Patent ID: 11954939
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 13:
14. An electronic device comprising:
a liquid crystal display (LCD) panel for receiving a contact input associated with a fingerprint of a user;
a cover layer comprising a first major surface defining a plane, the cover layer disposed on the LCD panel as an interface for being touched by the user within a predetermined fingerprint sensing area, wherein a projection of the predetermined fingerprint sensing area onto the plane of the first major surface has a length L2 along an in-plane axis of the plane of the first major surface;
one or more light sources for producing light that passes through the LCD panel to illuminate the predetermined fingerprint sensing area; and
an optical sensor module for receiving light that passes through the LCD panel to detect the fingerprint, wherein a projection of the optical sensor module onto the plane of the first major surface has a length L1 along the in-plane axis of the plane of the first major surface, wherein L1<L2;
wherein the optical sensor module is positioned in a plane which is inclined at an angle with respect to a horizontal plane of the LCD panel, and wherein the projection of the optical sensor module completely overlaps with the projection of the predetermined fingerprint sensing area, such that an overlap between the projection of the optical sensor module and the projection of the predetermined fingerprint sensing area is equal to the length L1.