Patent Application
20130256245
1. Field of the Invention
The present invention relates to an assembling component for liquid crystal display device, especially to a plastic frame, a frame unit and a fastener thereof.
2. Description of the Related Art
Generally speaking, a conventional liquid crystal display module includes components such as a front frame, a liquid crystal display panel, a plastic frame, a backlight module and a back board. The backlight module may be a side-light type backlight module and include optical films, a light guide plate and a light bar. The front frame, the plastic frame and the back board are connected together to form a holding room, and the liquid crystal display panel and the backlight module are to be mounted in the holding room to construct the liquid crystal display module.
The plastic frame is mainly to fix and hold the liquid crystal display panel and the light guide plate of the backlight module so as to prevent the liquid crystal display panel and the light guide plate of the backlight module from shaking or flipping. Although different types of liquid crystal display modules have similar plastic frame structures, but size of the plastic frame of different liquid crystal display modules may vary by the sizes of the liquid crystal display panels, therefore, the design of the molding device has to be changed according to the frame size, which undoubtedly increases molding cost.
In order to save the cost, manufacturers design a modular structure for plastic frame by providing multiple frame units and assembling them into one complete plastic frame to meet the requirement of different types of liquid crystal display modules. However, such a modular structure of plastic frame still has a problem of poor flatness on the connection part between the frame units.
Hence, it is necessary to provide a plastic frame, a frame unit and a fastener thereof to overcome the problems existing in the conventional technology.
In consideration of the shortcomings of the conventional technology, a primary object of the present invention is to provide a plastic frame, a frame unit and a fastener thereof such that the plastic frame can be assembled into different sizes through hook engagements between frame units and corresponding fasteners and further meet the requirements of different types of liquid crystal display modules and ensure that the connection between the frame units and fasteners has certain strength and flatness at the same time.
In order to achieve to foregoing object of the present invention, the present invention provides a plastic frame having:
at least two frame units, and each of the frame units is strip-shaped and has at least one end having an assembling portion; the assembling portion has a first concave portion and a second concave portion, wherein a surface of the first concave portion and a surface of the second concave portion are connected and define a first angle; the surface of the first concave portion has a first engaging portion formed thereon, and the surface of the second concave portion has a second engaging portion formed thereon; the assembling portion is used to be correspondingly connected to the assembling portion of another one of the frame units; and
In one embodiment of the present invention, each of the frame units is a plastic strip-shaped structure having an L-shaped cross-section.
In one embodiment of the present invention, a length of the fastener is equal to the total length of two of the connected assembling portions.
In one embodiment of the present invention, the first angle is equal to the second angle.
In one embodiment of the present invention, the first angle and the second angle are both 90 degrees.
In one embodiment of the present invention, each of the first, the second, the third and the fourth engaging portions is a strip-shaped protrusion with the same shape and having a contact surface, wherein the contact surface of the first engaging portion correspondingly abuts the surface of the third engaging portion; and the surface of the second engaging portion correspondingly abuts the surface of the fourth engaging portion.
In one embodiment of the present invention, each of the first, the second, the third and the fourth engaging portions is a strip-shaped protrusion having a triangle-shaped cross-section.
In one embodiment of the present invention, the assembling portions of the frame units and the fastener have a space therebetween.
In one embodiment of the present invention, each of the first and the second engaging portions is a strip-shaped protrusion with the same shape; each of the third and the fourth engaging portions is a groove corresponding to the shape of the strip-shaped protrusion.
In one embodiment of the present invention, each of the first and the second engaging portions is a strip-shaped protrusion having a rectangle-shaped cross-section.
In one embodiment of the present invention, each of the first and the second engaging portions is a strip-shaped protrusion having a trapezoid-shaped cross-section.
In one embodiment of the present invention, each of the first and the second engaging portions is a strip-shaped protrusion having a triangle-shaped cross-section.
In one embodiment of the present invention, each of the first and the second engaging portions is a groove having the same shape; and each of the third and the fourth portions is a strip-shaped protrusion corresponding to the shape of the groove.
In one embodiment of the present invention, each of the first and the second engaging portions is a groove having a rectangle-shaped cross-section.
In one embodiment of the present invention, each of the first and the second engaging portions is a groove having a trapezoid-shaped cross-section.
The present invention further provides another frame unit being strip-shaped and having at least one end having an assembling portion; the assembling portion has a first concave portion and a second concave portion, wherein the first concave portion and the second concave portion are connected and define a first angle; the surface of the first concave portion has a first engaging portion formed thereon, and the surface of the second concave portion has a second engaging portion formed thereon.
The present invention further provides a fastener used to fix two connected assembling portions of the foregoing frame units, wherein the fastener has a first board portion and a second board portion, the first board portion and the second board portion are connected and define a second angle; the first board portion has a third engaging portion formed thereon; the second board portion has a fourth engaging portion formed thereon.
The present invention is to modularize the manufacture of plastic frames by providing a plurality of frame units and fasteners to assemble into a plastic frame. The assembling portions of the frame units are connected and fixed by engaging two surfaces thereof with two surfaces of the fastener so as to achieve a certain level of fixing strength and flatness. The modular design can also save cost on molding equipment.
Following description of each embodiment is referring to the accompanying drawings so as to illustrate practicable specific embodiments in accordance with the present invention. The directional terms described in the present invention, such as upper, lower, front, rear, left, right, inner, outer, side and etc., are only directions referring to the accompanying drawings, so that the used directional terms are used to describe and understand the present invention, but the present invention is not limited thereto.
Please refer to
With reference to
As shown in
The fastener 2 may be a plastic component made of materials as the same as the frame unit 1 or other component having certain resilience. When mounting the fastener 2 on the two of the connected assembling portions 10, the fastener 2 first are positioned on the assembling portions 10, wherein the first board portion 21 corresponds to the first concave portion 11, and the second board portion 22 corresponds to the second concave portion 12; then apply a press force to the fastener 2 such that the third engaging portion 210 of the first board portion 21 is engaged with the first engaging portion 110 of the first concave portion 11, and the fourth engaging portion 220 of the second board portion 22 is engaged with the second engaging portion 120 of the second concave portion 12; meanwhile, the first board portion 21 and the second board portion 22, as a result, are mounted in the first concave portion 11 and the second concave portion 12, respectively, and thereby the connection between the two of the connected frame units 1 has a flat surface.
The mounting of the fastener 2 enhances the strength and flatness between the frame units 1. As for the embodiment shown in
With reference to
In addition to the first embodiment, the engaging structure between the frame unit 1 and the fastener 2 of the present invention may be designed as other engaging forms without having any space left therein. With reference to
Besides, the engaging portions of the frame units and the fastener 2 are not limited to the above-mentioned types of strip-shaped protrusion or groove. The engaging portions of the frame unit 1 may be designed in different forms, such as one of the engaging portions has a hook structure and the other one of the engaging portions is a through hole or a groove structure, as long as the engaging portions of the corresponding fastener 2 have a corresponding structure that matches.
By the above description, comparing with the modular structure of conventional plastic frames that have a shortcoming of poor flatness of the connection between the frame units, the present invention provides a plastic frame, frame units and a fastener thereof that the plastic frame can be constructed to have different sizes through a way of correspondingly engaging the frame units and fasteners with each other, and meanwhile ensure a certain level of fixing strength and flatness.
The present invention has been described with a preferred embodiment thereof and it is understood that many changes and modifications to the described embodiment can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201210083496.4 | Mar 2012 | CN | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/CN12/74158 | 4/17/2012 | WO | 00 | 6/9/2012 |
