A mono color organic light emitting diode matrix display was reported,which has been developed based on a long life green OLED cell with 96×60 pixels,an equivalent pixel size of 0 4×0 4mm 2 and a designed dr...A mono color organic light emitting diode matrix display was reported,which has been developed based on a long life green OLED cell with 96×60 pixels,an equivalent pixel size of 0 4×0 4mm 2 and a designed driving circuit.A good green color image could be obtained,neither non uniformity caused by the parasitic capacitance nor cross talk between pixels occurred.The peak luminance at the duty cycle 1/64 was 100cd/m 2,and power consumption was 0 6W. The display panel consists of a glass substrate on which ITO anodes are formed in vertical stripes with a width of 0 4mm and a gap of 0 1mm by photolithography,then the buffer layer,hole transporting layer,electron transporting layers were successively deposited,Mg∶Ag as a cathode was evaporated and formed in horizontal stripes with a width of 0 4mm and a gap of 0 1mm by a shadow mask.Then the panel was encapsulated and the electrodes of the display were connected with the driving circuit. For the driving circuit,a line successive scanning and a constant current driving were adopted.It was designed to eliminate the cross talk between the pixels,a good green color image was realized.展开更多
The major features of the display technologies for 3G cellular phone are reviewed. The comparison between their potential candidates for 3G cellular phone is given, and a detailed discussion is made on passive matrix ...The major features of the display technologies for 3G cellular phone are reviewed. The comparison between their potential candidates for 3G cellular phone is given, and a detailed discussion is made on passive matrix organic electroluminescent display technology. A novel method to improve display contrast ratio is presented. Finally several 3G phone set prototypes with OLED display panels are given as well as the market forecast.展开更多
文摘A mono color organic light emitting diode matrix display was reported,which has been developed based on a long life green OLED cell with 96×60 pixels,an equivalent pixel size of 0 4×0 4mm 2 and a designed driving circuit.A good green color image could be obtained,neither non uniformity caused by the parasitic capacitance nor cross talk between pixels occurred.The peak luminance at the duty cycle 1/64 was 100cd/m 2,and power consumption was 0 6W. The display panel consists of a glass substrate on which ITO anodes are formed in vertical stripes with a width of 0 4mm and a gap of 0 1mm by photolithography,then the buffer layer,hole transporting layer,electron transporting layers were successively deposited,Mg∶Ag as a cathode was evaporated and formed in horizontal stripes with a width of 0 4mm and a gap of 0 1mm by a shadow mask.Then the panel was encapsulated and the electrodes of the display were connected with the driving circuit. For the driving circuit,a line successive scanning and a constant current driving were adopted.It was designed to eliminate the cross talk between the pixels,a good green color image was realized.
文摘The major features of the display technologies for 3G cellular phone are reviewed. The comparison between their potential candidates for 3G cellular phone is given, and a detailed discussion is made on passive matrix organic electroluminescent display technology. A novel method to improve display contrast ratio is presented. Finally several 3G phone set prototypes with OLED display panels are given as well as the market forecast.
