JPWO2020231108A5

JPWO2020231108A5 - display panel

Info

Publication number: JPWO2020231108A5
Application number: JP2021566347A
Authority: JP
Publication date: 2023-05-15

Claims

a circuit board containing electrical wiring;
a first LED subunit;
a second LED sub-unit disposed on the first LED sub-unit;
a third LED sub-unit disposed on the second LED sub-unit;
a passivation layer disposed over the third LED unit;
a first connection electrode electrically connected to at least one of the first, second and third LED subunits;
including
wherein said first connecting electrode and said third LED subunit form a first angle of about 80° or less, defined between the top surface of said third LED subunit and the inner surface of said first connecting electrode; panel .

2. The display panel of claim 1, wherein the first angle is greater than about 60[deg.] and less than about 70[deg.].

2. The passivation layer of claim 1, wherein the passivation layer and the third LED subunit form a second angle of less than about 80[deg.] defined between a top surface of the third LED subunit and an inner surface of the passivation layer. display panel .

2. The display panel according to claim 1, wherein said first connection electrode has at least one surface with a curved shape.

the passivation layer has a top surface facing away from the third LED subunit and a side surface intersecting the top surface;
5. The display panel according to claim 4, wherein said first connection electrode is in contact with at least part of each of the top surface and side surface of said passivation layer.

6. The display panel of claim 5, wherein the first connection electrode contacts at least part of the top surface of the first LED subunit.

2. The display panel according to claim 1, wherein said first connection electrode overlaps at least part of each of said first, second and third LED subunits in plan view.

2. The display panel according to claim 1, wherein at least part of said passivation layer is exposed by said first connection electrode.

2. The display panel of claim 1, wherein the passivation layer exposes at least a portion of a side surface of the first LED subunit.

2. The display panel of claim 1, wherein the passivation layer covers sides of the second and third LED subunits.

2. The display panel of claim 1, wherein the passivation layer exposes at least part of the top surface of the first LED subunit.

a second connection electrode electrically connected to the first LED subunit;
a third connection electrode electrically connected to the second LED subunit;
a fourth connection electrode electrically connected to the third LED subunit;
further comprising
the first connection electrode is electrically connected to each of the first, second and third LED subunits;
2. The display panel according to claim 1, wherein each of said first, second, third and fourth connection electrodes has a curved shape.

each of the first, second, third and fourth connection electrodes has a first portion disposed on an upper surface of the passivation layer;
13. The display panel according to claim 12, wherein said passivation layer is not arranged between said first portions of at least one of said first, second, third and fourth connection electrodes.

further comprising a substrate;
the first LED subunit includes a first LED emitting stack;
the second LED subunit includes a second LED emitting stack;
the third LED subunit includes a third LED emitting stack;
2. The display panel according to claim 1, wherein the first, second and third LED light emitting stacks have sequentially smaller regions overlapping the substrate.

15. The display panel of Claim 14, wherein at least one of said light emitting stacks comprises micro LEDs having a surface area of less than about 10,000 square microns.