Optical Touch Control Apparatus

An optical touch control apparatus, comprising:

• a light source projecting linear light;
• a light guide module having an optical information capturing position on a working surface, the light guide module guiding the light projected from the light source transforming the linear light projected from the light source into planar light, guiding the planar light to the optical information capturing position, and generating optical information according to light input through or reflected from the optical information capturing position, wherein the optical information relates to movement of an input device;
• an image sensor module for sensing the optical information, and generating an electronic signal according to the optical information, wherein the image sensor module is located at a lateral side of the light guide module;
• and
• a scattering layer, configured to scatter the light emitted from the light source and/or the light reflected from the input device;
• wherein the light guide module includes a bevel at a side opposing to the optical information capturing position, the bevel having a relative angle with respect to the working surface such that at least part of the linear light projected from the light source is transmitted through the bevel to reach the optical information capturing position and reflected from the optical information capturing position to reach the bevel, and at least part of the light reflected from the optical information capturing position to reach the bevel is reflected by the bevel to the image sensor module, and
• wherein the scattering layer is configured to reduce the intensity of the reflected light from the finger to the image sensor module.