Display apparatus and control method thereof

A method of a display apparatus, the method comprising:

• obtaining first power consumed in a display based on brightness information of the display;
• determining second power suppliable to an external input port based on the first power consumed;
• receiving, via the external input port, from an external apparatus connected to the external input port, information about third power that is supplied to the external apparatus;
• determining fourth power supplied to the external input port, based on the second power and the information about the third power;
• determining an over current protection (OCP) value based on the fourth power;
• supplying the determined fourth power, via the external input port, to the external apparatus;
• stopping power supplied, via the external input port, to the external apparatus based on a determination that a current value, which is supplied through the external input port, exceeds the OCP value;
• and
• determine the OCP value according to a pre-set ratio from the current value supplied to the external input port according to the fourth power,
• wherein the pre-set ratio corresponds to an OCP margin, the OCP value is obtained by applying the pre-set ratio to the current value, and the OCP value is higher than the current value.

A non-transitory computer readable medium storing instructions that when executed by at least one processor directs the at least one processor to perform a control method of a display apparatus, the control method including:

• obtaining first power consumed in a display based on brightness information of the display;
• determining second power suppliable to an external input port, based on the first power consumed;
• receiving information, via the external input port from an external apparatus connected to the external input port, about third power supplying to the external apparatus;
• determining fourth power supplied to the external input port based on the second power and information about the third power;
• determining an over current protection (OCP) value based on the fourth power;
• supplying the determined fourth power, via the external input port, to the external apparatus;
• stopping power supplied, via the external input port, to the external apparatus based on a determination that a current value, which is supplied through the external input port, exceeds the OCP value;
• and
• determining the OCP value according to a pre-set ratio from the current value supplied to the external input port according to the fourth power,
• wherein the pre-set ratio corresponds to an OCP margin, the OCP value is obtained by applying the pre-set ratio to the current value, and the OCP value is higher than the current value.