Micro-cavity design of RGBW AMOLED for 100% color gamut

Baek Woon Lee; Young In Hwang; Hae Yeon Lee; Chi Woo Kim; Young Gu Ju

doi:10.1889/1.3069314

Micro-cavity design of RGBW AMOLED for 100% color gamut

Baek Woon Lee, Young In Hwang, Hae Yeon Lee, Chi Woo Kim, Young Gu Ju

Department of Physics Education

Samsung

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

We report two optical structures for bottom-emitting white OLED. We employed RGBW color system because of its high efficiency. For RGB-subpixels, the cavity resonance was enhanced by dielectric mirror, and for W-subpixel, the mirror was removed. Optical lengths were controlled by two different methods: by the thickness of dielectric filler on top of the mirror or by the angle of oblique emission. With both methods, we were able to fabricate AMOLEDs that exhibited color gamut exceeding 100% NTSC. More importantly, the transmission of white OLED through RJG/B color filters was significantly higher (up to 50%) than that of the conventional structure employing no mirror, even though the color gamut increased from ∼75% to ∼100%.

Original language	English
Pages (from-to)	1050-1053
Number of pages	4
Journal	Digest of Technical Papers - SID International Symposium
Volume	39
Issue number	1
DOIs	https://doi.org/10.1889/1.3069314
State	Published - 2008
Event	2008 SID International Symposium - Los Angeles, CA, United States Duration: 20 May 2008 → 21 May 2008

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title = "Micro-cavity design of RGBW AMOLED for 100% color gamut",

abstract = "We report two optical structures for bottom-emitting white OLED. We employed RGBW color system because of its high efficiency. For RGB-subpixels, the cavity resonance was enhanced by dielectric mirror, and for W-subpixel, the mirror was removed. Optical lengths were controlled by two different methods: by the thickness of dielectric filler on top of the mirror or by the angle of oblique emission. With both methods, we were able to fabricate AMOLEDs that exhibited color gamut exceeding 100% NTSC. More importantly, the transmission of white OLED through RJG/B color filters was significantly higher (up to 50%) than that of the conventional structure employing no mirror, even though the color gamut increased from ∼75% to ∼100%.",

author = "Lee, {Baek Woon} and Hwang, {Young In} and Lee, {Hae Yeon} and Kim, {Chi Woo} and Ju, {Young Gu}",

year = "2008",

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T1 - Micro-cavity design of RGBW AMOLED for 100% color gamut

AU - Lee, Baek Woon

AU - Hwang, Young In

AU - Lee, Hae Yeon

AU - Kim, Chi Woo

AU - Ju, Young Gu

PY - 2008

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N2 - We report two optical structures for bottom-emitting white OLED. We employed RGBW color system because of its high efficiency. For RGB-subpixels, the cavity resonance was enhanced by dielectric mirror, and for W-subpixel, the mirror was removed. Optical lengths were controlled by two different methods: by the thickness of dielectric filler on top of the mirror or by the angle of oblique emission. With both methods, we were able to fabricate AMOLEDs that exhibited color gamut exceeding 100% NTSC. More importantly, the transmission of white OLED through RJG/B color filters was significantly higher (up to 50%) than that of the conventional structure employing no mirror, even though the color gamut increased from ∼75% to ∼100%.

AB - We report two optical structures for bottom-emitting white OLED. We employed RGBW color system because of its high efficiency. For RGB-subpixels, the cavity resonance was enhanced by dielectric mirror, and for W-subpixel, the mirror was removed. Optical lengths were controlled by two different methods: by the thickness of dielectric filler on top of the mirror or by the angle of oblique emission. With both methods, we were able to fabricate AMOLEDs that exhibited color gamut exceeding 100% NTSC. More importantly, the transmission of white OLED through RJG/B color filters was significantly higher (up to 50%) than that of the conventional structure employing no mirror, even though the color gamut increased from ∼75% to ∼100%.

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JO - Digest of Technical Papers - SID International Symposium

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Micro-cavity design of RGBW AMOLED for 100% color gamut

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