WO2012079249A1 - 投影显示系统 - Google Patents
投影显示系统 Download PDFInfo
- Publication number
- WO2012079249A1 WO2012079249A1 PCT/CN2010/079948 CN2010079948W WO2012079249A1 WO 2012079249 A1 WO2012079249 A1 WO 2012079249A1 CN 2010079948 W CN2010079948 W CN 2010079948W WO 2012079249 A1 WO2012079249 A1 WO 2012079249A1
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- WO
- WIPO (PCT)
- Prior art keywords
- projector
- sensor
- display system
- projection display
- controller
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
Definitions
- the present invention relates to a projection display system, and more particularly to a projection display system capable of generating a three-dimensional image.
- the display system as an image output device can provide users with a specific visual experience, and thus is widely used in various electronic products.
- the display system With the advent of 3D display technology, the display system not only provides users with images and colors, but also provides users with a three-dimensional space experience.
- Three-dimensional display technology can be realized by using human two-eye parallax. By controlling the image of the viewer's left and right eyes, the viewer's left eye only sees the image of the left eye, and the right eye only sees the image of the right eye, so that the viewer can see the three-dimensional image with spatial sense.
- An existing projection display system includes a first projector, a second projector, and a projection screen. The first projector and the second projector can project the image of the left eye and the image of the right eye on the projection screen, and the projection screen respectively reflects the images to the left and right eyes of the viewer, so that the viewer can see the 3D image. .
- the image of the left eye reflected by the projection screen and the optical path of the right eye will change, thereby easily affecting the transmission of the left eye image and the right eye image, thereby reducing viewing.
- the visual effects of the viewer such as causing the edges of the image seen by the viewer to be blurred.
- the present invention provides a projection display system that can improve visual effects.
- the present invention provides a projection display system including a first projector, a second projector, a projection screen, a controller, a first sensor, and a second sensor.
- the first projector and the second projector are adapted to project an image onto the projection screen.
- the first sensor is disposed on the first projector.
- the second sensor is disposed on the second projector.
- the projection screen has a first measurement point and a second measurement point, the first sensor is adapted to sense a first spacing formed between the first measurement point and the first projector, and the second sensor is adapted to sense the second A second spacing formed between the measurement point and the second projector.
- the first sensor and the second sensor respectively sense the result It is transmitted to the controller, and the controller processes the sensing result, and adjusts the image projected by the first projector or the second projector according to the processing result.
- the projection display system includes a controller, a first sensor and a second sensor, and the controller can adjust the projection of the first projector or the second projector according to the sensing results of the first sensor and the second sensor.
- the image is displayed, so it is easy to avoid the influence of the tilt or movement of the projection screen on the image reflected by the projection screen, thereby improving the visual effect displayed by the projection display system.
- FIG. 1 is a schematic diagram of a projection display system in accordance with an embodiment of the present invention.
- Fig. 2 is a schematic view showing a state in which the projection screen of the projection display system shown in Fig. 1 is tilted.
- Figure 3 is a schematic illustration of the adjustment of the first projector and the second projector of the projection display system of Figure 1.
- a projection display system 10 of an embodiment of the present invention includes a first projector 11, a second projector 12, a projection screen 13, a controller 14, a first sensor 15, and a second sensor 16.
- the first projector 11 and the second projector 12 can generate images and project the images onto the projection screen 13.
- the projection screen 13 has a first measurement point 132 and a second measurement point 134.
- the first sensor 15 is disposed on the first projector 11, and the second sensor 16 is disposed on the second projector 12. In use, the first sensor 15 can sense the first spacing D1 formed between the first measuring point 132 and the first projector 11, and the second sensor 16 can sense the second measuring point 134 and the second projection.
- the controller 14 can store a determination program for determining whether the values of the first spacing D1 and the first spacing D2 are within a desired range, if the values of the first spacing D1 and the first spacing D2 are Deviation from the required range, the controller 14 issues a control signal to adjust the image projected by the first projector 11 or the second projector 12.
- the first sensor 15 and the second sensor 16 may be an infrared sensor, an ultrasonic sensor, a complementary metal oxide semiconductor, or a charge coupled device.
- the controller 14 can include a Digital Signal Processor (DSP).
- DSP Digital Signal Processor
- the controller 14 and the first sensor 15 or the second sensor 16 can be connected by wired or wireless communication, and the invention is not limited thereto.
- the projection display system 10 further includes a drive element 17.
- the driving element 17 is connected to the first projector 11 and the second projector 12.
- the controller 14 adjusts the image projected by the first projector 11 or the second projector 12 by the drive element 17. In detail, when the projection screen 13 is tilted (as shown in FIG.
- the controller 14 determines that the first spacing D1 is not equal to the first spacing D2, and the controller 14 also issues a control signal to the driving component. 17, causing the driving component 17 to drive the first projector 11 or the second projector 12 to move, so that the first spacing D1 is equal to the first spacing D2 (as shown in FIG. 3), thereby adjusting the first projector 11 or the second projection.
- the machine 12 projects an image of the projection screen 13. It should be noted that the present invention is not limited to adjusting the first pitch D1 and the first pitch D2 to be equal. For example, in other embodiments, the first pitch D1 and the first pitch D2 may be adjusted to a predetermined ratio.
- the first measurement point 132 and the second measurement point 134 may be disposed at the edge of the projection screen 13, but the present invention does not This is limited to this.
- the projection display system 10 includes a controller 14 , a first sensor 15 , and a second sensor 16 .
- the controller 14 can adjust the first projection according to the sensing results of the first sensor 15 and the second sensor 16 .
- the image projected by the machine 11 or the second projector 12 can easily avoid the influence of the tilting or moving of the projection screen 13 on the image projected by the projection screen 13, so that the visual effect displayed by the projection display system 10 can be improved.
- the projection display system of the present invention includes a controller, a first sensor and a second sensor, and the controller can adjust the first projector or the second projection according to the sensing results of the first sensor and the second sensor
- the image projected by the machine can easily avoid the influence of the tilting or moving of the projection screen on the image reflected by the projection screen, thereby improving the visual effect displayed by the projection display system.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
投影显示系统
技术领域
本发明涉及一种投影显示系统，尤其是能产生三维图像的投影显示系统。
背景技术
显示系统作为影像输出设备可给使用者提供具体的视觉感受， 因此在各 种电子产品中的应用广泛。 随着三维显示技术的出现， 使得显示系统不仅可 为使用者提供影像与色彩外， 更可为使用者提供三维立体空间的感受。
三维显示技术可利用人类的两眼视差来实现。 通过控制进入观看者左眼 与右眼的图像， 使观看者左眼只看到左眼的图像， 右眼只看到右眼的图像， 如此观看者便可看见具有空间感的三维影像。 一种现有的投影显示系统， 其包括第一投影机、 第二投影机与投影屏。 第一投影机与第二投影机可将左眼的图像与右眼的图像投射在投影屏上， 投 影屏则将这些图像分别反射到观看者的左眼与右眼，令观看者看见三维影像。
然而， 在上述投影显示系统中， 当投影屏发生倾斜时， 投影屏反射的左 眼的图像与右眼的光路将会发生改变， 因此容易影响左眼图像与右眼图像的 传输， 进而降低观看者观看的视觉效果， 例如造成观看者看到的影像边缘模 糊。
发明内容
本发明提出一种投影显示系统， 其可改善视觉效果。
本发明提供一种投影显示系统， 其包括第一投影机、 第二投影机、 投影 屏、 控制器、 第一感测器及第二感测器。 第一投影机与第二投影机适于将影 像投射在投影屏上。 第一感测器设于第一投影机上。 第二感测器设于第二投 影机上。 投影屏具有第一测量点与第二测量点， 第一感测器适于感测第一测 量点与第一投影机之间形成的第一间距， 第二感测器适于感测第二测量点与 第二投影机之间形成的第二间距。 第一感测器与第二感测器分别将感测结果
传送给控制器， 控制器处理感测结果， 并根据处理结果调整第一投影机或第 二投影机投射出的影像。
上述投影显示系统包括控制器、 第一感测器及第二感测器， 控制器可根 据第一感测器及第二感测器的感测结果调整第一投影机或第二投影机投射出 的影像，因此容易避免因投影屏的倾斜或移动给投影屏反射影像带来的影响， 从而提升投影显示系统显示的视觉效果。
为让本发明之上述和其他目的、 特征和优点能更明显易懂， 下文特举较 佳实施例， 并配合所附图式， 作详细说明如下。 附图概述
图 1是本发明实施例的投影显示系统的示意图。
图 2是图 1所示的投影显示系统的投影屏倾斜时的示意图。
图 3是图 1所示的投影显示系统的第一投影机与第二投影机调整后的示 意图。 本发明的较佳实施方式
图 1是本发明实施例的投影显示系统的示意图。 请参见图 1 , 本发明实 施例的投影显示系统 10包括第一投影机 11、 第二投影机 12、 投影屏 13、 控 制器 14、 第一感测器 15及第二感测器 16。 第一投影机 11与第二投影机 12 可产生影像，并可将影像投射在投影屏 13上。投影屏 13具有第一测量点 132 与第二测量点 134。 第一感测器 15设于第一投影机 11上， 第二感测器 16设 于第二投影机 12上。 使用时， 第一感测器 15可感测第一测量点 132与第一 投影机 11之间形成的第一间距 D1 ,第二感测器 16可感测第二测量点 134与 第二投影机 12之间形成的第一间距 D2;并且第一感测器 15与第二感测器 16 可分别将感测结果传送给控制器 14; 控制器 14则处理这些感测结果， 并根 据处理结果调整第一投影机 11或第二投影机 12投射出的影像。
承上述， 控制器 14内可存储有判断程序， 用于判断第一间距 D1与第一 间距 D2的值是否处于所需的范围内， 如果第一间距 D1与第一间距 D2的值
与所需的范围有偏离， 则控制器 14会发出控制信号调整第一投影机 11或第 二投影机 12投射出的影像。
在本实施例中， 第一感测器 15及第二感测器 16可为红外线感测器、 超 声波感测器、 互补金属氧化物半导体或电荷耦合器件。 控制器 14可包括数字 信号处理器（ Digital Signal Processor, DSP )。 控制器 14与第一感测器 15或 第二感测器 16之间可通过有线或无线通讯连接， 本发明并不以此为限。投影 显示系统 10还进一步包括驱动元件 17。驱动元件 17与第一投影机 11及第二 投影机 12相连。 控制器 14调整第一投影机 11或第二投影机 12投射出的影 像是通过驱动元件 17来实现。 详细来说， 当投影屏 13发生倾斜时（如图 2 所示） ， 控制器 14会判断出第一间距 D1与第一间距 D2的不相等， 并且控 制器 14还会发出控制信号给驱动元件 17, 促使驱动元件 17带动第一投影机 11或第二投影机 12移动，使第一间距 D1与第一间距 D2相等（如图 3所示）， 从而调节第一投影机 11或第二投影机 12投射到投影屏 13的影像。需要指出 的是， 本发明并不限于将第一间距 D1与第一间距 D2调节成相等的， 例如在 其他实施例中， 可调节第一间距 D1与第一间距 D2成一预定的比例。
除此之外， 为避免第一测量点 132与第二测量点 134影响到影像光线反 射， 第一测量点 132与第二测量点 134可设于投影屏 13的边缘处， 但本发明 并不以此为限。
上述投影显示系统 10包括控制器 14、 第一感测器 15及第二感测器 16, 控制器 14可根据第一感测器 15及第二感测器 16的感测结果调整第一投影机 11或第二投影机 12投射出的影像， 因此容易避免因投影屏 13的倾斜或移动 给投影屏 13反射影像带来的影响， 从而可提升投影显示系统 10显示的视觉 效果。
以上所述， 仅是本发明的较佳实施例而已， 并非对本发明作任何形式上 的限制， 虽然本发明已以较佳实施例揭示如上， 然而并非用以限定本发明,任 何本领域技术人员， 在不脱离本发明技术方案范围内，当可利用上述揭示的技 术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明 等同变化与修饰,均仍属于本发明技术方案的范围内。
工业实用性
本发明的投影显示系统包括控制器、 第一感测器及第二感测器， 控制器 可根据第一感测器及第二感测器的感测结果调整第一投影机或第二投影机投 射出的影像， 因此容易避免因投影屏的倾斜或移动给投影屏反射影像带来的 影响， 从而提升投影显示系统显示的视觉效果。
Claims
1. 一种投影显示系统， 其包括第一投影机、 第二投影机与投影屏， 该第 一投影机与该第二投影机适于将影像投射在该投影屏上， 其特征是： 该投影 显示系统还包括控制器、 第一感测器及第二感测器， 该第一感测器设于该第 一投影机上， 该第二感测器设于该第二投影机上， 该投影屏具有第一测量点 与第二测量点， 该第一感测器适于感测该第一测量点与该第一投影机之间形 成的第一间距， 该第二感测器适于感测该第二测量点与该第二投影机之间形 成的第二间距， 该第一感测器与该第二感测器分别将感测结果传送给该控制 器， 该控制器处理该感测结果， 并根据处理结果调整该第一投影机或该第二 投影机投射出的影像。
2. 根据权利要求 1所述的投影显示系统， 其特征是： 该第一感测器与该 第二感测器为红外线感测器、 超声波感测器、 互补金属氧化物半导体或电荷 耦合器件。
3. 根据权利要求 1所述的投影显示系统， 其特征是： 该投影显示系统还 包括驱动元件， 其与该第一投影机或该第二投影机相连， 该控制器根据该处 理结果通过该驱动元件移动该第一投影机或该第二投影机以调节该第一间距 或该第二间距的大小。
4. 根据权利要求 3所述的投影显示系统， 其特征是： 调节该第一间距或 该第二间距大小后， 该第一间距等于该第二间距。
5. 根据权利要求 1所述的投影显示系统， 其特征是： 该控制器包括数字 信号处理器。
6. 根据权利要求 1所述的投影显示系统， 其特征是： 该第一测量点与第 二测量点设于该投影屏的边缘处。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2010/079948 WO2012079249A1 (zh) | 2010-12-17 | 2010-12-17 | 投影显示系统 |
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2010/079948 WO2012079249A1 (zh) | 2010-12-17 | 2010-12-17 | 投影显示系统 |
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| WO2012079249A1 true WO2012079249A1 (zh) | 2012-06-21 |
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| US20060256302A1 (en) * | 2005-05-13 | 2006-11-16 | Microsoft Corporation | Three-dimensional (3D) image projection |
| JP2008085748A (ja) * | 2006-09-28 | 2008-04-10 | Victor Co Of Japan Ltd | 画像投影表示装置 |
| KR20080044654A (ko) * | 2006-11-17 | 2008-05-21 | 주식회사 대우일렉트로닉스 | 프로젝터의 자동 영상 조정 방법 및 장치 |
| CN101558655A (zh) * | 2006-11-29 | 2009-10-14 | F.珀斯扎特胡有限公司 | 三维投影显示器 |
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2010
- 2010-12-17 WO PCT/CN2010/079948 patent/WO2012079249A1/zh active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322512A (ja) * | 2002-05-02 | 2003-11-14 | Shimizu Corp | 供試体の寸法測定装置 |
| US6729733B1 (en) * | 2003-03-21 | 2004-05-04 | Mitsubishi Electric Research Laboratories, Inc. | Method for determining a largest inscribed rectangular image within a union of projected quadrilateral images |
| CN1577050A (zh) * | 2003-07-11 | 2005-02-09 | 精工爱普生株式会社 | 图像处理系统、投影机及图像处理方法 |
| US20060256302A1 (en) * | 2005-05-13 | 2006-11-16 | Microsoft Corporation | Three-dimensional (3D) image projection |
| JP2008085748A (ja) * | 2006-09-28 | 2008-04-10 | Victor Co Of Japan Ltd | 画像投影表示装置 |
| KR20080044654A (ko) * | 2006-11-17 | 2008-05-21 | 주식회사 대우일렉트로닉스 | 프로젝터의 자동 영상 조정 방법 및 장치 |
| CN101558655A (zh) * | 2006-11-29 | 2009-10-14 | F.珀斯扎特胡有限公司 | 三维投影显示器 |
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