Systems and methods for implementing a dual green-blue light-emitting diode with different wavelengths
A dual green-blue light-emitting diode unit may include a first green-blue light-emitting diode and a second green-blue light-emitting diode. The first green-blue light-emitting diode may include a first green diode configured to emit green light at a first green wavelength, a first blue diode configured to emit blue light at a first blue wavelength, and a first conformal coating of red phosphor over the first green diode and the first blue diode. The second green-blue light-emitting diode may include a second green diode configured to emit green light at a second green wavelength different from the first green wavelength, a second blue diode configured to emit blue light at a second blue wavelength different from the first blue wavelength, and a second conformal coating of red phosphor over the second green diode and the second blue diode.
1. A dual green-blue light-emitting diode unit, comprising:
a first green-blue light-emitting diode comprising:
a first green diode configured to emit green light at a first green wavelength;
a first blue diode configured to emit blue light at a first blue wavelength; and
a first conformal coating of red phosphor over the first green diode and the first blue diode; and
a second green-blue light-emitting diode comprising:
a second green diode configured to emit green light at a second green wavelength different from the first green wavelength;
a second blue diode configured to emit blue light at a second blue wavelength different from the first blue wavelength; and
a second conformal coating of red phosphor over the second green diode and the second blue diode.
2. The dual green-blue light-emitting diode unit of claim 1 , wherein:
the first green wavelength is longer than the second green wavelength; and
the first blue wavelength is shorter than the second blue wavelength.
3. The dual green-blue light-emitting diode unit of claim 1 , wherein the dual green-blue light-emitting diode unit is configured such that the first green-blue light-emitting diode and the second green-blue light-emitting diode are selectively enabled and disabled such that:
the first green-blue light-emitting diode is disabled when the second green-blue light-emitting diode is enabled; and
the second green-blue light-emitting diode is disabled when the first green-blue light-emitting diode is enabled.
4. A light-emitting diode backlight, comprising:
a plurality of dual green-blue light-emitting diode units, each of the plurality of dual green-blue light-emitting diode units comprising:
a first green-blue light-emitting diode comprising:
a first green diode configured to emit green light at a first green wavelength;
a first blue diode configured to emit blue light at a first blue wavelength; and
a first conformal coating of red phosphor over the first green diode and the first blue diode; and
a second green-blue light-emitting diode comprising:
a second green diode configured to emit green light at a second green wavelength different from the first green wavelength;
a second blue diode configured to emit blue light at a second blue wavelength different from the first blue wavelength; and
a second conformal coating of red phosphor over the second green diode and the second blue diode.
5. The light-emitting diode backlight of claim 4 , wherein:
the first green wavelength is longer than the second green wavelength; and
the first blue wavelength is shorter than the second blue wavelength.
6. The light-emitting diode backlight of claim 4 , wherein each of the plurality of dual green-blue light-emitting diode units is configured such that the first green-blue light-emitting diode and the second green-blue light-emitting diode are selectively enabled and disabled such that:
the first green-blue light-emitting diode is disabled when the second green-blue light-emitting diode is enabled; and
the second green-blue light-emitting diode is disabled when the first green-blue light-emitting diode is enabled.
7. A system comprising a display device, the display device comprising:
a liquid crystal display; and
a light-emitting diode backlight, comprising:
a plurality of dual green-blue light-emitting diode units, each of the plurality of dual green-blue light-emitting diode units comprising:
a first green-blue light-emitting diode comprising:
a first green diode configured to emit green light at a first green wavelength;
a first blue diode configured to emit blue light at a first blue wavelength; and
a first conformal coating of red phosphor over the first green diode and the first blue diode; and
a second green-blue light-emitting diode comprising:
a second green diode configured to emit green light at a second green wavelength different from the first green wavelength;
a second blue diode configured to emit blue light at a second blue wavelength different from the first blue wavelength; and
a second conformal coating of red phosphor over the second green diode and the second blue diode.
8. The system of claim 7 , wherein:
the first green wavelength is longer than the second green wavelength; and
the first blue wavelength is shorter than the second blue wavelength.
9. The system of claim 7 , further comprising:
a first backlight driver configured to drive the first green-blue light-emitting diodes of the plurality of dual green-blue light-emitting diode units;
a second backlight driver configured to drive the second green-blue light-emitting diodes of the plurality of dual green-blue light-emitting diode units; and
a backlight controller configured to operate in a plurality of modes comprising:
a first mode wherein the backlight controller enables the first backlight driver to illuminate the first green-blue light-emitting diodes of the plurality of dual green-blue light-emitting diode units and disables the second backlight driver; and
a second mode wherein the backlight controller enables the second backlight driver to illuminate the second green-blue light-emitting diodes of the plurality of dual green-blue light-emitting diode units and disables the first backlight driver.
10. The system of claim 7 , wherein:
the system is an information handling system; and
the system further comprises a processor communicatively coupled to the display device.