US 12,635,569 B2Granted

Light emitting panel useful for display device with photoelectric conversion unit between two adjacent first projections

AssigneeXiamen Tianma Display Technology Co., Ltd.

InventorRan Chen

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Abstract

Provided are a light-emitting panel and a display device. The light-emitting panel includes a driving substrate and a plurality of light-emitting elements. The driving substrate includes a base substrate, a plurality of driver circuits, and a plurality of photoelectric conversion units. The driver circuits and the photoelectric conversion units are located on the base substrate. A photoelectric conversion unit includes a first doped region and a second doped region. The light-emitting elements are located on a side of the driving substrate. The orthographic projection of a light-emitting element among at least part of the light-emitting elements on the driving substrate is a first projection. An orthographic projection of the photoelectric conversion unit on the driving substrate is located between two adjacent first projections. A driver circuit and the photoelectric conversion unit are each electrically connected to the light-emitting element.

Claims17

Dependent claims

A light-emitting panel, comprising:

a driving substrate, wherein the driving substrate comprises a base substrate, a plurality of driver circuits, and a plurality of photoelectric conversion units, the plurality of driver circuits and the plurality of photoelectric conversion units are located on the base substrate, and a photoelectric conversion unit of the plurality of photoelectric conversion units comprises a first doped region and a second doped region;
and
a plurality of light-emitting elements located on a side of the driving substrate, wherein an orthographic projection of a light-emitting element among at least part of the plurality of light-emitting elements on the driving substrate is a first projection, an orthographic projection of the photoelectric conversion unit on the driving substrate is located between two adjacent first projections, and a driver circuit of the plurality of driver circuits and the photoelectric conversion unit are each electrically connected to the light-emitting element;
wherein the driving substrate further comprises:
a first conductive layer located between the base substrate and the photoelectric conversion unit, wherein the first conductive layer comprises a plurality of first back electrodes and a plurality of second back electrodes, the first doped region is electrically connected to a first back electrode of the plurality of first back electrodes, and the second doped region is electrically connected to a second back electrode of the plurality of second back electrodes;
and
the first doped region is electrically connected to a second pole of the light-emitting element through the first back electrode, and the second doped region is electrically connected to a first pole of the light-emitting element through the second back electrode;
wherein the driving substrate further comprises:
a plurality of first bonding electrodes and a plurality of second bonding electrodes, wherein the plurality of first bonding electrodes and the plurality of second bonding electrodes are located on a side of the driver circuit facing the light-emitting element, wherein
a first bonding electrode of the plurality of first bonding electrodes is electrically connected to the first pole of the light-emitting element, a second bonding electrode of the plurality of second bonding electrodes is electrically connected to the second pole of the light-emitting element, the first back electrode is electrically connected to the second bonding electrode, the second back electrode is electrically connected to the first bonding electrode, and the driver circuit is electrically connected to at least one of the first bonding electrode or the second bonding electrode.

7 more elements

A light-emitting panel, comprising:

a driving substrate, wherein the driving substrate comprises a base substrate, a plurality of driver circuits, and a plurality of photoelectric conversion units, the plurality of driver circuits and the plurality of photoelectric conversion units are located on the base substrate, and a photoelectric conversion unit of the plurality of photoelectric conversion units comprises a first doped region and a second doped region;
a plurality of light-emitting elements located on a side of the driving substrate, wherein an orthographic projection of a light-emitting element among at least part of the plurality of light-emitting elements on the driving substrate is a first projection, an orthographic projection of the photoelectric conversion unit on the driving substrate is located between two adjacent first projections, and a driver circuit of the plurality of driver circuits and the photoelectric conversion unit are each electrically connected to the light-emitting element;
and
a plurality of light-shielding structures and color conversion structures, wherein the plurality of light-shielding structures are located on a side of the light-emitting element facing away from the driving substrate, and a color conversion structure of the color conversion structures is located between two adjacent light-shielding structures of the plurality of light-shielding structures, wherein
in a thickness direction of the light-emitting panel, the color conversion structure overlaps the light-emitting element, and a light-shielding structure of the plurality of light-shielding structures overlaps the photoelectric conversion unit;
wherein the light-shielding structure comprises a first light-shielding portion and a second light-shielding portion that are connected to each other, and the second light-shielding portion is located on a side of the first light-shielding portion facing the light-emitting element;
in the thickness direction of the light-emitting panel, the first light-shielding portion overlaps the photoelectric conversion unit;
and
in the thickness direction of the light-emitting panel, the second light-shielding portion is located between the photoelectric conversion unit and the color conversion structure;
and in a first direction, the second light-shielding portion is located between the photoelectric conversion unit and the color conversion structure.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/902,212Filed 2 Sep 2022
Priority: CN 202210772707.930 Jun 2022
Published: US 2022/0415872 A129 Dec 2022
Granted: 19 May 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification27 codes

H10W 90/00
Package configurations
G09G 3/3233
Using an active matrix: with pixel circuitry controlling the current through the light-emitting element
H10F 19/50
Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic…
H10F 55/00
Radiation-sensitive semiconductor devices covered by groups h10f10/00, h10f19/00 or h10f30/00 being structurally