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For the Inventor, By the Inventor

Gyeonggi-do, South Korea

Youn Gyoung Chang

This inventor holds 46 USPTO granted patents, primarily in Liquid Crystal Displays. Top assignees: Lg Display Co., Ltd., Lg Philips Lcd Co., Inc., Lg.philips Co., Ltd.. Active years: 2001-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Youn Gyoung Chang. Retrieved from https://idiyas.com/inventor/youn-gyoung-chang

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 46

% Patents Active = 76.1

Average Co-Inventor Count = 3.0

ph-index = 9

Forward Citations = 222(Granted Patents)


Location History:

  • Kunpo, KR (2001 - 2005)
  • Kyunggi-do, KR (2001 - 2005)
  • Kyonggi-do, KR (2003 - 2009)
  • Uiwang-si, KR (2007 - 2009)
  • Uiwang-shi, KR (2007 - 2013)
  • Anyang-si, KR (2008 - 2013)
  • Kyounggi-do, KR (2004 - 2014)
  • Gyeonggi-Do, KR (2005 - 2015)

Company Filing History:

goldMedal25 out of 12,768 
 
Lg Display Co., Ltd.
 patents
silverMedal19 out of 2,040 
 
Lg Philips Lcd Co., Inc.
 patents
bronzeMedal1 out of 16 
 
Lg.philips Co., Ltd.
 patents
4. 1 out of 42 
 
Lg.phillips Lcd Co., Ltd.
 patents

Years Active: 2001-2025

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Areas of Expertise:
Electroluminescent Display
Thin Film Transistor
Fabrication Method
Liquid Crystal Display
Display Device
Alignment Key
Printing Method
Translucent Conductive Film
Optical Sensor
Luminance Compensation
Horizontal Electric Field
46 patents (USPTO):Explore Patents
1. 12484379 - Electroluminescent display apparatus (2025-11-25),
2. 9218985 - Roller apparatus, printing method and method of fabricating liquid crystal display device using the same (2015-12-22),
3. 8943965 - Roller apparatus, printing method and method of fabricating liquid crystal display device using the same (2015-02-03),
4. 8830437 - Method of fabricating liquid crystal display of horizontal electronic field applying type (2014-09-09),
5. 8576367 - Liquid crystal display panel device with a transparent conductive film formed pixel electrode and gate pad and data pad on substrate and method of fabricating the same (2013-11-05),
6. 8502944 - Liquid crystal display of horizontal electronic field applying type with storage capacitor covering the gate line and common line and fabricating method thereof (2013-08-06),
7. 8411244 - Liquid crystal display device and fabricating method thereof with a simplified mask process (2013-04-02),
8. 8263442 - Thin film transistor substrate of horizontal electric field type liquid crystal display device and fabricating method thereof (2012-09-11),
9. 8216937 - Method of fabricating display device (2012-07-10),
10. 8077280 - Thin film transistor substrate of horizontal electric field type liquid crystal display device and fabricating method thereof (2011-12-13),
11. 8071984 - Thin film transistor substrate for display device and fabricating method thereof (2011-12-06),
12. 8004098 - Alignment key, method for fabricating the alignment key, and method for fabricating thin film transistor substrate using the alignment key (2011-08-23),
13. 7961284 - Liquid crystal display and method for manufacturing the same (2011-06-14),
14. 7907112 - Liquid crystal display device and luminance difference compensating method thereof (2011-03-15),
15. 7889304 - Liquid crystal display and fabricating method thereof (2011-02-15),

Certainly! Here is the article about inventor Youn Gyoung Chang:

Title: The Innovative Journey of Inventor Youn Gyoung Chang

Introduction:

Youn Gyoung Chang, a visionary inventor based in Gyeonggi-do, South Korea, is a true pioneer in the world of innovation. His relentless dedication to creating a better future through technology makes him a truly inspiring figure in the realm of inventors.

Latest Patents:

Youn Gyoung Chang holds an impressive portfolio of 45 patents, showcasing his expertise and commitment to pushing boundaries in technology. Among his latest patents is a revolutionary roller apparatus, printing method, and method of fabricating liquid crystal display devices. These innovations aim to minimize processes and printing defects, revolutionizing the manufacturing industry.

Career Highlights:

Throughout his illustrious career, Youn Gyoung Chang has made significant contributions to renowned companies such as LG Display Co., Ltd. and LG Philips LCD Co., Inc. His innovative spirit and cutting-edge inventions have paved the way for advancements in the display technology sector, earning him widespread recognition and acclaim.

Collaborations:

Working alongside esteemed colleagues such as Heung Lyul Cho and Soon Sung Yoo, Youn Gyoung Chang has fostered a collaborative environment where creativity and innovation thrive. Together, they have created groundbreaking technologies that have reshaped the industry landscape and set new standards for excellence.

Conclusion:

In conclusion, Youn Gyoung Chang's unwavering passion for innovation and his exceptional talent as an inventor have positioned him as a trailblazer in the world of technology. His remarkable contributions and relentless pursuit of excellence continue to inspire generations of inventors and pave the way for a brighter, more innovative future.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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