Hitachi, Ltd.

Hitachi Displays, Ltd.

Mitsuru Igarashi

Masaaki Yamauchi

Minoru Yabe

Mamoru Ikeda

Hisao Yamazaki

Satoru Endoh

Stacked mother substrates are efficiently separated into individual display device substrate-units by a scribing and breaking method. In a state in which the transported stacked mother substrates PN are held in a raised state, scribe lines SBL, SBLare formed on a first substrate SUBand a second substrate SUBat the same position. Then, first of all, the stacked mother substrates are broken into strip-like substrates by breaking a periphery and removing a peripheral wastage and, thereafter, the strip-like substrates are broken into display device substrate-units PNL and, thereafter, internal wastages of the respective display device substrate-units PN are separated and removed.

Manufacturing method of display device in which the main surface of the workpiece is at an angle

In an in-line type electron gun structure including three in-line type electron guns and a plurality of grid electrodes respectively aligned with the electron guns, each sleeve electrode has a length equal to at least 50% of an inner diameter thereof and the inner diameter is gradually increased toward a free end of the sleeve-shaped electrode from a point at about one half of the length thereof. This construction eliminates an auxiliary electrode, thus reducing the cost of manufacturing.

In-line type electron gun structure

Growing community of inventors

Mobara, Japan

Mitsuru Igarashi