Patent ID: 6781572
Filing Date: 2004-08-24
Classification: G06F

Abstract:
An optical pointing device for moving a cursor on a display screen of a computer, which comprises:a pointing board having stripe-like line patterns provided in an X axis direction and a Y axis direction, respectively, the patterns orthogonal to each other, and having a protruding portion; an upper housing cover covering an upper surface of said pointing board, and having an opening portion provided around said protruding portion of said pointing board, a left click button cover, and a right click button cover; a click button control circuit board mounting thereon a left click button and a right click button arranged right under said left click button cover and said right click button cover, respectively, and a first thin flexible cable connector, the click button control circuit board fixed to a lower surface of said upper housing; a control circuit board having a support base supporting said pointing board, a light emitting device irradiating light to said line patterns, a photo-detector detecting said irradiated light reflected by said line patterns, and a control circuit controlling a signal from said photo-detector and signals from said left click button and said right click button; wherein said pointing board has a transparent core, a transparent lower surface film bonded to a lower surface of said core through a transparent adhesive, and X axis line pattern formed on said lower surface film and having a regularly parallel stripe-like pattern printed thereon, a hard coat film formed on said X axis line pattern, a Y axis line pattern formed on an upper surface of said core through a transparent adhesive and printed black into a regularly parallel stripe-like pattern, a reflecting plate provided on said Y axis line pattern, and a protection sheet bonded to said reflecting plate.