JP2000267635A5 - - Google Patents
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- JP2000267635A5 JP2000267635A5 JP1999070956A JP7095699A JP2000267635A5 JP 2000267635 A5 JP2000267635 A5 JP 2000267635A5 JP 1999070956 A JP1999070956 A JP 1999070956A JP 7095699 A JP7095699 A JP 7095699A JP 2000267635 A5 JP2000267635 A5 JP 2000267635A5
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- liquid crystal
- electrode
- switching element
- crystal device
- holding means
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 5
- 238000005286 illumination Methods 0.000 claims 7
- 239000011159 matrix material Substances 0.000 claims 2
- 230000002123 temporal effect Effects 0.000 claims 1
Description
【発明の名称】液晶装置及び液晶装置の駆動方法Patent application title: Liquid Crystal Device and Driving Method of Liquid Crystal Device
Claims (6)
前記走査ドライバは、前記第１のスイッチング素子をオフ状態として、前記第２のスイッチング素子にゲートパルスを線順次に印加し、線順次走査が終了した後、１フレームまたは１フィールド毎に前記第１のスイッチング素子に一括書き込み信号を印加し、
前記信号ドライバは前記ゲートパルスに同期して、前記データ電極に映像信号を印加するものであって、
さらに前記走査ドライバ、前記信号ドライバ及び前記照明手段に接続され、これらを連携動作させる制御回路を有し、
前記制御回路は、前記１フレームまた１フィールドの間に、３０〜７０％の時間開口率で点灯するように前記照明手段を制御することを特徴とする液晶装置。Pixel electrodes arranged in a matrix to constitute a plurality of pixels, voltage holding means connected to the pixel electrodes for holding voltages according to image data, and arranged between the voltage holding means and the pixel electrodes First switching element, a second switching element connected to the voltage holding means and the data electrode, a scanning driver and a signal driver respectively connected to the gate electrode and the data electrode, the pixel electrode and the opposing electrode A liquid crystal device comprising: a liquid crystal element comprising liquid crystal disposed between electrodes; and illumination means for illuminating the liquid crystal element
The scan driver applies a gate pulse to the second switching element line-sequentially with the first switching element in the OFF state, and after the line-sequential scanning is completed, the first switching element is applied every one frame or one field. Apply a batch write signal to the switching element of
The signal driver applies a video signal to the data electrode in synchronization with the gate pulse.
And a control circuit connected to the scanning driver, the signal driver, and the illumination unit to operate in cooperation with each other.
The liquid crystal device according to claim 1, wherein the control circuit controls the lighting means to light up at a time aperture ratio of 30 to 70% during the one frame or one field.
ことを特徴とする請求項１に記載の液晶装置。It has an adjustment means which adjusts the said time aperture ratio according to a display image in the range of 30 to 70%,
The liquid crystal device according to claim 1,
前記スイッチング素子がオフの状態で前記電圧保持手段に任意の電圧を順に印加し、
該電圧の印加が終了した時点で前記スイッチング素子を一括してオンにして前記電圧保持手段のそれぞれに保持されていた該電圧を前記第２電極にそれぞれ印加して、前記第１電極と前記第２電極との電位差によって前記液晶を画素毎に駆動して前記液晶素子に一の画像を表示させ、
該一の画像を表示している間に、３０〜７０％の時間開口率で前記照明手段による照明を行うと共に、前記スイッチング素子をオフにした状態で前記電圧保持手段に次の画像データについての電圧を順に印加する、
ことを特徴とする液晶装置の駆動方法。A first electrode and a second electrode which are arranged in a matrix so as to face each other to constitute a plurality of pixels, a voltage holding means connected to the second electrode and holding an arbitrary voltage, the voltage holding means and the second A switching element interposed between the electrode and a liquid crystal element comprising liquid crystal disposed between the first electrode and the second electrode; and a liquid crystal element disposed so as to face the liquid crystal element A driving method of a liquid crystal device for driving the liquid crystal device, the lighting device comprising: illumination means for illuminating;
An arbitrary voltage is sequentially applied to the voltage holding means while the switching element is off,
When the application of the voltage is completed, the switching elements are turned on at once, and the voltages held in the voltage holding means are respectively applied to the second electrode, and the first electrode and the The liquid crystal is driven for each pixel by the potential difference with the two electrodes to display one image on the liquid crystal element,
While displaying the one image, illumination by the illumination means is performed at a time aperture ratio of 30 to 70%, and the voltage holding means is supplied with the next image data while the switching element is turned off. Apply voltage in order,
And driving a liquid crystal device.
ことを特徴とする請求項３に記載の液晶装置の駆動方法。The temporal aperture ratio is adjusted according to the display image within a range of 30 to 70%.
4. A method of driving a liquid crystal device according to claim 3, wherein:
ことを特徴とする請求項３乃至４のいずれか１項に記載の液晶装置の駆動方法。The illumination means emits white light, and the liquid crystal element has a color filter to display a color image.
A method of driving a liquid crystal device according to any one of claims 3 to 4, characterized in that:
ことを特徴とする請求項３乃至４のいずれか１項に記載の液晶装置の駆動方法。While sequentially displaying a black and white image on the liquid crystal element, the illumination means sequentially irradiates each color light in synchronization with the display of the black and white image.
A method of driving a liquid crystal device according to any one of claims 3 to 4, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07095699A JP3689583B2 (en) | 1999-03-16 | 1999-03-16 | Liquid crystal device and driving method of liquid crystal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07095699A JP3689583B2 (en) | 1999-03-16 | 1999-03-16 | Liquid crystal device and driving method of liquid crystal device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000267635A JP2000267635A (en) | 2000-09-29 |
| JP2000267635A5 true JP2000267635A5 (en) | 2004-10-28 |
| JP3689583B2 JP3689583B2 (en) | 2005-08-31 |
Family
ID=13446489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07095699A Expired - Fee Related JP3689583B2 (en) | 1999-03-16 | 1999-03-16 | Liquid crystal device and driving method of liquid crystal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3689583B2 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003050569A (en) * | 2000-11-30 | 2003-02-21 | Hitachi Ltd | Liquid crystal display |
| JP4210040B2 (en) * | 2001-03-26 | 2009-01-14 | パナソニック株式会社 | Image display apparatus and method |
| JP3492670B2 (en) | 2001-03-30 | 2004-02-03 | 松下電器産業株式会社 | Display device, portable telephone and portable terminal device |
| TW546624B (en) * | 2001-03-30 | 2003-08-11 | Matsushita Electric Industrial Co Ltd | Display device |
| US7218499B2 (en) * | 2003-05-14 | 2007-05-15 | Hewlett-Packard Development Company, L.P. | Charge control circuit |
| CN100401141C (en) * | 2003-08-04 | 2008-07-09 | 富士通株式会社 | Liquid crystal display device |
| JP2006030835A (en) * | 2004-07-21 | 2006-02-02 | International Display Technology Kk | Array substrate, liquid crystal display and driving method thereof |
| JP5125005B2 (en) * | 2006-07-04 | 2013-01-23 | セイコーエプソン株式会社 | Display device and display system using the same |
| JP4508166B2 (en) * | 2006-07-04 | 2010-07-21 | セイコーエプソン株式会社 | Display device and display system using the same |
| JP2008020600A (en) * | 2006-07-12 | 2008-01-31 | Seiko Epson Corp | Image display device and display device |
| US20080079686A1 (en) * | 2006-09-28 | 2008-04-03 | Honeywell International Inc. | LCD panel with scanning backlight |
| JP5066912B2 (en) * | 2006-12-14 | 2012-11-07 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
| WO2011081010A1 (en) | 2009-12-28 | 2011-07-07 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display device and electronic device |
| TWI473065B (en) * | 2012-04-23 | 2015-02-11 | Sitronix Technology Corp | The drive circuit of the flashing display panel can be eliminated |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI73325C (en) * | 1985-03-05 | 1987-09-10 | Elkoteade Ag | FOERFARANDE FOER ALSTRING AV INDIVIDUELLT REGLERBARA BILDELEMENT OCH PAO DESSA BASERAD FAERGDISPLAY. |
| JPH0318892A (en) * | 1989-06-16 | 1991-01-28 | Seiko Epson Corp | Face sequential display |
| JP3295437B2 (en) * | 1991-03-29 | 2002-06-24 | 日本放送協会 | Display device |
| JP3133414B2 (en) * | 1991-09-20 | 2001-02-05 | 日本電信電話株式会社 | Color LCD display |
| DE69421511T2 (en) * | 1993-06-30 | 2000-04-27 | Koninklijke Philips Electronics N.V., Eindhoven | MATRIX DISPLAY SYSTEMS AND METHOD FOR THE CONTROL THEREOF |
| JP3305931B2 (en) * | 1995-09-18 | 2002-07-24 | 株式会社東芝 | Liquid crystal display |
| JP3704984B2 (en) * | 1998-12-28 | 2005-10-12 | 株式会社日立製作所 | Liquid crystal display device |
-
1999
- 1999-03-16 JP JP07095699A patent/JP3689583B2/en not_active Expired - Fee Related
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