Fully digital driving circuit for TFT LCD using the concept of ramp-stop

Ya-Hsiang Tai, Chi Hao Lin*, Tsung Hsuan Ho, Yu Sheng Huang, Sheng Miao Huang, Wei Min Cho

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


A fully digital driving circuit for thin-film transistor liquid crystal display can offer benefits, including less power consumption and a shortened design schedule. Using the pulsewidth signal to control the moment to stop the ramp voltage, the pixel voltage can be set accurately. In this paper, the possible issues of power consumption, device nonuniformity, and parasitic capacitance are well-studied to prove the feasibility and advantages of the digital driving method. It is prospectively expected to substitute for the conventional analog driving method in the future.

Original languageEnglish
Article number8365146
Pages (from-to)2074-2080
Number of pages7
JournalIEEE Transactions on Industrial Electronics
Issue number3
StatePublished - 1 Mar 2019


  • Data driver
  • pulsewidth modulation (PWM)
  • ramp-stop
  • thin-film transistors (TFTs)

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