	US 12,449,690 B2
	Polymer dispersed liquid crystal display with the improved afterimage
Bong Hee Kim, Chungcheongbuk-do (KR); Seunggi Kim, Chungcheongbuk-do (KR); Hyo Jeong Do, Chungcheongbuk-do (KR); and Kyeong-Jin Kim, Chungcheongbuk-do (KR)
Assigned to LIVICON. CO., LTD, Chungcheongbuk-Do (KR)
Filed by LIVICON. CO., LTD, Chungcheongbuk-do (KR)
Filed on Jul. 10, 2024, as Appl. No. 18/768,473.
Claims priority of application No. 10-2023-0104611 (KR), filed on Aug. 10, 2023.
Prior Publication US 2025/0053041 A1, Feb. 13, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/1333 (2006.01); C09K 19/30 (2006.01); C09K 19/54 (2006.01); G02F 1/1334 (2006.01); G02F 1/1343 (2006.01)

CPC G02F 1/1334 (2013.01) [C09K 19/3003 (2013.01); C09K 19/544 (2013.01); G02F 1/134309 (2013.01); G02F 1/13439 (2013.01); C09K 2019/3019 (2013.01)]

9 Claims

1. A polymer dispersed liquid crystal (PDLC) display comprising:

a first electrode;

a second electrode on the first electrode; and

a PDLC layer;

wherein the PDLC layer disposed between the first electrode and the second electrode,

wherein the PDLC layer includes a liquid crystal droplet and a polymer surrounding the liquid crystal droplet,

wherein the liquid crystal droplet has a size in a range of 0.8 to 1.5 μm,

wherein the PDLC layer has a thickness in a range of 15 to 25 μm,

wherein the polymer dispersed liquid crystal display has multiple domains driven individually, and

wherein the liquid crystal droplet further includes a third compound represented by 4-sec-butyl-2,6-di-tert-butylphenol.