US 11,659,732 B2
Display device and fabrication method thereof
Su Jung Huh, Yongin-si (KR); Soo Min Baek, Yongin-si (KR); Ji Won Lee, Yongin-si (KR); and Ju Hwa Ha, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jun. 24, 2021, as Appl. No. 17/357,815.
Application 17/357,815 is a division of application No. 16/544,208, filed on Aug. 19, 2019, granted, now 11,069,880.
Claims priority of application No. 10-2018-0122784 (KR), filed on Oct. 15, 2018.
Prior Publication US 2021/0320280 A1, Oct. 14, 2021
Int. Cl. H01L 51/52 (2006.01); G02F 1/1337 (2006.01); G02F 1/1334 (2006.01); H01L 51/56 (2006.01); H01L 27/32 (2006.01); G02F 1/1343 (2006.01); G06F 1/16 (2006.01)
CPC H01L 51/5275 (2013.01) [G02F 1/1334 (2013.01); G02F 1/1337 (2013.01); G02F 1/13439 (2013.01); G06F 1/163 (2013.01); H01L 27/3232 (2013.01); H01L 27/3244 (2013.01); H01L 51/5253 (2013.01); H01L 51/56 (2013.01); G02F 1/13345 (2021.01); H01L 2227/323 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for fabricating a display device, comprising:
forming a display configured to emit light for displaying an image; and
forming a microlens array including a refractive index conversion layer, in which a refractive index varies from region to region, on the display,
wherein forming the microlens array comprises:
forming a lower electrode, made of a transparent conductive material, on the display;
coating the lower electrode with a mixture layer in which UV-curable monomers and liquid crystal molecules are mixed;
forming an upper electrode, made of a same material as the lower electrode, on the mixture layer; and
arranging a mask on the upper electrode and radiating ultraviolet light to the mixture layer, thereby forming the refractive index conversion layer including a polymer network, crosslinked by the ultraviolet light, and the liquid crystal molecules interacting with the polymer network.