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OLEDON develops vertical plane source deposition technology for large OLED TV manufacturing

Hwang Chang-Hoon, CEO of OLEDON, which has developed plane-source deposition technology for small & medium-sized OLED and large area OLED, said that it is under development of vertical plane source deposition technology capable of manufacturing ultra-large OLED TVs of 77 inches or larger. Hwang introduced the related technology that it is possible to mass produce OLED TVs of 77 inches or more without the sagging problem of large substrate such as 12th generation (3300 x 4000 mm) substrate when using vertical plane source deposition technology.

According to Hwang, the production yield for 75 inch TVs or larger with the conventional inline type evaporator might be very low due to severe sagging of the substrate and difficult control of many linear sources. To solve this problem, Hwang said that a new 12-generation large-area cluster-type deposition technology is needed, and that vertical plane source deposition technology will be an appropriate alternative.

On the other hand, OLEDON holds the original patents for plane source deposition technology. It also filed a patent related to the curved plane source FMM deposition for high-resolution AMOLED manufacturing, and a patent related to the vertical plane source deposition technology for manufacturing large-area OLED TV.

[IMID 2018] OLEDON, developed โ€˜curved plane source FMM deposition technologyโ€™ for 2250ppi AMOLED for the first time in the world

OLEDON is a company which develops plane source deposition technology for high resolution AMOLED manufacturing. Hwang Chang-Hoon, CEO ofย  OLEDON announced in IMID 2018 that it developed โ€˜curved plane source FMM deposition technologyโ€™ that can be adopted to 2250ppi AMOLED pixels, for the first time in the world.

Conventional linear source FMM deposition technology has a shadow distance of 3um. The available production range is 570ppi AMOLED resolution. On the other hand, the plane source deposition technology already demonstrated in OLEDON can achieve a resolution of 800 to 1200 ppi of AMOLED with a shadow distance of 0.8 to 1.5 ฮผm. Meanwhile, the newly developed โ€˜curved plane source FMM deposition technologyโ€™ is an upgraded technology of the plane source deposition technology which can realize the maximum resolution of AMOLED to 2250ppi with a shadow distance of 0.18 ~ 0.6ฮผm.

The principle is that light is gathered through a concave mirror, a curved surface is applied to the conventional flat plane source, and the light emitting material does not spread, but is precisely deposited at a desired position, thereby reducing the shadow distance.

If this technology is commercialized, it is expected that it can be widely applied not only to mobile devices but also to virtual reality devices.

[IMID 2018] OLEDON, 2250ppi AMOLED ์ œ์กฐ์šฉ ๊ณก๋ฉด์†Œ์Šค FMM ์ฆ์ฐฉ๊ธฐ์ˆ  ์„ธ๊ณ„์ตœ์ดˆ๋กœ ๊ฐœ๋ฐœ

๊ณ ํ•ด์ƒ๋„ AMOLED ์ œ์กฐ์šฉ ๋ฉด์†Œ์Šค ์ฆ์ฐฉ๊ธฐ์ˆ ์„ ๊ฐœ๋ฐœํ•˜๊ณ  ์žˆ๋Š” OLEDON์˜ ํ™ฉ์ฐฝํ›ˆ ๋Œ€ํ‘œ๋Š” 2250ppi์˜ AMOLED ํ™”์†Œ์˜ ์ฆ์ฐฉ์ด ๊ฐ€๋Šฅํ•œ ๊ณก๋ฉด ์†Œ์Šค FMM ์ฆ์ฐฉ๊ธฐ์ˆ ์„ ์„ธ๊ณ„ ์ตœ์ดˆ๋กœ ๊ฐœ๋ฐœํ•˜์˜€๋‹ค๊ณ  IMID 2018์—์„œ ๋ฐœํ‘œํ–ˆ๋‹ค.

๊ธฐ์กด์˜ ๋ฆฌ๋‹ˆ์–ด ์†Œ์Šค FMM ์ฆ์ฐฉ๊ธฐ์ˆ ์€ ์„€๋„์šฐ๊ฑฐ๋ฆฌ๊ฐ€ 3 um์œผ๋กœ์„œ ์ƒ์‚ฐ ๊ฐ€๋Šฅํ•œ AMOLED์˜ ํ•ด์ƒ๋„๋Š” 570ppi ์ˆ˜์ค€์ด๋‹ค. ๋ฐ˜๋ฉด, OLEDON์—์„œ ์ด๋ฏธ ์„ ๋ณด์ธ ๋ฐ” ์žˆ๋Š” ๋ฉด์†Œ์Šค ์ฆ์ฐฉ๊ธฐ์ˆ ์€ ์„€๋„์šฐ๊ฑฐ๋ฆฌ๊ฐ€ 0.8~1.5 um ์œผ๋กœ์„œ AMOLED์˜ ํ•ด์ƒ๋„๋ฅผ 800~1200ppi๊นŒ์ง€ ๊ตฌํ˜„ํ•  ์ˆ˜ ์žˆ๋‹ค. ํ•œํŽธ, ์ด๋ฒˆ์— ์ƒˆ๋กœ ๊ฐœ๋ฐœ๋œ ๊ณก๋ฉด์†Œ์Šค FMM ์ฆ์ฐฉ๊ธฐ์ˆ ์€ ์„€๋„์šฐ๊ฑฐ๋ฆฌ๊ฐ€ 0.18~0.6 um๋กœ์„œ AMOLED์˜ ์ตœ๋Œ€ ํ•ด์ƒ๋„๋ฅผ 2250ppi๊นŒ์ง€ ๊ตฌํ˜„ ๊ฐ€๋Šฅํ•œ ๋ฉด์†Œ์Šค ์ฆ์ฐฉ๊ธฐ์ˆ ์˜ ์—…๊ทธ๋ ˆ์ด๋“œ ๊ธฐ์ˆ ์ด๋‹ค. ย 

์›๋ฆฌ๋Š” ์˜ค๋ชฉ๊ฑฐ์šธ์„ ํ†ตํ•ด ๋น›์„ ๋ชจ์œผ๋Š” ๊ฒƒ์ฒ˜๋Ÿผ, ๊ธฐ์กด์˜ ํ‰ํ‰ํ•œ ๋ฉด ์†Œ์Šค์— ๊ณก๋ฉด์„ ๊ฐ€ํ•ด ๋ฐœ๊ด‘์žฌ๋ฃŒ๊ฐ€ ํผ์ง€์ง€ ์•Š๊ณ  ์›ํ•˜๋Š” ๊ณณ์— ์ •ํ™•ํžˆ ์ฆ์ฐฉ ๋˜์–ด ์„€๋„์šฐ ๊ฑฐ๋ฆฌ๋ฅผ ์ค„์ผ ์ˆ˜ ์žˆ๋Š” ๋ฐฉ์‹์ด๋‹ค.

์ด ๊ธฐ์ˆ ์ด ์ƒ์šฉํ™” ๋œ๋‹ค๋ฉด mobile ๊ธฐ๊ธฐ ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ ๊ฐ€์ƒํ˜„์‹ค ๊ธฐ๊ธฐ ๋“ฑ ํญ๋„“๊ฒŒ ์ ์šฉ๋  ์ˆ˜ ์žˆ์„ ๊ฒƒ์œผ๋กœ ๊ธฐ๋Œ€๋ฅผ ๋ชจ์œผ๊ณ  ์žˆ๋‹ค.

 

 

[SID 2018] OLEDON, presented about X-mixing plane source deposition technology for AMOLED efficiency enhancement.

In SID 2018, Hwang Chang-Hoon, CEO of OLEDON, announced a new plane source FMM deposition technology that can produce ultra-high resolution AMOLED of 2,250 ppi.

According to the announcement, the linear source currently applied to mass production has a problem of causing superimposition of fine adjacent patterns in a high resolution implementation due to a shadow distance of 3 ฮผm. But Hwang said he succeeded in reducing the shadow distance of the patterns by 0.18 um using plane source, which is the smallest shadow distance ever introduced.

<Shadow effect comparison between current process and the process applied with the plane source, Source: OLEDON>

Hwang added that he developed ‘X-mixing’ technology in which the host and dopant thin films were separately deposited on the metal surface and then the host molecules and dopant molecules were automatically diffused through the plane evaporation to form the light emitting layer. Hwang commented, “It is not easy to control the composition of the dopant by using the linear source evaporation technology, which vaporizes the host material and the dopant material at the same time. However, since X-mixing technology can control the composition, it is possible to achieve a material utilization rate up to 4 times higher than the conventional method.”

<SIMS data comparison between the emitting layer deposited by conventional method and the emitting layer deposited by the plane source, Source: OLEDON>

<Dopant gradient data of the emitting layer applied with X-mixing technology, Source: OLEDON>

Hwang said, “In case of green OLED produced by X-mixing technology, 40% improvement in the emitting efficiency was verified, compared to the existing technology. OLEDON is currently under development of the optimized X- mixing development for forming exciton and the mask aligner with new concept sub-micron precision.

<Luminance data for green OLED produced by X-mixing technology and green OLED produced by the conventional method, Source: OLEDON>

Finally, Mr. Hwang mentioned that based on the development results, he plans to install a plane source FMM evaporator capable of manufacturing ultra-high resolution micro OLED devices in Dankook University.ย  (Reference: OLEDON homepage: www.oledon.co.kr)

[SID 2018] OLEDON, AMOLED ํšจ์œจ ํ–ฅ์ƒ์šฉ X-mixing ๋ฉด์†Œ์Šค ์ฆ์ฐฉ ๊ธฐ์ˆ  ๋ฐœํ‘œ

SID 2018์—์„œ OLEDON์˜ ํ™ฉ์ฐฝํ›ˆ ๋Œ€ํ‘œ๋Š” 2,250ppi์˜ ์ดˆ๊ณ ํ•ด์ƒ๋„ AMOLED๋ฅผ ์ œ์ž‘ ํ•  ์ˆ˜ ์žˆ๋Š” ์ƒˆ๋กœ์šด ๋ฉด์†Œ์Šค FMM ์ฆ์ฐฉ๊ธฐ์ˆ ์„ ๋ฐœํ‘œํ–ˆ๋‹ค.

๋ฐœํ‘œ์— ๋”ฐ๋ฅด๋ฉด, ํ˜„์žฌ ์–‘์‚ฐ์— ์ ์šฉ ์ค‘์ธ ๋ฆฌ๋‹ˆ์–ด ์†Œ์Šค๋Š” 3um์˜ ์„€๋„์šฐ ๊ฑฐ๋ฆฌ(shadow distance)๋กœ ์ธํ•ด ๊ณ ํ•ด์ƒ๋„ ๊ตฌํ˜„ ์‹œ ๋ฏธ์„ธ ์ธ์ ‘ ํŒจํ„ด๋“ค์˜ ์ค‘์ฒฉ์„ ๋ฐœ์ƒ์‹œํ‚ค๊ธฐ๋Š” ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•œ๋‹ค. ํ•˜์ง€๋งŒ ํ™ฉ๋Œ€ํ‘œ๋Š” ๋ฉด์†Œ์Šค๋ฅผ ์ด์šฉํ•ด ํŒจํ„ด๋“ค์˜ ์„€๋„์šฐ ๊ฑฐ๋ฆฌ๋ฅผ 0.18 um๊นŒ์ง€ ์ค„์ด๋Š”๋ฐ ์„ฑ๊ณตํ•˜์˜€๋‹ค๊ณ  ๋ฐํ˜”์œผ๋ฉฐ, ์ด๋Š” ํ˜„์žฌ๊นŒ์ง€ ๋ฐœํ‘œ ๋œ ์„€๋„์šฐ ๊ฑฐ๋ฆฌ ์ค‘ ๊ฐ€์žฅ ์ตœ์†Œ์˜ ์„€๋„์šฐ ๊ฑฐ๋ฆฌ๋ผ๊ณ  ์„ค๋ช…ํ–ˆ๋‹ค.

<๊ธฐ์กด ๊ณต์ •๊ณผ ๋ฉด์†Œ์Šค๋ฅผ ์ด์šฉํ•œ ๊ณต์ •์˜ ์„€๋„์šฐํ˜„์ƒ(shadow effect) ๋น„๊ต, Source: OLEDON>

์•„์šธ๋Ÿฌ ํ™ฉ๋Œ€ํ‘œ๋Š” ํ˜ธ์ŠคํŠธ๋ฐ•๋ง‰๊ณผ ๋„ํŒํŠธ๋ฐ•๋ง‰์„ ๋”ฐ๋กœ ๊ธˆ์†๋ฉด์— ์ฆ์ฐฉ ํ•œ ํ›„ ๋ฉด์ฆ๋ฐœ์„ ํ†ตํ•ด ํ˜ธ์ŠคํŠธ ๋ถ„์ž์™€ ๋„ํŒํŠธ ๋ถ„์ž๊ฐ€ ์ž๋™ ํ™•์‚ฐ๋˜์–ด ๋ฐœ๊ด‘์ธต์ด ํ˜•์„ฑ๋˜๋Š” โ€˜X-mixingโ€™๊ธฐ์ˆ ์„ ๊ฐœ๋ฐœํ•˜์˜€๋‹ค๊ณ  ๋ฐœํ‘œํ•˜์˜€๋‹ค. ํ™ฉ๋Œ€ํ‘œ๋Š” โ€œ๊ธฐ์กด ๊ธฐ์ˆ ์ธ ํ˜ธ์ŠคํŠธ ๋ฌผ์งˆ๊ณผ ๋„ํŒํŠธ ๋ฌผ์งˆ์„ ๋™์‹œ์— ๊ธฐํ™”๋˜๋Š” ๋ฆฌ๋‹ˆ์–ด ์†Œ์Šค ์ฆ์ฐฉ๊ธฐ์ˆ ๋กœ๋Š” ๋„ํŒํŠธ์˜ ์กฐ์„ฑ ์ œ์–ด๊ฐ€ ์‰ฝ์ง€ ์•Š์œผ๋‚˜, X-mixing ๊ธฐ์ˆ ์€ ์กฐ์„ฑ ์ œ์–ด๊ฐ€ ์ž์œ ์ž์žฌ๋กœ ๊ฐ€๋Šฅํ•˜๊ธฐ ๋•Œ๋ฌธ์— ๊ธฐ์กด ๋Œ€๋น„ 4๋ฐฐ๊นŒ์ง€ ํ–ฅ์ƒ ๋œ ๋ฌผ์งˆ ์‚ฌ์šฉ๋ฅ  ๋‹ฌ์„ฑ์ด ๊ฐ€๋Šฅํ•˜๋‹คโ€๊ณ  ๋ฐํ˜”๋‹ค.

<๊ธฐ์กด๋ฐฉ์‹์œผ๋กœ ์ฆ์ฐฉ ๋œ ๋ฐœ๊ด‘์ธต๊ณผ ๋ฉด์†Œ์Šค๋กœ ์ฆ์ฐฉ ๋œ ๋ฐœ๊ด‘์ธต์˜ SIMS ๋ฐ์ดํ„ฐ, Source: OLEDON>

<X-mixing ๊ธฐ์ˆ ๋กœ ์–ป์€ ๋ฐœ๊ด‘์ธต์˜ dopant gradient ๋ฐ์ดํ„ฐ, Source: OLEDON>

ํ™ฉ๋Œ€ํ‘œ๋Š” โ€œX-mixing ๊ธฐ์ˆ ๋กœ ์ œ์ž‘ํ•œ green OLED์˜ ๊ฒฝ์šฐ ๊ธฐ์กด ๊ธฐ์ˆ ๋ณด๋‹ค 40% ํ–ฅ์ƒ ๋œ ๋ฐœ๊ด‘ํšจ์œจ์„ ํ™•์ธํ•˜์˜€๋‹คโ€๊ณ  ์–ธ๊ธ‰ํ•˜๋ฉฐ โ€œOLEDON์€ ํ˜„์žฌ ์†Œ์ž์˜ ๋ฐœ๊ด‘ํšจ์œจํ–ฅ์ƒ์„ ๋ชฉ์ ์œผ๋กœ ์—‘์‹œํ†คํ˜•์„ฑ์˜ ์ตœ์ ํ™” ๋œ X-mixing ๊ฐœ๋ฐœ๊ณผ ์‹ ๊ฐœ๋…์˜ sub-micron ์ •๋ฐ€๋„๋ฅผ ์ง€๋‹Œ mask aligner๋ฅผ ๊ฐœ๋ฐœ ์ค‘โ€์ด๋ผ๊ณ  ๋ฐํ˜”๋‹ค.

<X-mixing ๊ธฐ์ˆ ๋กœ ์ œ์ž‘ ๋œ green OLED์™€ ๊ธฐ์กด ๋ฐฉ์‹์œผ๋กœ ์ œ์ž‘ ๋œ green OLED์˜ ๋ฐœ๊ด‘ ๋ฐ์ดํ„ฐ, Source: OLEDON>

๋งˆ์ง€๋ง‰์œผ๋กœ ํ™ฉ๋Œ€ํ‘œ๋Š” ์ด๋ฒˆ ๊ฐœ๋ฐœ๊ฒฐ๊ณผ๋ฅผ ํ† ๋Œ€๋กœ ์ดˆ๊ณ ํ•ด์ƒ๋„ ๋งˆ์ดํฌ๋กœ OLED ์†Œ์ž์˜ ์ œ์กฐ๊ฐ€ ๊ฐ€๋Šฅํ•œ ์—ฐ๊ตฌ์šฉ ๋ฉด์†Œ์Šค FMM ์ฆ์ฐฉ๊ธฐ๋ฅผ ๋‹จ๊ตญ๋Œ€ํ•™๊ต๋‚ด์— ์„ค์น˜ํ•  ๊ณ„ํš์ด๋ผ๊ณ  ์–ธ๊ธ‰ํ–ˆ๋‹ค. (์ฐธ๊ณ :OLEDON์‚ฌ์˜ ํ™ˆํŽ˜์ด์ง€ www.oledon.co.kr)

[IMID 2017] Opening solution for next generation high-resolution OLED implementation

Various solutions for high resolution OLED implementation were released at iMiD 2017 held in COEX from October 18th to 19th. As the resolution of small and mid-sized OLEDs, which are currently being commercialized, is staying at the QHD level, the solutions released at this time have attracted a great deal of attention from display members.

First, Hwang Chang-hoon, CEO of OLEDON, who is developing plane source FMM deposition technology, announced at the business forum, “The plane source FMM deposition technology currently being developed is the only alternative for ultra-high resolution OLED manufacturing at 2,250 ppi”. Hwang Chang-hoon CEO said, “We measured the shadow distance using a-step, and it was 0.38 ฮผm. We can fabricate OLED device with 2,250 ppi only if we have this shadow distance.” “We are currently looking for shadow-free process conditions”

<Difference in shadow distance between point source and plane source>

In addition, Hwang Chang-hoon said, “We first co-deposited the host material and the dopant material on the metal plate to evaporate the deposited green donor thin film and measure the green target thin film with the same PL wavelength for the first timeโ€ and “Color control of target thin films made with plate sources can be controlled by the amount of dopant molecules in the donor film, so color control is expected to be easy”.

<OLEDON plane evaporation co-deposition material>

AP Systems, which recently announced the successful development of 1,000 ppi FMM using ultra-short pulse laser (USPL), exhibited 5.28 inch FMM of 825 ppi and 4.72 inch FMM of 677 ppi at this exhibition. A company official said, “By developing a burr-free laser process to solve the burr problem caused by the heat generated during the fabrication process, it is possible to fabricate not only FMM of 1170 ppi but also FMM of various shapes”.

<5.28 inch 825ppi FMM of AP Systems>

Finally, Philoptics unveiled FMMs fabricated using electro forming, especially, FMM of 1,200 ppi, which attracted attention this time, was displayed separately in the VIP room. A company official said “We have secured the stability of the process for the production of 1,200 ppi FMM,” and mentioned “We plan to deliver it to panel makers for testing in the first half of next year, and aim to develop FMM at 2,000 ppi later.”

<FMM of Philoptics manufactured by electro forming method>

As such, in this iMiD 2017, various solutions for high-resolution patterning of OLEDs has been released. Recently, as the number of contents requiring high-resolution OLED such as virtual reality contents increases, interest of smartphone users are increasingly interested. It is worth noting which solution will enable the small to medium-sized UHD OLED era.

[IMID 2017] ์ฐจ์„ธ๋Œ€ ๊ณ ํ•ด์ƒ๋„ OLED ๊ตฌํ˜„์„ ์œ„ํ•œ solution ๋Œ€๊ฑฐ ๊ณต๊ฐœ

์ง€๋‚œ 10์›” 18์ผ๋ถ€ํ„ฐ 19์ผ๊นŒ์ง€ ์ฝ”์—‘์Šค์—์„œ ์—ด๋ฆฐ iMiD 2017์—์„œ ๊ณ ํ•ด์ƒ๋„ OLED ๊ตฌํ˜„์„ ์œ„ํ•œ ๋‹ค์–‘ํ•œ solution๋“ค์ด ๊ณต๊ฐœ ๋๋‹ค. ํ˜„์žฌ ์ƒ์šฉํ™” ๋˜๊ณ  ์žˆ๋Š” ์ค‘์†Œํ˜• OLED์˜ ํ•ด์ƒ๋„๊ฐ€ QHD๊ธ‰์—์„œ ๋จธ๋ฌผ๊ณ  ์žˆ๋Š” ๋งŒํผ ์ด๋ฒˆ์— ๊ณต๊ฐœ ๋œ solution๋“ค์€ ๋””์Šคํ”Œ๋ ˆ์ด ๊ด€๊ณ„์ž๋“ค์—๊ฒŒ ํฐ ์ฃผ๋ชฉ์„ ๋ฐ›์•˜๋‹ค.

๋จผ์ €, ๋ฉด์†Œ์Šค FMM ์ฆ์ฐฉ ๊ธฐ์ˆ ์„ ๊ฐœ๋ฐœ ์ค‘์ธ OLEDON์˜ ํ™ฉ์ฐฝํ›ˆ ๋Œ€ํ‘œ๋Š” business forum์—์„œ โ€œ2,250 ppi์˜ ์ดˆ๊ณ ํ•ด์ƒ๋„ OLED ์ œ์กฐ๋ฅผ ์œ„ํ•ด์„œ๋Š” ํ˜„์žฌ ๊ฐœ๋ฐœ ์ค‘์ธ ๋ฉด์†Œ์Šค FMM ์ฆ์ฐฉ๊ธฐ์ˆ ์ด ์œ ์ผํ•œ ๋Œ€์•ˆโ€์ด๋ผ๊ณ  ๋ฐœํ‘œํ•˜์˜€๋‹ค. ํ™ฉ์ฐฝํ›ˆ ๋Œ€ํ‘œ๋Š” โ€œa-step์„ ์ด์šฉํ•˜์—ฌ shadow distance๋ฅผ ์ธก์ •ํ•œ ๊ฒฐ๊ณผ 0.38 um์˜€์œผ๋ฉฐ, ์ด๋Ÿฌํ•œ shadow distance๋ฅผ ๊ฐ€์ ธ์•ผ ๋น„๋กœ์†Œ 2,250 ppi์˜ OLED ์†Œ์ž ์ œ์ž‘์ด ๊ฐ€๋Šฅํ•˜๋‹คโ€๋ผ๋ฉฐ โ€œํ˜„์žฌ shadow-freeํ•œ ๊ณต์ • ์กฐ๊ฑด์„ ์ฐพ๊ณ  ์žˆ๋‹คโ€๋ผ๊ณ  ๋ฐํ˜”๋‹ค.

<ํฌ์ธํŠธ์†Œ์Šค์™€ ๋ฉด์†Œ์Šค์˜ shadow distance ์ฐจ์ด>

๋˜ํ•œ, ํ™ฉ์ฐฝํ›ˆ ๋Œ€ํ‘œ๋Š” โ€œํ˜ธ์ŠคํŠธ ๋ฌผ์งˆ๊ณผ ๋„ํŒํŠธ ๋ฌผ์งˆ์„ ๊ธˆ์†๋ฉด์— co-depositionํ•˜์—ฌ ์ฆ์ฐฉ๋œ ๊ทธ๋ฆฐ ๋„๋„ˆ๋ฐ•๋ง‰์„ ์žฌ์ฆ๋ฐœํ•˜์—ฌ ๋™์ผํ•œ PL ํŒŒ์žฅ์„ ๊ฐ€์ง€๋Š” ๊ทธ๋ฆฐ ํƒ€๊ฒŸ๋ฐ•๋ง‰์„ ์ตœ์ดˆ๋กœ ์ธก์ •ํ•˜์˜€๋‹คโ€๋ฉฐ โ€œ๋ฉด์†Œ์Šค๋กœ ์ œ์ž‘ํ•œ ํƒ€๊ฒŸ๋ฐ•๋ง‰์˜ ์นผ๋ผ ์ œ์–ด๋Š” ๋„๋„ˆ๋ฐ•๋ง‰์˜ ๋„ํŒํŠธ ๋ถ„์ž์˜ ์–‘์œผ๋กœ ์กฐ์ ˆ์ด ๊ฐ€๋Šฅํ•˜๊ธฐ ๋•Œ๋ฌธ์— ์ƒ‰ ์กฐ์ ˆ์ด ์‰ฌ์šธ๊ฒƒ์œผ๋กœ ์˜ˆ์ƒ๋œ๋‹คโ€๋ผ๊ณ  ๋ฐํ˜”๋‹ค.

<OLEDON์˜ ๋ฉด์ฆ๋ฐœ co-deposition ์ž๋ฃŒ>

ํ•œํŽธ, ์ตœ๊ทผ USPL(ultra-short pulse laser)์„ ์ด์šฉํ•˜์—ฌ 1,000 ppi FMM ๊ฐœ๋ฐœ์— ์„ฑ๊ณตํ–ˆ๋‹ค๊ณ  ๋ฐœํ‘œํ•œ AP Systems๋Š” ์ด๋ฒˆ ์ „์‹œํšŒ์—์„œ 825 ppi์˜ 5.28 inch FMM์™€ 677 ppi์˜ 4.72 inch FMM์„ ์ „์‹œํ–ˆ๋‹ค. ์—…์ฒด๊ด€๊ณ„์ž๋Š” โ€œburr-free laser process๋ฅผ ๊ฐœ๋ฐœํ•˜์—ฌ ์ œ์ž‘ ๊ณต์ • ์‹œ ๋ฐœ์ƒํ•˜๋Š” ์—ด๋กœ ์ธํ•œ burr ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜์˜€์œผ๋ฉฐ, ์ด๋Ÿฌํ•œ ๋ฐฉ์‹์œผ๋กœ 1170 ppi์˜ FMM ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ ๋‹ค์–‘ํ•œ ํ˜•ํƒœ๋ฅผ ๊ฐ–๋Š” FMM๋„ ์ œ์ž‘์ด ๊ฐ€๋Šฅํ•˜๋‹คโ€๊ณ  ์–ธ๊ธ‰ํ–ˆ๋‹ค.

<AP Systems์˜ 5.28 inch 825ppi FMM>

๋งˆ์ง€๋ง‰์œผ๋กœ Philoptics๋Š” ์ „ํ•ด์ฃผ์กฐ(electro forming)์„ ์ด์šฉํ•˜์—ฌ ์ œ์ž‘ ๋œ FMM๋“ค์„ ๊ณต๊ฐœํ•˜์˜€์œผ๋ฉฐ, ํŠนํžˆ ์ด๋ฒˆ์— ์ฃผ๋ชฉ๋ฐ›์€ 1,200 ppi์˜ FMM์€ VIP room์— ๋”ฐ๋กœ ์ „์‹œํ•˜์˜€๋‹ค. ์—…์ฒด ๊ด€๊ณ„์ž๋Š” โ€œํ˜„์žฌ 1,200 ppi FMM ์ œ์ž‘์„ ์œ„ํ•œ ๊ณต์ •์˜ ์•ˆ์ •์„ฑ๋„ ํ™•๋ณดํ–ˆ๋‹คโ€๊ณ  ๋ฐํžˆ๋ฉฐ โ€œ๋‚ด๋…„ ์ƒ๋ฐ˜๊ธฐ์— test์šฉ์œผ๋กœ ํŒจ๋„ ์—…์ฒด์— ๋‚ฉํ’ˆ ์˜ˆ์ •์ด๋ฉฐ ์ถ”ํ›„์— 2,000 ppi ์ˆ˜์ค€์˜ FMM์„ ๊ฐœ๋ฐœํ•˜๋Š” ๊ฒƒ์ด ๋ชฉํ‘œโ€๋ผ๊ณ  ์–ธ๊ธ‰ํ–ˆ๋‹ค.

<์ „ํ•ด์ฃผ์กฐ ๋ฐฉ์‹์œผ๋กœ ์ œ์ž‘ ๋œ Philoptics์˜ FMM>

์ด์ฒ˜๋Ÿผ ์ด๋ฒˆ iMiD 2017์—์„œ๋Š” OLED์˜ ๊ณ ํ•ด์ƒ๋„ ํŒจํ„ฐ๋‹์„ ์œ„ํ•œ ๋‹ค์–‘ํ•œ solution์ด ๊ณต๊ฐœ ๋๋‹ค. ์ตœ๊ทผ ๋“ค์–ด ๊ฐ€์ƒํ˜„์‹ค ์ปจํ…์ธ  ๋“ฑ ๊ณ ํ•ด์ƒ๋„ OLED๊ฐ€ ํ•„์š”ํ•œ ์ปจํ…์ธ ๋“ค์ด ์ฆ๊ฐ€ํ•จ์— ๋”ฐ๋ผ ์Šค๋งˆํŠธํฐ ์‚ฌ์šฉ์ž๋“ค์˜ ๊ด€์‹ฌ๋„ ์ ์  ๊ณ ์กฐ๋˜๊ณ  ์žˆ๋‹ค. ์ค‘์†Œํ˜• UHD OLED ์‹œ๋Œ€๋Š” ์–ด๋Š solution์— ์˜ํ•ด ๊ฐœํ™” ๋ ์ง€ ๊ท€์ถ”๊ฐ€ ์ฃผ๋ชฉ๋œ๋‹ค.

์ดˆ๊ณ ํ™”์งˆ ํ•ด์ƒ๋„(UHD)์˜ OLED ์Šค๋งˆํŠธํฐ ์‹œ๋Œ€ ์—ด๋ฆด๊นŒ

์ตœ๊ทผ ์Šค๋งˆํŠธํฐ ๊ธฐ๊ธฐ๋ฅผ ํ†ตํ•œ VR ์ปจํ…์ธ  ์ฒดํ—˜์ด ์ฆ๊ฐ€ํ•˜๋Š” ์ถ”์„ธ๋กœ ์ธํ•ด ๊ณ ํ•ด์ƒ๋„ ์Šค๋งˆํŠธํฐ์ด ์š”๊ตฌ๋˜๊ณ  ์žˆ์œผ๋‚˜, 2014๋…„ Galaxy Note4์— ์ตœ์ดˆ๋กœ QHD OLED๊ฐ€ ์ ์šฉ๋œ ์ดํ›„ 3๋…„ ๋™์•ˆ OLED ์Šค๋งˆํŠธํฐ์˜ ํ•ด์ƒ๋„๋Š” ์—ฌ์ „ํžˆ QHD๊ธ‰์— ๋จธ๋ฌผ๊ณ  ์žˆ๋‹ค.

OLED ์Šค๋งˆํŠธํฐ์˜ ํ•ด์ƒ๋„๋ฅผ ๊ฒฐ์ •ํ•˜๋Š” ํ•ต์‹ฌ์€ ๋ฐœ๊ด‘์ธต์˜ ์ฆ์ฐฉ ๊ณต์ •์ด๋‹ค. ํ˜„์žฌ ์ ์šฉ ๋˜๊ณ  ์žˆ๋Š” ์ƒํ–ฅ์‹ ์ฆ์ฐฉ ๋ฐฉ์‹์€ ๊ธฐํŒ๊ณผ FMM(fine metal mask)๋ฅผ ์ˆ˜ํ‰์œผ๋กœ ํ•˜์—ฌ ์ฆ์ฐฉ ์žฅ๋น„ ์ƒ๋ถ€์— ๋ฐฐ์น˜ํ•œ ๋’ค ํ•˜๋ถ€์˜ ๋ฆฌ๋‹ˆ์–ด ์†Œ์Šค์—์„œ ์œ ๊ธฐ๋ฌผ์„ ์ฆ๋ฐœ์‹œ์ผœ RGB ๋ฐœ๊ด‘์ธต์„ ํ˜•์„ฑํ•˜๋Š” ๋ฐฉ์‹์ด๋‹ค.

UHD๊ธ‰ ์ด์ƒ์˜ ๊ณ ํ•ด์ƒ๋„ OLED๋ฅผ ์ œ์กฐํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” 15um ๋‘๊ป˜ ์ดํ•˜์˜ ์–‡์€ FMM์ด ํ•„์š”ํ•˜๋‚˜ FMM์ด ์–‡์•„์งˆ์ˆ˜๋ก patterning, ์ธ์žฅ, ์šฉ์ ‘๋“ฑ์˜ ๊ธฐ์ˆ ์ ์ธ ์ด์Šˆ๊ฐ€ ๋ฐœ์ƒํ•˜์—ฌ ์–‘์‚ฐ์ ์šฉ์ด ์–ด๋ ต๋‹ค.

์ด๋Ÿฌํ•œ ๋ฌธ์ œ๋“ค์„ ๊ทน๋ณตํ•˜๊ธฐ ์œ„ํ•ด ์ˆ˜์งํ˜• ์ฆ์ฐฉ๊ณผ ๋ฉด์†Œ์Šค ์ฆ์ฐฉ, ๋‹ค์–‘ํ•œ metal mask patterning ๊ธฐ์ˆ ๋“ค์ด ๊ฐœ๋ฐœ๋˜๊ณ  ์žˆ๋‹ค.

๊ธฐํŒ๊ณผ FMM๋ฅผ ์ˆ˜์ง์œผ๋กœ ๋ฐฐ์น˜ํ•˜๋Š” ์ˆ˜์งํ˜• ์ฆ์ฐฉ๊ธฐ๋Š” ์ผ๋ณธ์˜ Hitachi์—์„œ ์ตœ์ดˆ๋กœ ๊ฐœ๋ฐœํ•˜์˜€์œผ๋ฉฐ, ย Canon tokki๋„ Finetech Japan 2013์—์„œ 6์„ธ๋Œ€ ์ˆ˜์ง ์ฆ์ฐฉ ๋ฐฉ์‹์˜ ์žฅ๋น„๋ฅผ ๊ณต๊ฐœํ•œ๋ฐ” ์žˆ์œผ๋‚˜ ํ˜„์žฌ ์–‘์‚ฐ์— ์ ์šฉ๋˜๊ณ  ์žˆ์ง„ ์•Š๋‹ค.

 

<Finetech Japan 2013์—์„œ ๊ณต๊ฐœ ๋œ Canon tokki์˜ Gen6 vertical type evaporator>

ํ•˜์ง€๋งŒ ์ตœ๊ทผ ์ „์ž์‹ ๋ฌธ์— ๋”ฐ๋ฅด๋ฉด Applied Materials์—์„œ 6์„ธ๋Œ€ flexible OLED์šฉ ์ˆ˜์ง ์ฆ์ฐฉ ๋ฐฉ์‹์˜ ์ฆ์ฐฉ ์žฅ๋น„๋ฅผ ๊ฐœ๋ฐœํ–ˆ๋‹ค๊ณ  ๋ฐํ˜”์œผ๋ฉฐ, ์ผ๋ณธ์˜ Japan Display์—์„œ test ์ค‘์ด๋ผ๊ณ  ์–ธ๊ธ‰ํ•œ๋ฐ” ์žˆ๋‹ค.

๋ฆฌ๋‹ˆ์–ด์†Œ์Šค๊ฐ€ ์•„๋‹Œ ๋ฉด์†Œ์Šค๋ฅผ ์ด์šฉํ•œ ์ฆ์ฐฉ ๋ฐฉ์‹๋„ ๊ฒ€ํ† ๋˜๊ณ  ์žˆ๋‹ค. ๋ฉด์†Œ์Šค ์ฆ์ฐฉ ๋ฐฉ์‹์€ ์œ ๊ธฐ๋ฌผ์„ ๊ธˆ์†๋ฉด์— 1์ฐจ๋กœ ์ฆ์ฐฉํ•˜์—ฌ ๋ฉด์†Œ์Šค๋ฅผ ๋งŒ๋“  ํ›„, ์ด๋ฅผ ์žฌ์ฆ๋ฐœ์‹œ์ผœ ๊ธฐํŒ์— ์œ ๊ธฐ๋ฌผ ๋ฐ•๋ง‰์„ ํ˜•์„ฑํ•˜๋Š” ์›๋ฆฌ๋กœ์จ ์ง€๋‚œ iMiD 2017์—์„œ OLEDON์˜ ํ™ฉ์ฐฝํ›ˆ ๋Œ€ํ‘œ๋Š” ๋ฉด์†Œ์Šค ์ฆ์ฐฉ ๋ฐฉ์‹์„ ํ†ตํ•ด 2250 ppi์˜ ๊ณ ํ•ด์ƒ๋„ OLED ๊ตฌํ˜„์ด ๊ฐ€๋Šฅํ•˜๋‹ค๊ณ  ์–ธ๊ธ‰ํ•˜์˜€๋‹ค.

Metal Mask patterning ๊ธฐ์ˆ ๋กœ๋Š” ์ „์ฃผ๋„๊ธˆ(electro forming)๊ณผ laser patterning ๊ธฐ์ˆ ์ด ์ฃผ๋กœ ๊ฑฐ๋ก ๋˜๊ณ  ์žˆ๋‹ค. ์ „์ฃผ๋„๊ธˆ ๋ฐฉ์‹์€ Wave Electornics์™€ TGO Technology, Athene๋“ฑ์˜ ์—…์ฒด์—์„œ ๊ฐœ๋ฐœํ•˜๊ณ  ์žˆ์œผ๋ฉฐ, laser patterning ๊ธฐ์ˆ ์€ AP Systems์—์„œ ๊ฐœ๋ฐœ์ค‘์— ์žˆ๋‹ค.

์ด์ฒ˜๋Ÿผ ๋‹ค์–‘ํ•œ ๊ด€์ ์—์„œ ์ง„ํ–‰๋˜๊ณ  ์žˆ๋Š” ๊ณ ํ•ด์ƒ๋„ OLED ๊ตฌํ˜„์„ ์œ„ํ•œ ๊ฐœ๋ฐœ์ด ํ˜„์žฌ์˜ ๋ฌธ์ œ๋ฅผ ๊ทน๋ณตํ•˜๊ณ  OLED ์Šค๋งˆํŠธํฐ์˜ UHD ํ•ด์ƒ๋„ ๊ตฌํ˜„์— ๊ธฐ์—ฌํ•  ์ˆ˜ ์žˆ์„์ง€ ๋งŽ์€ ๊ด€์‹ฌ์ด ์ง‘์ค‘๋˜๊ณ  ์žˆ๋‹ค.

<OLEDON์‚ฌ๊ฐ€ ๊ฐœ๋ฐœํ•œ ๋ฉด์†Œ์Šค ์ฆ์ฐฉ ๊ธฐ์ˆ  ์›๋ฆฌ>

Is there possibility of High resolution(UHD) OLED Smart-phone generation?

Recently VR contents experience through smart-phone device has been increased, therefore high resolution of smart phone is becoming necessary. However, OLED smart-phone resolution still remains at QHD level for 3 years since QHD OLED is applied to Galaxy Note 4 for the first time in 2014.

The core point that decides resolution of OLED smart-phone is evaporation process for emission layer. Bottom-up type evaporation method, which is applied to the recent devices is that substrate and FMM (fine metal mask) are horizontally arranged on the upper side of evaporator and vaporize the organic material from the lower linear source in order to form RGB layer.

Thin FMM measures less than 15um thick is necessary for making high resolution OLED like UHD level, however, as FMM gets thinner, it would be difficult to make mass production because technical problems will be occurred such as patterning, sealing and welding.

In order to solve these problems, various metal mask patterning technologies are being developed such as vertical type evaporation and plane source evaporation.

Vertical type evaporator that arranges board and FMM vertical is developed by Hitachi of Japan for the first time. And Canon Tokki exhibited Gen6 vertical type evaporator at Finetech Japan 2013, however it is not being used for mass production at the moment.

<Canon Tokkiโ€™s Gen6 vertical type evaporator which is exhibited at Finetech Japan 2013>

 

According to the recent ETNEWS, Applied Materials developed Gen6 flexible OLED vertical type evaporator and it is being tested in Japan Display.

Plane source evaporator is being tested but also the linear source type. Plane source evaporator method is that an organic material is first evaporated on the metal surface to produce plane source, then re-evaporated in order to form an organic thin film on the substrate.

In the past iMiD 2017, representative of OLEDON, Chang Hoon Hwang mentioned that 2250 ppi resolution OLED can be implemented through plane source evaporator.

For metal mask patterning technology, electro forming and laser patterning technology is highlighted. Electro forming method is developed by Wave Electronics, TGO Technology, Athene and so on. Laser patterning technology is being developed by AP Systems.

As such, development for high resolution OLED is receiving great attention whether it can solve the current problems and contribute to UHD resolution implementation for OLED smart-phone.

<Principle of plane source evaporation developed by OLEDON>

OLEDON, Find the future of AMOLED in plane source FMM!

Three years have passed since the first QHD (about 515 ppi) OLED applied to Galaxy Note4 in 2014, but OLED resolution is still in QHD. In order to manufacture high-resolution OLED over UHD, FMM of less than 15 ฮผm is required, but it is not applied to mass production due to various technical issues.

Professor Hwang Chang-Hoon, CEO of OLEDON, a venture business of Dankook University, proposed that the plane source FMM deposition technology is the only solution for a high-resolution OLED manufacturing process over UHD at the 1H semester UBI Research Seminar “OLED Market Analysis and Latest Technology” held on June 30 (Fri) at Yeouido FKI Conference Center.

Professor Hwang Chang-Hoon said, “To improve the resolution of AMOLED, the angle of flight of organic molecules should be reduced to less than 10 degrees and the aspect ratio of TFT devices should be maintained at 1.0 level.” and explained “The evaporation angle (incidence angle) of the currently known linear source is about 40 degrees, and the shadow distance is about 3 um. Therefore, the ratio of the pattern width, the shadow distance, and the aspect ratio can be increased at the SUHD level AMOLED patterning process. Ultimately, the current patterning technology loses the flatness of the film. “.

In addition, Professor Hwang Chang-Hoon said, “Linear deposition technology has limitations in achieving resolution higher than QHD, and development of plane source FMM deposition technology is the only way to manufacture OLED with 2000 ppi or higher.”.

 

<Professor Hwang Chang-Hoon announced the 2250ppi AMOLED technical problem, Source: the 1H semester UBI Research Seminar>

 

The shadow distance measured by OLEDON’s plane source FMM deposition technique ranges from 0.68 to 1.05 ฮผm and the angle of incidence is 13 to 19 degrees and converting this result to resolution makes it possible to fabricate a device with a maximum of 1500 ppi. On the other hand, with the newly developed Xplane source, the shadow distance was 0.38 ~ 0.56um and the incident angle was 7.2 ~ 8.0 degrees, it is possible to manufacture up to 3300 ppi device by converting it to the resolution. In the last SID2017, Prof. Jin Byung-Doo and Prof. Hwang Chang-Hoon introduced the world’s first measurement of sub-micron-scale shadow distance using plane source patterning technology, it has been announced that it is possible to manufacture a micro AMOLED device having a Super Ultra (SUHD) resolution of 11K (2250 ppi) or more if scale-up development is applied to large-area OLED display production industry in the future. (Paper title: Plane source evaporation techniques for Super ultra high resolution flexible AMOLED)

 

Sub-micron Shadow data and incident angle data obtained by plane source FMM deposition technology, Source: the 1H semester UBI Research Seminar

 

On the other hand, based on the development results, OLEDON announced that it plans to develop and install planar source FMM evaporator for research, which can manufacture ultra-high resolution micro OLED devices using plane source deposition technology, in Dankook University. (Refer to: OLEDON homepage www.oledon.co.kr)

 

OLEDON, AMOLED์˜ ๋ฏธ๋ž˜๋ฅผ ๋ฉด์†Œ์Šค FMM์—์„œ ๋ฐœ๊ฒฌํ•˜๋‹ค!

2014๋…„ Galaxy Note4์— ์ตœ์ดˆ๋กœ QHD (์•ฝ 515 ppi) OLED๊ฐ€ ์ ์šฉ๋œ ์ดํ›„ 3๋…„์ด ํ˜๋ €์ง€๋งŒ OLED์˜ ํ•ด์ƒ๋„๋Š” ์•„์ง QHD๊ธ‰์— ๋จธ๋ฌผ๊ณ  ์žˆ๋‹ค. UHD ์ด์ƒ์˜ ๊ณ ํ•ด์ƒ๋„ OLED ์ œ์กฐ๋ฅผ ์œ„ํ•ด์„œ๋Š” 15um ์ดํ•˜์˜ FMM์ด ํ•„์š”ํ•˜์ง€๋งŒ ๋‹ค์–‘ํ•œ ๊ธฐ์ˆ ์ ์ธ ์ด์Šˆ๋กœ ์–‘์‚ฐ์— ์ ์šฉ๋˜๊ณ  ์žˆ์ง€ ๋ชปํ•œ ์ƒํ™ฉ์ด๋‹ค.

 

6์›” 30์ผ ์—ฌ์˜๋„ ์ „๊ฒฝ๋ จ ํšŒ๊ด€์—์„œ ๊ฐœ์ตœ๋œ ์œ ๋น„์‚ฐ์—…๋ฆฌ์„œ์น˜์˜ โ€œ์ƒ๋ฐ˜๊ธฐ ๊ฒฐ์‚ฐ์„ธ๋ฏธ๋‚˜ : OLED ์‹œ์žฅ๋ถ„์„๊ณผ ์ตœ์‹ ๊ธฐ์ˆ โ€์—์„œ ๋‹จ๊ตญ๋Œ€ํ•™๊ต์˜ ์‹คํ—˜์‹ค ๋ฒค์ฒ˜ OLEDON ๋Œ€ํ‘œ์ธ ํ™ฉ์ฐฝํ›ˆ ๊ต์ˆ˜๋Š” plane source FMM ์ฆ์ฐฉ๊ธฐ์ˆ ์ด UHD ์ด์ƒ์˜ ๊ณ ํ•ด์ƒ๋„ OLED ์ œ์กฐ๋ฅผ ์œ„ํ•œ ์œ ์ผํ•œ ํ•ด๋ฒ•์ด๋ผ๊ณ  ์ œ์‹œํ•˜์˜€๋‹ค.

 

ํ™ฉ์ฐฝํ›ˆ ๊ต์ˆ˜๋Š” โ€œAMOLED์˜ ํ•ด์ƒ๋„๋ฅผ ํ–ฅ์ƒํ•˜๋ ค๋ฉด, ์œ ๊ธฐ๋ฌผ ๋ถ„์ž์˜ ๋น„ํ–‰๊ฐ๋„๋ฅผ 10๋„ ๋ฏธ๋งŒ์œผ๋กœ ์ค„์—ฌ์•ผํ•˜๊ณ , TFT ์†Œ์ž์˜ ์ข…ํšก๋น„(Aspect Ratio)๋ฅผ 1.0์ˆ˜์ค€์œผ๋กœ ์œ ์ง€ํ•ด์•ผ ํ•œ๋‹ค.โ€ ๋ผ๋ฉฐ, โ€œํ˜„์žฌ ์•Œ๋ ค์ง„ ๋ฆฌ๋‹ˆ์–ด์†Œ์Šค์˜ ์ฆ๋ฐœ๊ฐ๋„(์ž…์‚ฌ๊ฐ)๋Š” ์•ฝ 40๋„์ด๋ฉฐ, ์ด์— ๋”ฐ๋ฅธ ์…ฐ๋„์šฐ ๊ฑฐ๋ฆฌ๋Š” ์•ฝ 3um๋กœ SUHD์ˆ˜์ค€์˜ AMOLED ํŒจํ„ฐ๋‹ ๊ณต์ •์‹œ ํŒจํ„ดํญ๊ณผ ์…ฐ๋„์šฐ๊ฑฐ๋ฆฌ์˜ ๋น„์œจ, aspect ratio๊ฐ€ ์ฆ๊ฐ€ํ•  ์ˆ˜ ๋ฐ–์— ์—†๋‹ค. ๊ฒฐ๊ตญ ํ˜„์žฌ์˜ ํŒจํ„ฐ๋‹ ๊ธฐ์ˆ ๋กœ๋Š” ๋ฐ•๋ง‰์˜ ํ‰ํŒ๋„๋ฅผ ์žƒ๊ฒŒ ๋œ๋‹ค.โ€ ๋ผ๊ณ  ์„ค๋ช…ํ–ˆ๋‹ค.

 

๋˜ํ•œ, ํ™ฉ์ฐฝํ›ˆ ๊ต์ˆ˜๋Š” โ€œ๋ฆฌ๋‹ˆ์–ด์†Œ์Šค ์ฆ์ฐฉ๊ธฐ์ˆ ๋กœ๋Š” QHD ์ด์ƒ์˜ ํ•ด์ƒ๋„ ๊ตฌํ˜„์— ํ•œ๊ณ„๊ฐ€ ์žˆ์œผ๋ฉฐ, plane source FMM ์ฆ์ฐฉ๊ธฐ์ˆ  ๊ฐœ๋ฐœ๋งŒ์ด 2000ppi ์ด์ƒ์˜ OLED๋ฅผ ์ œ์กฐํ•  ์ˆ˜ ์žˆ๋Š” ์œ ์ผํ•œ ํ•ด๋ฒ•์ด๋‹คโ€๊ณ  ๊ฐ•์กฐํ•˜์˜€๋‹ค.

 

<ํ™ฉ์ฐฝํ›ˆ ๊ต์ˆ˜๊ฐ€ ๋ฐœํ‘œํ•œ 2250ppi AMOLED ๊ธฐ์ˆ ์  ๋ฌธ์ œ์ , ์ถœ์ฒ˜ : UBI ์ƒ๋ฐ˜๊ธฐ ๊ฒฐ์‚ฐ์„ธ๋ฏธ๋‚˜>

 

 

OLEDON์‚ฌ์˜ plane source FMM ์ฆ์ฐฉ๊ธฐ์ˆ ๋กœ ์ธก์ •ํ•œ ์…ฐ๋„์šฐ๊ฑฐ๋ฆฌ๋Š” 0.68~1.05um, ์ž…์‚ฌ๊ฐ์€ 13~19๋„๋ฅผ ์–ป์„ ์ˆ˜ ์—ˆ์œผ๋ฉฐ, ์ด ๊ฒฐ๊ณผ๋ฅผ ํ•ด์ƒ๋„๋กœ ํ™˜์‚ฐํ•˜๋ฉด ์ตœ๋Œ€ 1500ppi ์†Œ์ž ์ œ์ž‘์ด ๊ฐ€๋Šฅํ•˜๋‹ค. ํ•œํŽธ, ์ƒˆ๋กœ ๊ฐœ๋ฐœ๋œ Xplane source๋กœ๋Š” ์…ฐ๋„์šฐ๊ฑฐ๋ฆฌ 0.38~0.56um, ์ž…์‚ฌ๊ฐ์€ 7.2~8.0๋„๋ฅผ ์–ป์„ ์ˆ˜ ์žˆ์—ˆ์œผ๋ฉฐ, ์ด๋ฅผ ํ•ด์ƒ๋„๋กœ ํ™˜์‚ฐํ•˜๋ฉด ์ตœ๋Œ€ 3300ppi ์†Œ์ž ์ œ์ž‘์ด ๊ฐ€๋Šฅํ•˜๋‹ค. ์ง€๋‚œ SID2017์—์„œ๋„, ์ง„๋ณ‘๋‘๊ต์ˆ˜์™€ ํ™ฉ์ฐฝํ›ˆ ๊ต์ˆ˜ํŒ€์€ plane source ํŒจํ„ฐ๋‹ ์ฆ์ฐฉ๊ธฐ์ˆ ์„ ์‚ฌ์šฉํ•˜์—ฌ ์„ธ๊ณ„์ตœ์ดˆ๋กœ ์ธก์ •ํ•œ ์„œ๋ธŒ๋งˆ์ดํฌ๋ก  ์Šค์ผ€์ผ์˜ ์…ฐ๋„์šฐ๊ฑฐ๋ฆฌ ๊ฒฐ๊ณผ๋ฅผ ์†Œ๊ฐœํ•˜์˜€์œผ๋ฉฐ, ํ–ฅํ›„ ์Šค์ผ€์ผ์—… ๊ฐœ๋ฐœ์„ ํ†ตํ•˜์—ฌ ๋Œ€๋ฉด์  OLED ๋””์Šคํ”Œ๋ ˆ์ด ์ƒ์‚ฐ์‚ฐ์—…์— ์‘์šฉ๋  ๊ฒฝ์šฐ 11K๊ธ‰ (2250ppi) ์ด์ƒ์˜ ์ˆ˜ํผ์šธํŠธ๋ผ(SUHD) ํ•ด์ƒ๋„๋ฅผ ๊ฐ€์ง€๋Š” ๋งˆ์ดํฌ๋กœ AMOLED์†Œ์ž์˜ ์ œ์กฐ๊ฐ€ ๊ฐ€๋Šฅํ•˜๋‹ค๊ณ  ๋ฐœํ‘œํ•œ๋ฐ” ์žˆ๋‹ค. (๋…ผ๋ฌธ์ œ๋ชฉ: Plane source evaporation techniques for Super ultra high resolution flexible AMOLED)

 

<plane source FMM ์ฆ์ฐฉ๊ธฐ์ˆ ๋กœ ์–ป์€ sub-micron ์…ฐ๋„์šฐ ๋ฐ์ดํ„ฐ์™€ ์ž…์‚ฌ๊ฐ ๋ฐ์ดํ„ฐ , ์ถœ์ฒ˜ : UBI ์ƒ๋ฐ˜๊ธฐ ๊ฒฐ์‚ฐ์„ธ๋ฏธ๋‚˜>

 

ํ•œํŽธ, OLEDON์‚ฌ๋Š” ์ด๋ฒˆ ๊ฐœ๋ฐœ๊ฒฐ๊ณผ๋ฅผ ํ† ๋Œ€๋กœ, plane source ์ฆ์ฐฉ๊ธฐ์ˆ ์„ ํ™œ์šฉํ•œ ์ดˆ๊ณ ํ•ด์ƒ๋„ ๋งˆ์ดํฌ๋กœ OLED ์†Œ์ž์˜ ์ œ์กฐ๊ฐ€ ๊ฐ€๋Šฅํ•œ ์—ฐ๊ตฌ์šฉ plane source FMM ์ฆ์ฐฉ๊ธฐ๋ฅผ ๋‹จ๊ตญ๋Œ€ํ•™๊ต๋‚ด์— ๊ฐœ๋ฐœ ์„ค์น˜ํ•  ๊ณ„ํš์ด๋ผ๊ณ  ๋ฐํ˜”๋‹ค. (์ฐธ๊ณ :OLEDON์‚ฌ์˜ ํ™ˆํŽ˜์ด์ง€ www.oledon.co.kr)