Patent ID: 8836671
Filing Date: 2014-09-16
Classification: G06F

Abstract:
1. A display device comprising: a screen on which an image is displayed; and a position detection device including the plurality of light receiving sections are linearly arranged along a first direction perpendicular to the screen, each of the plurality of light receiving sections is located apart from the screen with a different distance between the screen and each of the plurality of light receiving sections, the proximal end light receiver is located closer to the screen than the distal end light receiver, a first detection range in the first direction from which the distal end light receiver receives the reflected light beam is larger than a second detection range in the first direction from which the proximal end light receiver receives the reflected light beam, the first detection range is not overlapped with the second detection range in the first direction, and the position detection device has detection accuracy of the position information of the object varying in accordance with a position of the object in the first direction.