公开(公告)号：US20240224741A1

公开(公告)日：2024-07-04

申请号：US18386371

申请日：2023-11-02

Applicant: LG Display Co., Ltd.

Inventor： Hyeonhye YU ,  SeHong PARK ,  Wonrae KIM ,  Hyemin PARK ,  Sejong SEONG

IPC: H10K59/80 ,  H10K59/122 ,  H10K59/123 ,  H10K59/35 ,  H10K59/38

CPC classification number: H10K59/878 ,  H10K59/122 ,  H10K59/123 ,  H10K59/351 ,  H10K59/38 ,  H10K59/80518 ,  H10K2102/351

Abstract: A display apparatus is provided, which may improve light extraction efficiency of light emitted from a light emitting element layer. The display apparatus may include a substrate, pixels having a plurality of subpixels, a pattern portion disposed on the substrate and formed to be concave between the plurality of subpixels, and a reflective portion disposed to be inclined on the pattern portion. The plurality of subpixels may include a first layer and a second layer. The first layer may be adjacent to the reflective portion on the substrate and may include a plurality of concave portions. The second layer may be on the first layer. An inclination angle θ of the reflective portion may satisfy






Taper
⁢

Angle
⁢


(
θ
)


=


180
×
log
⁢



0.11
×

T
L
2


+

T
H
2




π


,




wherein TH is a maximum thickness of the second layer in the concave portion, TL is a thickness of the first layer on an extension line of TH, and π is a circular constant.

公开(公告)号：US20230197903A1

公开(公告)日：2023-06-22

申请号：US18060869

申请日：2022-12-01

Applicant: LG Display Co., Ltd.

Inventor： Hyeonhye YU ,  SeHong PARK

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/62

CPC classification number: H01L33/382 ,  H01L27/156 ,  H01L33/62

Abstract: According to an aspect of the present disclosure, a display device includes a substrate including a plurality of sub pixels; a first electrode on the substrate and corresponding to each of the plurality of sub pixels; a bank on the first electrode and including an opening which exposes the first electrode; a partition on the first electrode in the opening; a light emitting layer on the first electrode and the partition; and a second electrode on the light emitting layer, in which the light emitting layer is disposed to have a structure disconnected by the partition in the opening.