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International Patents

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  1. Light-emitting device and display device comprising uniformly distributed light emitting elements, Young Rag Do, Yun Jae Eo, US 12087884 (2024).

  2. Nanorod production method and nanorod produced thereby, Young Rag Do, Yeon Goog Sung, US12074247 (2024).

  3. Light emitting device, display device comprising same, and method for manufacturing display device, Young Rag Do, Byung Ju Lee, 11990568 (2024).

  4. Light-emitting device and display device comprising same, Young Rag Do, Yun Jae Eo, US 11967607 (2024).

  5. Ultra-small LED electrode assembly having improved luminance and method of manufacturing the same, Young Rag Do, Yun Jae Eo, Yeon Goog Sung, US 11869920 (2024).

  6. Full-color light emitting diode display having improved luminance and method of manufacturing the same, Young Rag Do, Yun Jae Eo, Yeon Goog Sung, US 11800768 (2023).

  7. Appraratus for correcting circadian rhythm and method therefof, Young Rag Do, Ji Hye Oh, US 11673001 (2023).

  8. Lighting device for bright therapy and dark therapy, Young Rag Do, Changwook Kim, Yun Jae Eo, US 11660464 (2023).

  9. Nano-scale light-emitting diode (LED) electrode assembly emitting polarized light, method of manufacturing the same, and polarized LED lamp having the same, Young Rag Do, Yeon Goog Sung, US 11,635,176 (2023).

  10. Ultra-small LED electrode assembly, Young Rag Do, Yeon Goog Sung, US 11,552,238 (2023).

  11. Display including nanoscale LED module, Young Rag Do, Yeon Goog Sung, US 11,538,799 (2022).

  12. Nanoscale LED electrode assembly having improved electrical contact and manufacturing method thereof, Yeon Goog Sung, Young Rag Do, US 11,495,585 (2022).

  13. Nanorod production method and nanorod produced thereby, Young Rag Do, Yeon Goog Sung, US 11,450,737 (2022).  

  14. Ultra-small LED electrode assembly and method for preparing same, Young Rag Do, Yeon Goog Sung, US 11,380,670 (2022). 

  15. Circadian rhythm management apparatus and system, Hyun Sun Mo, Young Rag Do et al., US 11,305,091 (2022).

  16. Ultra-small LED electrode assembly having improved luminance and method of manufacturing the same, Young Rag Do, Yun Jae Eo, Yeon Goog Sung, US 11,195,877 (2021).

  17. Nano-scale light-emitting diode (LED) electrode assembly emitting polarized light, method of manufacturing the same, and polarized led lamp having the same, Young Rag Do, Yeon Goog Sung, US 11,112,070 (2021).

  18. Ultra-small LED electrode assembly, Young Rag Do, Yeon Goog Sung, US11,063,194 (2021).

  19. Full-color light emitting diode display having improved luminance and method of manufacturing the same, Young Rag Do, Yun Jae Eo, Yeon Goog Sung, US11,018,195 (2021).

  20. Apparatus for measuring circadian illuminance, Young Rag Do, Ji Hye Oh, US11,009,392 (2021).

  21. Display including nanoscale LED module, Young Rag Do, Yeon Goog Sung, US10,879,223 (2020), CN107134221, (2018).

  22. Thin film solar cell for BIPV and method for manufacturing the same, Young Rag Do, Byoung Koun Min, US10,868,206 (2020).

  23. Nanoscale LED electrode assembly having improved electrical contact and manufacturing method thereof, Yeon Goog Sung, Young Rag Do, US10,867,972 (2020).

  24. Ultra-small LED electrode assembly and method for preparing same, Young Rag Do, Yeon Goog Sung, US10,784,246 (2020).

  25. Nano-scale light-emitting diode (LED) electrode assembly emitting polarized light, method of manufacturing the same, and polarized LED lamp having the same Young Rag Do, Yeon Goog Sung, US10,641,439 (2020).  

  26. Nanorod production method and nanorod produced thereby, Young Rag Do, Yeon Goog Sung, US10,580,859 (2020). 

  27. Nanoscale LED electrode assembly having improved electrical contact and manufacturing method thereof, Yeon Goog Sung, Young Rag Do, US10,497,680 (2019).   

  28. Ultra-small LED electrode assembly having improved luminance and method of manufacturing the same, Young Rag Do, Yun Jae Eo, Yeon Goog Sung, US10,361,246 (2019).   

  29. Full-color light emitting diode display having improved luminance and method of manufacturing the same, Young Rag Do, Yun Jae Eo, Yeon Goog Sung, US10,236,324 (2019). 

  30. Nano-scale light-emitting diode (LED) electrode assembly emitting polarized light, method of manufacturing the same, and polarized LED lamp having the same, Young Rag Do, Yeon Goog Sung, US10,145,518 (2018).

  31. Method of manufacturing nano-scale LED electrode assembly comprising selective metal ohmic layer, Young Rag Do, Yeon Goog Sung, US10,062,804 (2018), CN106711304 (2019).

  32. Solvent for manufacture of self-assembled nano-scale LED electrode assembly and method for manufacturing self-assembled nano-scale LED electrode assembly by the same, Young Rag Do, Yeon Goog Sung, US9,935,241, (2018). 

  33.  LED lamp using ultra-small LED electrode assembly, Young Rag Do, US9,978,725 (2018), CN105431940 (2019).  

  34.  Ultra-small LED electrode assembly and method for manufacturing same, Young Rag Do, US9,773,761 (2017), CN105453284 (2018). 

  35.  Display comprising ultra-small LEDs and method for manufacturing same, Young Rag Do, US9,570,425, (2017), CN105378552 (2018).

  36.  Phosphor-converted single-color LED including a long-wavelength pass filter, Young Rag Do, Yeon Goog Sung, US9,293,668 (2016).

  37.  Subminiature led element and manufacturing method thereof, Young Rag Do, Yeon Goog Sung, US9,112,112 (2015), CN103608937 (2017), EP2704215 (2018).

  38.  Full-color LED display device and manufacturing method thereof, Young Rag Do, Yeon Goog Sung, US9,059,114 (2015).

  39.  Multi-package white LED device, Young Rag Do, Yeon Goog Sung, US9,024,335 (2015).

  40. Black organic light-emitting diode device, Yong-Hee Lee,  Sang-Hwan Cho, Young Rag Do, US8,536,781 (2013), CN 102714281 (2015).  

  41.  Electroluminescent display device provided with a photonic crystal layer incorporating voids in a vacuum state, Jin-Woo Park, Ho-Kyoon Chung, Jang-Hyuk Kwon, Mu-Hyun Kim, Seung-Yong Song, Young Rag Do, Yoon-Chang Kim, Tae-Min Kang, Seong-Taek Lee , US8,013,514 (2011). CN100595931 (2010).

  42.  LED device comprising thin-film phosphor having two dimensional nano periodic structures, Young Rag Do, US7,943,947 (2011).    

  43.  Organic electroluminescent display device having a photonic crystal layer provided over electroluminescent stack, Jin-Woo Park, Ho-Kyoon Chung, Jang-Hyuk Kwon, Mu-Hyun Kim, Seung-Yong Song, Young Rag Do, Yoon-Chang Kim, Tae-Min Kang, Seong-Taek Lee, US7,589,461 (2009), CN100595931 (2011).     

  44.  Ir compound and organic electroluminescent device using the same, Seok-Jong Lee; Seung-Gak Yang, Hee-Yeon Kim, Young-Kook Kim, Seok-Hwan Hwang, Dae-Yup Shin, Young Rag Do, Dong-Hyun Jung; US7,585,573 (2009), CN100543023 (2009).

  45.  Flat panel display, Young-Woo Song, Young-Rag Do, Yoon-Chang Kim, Sang-Hwan Cho, Ji-Hoon Ahn, Joon-gu Lee, So-Young Lee, US7,527,398 (2009), CN100492711 (2009).

  46.  Thin film electroluminescence display device and method of manufacturing the same, Young Rag Do, Yoon-Chang Kim, Ji-Hoon Ahn, Sang-Hwan Cho, Joon-gu Lee, US7,455,563 (2008). CN1535086 (2010).

  47.  Imidazole ring-containing compound and organic electroluminescence display device, Seok-Jong Lee, Young-Kook Kim, Seok-Hwan Hwang, Seung-Gak Yang, Kim; Hee-Yeon Kim, Young Rag Do, Joo-Han Song, US7,351,481 (2008), CN1637000 (2014).

  48.  Rare earth oxide coated phosphors, Wounjhang Park, Kazuhito Yasuda, Brent K. Wagner, Christopher J. Summers, Young Rag Do, Hong Guen Yang, US7,341,779 (2008).

  49.  Phosphor for a plasma display device coated with a continuous thin protective layer and method of manufacture, Young Rag Do, Do-Hyung Park, Yong-Seon Kim, US7,223,482 (2007). 

  50.  Thin film electroluminescence display device and method of manufacturing the same, Young Rag Do, Yoon-Chang Kim, Ji-Hoon Ahn, Sang-Hwan Cho, Joon-gu Lee, US7,176,621 (2007). CN1535086 (2010).

  51. Assembly of organic electroluminescence display device, Sang-Hwan Cho, Young Rag Do, Yoon-Chang Kim, Ji-Hoon Ahn, Joon-gu Lee, US7,084,565 (2006), CN1571595 (2010), EP1471587 (2015), JP4467931 (2010).

  52.  Organic electroluminescent display device and method of manufacturing the same, Young Rag Do, Yoon-Chang Kim, Jin-Woo Park, Young-Woo Song, US6,787,796 (2004). CN100474609 (2009).

  53.  Rare earth oxide coated phosphors and a process for preparing the same, Wounjhang Park, Kazuhito Yasuda, Brent K. Wagner, Christopher J Summers, Young Rag Do, Hong Guen Yang, US6,699,523 (2004).  

  54.  Plate for a plasma display panel (PDP), methode for fabricating the plate, and a PDP having the plate, Young Rag Do, Chang-Won Park, Joon-Bae Lee, Chaun-Gi Choi, US6,674,237 (2005), CN100446160 (2008), GB2375225 (2005), DE10133369B (2011), FR2824421 (2011), JP4064655 (2008).

  55.  Oxide-based quantum cutter method and phosphor system, Wounjhang Park, Christopher J Summers, Young Rag Do, Do-Hyung Park, Hong Guen Yang, US6,669,867 (2003).

  56.  Functional film having optical and electrical properties. Chaun-Gi Choi, Young Rag Do, Joon-Bae Lee, Chang-Won Park, US6,627,322 (2003), CN1246731 (2005), GB2372044 (2005), FR2820511 (2005).

  57.  Functional film having optical and electrical properties, Chaun-Gi Choi, Young Rag Do, Joon-Bae Lee, Chang-Won Park, US6,623,862 (2003), CN1250984 (2006), GB2372042 (2005). 

  58.  Functional film having optical and electrical properties, Chaun-Gi Choi, Young Rag Do, Joon-Bae Lee, Chang-Won Park, US6,579,624 (2003), CN1311286 (2007), GB2372043 (2005), FR2820512 (2005). 

  59.  Smart photolithography, Yong Han, Young Rag Do, Joon-Bae Lee, US6,447,983 (2002). CN1134705 (2004).

  60.  Phosphor screen for a flickerless cathode ray tube and a process for preparing the same, Young Rag Do, Chang-Won Park, Joon-Bae Lee, Won-Ho Yoon, US5,998,918 (1999), TW449766 (2001).

  61.  Phosphor complex having high brightness, Young Rag Do, Joon-Bae Lee, Chang-Won Park, M.R. Song, US5,958,296 (1999), TW469292 (2001), JP3874508 (2007), EP0839889 (2002), DE69712153 (2002).   

  62.  Light shutter projector with a fluorescent screen, Young Rag Do, J.H. Kim, Chang-Won Park, J.W. Bae and Joon-Bae Lee, US5,957,560 (1999). TW338108 (1998).

  63.  LCD having a phosphor layer and a backlight source with a main emitting peak in the region of 380-420nm, Young Rag Do, Y.C. You, J.Y. Jeong and Y.C. You, US5,608,554 (1997), TW296439 (1997), GB2291734 (1998).

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