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1. 发明授权

US6107980A Cell circuit for active matrix liquid crystal displays using high polarization, analog response liquid crystals 失效
标题翻译：使用高极化，模拟响应液晶的有源矩阵液晶显示器的单元电路
公开(公告)号：US6107980A
公开(公告)日：2000-08-22
申请号：US31533
申请日：1998-02-27
申请人： Anno Hermanns , Geoffrey L. Barrows , Banhalli R. Ratna
发明人： Anno Hermanns , Geoffrey L. Barrows , Banhalli R. Ratna
IPC分类号： G09G3/36 , G09G3/84
CPC分类号： G09G3/3648 , G09G3/3659 , G09G2300/0809
摘要： An active matrix circuit for compact, high resolution reflective liquid ctal displays includes a low quiescent current, low output impedance MOS transistor amplifier produced in a CMOS process. A voltage controlled input switch effects the voltage refresh of the active matrix cell by passing a data voltage to the input of the transistor amplifier when a control voltage pulse is present on the input switch control line. All active matrix cells in a given row use the same input switch control line, and all active matrix cells in a given column access the same data input line. Refresh of the active matrix cell voltage terminates when the input switch is opened, storing the data voltage on the input node capacitance of the amplifier. The active matrix circuit is particularly addressed to liquid crystal devices having fast, analog response liquid crystals with large molecular polarizations such as in the Electroclinic Liquid Crystals (ELC). Including such an amplifier in each active matrix cell facilitates delivery of the large charge required to switch such liquid crystals without incurring a concomitant drop in pixel voltage, as encountered with other active matrix cell circuits.
摘要翻译：用于紧凑型高分辨率反射型液晶显示器的有源矩阵电路包括以CMOS工艺制造的低静态电流，低输出阻抗MOS晶体管放大器。当控制电压脉冲存在于输入开关控制线上时，电压控制输入开关通过将数据电压传递到晶体管放大器的输入来实现有源矩阵单元的电压刷新。给定行中的所有有源矩阵单元格使用相同的输入开关控制线，给定列中的所有有源矩阵单元格访问相同的数据输入行。当输入开关打开时，有源矩阵单元电压的刷新结束，将数据电压存储在放大器的输入节点电容上。有源矩阵电路特别涉及具有快速模拟响应液晶（具有大分子极化的液晶装置），例如在电解液晶体（ELC）中。在每个有源矩阵单元中包括这样的放大器有助于传递转换这种液晶所需的大电荷，而不会像其他有源矩阵单元电路一样遇到像素电压的伴随下降。

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