US 12,001,243 B2
Display device, method of manufacturing window, and method of manufacturing display device
In-Bae Kim, Daejeon (KR); and Jinseock Kim, Seongnam-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Nov. 29, 2021, as Appl. No. 17/536,544.
Claims priority of application No. 10-2021-0041179 (KR), filed on Mar. 30, 2021.
Prior Publication US 2022/0317731 A1, Oct. 6, 2022
Int. Cl. G06F 1/16 (2006.01); C09K 3/14 (2006.01); G09F 9/30 (2006.01); H01L 21/02 (2006.01); H01L 21/302 (2006.01); H01L 21/306 (2006.01); H01L 23/498 (2006.01); H10K 50/84 (2023.01); H10K 59/00 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC G06F 1/1641 (2013.01) [C09K 3/1481 (2013.01); G06F 1/1616 (2013.01); G06F 1/1652 (2013.01); G09F 9/301 (2013.01); H01L 21/02019 (2013.01); H01L 21/302 (2013.01); H01L 21/30604 (2013.01); H01L 23/4985 (2013.01); H10K 50/84 (2023.02); H10K 59/00 (2023.02); H10K 71/00 (2023.02); H10K 77/111 (2023.02); H10K 2102/311 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A method of manufacturing a window, comprising:
providing a source substrate;
forming a first preliminary substrate by etching the source substrate; and
forming a second preliminary substrate by etching a portion of the first preliminary substrate, wherein
the forming of the second preliminary substrate comprises:
forming an etching paste on the portion of the first preliminary substrate;
radiating heat having an uneven temperature gradient to the etching paste by using a lamp; and
forming a first substantially curved surface, a substantially flat surface extending from the first substantially curved surface, and a second substantially curved surface extending from the substantially flat surface by etching the portion of the first preliminary substrate, wherein
the lamp comprises multiple lamps that provide different temperatures from each other to produce the uneven gradient.