JP2006508378A5 - - Google Patents
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- JP2006508378A5 JP2006508378A5 JP2004528034A JP2004528034A JP2006508378A5 JP 2006508378 A5 JP2006508378 A5 JP 2006508378A5 JP 2004528034 A JP2004528034 A JP 2004528034A JP 2004528034 A JP2004528034 A JP 2004528034A JP 2006508378 A5 JP2006508378 A5 JP 2006508378A5
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- pulse
- pixel
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- pixel brightness
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- 230000002459 sustained Effects 0.000 claims 17
- 235000019557 luminance Nutrition 0.000 claims 8
- 230000000051 modifying Effects 0.000 claims 8
- 235000019571 color Nutrition 0.000 claims 4
- 239000003086 colorant Substances 0.000 claims 2
- 230000000875 corresponding Effects 0.000 claims 2
- 238000005286 illumination Methods 0.000 claims 2
- 230000001678 irradiating Effects 0.000 claims 2
- 230000001052 transient Effects 0.000 claims 2
- 230000003247 decreasing Effects 0.000 claims 1
Claims (20)
選択されたパルスを発生させてピクセル輝度を増加させ、第１および第２のピクセル輝度限界間のピクセル輝度レベルの第１の範囲内で、第１の大きい持続パルス成分が発生されて第２のピクセル輝度限界に到達し、第２および第３のピクセル輝度限界間のピクセル輝度レベルの第２の範囲内で、第１の大きい持続パルス成分が発生され続け、第３のピクセル輝度限界に到達すると第１の大きい持続パルス要素が発生されたまま第２の大きい持続パルス成分が発生されるステップを有する、前記方法。 The illumination for a given color of each pixel is controlled in response to a pulse in each segment of the sequence of pulse width segments, and the state of each pulse in each segment is the interval associated with that pulse. A method of operating a pulse width modulated display system that determines whether a pixel is illuminated during
Generating a selected pulse to increase pixel brightness, and within a first range of pixel brightness levels between the first and second pixel brightness limits, a first large sustained pulse component is generated to generate a second When the pixel brightness limit is reached, and within the second range of pixel brightness levels between the second and third pixel brightness limits, the first large sustained pulse component continues to be generated and reaches the third pixel brightness limit. comprising the step of the second large duration pulse component is generated while the first large duration pulse element is generated, said method.
選択されたパルスを停止することによりピクセル輝度を減少させ、所定のピクセル輝度限界内で、発生されていた第１の大きい持続パルス成分を正に停止させて、連続したより低いピクセル輝度限界で、各々の予め発生され未だ停止されていない大きい持続パルス成分を発生させた状態で、第１の大きい持続パルス成分が停止されたままで第２の大きい持続パルス成分が停止されるステップを有する、前記方法。 The illumination for a given color of each pixel is controlled in response to a pulse in each segment of the sequence of pulse width segments, and the state of each pulse in each segment is the interval associated with that pulse. A method of operating a pulse width modulated display system that determines whether a pixel is illuminated during
Decreasing the pixel brightness by stopping the selected pulse, and positively stopping the first large sustained pulse component that was generated within the predetermined pixel brightness limit, with a continuous lower pixel brightness limit, in each pre generated by state of still caused the large duration pulse component that is not stopping, with the step of the second large duration pulse component is stopped while the first large duration pulse component is stopped, said method .
入射光をスクリーンに集束させるための映写レンズと、
アレイに配置された複数の個々のマイクロミラーを有するディジタル・マイクロミラー・デバイスであって、個々のマイクロミラーは、関連するドライバ・セルに適用されるドライブ信号の受信に応答して円弧内で回転可能であり、光源からの光を映写レンズ内およびスクリーン上に反射して、その画素を照射する、前記ディジタル・マイクロミラー・デバイスと、
反射させて映写レンズ内に投射するため三原色のそれぞれを連続してディジタル・マイクロミラー・デバイスに照射するための手段と、
選択されたパルスを発生することによりピクセル輝度を増加するためのパルス幅セグメントのシーケンスを形成するプロセッサであって、第１および第２のピクセル輝度限界間の輝度レベルの第１の範囲内で、第１および第２のピクセル輝度限界間の輝度レベルの第１の範囲内で第１の大きい持続パルス成分が発生されて、第２のピクセル輝度限界に到達し、第２および第３のピクセル輝度限界間のピクセル輝度レベルの第２の範囲内で、第１の大きい持続パルス成分が発生されたままで、第３のピクセル輝度限界に到達すると、第１の大きい持続パルスを発生させたままで、第２の大きい持続パルス成分が発生される前記プロセッサと、
ディジタル・マイクロミラー・デバイスを駆動して相当するピクセルを照射するためプロセッサにより生成されたパルス幅のシーケンスに応答するドライバ回路と、
を有する、パルス幅変調表示システム。 A light source;
A projection lens for focusing the incident light on the screen;
A digital micromirror device having a plurality of individual micromirrors arranged in an array, each micromirror rotating in an arc in response to receiving a drive signal applied to an associated driver cell are possible, to reflect the projection lens and the screen light from a light source, illuminates the pixels, and the digital micromirror device,
Means for continuously irradiating the digital micromirror device with each of the three primary colors for reflection and projection into a projection lens;
A processor for forming a sequence of pulse width segments for increasing pixel brightness by generating selected pulses, within a first range of brightness levels between first and second pixel brightness limits, A first large sustained pulse component is generated within a first range of luminance levels between the first and second pixel luminance limits to reach the second pixel luminance limit and the second and third pixel luminances Within the second range of pixel luminance levels between the limits, the first large sustained pulse component remains generated, and when the third pixel luminance limit is reached, the first large sustained pulse remains generated. The processor in which two large sustained pulse components are generated;
A driver circuit responsive to a sequence of pulse widths generated by the processor to drive the digital micromirror device to illuminate the corresponding pixel;
The a pulse width modulation display system.
入射光をスクリーンに集束させるための映写レンズと、
アレイに配置された複数の個々のマイクロミラーを有するディジタル・マイクロミラー・デバイスであって、個々のマイクロミラーは、関連するドライバ・セルに適用されるドライブ信号の受信に応答して円弧内で回転可能であり、光源からの光を映写レンズ内およびスクリーン上に反射して、その画素を照射するものであり、
反射させて映写レンズ内に投射するため三原色のそれぞれを連続してディジタル・マイクロミラー・デバイスに照射するための手段と、
選択されたパルスを停止することによりピクセル輝度を減少するためのパルス幅セグメントのシーケンスを形成するプロセッサであって、他の予め発生されていた大きい持続パルス成分で未だ停止されていないものを発生させた状態で、第１のピクセル輝度限界で、発生されていた第１の大きい持続パルス成分が正に停止されて、第２の連続したより低いピクセル輝度限界で、第１の大きい持続パルス成分が停止されたままで、第２の大きい持続パルスを停止される前記プロセッサと、
ディジタル・マイクロミラー・デバイスを駆動して相当するピクセルを照射するためプロセッサにより生成されたパルス幅のシーケンスに応答するドライバ回路と、
を有する、パルス幅変調表示システム。 A light source;
A projection lens for focusing the incident light on the screen;
A digital micromirror device having a plurality of individual micromirrors arranged in an array, each micromirror rotating in an arc in response to receiving a drive signal applied to an associated driver cell It is possible to irradiate the pixel by reflecting the light from the light source in the projection lens and on the screen,
Means for continuously irradiating the digital micromirror device with each of the three primary colors for reflection and projection into a projection lens;
A processor that forms a sequence of pulse width segments to reduce pixel brightness by stopping selected pulses, generating other previously generated large sustained pulse components that have not yet been stopped In a state where the first large sustained pulse component is positively stopped at the first pixel luminance limit, the first large sustained pulse component is stopped at the second consecutive lower pixel luminance limit. The processor being stopped and being stopped with a second large sustained pulse;
A driver circuit responsive to a sequence of pulse widths generated by the processor to drive the digital micromirror device to illuminate the corresponding pixel;
The a pulse width modulation display system.
At least one Ru formed from the combination of the pulse, the pulse width modulation display system according to claim 18 of the first and second large duration pulse component.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40319002P | 2002-08-13 | 2002-08-13 | |
| US10/354,528 US6781737B2 (en) | 2002-08-13 | 2003-01-30 | Pulse width modulated display with hybrid coding |
| PCT/US2003/025119 WO2004015981A2 (en) | 2002-08-13 | 2003-08-11 | Pulse width modulated display with hybrid coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006508378A JP2006508378A (en) | 2006-03-09 |
| JP2006508378A5 true JP2006508378A5 (en) | 2006-09-21 |
Family
ID=31720312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004528034A Pending JP2006508378A (en) | 2002-08-13 | 2003-08-11 | Pulse width modulation display with hybrid coding |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1546794A4 (en) |
| JP (1) | JP2006508378A (en) |
| KR (1) | KR101015029B1 (en) |
| CN (1) | CN100396105C (en) |
| AU (1) | AU2003265408A1 (en) |
| MX (1) | MXPA05001668A (en) |
| WO (1) | WO2004015981A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007254834B2 (en) * | 2006-06-02 | 2011-10-27 | Compound Photonics Limited | Pulse width driving method using multiple pulse |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185602A (en) * | 1989-04-10 | 1993-02-09 | Cirrus Logic, Inc. | Method and apparatus for producing perception of high quality grayscale shading on digitally commanded displays |
| DE69524502T2 (en) * | 1994-07-25 | 2002-06-06 | Texas Instruments Inc | Method for reducing temporal artifacts in digital video systems |
| US6204834B1 (en) * | 1994-08-17 | 2001-03-20 | Si Diamond Technology, Inc. | System and method for achieving uniform screen brightness within a matrix display |
| JP3790277B2 (en) * | 1994-11-24 | 2006-06-28 | テキサス インスツルメンツ インコーポレイテツド | Pulse width modulation digital display pixel intensity adjustment method and display system to which this method is applied |
| US5818419A (en) * | 1995-10-31 | 1998-10-06 | Fujitsu Limited | Display device and method for driving the same |
| EP0865210B1 (en) * | 1997-03-12 | 2006-07-26 | Texas Instruments Incorporated | Colour-sequential video display system |
| JP2994631B2 (en) | 1997-12-10 | 1999-12-27 | 松下電器産業株式会社 | Drive pulse control device for PDP display |
| US6618031B1 (en) * | 1999-02-26 | 2003-09-09 | Three-Five Systems, Inc. | Method and apparatus for independent control of brightness and color balance in display and illumination systems |
| JP4008178B2 (en) | 1999-03-04 | 2007-11-14 | 松下電器産業株式会社 | Gradation display method |
| JP2000259126A (en) * | 1999-03-04 | 2000-09-22 | Matsushita Electric Ind Co Ltd | Gradational display method |
| EP1334623A2 (en) * | 2000-10-12 | 2003-08-13 | Reveo, Inc. | 3d projection system with a digital micromirror device |
-
2003
- 2003-08-11 CN CNB038191946A patent/CN100396105C/en not_active Expired - Fee Related
- 2003-08-11 KR KR1020057002532A patent/KR101015029B1/en active IP Right Grant
- 2003-08-11 EP EP03785185A patent/EP1546794A4/en not_active Withdrawn
- 2003-08-11 AU AU2003265408A patent/AU2003265408A1/en not_active Abandoned
- 2003-08-11 MX MXPA05001668A patent/MXPA05001668A/en active IP Right Grant
- 2003-08-11 JP JP2004528034A patent/JP2006508378A/en active Pending
- 2003-08-11 WO PCT/US2003/025119 patent/WO2004015981A2/en active Search and Examination
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