Front‐of‐Screen Display Components and Technologies

Abstract

Front‐of‐screen (FOS) display components are key to optimizing optical performance in displays as well as user experiences.

Direct‐Dry‐Film Optical Bonding: Finding New Applications

“…These materials reduce the specular reflectance further and increase the display contrast and legibility significantly in high ambient lighting. 2,5,6 The optical bonding of many components reduces the total reflectance of the stack drastically. It also improves the environmental performance and structural integrity of the display stack simultaneously and provides design flexibility.…”

“…It also improves the environmental performance and structural integrity of the display stack simultaneously and provides design flexibility. 2,3,6,7 The specular reflectance (R S ) of an interface between two non-absorbing media of refractive indices n 1 and n 2 is given by 8 R S = [(n 1 -n 2 )/(n 1 + n 2 )] 2 .…”

“…An anti‐reflective (AR) coating is usually applied to the top surface of the cover glass, along with possibly an anti‐smudge (AS, hydrophobic) coating and often an anti‐glare (AG) treatment. These materials reduce the specular reflectance further and increase the display contrast and legibility significantly in high ambient lighting 2,5,6 . The optical bonding of many components reduces the total reflectance of the stack drastically.…”

“…The optical bonding of many components reduces the total reflectance of the stack drastically. It also improves the environmental performance and structural integrity of the display stack simultaneously and provides design flexibility 2,3,6,7 . The specular reflectance ( R S ) of an interface between two non‐absorbing media of refractive indices n 1 and n 2 is given by 8 …”

“…Design capabilities such as these are not possible without optical bonding. 6. Added Functionality and Other Improvements: Bonding the display with appropriate complementary components such as touch screens, NVIS, ITO heaters, privacy films, and EMI and RFI absorbing layers can increase its functionality 1,2 6 . A display's solar and UV performance can be greatly increased by optically bonding it with solar rejection layers (IR filters, hot mirrors) and UV absorbing films 2,6 .…”