75‐2: Novel Plane Source FMM Evaporation Techniques for Manufacturing of 2250ppi flexible AMOLEDs

Hwang, Changhun; Kim, Sung Su; Bang, Shin Woong; Chin, Byung Doo; Jo, Sung-Kee; Choi, Se Ho; Lee, Jong Yae; Ju, Sung Hoo

doi:10.1002/sdtp.12222

Cited by 12 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The plane source evaporator can control the angle of incidence of the organic molecule evaporated from the metal plate for the high ppi micro-OLED. [3] The plane source FMM evaporator consists of FMM, metal plate, point source in the high vacuum chabmer. When the TFT substrate goes into the evaporator, the TFT substrate is aligned with the FMM and the point source evaporates the organic molecules to deposit the donor film on the metal plate.…”

Section: Plane Source Evaporatormentioning

confidence: 99%

11‐5: First Plane Source Evaporator for 100x100mm OLED

Hwang

Kim

Jeong

et al. 2021

Symp Digest of Tech Papers

Self Cite

View full text Add to dashboard Cite

The plane source evaporator has been developed for the 100x100mm glass substrate for the first time. The shadow distance formed by an angle of incidence and the FMM thickness has been measured and the doped depth profile of green and blue EML layers have been observed in the plane source evaporation. The submicron scale shadow distances were as 0.2~0.76um and the doping profiles appears quite uniform. Therefore, it is promising for very high ppi OLED and high brightness OLED to develop by the plane source evaporation techniques.

show abstract

Section: Plane Source Evaporatormentioning

confidence: 99%

11‐5: First Plane Source Evaporator for 100x100mm OLED

Hwang

Kim

Jeong

et al. 2021

Symp Digest of Tech Papers

Self Cite

View full text Add to dashboard Cite

show abstract

“…By the vertical vapor deposition, the smaller angle of incidence of the molecules makes the less shadow distance behind the FMM. [2,3,15]…”

Section: Plane Source Evaporationmentioning

confidence: 99%

67‐3: Unique Belt Plane Source Evaporation Techniques for the Mass Production of 2250ppi AMOLED and 77” QD OLED TV

Hwang

Kim

Bang

et al. 2019

Symp Digest of Tech Papers

Self Cite

View full text Add to dashboard Cite

The AMOLED has a limitation in ppi(pixel per inch) resolution due to the shadow phenomenon in doing evaporation deposition process and the QD-OLED TV device has a limitation in substrate size due to the glass bending during evaporation deposition process. Using the plane source evaporation deposition, the AMOLED resolution can be improved up to 2250ppi and the blue organic film of 12G size glass can be deposited uniformly. The mass production of very high ppi AMOLED and 77" QD-OLED TV will be realized by unique belt plane source evaporator which can supply the continuous plane source evaporation process.

show abstract

“…Furthermore, recent studies have showed that CSS, due to its conformal deposition characteristics, can significantly lower the shadowing effect associated with VTE when used with FMM. [1][2][3] A critical issue of the CSS is the deposition of the emitter layer (EML), which typically has a host-dopant composition. To ensure a uniform concentration of dopant molecules in the host matrix throughout the thickness of the film, the dopant and host molecules must co-evaporate at a fixed rate ratio as they are transferred from the donor substrate to the receiver substrate.…”

Section: Introductionmentioning

confidence: 99%