Transcription of Wide-Angle LCDs and the Tablet PC - Pen Computing
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This article attempts to make some sense outof those are a growing number of Tablet PCson the market with Wide-Angle screens (de-fined as having a viewing angle equal to orgreater than 100 in both directions). As ofmid-December 2004, the list includes the fol-lowing products: Fujitsu T4000 convertible HP TC1100 slate Motion M1400 slate LG-IBM T20 convertible Sharp TN10W convertibleHave you ever used a Tablet PC in por-trait mode and had trouble readingthe screen unless you held it at ex-actly the right angle? That s because mostTablet PCs today use standard notebookscreens that have been modified mechan-ically but not optically for use in a Tablet PC. Notebook screens usually have a widehorizontal viewing angle (typically 120 )and a narrow vertical viewing angle (typi-cally 45 ).
www.pencomputing.com PEN COMPUTING MAGAZINE 65 WIDE-ANGLE TECHNOLOGIES In late 1995, Hitachi invented “in-plane switching” (IPS), the first technology used to accomplish wide-angle …
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