CN101852403B - Supporting structure and backlight module - Google Patents

Abstract

The invention discloses a supporting structure and a backlight module with the same. The supporting structure comprises a supporting part and a buffering part, wherein the buffering part is provided with a first layer and a second layer which are a buffering space away from each other; the first layer has elasticity; the supporting part is arranged on the first layer and deforms the first layer under the action of an external force; and the second layer extends a fixing device used for fixing the supporting structure on a backboard. As the buffering part with certain elastic deformation is arranged below the supporting part, collision or swelling stress can be released by the buffering part to fulfill the aim of protecting a diffuser plate.

Description

Support structure and backlight module

technical field

The invention relates to a support structure and a backlight module including the support structure, in particular to a support structure with a buffer function and the backlight module.

Background technique

In order to adapt to the modern life style, the volume of video or image devices is becoming thinner and thinner day by day. Although the traditional cathode ray display (CRT) still has its advantages, due to the structure of the internal electronic cavity, the display is bulky and takes up space, and there are still problems such as radiation damage to the eyes when displaying. Therefore, recently, Liquid Crystal Display (LCD), which has superior characteristics such as high image quality, good space utilization efficiency, low power consumption, and no radiation, has gradually replaced the traditional cathode ray display and has become the mainstream of the market.

It is worth noting that since the liquid crystal molecules themselves do not emit light, the surface light source required by the liquid crystal panel must be provided by the backlight module, so that the liquid crystal panel can achieve the display effect and obtain sufficient brightness and contrast at the same time. Generally speaking, the form of the backlight module can be divided into two types: side-illuminated type and direct-lit type. Among them, the edge-lit type is used in small and medium-sized liquid crystal displays, while the direct-light type is used in large-sized liquid crystal displays.

In the case of the direct-type backlight module, multiple light sources are arranged under the LCD panel, the diffuser plate is arranged above the light sources, and the reflector is arranged under the light sources, so that the direct-type backlight module respectively diffuses and reflects from the The light emitted by the lamp. Since the light source and the diffuser here are relatively large in size, the backlight module also needs a supporting structure for supporting the diffuser and a bracket for fixing the light source.

As shown in FIG. 1 , FIG. 1 is a schematic structural diagram of a conventional backlight module. The support structure 100 is located between the diffuser plate 130 and the back plate 110, which includes a tapered support 101 for supporting the diffuser plate 130; a plurality of light source brackets 102, which can fix a plurality of light sources 120; a fixing device 103, Used to fix the support structure 100 on the backboard 110 . Due to the rigid contact between the support member 101 and the diffuser plate 130 in this support structure, after the backlight module is impacted by an external force or irradiated by the light source 120 for a long time, the diffuser plate 130 and the support member 101 heat up and expand. The diffuser plate 130 is easily broken or scratched by the support member 101, thereby affecting the light output quality of the entire backlight module.

Contents of the invention

In order to solve the above problems, the present invention proposes a support structure with buffer function and a backlight module with the support structure.

The support structure provided according to the purpose of the present invention includes a support member and a buffer member, the buffer member has a first layer and a second layer, the two are separated by a buffer space, wherein the first layer has elasticity; the support member is located at On the first layer, the first layer is deformed when the external force acts on it; the supporting structure also has a fixing device extending out of the second layer to fix the supporting structure on the backboard.

According to the supporting structure provided by the object of the present invention, the fixing device is arranged on the side of the first layer corresponding to the buffer space, and penetrates and extends out of the second layer.

The support structure provided according to the object of the present invention further includes a spring, which is arranged in the buffer space and sleeved with the fixing device.

According to the support structure provided by the object of the present invention, the fixing device is an inverted T-shaped column cap structure arranged on the second layer.

The supporting structure provided according to the purpose of the present invention further includes an elastic gasket, which is sleeved on the column part of the T-shaped fixing device and placed between the cap part and the back plate of the T-shaped fixing device.

According to the supporting structure provided by the purpose of the present invention, the fixing device is a column, and a hole structure is arranged at the end of the fixing device, wherein the fixing device fixes the supporting structure through an elastic clamp inserted in the hole on the backplane.

The backlight module provided according to another object of the present invention includes a backplane, a light source, a diffuser plate and the above-mentioned support structure, the support structure is located between the backplane and the diffuser plate, wherein the support member of the support structure Arrested against the diffuser plate, the back plate has a positioning hole for cooperating with the fixing device of the support structure to fix the support structure.

According to another object of the present invention to provide a backlight module, the supporting structure further includes a light source support for fixing the light source.

According to another object of the present invention to provide a backlight module, the supporting member of the supporting structure is a conical column.

According to the above support structure and backlight module, by setting a buffer under the support, the buffer can provide a buffer space for elastic deformation, so that the stress of impact or expansion can be released through the buffer space, so as to achieve the protection of diffusion board purpose.

The present invention will be described in detail below in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a structural schematic diagram of an existing backlight module;

Fig. 2 is a schematic diagram of the supporting structure of the first embodiment of the present invention;

Fig. 3 is a schematic diagram of a supporting structure of a second embodiment of the present invention;

4A-4B are schematic views of the supporting structure of the third embodiment of the present invention;

5A-5C are schematic views of the supporting structure of the fourth embodiment of the present invention;

Figure 5D is a partially enlarged view of the corresponding part of the wireframe E in Figure 5C;

FIG. 6 is an overall schematic diagram of the backlight module of the present invention.

Detailed ways

Please refer to FIG. 2 . FIG. 2 is a schematic view of the supporting structure of the first embodiment of the present invention. As shown in the figure, the support structure 200 includes a support member 201 and a buffer member 202, wherein the buffer member 202 has a first layer 2021 and a second layer 2022, and there is a certain buffer space between them. The first layer 2021 is made of elastic material, and the supporting member 201 is disposed on the first layer 2021 . When an external force acts on the support member 201, the first layer 2021 will produce a deformation driven by the support member 201, so that the stress on the support member 201 is released to achieve a buffering effect. On the second layer 2022, a fixing device 203 is extended. The fixing device 203 is an inverted T-shaped column cap structure, wherein the cap body part can be a non-centrosymmetric figure such as a rectangle, an ellipse, or a rhombus. The hole is used to snap and fix the supporting structure 200 to the backplane.

Please refer to FIG. 3 . FIG. 3 is a schematic diagram of a supporting structure of a second embodiment of the present invention. As shown in the figure, compared with the previous embodiment, the fixing device 303 is disposed on the side of the first layer 3021 facing the buffer space, and penetrates and extends out of the second layer 3022 . The part 3011 of the fixing device 303 located in the buffer space is also sheathed with a spring 304 , which can provide the elastic supporting force of the first layer 3021 to ensure the supporting strength of the supporting member 301 in a normal state. Preferably, the position of the fixing device 303 on the first layer 3021 may correspond to the supporting member 301 , but not limited thereto.

Please refer to Fig. 4A-4B, Fig. 4A-4B is a schematic view of the support structure of the third embodiment of the present invention. As shown in the figure, the fixing device 403 of the support structure 400 further includes a gasket 4032, wherein the gasket 4032 is made of elastic material, and a groove in the middle is provided with a shape suitable for the cap body 4031 of the fixing device 403. The gasket 4032 The support structure 400 and the backboard 410 are engaged and fixed by being sleeved on the cylinder part of the fixing device 403 and cushioned between the cap body 4031 and the backboard 410 . Here, the spacer 4032 can provide a certain space for elastic deformation of the support member 401 , thus further enhancing the cushioning effect of the buffer member 402 . It is worth noting that, in this embodiment, the cap body 4031 adopts a circular structure, but it may also be the non-centrosymmetric figure mentioned above.

Please refer to FIGS. 5A-5D . FIGS. 5A-5C are schematic diagrams of the supporting structure of the fourth embodiment of the present invention, and FIG. 5D is a partially enlarged view of the part corresponding to the line frame E in FIG. 5C . As shown in the figure, the fixing device 503 of the support structure 500 is a columnar structure, and a hole 5031 is provided near the end. The hole 5031 includes a through hole part and a slot part. The elastic clip 5032 has and The shape of the hole 5031 is suitable. When the fixing device 503 exposes the hole 5031 through the back plate 510, the elastic clip 5032 is inserted into the hole 5031 to engage and fix the supporting structure 500 and the back plate 510. Here, the elastic clip 5032 can provide a certain space for elastic deformation of the support member 501 , thus further enhancing the cushioning effect of the buffer member 502 .

Please refer to FIG. 6 again. FIG. 6 is an overall schematic diagram of the backlight module of the present invention. As shown in the figure, the support structure 600 is located between the diffuser plate 630 and the back plate 610, which includes a conical support 601 for supporting the diffuser plate 630; multiple light source brackets 602, which can fix multiple light sources 620; The fixing device 603 is used for fixing the supporting structure 600 on the backboard 610 . Wherein, the support structure also has a buffer as mentioned above, so that the contact between the support 601 and the diffusion plate 630 has a certain elastic deformation space, so when the backlight module is impacted by external force or thermally expanded, the diffusion of the diffusion plate can be avoided. 630 is broken or scratched by the supporting member 601, thereby protecting the backlight module from being damaged.

From the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present invention can be described more clearly, and the scope of the claims of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various modifications and equivalent arrangements within the scope of the appended claims of the present invention.

Claims (6)

1. a supporting construction is used for module backlight, comprises support member and bolster, it is characterized in that: said bolster has first aspect and second aspect, and both are at a distance of a cushion space, and wherein this ground floor mask is flexible; This support member is located on this first aspect, and is receiving external force to do the time spent, makes this first aspect generation deformation; Said supporting construction also has the fixture of extending this second aspect, in order to this supporting construction is fixed on the backboard;

Said fixture is a cylinder, is provided with the hole slot structure in the end of this cylinder, and wherein this fixture is fixed in this supporting construction on this backboard through the flexible clamp piece that is interspersed in this hole slot.

2. supporting construction as claimed in claim 1 is characterized in that: said fixture is arranged on said ground floor in the face of a side that should cushion space, and penetrates and extend this second aspect.

3. supporting construction as claimed in claim 2 is characterized in that: further comprises spring, is arranged in this cushion space, and sheathed this fixture.

4. module backlight; Comprise backboard, lamp source and diffuser plate is characterized in that: further comprise like any described supporting construction of claim 1 to 3; Between this backboard and this diffuser plate; Wherein this support member of this supporting construction supports and is located at this diffuser plate, and this backboard has the location hole, in order to fixing this supporting construction of this fixture that cooperates this supporting construction.

5. module backlight as claimed in claim 4 is characterized in that: said supporting construction further comprises lamp source support, in order to the fixed light source.

6. module backlight as claimed in claim 4 is characterized in that: the support member of said supporting construction is the circular cone post.

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