Studies On ACEL Display Panel's Driving Circuit Base On Digital Clock

Nowadays, the technique of information displays acts as an important interface for mankind obtaining information and the effects of Flat Panel Displays (FPDs) are significant more and more. As an important member of FPDs, the technique of EL(electromulinescent) attracts worldwide attention in the fields of science and industry due to its many merits of light weight, low cost, broad visual angle, high response speed, spontaneous light-emitting, high brightness and efficiency, etc. It gradually becomes the international cutting-edge project and the focus of international competition which need the cooperation and research of many intercrossed branch of science.By the use of novel materials, suitable structures and process technologies, and also by the efforts of world known companies, the performances of EL are made significant improvement reaching to the level of commercialization.This paper mainly emphasized on the influence of driver circuit to powder electromulinescent. A lot of experimentations manifestate the EL's luminance has relation to the EL's driver voltage,and also has relation to the driver voltage frequency. So the design of the driving circuit are the important factor in the EL displays.We have made a EL digital clock to research into the particularity of EL.The experimentation project include five parts,for example,EL Panel,driver circuit,high voltage power circuit,signal output circuit,signal output power circuit.The research's main point is to find out the relationship between high voltage power circuit and EL display panel characters,From the releation we found the suitable driver circuit's parameter.From the EL principle,we know the relation between driver voltage and luminance is L = A?(B/v).In addition,The El's ageing problem are deeply releated with the driving circuit's voltage and the driving circuit's frequency.In my research.We optimized the driving circuit ,for example the parameter of the voltage and the frequency which deeply influence the EL's age and luminance.In addition the EL digital clock which we made are spontaneous light-emitting.So we offer a new choice for timing in the special situation(for example darkroom).