Liquid crystal display and backlight module of the same

The present invention discloses a backlight module including: a back frame comprising a bottom plate having a first insertion hole; a light guide plate carried on the bottom plate; an optical film disposed on the light guide plate and having a second insertion hole; a fixing part comprising an engagement portion and a first insertion portion and a second insertion portion which are respectively disposed at two sides of the engagement portion; wherein, the engagement portion is engaged in a side surface of the light guide plate, the first insertion portion is inserted in the first insertion hole, and the second insertion portion is inserted in the second insertion hole. A liquid crystal display having the backlight module is also disclosed. Through the fixing part to fix and combine the back fame, the light guide plate and the optical film together, the problem of insufficient installation space is solved.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a liquid crystal display technology field, and more particularly to a liquid crystal display and a backlight module of the same.

2. Description of Related Art

With the evolution of optical and semiconductor technology, Flat Panel Display is developed rapidly. In many kinds of flat display panels, Liquid Crystal Display (LCD) has become a mainstream of the market because of superior characteristics of high space utilization efficiency, low power consumption, no radiation and low electromagnetic interference, and so on.

Ultra-thin design is a development trend of the liquid crystal display. Of course, when the liquid crystal display realizes the ultra-thin design, because of the limitation of the thickness of the liquid crystal display and the outward appearance, redesigning for the position of the elements in the liquid crystal display to perform an optimum design is required to solve the problem of insufficient space.

SUMMARY OF THE INVENTION

In order to solve the problem existed in the conventional art, the purpose of the present disclosure is to provide a backlight module, comprising: a back frame comprising a bottom plate having a first insertion hole; a light guide plate carried on the bottom plate; an optical film disposed on the light guide plate and having a second insertion hole; a fixing part comprising an engagement portion and a first insertion portion and a second insertion portion which are respectively disposed at two sides of the engagement portion; wherein, the engagement portion is engaged in a side surface of the light guide plate, the first insertion portion is inserted in the first insertion hole, and the second insertion portion is inserted in the second insertion hole.

Furthermore, the engagement portion comprises: a first plate, and a second plate and a third plate which are formed by extending from two opposite terminals of the first plate toward the side surfaces of the light guide plate.

Furthermore, the second plate and the third plate are disposed in parallel and are disposed perpendicularly to the first plate.

Furthermore, when the engagement portion is engaged with the side surface of the light guide plate, the first plate is attached to and fit with the side surface of the light guide plate, the second plate is attached to and fit with the top surface of the light guide plate, and the third plate is attached to and fit with the bottom surface of the light guide plate.

Furthermore, a free end of the second plate forms the first insertion portion by extending along a direction away from the top surface of the light guide plate.

Furthermore, the first insertion portion is in parallel with the first plate.

Furthermore, a free end of the third plate forms the second insertion portion by extending along a direction away from the bottom surface of the light guide plate.

Furthermore, the second insertion portion is in parallel with the first plate.

Furthermore, the first insertion hole and/or the second insertion hole is a through hole or a blind hole.

Another purpose of the present disclosure is also to provide a liquid crystal display including the above backlight module.

The beneficial effects of the present disclosure, in the present disclosure, through the fixing part to fix and combine the back fame, the light guide plate and the optical film together, the problem of insufficient installation space is solved.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The following content combines with the drawings and the embodiment for describing the present invention in detail. However, many other forms can be used to implement the present invention. Besides, the present invention should not be interpreted to be limit in the specific embodiment described here. On the contrary, the embodiments provided here are used for explaining the operation principle and practical application such that person skilled in the art can under various embodiments of the present invention and various modification suitable for specific applications.

In the figures, in order to illustrate the devices clearly, thickness of the layers and regions are enlarged. A same numeral in the entire specification and figures represents a same device.

It should be noted that, herein, relational terms such as first and second, and the like are only used to distinguish one entity or operation from another entity or operation. It is not required or implied that these entities or operations exist any such relationship or order between them. The terms are only used to distinguish one element from another element.

FIG. 1is a schematic structure diagram of a liquid crystal display according to an embodiment of the present disclosure.

According toFIG. 1, a liquid crystal display device of the embodiment of the present disclosure includes a liquid crystal panel100and a backlight module200which are disposed oppositely. Wherein, the backlight module200provides an even surface light to the liquid crystal panel100such that the liquid crystal panel100can display an image.

Because the main points of the present disclosure aims to the backlight module200so that in order to avoid repeating, a specific structure of a liquid crystal panel100is not described in detail any more, person skilled in the art can refer to a specific structure of a public liquid crystal panel in the conventional art.

The following content will describe the backlight module200in detail according to the embodiment of the present disclosure.FIG. 2is an exploded perspective view of a backlight module according to an embodiment of the present disclosure.FIG. 3is an enlarged diagram of region A inFIG. 2.

With reference toFIG. 2andFIG. 3, the backlight module200according to the embodiment of the present disclosure includes: a back frame210, a light guide plate220, an optical film230and a fixing part240. It can be understood that the backlight module200can also include a light source, a plastic frame and other necessary elements. Because the main point of the present disclosure aims to the fixing part240of the backlight module200, the above elements are omitted selectively. The person skilled in the art can refer to the related conventional art.

The back frame210includes: a bottom plate211and four side plates212respectively extended from four side terminals of the bottom plate211. In the present embodiment, preferably, the four side plates212are all located at a same side of the bottom plate211, and each side plate212is disposed perpendicularly to the bottom plate211. A first insertion hole2111is formed on the bottom plate211. In the present embodiment, preferably the first insertion hole2111is a blind hole. However, the present disclosure is not limited. For example, the first insertion hole2111can also be a through hole. Besides, the number of the first insertion hole2111is two, however, the present disclosure is not limited.

The light guide plate220is a plate shape, including a top surface221and a bottom surface222which are disposed oppositely, and a side surface223connecting the top surface221and the bottom surface222. The light guide plate220is carried on the bottom plate211of the back frame210. In the present disclosure, the light guide plate220is made of a transparent material such as PMMA, etc.

The optical film230is disposed on the light guide plate220, and the optical film230is provided with a second insertion hole231. In the present embodiment, preferably, the second insertion hole231is a through hole, however, the present disclosure is not limited. For example the second insertion hole231is a blind hole. Besides, the number of the second insertion hole231is two, however, the present disclosure is not limited. Specifically, the second insertion hole231and the first insertion hole2111are corresponding one by one.

Besides, the optical film230can be a brightness enhancement film or a diffusion film, etc. The optical film230can improve the optical quality of lights emitted from the top surface221of the light guide plate220. In the present embodiment, the number of the optical film230is not specifically limited. According to an actual requirement, different kinds and different number of the optical film230can be provided.

The fixing part240includes an engagement portion241and a first insertion portion242and a second insertion portion243respectively disposed at two sides of the engagement portion241. Wherein, the engagement portion241is engaged in the side surface223of the light guide plate220. The first insertion portion242is inserted in the first insertion hole2111, and the second insertion portion243is inserted in the second insertion hole231. Accordingly, through the fixing part240to realize the fixing and combination of the back frame210, the light guide plate220and the optical film230in order to solve the problem of insufficient installation space.

FIG. 4is a perspective view of a fixing part according to an embodiment of the present disclosure.FIG. 5is a partial cross-sectional view of a backlight module according to an embodiment of the present disclosure.

With reference toFIG. 4andFIG. 5, the engagement portion241according to the embodiment of the present invention includes: a first plate2411, and a second plate2412and a third plate2413which are formed by extending from two opposite terminals of the first plate2411toward the side surface223of the light guide plate220.

In the present embodiment, preferably, the second plate2412and the third plate2413are disposed in parallel and are disposed perpendicularly to the first plate2411. However, the present invention is not limited.

Accordingly, when the engagement portion241is engaged with the side surface223of the light guide plate220, the first plate2411is attached to and fit with the side surface223of the light guide plate220. The second plate2412is attached to and fit with the top surface221of the light guide plate220, and the third plate2413is attached to and fit with the bottom surface222of the light guide plate220. It can be understood that in another embodiment, the second plate2412is attached to and fit with the bottom surface222of the light guide plate220, and the third plate2413is attached to and fit with the top surface221of the light guide plate220.

Furthermore, a free end of the second plate2412(that is, a side terminal of the second plate2412not connected with the first plate2411) forms the first insertion portion242by extending along a direction away from the top surface221of the light guide plate220. In the present embodiment, the first insertion portion242and the first plate2411are disposed in parallel. However, the present disclosure is not limited.

Furthermore, a free end of the third plate2413(that is, a side terminal of the third plate2413not connected with the first plate2411) forms the second insertion portion243by extending along a direction away from the bottom surface222of the light guide plate220. In the present embodiment, the second insertion portion243and the first plate2411are disposed in parallel. However, the present disclosure is not limited.

In summary, according to the embodiment of the present disclosure, through the fixing part to fix and combine the back fame, the light guide plate and the optical film together, the problem of insufficient installation space is solved.

The above embodiments of the present invention are not used to limit the claims of this invention. Any use of the content in the specification or in the drawings of the present invention which produces equivalent structures or equivalent processes, or directly or indirectly used in other related technical fields is still covered by the claims in the present invention.