Display device for forming a frame on a display when the device

Details Display device for forming a frame on a display when the device Display device for forming a frame on a display when the device

1988-03-30

1990-05-01

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

350350S, G09G 336

Patent

active

049222414

ABSTRACT:
A display device includes a display having a group of scanning electrodes disposed in a horizontal direction, a group of signal electrodes disposed in a vertical direction, and a liquid crystal with a memory disposed therebetween. The groups of scanning and signal electrodes are opposed to each other and are spaced apart by a predetermined spacing. The display device also includes a mode memory for storing data relating to the selection of a block access mode, in which the scanning electrodes are driven for every block, each block including a plurality of scanning electrodes, and a line access mode, in which the scanning electrodes are driven for every line of the scanning electrodes. Also provided are a device for supplying access data to designate a line of the scanning electrodes to be accessed, a frame data memory for storing data to form a frame on the display means when the block or line access mode is selected, a signal electrode drive for driving the signal electrodes, a scanning electrode drive the scanning electrodes in accordance with the data stored in the memory in response to the supplying of access data from the supply device, and a frame drive for forming a frame in accordance with the data stored in the frame data memory in response to the selection of the block or line access mode.

REFERENCES:
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patent: 4184153 (1980-01-01), Glaubitz
patent: 4242679 (1980-12-01), Morozumi et al.
patent: 4308534 (1981-12-01), Yamamoto
patent: 4412214 (1983-10-01), Tanaka et al.
patent: 4655561 (1987-04-01), Kanbe et al.
patent: 4693563 (1987-09-01), Harada et al.
patent: 4711531 (1987-12-01), Masubuchi

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