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US 7,622,015 B2Granted
Stacked optical film package format
Assignee3M Innovative Properties Company
InventorNaoki Nakayama
Life of this patent
Estimating the term…
Abstract
An optical subassembly is described comprising a stack of at least two optical films bonded with an adhesive having a relatively high initial peel strength. The peel strength is capable of being reduced upon exposure to radiant energy. Method of making an optical subassembly and display are also described. The backlight of the display may provide the radiant energy that reduces the peel strength of the adhesive.
Claims19
A method of assembling an optical display providing a stack of optical films;
- wherein the stack comprises at least a first and second optical film bonded with an adhesive having an initial peel strength;
- exposing the adhesive to radiant energy thereby reducing the initial peel strength such that the first and second optical films are bonded with the adhesive prior to exposure and the first and second optical films can move independently relative to each other within the stack after exposure;
- and
- providing the bonded stack of optical films between a backlight and a display.
1 more element
A method of assembling an optical display providing a stack of optical films;
- wherein the stack comprises at least a first and second optical film bonded with an adhesive having an initial peel strength;
- exposing the adhesive to radiant energy after the stack of optical films is provided between a backlight and a display panel thereby reducing the initial peel strength such that the first and second optical films can move independently relative to each other.
Dependencies are inferred from the claim text.