Patent ID: 8344610

Claim:
A display device, comprising a display screen that includes a fluorescent layer that absorbs an excitation light at a single excitation wavelength and emits visible light, the fluorescent layer comprising: a plurality of parallel fluorescent stripes elongated along a first direction and spaced from one another along a second direction perpendicular to the first direction, wherein at least three adjacent fluorescent stripes are made of three different fluorescent materials: a first fluorescent material that absorbs the excitation light and emits light of a first color, a second fluorescent material that absorbs the excitation light and emits light of a second color, and a third fluorescent material that absorbs the excitation light and emits light of a third color; a plurality of diode lasers that respond to respective laser current control signals to produce modulated laser excitation beams of the excitation light at the single excitation wavelength, one modulated laser excitation beam from each diode laser per one laser current control signal carrying images of different colors in the respective laser current control signal; a controller that generates the laser current control signals that respectively carry images and are applied to the diode lasers; a beam scanning mechanism that receives the modulated laser beams at the single excitation wavelength and scans, simultaneously and along the second direction, the modulated laser excitation beams on to the display screen at different and adjacent screen positions along the first direction in one screen segment of the display screen, to produce different scan lines along the second direction, respectively, in the screen segment, to cause fluorescent layer of the display screen to emit light of the first, second and third colors at different times at different positions in each scan line along the second direction produced by each modulated laser excitation beam and, to shift, simultaneously, the modulated laser excitation beams to other screen segments at different positions in the display screen along the first direction, one screen segment at a time, to render the images; and a relay optics module placed in optical paths of the modulated laser beams between the diode lasers and the beam scanning mechanism to modify and direct the modulated laser beams in a way to be scanned along the first and second directions onto the display screen by the beam scanning mechanism, wherein one of the different fluorescent materials in the fluorescent stripes includes an Oxide-based phosphor, a Silicate-based phosphor, a Phosphate-based phosphor, a Borate-based phosphor, an Aluminate-based phosphor, a Gallate-based phosphor, a Molybdate-based phosphor, a Tungstate-based phosphor, a Fluoride-based phosphor, a Sulfide-based phosphor, and a Sulfoselenide-based phosphor.