Patent ID: 7453420
Filing Date: 2008-11-18
Classification: G02F,G09G

Abstract:
1. An electronic device comprising: an array of pixels provided on a substrate and arranged in rows and columns, each pixel comprising a switch element; and a plurality of row and column address lines for addressing each pixel, wherein: each row and column address line is connected to a first discharge element through a first discharge device and to a second discharge element through a second discharge device, and electrical isolation/conduction means are provided between the first and second discharge elements, the first discharge device provides a unidirectional current path that allows the passage of charge between the address line and the first discharge element when the address line is at a potential below that of the first discharge element, and the second discharge device provides a unidirectional current path that allows the passage of charge between the address line and the second discharge element when the address line is at a potential above that of the second discharge element, the electrical isolation/conduction means electrically isolating the first discharge element from the second discharge element after mounting peripheral circuitry and/or during ordinary operation of the electronic device, while allowing the passage of charge between the first and second discharge elements before completion of the mounting of peripheral circuitry and/or except during said ordinary operation, and at least one of the first and second discharge elements has a configuration in which the one is in a substantially electrically floating state during ordinary operation of the electronic device.