摘要:
In a color cathode ray tube, a vaccum envelope (1) is provided with a plurality of necks (5-1, ...5-12) and a plurality of funnels (4-1,...4-12) for coupling the respective neck (5-1; ...5-12) to a single panel (3). A plurality of electron gun assemblies (6-1;...6-12) are received in the neck (5-1; ...5-12), respectively and a plurality of deflection yokes (7-1;...7-12) are mounted around the funnels (4-1; ...4-12), respectively. A screen (2) is formed on the inner surface of the faceplate (3-1) of the panel (3) and is defined by a plurality of continuous segment regions (16-1; ...16-12) each of which is scanned with electron beams from the corresponding electron gun assembly (6-1; ...6-12) and deflected by corresponding deflection yoke (7-1; ...7-12). A shadow mask (8) is received in the panel (3) and is faced to the screen (2). The shadow mask (8) has a plurality of effective row and clumn regions (18-1; ...18-12) corresponding to the segment regions (16-1; ...16-12) and a noneffective region (7A, 7B) for surrounding and partitioning the respective segment regions (16-1;...16-12).
摘要:
According to the present invention, a resistor (2l) is provided which comprises an insulation substrate (27), a resistive layer (29) prepared from inorganic materials and printed on the insulation substrate (27), and an insulation layer (30) prepared from borosilicate lead glass and over-coated on the resistive layer (29). The insulation layer (30) contains an oxide of at least one transition metal selected from the group consisting of iron, nickel, chromium, cobalt, zinc, copper, zirconium, and cadmium. In the course of operation, the resistor (2l) of the present invention exhibits no changes in its resistance, irrespective of the length of time it may be operated.
摘要:
In a color cathode ray tube, a panel (3) having a single faceplate (3-1) is coupled to a plurality of necks (5-1 to 5-12) through a plurality of funnels (4-1 to 4-12), respectively. A plurality of electron gun assemblies (6-1 to 6-12) are received in necks (5-1 to 5-12) and a plurality of deflection units (7-1 to 7-12) are mounted around the funnels (4-1 to 4-12), respectively. A screen (2) is formed on an inner surface of faceplate (3-1) and has a plurality of continuous segment regions (16-1 to 16-12) each of which is scanned with the electron beams emitted from the corresponding electron gun assembly (6-1 to 6-12) and deflected by the corresponding deflection unit (7-1 to 7-12). A shadow-mask (10) is so supported in the panel (3) as to face the faceplate (3-1). The electron gun assemblies (6-1 to 6-12) adjacent each other so arranged as to have a relative distance GS between the central axis thereof: where SG is a relative distance on the deflection plane, between the electron beams emitted from each of said electron gun assembly, d is a distance between predetermined effective apertures of the shadow mask through which the predetermined electron beams pass, the predetermined electron beams landing on endmost adjacent effective phosphor elements in each two adjacent ones of said segment regions, and m and n are integers, respectively.
摘要:
A method of making mask structure including two or more masks for a mask-focusing colour picture tube and the mask structure formed by the method. A plurality of apertured flat masks, each mask comprising an effective portion having apertures and a border surrounding the effective portion are stacked with the apertures aligned, then filling material is poured into the apertures. The filling material is solidified thereby fixing the flat masks together. The fixed masks are pressed into a predetermined curved shape. Then, the filling material is removed from the apertures and the masks are separated.
摘要:
According to the present invention, a resistor (2l) is provided which comprises an insulation substrate (27), a resistive layer (29) prepared from inorganic materials and printed on the insulation substrate (27), and an insulation layer (30) prepared from borosilicate lead glass and over-coated on the resistive layer (29). The insulation layer (30) contains an oxide of at least one transition metal selected from the group consisting of iron, nickel, chromium, cobalt, zinc, copper, zirconium, and cadmium. In the course of operation, the resistor (2l) of the present invention exhibits no changes in its resistance, irrespective of the length of time it may be operated.