The Experts below are selected from a list of 2199 Experts worldwide ranked by ideXlab platform

Yu Jia - One of the best experts on this subject based on the ideXlab platform.

  • visible quantum dot light emitting diodes with simultaneous high brightness and efficiency
    Nature Photonics, 2019
    Co-Authors: Huaibin Shen, Qiang Gao, Yanbin Zhang, Yue Lin, Qingli Lin, Ling Chen, Zaiping Zeng, Yu Jia
    Abstract:

    Quantum dot light-emitting diodes are promising light sources for applications in displays. However, to date, there have been no reports of devices that simultaneously offer both high brightness and high external quantum efficiency. Here, we report red, green and blue quantum dot light-emitting diodes based on CdSe/ZnSe core/shell structures that have these attributes. We demonstrate devices with maximum external quantum efficiencies of 21.6%, 22.9% and 8.05% for red, green and blue colours with corresponding brightness of 13,300 cd m–2, 52,500 cd m–2 and 10,100 cd m–2. The devices also offer Peak Luminance of 356,000 cd m–2, 614,000 cd m–2 and 62,600 cd m–2, respectively. We postulate that this high performance is due to the use of Se throughout the core/shell regions and the existence of alloyed bridging layers at the core/shell interfaces. This study suggests that in the future visible quantum dot light-emitting diodes will also be suitable for lighting applications. Red, green and blue CdSe/ZnSe quantum dot light-emitting diodes combine efficient operation with high brightness.

Takako Miyake - One of the best experts on this subject based on the ideXlab platform.

  • organic led full color passive matrix display
    Journal of Luminescence, 2000
    Co-Authors: Hirofumi Kubota, Satoshi Miyaguchi, Shinichi Ishizuka, Takeo Wakimoto, Jun Funaki, Yoshinori Fukuda, Teruichi Watanabe, Hideo Ochi, Tsuyoshi Sakamoto, Takako Miyake
    Abstract:

    Abstract A full color 5.2 in 1/4 VGA passive-matrix organic LED display has bee developed. The display has 320(×3)×240 pixels with an equivalent pixel size of 0.33×0.33 mm2, white Peak Luminance of over 150 cd/m2, and power consumption of 6 W. It uses a cathode patterning method with cathode separators and an RGB emitters selective deposition method by a high accuracy mask moving system. Passivation film for OLED has been also developed. It turned out that the EL characteristics remained almost identical and the dark spot growth were negligible for practical use after the storage tests.

Hirofumi Kubota - One of the best experts on this subject based on the ideXlab platform.

  • organic led full color passive matrix display
    Journal of Luminescence, 2000
    Co-Authors: Hirofumi Kubota, Satoshi Miyaguchi, Shinichi Ishizuka, Takeo Wakimoto, Jun Funaki, Yoshinori Fukuda, Teruichi Watanabe, Hideo Ochi, Tsuyoshi Sakamoto, Takako Miyake
    Abstract:

    Abstract A full color 5.2 in 1/4 VGA passive-matrix organic LED display has bee developed. The display has 320(×3)×240 pixels with an equivalent pixel size of 0.33×0.33 mm2, white Peak Luminance of over 150 cd/m2, and power consumption of 6 W. It uses a cathode patterning method with cathode separators and an RGB emitters selective deposition method by a high accuracy mask moving system. Passivation film for OLED has been also developed. It turned out that the EL characteristics remained almost identical and the dark spot growth were negligible for practical use after the storage tests.

  • organic led full color passive matrix display
    Journal of The Society for Information Display, 1999
    Co-Authors: Satoshi Miyaguchi, Shinichi Ishizuka, Takeo Wakimoto, Jun Funaki, Yoshinori Fukuda, Hirofumi Kubota, Kenji Yoshida, Teruichi Watanabe, Hideo Ochi, Tsuyoshi Sakamoto
    Abstract:

    — A full-color 5.2-inch 1/4-VGA passive-matrix organic LED display has been developed, adopting selective deposition for the different emitting materials. The display features 320 (×3) × 240 pixels with an equivalent pixel size of 0.33 × 0.33 mm, white Peak Luminance of over 150 cd/m2, and power consumption of 6 W.

Tsuyoshi Sakamoto - One of the best experts on this subject based on the ideXlab platform.

  • organic led full color passive matrix display
    Journal of Luminescence, 2000
    Co-Authors: Hirofumi Kubota, Satoshi Miyaguchi, Shinichi Ishizuka, Takeo Wakimoto, Jun Funaki, Yoshinori Fukuda, Teruichi Watanabe, Hideo Ochi, Tsuyoshi Sakamoto, Takako Miyake
    Abstract:

    Abstract A full color 5.2 in 1/4 VGA passive-matrix organic LED display has bee developed. The display has 320(×3)×240 pixels with an equivalent pixel size of 0.33×0.33 mm2, white Peak Luminance of over 150 cd/m2, and power consumption of 6 W. It uses a cathode patterning method with cathode separators and an RGB emitters selective deposition method by a high accuracy mask moving system. Passivation film for OLED has been also developed. It turned out that the EL characteristics remained almost identical and the dark spot growth were negligible for practical use after the storage tests.

  • organic led full color passive matrix display
    Journal of The Society for Information Display, 1999
    Co-Authors: Satoshi Miyaguchi, Shinichi Ishizuka, Takeo Wakimoto, Jun Funaki, Yoshinori Fukuda, Hirofumi Kubota, Kenji Yoshida, Teruichi Watanabe, Hideo Ochi, Tsuyoshi Sakamoto
    Abstract:

    — A full-color 5.2-inch 1/4-VGA passive-matrix organic LED display has been developed, adopting selective deposition for the different emitting materials. The display features 320 (×3) × 240 pixels with an equivalent pixel size of 0.33 × 0.33 mm, white Peak Luminance of over 150 cd/m2, and power consumption of 6 W.

Qiang Gao - One of the best experts on this subject based on the ideXlab platform.

  • visible quantum dot light emitting diodes with simultaneous high brightness and efficiency
    Nature Photonics, 2019
    Co-Authors: Huaibin Shen, Qiang Gao, Yanbin Zhang, Yue Lin, Qingli Lin, Ling Chen, Zaiping Zeng, Yu Jia
    Abstract:

    Quantum dot light-emitting diodes are promising light sources for applications in displays. However, to date, there have been no reports of devices that simultaneously offer both high brightness and high external quantum efficiency. Here, we report red, green and blue quantum dot light-emitting diodes based on CdSe/ZnSe core/shell structures that have these attributes. We demonstrate devices with maximum external quantum efficiencies of 21.6%, 22.9% and 8.05% for red, green and blue colours with corresponding brightness of 13,300 cd m–2, 52,500 cd m–2 and 10,100 cd m–2. The devices also offer Peak Luminance of 356,000 cd m–2, 614,000 cd m–2 and 62,600 cd m–2, respectively. We postulate that this high performance is due to the use of Se throughout the core/shell regions and the existence of alloyed bridging layers at the core/shell interfaces. This study suggests that in the future visible quantum dot light-emitting diodes will also be suitable for lighting applications. Red, green and blue CdSe/ZnSe quantum dot light-emitting diodes combine efficient operation with high brightness.