Patent Publication Number: US-2013241817-A1

Title: Display device and method for adjusting content thereof

Description:
BACKGROUND 
     1. Technical Field 
     The disclosure generally relates to a display device, and a method for adjusting content of the display device. 
     2. Description of Related Art 
     Nowadays, display devices are widely used in marketplaces or squares. The display devices are usually for displaying movies, television programs or advertisements. However, in the display devices described above, the content of the display device is predetermined. The content of the display devices can not be adjusted according to different environments such as raining, snowing, or different audiences. 
     What is needed, therefore, is a display device which can overcome the described limitations. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. 
         FIG. 1  is an illustrating view of a display device in accordance with one embodiment of the disclosure. 
         FIG. 2  is a flow chart of a method for adjusting content of the display device of  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION 
     Referring to  FIG. 1 , a display device  100  in accordance with one embodiment of the disclosure is shown. The display device  100  includes a display unit  110 , a camera  120  and a control unit  130 . 
     The display unit  110  is configured for displaying many kinds of video information such as advertisement about cars or dresses. In addition, the display unit  110  can also play movies and music to attract audiences. In this embodiment, the display unit  110  can be selected from a group consisting of liquid crystal display, LED display, plasma display and projecting device. The display unit  110  can be placed at marketplaces, squares, stores, or buildings. 
     The camera  120  is configured for obtaining image information in front of the display unit  110 , to determine information of ambient environment, such as number of audiences, weather conditions etc. 
     The control unit  130  receives the image information obtained by the camera  120 , and adjusts the video information of the display unit  110  according to the information obtained by the camera  120 . The information obtained by the camera  120  includes weather conditions such as whether is raining, whether is snowing, whether is too cold or too hot. In addition, the information obtained by the camera  120  can also include information of audiences, such as gender, age and ethnicity. In this embodiment, the control unit  130  includes a processor  131  and a face identify device  132  connected with the processor  131 . The processor  131  transmits the image information obtained by the camera  120  to the face identify device  132 . According to the image information, the face identify device  132  can determine the number, gender and age of audiences in front of the display unit  110 . According to the result of the face identify device  132 , the processor  131  can adjust the content of the display unit  110 . For example, if there are many female audiences in front of the display unit  110 , the control unit  130  will adjust content of the display unit  110  to display advertisements about dresses or jewelries. If there are many male audiences in front of the display unit  110 , the control unit  130  will adjust content of the display unit  110  to display advertisement about cars. Furthermore, the face identify device  132  can also determine the ethnicity of audiences, for example, to determine number of audiences with different skin colors such as black, white, and yellow. 
     The control unit  130  can further include a face tracing device  133 . When the face identify device  132  identify a face in the image information of the camera  120 , the face tracing device  133  will control the camera  120  to trace the face to determine the action of the audience. For example, the face tracing device  133  can turn the camera  120  to different directions, zoom in the audience or zoom out the audience. 
     The display device  100  can further include a lighting device  140 . When the display device  100  is in a dark environment, the lighting device  140  can illuminate ambient environment of the display device  100  to make the camera  120  to capture relatively clear images. 
     In the display device  100  described above, the camera  120  is formed on the display device  100  to obtain the image information in front of the display unit  110 . According to the image information, the control unit  130  can determine the number, age, gender and ethnicity of the audiences. According to the result, the control unit  130  can adjusts content of the display unit  110 . That is, the displayer  100  can adjust the content of the display unit  110  according to different audiences. 
     Referring to  FIG. 2 , a method for adjusting the content of a display device  100  is provided. The method includes the following steps. 
     A display unit  110  is provided to display video information. The displayer  110  can be liquid crystal display, LED display, plasma display and projecting device. In this embodiment, the content of the display unit  110  is advertisement. 
     A camera  120  is provided to obtain image information in front of the display unit  110 . 
     A control unit  130  is provided to receive the image information of the camera  120 . The control unit  130  adjusts the content of the display unit  110  according to the image information of the camera  120 . In this embodiment, the control unit  130  includes a processor  131  and a face identify device  132  connected with the processor  131 . The processor  131  transmits the image information of the camera  120  to the face identify device  132 . According to the image information of the camera  120 , the face identify device  132  can determine the number, age, gender and ethnicity of audiences. According to the result of the face identify device  132 , the processor  131  adjusts the content of the display unit  110 . Preferably, the control unit  130  can further include a face tracing device  133  to control the camera  120  to trace an audience&#39;s face, thereby determining actions of the audience. 
     A lighting device  140  is further provided. When the display device  100  is in a dark environment, the lighting device  140  can illuminate ambient environment of the display device  100  to make the camera  120  to obtain clear images. 
     It is to be understood, however, that even though numerous characteristics and advantages of the present 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.