초록 ▼

The intensity at which electrons emitted by a first plate structure (10) in a flat-panel display strike a second plate structure (12) for causing it to emit light is controlled so as to reduce image degradation that could otherwise arise from undesired electron-trajectory changes caused by effects s

The intensity at which electrons emitted by a first plate structure (10) in a flat-panel display strike a second plate structure (12) for causing it to emit light is controlled so as to reduce image degradation that could otherwise arise from undesired electron-trajectory changes caused by effects such as the presence of a spacer system (14) between the plate structures. An electron-emissive region (20) in the first plate structure typically contains multiple laterally separated electron-emissive portions (201 and 202) for selectively emitting electrons. An electron-focusing system in the first plate structure has corresponding focus openings (42P1 and 42P2) through which electrons emitted by the electron-emissive portions respectively pass. Upon being struck by the so-emitted electrons, a light-emissive region (22) in the second plate structure emits light to produce at least part of a dot of the display's image.

대표청구항 ▼

1. A flat-panel display comprising:a first plate structure comprising an electron-emissive region for emitting electrons; and a second plate structure comprising a light-emissive element for emitting light upon being struck by electrons, electrons emitted from the electron-emissive region striking t

1. A flat-panel display comprising:a first plate structure comprising an electron-emissive region for emitting electrons; and a second plate structure comprising a light-emissive element for emitting light upon being struck by electrons, electrons emitted from the electron-emissive region striking the light-emissive element with an intensity having an electron-striking centroid along the second plate structure for causing the light-emissive element to emit light with an intensity having a light-emitting centroid along the second plate structure, the light-emitting centroid being shifted in a primary direction due to shifting of the electron-striking-centroid in the primary direction, the display having a primary centroid shift ratio RP defined as (a) the amount of shift of the light-emitting centroid in the primary direction divided by (b) the accompanying amount of shift of the electron-striking centroid in the primary direction, the plate structures including means for causing primary centroid shift ratio RP to be no more than 0.5 when the magnitude of shift of the electron-striking centroid in the primary direction is in a shift range appropriate to the light-emissive element.