on the L-shaped connecting plate 2, a rectangular packaging groove 4 is arranged on the middle position of the FPC lamp panel 1, a plurality of mounting grooves 5 are equidistantly arranged at the bottom end of the packaging groove 4, LED chip lamps 6 are arranged in the mounting grooves 5, a light emitting surface 10 is arranged on the LED chip lamps 6, clamping grooves 7 are arranged around the packaging groove 4, a lampshade 8 is connected on the clamping groove 7, the lampshade 8 covers the packaging groove 4, TVS tubes 9 are arranged above the packaging groove 4, concave angles 11 are arranged around the packaging groove 4, the concave angles 11 are gradually increased outwards from the inside of the packaging groove 4, the distance between the mounting grooves 5 is small, so that each LED chip lamp 6 can be almost seen as a complete row when being mounted on the mounting groove 5, and the LED chip lamps 6 can be uniformly packaged in the packaging groove 4, thus, the light emitting angle of each LED chip lamp 6 will be enlarged (the light emitting angle of the LED chip packaged separately is about 120 degrees), as shown in fig. 7, the light emitting angle of each chip can almost reach 180 degrees, which can effectively reduce the cross light phenomenon between the LED lamps, and the concave angle 11 can reduce the blocking influence of the periphery of the packaging groove 4 on the light, further improve the cross light phenomenon; the lampshade 8 is made of transparent materials, a clamping column 12 is arranged on the bottom end of the lampshade 8, the clamping column 12 is matched with the clamping groove 7, a first clamping plate 13 obliquely arranged is arranged on the clamping column 12, a fixing hole 20 is formed in the first clamping plate 13, a second clamping plate 14 is arranged on the top end of the first clamping plate 13, a plurality of locking grooves 15 are formed in the second clamping plate 14, the first clamping plate 13 is connected with the clamping column 12 through an expansion spring 16, a baffle 18 is arranged on the top end of the clamping groove 7, a plurality of locking columns 19 are arranged on the bottom end of the baffle 18, a push-pull rod 17 penetrates through the side end of the clamping groove 7, the dust of the lampshade 8 can be reduced, the first clamping plate 13 can be clamped into the clamping groove 7 through the expansion spring 16, then the clamping column 19 is matched with the locking grooves 15 to be fixed, the lampshade can be detached through the matching of the push-pull rod 17 and the fixing hole 20, and the lampshade 8 can be conveniently mounted and detached.

When in use, the LED chip lamp 6 is arranged in the packaging groove 4, thereby changing the traditional single packaging into the integral packaging, the chip in the packaging groove 4 is not influenced by the edge of a single packaging groove on the light-emitting angle, the LED lamp can almost emit light rays at 180 degrees, the linearity is better than that of the conventional LED, then the clamping column 12 is inserted into the clamping groove 7, the extension spring 16 extends and retracts, the first clamping plate 13 moves downwards, and after the first clamping plate 13 completely enters the clamping groove 7, as the resistance is lost, the extension spring 16 rebounds, thereby returning the first catch plate 13 to its original state, then, the lamp shade 8 is installed on the FPC lamp panel 1 through the matching of the locking columns 19 and the locking grooves 15, when the clamping column is required to be disassembled, the push-pull rod 17 is pushed, the push-pull rod 17 can enter the fixing hole 20, the first clamping plate 13 is compressed to the outlet, the clamping column 12 can be detached from the clamping groove 7, and the assembling and disassembling of workers are facilitated.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides an integral LED backlight, includes FPC lamp plate (1), its characterized in that, be equipped with L type connecting plate (2) on FPC lamp plate (1), be equipped with plug-in components (3) on L type connecting plate (2), set up encapsulation groove (4) of rectangle on the intermediate position of FPC lamp plate (1), the equidistance is equipped with a plurality of mounting groove (5) on the bottom of encapsulation groove (4), be equipped with LED chip lamp (6) in mounting groove (5), be equipped with light emitting area (10) on LED chip lamp (6), be equipped with draw-in groove (7) all around of encapsulation groove (4), be connected with lamp shade (8) on draw-in groove (7), lamp shade (8) cover is on encapsulation groove (4), the top of encapsulation groove (4) is equipped with TVS pipe (9).

2. An integrated LED backlight as claimed in claim 1, wherein the packaging groove (4) is provided with recessed corners (11) around the circumference, and the recessed corners (11) gradually increase from the inside of the packaging groove (4) to the outside.

3. The integrated LED backlight source of claim 1, wherein the lampshade (8) is made of a transparent material, the bottom end of the lampshade (8) is provided with a clamping column (12), the clamping column (12) is matched with the clamping groove (7), the clamping column (12) is provided with a first clamping plate (13) which is obliquely arranged, the first clamping plate (13) is provided with a fixing hole (20), the top end of the first clamping plate (13) is provided with a second clamping plate (14), the second clamping plate (14) is provided with a plurality of locking grooves (15), and the first clamping plate (13) is connected with the clamping column (12) through a telescopic spring (16).

4. The integrated LED backlight source of claim 1, wherein a baffle (18) is arranged on the top end of the clamping groove (7), a plurality of locking columns (19) are arranged on the bottom end of the baffle (18) in an array manner, and a push-pull rod (17) penetrates through the side end of the clamping groove (7).