10-bit Current Driver LSI for Large-Size and High-Resolution Active Matrix Organic Light Emitting Diode Displays(Session 4 Silicon Devices II,AWAD2006)
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We present the 10-bit current driver LSI with 2-set current digital-to-analog converters (DACs) and output channel current sample and hold (S/H) circuits for large-size and high-resolution active matrix organic light emitting diode (AMOLED) display applications. This current driver LSI has 300 output channels and the output current ranges from 0μA to 290μA. The maximum output current level can be controlled by 2-bit control signals because the maximum output current level depends on display size and resolution. The chip was fabricated using 0.65μm BiCMOS process and characterized. The chip size is 16.8mm×3.6mm. Experimental results show that the output current DNL is less than 0.4 LSB and that INL is less than 1.5 LSB. This is good enough to apply 15.5 inch WXGA(1280×RGB×768)AMOLED displays.
- 社団法人電子情報通信学会の論文
- 2006-06-26
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