BACKSIDE ACCESSIBLE DISPLAY

Abstract

A light board is made with a receptacle substrate for holding cassette light units. The convenience of assembly and disassembly of the light units from the receptacle substrate makes the product easily to be maintained for changing different color light units, changing different displaying patterns, and removing or replacing a failure light unit.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a traditional light board.

FIG. 2A is a top view of a cassette light unit used in the present invention.

FIG. 2B is a side view of FIG. 2.

FIG. 3 is a top view of a first embodiment of the present invention with single light unit.

FIG. 4A is a top view of a light board of the present invention before insertion of a light unit.

FIG. 4B is a side view of FIG. 4A.

FIG. 5 is a top view of a light board of the present invention with multiple light units.

FIG. 6 is an elevation view of a backside accessible light board according to the present invention.

FIG. 7 is a light board after insertion of a light unit

FIG. 8 is a light board with a line of light units.

FIG. 9 is a display with matrix light units.

FIG. 10 is an alternative design for the present invention.

Claims

1. A backside accessible display, comprising: (1) a plurality of light units, each having a pedestal with a top electrode, and a bottom electrode;(2) a plurality of first coplanar parallel metals, having openings for light emission of said light unit; and being electrically coupled to said top electrode; and(3) a plurality of second coplanar parallel metals, electrically coupled to said bottom electrode; having at least one accessible opening for insertion of said light units.

2. A backside accessible display as claimed in claim 1, wherein each said light unit has a pedestal with a contour selected from the group consisting of rectangular contour, triangular, and elliptical contour.