| 摘要 |
PURPOSE:To obtain a high quality CRT phosphor screen with reduced pinholes and mixing colors and with a good shape of picture elements using the optical adhesion method by forming the phosphor screen using a panel with its inner surface roughness of 4mu or less. CONSTITUTION:An optical adhesion coating with the average thickness of approximately 0.5mu is formed by coating the inner surface of the panel of a 10- inch color picture tube with an optical adhesion compound and drying it. In this case, a panel with its inner surface roughness of approximately 2mu is used. A green phosphor powder is applied to the inner surface of the panel after exposure and is made to adhere to the location that shows adhesion by exposure and then an excessive phosphor powder applied to a non-exposure section is removed through air spray phenomenon. Then, a phosphor screen consisting of three-color phosphor stripes is formed by sequentially coating each of the corresponding emission sections on the inner surface of the panel with blue and red phosphors in the same way. |
