US 5,767,818 AGranted

Display device

OwnerShinsuke Nishidainventor

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Abstract

A display device which includes a simplified wiring for respective display elements is provided to facilitate the assembly and maintenance. The display device is constituted of a large number of display units (50) arranged in a matrix, each including a display element (10) composed of a light bulb, a regulator (51) composed of a relay, an nonvolatile memory (52) composed of an EEPROM, and a controller (53) composed of a CPU. A common electric power transmission line (61) and a common signal transmission line (71) are wired for the plural display units (50). A display signal including address information and data information is supplied to the signal transmission line (71). Each controller (53) controls an associated regulator (51) to light on/off an associated display element (10), based on the data information in the display signal only when the address stored in the nonvolatile memory (52) agrees with the address information in the display signal.

Claims6

Dependent claims

A display device having an array of display elements to display information, each of said display elements having a function to electrically change display modes of a pixel, said display device comprising:

a plurality of display units, each of said display units including a display element, a regulator for controlling supply of electric power to the display element, memory means for storing prescribed address information, and a controller for controlling the regulator based on the address information stored in the memory means and a display signal supplied from outside the display units;
a casing for fixedly accommodating said display units with the display elements arranged adjacent to each other on a display screen;
an electric power source for generating electric power for driving the display elements;
a control device for generating said display signal indicating a display mode of the display elements;
electric power transmission means for supplying the electric power generated by the electric power source to the regulators in the respective display units accommodated in the casing;
signal transmission means for supplying the display signal generated by the control device to the controllers in the respective display units;
wherein respective unique address information is stored in the respective memory means of the display units and the display signal contains address information for indicating a specific display unit and data information for indicating a specific display mode;
wherein the controller controls the regulator based on the data information in the display signal when the address information stored in the memory means corresponds to the address information contained in the display signal;
wherein a plurality of display elements are provided in each display unit;
wherein the address information contained in the display signal includes first address information indicative of a specific display unit and second address information indicative of a specific display element in a display unit;
and
wherein the controller controls a regulator for a specific display element indicated by the second address information based on the data information in the display signal when the address information stored in the memory means corresponds to the first address information.

9 more elements

a plurality of display units, each of said display units including a display element, a regulator for controlling supply of electric power to the display element, memory means for storing prescribed address information, and a controller for controlling the regulator based on the address information stored in the memory means and a display signal supplied from outside the display units;
a casing for fixedly accommodating said display units with the display elements arranged adjacent to each other on a display screen;
an electric power source for generating electric power for driving the display elements;
a control device for generating said display signal indicating a display mode of the display elements;
electric power transmission means for supplying the electric power generated by the electric power source to the regulators in the respective display units accommodated in the casing;
and
signal transmission means for supplying the display signal generated by the control device to the controllers in the respective display units;
wherein respective unique address information is stored in the respective memory means of the display units and the display signal contains address information for indicating a specific display unit and data information for indicating a specific display mode;
wherein the controller controls the regulator based on the data information in the display signal when the address information stored in the memory means corresponds to the address information contained in the display signal;
an address setting line for serially connecting a plurality of controllers in all or a part of the display units;
wherein the respective controller has a function of address setting in which when prescribed address information is supplied to an input side of the address setting line, the address information is stored in the memory means, and the address information is renewed and outputted to an output side of the address setting line.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/648,169Filed 22 May 1996
Priority: JP 6-25761827 Sep 1994
Granted: 16 Jun 1998
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

G09G 3/2085
For presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged…:…
G09F 9/3026
Characterised by the form or geometrical disposition of the individual elements: video wall, i.e. stackable semiconductor matrix display modules
G09F 9/307
In which the desired character or characters are formed by combining individual elements: being incandescent filaments
G09G 3/20
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes: for presentation of an…