Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP47077701Aexternal-prioritypatent/JPS4936268A/ja
Priority claimed from JP47077706Aexternal-prioritypatent/JPS4936271A/ja
Priority claimed from JP47077703Aexternal-prioritypatent/JPS4936269A/ja
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Publication of FR2195056A1publicationCriticalpatent/FR2195056A1/fr
Application grantedgrantedCritical
Publication of FR2195056B3publicationCriticalpatent/FR2195056B3/fr
H01J17/00—Gas-filled discharge tubes with solid cathode
H01J17/38—Cold-cathode tubes
H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters