Touch-screen assembly with rigid interface between cover sheet and frame
AssigneeCorning Incorporated
InventorsWilliam James Miller, Lucas Wayne Yeary
Life of this patent
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Abstract
A touch-screen assembly for performing pressure sensing or force sensing is disclosed. The touch-screen assembly includes a cover sheet having touch-sensing capability and a frame having an upper surface portion. Spaced-apart adhesive islands are disposed between the cover sheet and the upper surface portion of the frame. The adhesive islands serve to secure the cover sheet to the frame and have a Young's modulus of greater than 1 MPa so that the energy associated with the touching force is not absorbed by the adhesive island. This makes for more accurate pressure-based or force-based touch sensing.
Claims12
A touch-screen assembly for performing pressure sensing or force sensing, comprising:
- a cover sheet having an upper surface and a bottom surface, the cover sheet having touch-sensing capability;
- a frame having an upper surface portion;
- and
- a plurality of islands disposed between the cover sheet and the upper surface portion of the frame, the islands being made entirely of a single adhesive material and serving to secure the cover sheet to the frame, wherein the islands have a Young's modulus of greater than 1 MPa.
A method of forming a touch-screen assembly for performing pressure sensing or force sensing due to at least one touching force, comprising:
- disposing on a surface portion of a frame a plurality of spaced-apart adhesive islands each made entirely of a single adhesive material;
- adhering a cover sheet to the frame using the spaced-apart adhesive islands;
- and
- allowing the spaced-part adhesive islands to become rigid to have a Young's modulus of greater than 1 MPa.
Dependencies are inferred from the claim text.