发明授权
US06329974B1 Electro-optical material-based display device having analog pixel drivers
失效
具有模拟像素驱动器的基于电光材料的显示装置
- 专利标题: Electro-optical material-based display device having analog pixel drivers
- 专利标题(中): 具有模拟像素驱动器的基于电光材料的显示装置
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申请号: US09070487申请日: 1998-04-30
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公开(公告)号: US06329974B1公开(公告)日: 2001-12-11
- 发明人: Richard C. Walker , Travis N. Blalock , Neela B. Gaddis
- 申请人: Richard C. Walker , Travis N. Blalock , Neela B. Gaddis
- 主分类号: G09G336
- IPC分类号: G09G336
摘要:
The display device operates in response to an information signal and comprises analog drive circuits in a two-dimensional array of rows and columns, an analog sampling circuit that derives the analog samples from the information signal, and a sample distribution circuit. 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 corresponding to the analog drive circuits, column busses corresponding to the columns of the array, and a row selector 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 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 select the analog samples on the column busses row-wise. A grey scale is generated by modulating light using an electro-optical material. An analog sample is derived from the information signal, a drive signal is generated in response to the analog sample, and the drive signal is applied to the electro-optical material. The drive signal generated in response to the analog sample includes a sequence of a first temporal portion having a time duration that has a pre-determined relationship to the analog sample, and a second temporal portion that is the temporal complement of the first.
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