Mitsubishi Denki Kabushiki Kaisha

Suguru Fujii

Koji Nakamura

Junko Itoh

Keitaro Tsukui

Tomoki Takizawa

Kenichi Umino

Tetsushin Yazu

Mikako Maeda

A cathode ray tube having a double-layer low-reflective coating layer, or a triple-layer low-reflective coating layer including a high-refractive transparent conductive layer formed on the outer surface of a face plate thereof, and a low-refractive smooth transparent layer formed on the outer surface of the high-refractive transparent conductive layer, or a low-refractive transparent layer having concavities and convexities formed on the low-refractive smooth transparent layer, wherein yellow dye or pigment is added to at least one of said three layers, whereby the reflection spectrum in the visible ray region can be flattened so that a cathode ray tube is obtained in which reflection in the short wavelength region and long wavelength region can be reduced, coloring can be suppressed, and natural external reflected light can be obtained.

Cathode ray tube

There are provided a cathode-ray tube display unit which can be manufactured with reduced weight and cost and which can have a screen plane flattened without the use of any metal band, and a method of making the same. The screen panel is previously deformed by the use of a jig and then sealingly connected to a funnel. After the jig has been removed, the interior of the display tube body is extracted to form a vacuum. The display tube body is distorted by the extraction, but such a distortion can be corrected by deformations previously applied to the display tube body. Thus, the screen plane can be flattened without the use of any metal band.

Cathode-ray tube display unit and method of making the same

Growing community of inventors

Nagaokakyo, Japan

Suguru Fujii