Moisture deflector for capacitive NFI touch screens for use with bezels of conductive material
Assignee3M Innovative Properties Company
InventorsMassoud Badaye, Gary O. Kaga
Life of this patent
Estimating the term…
Abstract
A non-conductive barrier between a touch screen and a conductive bezel is described. The non-conductive barrier attaches to a capacitive touch screen and forms a lip over a grounded bezel. The non-conductive barrier is constructed of a material and dimension sufficient to prevent liquid streaming down the touch screen from electrically coupling an active area of the touch screen to the grounded bezel.
Claims21
An apparatus, comprising:
- a non-conductive barrier configured for attachment to a display unit, the display unit including a capacitive touch screen and a bezel at least partially surrounding the capacitive touch screen, the non-conductive barrier being sufficient to form a discontinuity in a stream of liquid flowing between the capacitive touch screen and the bezel.
A touch sensitive display unit, comprising:
- a capacitive touch screen having an active portion and an inactive portion;
- a grounded bezel at least partially surrounding the touch screen;
- and
- a non-conductive barrier positioned to separate the capacitive touch screen from the grounded bezel such that a liquid streaming down the touch sensitive display unit does not form a conductive path coupling the active portion of the capacitive touch screen to the grounded bezel.
A method for reducing errors in a touch sensitive display unit including a capacitive touch screen and a bezel at least partially surrounding the capacitive touch screen, the method comprising:
- providing a non-conductive barrier configured for attachment to the display unit, the non-conductive barrier constructed to extend outwardly from the touch screen and to form a lip over the bezel a sufficient distance to cause a discontinuity in a stream of liquid flowing between the capacitive touch screen and the bezel.
Dependencies are inferred from the claim text.