Publication IEICE TRANSACTIONS on ElectronicsVol.E90-CNo.5pp.1021-1026 Publication Date: 2007/05/01 Online ISSN: 1745-1353 DOI: 10.1093/ietele/e90-c.5.1021 Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Section on Fundamentals and Applications of Advanced Semiconductor Devices) Category: LSI Applications Keyword: AMOLED, current driver LSI, large size, high resolution,
Full Text: PDF>>
Summary: 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 0 µA to 290 µA. 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 16.8 mm3.6 mm. 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 (1280RGB768) AMOLED displays.