US 12,382,785 B2
Stretchable display device
Hyun Jae Kim, Seoul (KR); Min Seong Kim, Seoul (KR); Dongwoo Kim, Seoul (KR); Won Kyung Min, Seoul (KR); Dong Hyun Choi, Seoul (KR); and Gwan In Kim, Seoul (KR)
Assigned to UIF (University Industry Foundation), Yonsei University, Seoul (KR)
Filed by UIF (University Industry Foundation), Yonsei University, Seoul (KR)
Filed on Jan. 6, 2022, as Appl. No. 17/569,513.
Claims priority of application No. 10-2021-0006458 (KR), filed on Jan. 18, 2021.
Prior Publication US 2022/0231104 A1, Jul. 21, 2022
Int. Cl. H10K 59/121 (2023.01); H10K 59/131 (2023.01); H10K 77/10 (2023.01)
CPC H10K 59/1213 (2023.02) [H10K 59/131 (2023.02); H10K 77/111 (2023.02)] 18 Claims
OG exemplary drawing
 
16. A stretchable display device, comprising:
a stretchable substrate;
first light emitting pixels spaced apart from each other on the stretchable substrate, each of the first light emitting pixels including a first light emitting element;
deformation switch straps arranged between the first light emitting pixels on the stretchable substrate and having electrical contact points, each of which has conductivity; and
second light emitting pixels arranged between the first light emitting pixels on the stretchable substrate and having pixel contact points, each of which has conductivity, each of the second light emitting pixels including a second light emitting element, and
wherein the deformation switch straps are provided to be deformable such that each of the electrical contact points moves from a first position to a second position,
wherein the first position is a position where each of the electrical contact points is spaced apart from the corresponding pixel contact point,
wherein the second position is a position where each of the electrical contact points is in contact with the corresponding pixel contact point,
wherein the first light emitting pixels are fixed to an upper surface of the stretchable substrate,
wherein each of the deformation switch straps has a dome shape and each of the second light emitting pixels is fixed to an upper surface of a corresponding deformation switch strap,
wherein each of the second light emitting pixels emits light only when the corresponding deformation strap is fully stretched,
wherein both ends of each deformation switch strap are directly fixed to the upper surface of the stretchable substrate.