Chinese Journal of Liquid Crystals and Displays, Volume. 37, Issue 4, 459(2022)

Current situation and development of touch sensor technology used in flexible AMOLED display

Shi-ming SHI*, Yuan-yuan LI, Mei-zhu ZHENG, Ze-wen BO, Song ZHANG, and Da-wei WANG
Author Affiliations
  • BOE Technology Group Co.,Ltd.,Beijing 100176,China
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    Figures & Tables(11)
    Touch electrode design of self-capacitive and mutual-capacitive touch sensor
    Out-cell and On-cell touch module structure
    Several structures of out-cell touch sensor
    Electrical and optical parameters of the Gen-6 nano silver films
    Comparison of strain of each film layer under the structure of on-cell and out-cell touch sensor
    Out-cell and On-cell touch metal mesh design on RGB pixels
    Electric field diagram of finger and touch sensor under different grounding conditions
    Contrast of report point under the press of thumb
    Circuit schematic of mutual-capacitive touch sensor when finger touching
    • Table 1. Classification of out-cell flexible touch sensor

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      Table 1. Classification of out-cell flexible touch sensor

      分类方式内容
      导电材料ITO、SNW、Metal mesh、CNT、PEDOT等
      塑料基材PET、COP、CPI等
      电极结构单层、双层、架桥
      模组结构偏光片上、偏光片下、盖板集成、偏光片集成
    • Table 2. Forming technologies of metal mesh sensor

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      Table 2. Forming technologies of metal mesh sensor

      工艺技术简介代表公司/专利
      光刻法先在基材薄膜上镀一层金属,再以黄光制程制作网格

      Atmel公司

      CN201210109508.610

      纳米压印、刮涂法先在PET等基材上压印出沟槽,再刮涂纳米金属墨水

      安徽精卓CN102222538B11

      苏州大学CN20101053322812

      银盐法溴化银乳剂,光显影

      日本富士胶片

      CN101728009B13

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    Shi-ming SHI, Yuan-yuan LI, Mei-zhu ZHENG, Ze-wen BO, Song ZHANG, Da-wei WANG. Current situation and development of touch sensor technology used in flexible AMOLED display[J]. Chinese Journal of Liquid Crystals and Displays, 2022, 37(4): 459

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    Paper Information

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    Received: Dec. 29, 2021

    Accepted: --

    Published Online: Jun. 20, 2022

    The Author Email: Shi-ming SHI (shishiming@boe.com.cn)

    DOI:10.37188/CJLCD.2021-0347

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