Patent ID: 8643597

Claim:
A display apparatus comprising: a communication port communicating with an external source; a generator to generate a first signal; a display panel to receive the first signal from the generator, and to display the received first signal and a second signal as an image thereon, the first signal to adjust at least one of information relating to the second signal and information relating to the display apparatus, and the second signal being an image signal received from the external source through the communication port; a pivot sensor to sense a pivoting angle of the display panel and to output data corresponding to the pivoting angle when the display panel is pivoted and when the pivoting angle is in a first predetermined range, and to not output the output data corresponding to the pivoting angle when the pivoting angle is in a second predetermined range; and a controller to set a display displaying direction of the image of the first signal according to the data relating to the pivoting angle from the pivot sensor and to automatically transmit the data relating to the pivoting angle to the external source through the communication port when the display panel is rotated, and to control the display panel according to the first signal having the set displaying direction and the second signal pivoted by the external source based on the pivoting angle; a memory to store the data relating to the pivoting angle of the display panel, wherein the controller replaces the data relating to the pivoting angle stored in the memory with the data relating to the pivoting angle sensed by the pivot sensor when the data relating to the pivoting angle sensed by the pivot sensor is not equal to the data relating to the pivoting angle stored in the memory, wherein the external source is located outside of the display apparatus and the generator, display panel, pivot sensor, and controller are enclosed within the display apparatus.