US 2024/0201744 A1 · PORTABLE INFORMATION HANDLING SYSTEM KEYBOARD MEMBRANE HAVING LIQUID DETECTION

Abstract

A portable information handling system is assembled and disassembled by a keystone assembly that couples at an upper surface of the portable housing to overlap a keyboard assembly that covers processing components disposed in the portable housing. The keyboard assembly includes a membrane having plural input sensors and plural liquid detection circuits exposed at a surface of the membrane to detect liquid spillage, such as exposed conductive pads that short in the presence of a liquid or resistive circuits that sense changes in resistance associated with contact with a liquid. A processing resource interfaced with the liquid detection circuits stores liquid detection events in non-transitory memory of the membrane, such as a controller and flash memory coupled to a printed circuit board formed in the membrane.

Claims20

Dependent claims

An information handling system comprising:

a housing having first and second housing portions rotationally coupled by a hinge;
a processor disposed in the first housing portion and operable to execute instructions that process information;
a memory disposed in the first housing portion and interfaced with the processor, the memory storing the instructions and information;
and
a keyboard assembly having plural keys at an upper surface of the first housing portion configured to accept end user key press inputs, the plural keys disposed over a keyboard membrane having key input sensors configured to detect the key press inputs, the keyboard membrane having plural liquid detection circuits configured to detect liquid spilled on the keyboard membrane.

2 more elements

Dependencies are inferred from the claim text.

Portable information handling system keyboard membrane having liquid detection

Life of this patent

Portable information handling system keyboard membrane having liquid detection

Life of this patent

Abstract

Claims20