Flexible display having damage impeding layer and method for manufacturing the same

Abstract

A flexible display includes a flexible base substrate, a thin film transistors layer formed on the flexible base substrate, and a light emitting elements layer formed on the thin film transistors layer, where the flexible base substrate includes a first support layer formed below the thin film transistors layer, a second support layer disposed below the first support layer, and a heat-energy blocking/reflecting layer provided between the first support layer and the second support layer. The heat-energy blocking/reflecting layer is configured to block or reflect a sufficient portion of radiated heat-energy that is generated when the flexible base substrate is separated from a supporting carrier substrate so as to prevent the damage from the radiated heat-energy to the light emitting elements layer.

What is claimed is: 
     
         1 . A method of manufacturing a flexible display device, the method comprising:
 adhering a base flexible substrate layer to and on a carrier substrate;   disposing on the base flexible substrate layer, a flexible heat-energy blocking/reflecting layer;   disposing above the heat-energy blocking/reflecting layer, a further layer of the flexible display device that can be damaged by exposure to an excessive amount of radiated heat-energy; and   after disposing the further layer that can be damaged by exposure to said excessive amount of radiated heat-energy, separating the base flexible substrate layer from the carrier substrate by using a separation process that generates radiated heat-energy where the radiated heat-energy can result in the excessive amount of radiated heat-energy that damages the further layer that can be damaged by exposure to said excessive amount of radiated heat-energy;   wherein the heat-energy blocking/reflecting layer is configured to block or reflect a sufficient portion of the generated radiated heat-energy so as to prevent the damage to the further layer that can be damaged by exposure to said excessive amount of radiated heat-energy.   
     
     
         2 . The method of  claim 1  wherein:
 the heat-energy blocking/reflecting layer is configured to block or reflect damaging photons in wavelength ranges below or above the visible range. 
 
     
     
         3 . The method of  claim 2  wherein:
 the heat-energy blocking/reflecting layer includes a metal that reflects IR photons. 
 
     
     
         4 . The method of  claim 3  wherein:
 the heat-energy blocking/reflecting layer includes or is attached to a material that prevents or impedes substantial permeation of moisture and/or oxygen therethrough. 
 
     
     
         5 . The method of  claim 1  wherein:
 the further layer that can be damaged by exposure to said excessive amount of radiated heat-energy is a light emitting and/or a selective light passage controlling layer of the flexible display device. 
 
     
     
         6 . The method of  claim 5  wherein:
 the further layer that can be damaged by exposure to said excessive amount of radiated heat-energy includes organic light emitting elements. 
 
     
     
         7 . The method of  claim 6  wherein:
 the organic light emitting elements can be damaged by exposure to moisture and/or oxygen; and 
 the heat-energy blocking/reflecting layer includes or is attached to a material that prevents or impedes substantial permeation of moisture and/or oxygen therethrough.