US 12,321,060 B1
Color filter enhancements for display devices
Arkady Garbar, Lakeville, MN (US); Derek Harris, Saint Paul, MN (US); and Davis Lee, Seoul (KR)
Assigned to Eyesafe Inc., Eden Prairie, MN (US)
Filed by Eyesafe Inc., Eden Prairie, MN (US)
Filed on Oct. 31, 2024, as Appl. No. 18/933,564.
Application 18/933,564 is a continuation of application No. PCT/US2024/052350, filed on Oct. 22, 2024.
Application 18/933,564 is a continuation of application No. 18/604,326, filed on Mar. 13, 2024.
Application PCT/US2024/052350 is a continuation of application No. 18/604,326, filed on Mar. 13, 2024.
Application 18/604,326 is a continuation in part of application No. 17/876,399, filed on Jul. 28, 2022, abandoned.
Application 17/876,399 is a continuation in part of application No. PCT/US2021/052904, filed on Sep. 30, 2021.
Application 17/876,399 is a continuation in part of application No. 17/348,570, filed on Jun. 15, 2021, granted, now 11,592,701, issued on Feb. 28, 2023.
Application PCT/US2021/052904 is a continuation of application No. 17/348,570, filed on Jun. 15, 2021, granted, now 11,592,701, issued on Feb. 28, 2023.
Application PCT/US2021/052904 is a continuation of application No. 17/177,920, filed on Feb. 17, 2021, granted, now 11,126,033, issued on Sep. 21, 2021.
Application 17/348,570 is a continuation in part of application No. 17/177,920, filed on Feb. 17, 2021, granted, now 11,126,033, issued on Sep. 21, 2021.
Application 17/348,570 is a continuation in part of application No. PCT/US2020/059308, filed on Nov. 6, 2020.
Application 17/177,920 is a continuation in part of application No. PCT/US2020/059308, filed on Nov. 6, 2020.
Application PCT/US2020/059308 is a continuation in part of application No. 16/695,983, filed on Nov. 26, 2019, granted, now 10,955,697, issued on Mar. 23, 2021.
Application 17/177,920 is a continuation in part of application No. 16/695,983, filed on Nov. 26, 2019, granted, now 10,955,697, issued on Mar. 23, 2021.
Claims priority of provisional application 62/772,513, filed on Nov. 28, 2018.
Int. Cl. G02F 1/1335 (2006.01); F21V 8/00 (2006.01); G02B 1/04 (2006.01); G02B 5/00 (2006.01); G02B 5/20 (2006.01); G02B 5/22 (2006.01); G02F 1/13357 (2006.01); H05B 47/11 (2020.01)
CPC G02F 1/133514 (2013.01) [G02B 1/04 (2013.01); G02B 5/003 (2013.01); G02B 5/208 (2013.01); G02B 5/22 (2013.01); G02B 6/0051 (2013.01); G02F 1/133536 (2013.01); G02F 1/133603 (2013.01); H05B 47/11 (2020.01); G02F 1/133607 (2021.01); G02F 1/133614 (2021.01); G02F 2201/086 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A display system comprising:
a backlight unit having a light emitting array;
a liquid crystal panel; and
a color filter having one or more light absorbing materials, wherein
the one or more light absorbing materials are one or more light absorbing dyes,
the one or more light absorbing dyes comprise a soluble, primary light absorbing dye,
the soluble, primary light absorbing dye has only absorption properties and absorbs light in a particular wavelength range,
the color filter is comprised of a plurality of pixels,
each pixel is comprised of red, green, and blue subpixels,
the subpixels are created from a resin and a colorant such that the red subpixels have a red colorant, the green subpixels have a green colorant, and the blue subpixels have a blue colorant,
the colorants are suspended in the resin of the subpixels,
the soluble, primary light absorbing dye is dissolved in the resin of at least one color set of the red, green, and blue subpixels,
the soluble, primary light absorbing dye is a separate compound than the colorants, and
the one or more light absorbing dyes are located within the resin of at least one color set of the red, green, and blue subpixels in the color filter.