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Methods for Improving Readability and Durability of High-Capacity, Reflective, Liquid Crystal Displays

IP.com Disclosure Number: IPCOM000039158D
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Demke, KR Lubart, ND [+details]

Abstract

Methods are described which lead to reduced glare from high-capacity, reflective, liquid crystal displays allowing increased readability. Not only is glare reduced, but durability is improved as well. The twisted nematic liquid crystal display (LCD), shown in Fig. 1, consists of many layers of material that are laminated together, as illustrated in Fig. 2. As can be seen, the outer surface is a polarizer made of plastic. Being plastic, this surface tends to be shiny and easy to scratch. It is very undesirable to have a display that has poor durability and creates glare. To protect the polarizer, a non-bonded hardened plastic layer (usually PLEXIGLASS*) is a common solution used in the industry. However, without bonding to the polarizer, an air gap is created between this new layer and the polarizer behind it.