Information conversion device with auxiliary address lines for enhancing manufacturing yield
AssigneeGeneral Electric Company
InventorDonald E. Castleberry
Life of this patent
Estimating the term…
Abstract
An enhanced manufacturing yield of a high resolution, high accuracy information conversion device, such as a liquid crystal display, is attained through incorporation into the device of auxiliary address lines. Such auxiliary address lines are used to provide electrical communication with portions of main address lines that, due to the presence of electrical open circuits, would otherwise be electrically isolated. Each auxiliary address line crosses over multiple main address lines and can be electrically shorted to any such main address line to provide electrical communication therewith. The ratio of auxiliary address lines to main address lines is accordingly low, such as 1:10 or less, for example.
Claims13
An information conversion device comprising:
- (a) a plurality of information-conversion cells arranged in X-Y matrix format;
- (b) a plurality of main X address lines of electrically conductive material;
- (c) a plurality of main Y address lines of electrically conductive material;
- (d) each of said cells being connected to a single main X address line and a single main Y address line with the specific main X address line and the specific main Y address line depending upon the location of said each of said cells in the matrix, so as to exhibit a unique address;
- (e) said main X address lines and said main Y address lines being oriented transverse to each other in a device area wherein said cells are electrically addressable by said main X address lines and said main Y address lines;
- and
- (f) at least one auxiliary X address line of electrically conducting material;
- (g) said auxiliary X address line crossing over at least one of said main X address lines in electrically insulated relation thereto and adapted to be permanently electricaly shorted to one of said main X address lines.
An information conversion device comprising:
- (a) a plurality of information-conversion cells arranged in X-Y matrix format and each including a respective liquid crystal display element;
- (b) a plurality of main X address lines of electrically conductive material;
- (c) a plurality of main Y address lines of electrically conductive material;
- (d) each of said cells being connected to a single main X address line and a single main Y address line with the specific main X address line and the specific main Y address line depending upon the location of said each of said cells in the matrix, so as to exhibit a unique address;
- (e) said main X address lines and said main Y address lines being oriented transverse to each other in a device area wherein said cells are electrically addressable by said main X address lines and said main Y address lines;
- and
- (f) a plurality of auxiliary X address lines of electrically conductive material;
- (g) said plurality of auxiliary X address lines crossing over at least one of said main X address lines in electrically insulated relation thereto at a location outside of said addressable area and adapted to be permanently electrically shorted to said one of said main X address lines.
Dependencies are inferred from the claim text.