Computer graphics processing and selective visual display system – Display peripheral interface input device
Patent
1997-07-14
2000-06-06
Chow, Dennis-Doon
Computer graphics processing and selective visual display system
Display peripheral interface input device
713323, 714 14, 714 15, 345168, G09G 500
Patent
active
06072465&
ABSTRACT:
A portable information processing apparatus, having a detachable liquid crystal display panel/input tablet, whereof the liquid crystal display panel/input tablet can be detached from the apparatus even when the main body is powered on, i.e., is being operated. The portable information processing apparatus comprises: support means for detachably supporting a liquid crystal display panel on a main body; detection means for detecting detachment/attachment of the liquid crystal display panel; and first and second connectors for providing a connection for video signal lines and a power line that connect the liquid crystal display panel and the main body. When the liquid crystal display panel is detached from the main body, the first and the second connectors can communicate with each other via a cable. When the detection means detects that the liquid crystal display panel has been detached, the output of video signals from the main body to the display panel is disabled, and then the power supply to the liquid crystal display panel is halted (local suspend). As a result, the disorderly open state of the signal output line and the power line to the display panel is avoided, and the deterioration of hardware is prevented. In parallel to the local suspend operation, the main body of the apparatus saves data required for the resumption of a task, and halts the operation of the entire system (system suspend).
REFERENCES:
patent: 5008846 (1991-04-01), Inoue
patent: 5233502 (1993-08-01), Beatty et al.
patent: 5241303 (1993-08-01), Register et al.
patent: 5375076 (1994-12-01), Goodrich et al.
patent: 5381043 (1995-01-01), Kohiyama et al.
patent: 5467469 (1995-11-01), Saito et al.
patent: 5467470 (1995-11-01), Ninomiya
Kataoka Rieko
Kobayashi Masaki
Maeda Kazuhiko
Awad Amr
Bogdon Bernard D.
Chow Dennis-Doon
International Business Machines - Corporation
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