US 12,253,767 B2
Method for manufacturing PDLC membrane electrode, negative pressure platform and PDLC membrane
Yung-Lung Wu, Jiangsu (CN); Pin-Hung Lee, Jiangsu (CN); and Rui Sun, Jiangsu (CN)
Assigned to SHANGHAI LONGSHENG PHOTOELECTRIC NEW MATERIAL CO., LTD., Shanghai (CN)
Appl. No. 17/766,700
Filed by SHANGHAI LONGSHENG PHOTOELECTRIC NEW MATERIAL CO., LTD., Shanghai (CN)
PCT Filed Feb. 4, 2021, PCT No. PCT/CN2021/075325
§ 371(c)(1), (2) Date Apr. 5, 2022,
PCT Pub. No. WO2022/126847, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 202011470771.9 (CN), filed on Dec. 14, 2020.
Prior Publication US 2023/0194936 A1, Jun. 22, 2023
Int. Cl. G02F 1/1343 (2006.01); B23K 26/50 (2014.01); G02F 1/1334 (2006.01)
CPC G02F 1/13439 (2013.01) [B23K 26/50 (2015.10); G02F 1/1334 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for manufacturing a PDLC membrane electrode, comprising following steps:
placing a PDLC membrane on a negative pressure platform with a side to be processed facing upwards, and making a liquid crystal activation area of the side to be processed of the PDLC membrane coincide with a transparent area of the negative pressure platform, and other area coincide with a metal material area of the negative pressure platform;
activating a liquid crystal layer of the PDLC membrane; and
cutting and tearing off, according to a half-cut area, a PET layer and an electric conduction layer located on the liquid crystal layer, and sweeping off an activated liquid crystal layer to expose an electric conduction layer located under the liquid crystal layer to form a corresponding electrode;
the method for manufacturing a PDLC membrane electrode further comprising a front side processing step and a back side processing step, wherein
the PDLC membrane is placed on the negative pressure platform with a front side facing upwards, and a front side liquid crystal activation area of the PDLC membrane is made to coincide with a first transparent area of the negative pressure platform, and other area coincides with the metal material area of the negative pressure platform; the liquid crystal layer of the PDLC membrane is activated; according to a front side half-cut area, a first PET layer and a first electric conduction layer located on the liquid crystal layer are cut and torn off, and the activated liquid crystal layer is swept off to expose a second electric conduction layer to form a first electrode; and
the PDLC membrane is placed on the negative pressure platform with a back side facing upwards, and a back side liquid crystal activation area of the PDLC membrane is made to coincide with a second transparent area of the negative pressure platform and other area coincides with the metal material area of the negative pressure platform; the liquid crystal layer of the PDLC membrane is activated; according to a back side half-cut area, a second PET layer and the second electric conduction layer located on the liquid crystal layer are cut and torn off, and the activated liquid crystal layer is swept off to expose the first electric conduction layer to form a second electrode;
wherein in an activation step, an infrared laser is used for performing activation.