Light devices, display devices, backlighting devices, edge-lighting devices, combination backlighting and edge-lighting devices

Patent metadata

Field	Value
Publication number	US-9921428-B2
Application number	US-201113042663-A
Country	US
Kind code	B2
Filing date	Mar 8, 2011
Priority date	Apr 18, 2006
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

In some embodiments, an LCD device comprising (1) liquid crystals, (2) at least one lighting device that emits BSY-1, BSY-2, BSR, BSG-1, BSG-2 and/or BSG-3 light, (3) solid state light emitters (430-480 nm) and luminescent material (555-585 nm, 595-625 nm, or 510-560 nm), and/or (4) a light guide, a reflector and/or a light polarizer. In some embodiments, a light device comprising (1) at least one lighting device that emits BSY-1, BSY-2, BSR, BSG-1, BSG-2 and/or BSG-3 light, (2) a light guide, a reflector and/or a light polarizer, and/or (3) solid state light emitters (430-480 nm) and luminescent material (555-585 nm, 595-625 nm, or 510-560 nm).

First claim

The invention claimed is:

1. An LCD device, comprising:
a plurality of liquid crystals; and
at least one lighting device that emits light that has a color point that is within at least one area on a 1931 CIE Chromaticity Diagram selected from among a first area, a second area, a third area, a fourth area, a fifth area and a sixth area,
the first area enclosed by first, second, third, fourth and fifth line segments, the first line segment connecting a first point to a second point, the second line segment connecting the second point to a third point, the third line segment connecting the third point to a fourth point, the fourth line segment connecting the fourth point to a fifth point, and the fifth line segment connecting the fifth point to the first point, the first point having x, y coordinates of 0.32, 0.40, the second point having x, y coordinates of 0.36, 0.48, the third point having x, y coordinates of 0.43, 0.45, the fourth point having x, y coordinates of 0.42, 0.42, and the fifth point having x, y coordinates of 0.36, 0.38,
the second area enclosed by sixth, seventh, eighth, ninth and tenth line segments, the fifth line segment connecting a fifth point to a sixth point, the seventh line segment connecting the seventh point to an eighth point, the eighth line segment connecting the eighth point to a ninth point, the ninth line segment connecting the ninth point to a tenth point, and the tenth line segment connecting the tenth point to the sixth point, the sixth point having x, y coordinates of 0.29, 0.36, the seventh point having x, y coordinates of 0.32, 0.35, the eighth point having x, y coordinates of 0.41, 0.43, the ninth point having x, y coordinates of 0.44, 0.49, and the tenth point having x, y coordinates of 0.38, 0.53,
the third area enclosed by eleventh, twelfth, thirteenth and fourteenth line segments, the eleventh line segment connecting an eleventh point to a twelfth point, the twelfth line segment connecting the twelfth point to a thirteenth point, the thirteenth line segment connecting the thirteenth point to a fourteenth point, the fourteenth line segment connecting the fourteenth point to the eleventh point, the eleventh point having x, y coordinates of 0.57, 0.35, the twelfth point having x, y coordinates of 0.62, 0.32, the thirteenth point having x, y coordinates of 0.37, 0.16, and the fourteenth point having x, y coordinates of 0.40, 0.23,
the fourth area enclosed by fifteenth, sixteenth, seventeenth, eighteenth and nineteenth line segments, the fifteenth line segment connecting a fifteenth point to a sixteenth point, the sixteenth line segment connecting the sixteenth point to a seventeenth point, the seventeenth line segment connecting the seventeenth point to an eighteenth point, the eighteenth line segment connecting the eighteenth point to a nineteenth point, and the nineteenth line segment connecting the nineteenth point to the fifteenth point, the fifteenth point having x, y coordinates of 0.35, 0.48, the sixteenth point having x, y coordinates of 0.26, 0.50, the seventeenth point having x, y coordinates of 0.13, 0.26, the eighteenth point having x, y coordinates of 0.15, 0.20, and the nineteenth point having x, y coordinates of 0.26, 0.28,
the fifth area enclosed by twentieth, twenty-first, twenty-second and twenty-third line segments, the twentieth line segment connecting a twentieth point to a twenty-first point, the twenty-first line segment connecting the twenty-first point to a twenty-second point, the twenty-second line segment connecting the twenty-second point to a twenty-third point, the twenty-third line segment connecting the twenty-third point to the twentieth point, the twentieth point having x, y coordinates of 0.21, 0.28, the twenty-first point having x, y coordinates of 0.26, 0.28, the twenty-second point having x, y coordinates of 0.32, 0.42, and the twenty-third point having x, y coordinates of 0.28, 0.44,
the sixth area enclosed by twenty-twenty-seventh, twenty-fifth, twenty-sixth and twenty-seventh line segments, the twenty-fourth line segment connecting a twenty-fourth point to a twenty-fifth point, the twenty-fifth line segment connecting the twenty-fifth point to a twenty-sixth point, the twenty-sixth line segment connecting the twenty-sixth point to a twenty-seventh point, the twenty-seventh line segment connecting the twenty-seventh point to the twenty-fourth point, the twenty-fourth point having x, y coordinates of 0.30, 0.49, the twenty-fifth point having x, y coordinates of 0.35, 0.48, the twenty-sixth point having x, y coordinates of 0.32, 0.42, and the twenty-seventh point having x, y coordinates of 0.28, 0.44.

2. An LCD device as recited in claim 1 , wherein the LCD device further comprises at least one solid state light emitter selected from among the group consisting of:
a solid state light emitter which, when illuminated, emits light having a peak wavelength in the range of from about 430 nm to about 480 nm;
a solid state light emitter which, when illuminated, emits light having a dominant wavelength in the range of from about 595 nm to about 625 nm;
a solid state light emitter which, when illuminated, emits light having a dominant wavelength in the range of from about 510 nm to about 560 nm;
a solid state light emitter which, when illuminated, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm;
a solid state light emitter which, when illuminated, emits light having a dominant wavelength in the range of from about 603 nm to about 800 nm;
a solid state light emitter which, when illuminated, emits light that has a color point on a 1931 CIE Chromaticity Diagram that is within said third area;
a solid state light emitter which, when illuminated, emits light having a dominant wavelength in the range of from about −495 nm to about −580 nm, and
a solid state light emitter which, when illuminated, emits light having a dominant wavelength in the range of from about 495 nm to about 580 nm.

3. An LCD device as recited in claim 1 , wherein the LCD device comprises at least a first surface mount solid state light emitter.

4. An LCD device as recited in claim 1 , wherein the LCD device comprises at least a first lateral-emitting solid state light emitter selected from among sidelooker light emitting diodes and side emitter light emitting diodes.

5. An LCD device as recited in claim 4 , wherein the first lateral-emitting solid state light emitter is a sidelooker light emitting diode that emits light that has a color point on a 1931 CIE Chromaticity Diagram that is within at least one of said first area and said second area.

6. An LCD device as recited in claim 1 , wherein:
the LCD device comprises at least a first lateral-emitting solid state light emitter and a second lateral-emitting solid state light emitter,
the first lateral-emitting solid state light emitter is a sidelooker light emitting diode that emits light having a color point on a 1931 CIE Chromaticity Diagram that is within at least one of said first area and said second area, and
the second lateral-emitting solid state light emitter is a sidelooker light emitting diode that emits red light.

7. An LCD device as recited in claim 1 , wherein the LCD device comprises at least one surface mount solid state light emitter and at least one lateral-emitting solid state light emitter selected from among sidelooker light emitting diodes and side emitter light emitting diodes.

8. An LCD device as recited in claim 1 , wherein the LCD device comprises at least one light emitter that emits light that travels directly to another component of the LCD device.

9. An LCD device as recited in claim 1 , wherein the LCD device comprises at least one light emitter selected from among sidelooker

Assignees

• Van De Ven Antony Paul
• Negley Gerald H
• Pyles Shawn
• Cree Inc

Inventors

• Van De Ven Antony Paul
• Negley Gerald H
• Pyles Shawn

Classifications

• G02F1/133609

  including means for improving the color mixing, e.g. white · CPC title

• G02F1/133603 Primary

  with LEDs · CPC title

• G02B6/0078

  Side-by-side arrangements, e.g. for large area displays · CPC title

• G02F2201/52

  RGB geometrical arrangements · CPC title

• G02F2001/133613

  Physics · mapped topic