Patent ID: 7388510

Claim:
A display, comprising at least: a base having a sensing region, the sensing region comprising a shielding region, which protrudes from the base, and a non-shielding region; a display module having a control element, wherein the display module is rotatably coupled to the base; and a sensing element, electrically connected with the control element for sensing an intensity of radiation from the sensing region of the base, wherein the control element determines an angle of rotation of the display module with respect to the base according to intensity of radiation from the sensing region of the base sensed by the sensing element; wherein the sensing element is an electromagnetic sensing element and wherein when the electromagnetic sensing element and the shielding region correspond to each other, the electromagnetic sensing element senses a third intensity of the magnetic field, whereas when the display module rotates the angle of rotation with respect to the base, and the electromagnetic sensing element changes to the state of corresponding to the non-shielding region, the electromagnetic sensing element senses a fourth intensity of the magnetic field, which is different from the third intensity of the magnetic field.