9‐3: BLA LTPS TFTs based μ‐LED Display with Integrated Digital Driving

Chen, Yong; Kim, Hyo‐Min; Lee, Suhui; Jeong, Duk Young; Jung, Younghun; Lee, Sang Hem; Jeong, Tak; Joo, Jinho; Hut, Jeongwook; Choi, Ji Ha; Kwak, Joon Seop; Geng, Di; Jang, Jin

doi:10.1002/sdtp.12865

Cited by 3 publications

(1 citation statement)

References 5 publications

(4 reference statements)

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“…One disadvantage of LTPO technology is the high manufacturing cost due to the need of expensive ELA process and increased number of masks for the complicated LTPS and oxide combined process. We have recently developed a low cost LTPS process using blue laser annealing (BLA) technology instead of ELA [5], and a shared gate process to reduce the number of masks required in the LTPO process, which can reduce the manufacturing cost. A few highperformance circuits using our LTPO process have also reported [6][7], which present the potentiality of this emerging technology.…”

Section: Introductionmentioning

confidence: 99%

39‐3: Distinguished Student Paper: In‐Pixel Temperature Sensor for High‐Luminance Active‐Matrix Micro‐LED Display using LTPO TFTs

Chen

Lee

Kim

et al. 2020

Symp Digest of Tech Papers

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We propose an in-pixel temperature sensor using LTPO TFTs for high luminance AM micro-LED displays. By taking advantage of the different off-current characteristics of p-type LTPS TFTs and n-type a-IGZO TFTs under temperature change, we designed and fabricated a temperature sensor consists of only LTPO TFTs without additional sensing component or material. The fabricated sensor exhibits excellent temperature sensitivity of up to 71.8 mV/℃. In addition, a 64 x 64 temperature sensor array with 3T sensing pixel and integrated gate driver has also been fabricated, which demonstrates potential approach for maxing out the performance of high-luminance AM micro-LED display with real-time in-pixel temperature monitoring.

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Section: Introductionmentioning

confidence: 99%

39‐3: Distinguished Student Paper: In‐Pixel Temperature Sensor for High‐Luminance Active‐Matrix Micro‐LED Display using LTPO TFTs

Chen

Lee

Kim

et al. 2020

Symp Digest of Tech Papers

Self Cite

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In‐pixel temperature sensor for high‐luminance active matrix micro‐light‐emitting diode display using low‐temperature polycrystalline silicon and oxide thin‐film‐transistors

et al. 2020

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We propose an in‐pixel temperature sensor using low‐temperature polycrystalline silicon and oxide (LTPO) thin‐film transistor (TFTs) for high‐luminance active matrix (AM) micro‐light‐emitting diode (LED) displays. By taking advantage of the different off‐current characteristics of p‐type LTPS TFTs and n‐type a‐IGZO TFTs under temperature change, we designed and fabricated a temperature sensor consists of only LTPO TFTs without additional sensing component or material. The fabricated sensor exhibits excellent temperature sensitivity of up to 71.8 mV/°C. In addition, a 64 × 64 temperature sensor array with 3T sensing pixel and integrated gate driver has also been fabricated, which demonstrates potential approach for maxing out the performance of high‐luminance AM micro‐LED display with real‐time in‐pixel temperature monitoring.

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Strategies for Applications of Oxide-Based Thin Film Transistors

Zhang

Xiao

et al. 2022

Electronics

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Due to the untiring efforts of scientists and researchers on oxide semiconductor materials, processes, and devices, the applications for oxide-based thin film transistors (TFTs) have been researched and promoted on a large scale. With the advantages of relatively high carrier mobility, low off-current, good process compatibility, optical transparency, low cost, and especially flexibility, oxide-based TFTs have already been adapted for not only displays (e.g., liquid crystal display (LCD), organic light emitting diode (OLED), micro-light-emitting diode (Micro-LED), virtual reality/augmented reality (VR/AR) and electronic paper displays (EPD)) but also large-area electronics, analog circuits, and digital circuits. Furthermore, as the requirement of TFT technology increases, low temperature poly-silicon and oxide (LTPO) TFTs, which combine p-type LTPS and n-type oxide TFT on the same substrate, have drawn further interest for realizing the hybrid complementary metal oxide semiconductor (CMOS) circuit. This invited review provides the current progress on applications of oxide-based TFTs. Typical device configurations of TFTs are first described. Then, the strategies to apply oxide-based TFTs for improving the display quality with different compensation technologies and obtaining higher performance integrated circuits are highlighted. Finally, an outlook for the future development of oxide-based TFTs is given.

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9‐3: BLA LTPS TFTs based μ‐LED Display with Integrated Digital Driving

Cited by 3 publications

References 5 publications

39‐3: Distinguished Student Paper: In‐Pixel Temperature Sensor for High‐Luminance Active‐Matrix Micro‐LED Display using LTPO TFTs

39‐3: Distinguished Student Paper: In‐Pixel Temperature Sensor for High‐Luminance Active‐Matrix Micro‐LED Display using LTPO TFTs

In‐pixel temperature sensor for high‐luminance active matrix micro‐light‐emitting diode display using low‐temperature polycrystalline silicon and oxide thin‐film‐transistors

Strategies for Applications of Oxide-Based Thin Film Transistors

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