| 摘要 |
<p>A touch-sensitive apparatus for determining a location (3) of at least one object (2) on a touch surface (102). The touch-sensitive apparatus extends in a direction of depth (D) and comprises a light transmissive panel (101), a display (201) arranged behind the light transmissive panel (101), and a first compartment (31) and second compartment (32) arranged behind the display (201). Light (5) from a light emitter arrangement (310) in the first compartment (31) is introduced into the light transmissive panel (101) for propagation by internal reflection. The light is thereafter coupled out to be received by a light detection arrangement (320) in the second compartment (32). The first and second compartments (31, 32) are separated, such that light from the light emitter arrangement (310) is prevented from reaching the light detection arrangement (320) without first having propagated in the light transmissive panel (101).</p> |
