公开(公告)号：EP0746836B1

公开(公告)日：1999-09-01

申请号：EP95937995.9

申请日：1995-12-04

申请人： Koninklijke Philips Electronics N.V. ,  TEKTRONIX INC.

发明人： BURGMANS, Adrianus, L., J. ,  VAN HELLEPUTTE, Henri, R., J., R. ,  BONGAERTS, Petrus, F., G. ,  BRUININK, Jacob ,  KUIJK, Karel, Elbert ,  KHAN, Babar, Ali ,  BUZAK, Thomas, S. ,  ILCISIN, Kevin, J. ,  MARTIN, Paul, C.

IPC分类号： G09F9/35 ,  G02F1/1333

CPC分类号： G02F1/13334

摘要： A plasma-addressed electro-optic display device comprising a layer of electro-optic material, data electrodes coupled to the electro-optic layer and adapted to receive data voltages for activating portions of the electro-optic layer, and a plurality of plasma channels extending generally transverse to the data electrodes for selectively switching on said electro-optic portions. The plasma channels each comprise spaced elongated cathode and anode plasma electrodes and an ionizable gas filling. To improve performance and increase the effective aperture and provide a stable discharge, the channels are configured with a substantially flat bottom surface portion and curved side wall surface portions on which the electrodes are deposited such that the spacing between the electrodes is increased and the electrode surfaces form an angle of the order of 90°. Additional features include provision of black masking to screen out incident light that may depolarize, and a novel method of forming the electrodes using a single mask.

公开(公告)号：EP0746835B1

公开(公告)日：1999-08-18

申请号：EP95937993.4

申请日：1995-12-04

申请人： Koninklijke Philips Electronics N.V.

发明人： BURGMANS, Adrianus, L., J. ,  VAN HELLEPUTTE, Henri, R., J., R. ,  BONGAERTS, Petrus, F., G. ,  BRUININK, Jacob ,  KUIJK, Karel, Elbert ,  KHAN, Babar, Ali ,  BUZAK, Thomas, S. ,  ILCISIN, Kevin, J. ,  MARTIN, Paul, C.

IPC分类号： G09F9/35 ,  G02F1/1333

CPC分类号： H01J17/485 ,  G02F1/13334

摘要： A plasma-addressed liquid crystal color display device comprising a layer of liquid crystal material, data electrodes coupled to the liquid crystal layer and adapted to receive data voltages for activating pixels of the liquid crystal layer, and a plurality of ionizable-gas-filled plasma channels extending generally transverse to the data electrodes for selectively switching on said liquid crystal pixels. The plasma channels are sealed off by a thin dielectric sheet, and a color filter layer is provided in the device through which changes in the attenuation of the liquid crystal pixels may be viewed to obtain a color image. To reduce the magnitude of the data voltages needed to activate the device, the device layers are configured and given compositions such that a much higher fraction of the applied data voltages appears across the liquid cyrstal layer thereby allowing a smaller data voltage to be used to obtain the same effect on the liquid crystal pixels. Another feature of the invention includes location of the color filter between the substrate supporting the column electrodes and the column electrodes. Still a further feature is a color filter made up of dyed porous segments of an anodized aluminum film, or of evaporated pigment segments.

公开(公告)号：EP0746796B1

公开(公告)日：2003-02-12

申请号：EP95936724.4

申请日：1995-11-29

申请人： Koninklijke Philips Electronics N.V.

发明人： BURGMANS, Adrianus, L., J. ,  VAN HELLEPUTTE, Henri, R., J., R. ,  BONGAERTS, Petrus, F., G. ,  BUZAK, Thomas, S. ,  ILCISIN, Kevin J. ,  MARTIN, Paul, C. ,  BRUININK, Jacob ,  KUIJK, Karel, Elbert ,  KHAN, Babar, Ali

IPC分类号： G02F1/1343 ,  G09F9/35

CPC分类号： H01J17/485 ,  G02F1/13334 ,  H01J17/066

摘要： A plasma-addressed electro-optic display device comprising a layer of electro-optic material, data electrodes coupled to the electro-optic layer and adapted to receive data voltages for activating portions of the electro-optic layer, and a plurality of plasma channels extending generally transverse to the data electrodes for selectively switching on said electro-optic portions. The plama channels each comprise spaced elongated cathode and anode plasma electrodes and an ionizable gas filling. To improve performance, reliability and lifetime of the device, at least the cathode electrodes have surface portions comprised of a negative electron affinity material. Preferably, the negative electron affinity material is a film of conductive or semiconductive diamond, diamond-like carbon, or aluminum nitride.