Abstract— Holographically reflective LCDs are approaching the production phase in Motorola portable products. They add improved performance and product differentiation to TN, STN and FSTN LCDs. Key features include up to two to three times improvement in brightness and contrast and elimination of image degradation due to glare. Without consuming additional power, the hologram provides a “backlit” appearance which further differentiates the product. Moreover, the current version of the holographic reflector has been “tuned” to the LCD so that the effective viewing cone is retained or even expanded slightly.

Monocolor and multicolor holographic reflectors have been designed and fabricated using DuPont holographic photopolymers. High brightness, saturated color and a choice of well-defined center wavelengths have been demonstrated. When affixed to the back of reflective LCDs, they provide enhanced contrast and brightness. The environmental stability and optical performance of DuPont films have demonstrated that they exceed the specifications of all Motorola portable products.Commercial products will be introduced in early 1998.