Novel high voltage driving circuit for TFEL display

Author

Huan, Xuan ; Huang, Shuping ; Ran, Feng ; Ji, Huijie

Author_Institution

Technol. Center, Shanghai Feilo Co., Ltd., Shanghai, China

fYear

2011

fDate

27-29 May 2011

Firstpage

338

Lastpage

341

Abstract

TFEL display is a capacitive display driven at high voltage and it requires a high-voltage, large-current driving circuit. A novel driving circuit is proposed in this paper based on the photoelectric features of TFEL. It includes the core controller circuit based on FPGA, the column and row driving circuits, the high voltage supply circuit and the TFEL display. Output range of column driver various in 0~65V while the row driver alternatively output +90V and -130V. Experimental result shows that the proposed driving circuit is capable of driving a 120×480 TFEL of 128 gray scale levels at 100Hz and technology problems due to high voltages are successfully solved.

Keywords

colour displays; driver circuits; electroluminescent displays; field programmable gate arrays; thin film devices; FPGA; TFEL display; capacitive display; column driving circuit; core controller circuit; frequency 100 Hz; high voltage supply circuit; high-voltage large-current driving circuit; photoelectric feature; row driving circuit; thin film electroluminescent display; voltage -130 V; voltage 0 V to 65 V; voltage 90 V; Drives; Field programmable gate arrays; Switches; FPGA; TFEL display; driving method; unsymmetrical driving method;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Software and Networks (ICCSN), 2011 IEEE 3rd International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-61284-485-5

Type

conf

DOI

10.1109/ICCSN.2011.6014735

Filename

6014735