Computer graphics processing and selective visual display system – Display peripheral interface input device – Including keyboard
Patent
1997-02-13
1999-09-07
Brier, Jeffery
Computer graphics processing and selective visual display system
Display peripheral interface input device
Including keyboard
345100, 345126, 345179, 345905, 361680, 361681, 3647081, G09G 336, G09G 534, G09G 500, G06F 116
Patent
active
059494085
ABSTRACT:
A computer device, for instance a palmtop personal organizer, has a dual-orientation display device with both portrait and landscape modes of viewing the display. The keyboard is automatically disabled when the portrait mode is selected by a user. The display has two digitized regions separated by a workspace, which is preferably also digitized to provide input commands to a processor unit when touched. The display further includes indicia, such as icons or symbols shown on the display, which may be selected to activate a computer program, function or command. These icons are slanted and permanently fixed to the display, so they may be readily understood when viewed from either the portrait or landscape modes. A method is also provided of displaying indicia for viewing from two orthogonal directions. The invention further includes a way to use an analog touch-sensitive panel, having opposing resistive layers, to trigger an interrupt line used for returning the palmtop from a sleep mode. In addition, screen image rotation is accomplished by alternately configuring sets of LCD select lines either as column lines or row lines.
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Hewlett-Packard Patent Application S/N 08/433,771 filed on May 3, 1995.
Hewlett-Packard Patent Application S/N 08/535,724 filed on Sep. 28, 1995.
Kang Beng Hong
Tan Jin-Meng
Tedja Eswin
Yeung Chun Wun
Brier Jeffery
Hewlett--Packard Company
Lewis David L
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