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US 11,777,065 B2Granted
White-light-emitting LED structures
AssigneeX Display Company Technology Limited
InventorsMatthew Alexander Meitl, Ronald S. Cok
Life of this patent
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Abstract
A white-light-emitting inorganic light-emitting-diode (iLED) structure comprises first iLEDs electrically connected in series, each first iLED emitting a different color of light from any other first iLED when electrical power is provided to the first iLEDs, and a second iLED electrically connected to one of the first iLEDs, the second iLED emitting the same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs. The second iLED can be electrically connected in series or in parallel with the one of the first iLEDs. Such iLED structures can be used at least in displays, lamps, and indicators.
Claims18
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- a second iLED electrically connected to one of the first iLEDs, the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs,
- wherein the second iLED is electrically connected in series with the one of the first iLEDs,
- wherein the second iLED and the one of the first iLEDs are native to and disposed on a unitary and contiguous common native substrate in a common patterned semiconductor layer comprising common semiconductor materials, wherein the common native substrate comprises a fractured or separated tether, and
- wherein the first iLEDs comprise a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light and the second iLED comprises a red second iLED that emits red light electrically connected in series with the red first iLED.
3 more elements
A color inorganic light-emitting-diode (iLED) display, comprising an array of color pixels, each color pixel comprising color subpixel iLEDs that emit colored light when electrical power is provided to the color subpixel iLEDs and a white subpixel comprising a white-light-emitting iLED structure that emits white light when electrical power is provided to the white subpixel, wherein the white-light-emitting iLED structure comprises:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- a second iLED electrically connected to one of the first iLEDs, the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs.
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- a second iLED electrically connected to one of the first iLEDs, the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs,
- wherein the first iLEDs comprise a red first iLED that emits red light and a cyan first iLED that emits cyan light and the second iLED comprises a red second iLED that emits red light, the red second iLED electrically connected in series with the first iLEDs.
1 more element
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- a second iLED electrically connected to one of the first iLEDs, the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs,
- wherein the first iLEDs comprise a yellow first iLED that emits yellow light and a blue first iLED that emits blue light and the second iLED comprises a yellow second iLED that emits yellow light electrically connected in series with the first iLEDs.
1 more element
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs, wherein the first iLEDs comprise a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light;
- and
- a green second iLED electrically connected in parallel to the green first iLED;
- and
- a red second iLED electrically connected in series to the red first iLED.
2 more elements
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- a second iLED electrically connected to one of the first iLEDs, the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs, wherein the second iLED is electrically connected in series with the one of the first iLEDs,
- wherein the first iLEDs comprise:
- (i) a red first iLED that emits red light and a cyan first iLED that emits cyan light;
- (ii) a blue first iLED that emits blue light and a yellow first iLED that emits yellow light;
- or
- (iii) a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light.
5 more elements
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- a second iLED electrically connected to one of the first iLEDs, the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs,
- wherein the second iLED is electrically connected in series with the one of the first iLEDs, and
- wherein the first iLEDs comprise a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light and the second iLED comprises a red second iLED that emits red light electrically connected in series with the red first iLED.
2 more elements
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- a second iLED electrically connected to one of the first iLEDs, the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs,
- wherein the second iLED is electrically connected in series with the one of the first iLEDs, and
- wherein the first iLEDs comprise a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light and the second iLED comprises a green second iLED that emits green light electrically connected in parallel with the green first iLED.
2 more elements
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- two or more second iLEDs electrically connected to one of the first iLEDs, each of the two or more second iLEDs emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs,
- wherein at least one of the two or more second iLEDs is electrically connected in series with the one of the first iLEDs and the at least one second iLED and the one of the first iLEDs are native to and disposed on a unitary and contiguous common native substrate in a common patterned semiconductor layer comprising common semiconductor materials, wherein the common native substrate comprises a fractured or separated tether, and
- wherein each of the two or more second iLEDs is electrically connected in series or electrically connected in parallel with one of the first iLEDs.
2 more elements
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- a second iLED electrically connected to one of the first iLEDs, the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs,
- wherein the second iLED is electrically connected in series with the one of the first iLEDs,
- wherein the second iLED and the one of the first iLEDs are native to and disposed on a unitary and contiguous common native substrate in a common patterned semiconductor layer comprising common semiconductor materials, wherein the common native substrate comprises a fractured or separated tether, and
- wherein the first iLEDs comprise:
- (i) a red first iLED that emits red light and a cyan first iLED that emits cyan light;
- (ii) a blue first iLED that emits blue light and a yellow first iLED that emits yellow light;
- or
- (iii) a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light.
7 more elements
A white-light-emitting inorganic light-emitting-diode (iLED) structure, comprising:
- first iLEDs electrically connected in series, each of the first iLEDs emitting a different color of light from any other of the first iLEDs when electrical power is provided to the first iLEDs;
- and
- a second iLED electrically connected to one of the first iLEDs, the second iLED emitting a same color of light as the one of the first iLEDs when electrical power is provided to the first iLEDs,
- wherein the second iLED is electrically connected in series with the one of the first iLEDs,
- wherein the second iLED and the one of the first iLEDs are native to and disposed on a unitary and contiguous common native substrate in a common patterned semiconductor layer comprising common semiconductor materials, wherein the common native substrate comprises a fractured or separated tether, and
- wherein the first iLEDs comprise a red first iLED that emits red light, a green first iLED that emits green light, and a blue first iLED that emits blue light and the second iLED comprises a green second iLED that emits green light electrically connected in parallel with the green first iLED.
3 more elements
Dependencies are inferred from the claim text.