摘要:
A structure suitable for partial or full use in a spacer (24) of a flat-panel display has a porous face (54). The structure may be formed with multiple aggregates (100) of coated particles (102) bonded together in an open manner to form pores (58). A coating (88) consisting primarily of carbon and having a highly uniform thickness may extend into pores of a porous body (46). The coating can be created by removing non-carbon material from carbon-containing species provided along the pores. A solid porous film (82) whose thickness is normally no more than 20 nullm has a resistivity of 108 -1014 ohm-cm. A spacer for a flat-panel display contains a support body (80) and an overlying, normally porous, layer (82) whose resistivity is greater parallel to a face of the support body than perpendicular to the body's face.
摘要:
An electron-emitting device (20, 70, 80, or 90) contains an electrode, either a control electrode (38) or an emitter electrode (32), having a specified portion situated off to the side of the bulk of the electrode. For a control electrode, the specified portion is an exposure portion (38EA or 38EB) having openings that expose electron-emissive elements (50A or 50B) situated over an emitter electrode. For an emitter electrode, the specified portion is an emitter-coupling portion situated below at least one electron-emissive element exposed through at least one opening in a control electrode. Configuring the device in this way enables the control-electrode-to-emitter-electrode capacitance to be quite small, thereby enhancing the device's switching speed. If the specified portion of the electrode becomes short circuited to the other electrode, the short-circuit defect can be removed by severing the specified portion from the remainder of its electrode.
摘要:
A flat-panel cathode-ray tube display contains electron-emissive regions (54) spaced non-uniformly apart from one another in a line of the electron-emissive regions so as to better utilize the space where the electron-emissive regions are located. Alternatively or additionally, electron focusing can be appropriately made more concentrated by implementing each electron-emissive region as two or more portions 54A-54F) situated suitably with respect to openings (86A-86F) in an electron-focusing system (76).
摘要:
A light-emitting device (52, 80, 110, 128, or 130) suitable for a flat-panel cathode-ray tube display contains a light-emissive region (66) formed over a plate (64). The light-emissive region contains a plurality of light-emissive particles (72). Part of the outer surface of each light-emissive particle is conformally covered with one or more coatings (74, 82, 84, 112, and 114). The coatings variously provide light-reflection, gettering, intensity-enhancement, and contrast-enhancement functions.