JP4084274B2 - 液晶表示器の駆動方法および駆動回路 - Google Patents
液晶表示器の駆動方法および駆動回路 Download PDFInfo
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- JP4084274B2 JP4084274B2 JP2003345222A JP2003345222A JP4084274B2 JP 4084274 B2 JP4084274 B2 JP 4084274B2 JP 2003345222 A JP2003345222 A JP 2003345222A JP 2003345222 A JP2003345222 A JP 2003345222A JP 4084274 B2 JP4084274 B2 JP 4084274B2
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- Prior art keywords
- liquid crystal
- signal
- capacitor
- storage capacitor
- transistor
- Prior art date
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- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
104 映像信号
106 直流信号
110 トランジスタ
112 内部電圧
120 液晶コンデンサ
130 蓄積用コンデンサ
202 走査信号
204 映像信号
206 直流信号
210 液晶駆動用電位差
212 内部電圧
302 走査信号
304 映像信号
306 交流信号
310 トランジスタ
312 内部電圧
320 液晶コンデンサ
330 蓄積用コンデンサ
402 走査信号
404 映像信号
406 交流信号
410 液晶駆動用電位差
412 内部電圧
502 走査信号
504 映像信号
506 第一交流信号
508 第二交流信号
510 トランジスタ
512 内部電圧
520 液晶コンデンサ
530 蓄積用コンデンサ
602 走査信号
604 映像信号
606 第一交流信号
608 第二交流信号
610 液晶駆動用電位差
612 内部電圧
620 蓄積用コンデンサの電位差
630 直流オフセット電圧
81 ドーピング量変更前のしきい電圧値
82 ドーピング量変更前の蓄積コンデンサの特性曲線
83 ドーピング量変更後の蓄積コンデンサの特性曲線
84 ドーピング量変更後のしきい電圧値
Claims (2)
- 複数の画素(pixel)から構成され、各画素はトランジスタと蓄積用コンデンサと液晶コンデンサとを有する液晶表示器において、前記トランジスタに走査信号を供給して該トランジスタのオン/オフを制御することと、前記トランジスタがオンであったとき、互いに接続されている液晶コンデンサの第一端と蓄積用コンデンサの第一端とに映像信号を供給することと、 液晶コンデンサの第一端に対応する第二端と、蓄積用コンデンサの第一端に対応する第二端とに対して、第一交流信号と第二交流信号とをそれぞれ供給し、第一交流信号と第二交流信号が互いに同期でかつ同じ振幅を有し、第二交流信号は、第一交流信号にない直流オフセット(DC offset)電圧を有し、前記直流オフセット電圧値は少なくとも、前記蓄積用コンデンサの等価薄膜トランジスタのしきい電圧値と液晶駆動用電位差の最大値との和より大きく、前記蓄積用コンデンサは、自己位置合わせ製造技術(self−aligned)で完成され、非線形コンデンサであることを特徴とする液晶表示器の駆動方法。
- 前記蓄積用コンデンサのしきい電圧値は、トランジスタのしきい電圧値と異なることを特徴とする請求項1に記載の液晶表示器の駆動方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003345222A JP4084274B2 (ja) | 2003-10-03 | 2003-10-03 | 液晶表示器の駆動方法および駆動回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003345222A JP4084274B2 (ja) | 2003-10-03 | 2003-10-03 | 液晶表示器の駆動方法および駆動回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005114786A JP2005114786A (ja) | 2005-04-28 |
JP4084274B2 true JP4084274B2 (ja) | 2008-04-30 |
Family
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JP2003345222A Expired - Fee Related JP4084274B2 (ja) | 2003-10-03 | 2003-10-03 | 液晶表示器の駆動方法および駆動回路 |
Country Status (1)
Country | Link |
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JP (1) | JP4084274B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7652649B2 (en) * | 2005-06-15 | 2010-01-26 | Au Optronics Corporation | LCD device with improved optical performance |
TWI521498B (zh) * | 2014-02-17 | 2016-02-11 | 友達光電股份有限公司 | 畫素電路及其驅動方法 |
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2003
- 2003-10-03 JP JP2003345222A patent/JP4084274B2/ja not_active Expired - Fee Related
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Publication number | Publication date |
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JP2005114786A (ja) | 2005-04-28 |
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