Optics and Precision Engineering, Volume. 32, Issue 24, 3580(2024)

High precision correction and positioning of the substrate for display ink printing

Ning AN... Hai BI, Yi LI and Cheng XU* |Show fewer author(s)
Author Affiliations
  • Ji Hua Laboratory, Foshan528200, China
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    Figures & Tables(18)
    System hardware module layout top view
    Workflow of vision system
    Calibration board array pattern
    Calculate the camera mounting angle
    Multi-camera installation position calibration structure
    Multi-camera installation position calibration principle calculation
    Flow chart of substrate correction and positioning algorithm
    Substrate plane coordinate system
    E-paper display ink printing filling device
    Different point light sources illuminate the Mark
    Camera is mounted for deflection angle calibration
    Algorithm extracts the center coordinates of Mark
    Angle deviation of the rotary table rotating at 20"
    Ink drop print pixel pit test
    • Table 1. Multi-camera installation position deviation

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      Table 1. Multi-camera installation position deviation

      Number of

      experiments

      X direction

      deviation

      Y direction

      deviation

      1-2 091.8355 115.4
      2-2 093.1355 114.8
      3-2 091.5355 116.4
      4-2 094.2355 117.5
      5-2 094.4355 113.9
      6-2 092.6355 114.5
      7-2 093.4355 113.1
      8-2 094.6355 115.8
    • Table 2. Angle deviation of the rotary table rotating at 200"

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      Table 2. Angle deviation of the rotary table rotating at 200"

      Number of

      experiments

      Algorithm calculation angleAbsolute error

      Number of

      experiments

      Algorithm calculation angleAbsolute error
      1199.31-0.6913199.47-0.53
      2200.820.8214200.990.99
      3199.84-0.1615200.970.97
      4200.860.8616200.960.96
      5200.390.3917199.92-0.08
      6200.910.9118200.930.93
      7200.00019201.071.07
      8200.350.3520199.72-0.28
      9200.960.9621200.870.87
      10201.471.4722200.330.35
      11200.480.4823199.82-0.18
      12199.98-0.0224200.800.80
    • Table 3. Ink drop printing position deviation

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      Table 3. Ink drop printing position deviation

      Pixel pit center coordinatesInk drop center coordinates

      X

      deviation

      Y

      deviation

      (42.63,39.15)(40.89,37.37)1.741.78
      (41.76,115.71)(40.89,114.80)0.870.91
      (41.76,193.14)(40.02,192.23)1.740.91
      (41.76,270.57)(40.02,269.66)1.740.91
      (40.89,347.13)(40.02,347.09)0.870.04
      (40.89,424.56)(40.02,423.65)0.870.91
      (40.89,501.99)(39.15,501.08)1.740.91
      (40.02,578.55)(39.15,578.51)0.870.04
      (40.02,655.98)(39.15,655.07)0.870.91
      (40.02,733.41)(38.28,732.50)1.740.91
      (40.02,810.84)(38.28,809.06)1.741.78
    • Table 4. Ink drop printing repeat localization deviation

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      Table 4. Ink drop printing repeat localization deviation

      Pixel pit center coordinatesInk drop center coordinates

      X

      deviation

      Y

      deviation

      (42.63,39.15)(40.89,37.37)1.741.78
      (41.76,39.15)(41.76,37.37)01.78
      (42.63,40.02)(41.76,38.24)0.871.78
      (42.63,39.15)(40.89,37.37)1.741.78
      (41.76,40.02)(40.02,38.24)1.741.78
      (40.89,40.02)(40.02,39.11)0.870.91
      (40.89,39.15)(39.15,38.24)1.740.91
      (40.02,39.15)(40.89,37.37)-0.871.78
      (41.76,39.15)(40.89,38.24)0.870.91
      (40.02,40.02)(40.02,39.11)00.91
      (40.89,40.02)(39.15,39.11)1.740.91
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    Ning AN, Hai BI, Yi LI, Cheng XU. High precision correction and positioning of the substrate for display ink printing[J]. Optics and Precision Engineering, 2024, 32(24): 3580

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    Paper Information

    Category:

    Received: Jul. 11, 2014

    Accepted: --

    Published Online: Mar. 11, 2025

    The Author Email: Cheng XU (xucheng@jihualab. com)

    DOI:10.37188/OPE.20243224.3580

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