| CPC H05K 5/0234 (2013.01) [F16M 11/125 (2013.01); F16M 11/18 (2013.01); F16M 11/2014 (2013.01); F16M 11/28 (2013.01); F16M 13/022 (2013.01); G06T 7/70 (2017.01); F16M 2200/00 (2013.01); G06T 2207/30196 (2013.01)] | 25 Claims | 

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               1. A display device comprising: 
            a display configured to display an image; 
                a mounting bracket coupled to a rear surface of the display; 
                a first arm connected to the mounting bracket for tilting the mounting bracket up and down; 
                a second arm connected to an end portion of the first arm and the first arm being configured to rotate based on a first swivel shaft disposed in the second arm; 
                a third arm connected to an end portion of the second arm and the second arm being configured to rotate based on a second swivel shaft disposed in the third arm; 
                a pillar connected to the third arm and the pillar being configured to move up and down; 
                a fixing part configured to be fixed to an external object; 
                a tilting shaft horizontally disposed on an end portion of the first arm; and 
                a camera disposed on the display, the camera being configured to capture a posture of a user or a viewing angle of the user's eyes, 
                wherein the pillar is connected to an upper surface of the fixing part and the pillar is configured to rotate based on a third swivel shaft disposed in the fixing part or the pillar, 
                wherein the first arm is coupled to be vertically tilted on the tilting shaft, 
                wherein vertical tilting angle of a screen of the display is adjusted with respect to the viewing angle, and 
                wherein a coupling area between the first arm and the second arm are includes: 
                a first swivel shaft coupled to the second arm for providing a movable joint between the first arm and the second arm; 
                a fixed gear disposed on an end portion of the first arm in a circumferential direction; 
                a driving gear engaged with the fixed gear; and 
                a first swivel driving motor configured to rotate the driving gear. 
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