| 发明名称 | Sample and hold circuit and source driver including the same | ||
| 摘要 | A sample and hold circuit may include: a main sample and hold circuit configured to sample and hold pixel information of an organic light emitting diode (OLED) cell, and output a first output signal; and a dummy sample and hold circuit configured to sample and hold a reference voltage in synchronization with the main sample and hold circuit, and output a second output signal for offsetting a switching noise signal contained in the first output signal. | ||
| 申请公布号 | US9412308(B2) | 申请公布日期 | 2016.08.09 |
| 申请号 | US201414499376 | 申请日期 | 2014.09.29 |
| 申请人 | SILICON WORKS CO., LTD. | 发明人 | Min Kyung Jik;Jeon Hyun Kyu;Jung Yong Ik;Cho Hyun Ho;Kim Young Bok |
| 分类号 | G11C27/02;G09G3/32 | 主分类号 | G11C27/02 |
| 代理机构 | Kile Park Reed & Houtteman PLLC | 代理人 | Kile Park Reed & Houtteman PLLC |
| 主权项 | 1. A sample and hold circuit comprising: a main sample and hold circuit configured to sample and hold pixel information of an organic light emitting diode (OLED) cell, and output a first output signal; and a dummy sample and hold circuit configured to sample and hold a reference voltage in synchronization with the main sample and hold circuit, and output a second output signal for offsetting a switching noise signal contained in the first output signal, wherein the main sample and hold circuit comprises: a main sampling capacitor configured to sample the pixel information; anda main charge sharing unit configured to hold the sampled pixel information sampled by the main sampling capacitor. | ||
| 地址 | Daejeon-Si KR | ||