CN213659145U

CN213659145U - Double-sided backlight module structure

Info

Publication number: CN213659145U
Application number: CN202022682035.1U
Authority: CN
Inventors: 张明; 苏圣翔; 潘泉
Original assignee: SUZHOU FUHUA ELECTRONIC TECHNOLOGY CO LTD
Current assignee: SUZHOU FUHUA ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-09
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses a double-sided backlight module structure, which comprises a frame body, wherein the frame body comprises a first frame and a second frame, a first groove is arranged on one side of the first frame, which is close to a first surface, and a second groove is arranged on one side of the second frame, which is close to a second surface; the first surface and the second surface are both light-emitting surfaces of a double-sided backlight module structure; the bearing plate comprises a first bending part and a second bending part, the first bending part is bent towards the first surface, the second bending part is bent towards the second surface, the first bending part is arranged in the first groove, and the second bending part is arranged in the second groove; the light emitting lamp strips are respectively arranged on the first bending part and the second bending part; and the light guide plates are respectively arranged on two sides of the bearing plate and correspond to the light-emitting lamp bars in position. The utility model discloses can save the edge width of framework under the condition that provides two-sided backlight, reduce the visual region of liquid crystal display panel to the size at framework edge, realize the narrow frame theory.

Description

Double-sided backlight module structure

Technical Field

The utility model relates to a liquid crystal display panel field, in particular to two-sided backlight unit structure.

Background

Liquid crystal display devices, which are widely used with their excellent quality, include a backlight module for providing a light source, and a liquid crystal panel disposed above the backlight module. The backlight module is mainly divided into a direct type backlight module and a side type backlight module according to different light source distribution positions. The direct type backlight module is characterized in that a light source is arranged below a liquid crystal panel, and a surface light source is directly formed and provided for the liquid crystal panel. The side-in type backlight module is characterized in that a light source is arranged on the side surface of the liquid crystal panel, and light converts a linear light source into a surface light source through a light guide plate and provides the surface light source for the liquid crystal panel.

Most of the existing lateral backlight modules are of single-sided display structures, and the increasingly updated commercial display and hoisting display requirements are difficult to meet. A few double-sided display structures are complex in structure, wide in peripheral frames, thick and heavy in overall structure and difficult to achieve light and thin.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-sided backlight module structure to solve the above-mentioned technical problem who exists among the prior art.

In order to solve the above technical problem, the utility model provides a two-sided backlight unit structure, include:

a frame body, comprising: the frame comprises a first frame and a second frame which are arranged in parallel, wherein a first groove is formed in one side, close to the first surface, of the first frame, and a second groove is formed in one side, close to the second surface, of the second frame; the first surface and the second surface are both light-emitting surfaces of a double-sided backlight module structure;

the bearing plate comprises a first bending part and a second bending part, the first bending part is bent towards the first surface, the second bending part is bent towards the second surface, the first bending part is arranged in the first groove, and the second bending part is arranged in the second groove;

the light emitting lamp strips are respectively arranged on the first bending part and the second bending part;

and the light guide plates are respectively arranged on two sides of the bearing plate and correspond to the light-emitting lamp bars in position.

Preferably, a reflective sheet is further disposed between the carrier plate and the light guide plate.

Preferably, at least one group of optical films is further disposed on one side of the light guide plate away from the carrier plate.

Preferably, the first frame and the second frame are both metal frames, and the bearing plate is made of metal plates.

Preferably, a first step surface is arranged on the first frame, and the position of the first step surface corresponds to the position of the second groove.

Preferably, a second step surface is provided on the second frame, and a position of the second step surface corresponds to a position of the first groove.

Preferably, the first frame is provided with first protrusions for bearing the liquid crystal panel on one side close to the first surface and the second surface.

Preferably, second protrusions for bearing the liquid crystal panel are respectively arranged on one side, close to the first surface and the second surface, of the second frame, and the second protrusions correspond to the first protrusions in position.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses set up first recess in first frame, set up to the light strip that provides the illumination for the first surface in first recess, set up the second recess in the second frame, set up to the light strip that provides the illumination for the second surface in the second recess to under the condition that can provide two-sided backlight, saved the edge width of framework, reduced the size that the visual zone of liquid crystal display panel arrives the framework edge, realized the narrow frame theory.

2. The utility model discloses a light source can provide the light source for two surfaces simultaneously, for prior art. The thickness of the double-sided backlight module structure is greatly reduced, and the light and thin design concept of the double-sided backlight module structure is realized.

3. The utility model has the advantages of simple structure, the equipment is convenient, for the structure that prior art is complicated, has improved production efficiency.

4. The utility model discloses a first frame and second frame have replaced traditional lamp shade structure, have reduced the thickness of the two-sided backlight unit of side income formula, have realized its structure slimming.

Drawings

Fig. 1 is a top view of the double-sided backlight module structure of the present invention;

FIG. 2 is a cross-sectional view of the double-sided backlight module structure of the present invention;

FIG. 3 is a partial enlarged view of the left side of FIG. 2;

fig. 4 is a partial enlarged view of the right side of fig. 2.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The utility model discloses a two-sided backlight unit structure, include: frame, loading board 50, light bar 80, light guide plate 60, reflector plate 70 and optical film 90.

Referring to fig. 1 to 4, the frame includes: the frame comprises a first frame 10, a second frame 20, a third frame 30 and a support plate 40, wherein the first frame 10 and the second frame 20 are arranged in parallel, the third frame 30 is respectively connected to the end parts of the first frame 10 and the second frame 20, and the support plate 40 is arranged in parallel to the frames 30. The first frame 10, the second frame 20, the third frame 30 and the supporting plate 40 are disposed around the liquid crystal panel 100, and are used for respectively limiting the supporting plate 50, the light guide plate 60, the reflective sheet 70 and the optical film 90.

A first groove 11 is formed in one side, close to the first surface, of the first frame 10, a first step face 12 is formed in one side, close to the second surface, of the first frame 10, and first protrusions 13 are respectively formed in one side, close to the second surface, of the first step face 12 and one side, close to the first surface, of the first groove 11.

The first surface and the second surface are both light-emitting surfaces of the double-sided backlight module structure, namely two side surfaces of the double-sided backlight module structure.

A second groove 21 is formed in one side, close to the second surface, of the second frame 20, a second step surface 22 is formed in one side, close to the first surface, of the second frame 20, and second protrusions 23 are respectively formed in one side, close to the first surface, of the second step surface 22 and one side, close to the second surface, of the second groove 21. Therefore, the second recess 21 and the first step surface 12 correspond to each other, and are both disposed close to the second surface. The second step surface 22 corresponds to the first recess 11, and is disposed close to the first surface. The second protrusion 23 cooperates with the first protrusion 13 for cooperating with and carrying the liquid crystal panel 100 at the first surface and at the second surface.

The structure of the third frame 30 may be the same as or different from the structure of the first frame 10 or the second frame 20. When the structure of the third frame 30 is different from that of the first frame 10 or the second frame 20, the structure of the third frame 30 may correspond to the edge structures of the loading board 50, the light guide plate 60, the reflection board 70 and the optical assembly 90, so as to limit and fix the loading board 50, the light guide plate 60, the reflection board 70 and the optical assembly 90. When the third frame 30 has the same structure as the first frame 10 or the second frame 20, the loading board 50, the light guide plate 60, the reflection board 70 and the optical assembly 90 may be limited and fixed by arranging an insert in the third frame 30.

Referring to fig. 2 to 4, the supporting plate 50 includes a first bending portion 51 bending toward the first surface and a second bending portion 52 bending toward the second surface, the first bending portion 51 is disposed in the first groove 11, the first bending portion 51 abuts against the bottom of the first groove 11, and the first bending portion 51 is in clearance fit with the first groove 11. The second bent portion 52 is disposed in the second groove 21, and the second bent portion 52 abuts against the bottom of the second groove 21. The second bent portion 52 is in clearance fit with the second groove 21. Therefore, the loading plate 50 is engaged and fixed with the first groove 11 of the first frame 10 and the second groove 21 of the second frame 20.

The light bar 80 is disposed on the first bending portion 51 and the second bending portion 52 respectively. That is to say, the light bar 80 is respectively close to the first surface and the second surface, and then can provide light sources for the two side surfaces of the double-sided display module structure. That is to say, the light bar 80 is disposed in the first groove 11 and the second groove 21 through the carrier plate 50, so that the edge thicknesses of the first frame 10 and the second frame 20 can be reduced, and the narrow frame concept is realized. Meanwhile, the light bars 80 in the first groove 11 are used for providing background light for the liquid crystal panel 100 on the first surface, and the light bars 80 in the second groove 21 are used for providing background light for the liquid crystal panel 100 on the second surface, so that compared with a double-sided backlight module structure in the prior art which needs to be provided with two light bars 80 at the same time, the double-sided backlight module structure of the embodiment is simpler and thinner. Furthermore, the utility model discloses can also simplify the equipment process of equipment, improve production efficiency. Furthermore, the utility model provides a first frame 10 and second frame 20 have still replaced traditional lamp shade structure, have reduced the thickness of two-sided display module assembly structure, have realized the product slimming.

The light guide plates 60 are respectively disposed on two sides of the carrier plate 50, and the positions of the light guide plates correspond to those of the light bars 80, so as to guide the light emitted from the light bars 80 to the liquid crystal panel 100. The reflective sheet 70 is disposed between the light guide plate 60 and the carrier plate 50, and is used for reflecting light, diffusing light, and increasing the projection range of light. The optical film 90 is disposed on a side surface of the light guide plate 60 away from the carrier plate 50, and can adjust the light to reduce stray light. Further, the light guide plate 60, the reflective sheet 70 and the optical film 90 are all fixed to the carrier plate 50, and the carrier plate 50 is further fixedly connected to the first frame 10, the second frame 20 and the support plate 40.

Referring to fig. 1 to 4, the first frame 10, the second frame 20, and the third frame 30 are all made of metal, which is not only attractive and easy to shape, but also can conduct internal heat.

Preferably, the lengths of the light guide plate 60, the reflective sheet 70 and the optical film 90 correspond to the length of the liquid crystal panel 100, and the length of the carrier plate 50 is greater than the length of the liquid crystal panel 100. The lengths of the first frame 10 and the second frame 20 are the same as the length of the loading plate 50. That is, the loading board 50 has an extension area in the length direction of the first frame 10 and the second frame 20, and a device such as a back board can be mounted on the extension area, compared with other components. The supporting plate 40 is disposed at a connection portion of the extending region of the carrier plate 50 and the liquid crystal panel 100, so as to limit the light guide plate 60, the reflective sheet 70 and the optical film 90, and to connect and fix the carrier plate 50. Of course, since the liquid crystal panels 100 are respectively located at two sides of the supporting board 50, the two groups of supporting boards 40 are also symmetrically disposed and respectively located at two side surfaces of the supporting board 50.

It should be noted that, for convenience of understanding, in the present embodiment, the dimensions of the loading board 50, the first frame 10 and the second frame 20 in the length direction are limited. However, the same applies in the width direction, so that the length in this embodiment refers to the length of one side, and does not refer to the direction of the side with relatively longer dimension, i.e. the loading plate 50 can extend in either direction of length and width as required.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A double-sided backlight module structure is characterized by comprising:

2. The dual sided backlight module structure of claim 1, wherein a reflective sheet is further disposed between the carrier plate and the light guide plate.

3. The dual sided backlight module structure of claim 1, wherein at least one set of optical films is further disposed on a side of the light guide plate away from the carrier plate.

4. The dual-sided backlight module structure of claim 1, wherein the first frame and the second frame are metal frames, and the carrier board is a metal plate.

5. The dual sided backlight module structure of claim 1, wherein the first frame has a first step surface disposed thereon, and the first step surface is corresponding to the second groove.

6. The dual sided backlight module structure of claim 5, wherein the second frame has a second step surface disposed thereon, and the position of the second step surface corresponds to the position of the first groove.

7. The dual sided backlight module structure of claim 6, wherein the first frame has first protrusions for supporting the liquid crystal panel disposed on one side thereof adjacent to the first and second surfaces.

8. The dual-sided backlight module structure of claim 7, wherein a second protrusion for supporting a liquid crystal panel is disposed on one side of the second frame close to the first surface and the second surface, and the second protrusion corresponds to the first protrusion.