Laser cathode ray tube
AssigneeSamsung SDI Co., Ltd.
InventorsOleg Mikhailovich Makienko, Nikolai Grigoryevich Rumyantzen, Jong-Sik Choi
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Abstract
A laser CRT includes a cathode, a modulator having an orifice for forming an electron beam from the electrons emitted by the cathode, and a beam directing unit directing the electron beam formed by the orifice of the modulator to the laser screen of the laser CRT. To reduce the diameter of the electron beam and to thereby improve the resolution of the laser CRT, the laser CRT includes at least one other modulator having an orifice for forming another electron beam from the electrons emitted by the cathode, the beam directing unit being adapted for directing the other electron beam formed by the at least one other modulator to the laser screen.
Claims20
A laser cathode-ray tube having a laser screen, comprising:
- a single cathode emitting electrons;
- a first modulator corresponding to a part of the single cathode and having a first orifice forming a first electron beam from the emitted electrons;
- a second modulator corresponding to another part of the single cathode and having a second orifice forming a second electron beam from the emitted electrons;
- and
- a beam directing unit directing the first and second electron beams to the laser screen.
A laser cathode-ray tube, comprising:
- a laser screen;
- and
- a plurality of modulators each having an orifice for forming an electron beam on the laser screen from a cathode, wherein the plurality of modulators simultaneously or alternately form the electron beams from the cathode.
A laser cathode-ray tube having a laser screen, comprising:
- a cathode emitting electrons;
- and
- a plurality of modulators each having an orifice for forming an electron beam from the electrons emitted by the cathode on the laser screen.
Dependencies are inferred from the claim text.