US 12,306,380 B2
Electronic apparatus
Jeoungsub Lee, Seoul (KR); Heonjung Shin, Hwaseong-si (KR); Hyun Joon Oh, Seongnam-si (KR); and Daeho Yoon, Hanam-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jun. 1, 2023, as Appl. No. 18/327,632.
Application 18/327,632 is a continuation of application No. 16/851,392, filed on Apr. 17, 2020, granted, now 11,709,293.
Claims priority of application No. 10-2019-0054399 (KR), filed on May 9, 2019.
Prior Publication US 2023/0305193 A1, Sep. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 1/14 (2015.01); B32B 7/02 (2019.01); C08J 5/18 (2006.01); C08J 7/04 (2020.01); C09J 7/38 (2018.01); G02B 1/04 (2006.01); G02F 1/1333 (2006.01); G06F 1/16 (2006.01); G06F 3/044 (2006.01); G09F 9/30 (2006.01); H04M 1/02 (2006.01)
CPC G02B 1/14 (2015.01) [B32B 7/02 (2013.01); C08J 5/18 (2013.01); C08J 7/04 (2013.01); C09J 7/38 (2018.01); G02B 1/04 (2013.01); G02F 1/13338 (2013.01); G06F 1/1652 (2013.01); G06F 3/044 (2013.01); G09F 9/301 (2013.01); H04M 1/0268 (2013.01); C09J 2203/00 (2013.01); G02F 2201/50 (2013.01); G06F 2203/04102 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic apparatus comprising:
a display panel which provides an image and is foldable with respect to a folding axis;
a first cover layer which is foldable together with the display panel with respect to the folding axis and disposed on the display panel;
a second cover layer which is foldable together with the display panel with respect to the folding axis and disposed below the display panel;
a plurality of functional layers between the display panel and the first cover layer, the plurality of functional layers foldable together with the each other and with the first cover layer and the display panel;
the plurality of functional layers comprising:
a first functional layer which includes any one of polyurethane, silicone, polyether block amide, and copolyester elastomers, and
a second functional layer which is disposed farther from the first cover layer than the first functional layer; and
adhesive layers which respectively couple the first cover layer to the first functional layer, the second functional layer to the first functional layer, the second functional layer to the display panel and the display panel to the second cover layer,
wherein
the second functional layer which is disposed farther from the first cover layer than the first functional layer, has a thickness in a range from 30 micrometers to 50 micrometers together with a modulus in a range from 3 gigapascals 8 gigapascals, and
the first functional layer has a thickness equal to or greater than the thickness of the second functional layer together with having a modulus less than that of the se and functional layer.