Shuttered and cycled light emitting diode display and method of producing the same

Claim 1

A method of producing a high resolution, high intensity, full color display that is particularly useful for a flat display, comprising the steps of: sequentially and cyclically lighting a set of one red, one green, and one blue LEDs by lighting the respective LEDs in the set for a predetermined time period for each LED in which one cycle is defined by the sum of the predetermined time periods, and in which one cycle is a time period less than that for which the sequential lighting of the LEDs can be detected by the human eye, the blue LED being formed in silicon carbide and being selected from the group having a peak emission at a wavelength ranging between about 424-428 nanometers, about 455-460 nanometers, about 465-470 nanometers, and about 475-480 nanometers so that a high intensity blue light source is thereby provided; and shuttering the set of LEDs with only a portion of a liquid crystal pixel for at least a portion of the sequential predetermined time periods to thereby emit light from the shuttered portion of the liquid crystal pixel for a selected time period from each of the red, green, and blue LEDs so that the light emitted from the portion of the pixel is a sequential emission of red, green, and blue light, each for a time period less than or up to the predetermined time period so that the emission from the portion of the pixel during each cycle is defined by the amount of time a light pulse from each LED is shuttered and will normally be perceived by a human eye as a blend of the colors emitted by the respective LEDs rather than as a sequential appearance of those colors.

Claim 2

A method of producing a high resolution, high intensity, full color display that is particularly useful for a flat display, comprising the steps of: sequentially and cyclically lighting a set of one red, one green, and one blue LEDs by lighting the respective LEDs in the set for a predetermined time period for each LED in which one cycle is defined by the sum of the predetermined time periods, and in which one cycle is a time period less than that for which the sequential lighting of the LEDs can be detected by the human eye, the blue LED being formed in silicon carbide and being selected from the group having a peak emission at a wavelength ranging between about 424-428 nanometers, about 455-460 nanometers, about 465-470 nanometers, and about 475-480 nanometers so that a high intensity blue light source is thereby provided; and shuttering the set of LEDs with only a portion of a liquid crystal pixel for at least a portion of the sequential predetermined time periods to thereby emit light from the shuttered portion of the liquid crystal pixel for a selected time period from each of the red, green, and blue LEDs so that the light emitted from the portion of the pixel is a sequential emission of red, green, and blue light, each for a time period less than or up to the predetermined time period so that the emission from the portion of the pixel during each cycle is defined by the amount of time a light pulse from each LED is shuttered and will normally be perceived by a human eye as a blend of the colors emitted by the respective LEDs rather than as a sequential appearance of those colors.

Claim 8

A method of producing a high resolution, high intensity, full color display that is particularly useful for a flat display, comprising the steps of: receiving the data to be represented for display during a predetermined time period; sequentially and cyclically lighting a set of red, green, and blue LEDs in response to the received data by lighting the respective LEDs in the set,for a predetermined time period for each color, in which one cycle is defined by the sum of the predetermined time periods, and in which one cycle is a time period less than that for which the sequential lighting of the LEDs can be detected by the human eye, the blue LED being formed of silicon carbide and being selected from the group having a peak emission at a wavelength ranging between about 424-428 nanometers, about 455-460 nanometers, about 465-470 nanometers, and about 475-480 nanometers so that a high intensity blue light source is thereby provided; addressing individually a portion of a liquid crystal pixel a plurality of times during each sequential predetermined time period in response to the received data; synchronizing the addressing of the individual portion of the liquid crystal pixel with the sequentially and cyclically lighting of the set of red, green, and blue LEDs; and shuttering the set of LEDs with only the individual portion of the liquid crystal pixel for at least a portion of the sequential predetermined time periods in response to the received data to thereby emit light from the shuttered portion of the pixel for a selected time period from each of the red, green, and blue LEDs so that the light emitted from the portion of the pixel is a sequential emission of red, green, and blue light, each for a time period less than or up to the predetermined time period so that the emission from the portion of the pixel during each cycle is defined by the amount of time a light pulse from each LED is shuttered and will normally be perceived by a human eye as a blend of the colors emitted by the respective LEDs rather than as a sequential appearance of those colors.

Claim 9

A method of producing a high resolution, high intensity, full color display that is particularly useful for a flat display, comprising the steps of: receiving the data to be represented for display during a predetermined time period; sequentially and cyclically lighting a set of red, green, and blue LEDs in response to the received data by lighting the respective LEDs in the set,for a predetermined time period for each color, in which one cycle is defined by the sum of the predetermined time periods, and in which one cycle is a time period less than that for which the sequential lighting of the LEDs can be detected by the human eye, the blue LED being formed of silicon carbide and being selected from the group having a peak emission at a wavelength ranging between about 424-428 nanometers, about 455-460 nanometers, about 465-470 nanometers, and about 475-480 nanometers so that a high intensity blue light source is thereby provided; addressing individually a portion of a liquid crystal pixel a plurality of times during each sequential predetermined time period in response to the received data; synchronizing the addressing of the individual portion of the liquid crystal pixel with the sequentially and cyclically lighting of the set of red, green, and blue LEDs; and shuttering the set of LEDs with only the individual portion of the liquid crystal pixel for at least a portion of the sequential predetermined time periods in response to the received data to thereby emit light from the shuttered portion of the pixel for a selected time period from each of the red, green, and blue LEDs so that the light emitted from the portion of the pixel is a sequential emission of red, green, and blue light, each for a time period less than or up to the predetermined time period so that the emission from the portion of the pixel during each cycle is defined by the amount of time a light pulse from each LED is shuttered and will normally be perceived by a human eye as a blend of the colors emitted by the respective LEDs rather than as a sequential appearance of those colors.