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.
High temperature polysilicon (HTPS) projection engines provide a challenging environment for film-based optical components, especially the absorbing polarizers that are critical for image formation. Intrinsic polarizers do not contain unstable dichromophores and have been shown to be well suited for this application.
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