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Data and gate line sharing methods for low-cost and high-pixel density TFT-LCDs

Data and gate line sharing methods for low-cost and high-pixel density TFT-LCDs

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New pixel circuit and driving schemes to reduce the number of both data lines and gate lines to half of the traditional TFT-LCDs are proposed. This idea contributes to cost-down of TFT-LCDs by halving the number of the required data driver ICs and gate driver ICs and supports higher-resolution TFT-LCDs by doubling the pitch of data lines.

Inspec keywords: thin film circuits; smart pixels; thin film transistors; driver circuits; liquid crystal displays

Other keywords: pixel circuit; pixel density TFT-LCD; data lines; gate line sharing methods; data driver IC; gate driver IC

Subjects: Other field effect devices; Convertors; Thin film circuits; Display equipment and systems; Liquid crystal devices

References

    1. 1)
      • R. Watanabe , O. Tomita . Active-matrix LCDs for mobile telephones in Japan. Inf. Disp. , 30 - 35
    2. 2)
      • Kodate, M., Kanazaki, E.: `Pixel-level data-line multiplexing for low cost/high resolution AMLCDs', SID'02, 2002, Boston, MA, USA, p. 1009–1011.
    3. 3)
      • Sakamoto, M.: `Half-column-line driving method for low-power and low-cost TFT-LCDs', SID'97, 1997, Boston, MA, USA, p. 387–390.
    4. 4)
      • Sung, Y.-C., Choi, B.-D., Kwon, O.-K.: `A shared column-line driving method for high pixel density', SID'02, 2002, Boston, MA, USA, p. 913–915.
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