3812394

Information

• Patent Grant
• 3812394

• References
• Source

• Patent Number

  3,812,394

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • H01J29/327 - Black matrix materials
  • H01J9/2278 - Application of light absorbing material
  • H01J29/187 - screens with more than one luminescent material (as mixtures for the treatment of the screens)
  • H01J29/322 - with adjacent dots
  • H01J29/89 - Optical or photographic arrangements structurally combined or co-operating with the vessel
  • H01J2229/8913 - Anti-reflection, anti-glare, viewing angle and contrast improving treatments or devices

• US Classifications

  • 313 - Electric lamp and discharge devices