发明名称 THIN FILM TRANSISTOR TYPE LIQUID CRYSTAL DISPLAY DEVICE
摘要 <p>PURPOSE:To eliminate a DC component between the drain electrode and counter electrode of a thin film transistor(TFT) type liquid crystal display and to reduce a drop in picture element electrode due to the parasitic capacity between the gate and source. CONSTITUTION:A shield electrode is formed over the entire surface of the drain electrode 2 of the TFT except the connection part between the source electrode 4 and picture element electrode 5 across an insulating film. Then the shield electrode 7 is connected electrically to a counter electrode. Consequently, the drain electrode 2 and counter electrode are disconnected electrically by the shield electrode, so no DC component is generated between them. Further, accumulation capacity is formed between the picture element electrode 5 and shield electrode, so the drop in picture element electrode voltage due to the parasitic capacity between the gate and source is reduced.</p>
申请公布号 JPH04318523(A) 申请公布日期 1992.11.10
申请号 JP19910085554 申请日期 1991.04.17
申请人 OKI ELECTRIC IND CO LTD 发明人 OGURA SHIGEKI;NISHIKI TAMAHIKO;YOSHIZAWA YOSHIYO
分类号 G02F1/133;G02F1/1343;G02F1/136;G02F1/1368;H01L21/336;H01L27/12;H01L29/78;H01L29/786 主分类号 G02F1/133
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