Electro-optical material-based display device having analog pixel drivers

摘要

The display device (100) operates in response to an information signal and comprises analog drive circuits (e.g.114) in a two-dimensional array (102) of rows and columns, an analog sampling circuit (122) that derives the analog samples (e.g.125) from the information signal, and a sample distribution circuit (124). The sample distribution circuit receives the analog samples from the analog sampling circuit and distributes them to the analog drive circuits. The sample distribution circuit includes input gates (e.g.152) corresponding to the analog drive circuits, column busses (e.g.131<Sub>2</Sub>) corresponding to the columns of the array, and a row selector (134) having outputs corresponding to the rows of the array. The column busses distribute the analog samples column-wise to the analog drive circuits. The input gates selectively connect the analog drive circuits to the column busses. Each output of the row selector is connected to control the input gates in one of the rows. The row selector sequentially opens the input gates in the rows to perform a row-wise selection of the analog samples on the column busses.

The sample distribution circuit additionally comprises a second row selector (134R) having outputs (133R2) corresponding to ones of the rows of the array, each of the outputs being connected to control the input gates of a second sequence of the input gates (185,186) in the one of the rows of the array, the second row selector and the first row selector collectively performing the row-wise selection of the analog samples on the column busses.