Frame for unit module of a vacuum-fluorescent display
AssigneeInternational Standard Electric Corporation
InventorsHartmut Lenz, Helmut Thaler
Life of this patent
Estimating the term…
Abstract
A self-supporting frame member mounts a cathode and a control grid in mutual electrical contact to form a unit module that can be secured to other similar unit modules to construct a multi-character vacuum fluorescent display.
Claims13
A substantially self-supporting, flat frame member for mounting a cathode and a control grid to form a unit module for a vacuum-fluorescent display, the frame member including leg means comprising an open frame for surrounding all but a portion of the periphery of the control grid and also including attachment means for securing the frame member to a second, substantially identical frame member of an adjacent unit module such that said open frame is closed by the leg means of the second frame member to construct a multi-character display wherein the control grid is completely surrounded by leg means.
A substantially self-supporting frame member for mounting a cathode and a control grid to form a unit module for a vacuum-fluorescent display, the frame member including attachment means for securing the frame member to the frame member of an adjacent unit module to construct a multi-character display, wherein said frame member comprises a C-shaped frame with two legs connected by an upright portion and said attachment means comprises:
- two end-attachment means, one on the end of each of said legs;
- two side-attachment means, one on each of said legs, for cooperating with the side-attachment means of an adjacent unit module;
- and
- two upright-attachment means, one at each end of said upright member, for cooperating with the end-attachment means of an adjacent unit module.
A unit module for a vacuum-fluorescent display, the unit module comprising a self-supporting C-shaped frame, having two legs connected by an upright portion, a cathode, and a parallelogram-shaped control grid wherein:
- said C-shaped frame includes cathode mounting means for securing said cathode to said frame, first control grid mounting means for securing three sides of said control grid to said legs and upright portion of said frame, second control grid mounting means in said upright portion for securing to said frame the fourth, unsecured side of a control grid secured in a substantially identical, second unit module adjacent to said unit module and attachment means for securing said frame to the frame member of an adjacent unit module;
- and
- said control grid includes interframe mounting means for securing the fourth, unsecured side thereof to an adjacent frame element.
Dependencies are inferred from the claim text.