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Brightness and contrast ratio: Contrast ratio is the ratio of the brightness of a full-on pixel to a full-off pixel. The LCD itself is only a light valve and does not generate light; the light comes from a backlight that is either fluorescent or a set of LEDs .
Hewlett-Packard 2014's desktop, monitor and laptop iPAQ h4150 Pocket PC from 2003. On December 23, 2008, HP released iPrint Photo for the iPhone. [112] HP's Personal Systems Group (PSG) was claimed by HP in 2005 to be "one of the leading vendors of personal computers ("PCs") in the world based on unit volume shipped and annual revenue". [111]
In March 1996, Hewlett-Packard released the OmniGo 700LX, a modified HP 200LX palmtop PC with a Nokia 2110 mobile phone piggybacked onto it and ROM-based software to support it. It had a 640 × 200 resolution CGA compatible four-shade gray-scale LCD screen and could be used to place and receive calls, and to create and receive text messages ...