Optical touch apparatus and operating method thereof

A method of operating an optical touch apparatus, the optical touch apparatus comprising a first light source emitting module, a first optical module, a first light sensing module, and a processing module, the first optical module being set at a first side on a surface of the optical touch apparatus, the first light sensing module being set at a second side opposite to the first side on the surface, the method comprising the steps of:

• the first light source emitting module sequentially emitting a first light source and a second light source, wherein a plurality of scanning lights of the second light source is uniformly distributed above the surface;
• the first optical module receiving the first light source and uniformly emitting a plurality of first direction lights;
• the first light sensing module receiving the plurality of first direction lights and the plurality of scanning lights respectively, and generating a first sensing result and a second sensing result based on the condition of receiving the plurality of first direction lights and the plurality of scanning lights respectively, wherein the first sensing result and the second sensing result are related to whether the plurality of first direction lights and the plurality of scanning lights are blocked by at least one object above the surface respectively;
• and
• the processing module determining at least one touch point location corresponding to the at least one object on the surface based on the first sensing result and the second sensing result.

An optical touch apparatus, comprising:

• an emitting module, set at a first side on a surface of the optical touch apparatus, for receiving a first light source and uniformly emitting a plurality of lights;
• a receiving module, set at a second side opposite to the first side on the surface, for receiving the plurality of lights and a plurality of scanning lights emitted from a second light source respectively, and generating a first sensing result and a second sensing result based on the condition of receiving the plurality of lights and the plurality of scanning lights respectively, wherein the first sensing result and the second sensing result are related to whether the plurality of lights and the plurality of scanning lights are blocked by at least one object above the surface respectively;
• and
• a processing module, coupled to the receiving module, for determining at least one touch point location corresponding to the at least one object on the surface based on the first sensing result and the second sensing result.