2024.09.02 13:56

IMID 2024, Jeju, Korea

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IMID 2024, Jeju, Korea

August 20 - August 23, 2024 (Tue. - Fri.), ICC Jeju


KakaoTalk_20240826_184724886_05.jpg

A Novel Scan Driver Based on a-IGZO TFTs with Extra Clock Modulation for Extremely Low Power Consumption


Dongseok Kim, Hyunwoo Kim, Jinho Moon, Yongchan Kim, and Hojin Lee


Abstract

 In this paper, we propose a scan driver with an extra clock signal using amorphous indium-gallium-zinc-oxide (a-IGZO) thin-film transistors (TFTs). By employing extra clock signal modulation-based frame masking driving and constant DC driving methods, the proposed scan driver achieves extremely low power consumption while simultaneously reducing the power consumption of the display panel. The proposed novel scan driver is suitable for operating ultra-low-power displays, such as always-on displays.

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2024.09.02 13:45

IMID 2024, Jeju, Korea

조회 수 59 추천 수 0 댓글 0
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IMID 2024, Jeju, Korea

August 20 - August 23, 2024 (Tue. - Fri.), ICC Jeju


KakaoTalk_20240902_105202000_03.jpg

Novel Pixel Circuit Compensating for Sub-threshold Swing Variations and Threshold Voltage Shifts of Depletion Mode a-IGZO TFT in AMOLED Displays 


Hyunwoo Kim, Jinho Moon, Yongchan Kim, and Hojin Lee


Abstract

 We proposed a novel pixel circuit for AM-OLED displays with double gate structure based on a-IGZO TFTs. The proposed pixel circuit compensates for the operation in depletion mode and the variation in VTH and S∙S of the driving TFT.

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2024.09.02 13:40

IMID 2024, Jeju, Korea

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IMID 2024, Jeju, Korea

August 20 - August 23, 2024 (Tue. - Fri.), ICC Jeju


KakaoTalk_20240902_105530006_08.jpg

Silicon-integrated Photolithography of Small-molecule Phosphorescent Emitter for Ultrahigh-resolution Micro-OLEDs 

Ryungyu Lee, Keun-Yeong Choi, Hyukmin Kweon, Borina Ha, Changhee Lee, Soyeon Lee, Do Hwan Kim, and Hojin Lee


Abstract

 In this paper, we propose an ultrahigh-resolution organic lightemitting diodes (OLEDs) pixels patterned by conventional photolithography through by incorporating silicone into phosphorescent small-molecule networks. This siliconeintegrated phosphorescent organic light-emitting diode (SIphOLED), in which silicone molecules are homogeneously crosslinked with small-molecule light-emitting materials, can effortlessly achieve to 3,000 PPI ultrahigh-resolution patterns using the photolithography process.

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조회 수 436 추천 수 0 댓글 0
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SID Display Week 2023, San Jose, USA

May 12 - May 17, 2024 (Sun. - Fri.), San Jose Convention Center


KakaoTalk_20240618_155316141_03.jpg


Extreme Low Power a-InGaZnO TFT Scan Driver with Extra Clock Signal Modulation

Hyunwoo Kim, Jinho Moon, Dongseok Kim, and Hojin Lee


Abstract

 In this paper, a scan driver with extra clock signal using amorphous indium-gallium-zinc-oxide (a-InGaZnO) thin-film transistors (TFTs) is proposed. Extra clock signal with variable frequency modulates the pull-down unit of scan driver in order to reduce the power consumption. Proposed scan driver is suitable for operating extreme low-power displays such as always on display.



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조회 수 323 추천 수 0 댓글 0
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SID Display Week 2023, San Jose, USA

May 12 - May 17, 2024 (Sun. - Fri.), San Jose Convention Center


KakaoTalk_20240618_155316141_01.jpg


Silicone-integrated Photolithography of Small-molecule Phosphorescent Emitter for Ultrahigh-resolution Micro-OLEDs

Ryungyu Lee, Keun-Yeong Choi, Hyukmin Kweon, Borina Ha, Changhee Lee, Soyeon Lee, Seonkwon Kim, Seunghan Lee, Hyobin Ham, Hayoung Lim, Moon-Ki Jeong, Gyurim Park, Joon Hak Oh, Moon Sung Kang, Youngmin You, Jeong Ho Cho, BongSoo Kim, Do Hwan Kim, and Hojin Lee


Abstract


   In this paper, we propose an ultrahigh-resolution organic lightemitting diodes (OLEDs) pixels patterned by conventional photolithography through by incorporating silicone into phosphorescent small-molecule networks. This siliconeintegrated phosphorescent organic light-emitting diode (SIphOLED), in which silicone molecules are homogeneously crosslinked with small-molecule light-emitting materials, can effortlessly achieve to 3,000 PPI ultrahigh-resolution patterns using the photolithography process.

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