Polarization decoder
AssigneeDocument Security Systems, Inc.
InventorKenneth M. Wicker
Life of this patent
Estimating the term…
Abstract
At least a portion of a polarizing layer in the display screen is omitted or removed to temporarily disable image generation but an equivalent polarizing layer is used as a replacement or as a substitute for enabling the display of images on the screen. For instance, the omitted or removed polarizing layer can be replaced in situ or a remote polarizing layer can be substituted through which the images on the display can be seen. The selective reassembly of the display can be used for purposes of security or promotion.
Claims18
A promotional display system comprising:
- a liquid crystal display having at least a portion of a polarizing layer missing from the display to disable the corresponding portion of the display,
- a branded item incorporating a polarizing layer through which a customer can view the liquid crystal display while holding the branded item, and
- the polarizing layer of the branded item having polarization characteristics that enable the customer to view video images generated within the corresponding portion of the display.
A liquid crystal display having a portion designated for secured access comprising:
- a frame,
- a polarizing layer overlapping a limited portion of a locally addressable liquid crystal layer within the frame for enabling the generation of the images within a corresponding limited portion of the display,
- a remaining portion of the locally addressable liquid crystal layer within the frame being devoid of the overlapping polarizing layer for temporarily disabling the generation of images within a corresponding remaining portion of the display,
- a separate polarizing layer being shaped as a blade, and
- a slot formed in the frame for receiving the blade in a position overlapping the remaining portion of the locally addressable liquid crystal layer for enabling the generation of images within the remaining portion of the display.
A method of promoting products comprising the steps of:
- providing a liquid crystal display having at least a portion of a polarizing layer missing from the display to disable the corresponding portion of the display,
- incorporating a polarizing layer within a branded item through which a customer can view the liquid crystal display while holding the branded item, and
- relating the polarizing layer within the branded item to the polarizing layer missing from the display to enable the customer to view video images generated within the corresponding portion of the display.
A method of providing secure access to a limited portion of a liquid crystal display comprising steps of:
- providing a polarizing layer that (a) overlaps a limited portion of a locally addressable liquid crystal layer within the frame for enabling the generation of the images within a corresponding limited portion of the display and (b) does not overlap a remaining portion of the locally addressable liquid crystal layer within the frame for temporarily disabling the generation of images within a corresponding remaining portion of the display,
- providing a separate polarizing layer being shaped as a blade, and
- forming a slot in the frame for receiving the blade in a position overlapping the remaining portion of the locally addressable liquid crystal layer for enabling the generation of images within the remaining portion of the display.
Dependencies are inferred from the claim text.