Performance and stability analysis of negative capacitor in OLED driving circuit

Chang Hoon Shim, Reiji Hattori

Research output: Contribution to journalArticlepeer-review


We have demonstrated in the previous work that the negative capacitor can effectively prevent the signal delay due to the parasitic capacitance in the current programmed OLED display. However, there were some problems in the real panel application. Therefore, we discussed the difference between the simulation and measurement results and proposed the methods to improve the negative capacitor performance. We also analyzed the stability of negative capacitor considering the parasitic resistance as well as the capacitance. Especially in the case of large display where the data line has large parasitic resistance, the negative capacitance value should be smaller than that of parasitic capacitance or the delay components should be inserted in negative capacitor for stability.

Original languageEnglish
Pages (from-to)59-64
Number of pages6
JournalResearch Reports on Information Science and Electrical Engineering of Kyushu University
Issue number2
Publication statusPublished - Sep 1 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Electrical and Electronic Engineering


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