JP2002032048A5 - - Google Patents
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- JP2002032048A5 JP2002032048A5 JP2000314332A JP2000314332A JP2002032048A5 JP 2002032048 A5 JP2002032048 A5 JP 2002032048A5 JP 2000314332 A JP2000314332 A JP 2000314332A JP 2000314332 A JP2000314332 A JP 2000314332A JP 2002032048 A5 JP2002032048 A5 JP 2002032048A5
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【発明の名称】画像表示装置およびそれを用いた電子機器、データ信号線駆動回路、駆動回路 Patent application title: Image display device, electronic apparatus using the same , data signal line drive circuit, drive circuit
Claims (64)
上記データ信号線駆動回路および走査信号線駆動回路のうちの少なくとも一方の駆動回路について、該駆動回路の少なくとも一部分を複数個備え、該駆動回路同士が、互いに異なる表示形態をとることを特徴とする画像表示装置。A pixel array comprising a plurality of pixels for displaying an image, a data signal line drive circuit for supplying a video signal to the pixel array, a scanning signal line drive circuit for controlling writing of a video signal to the pixel, and the data signal 1. An image display device comprising: a line drive circuit; a timing circuit for supplying a timing signal to the scanning signal line drive circuit; and a video signal processing circuit for supplying a video signal to the data signal line drive circuit.
A drive circuit of at least one of the data signal line drive circuit and the scan signal line drive circuit includes a plurality of at least a part of the drive circuit, and the drive circuits have different display forms. Image display device.
該駆動回路のうちで、各時刻において動作するのは1つのみであることを特徴とする請求項1に記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
2. The image display apparatus according to claim 1, wherein among the drive circuits, only one operates at each time.
少なくとも同一フレーム期間においては、同一の駆動回路を駆動させることを特徴とする請求項1または2に記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
3. The image display apparatus according to claim 1, wherein the same drive circuit is driven at least in the same frame period.
同一フレーム期間内において、駆動させる駆動回路を切り替えることを特徴とする請求項1または2に記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
3. The image display apparatus according to claim 1, wherein a drive circuit to be driven is switched within the same frame period.
該駆動回路の少なくとも2つは、画面内の異なる領域にそれぞれ画像データを書き込むことを特徴とする請求項1、2または4に記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
5. The image display apparatus according to claim 1, wherein at least two of the drive circuits write image data in different areas in the screen.
上記データ信号線駆動回路の少なくとも2つは、同一フレーム期間内において、画面内の少なくとも一部の、同一の領域に画像データを書き込むことを特徴とする請求項1または2に記載の画像表示装置。A plurality of at least a portion of the data signal line drive circuit;
3. The image display apparatus according to claim 1, wherein at least two of the data signal line drive circuits write image data in the same area of at least a part of the screen within the same frame period. .
上記複数のデータ信号線駆動回路の少なくとも1つは、各水平走査期間の帰線期間内に画像データを書き込むことを特徴とする請求項1ないし10のいずれかに記載の画像表示装置。A plurality of at least a portion of the data signal line drive circuit;
The image display device according to any one of claims 1 to 10, wherein at least one of the plurality of data signal line drive circuits writes the image data within a flyback period of each horizontal scanning period.
上記複数のデータ信号線駆動回路の少なくとも1つは、他のデータ信号線駆動回路よりも一定期間遅れて画像データを書き込むことを特徴とする請求項1ないし10のいずれかに記載の画像表示装置。A plurality of at least a portion of the data signal line drive circuit;
The image display device according to any one of claims 1 to 10, wherein at least one of the plurality of data signal line drive circuits writes the image data with a predetermined period of time later than the other data signal line drive circuits. .
該駆動回路は、画素アレイに対して互いに反対側に配置されていることを特徴とする請求項1ないし4のいずれかに記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
The image display device according to any one of claims 1 to 4, wherein the drive circuits are disposed on opposite sides of the pixel array.
該駆動回路は、画素アレイに対して同じ側に配置されていることを特徴とする請求項1ないし4のいずれかに記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
The image display apparatus according to any one of claims 1 to 4, wherein the drive circuit is disposed on the same side with respect to the pixel array.
該駆動回路は、それぞれ、その一部の回路が共通であることを特徴とする請求項1または14に記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
The image display apparatus according to claim 1 or 14, wherein the drive circuits have a part of their circuits in common.
外部より入力される信号により、該駆動回路のいずれを駆動するかを制御することを特徴とする請求項1ないし15のいずれかに記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
The image display apparatus according to any one of claims 1 to 15, wherein which of the drive circuits is driven is controlled by a signal input from the outside.
上記検知手段からの信号に基づいて上記表示形態を切り替える表示形態切り替え手段とを具備することを特徴とする請求項1ないし22のいずれかに記載の画像表示装置。Detection means for detecting the use environment
The image display apparatus according to any one of claims 1 to 22, further comprising display mode switching means for switching the display mode based on a signal from the detection means.
上記映像種類判別手段からの信号に基づいて上記表示形態を切り替える表示形態切り替え手段とを具備することを特徴とする請求項1ないし22のいずれかに記載の画像表示装置。Video type determination means for determining the type of video signal to be input;
The image display apparatus according to any one of claims 1 to 22, further comprising display mode switching means for switching the display mode based on a signal from the video type discrimination means.
該駆動回路は、それぞれ独立の電源端子および入力端子を備えることを特徴とする請求項1ないし16のいずれかに記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
The image display apparatus according to any one of claims 1 to 16, wherein the drive circuit comprises independent power supply terminals and input terminals.
該駆動回路は、電源端子および入力端子の一部が共通化されていることを特徴とする請求項1ないし16のいずれかに記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
The image display apparatus according to any one of claims 1 to 16, wherein a part of a power supply terminal and an input terminal of the drive circuit is made common.
該駆動回路のうち、動作していないほうの駆動回路には、電源の供給を停止することを特徴とする請求項1ないし16のいずれかに記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
The image display apparatus according to any one of claims 1 to 16, wherein the supply of power is stopped to the drive circuit which is not operating among the drive circuits.
該駆動回路のうち、表示に供しないほうの駆動回路と画素アレイとを電気的に切り離す手段を具備することを特徴とする請求項1ないし16のいずれかに記載の画像表示装置。Regarding the drive circuit provided with a plurality of at least a portion,
The image display apparatus according to any one of claims 1 to 16, further comprising means for electrically disconnecting the drive circuit not used for display and the pixel array among the drive circuits.
上記複数個の少なくとも一つにおいて、複数のデータ信号線に同一の画像データを書き込むことを特徴とする請求項31または32に記載の画像表示装置。A plurality of at least a portion of the data signal line drive circuit;
Above in the plurality pieces of at least one image display device according to claim 31 or 32 and writes the same image data into a plurality of data signal lines.
上記複数個の少なくとも一つにおいて、水平方向に連続する同一色の複数の画素に対応するデータ信号線に同一の画像データを書き込むことを特徴とする請求項31または32に記載の画像表示装置。A plurality of at least a portion of the data signal line drive circuit;
Above in the plurality pieces of at least one image display device according to claim 31 or 32 and writes the same image data to the data signal lines corresponding to the plurality of pixels of the same color continuous in the horizontal direction.
上記複数個の少なくとも一つにおいて、水平方向に連続する3色の複数の画素に対応するデータ信号線に同一の画像データを書き込むことを特徴とする請求項32に記載の画像表示装置。A plurality of at least a portion of the data signal line drive circuit;
Above in the plurality pieces of at least one image display device according to claim 32, wherein writing the same image data to the data signal lines corresponding to the plurality of pixels of three colors continuous in the horizontal direction.
連続する複数の走査信号線には、同じタイミングで走査信号が書き込まれ、それぞれの走査期間において、上記データ信号線駆動回路から出力された画像データが、各データ信号線で保持されることを特徴とする請求項31に記載の画像表示装置。A scanning signal is written to a plurality of continuous scanning signal lines at the same timing, and in each scanning period, image data output from the data signal line drive circuit is held by each data signal line. The image display apparatus according to claim 31, wherein
連続する複数の走査信号線には、異なるタイミングで走査信号が書き込まれ、それぞれの走査期間において、上記データ信号線駆動回路から同一の画像データが出力されることを特徴とする請求項31に記載の画像表示装置。The scan signal is written to a plurality of consecutive scan signal lines at different timings, and the same image data is output from the data signal line drive circuit in each scan period. Image display device.
連続する複数の走査信号線には、異なるタイミングで走査信号が書き込まれ、複数の走査期間を含む期間中、上記データ信号線駆動回路から出力された画像データが、各データ信号線において保持されることを特徴とする請求項31に記載の画像表示装置。Scan signals are written to a plurality of continuous scan signal lines at different timings, and image data output from the data signal line drive circuit is held in each data signal line during a period including a plurality of scan periods. The image display apparatus according to claim 31, characterized in that:
連続する複数の走査信号線には、異なるタイミングで走査信号が書き込まれ、それぞれの走査期間において、上記データ信号線駆動回路から、極性の異なる同一階調に相当する画像データが出力されることを特徴とする請求項31に記載の画像表示装置。Scan signals are written to a plurality of continuous scan signal lines at different timings, and the image signal corresponding to the same gradation with different polarities is output from the data signal line drive circuit in each scan period. The image display apparatus according to claim 31, characterized in that:
上記各データ信号線に書き込まれる画像データは、1フレーム期間中、同一極性であることを特徴とする請求項31に記載の画像表示装置。The image display apparatus according to claim 31, wherein the image data written to each of the data signal lines has the same polarity during one frame period.
上記データ信号線駆動回路内に、基準電圧選択回路と中間電位生成回路とを具備しており、A reference voltage selection circuit and an intermediate potential generation circuit are provided in the data signal line drive circuit,
表示階調が少ない時には、上記基準電圧選択回路のみを動作させ、上記中間電位生成回路は動作させず、When the display gradation is small, only the reference voltage selection circuit is operated and the intermediate potential generation circuit is not operated.
一方、表示階調が多い時には、上記基準電圧選択回路および上記中間電位生成回路を共に動作させることを特徴とする請求項41または42に記載の画像表示装置。43. The image display device according to claim 41, wherein the reference voltage selection circuit and the intermediate potential generation circuit are operated together when the display gradation is large.
上記データ信号線駆動回路内にアンプ回路を具備し、表示階調が少ない時には上記アンプ回路は動作させず、一方、表示階調が多い時には上記アンプ回路を動作させることを特徴とする請求項41ないし43のいずれかに記載の画像表示装置。The amplifier circuit is provided in the data signal line drive circuit, and the amplifier circuit is not operated when the display gradation is small, while the amplifier circuit is operated when the display gradation is large. The image display apparatus according to any one of to 43.
該駆動回路が、上記画素と同一基板上に形成されていることを特徴とする請求項1ないし52のいずれかに記載の画像表示装置。The image display device according to any one of claims 1 to 52, wherein the drive circuit is formed on the same substrate as the pixel.
該駆動回路を構成する能動素子が、多結晶シリコン薄膜トランジスタであることを特徴とする請求項53に記載の画像表示装置。The image display device according to claim 53, wherein the active element constituting the drive circuit is a polycrystalline silicon thin film transistor.
該駆動回路を構成する上記能動素子が、ガラス基板上に、600℃以下のプロセスで形成されることを特徴とする請求項54に記載の画像表示装置。The image display device according to claim 54, wherein the active element constituting the drive circuit is formed on a glass substrate by a process at 600 ° C. or less.
表示階調が少ないときには、上記基準電圧選択回路のみを動作させ、上記中間電位生成回路は動作させず、When the display gradation is low, only the reference voltage selection circuit is operated and the intermediate potential generation circuit is not operated.
一方、表示階調が多いときには、上記基準電圧選択回路および上記中間電位生成回路を共に動作させることを特徴とするデータ信号線駆動回路。On the other hand, when there are many display gradations, both the reference voltage selection circuit and the intermediate potential generation circuit are operated.
上記走査回路の第1段へのスタート信号の入力を制御する第1の制御スイッチ手段と、First control switch means for controlling input of a start signal to the first stage of the scanning circuit;
上記走査回路の第m(mは1以上かつn以下の整数)段と第(m+1)段との間に設けられた第2の制御スイッチ手段と、Second control switch means provided between the m-th (m is an integer of 1 or more and n or less) stages of the scanning circuit and the (m + 1) -th stage;
上記第(m+1)段へのスタート信号の入力を制御する第3の制御スイッチ手段とを含And third control switch means for controlling the input of the start signal to the (m + 1) th stage. み、,
第1の制御信号により上記第1の制御スイッチ手段および上記第2の制御スイッチ手段とを制御し、Controlling the first control switch means and the second control switch means by a first control signal;
第2の制御信号により上記第3の制御スイッチ手段を制御することを特徴とする駆動回路。And driving the third control switch means in response to a second control signal.
上記画像表示装置が、請求項1ないし55、58、60のいずれかに記載の画像表示装置であることを特徴とする電子機器。61. An electronic device characterized in that the image display device is the image display device according to any one of claims 1 to 55, 58, 60.
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000314332A JP2002032048A (en) | 2000-05-09 | 2000-10-13 | Picture display device and electronic apparatus using the same |
TW090110848A TWI267049B (en) | 2000-05-09 | 2001-05-07 | Image display device, and electronic apparatus using the same |
TW094135312A TWI282956B (en) | 2000-05-09 | 2001-05-07 | Data signal line drive circuit, and image display device incorporating the same |
TW094135313A TWI282957B (en) | 2000-05-09 | 2001-05-07 | Drive circuit, and image display device incorporating the same |
CNB011221747A CN100397470C (en) | 2000-05-09 | 2001-05-09 | Data signal wire driving circuit, image display apparatus and electronic equipment |
CN2007103074238A CN101241687B (en) | 2000-05-09 | 2001-05-09 | Image display device |
US09/851,885 US7339570B2 (en) | 2000-05-09 | 2001-05-09 | Data signal line drive circuit, drive circuit, image display device incorporating the same, and electronic apparatus using the same |
KR10-2001-0025319A KR100509257B1 (en) | 2000-05-09 | 2001-05-09 | Data signal line drive circuit, drive circuit, image display device incorporating the same, and electronic apparatus using the same |
KR10-2004-0036458A KR100515281B1 (en) | 2000-05-09 | 2004-05-21 | Data signal line drive circuit, drive circuit, image display device incorporating the same, and electronic apparatus using the same |
US11/091,012 US7190338B2 (en) | 2000-05-09 | 2005-03-25 | Data signal line drive circuit, drive circuit, image display device incorporating the same, and electronic apparatus using the same |
US11/634,738 US20070146354A1 (en) | 2000-05-09 | 2006-12-05 | Data signal line drive circuit, drive circuit, image display device incorporating the same, and electronic apparatus using the same |
Applications Claiming Priority (3)
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JP2000135844 | 2000-05-09 | ||
JP2000-135844 | 2000-05-09 | ||
JP2000314332A JP2002032048A (en) | 2000-05-09 | 2000-10-13 | Picture display device and electronic apparatus using the same |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006107991A Division JP3946749B2 (en) | 2000-05-09 | 2006-04-10 | Image display device and electronic apparatus using the same |
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JP2002032048A JP2002032048A (en) | 2002-01-31 |
JP2002032048A5 true JP2002032048A5 (en) | 2005-03-17 |
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JP2000314332A Pending JP2002032048A (en) | 2000-05-09 | 2000-10-13 | Picture display device and electronic apparatus using the same |
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