Invention Grant
- Patent Title: Cathode ray tube having a pigment on a panel front face
- Patent Title (中): 在面板前面具有颜料的阴极射线管
-
Application No.: US09769626Application Date: 2001-01-25
-
Publication No.: US06642647B2Publication Date: 2003-11-04
- Inventor: Maki Taniguchi , Masahiro Nishizawa , Norikazu Uchiyama , Toshio Tojo
- Applicant: Maki Taniguchi , Masahiro Nishizawa , Norikazu Uchiyama , Toshio Tojo
- Main IPC: H01J3100
- IPC: H01J3100

Abstract:
A color cathode ray tube is generally constituted from a panel section for visually displaying images and a neck portion containing therein an electron gun assembly plus a funnel section for coupling the panel section and the neck portion together. The panel comprises on its outer surface a colored film that includes a coloring matter or pigment for color-selective absorption of light rays and fine or micro-particles with electricity-resistant property for letting the pigment scatter or disperse. With said arrangement, it is possible to improve the light absorbability of the colored film, thereby enabling provision of the intended cathode ray tube with improved contrast.
Public/Granted literature
- US20020135291A1 Color cathode ray tube Public/Granted day:2002-09-26
Information query