Patent Publication Number: US-9418579-B2

Title: Electronic billboard

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims priority to Chinese Patent Application No. 201310580147.8 filed on Nov. 19, 2013, the contents of which are hereby incorporated by reference. 
     FIELD 
     The subject matter herein generally relates to a display device, and more particularly to an electronic billboard. 
     BACKGROUND 
     An electronic display is widely used to make an electronic billboard instead of an advertising poster. The electronic billboard can display different advertisements and hardware or equipment does not need to be replaced. The electronic billboard can be displayed in public places such as railway stations, bus stations and so on. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Implementations of the present technology will now be described, by way of example only, with reference to the attached figures. 
         FIG. 1  is an exploded, isometric view of an electronic billboard in accordance with an embodiment. 
         FIG. 2  is another exploded, isometric view of the electronic billboard of  FIG. 1 . 
         FIG. 3  is an enlarged view of a circled portion III of  FIG. 1 . 
         FIG. 4  is a partially exploded, isometric view of the electronic billboard. 
         FIG. 5  is an assembled, isometric view of the electronic billboard of  FIG. 1 , wherein a display is located in a vertical direction. 
         FIG. 6  is an assembled, isometric view of the electronic billboard of  FIG. 1 , wherein the display is located in a horizontal direction. 
     
    
    
     DETAILED DESCRIPTION 
     It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure. 
     Several definitions that apply throughout this disclosure will now be presented. 
     The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like. 
       FIG. 1  and  FIG. 2  illustrate an electronic billboard including a display  10 , a touch device  20 , a host  30 , a base  50 , and a bracket  60 . 
     The display  10  includes a front wall  11 , a screen  111 , and a rear wall  12 . A slot  112  configured to receive the touch device  20  is defined between the front wall  11  and a front side of the screen  111 . A receiving portion  121  is defined at bottom of the rear wall  12 . In at least one embodiment, the receiving portion  121  is a slot extending from the rear wall  12  to the front wall  11 . A plurality of mounting holes  125  are defined in the receiving portion  121 . Four sliding rods  122  are mounted to the rear wall  12  and located at four corners of a square area. In at least one embodiment, the sliding rods  122  are above the receiving portion  121  in a vertical direction. Each sliding rod  122  includes a shaft  123  and head  124 . The shaft  123  is mounted on the rear wall  12 , and the head  124  is connected to the shaft  123 . A diameter of the head  124  is larger than a diameter of the shaft  123 . 
     The touch device  20  includes a transparent touch sensing layer  21  and a frame  22  configured to surround the touch sensing layer  21 . The touch sensing layer  21  can function with any operations. The frame  22  is made of flexible materials and can be elastically deformed. The electronic billboard further includes a mounting apparatus  40  to mount the host  30  in the receiving portion  121  of the display  10 . The mounting apparatus  40  can include a mounting plate  41  and two sidewalls  42 . A plurality of through holes  411  are defined in the mounting plate  41 . A plurality of latching slots  412  are defined at two opposite sides of the mounting plate  41 . Two sidewalls  42  are configured to set at two opposite sides of the host  40 . Each sidewall  42  includes a plurality of hooks  421 . 
     The base  50  includes two mounting posts  51 . 
     The bracket  60  includes two supporting posts  61 . A plurality of latching holes  611  are defined in the supporting posts  61 . Two securing holes  63  corresponding to the mounting posts  51  are separately defined at a bottom of the bracket  30 . 
       FIG. 3  illustrates each latching hole  611  includes a larger inserting portion  612  and a smaller mounting portion  613  connected to the inserting portion  612 . A diameter of the inserting portion  612  is larger than that of the head  124 . A diameter of the mounting portion  613  is larger than that of the shaft  123  and smaller than that of the head  124 . The inserting portion  612  is above the mounting portion  613  in the vertical direction. In at least one embodiment, each latching hole  611  is gourd-shaped. 
       FIG. 4  illustrates a partial assembly of the electronic billboard. The mounting posts  51  of the base  50  are engaged in the securing holes  63  of the base  60 . The host  30  can be assembled to the display  10  to increase an expansion function of the electronic billboard. Two sidewalls  42  can be coupled to the host  30  and located at two opposite sides of the host  30 . The hooks  431  of the sidewalls  42  are engaged in the corresponding latching slots  412  of the mounting plate  41 . The through holes  411  of the mounting plate  41  are aligned with the mounting holes  125  of the display  10 . A plurality of fasteners  90  are engaged in the though holes  411  and the mounting holes  125  to secure the host  30  in the receiving portion  121  of the display  10 . The host  30  is electrically connected to the display  10 . Users can control the host  30  to change contents on the display  10 . 
     The touch device  20  can be assembled to the display  10 . In that case, user can input operation commands for the touch device  20 . The touch sensing layer  21  is surrounded by the frame  21 . The frame  22  is inserted into the slot  112 . The touch device  20  is located at the front side of the display  10 . The transparent touch sensing layer  21  covers the screen  111 . Users can input commands by pressing the touch sensing layer  21 . 
       FIG. 5  and  FIG. 6  illustrate the electronic billboard assembled. The heads  124  of four sliding rods  122  extend through corresponding inserting portions  612  of the latching holes  611 . Each shaft  123  is received in the inserting portion  612 , sliding into the mounting portion  613  from the inserting portion  612  by moving the display  10 , and the head  124  abuts against the supporting post  61  around the mounting portion  613 . 
     The display  10  can be mounted to the bracket  60  in the vertical direction or in a horizontal direction because the four sliding rods  122  are located at four corners of the square area. 
     The embodiments shown and described above are only examples. Many details are often found in the art such as the other features of an electronic billboard. Therefore, many such details are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, especially in matters of shape, size and arrangement of the parts within the principles of the present disclosure up to, and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.