发明名称 LIQUID CRYSTAL DISPLAY ELEMENT
摘要 PROBLEM TO BE SOLVED: To provide a liquid crystal panel which prevents an afterimage after switching off power. SOLUTION: A signal generation means 22 generates a signal when a voltage drop detection means 20 detects a voltage drop upon switching off the power. On the basis of this signal, an initialization means 23 brings each of a common electrode, a storage capacitor, and a signal line into the same potential, and also a capacitor 66 keeps electric charges of the common electrode and the storage capacitor for a predetermined period. The afterimage after power off can be prevented by forming a half-tone display state in the liquid crystal layer by a potential difference formed between the electric charges held by a liquid crystal capacitor and the storage capacitor of each pixel and a signal line. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007212689(A) 申请公布日期 2007.08.23
申请号 JP20060031600 申请日期 2006.02.08
申请人 TOSHIBA MATSUSHITA DISPLAY TECHNOLOGY CO LTD 发明人 IGARASHI KAZUAKI
分类号 G09G3/36;G02F1/133;G09G3/20 主分类号 G09G3/36
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