Abstract:
An exemplary flat panel display includes a back cover having a receiving space, and conductive wires accommodated in the receiving space. The back cover includes an inner surface corresponding to the receiving space. Typically, plural fixing elements for fastening the conductive wires are arranged on the inner surface, which can secure the conductive wires on the back cover.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to flat panel displays, and particularly to a flat panel display with conductive wires fastened in a receiving space inside the flat panel display. 
   2. General Background 
   A popular kind of flat panel display is the liquid crystal display (LCD). LCDs generally have advantages of lightness in weight, a thin profile, flexible sizing, and low power consumption. For these reasons, LCDs are widely used in products such as LCD monitors, laptops, personal digital assistants, mobile phones, and so on. In order to integrate more functions into an LCD device (such as an LCD monitor or a laptop), equipment such as speakers, a camera, and a USB (Universal Serial Bus) port can be included. Typically, this kind of equipment is electrically connected to a printed circuit board of the LCD device with wires. 
   A conventional LCD panel of an LCD monitor is shown in  FIG. 9 . The LCD panel  1  includes a front cover  11 , a back cover  12 , a display module  15 , a printed circuit board (PCB)  13 , and a pair of speakers  14   a ,  14   b . A receiving space is formed between the front cover  11  and the back cover  12 , for receiving the display module  15 , the PCB  13 , and the speakers  14   a ,  14   b.    
   The front cover  11  defines a central opening  111 , corresponding to a display region  151  of the display module  15 . The back cover  12  includes an inner side surface  121 . The speakers  14   a  and  14   b  are located at two ends of a lower side of the inner side surface  121 . Each speaker  14   a  and  14   b  is connected with a respective wire  16 . The wires  16  electrically connect to the PCB  13  through a connector  18 . In order to secure the wires  16  in a proper manner, several pieces of adhesive tape  19  are used to attach the wires  16  onto the inner side surface  121  of the back cover  12 . 
   During assembly of the LCD panel  1 , a roll of adhesive tape  19  is needed. In general, an operator cuts or tears pieces of adhesive tape  19  off from the roll one by one, and uses the pieces of adhesive tape  19  to fix the wires  16  on the inner side surface  121  of the back cover  12 . Typically, several pieces of adhesive tape  19  are needed to attach the wires  16  onto the back cover  12  firmly. Overall, the conventional manual process for fixing the wires  16  on the back cover  12  is inconvenient and time-consuming. 
   SUMMARY 
   An exemplary of flat panel display includes a first cover, a second cover, a printed circuit board (PCB), and a display module. The first cover has a receiving space for receiving a wire. The first cover further includes a first surface, located corresponding to the receiving space. The first surface has a wire fixing structure for fastening the wire on the first cover. In the preferred embodiment, the wire fixing structure includes a post. The post can for example be cylindrical or a square prism. Additionally, the post usually has a protrusion extending from a free end thereof so as to secure the wire. Furthermore, when the wire fixing structure has three posts, an arrangement of those three posts is like an isosceles triangle. In this situation, lengths of the two equal sides and of the base side and of the height of the isosceles triangle are defined as “m”, “L” and “h” separately where a compound ratio of the m:L:h can be 1.4:2:1. Moreover, a length of the wire fixing structure is defined as “p”, and a compound ratio of “p” and “L” can be 1.5:2. Otherwise, the first cover is usually set with a plurality of speakers which are electrically connected by the wire and further electrically connected to the PCB. The display module is also electrically connected to the PCB. The first cover and the second cover are adapted to engagingly receive the display module and the PCB therebetween. 
   Other objects, advantages, and novel features of various embodiments of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, all the views are schematic. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is an exploded, isometric view of a liquid crystal display (LCD) panel according to an exemplary embodiment of the present invention, the LCD panel including a back cover, two speakers, a connector, and wires (not shown). 
       FIG. 2  is an assembled view of the back cover, the speakers, and the connector of  FIG. 1 , and also showing the wires. 
       FIG. 3  is an enlarged view of a circled area III of  FIG. 2 . 
       FIG. 4  through  FIG. 7  are each similar to  FIG. 3 , but showing corresponding views in cases of LCD panels in accordance with respective alternative embodiments of the present invention. 
       FIG. 8  is similar to  FIG. 2 , but showing a corresponding view in the case of an LCD panel in accordance with another alternative embodiment of the present invention. 
       FIG. 9  is an exploded, isometric view of a conventional liquid crystal display panel. 
   

   DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
   Referring to  FIG. 1 , this is an exploded, isometric view of a liquid crystal display (LCD) panel. The LCD panel is shown and described herein for the purposes of describing an exemplary embodiment of the present invention. It should be noted that other kinds of flat panel displays are also capable of embodying the principles of the present invention. The LCD panel  2  includes a front cover  21 , a back cover  22 , a display module  25 , a printed circuit board (PCB)  23 , and a pair of speakers  24   a ,  24   b . The front cover  21  and the back cover  22  cooperatively form a receiving space, for receiving the display module  25 , the PCB  23 , and the speakers  24   a ,  24   b . The front cover  21  defines a central opening  211 , corresponding to a display region  251  of the display module  25 . 
   The back cover  22  includes an inner side surface  221 , which defines one side of the receiving space. The speakers  24   a ,  24   b  are located on opposite ends of a lower side  2211  of the inner side surface  221  respectively. In the exemplary embodiment, six wire fixing structures  2210  are provided in a zigzagged arrangement on the lower side  2211  of the inner side surface  221 . Each wire fixing structure  2210  includes three posts  2215  provided in an isosceles triangle arrangement. In the illustrated embodiment, the posts  2215  are cylindrical. In alternative embodiments, the posts  2215  may for example be square prisms. 
   Referring also to  FIG. 2  and  FIG. 3 , the speakers  24   a ,  24   b  are each connected to a respective wire  26 , and the wires  26  are connected to a connecter  28 . The connecter  28  is in turn connected to the PCB  23 . The wires  26  are secured through corresponding of the wire fixing structures  2210 . 
   In each wire fixing structure  2210 , a length of each of the two equal sides of the isosceles triangle is defined as “m”, a width of the base side of the isosceles triangle is defined as “L”, and a height of the isosceles triangle is defined as “h”. In the case of the posts  2215  being cylindrical, a diameter of each post  2215  is “d”. A length of each post  2215  (from the lower side  2211  of the inner side surface  221  to a free end of the post  2215 ) is defined as “p”. According to a thickness of the wires  26 , a compound ratio (m:L:h:d:p) of the posts  2215  in each wire fixing structure  2210  can be set as 1.4:2:1:1:1.5. For example, when the diameter “d” of each post  2215  is 3 mm, then the length “m” of the two equal sides is 4.2 mm, the width “L” of the base side is 6 mm, the height “h” of the isosceles triangle is 3 mm, and the length “p” of each post  2215  is 4.5 mm. 
   In the exemplary embodiment, when the wires  26  are secured through the wire fixing structures  2210 , the wires  26  have a wavy arrangement adjacent to the lower side  2211  of the back cover  22 . The wire fixing structures  2210  neatly fix the wires  26  of the speakers  24   a ,  24   b  in safe positions. In assembly of the LCD panel  2 , unlike in conventional art, there is no need to use pieces of adhesive tape to attach the wires  26  on the back cover  22 . Additionally, the posts  2215  and the back cover  22  can be conveniently formed as a single body, for example by an injection molding process. Hence, assembly times can be shortened, and costs reduced. 
   In an alternative embodiment as shown in  FIG. 4 , a protrusion  3217  extends from a free end of a top one of three posts  3215  of each wire fixing structure  3210 . The protrusion  3217  extends toward a middle of a base side of an isosceles triangle formed by the three posts  3215 . The protrusion  3217  is defined by way of a cutout formed in the top post  3215 . This configuration enables a wire  36  to be firmly held by the wire fixing structure  3210 . 
   In another alternative embodiment as shown in  FIG. 5 , each wire fixing structure  4210  includes only two posts  4215 . A lower one of the posts  4215  is cylindrical. An upper one of the posts  4215  has a protrusion  4217  extending toward the lower post  4215 . This configuration enables a wire  46  to be firmly held by the wire fixing structure  4210 . 
   In a further alternative embodiment as shown in  FIG. 6 , each wire fixing structure  5210  has two posts  5215 , which are generally prism-shaped. A top one of the posts  5215  has a hook  5217  extending down from a free end thereof and further extending toward the lower side  2211  of the back cover  22 . This configuration enables a wire  56  to be firmly held by the wire fixing structure  5210 . 
   In a still further alternative embodiment as shown in  FIG. 7 , each wire fixing structure  6210  includes only a single post  6215 . The post  6215  has a hook  6217  extending up from a free end thereof and further extending toward the lower side  2211  of the back cover  22 . This configuration enables a wire  66  to be securely held by the wire fixing structure  6210 . 
   In yet further alternative embodiments, the distribution of the wire fixing structures can be varied or added to according to need. For example, referring to  FIG. 8 , a USB port  720  may be set on one side of an inside surface of a back cover  72 . The USB port  720  is connected to a PCB (not shown) through a wire  76  which is fixed by a wire fixing structure  7210 . 
   The above-described LCD panel  2  and back covers  22 ,  72  can have various other alternative embodiments as required. For instance, the number of wire fixing structures can be varied according to the particular configuration of wires employed. For example, when the lengths of the wires are relatively short, as few as one or two wire fixing structures only may be necessary and sufficient. On the other hand, when the lengths of the wires are relatively longer, seven or more wire fixing structures may be required. 
   Furthermore, the number, arrangement, and configuration of the posts of each wire fixing structure can be varied according to need. For example, each wire fixing structure can have four posts or more than four posts. The posts can be semi-cylindrical, square prisms, triangular prisms, polygonal prisms, hollow cylinders, hollow prisms, etc. Additionally, the compound ratio of m:L:h:d:p can be adjusted accordance to the thickness of the wires used. 
   It is to be further understood that even though numerous characteristics and advantages of various embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.