Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2011-01-25
2011-01-25
Wang, Quan-Zhen (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C178S018060
Reexamination Certificate
active
07876308
ABSTRACT:
The invention pertains to a display device, the surface of the device being rendered touch-sensitive, the device comprising a first dedicated part comprising two insulating plates, a layer of material exhibiting electro-optical properties suitable for rendering all or part of its surface visible under the effect of an electrical control signal, the layer being disposed between the two plates, at least one first electrode having the shape of a pictogram, the first electrode being disposed on a face of one of the insulating plates, a second electrode disposed on a face of the other insulating plate opposite at least one first electrode. According to the invention, the second electrode is used as responsive element of the touch-sensitive surface of the device, the surface area of the second electrode is at least 9 mm2, and the surface area of the second electrode is greater than the surface area or the sum of the surface areas of the first electrode or electrodes opposite.
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Chow Yuk
Lowe Hauptman & Ham & Berner, LLP
Thales
Wang Quan-Zhen
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