Patent ID: 7006071
Filing Date: 2006-02-28
Classification: G09G

Abstract:
1. A driving device for driving a passive module according to an input signal including a plurality of digital pixel data which are associated with a plurality of to-be-scanned pixels of the passive module, the driving device comprising: a digital-to-analog converting unit for outputting a plurality of analog pixel data in series according to the input signal including the digital pixel data, the digital-to-analog converting unit comprising: a data buffer for buffering the digital pixel data and outputting the digital pixel data; a voltage level converter coupled to the data buffer, for adjusting the voltage level of the digital pixel data output from the data buffer and outputting an adjusted digital pixel data; and a digital-to-analog converter coupled to the voltage level converter, for converting the adjusted digital pixel data into a plurality of analog pixel data, and outputting the analog pixel data in series; an analog buffer including a plurality of analog buffer units, each analog buffer unit coupled to the digital-to-analog converting unit for sampling and temporarily storing the analog pixel data in sequence and for outputting the stored analog pixel data in parallel; a shift register coupled to the analog buffer, for controlling the analog buffer to store the analog pixel data; and an output buffer unit including a plurality of driving sub-units for receiving the analog pixel data from the analog buffer in parallel, wherein the driving sub-units are named as 1-st, 2-nd, . . . , i-th, . . . j-th, . . . N-th driving sub-units, N, i and j are integers, i, j≦N, i≠j, and the i-th driving sub-unit comprises: wherein signals outputted from the output buffer unit to coupled to the to-be-scanned pixels of the passive module.