US 11,812,565 B2
Display apparatus
Takahiro Seki, Tokyo (JP)
Assigned to JOLED INC., Tokyo (JP)
Filed by JOLED INC., Tokyo (JP)
Filed on Jan. 5, 2022, as Appl. No. 17/647,148.
Claims priority of application No. 2021-002600 (JP), filed on Jan. 12, 2021.
Prior Publication US 2022/0225519 A1, Jul. 14, 2022
Int. Cl. H05K 5/02 (2006.01); H05K 5/00 (2006.01); G06F 1/16 (2006.01)
CPC H05K 5/0217 (2013.01) [G06F 1/1652 (2013.01); H05K 5/0017 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a display panel that has flexibility;
a drive board that drives the display panel;
a flexible board that connects the display panel and the drive board and that has flexibility;
a core to which the drive board is fixed, the core being configured to roll up the display panel and the flexible board; and
a connection member including a plate-shaped member layered on the display panel, the plate-shaped member connecting the display panel and the core, the plate-shaped member being rolled up around the core along with the display panel and the flexible board, wherein
the plate-shaped member includes a first part overlapping the display panel and curved in a state in which the display panel is rolled up around the core and a second part overlapping the flexible board and curved in a state in which the flexible board is rolled up around the core,
in a roll-up direction of the plate-shaped member, an elongation rate of the second part is smaller than an elongation rate of the first part,
the connection member includes a plurality of first through holes provided in a staggered pattern in the first part and a plurality of second through holes provided in a staggered pattern in the second part, and (L1/S1)>(L2/S2) is satisfied where L1 represents a dimension of each of the plurality of first through holes in an orthogonal direction orthogonal to a thickness direction of the plate-shaped member and orthogonal to the roll-up direction, S1 represents a dimension between two first through holes adjacent to each other in the orthogonal direction among the plurality of first through holes, L2 represents a dimension of each of the plurality of second through holes in the orthogonal direction, and S2 represents a dimension between two second through holes adjacent to each other in the orthogonal direction among the plurality of second through holes,
the first part includes a plurality of third parts provided with the plurality of first through holes and a plurality of fourth parts not provided with the plurality of first through holes, the third parts and the fourth parts are alternately arranged in the roll-up direction, and
A<B is satisfied where A represents a dimension of each of the third parts in the roll-up direction and B represents a dimension of each of the fourth parts in the roll-up direction.