Display device comprising light guide

• Main Authors: P.L.H.M. COBBEN, J. MARRA, G.G.P. VAN GORKOM
• Format: Patent
• Language: English
• Published: 28.08.2002
• Edition: 7
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; BLASTING; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LABELS OR NAME-PLATES; LIGHTING; MECHANICAL ENGINEERING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SEALS; SIGNS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; WEAPONS

A display device comprises row ( 5 ) and column ( 6 ) electrodes and a movable element ( 3 ) and means ( 17 ) for supplying voltages to the electrodes, wherein the row electrodes are situated on the movable element. The means supply, in operation, such voltages to the electrodes that use is made of the memory effect of the movable element. More in particular, the row electrodes are, in operation, supplied with "on", "off" and "hold" voltages and the column electrodes are supplied with "hold" and 'off'-voltages. Application of "on" voltages turns on the pixels in a row, simultaneous application of "off" voltages turns a pixel off. Application of a "hold" voltage to either one of the electrodes preserves the status of the pixel.