Oul Cho

This inventor holds 54 USPTO granted patents and 15 published patent applications and 16 EPO patents, primarily in Quantum Dot Technology (CPC class H01L). Top assignees: Samsung Electronics Co., Ltd., Radina Co., Ltd, Samsung Display Co., Ltd.. Active years: 2013-2026.

USPTO Granted Patents = 54 (Patent Applications = 15)

% Patents Active = 96.3

EPO Patents = 16 (Patent Applications = 18)

Average Co-Inventor Count = 5.1

ph-index = 6

Forward Citations = 126(Granted Patents)

Forward Citations (Not Self Cited) = 109(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Seongnam-si, KR (2015 - 2020)
Hwaseong-si, KR (2023)
Suwon-si, KR (2013 - 2024)

Company Filing History:

49 out of 132,107

Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

patents

4. 1 out of 5,587

Samsung Electronics Ltd.

patents

where one patent can have more than one assignee

Years Active: 2013-2026

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Areas of Expertise:

Light Emitting Device

Quantum Dots

Display Device

Electroluminescent Device

Manufacturing Method

Semiconductor Nanocrystal

Backlight Unit

LED Package

Barrier Films

Light Emitting Element

Resistive Memory Device

Light Conversion Device

54 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12628495 - Light emitting device and display device including the same (2026-05-12),

2. 12448563 - Light emitting device and display device including the same (2025-10-21),

3. 12433089 - Light emitting device, method for manufacturing the same, and electronic device including the same (2025-09-30),

4. 12161005 - Light emitting device, method for manufacturing the same, and electronic device including the same (2024-12-03),

5. 11993725 - Barrier films and quantum dot polymer composite articles including the same (2024-05-28),

6. 11981850 - Quantum dots, and an electronic device including the same (2024-05-14),

7. 11963376 - Light emitting device, method of manufacturing same and display device including same (2024-04-16),

8. 11917841 - Light-emitting device comprising organic salt bound to quantum dots and production method thereof (2024-02-27),

9. 11884858 - Semiconductor nanocrystal, light-emitting film, production method of the light-emitting film, light emitting device, and display device (2024-01-30),

10. 11800733 - Light emitting device and display device including the same (2023-10-24),

11. 11793011 - Quantum dot device and display device (2023-10-17),

12. 11784282 - Quantum dot display device (2023-10-10),

13. 11737301 - Electroluminescent device, and display device comprising thereof (2023-08-22),

14. 11710448 - Light emitting element and display device including the same (2023-07-25),

15. 11569469 - Light emitting device and display device including the same (2023-01-31),

Title: Innovations of Oul Cho: A Pioneer in Light Emitting Devices

Introduction: Oul Cho, based in Suwon-si, South Korea, has established himself as a prominent inventor with a remarkable portfolio of 51 patents. His innovative work primarily focuses on light emitting devices and advanced materials, showcasing his contributions to the fields of electronics and materials science.

Latest Patents: Among his recent patents, two stand out due to their cutting-edge technology. The first patent involves a light emitting device, which incorporates a first and a second electrode, with a light emitting layer positioned in between. This invention also includes an electronic auxiliary layer that contains metal oxide nanoparticles and an orthosilicate compound. The second patent introduces barrier films and quantum dot polymer composite articles. It features a substrate with an initial layer made from an oxidation product of polysilazane, topped by a second layer composed of a thiol-ene polymer.

Career Highlights: Oul Cho has worked with prestigious companies such as Samsung Electronics and Radina, where he developed various innovative technologies. His experience in these leading firms has significantly shaped his expertise in patentable inventions.

Collaborations: Throughout his career, Oul has collaborated with notable colleagues, including Eun Joo Jang and Tae Hyung Kim. Their teamwork has contributed to advancements in the science of light emitting devices and related materials, reflecting the synergy of talented professionals in the industry.

Conclusion: Oul Cho's extensive patent portfolio and his collaborations with other experts underscore his influence in the field of innovation. His work not only contributes to the technological landscape but also demonstrates the potential for further advancements in light emitting devices and materials technology.