Display panel and display device including the same

Patent metadata

Field	Value
Publication number	US-12400573-B2
Application number	US-202418794004-A
Country	US
Kind code	B2
Filing date	Aug 5, 2024
Priority date	Oct 19, 2021
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

Provided is a display panel which may include a pixel array including a plurality of pixels connected to scan lines and data lines, a photonic synapse block including a plurality of photonic synapse elements, and a neuron block including a plurality of neuron elements electrically connected to the plurality of photonic synapse elements.

First claim

What is claimed is:

1. A display panel, comprising:
a pixel array including a plurality of pixels connected to scan lines and data lines;
a photonic synapse block including a plurality of photonic synapse elements, electrically connected to the pixel array; and
a neuron block including a plurality of neuron elements, each of the plurality of neuron elements electrically connected to each of the plurality of photonic synapse elements,
wherein the photonic synapse block overlaps the pixel array,
wherein the plurality of photonic synapse elements include a plurality of first photonic synapse elements and a plurality of second photonic synapse elements which receive signals from the plurality of first photonic synapse elements as input signals,
wherein the plurality of first photonic synapse elements sense an image displayed by the pixel array, and
wherein the plurality of second photonic synapse elements perform a neural network operation based on the input signals.

2. The display panel of claim 1 , wherein the photonic synapse block is disposed under the pixel array.

3. The display panel of claim 1 , wherein a photo conductivity of each of the plurality of first photonic synapse elements changes by an image displayed by the pixel array.

4. The display panel of claim 1 , wherein a photo conductivity of each of the plurality of second photonic synapse elements is fixed.

5. The display panel of claim 1 , wherein a number of the plurality of second photonic synapse elements is greater than a number of the plurality of first photonic synapse elements per a unit area of the pixel array.

6. The display panel of claim 1 , wherein the pixel array includes a first pixel array which displays an image and a second pixel array which does not display the image, and
wherein the photonic synapse block overlaps the second pixel array.

7. The display panel of claim 6 , wherein the photonic synapse block is disposed under the second pixel array.

8. The display panel of claim 6 , wherein a photo conductivity of each of the plurality of photonic synapse elements changes by a light emitted by the second pixel array.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Jungyu
• Goh Joon-Chul
• Lee Kanghee

Classifications

• G09G2310/0267

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• G09G2320/045

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• H10D30/6755

  Oxide semiconductors, e.g. zinc oxide, copper aluminium oxide or cadmium stannate · CPC title

• H10D64/689

  having ferroelectric layers · CPC title

• G09G2330/02

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