Personal communicator having improved contrast control for a liq

Details Personal communicator having improved contrast control for a liq Personal communicator having improved contrast control for a liq

1993-11-01

1995-06-06

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345 63, 345147, G09G 322

Patent

active

054226562

ABSTRACT:
A personal communicator has a touch sensitive overlay coupled with a liquid crystal display (LCD). The communicator has two external (non-screen) up/down buttons for adjusting the volume of a cellular phone speaker. These volume buttons are also used to allow the user to adjust contrast. In accordance with one operation, contrast is adjusted in response to the user touching a predetermined area of the screen at the same time as one of the up or down buttons is actuated. In accordance with another operation, contrast is adjusted in response to the user first pressing both speaker volume buttons to enter a contrast adjustment mode, and thereafter pressing one or the other of such buttons, to increase or decrease contrast as desired.

REFERENCES:
patent: 5029982 (1991-07-01), Nash
patent: 5119204 (1992-06-01), Hashimoto et al.
patent: 5148155 (1992-09-01), Martin et al.
patent: 5166666 (1992-11-01), Tanaka
patent: 5260697 (1993-11-01), Barrett et al.

Affiliated with

Also associated with

Rating

Personal communicator having improved contrast control for a liq does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Personal communicator having improved contrast control for a liq, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Personal communicator having improved contrast control for a liq will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-990855