On-chip electrochromic micro display for a disposable bio-sensor chip

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7 Citations (Scopus)


This paper reports an on-chip electrochromic micro display made of polyaniline (PANi) which can be easily made on a CMOS chip. Micro-patterned PANi thin films were selectively deposited on pre-patterned microelectrodes by using electrodeposition. The optimum conditions for deposition and electrochromism were investigated. An 8-pixel on-chip micro display was made on a Si chip. The color of each PANi film could be independently but simultaneously controlled, which means any 1-byte digital data could be displayed on the display. The PANi display had a response time as fast as about 100 ms, which means the transfer data rate was as fast as 80 bits per second.

Original languageEnglish
Article number125012
JournalJournal of Micromechanics and Microengineering
Issue number12
Publication statusPublished - 2017 Nov 7


  • electrochromic display
  • on-chip display
  • polyaniline


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