Spacer for flat panel display and flat panel display

摘要

A spacer for a flat panel display having a coefficient of thermal expansion equal or close to that of a glass and having a strength and a predetermined conductivity is provided. The spacer for a flat panel display includes a sintered body containing MgAl₂O₄ preferably as a main phase. The sintered body preferably further contains MgO, and if it contains MgAl₂O₄ and MgO, a peak strength on a MgO (200) surface is preferably 0.5 to 50 when a peak strength on a MgAl₂O₄ (311) surface is 100 as measured by X-ray diffraction. The spacer is placed between a back plate having a cathode structure and a face plate placed with a predetermined spacing between itself and the back plate and having fluorescent pixel areas, and plays a role of maintaining the spacing.