Illuminated touchpad having parallax barrier light source module
Disclosed are an illuminated touchpad including a protection layer, a touch module, and a Parallax-Barrier light source module. The touch module is disposed between the protection layer and the Parallax-Barrier light source module. The Parallax-Barrier light source module has a Parallax-Barrier pattern or is used to produce the Parallax-Barrier pattern. The Parallax-Barrier light source module further has multiple patterns and produces multiple illuminated patterns by the patterns, or the Parallax-Barrier light source module directly produces the illuminated patterns. By the Parallax-Barrier pattern, lights of the illuminated patterns pass through the touch module and the protection layer to form multiple stereoscopic images.
1 . An illuminated touchpad, comprising:
a protection layer;
a touch module;
a Parallax-Barrier light source module, wherein the touch module is disposed between the protection layer and the Parallax-Barrier light source module, the Parallax-Barrier light source module has a Parallax-Barrier pattern or is disposed to produce the Parallax-Barrier pattern, the Parallax-Barrier light source module further has a plurality of patterns and produces a plurality of illuminated patterns by the plurality of patterns, or the Parallax-Barrier light source module directly produces the plurality of illuminated patterns, wherein the Parallax-Barrier light source module comprises:
a display module, wherein the touch module is disposed between the protection layer and the display module, the display module is disposed to produce the Parallax-Barrier pattern and the plurality of illuminated patterns, the Parallax-Barrier pattern has a plurality of slits, the display module is adapted to control positions of the plurality of illuminated patterns and positions of the plurality of slits of the Parallax-Barrier pattern, the plurality of illuminated patterns and the Parallax-Barrier pattern are imaged on the same plane, the plurality of illuminated patterns are produced in the plurality of slits of the Parallax-Barrier pattern, and
by the Parallax-Barrier pattern, lights of the plurality of illuminated patterns pass through the touch module and the protection layer to form a plurality of stereoscopic images; and
a controller, electrically connected to the touch module and the Parallax-Barrier light source module,
wherein the controller controls the Parallax-Barrier light source module to produce the plurality of illuminated patterns, and produces corresponding function signals in response to a position corresponding to the plurality of stereoscopic images on the illuminated touchpad being touched.
2 . The illuminated touchpad according to claim 1 , wherein a viewing angle of the plurality of stereoscopic images is less than or equal to 80 degrees.
3 . The illuminated touchpad according to claim 1 , wherein:
S′>S,
wherein S is a spacing between any two adjacent slits, and S′ is a spacing between two patterns or two illuminated patterns corresponding to the any two adjacent slits.
4 . The illuminated touchpad according to claim 1 , wherein:
1.00005
≤
S
′
/
S
≤
1
.
0
0
5
,
wherein S is a spacing between any two adjacent slits, and S′ is a spacing between two patterns or two illuminated patterns corresponding to the any two adjacent slits.
5 . The illuminated touchpad according to claim 1 , wherein the protection layer has a plurality of non-illuminated patterns on one side relative to the touch module.
6 . The illuminated touchpad according to claim 5 , wherein in response to a position corresponding to the plurality of non-illuminated patterns on the illuminated touchpad being touched, the controller produces other corresponding function signals.