Abstract: An electron emission device that is driven at a low voltage has lower power consumption, and can be mass-produced. An electron emission display device includes the electron emission device, The electron emission device includes: a base substrate; a cathode electrode disposed on the base substrate; an electron emission source disposed on the cathode electrode; a data electrode disposed above the electron emission source; a scan electrode disposed above the data electrode; and insulating layers insulating each electrode from the other electrodes. A method of driving the electron emission device includes maintaining a voltage at the cathode electrode of below 0 V or a ground level, maintaining a positive voltage at the scan electrode, and maintaining a voltage at the data electrode of below 0 V; and intermittently providing a positive voltage at the data electrode for a predetermined period of time such that electrons can travel toward the scan electrode for the predetermined period of time.

Abstract: A process for fabricating a faceplate for a flat-panel display such as a field emission cathode type display is disclosed, the faceplate having integral spacer support structures. Also disclosed is a product made by the aforesaid process.

Abstract: A process for fabricating a face plate for a flat-panel display such as a field emission cathode type display is disclosed, the face plate having integral spacer support structures. Also disclosed is a product made by the aforesaid process.

Abstract: A cathode ray tube includes a panel and a reinforcing band for implosion-protection that is located around a side wall of the panel. The reinforcing band is formed by folding over one side in a width direction of a belt-like metal plate (6) so as to have a partially twofold structure and by joining both end portions of the belt-like metal plate (6) so as to be in the shape of a closed loop extending along the side wall of the panel. One end portion and the other end portion of the both end portions are joined together so as to achieve a threefold structure in at least one part. This can achieve a strong reinforcing band at a low cost without using a special member.

Abstract: There is provided a cathode-ray tube including an envelope having a neck, a funnel and a panel fused to the funnel by using frit glass, the outside of the panel being near flat, the inside of the panel having a predetermined curvature, in which 1.7≦T2/T1≦2.3 when T1 is the thickness of the center of the panel and T2 is the thickness of the diagonal corner of the panel, and a panel inside tensile stress at the fused portion of the panel and funnel is less than −1.3876x+128.24 (Kgf/cm2) when the size of the effective picture area of the cathode-ray tube is x(unit: cm). The panel inside tensile stress at the fused portion of the panel and funnel is maintained below a predetermined value to mitigate breakage inside the furnaces that occurs when the cathode-ray tube having the panel whose outside is near flat and whose inside has a predetermined curvature is reproduced, thereby improving the salvage rate.

Abstract: A process for fabricating a face plate for a flat panel display such as a field emission cathode type display is disclosed, the face plate having integral spacer support structures. Also disclosed is a product made by the aforesaid process.

Abstract: A light device includes a shielding plate (2) having an opening (2H) of a rectangular cross-sectional configuration and placed over an optical window retainer (15). The shielding plate (2) is placed so that an opening wall surface (2HS) thereof is positioned on an optical path (Zr(x)) of light emerging from an optical window (14) at a usable angle (&thgr;e) and that a half width (Xu) of the opening (2H) satisfies Xu=u/cot(&thgr;e)+t×sin(&thgr;e)/sgrt(ng2−sin2(&thgr;e))+s. The optical window retainer (15) is placed in a region outside a boundary line given as Zh(x)=±(1×tan(&thgr;e)(x±Xu)+u (plus (+) when x≦−Xu; minus (−) when x≧Xu) and also in aregion outside the optical path (Zr(x)). The light source device suppresses an uneven illuminance distribution of exposure light resulting from superimposition of light scattered from the opening wall surface of the optical window retainer upon the exposure light.

Abstract: A process for fabricating a face plate for a flat panel display such as a field emission cathode type display, the face plate having integral spacer support structures is disclosed. Also disclosed is a product made by the aforesaid process. The support structures are designed to be load bearing so as to prevent implosion of a planar, transparent face plate toward a parallel spaced-apart base plate when the space between the face plate and the base plate is sealed at the edges of the display to form a chamber, and the chamber is evacuated in the presence of atmospheric pressure outside the chamber. Unlike most spacer support structures proposed for such flat panel displays, the support structures are made from the same material as the substrate from which the face plate is fabricated. For a preferred embodiment of the process, a perforated laminar template is sealably sandwiched between a laminar silicate glass substrate and a manifold block to form a temporary sandwich assembly.

Abstract: A process for fabricating a face plate for a flat panel display such as a field emission cathode type display, the face plate having integral spacer support structures is disclosed. Also disclosed is a product made by the aforesaid process. The support structures are designed to be load bearing so as to prevent implosion of a planar, transparent face plate toward a parallel spaced-apart base plate when the space between the face plate and the base plate is sealed at the edges of the display to form a chamber, and the chamber is evacuated in the presence of atmospheric pressure outside the chamber. Unlike most spacer support structures proposed for such flat panel displays, the support structures are made from the same material as the substrate from which the face plate is fabricated. For a preferred embodiment of the process, a perforated laminar template is sealably sandwiched between a laminar silicate glass substrate and a manifold block to form a temporary sandwich assembly.

Abstract: A process for fabricating a face plate for a flat panel display such as a field emission cathode type display, the face plate having integral spacer support structures is disclosed. Also disclosed is a product made by the aforesaid process. The support structures are designed to be load bearing so as to prevent implosion of a planar, transparent face plate toward a parallel spaced-apart base plate when the space between the face plate and the base plate is sealed at the edges of the display to form a chamber, and the chamber is evacuated in the presence of atmospheric pressure outside the chamber. Unlike most spacer support structures proposed for such flat panel displays, the support structures are made from the same material as the substrate from which the face plate is fabricated. For a preferred embodiment of the process, a perforated laminar template is sealably sandwiched between a laminar silicate glass substrate and a manifold block to form a temporary sandwich assembly.

Abstract: A phosphor screen is formed on an inner surface of a faceplate and has a plurality of regions which are dividedly scanned by electron beams emitted from a plurality of electron guns. Support units are arranged between the faceplate and a rear plate of an envelope so as to support the faceplate and rear plate under atmospheric pressure. Each of the support units includes a plurality of support members, each having one end abutting against the faceplate and the other end abutting against the rear plate, and a plurality of connecting members each connecting a predetermined number of support members and fixed to the faceplate.

Abstract: The disclosure relates to display sets wherein the image produced by a cathode-ray tube is displayed on a display screen by means of an optical device. It relates more particularly to means for facilitating the relative positioning between the cathode-ray tube and the optical device. The cathode-ray tube comprises a bulb having one end closed by a transparent plate bearing an cathodoluminescent screen. In one characteristic, the transparent plate is greater than the bulb and comprises a peripheral part that extends beyond the bulb so as to constitute a reference marker of the position of the cathodoluminescent screen. FIG. 1.

Abstract: In a flat-shaped display apparatus has a face plate, a rear plate, side plates, and necessary electrodes therein, a supporting plate and plural supporting rods which are connected to an edge of the supporting plate at intervals of a certain distance are provided between the face plate and the rear plate. The supporting rods are made of metal and all bonded parts are covered by guide plates so that no adhesive is exposed to the electron beams. Therefore, over-scanning of the electron beams can be made, without the electron beams impinging on the adhesive thereby enabling effective distortion compensation.

Abstract: The electron gun comprises an electron lens assembly including a pair of terminal electrodes fixedly mounted along a pair of glass support rods. Disposed between the terminal electrodes is a resistive lens stack of alternate apertured electrode plates and resistive spacer blocks. The electrode plates and resistive spacer blocks are urged into good electrical contact with each other and with the terminal electrodes by a plurality of leaf springs. The electrode plates are preferably lightly contacted by the glass support rods to prevent lateral movement of the plates without preventing their spring-urged contact with the resistive blocks.

Abstract: Interrelated optical, mechanical and electronic improvements are incorporated in a television projection system comprising a plurality of color separation assemblages, each including cathode ray components and projection optics components, certain of which are enclosed with a cathode ray tube. These improvements specifically involve optical mounts of particular construction, optical surfaces of particular configuration and electronic materials of particular composition.