CN211956073U

CN211956073U - Improved backlight source

Info

Publication number: CN211956073U
Application number: CN202020797050.8U
Authority: CN
Inventors: 熊伟
Original assignee: Dongguan Haixian Photoelectric Technology Co ltd
Current assignee: Dongguan Haixian Photoelectric Technology Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-11-17
Anticipated expiration: 2030-05-13

Abstract

The utility model provides an improved backlight source, which comprises a bottom shell, a rubber frame, a lamp strip, a reflective film, a light guide plate, a diffusion film, a lower light-adding film, an upper light-adding film and a glass cover plate, wherein the upper end of the bottom shell is provided with a mounting groove corresponding to the rubber frame, the light guide plate is arranged at the lower end of the rubber frame, the reflective film is glued at the bottom of the mounting groove, the lamp strip is arranged between one side of the light guide plate and the inner side wall of the rubber frame, the diffusion film, the lower light-adding film, the upper light-adding film and the glass cover plate are sequentially arranged at the upper end of the rubber frame from bottom to top, the upper end of the rubber frame is provided with a rectangular accommodating groove matched with the glass cover plate, the rectangular accommodating groove is provided with a front side wall, a rear side wall, a left side wall and a right side wall, two ends of the front side wall and the rear side wall are respectively provided with a first avoiding groove, two adjacent avoiding grooves, the glass cover plate is not easy to break, and the service life of the product is prolonged.

Description

Improved backlight source

Technical Field

The utility model relates to a backlight technical field, concretely relates to backlight of improvement.

Background

With the rapid development of the electro-optical industry, liquid crystal panels have become very mature display devices, and thus are used by various displays, and as a part of the liquid crystal displays, the backlight plays an important role in the displays. Traditional backlight mainly includes the drain pan, glues frame, lamp strip, reflectance coating, light guide plate, diffusion barrier, the membrane that adds lustre to down, goes up the membrane that adds lustre to and glass apron, glues the frame upper end and is equipped with the storage tank with glass apron size adaptation, during the equipment, four angles of glass apron are contradicted with the angle that the storage tank corresponds, makes four angles of glass apron receive the extrusion and produces stress, causes the glass apron breakage easily, leads to the unable normal use of product, reduces product life.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the disappearance that prior art exists, provide a backlight of improvement, four angles that it can avoid glass apron receive the extrusion, avoid four angles of glass apron to produce stress, make glass apron be difficult broken, improve product life.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an improved backlight source comprises a bottom shell, a rubber frame, a lamp strip, a reflecting film, a light guide plate, a diffusion film, a lower brightness enhancement film, an upper brightness enhancement film and a glass cover plate, wherein the upper end of the bottom shell is provided with a mounting groove corresponding to the rubber frame, the rubber frame is mounted in the mounting groove, the light guide plate is arranged at the lower end of the rubber frame, the reflecting film is adhered to the bottom of the mounting groove, the lamp strip is positioned between one side of the light guide plate and the inner side wall of the rubber frame, the upper surface of the lamp strip is provided with a plurality of lamp beads distributed along the length direction of the lamp strip, the diffusion film, the lower brightness enhancement film, the upper brightness enhancement film and the glass cover plate are sequentially arranged at the upper end of the rubber frame from bottom to top, the upper end of the rubber frame is provided with a rectangular accommodating groove matched with the glass cover plate, the glass cover plate is arranged in the rectangular accommodating groove, the rectangular accommodating groove is, the both ends of left side wall and right side wall all are equipped with the second and keep away the position groove, and adjacent first keeps away the position groove and keeps away the position groove intercommunication with the second, one side of right side wall is equipped with the recess, the length direction of right side wall is followed to the recess extends.

As a preferable scheme, the width of the first avoiding groove is 4mm to 6mm, and the depth of the first avoiding groove is 0.4mm to 0.6 mm.

As a preferable scheme, the width of the second avoiding groove is 4mm to 6mm, and the depth of the second avoiding groove is 0.4mm to 0.6 mm.

As a preferred scheme, one side of the rubber frame is provided with a wiring groove corresponding to the wires on the lamp strip, and one side of the wiring groove is provided with a threading opening for the wires to be outwards spread.

As a preferred scheme, the middle part of the lamp strip is provided with an FPC flexible circuit board, and the rubber frame is provided with a notch for the FPC flexible circuit board to penetrate out.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, through setting up the rectangle storage tank, the rectangle storage tank has preceding lateral wall, back lateral wall, left side wall and right side wall, the both ends of preceding lateral wall and back lateral wall all are equipped with first keep away the position groove, the both ends of left side wall and right side wall all are equipped with second keep away the position groove, adjacent first keep away position groove and second keep away the position groove and communicate, four angles of glass apron can not receive the extrusion of preceding lateral wall, back lateral wall, left side wall and right side wall during the equipment, thereby avoid four angles of glass apron to produce stress, make glass apron be difficult for breakage, improve product life; one side through right side wall is equipped with the recess, the length direction of recess along right side wall extends, but the reducible material quantity of recess reduces material cost, is favorable to gluing the injection moulding of frame simultaneously.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a schematic view of an assembly structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

fig. 3 is a schematic view illustrating the assembly of the plastic frame, the light guide plate and the light bar according to the embodiment of the present invention;

fig. 4 is a top view of the rubber frame according to the embodiment of the present invention;

FIG. 5 is a schematic view of the assembly of the rubber frame and the glass cover plate according to the embodiment of the present invention;

fig. 6 is a partially enlarged schematic view of a portion a in fig. 5.

The attached drawings indicate the following:

10-a bottom shell; 101-mounting grooves; 11-a reflective film;

12-a light guide plate; 13-a light bar; 131-lamp beads;

132-FPC flexible circuit board; 14-glue frame; 141-a wiring trough;

142-a threading opening; 143-notch; 144-a groove;

15-a receiving groove; 151-front side wall; 152-rear side wall;

153-left side wall; 154-right side wall; 155-a first avoiding groove;

156-second avoidance slot; 16-a diffusion membrane; 17-lower brightness enhancement film;

18-a brightness enhancement film; 19-glass cover plate.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1-6, an improved backlight source includes a bottom case 10, a plastic frame 14, a light bar 13, a reflective film 11, a light guide plate 12, a diffusion film 16, a lower light-adding film 17, an upper light-adding film 18 and a glass cover plate 19, wherein an installation groove 101 corresponding to the plastic frame 14 is arranged at the upper end of the bottom case 10, the plastic frame 14 is installed in the installation groove 101, the light guide plate 12 is arranged at the lower end of the plastic frame 14, the reflective film 11 is adhered to the bottom of the installation groove 101, the light bar 13 is located between one side of the light guide plate 12 and the inner side wall of the plastic frame 14, the upper surface of the light bar 13 is provided with a plurality of beads 131 distributed along the length direction thereof, the diffusion film 16, the lower light-adding film 17, the upper light-adding film 18 and the glass cover plate 19 are sequentially arranged at the upper end of the plastic frame 14 from bottom to top, the upper end of the plastic frame 14 is provided with, the rectangular accommodating groove 15 is provided with a front side wall 151, a rear side wall 152, a left side wall 153 and a right side wall 154, two ends of the front side wall 151 and the rear side wall 152 are respectively provided with a first avoiding groove 155, the width b1 of the first avoiding groove 155 is 4 mm-6 mm, the depth h1 of the first avoiding groove 155 is 0.4 mm-0.6 mm, two ends of the left side wall 153 and the right side wall 154 are respectively provided with a second avoiding groove 156, the width b2 of the second avoiding groove 156 is 4 mm-6 mm, the depth h2 of the second avoiding groove 156 is 0.4 mm-0.6 mm, the adjacent first avoiding groove 155 and the adjacent second avoiding groove 156 are communicated, one side of the right side wall 154 is provided with a groove 144, the groove 144 extends along the length direction of the right side wall 154, one side of the rubber frame 14 is provided with a wire passing groove 141 corresponding to a wire on the light bar 13, one side of the wire passing groove 141 is provided with a threading port 142 for the wire to pass out, the middle of the light bar 13 is provided with an FPC flexible circuit board 132, and the rubber frame 14 is provided with a notch 143 for the FPC flexible circuit board 132 to penetrate out.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments by the technology of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. An improved backlight source is characterized by comprising a bottom shell, a rubber frame, a lamp strip, a reflecting film, a light guide plate, a diffusion film, a lower light-adding film, an upper light-adding film and a glass cover plate, wherein the upper end of the bottom shell is provided with a mounting groove corresponding to the rubber frame, the rubber frame is mounted in the mounting groove, the light guide plate is arranged at the lower end of the rubber frame, the reflecting film is adhered to the bottom of the mounting groove, the lamp strip is positioned between one side of the light guide plate and the inner side wall of the rubber frame, the upper surface of the lamp strip is provided with a plurality of lamp beads distributed along the length direction of the lamp strip, the diffusion film, the lower light-adding film, the upper light-adding film and the glass cover plate are sequentially arranged at the upper end of the rubber frame from bottom to top, a rectangular accommodating groove matched with the glass cover plate is arranged at the upper end of the rubber, preceding lateral wall and back lateral wall's both ends all are equipped with the first groove of keeping away, the both ends of left side wall and right side wall all are equipped with the second and keep away the groove, and adjacent first keeps away a groove and a second and keeps away a groove intercommunication, one side of right side wall is equipped with the recess, the length direction of right side wall is followed to the recess extends.

2. The improved backlight source as claimed in claim 1, wherein the width of the first avoiding groove is 4mm to 6mm, and the depth of the first avoiding groove is 0.4mm to 0.6 mm.

3. The improved backlight source as claimed in claim 1, wherein the width of the second avoiding groove is 4mm to 6mm, and the depth of the second avoiding groove is 0.4mm to 0.6 mm.

4. The improved backlight source of claim 1, wherein a wiring groove corresponding to the wires on the light bar is formed on one side of the rubber frame, and a threading opening for the wires to pass out is formed on one side of the wiring groove.

5. An improved backlight source as claimed in claim 1, wherein the middle of the light bar is provided with a Flexible Printed Circuit (FPC), and the rubber frame is provided with a notch for the FPC to penetrate out.