WO2016065510A1 - Projection screen and projection system - Google Patents

Projection screen and projection system Download PDF

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Publication number
WO2016065510A1
WO2016065510A1 PCT/CN2014/089573 CN2014089573W WO2016065510A1 WO 2016065510 A1 WO2016065510 A1 WO 2016065510A1 CN 2014089573 W CN2014089573 W CN 2014089573W WO 2016065510 A1 WO2016065510 A1 WO 2016065510A1
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WO
WIPO (PCT)
Prior art keywords
projection
layer
projection screen
touch
converter
Prior art date
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PCT/CN2014/089573
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French (fr)
Chinese (zh)
Inventor
刘泽江
Original Assignee
苏州泛普纳米科技有限公司
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Priority to PCT/CN2014/089573 priority Critical patent/WO2016065510A1/en
Publication of WO2016065510A1 publication Critical patent/WO2016065510A1/en

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    • 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
    • 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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/20—Systems characterised by their energy storage means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • the present invention relates to the field of touch technologies, and in particular, to a touchable projection screen and a projection system.
  • the projected information can be operated by the touch projection screen in the projection system. That is to say, when the image is projected onto the projection screen such as a projection cloth or a projection board, the operator can directly operate and control the image displayed on the projection screen by touching the projection screen.
  • the projection screen needs to implement functions such as touch, it needs an independent power supply to supply power to the touch-responsive components. Therefore, the touch-sensitive projection screen has a large limitation in use. In the position where the projection screen is set, a power socket or the like must be provided for power supply, or a heavy external power supply may be disposed on the projection screen. These limitations make it inconvenient to use and have poor flexibility.
  • the present invention provides a projection screen and a projection system, which can convert light energy such as projection light into electrical energy, thereby eliminating the need to additionally provide power for the projection screen.
  • a projection screen comprising a photoelectric conversion layer, a converter and a touch layer:
  • the photoelectric conversion layer is located at an outermost layer of a projection side of the projection screen for converting the collected light energy into electrical energy, and the light energy comprises projection light;
  • the input end of the converter is connected to the output end of the photoelectric conversion layer, and is used for adjusting the electric energy converted by the photoelectric conversion layer to the electric energy applicable to the touch layer;
  • the power input end of the touch layer is connected to the output end of the converter, and is configured to implement a touch function by using electrical energy output by the converter.
  • an insulating layer is further included between the photoelectric conversion layer and the touch layer.
  • the insulating layer is used to insulate the photoelectric conversion layer from the touch layer;
  • the insulating layer is specifically a polyethylene terephthalate PET film.
  • the power storage device is further included:
  • the power storage device is connected to the converter, and is configured to store excess power output by the converter when the power output by the converter is greater than a preset power, and is used to output less power than the converter
  • the preset electrical energy is described, the stored electrical energy is output to the converter such that the electrical energy output by the converter reaches the preset electrical energy.
  • the base layer is further included:
  • the base layer is located at an outermost layer of the projection screen that does not display a projection side, and is used for determining a shape of the projection screen;
  • the touch layer is located between the photoelectric conversion layer and the base layer.
  • an insulating layer is further included between the base layer and the touch layer.
  • controller is further included:
  • the controller is electrically connected to the touch layer, and is configured to filter out clutter in the output signal of the touch layer by using a filtering algorithm to obtain a touch signal;
  • the controller is further configured to output the touch signal.
  • the filter is further included:
  • the filter is coupled to the converter and the controller, respectively, for filtering noise and electromagnetic interference generated by the converter and the controller.
  • a projection system including a projection screen and a projection device:
  • the projection screen is a projection screen according to any one of claims 1 to 8;
  • the projection device is configured to output a projection light according to the projection signal, and perform corresponding adjustment on the projection signal according to the touch signal output by the projection screen.
  • the projection device is integrated in the smart terminal.
  • the photoelectric conversion layer included in the projection screen can convert the projection light during projection into electrical energy, and the converted electrical energy can be provided to the touch layer included in the projection screen as a working power source. So that as long as during the projection process, the photoelectric conversion layer can Continuously converting electrical energy from the projection light to supply power to the touch layer, so that the projection screen no longer needs to be connected to the external power supply for the touch layer, thereby improving the convenience of use and high user experience.
  • FIG. 1 is a schematic structural diagram of a projection screen according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a projection according to an embodiment of the present invention.
  • 3a is a schematic diagram of distribution of a photoelectric conversion layer according to an embodiment of the present invention.
  • 3b is a schematic diagram of distribution of a photoelectric conversion layer according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a projection screen according to an embodiment of the present invention.
  • FIG. 5 is a structural diagram of a system of a projection system according to an embodiment of the present invention.
  • the current touch screen projection screens need to be connected to an external power supply to supply power to the touch, so that at least one power supply line or one external power supply is provided on the projection screen.
  • the projection screen using the power cord must be placed at the position with the power connector, which imposes a great limitation on the use of the projection screen.
  • the working time of the projection screen using the external power supply is limited by the capacity of the external power supply. If you forget to charge or run out of power, the projection screen will not be able to realize the touch function, which will affect the normal operation.
  • an embodiment of the present invention provides a projection screen.
  • the photoelectric conversion layer included in the projection screen can convert the projection light during projection into electrical energy, and the converted electrical energy can be provided to the touch included in the projection screen.
  • the control layer is used as a working power source, so that the photoelectric conversion layer can continuously convert electrical energy from the projection light to supply power to the touch layer, so that the projection screen no longer needs to be specifically used for the touch
  • the control layer is connected to an external power supply, which improves the convenience of use and has a high user experience.
  • the embodiment of the present invention provides an energy storage solution, in which the power storage device is installed, and the converted photoelectric conversion layer can be stored, except for the touch Controlling excess power other than power supply, such that when the electrical energy converted by the photoelectric conversion layer is insufficient to supply power to the touch layer, the power storage device
  • the auxiliary device can output power to the touch layer through the converter, so that the touch layer can work normally, thereby further improving the reliability of the projection screen provided by the embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a projection screen according to an embodiment of the present invention.
  • the projection screen 10 includes a photoelectric conversion layer 1, a converter 3, and a touch layer 2:
  • the photoelectric conversion layer 1 is located at an outermost layer of the projection screen 10 on which a projection side is displayed for converting the collected light energy into electrical energy, and the light energy includes projection light.
  • the photoelectric conversion layer 1 When the projection is performed, due to the position of the photoelectric conversion layer 1 on the projection screen, the photoelectric conversion layer 1 is the first layer of the projected light received in the projection screen 10, as shown in the figure.
  • 2 is a schematic diagram of a projection according to an embodiment of the present invention.
  • the left side of FIG. 2 is a projection screen 10, and the right side is a projection device 20 for projection.
  • the projection light is emitted from the projection device 20 to
  • the projection screen 10 is on the screen.
  • the material of the photoelectric conversion layer 1 needs to meet the conditions that do not affect the touch operation of the touch layer 2 to receive the user.
  • the photoelectric conversion The layer can be a layer of solar film.
  • FIG. 3a is a schematic diagram showing the distribution of a photoelectric conversion layer according to an embodiment of the present invention.
  • FIG. 3a shows that the photoelectric conversion layer 1 is divided into four parts and distributed on the projection screen 10.
  • FIG. 3b is a schematic diagram of a distribution of a photoelectric conversion layer according to an embodiment of the present invention, and FIG. 3b shows a concentrated distribution of the photoelectric conversion layer 1 in the middle of the projection screen 10.
  • the light energy may also include visible light or natural light, so that The projection screen 10 can also convert electrical energy through the photoelectric conversion layer 1 in the case where the light source is good, such as in a well-lit room or in a sunny outdoor.
  • the input end of the converter 3 is connected to the output end of the photoelectric conversion layer 1 for adjusting the electric energy converted by the photoelectric conversion layer to the electric energy applicable to the touch layer 2 .
  • the electric energy converted by the photoelectric conversion layer 1 is generally direct current, and the operating power of the touch layer 2 is alternating current, so DC/AC conversion and voltage conversion are required through the converter 3. A voltage that is adapted to the touch layer.
  • the power input end of the touch layer 2 is connected to the output end of the converter 3 for implementing a touch function by using the power output by the converter 3.
  • the touch layer 2 is used to sense and locate the touch operation position of the user and the touch operation type (such as sliding, clicking, continuous pressing, etc.), and the manner of sensing and positioning the touch operation may be The metal lines distributed on the touch layer 2 are perceived.
  • the photoelectric conversion layer included in the projection screen can convert the projection light during projection into electrical energy, and the converted electrical energy can be provided to the touch layer included in the projection screen as a working power source, Therefore, the photoelectric conversion layer can continuously convert the electrical energy from the projection light to supply power to the touch layer, so that the projection screen no longer needs to specifically connect the external power supply to the touch layer, thereby improving The ease of use and the user experience are high.
  • FIG. 4 is a schematic structural diagram of a projection screen according to an embodiment of the present invention. As shown in FIG. 4 , an insulating layer 4 is further disposed between the photoelectric conversion layer 1 and the touch layer 2 of the projection screen 10 .
  • the insulating layer 4 is used to insulate the photoelectric conversion layer 1 and the touch layer 2 .
  • the insulating layer is specifically a polyethylene terephthalate (PET) film.
  • PET polyethylene terephthalate
  • the embodiment of the present invention provides a solution for energy storage.
  • the projection screen 10 further includes a power storage device 5:
  • the power storage device 5 is connected to the converter 3 for storing excess power output by the converter 3 when the power output by the converter 3 is greater than a preset power, and is used when the converter 3 When the output electric energy is less than the preset electric energy, the stored electric energy is output to the converter 3 such that the electric energy output by the converter 3 reaches the preset electric energy.
  • the preset power described herein can be set to the electrical energy required for the touch layer 2 to operate normally.
  • the electric energy converted by the converter 3 exceeds the preset electric energy, if the excess electric energy is not properly processed, the system may be burdened. Therefore, after the power storage device 5 is installed, in addition to storing excess electric energy, When the electrical energy converted by the photoelectric conversion layer 1 is insufficient to supply power to the touch layer 2, the power storage device 5 can serve as an auxiliary, and output power to the touch layer 2 through the converter 3 to The touch layer 2 can be operated normally, so that the reliability of the projection screen provided by the embodiment of the invention can be further improved.
  • the embodiment of the present invention further provides a base layer 6 for determining the shape of the projection screen 10.
  • the projection screen 10 further includes a foundation.
  • the base layer 6 is located at an outermost layer on which the projection screen 10 does not display a projection side for determining the shape of the projection screen 10.
  • the material of the base layer 6 may be a hard material or a soft material.
  • the base layer 6 may be a flat surface or a curved surface shape of 0 to 180°, which is not limited in the present invention.
  • the touch layer 2 is located between the photoelectric conversion layer 1 and the base layer 6 .
  • the insulation may be disposed between the base layer 6 and the touch layer 2 .
  • Layer 4 In order to insulate between the touch layer 2 and the base layer 6 , optionally, as shown in FIG. 4 , the insulation may be disposed between the base layer 6 and the touch layer 2 .
  • the touch layer can sense the user's touch operation, but in order to put the user's touch operation In order to feedback to the change of the projection, the user's touch operation needs to be transmitted through an electrical signal, such as transmission to a projection device.
  • an embodiment of the present invention further provides a controller.
  • the projection screen 10 may further include a controller 7:
  • the controller 7 is electrically connected to the touch layer 2, and is configured to filter out clutter in the output signal of the touch layer 2 by using a filtering algorithm to obtain a touch signal.
  • the controller 7 effectively distinguishes the interference signal from the actual touch signal by using a software filtering algorithm, so as to filter out the interference of the electromagnetic interference on the touch layer 2 to sense the touch operation.
  • the controller 7 is further configured to output the touch signal.
  • the touch signal may be output to the projection device or an intelligent terminal connected to the projection device, so that the projection device or the smart terminal responds correspondingly to the touch signal.
  • the manner in which the controller 7 outputs the touch signal is not limited in the present invention, and may be performed by a wired method or by a wireless method.
  • the projection screen 10 may further include a filter 8:
  • the filter 8 is connected to the converter 3 and the controller 7, respectively, for filtering noise and electromagnetic interference generated by the converter 3 and the controller 7.
  • FIG. 5 is a structural diagram of a system of a projection system according to an embodiment of the present invention.
  • the projection system includes the projection screen 10 and the projection device 20.
  • the projection screen 10 shown in this embodiment may be any projection screen provided by the embodiment of the present invention.
  • the projection device 20 is configured to output projection light according to the projection signal, and perform corresponding adjustment on the projection signal according to the touch signal output by the projection screen 10.
  • the projection device 20 receives the projection screen wirelessly. 10 output touch signals.
  • the embodiment of the present invention further provides a projection device, and the projection device 20 is integrated in the smart terminal, so that the The projection device 20 can perform projection work by means of the high-efficiency processing chip of the smart terminal, thereby improving the working efficiency of the entire projection system and improving the user experience.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

A projection screen and a projection system. A photoelectric conversion layer (1) is located on the outermost layer of the projection screen, which displays the projection, and is used for converting collected light energy into electric energy; an input end of a converter (3) is connected to an output end of the photoelectric conversion layer (1) and is used for adjusting the electric energy converted by the photoelectric conversion layer (1) into electric energy applicable to a touch layer (2); and a power input end of the touch layer (2) is connected to an output end of the converter (3) and is used for realizing a touch control function through the electric energy output by the converter (3). It can be seen that the photoelectric conversion layer (1) comprised by the projection screen can convert projection light during projection into electric energy, the electric energy obtained by conversion can be provided for the touch layer (2) comprised by the projection screen to serve as a working power source, so that the photoelectric conversion layer (1) can continuously convert projection light into electric energy to supply power to the touch layer (2) in the projection process, and thus the projection screen does not need to specifically connect an external power source to the touch layer (2), so that the degree of convenience of use is improved, and the user experience is of a high standard.

Description

一种投影幕和投影***Projection screen and projection system 技术领域Technical field
本发明涉及触控技术领域，尤其是涉及一种可触控投影幕和投影***。The present invention relates to the field of touch technologies, and in particular, to a touchable projection screen and a projection system.
背景技术Background technique
目前，在投影***中已经可以通过触控投影幕实现对投影的信息进行操作。也就是说，当影像被投影到所述投影幕比如投影布或投影板等时，操作者可以直接通过触碰所述投影幕，实现对所述投影幕上显示的影像进行操作和控制。At present, the projected information can be operated by the touch projection screen in the projection system. That is to say, when the image is projected onto the projection screen such as a projection cloth or a projection board, the operator can directly operate and control the image displayed on the projection screen by touching the projection screen.
但是投影幕如果需要实现触控等功能，需要有独立的电源为响应触控的组件供电。由此使得可触控的投影幕在使用时的限制较大，在设置投影幕的位置上必须要有电源插座等为其供电，或者在投影幕上设置沉重的外接电源等。这些限制导致使用起来不方便，灵活度差。However, if the projection screen needs to implement functions such as touch, it needs an independent power supply to supply power to the touch-responsive components. Therefore, the touch-sensitive projection screen has a large limitation in use. In the position where the projection screen is set, a power socket or the like must be provided for power supply, or a heavy external power supply may be disposed on the projection screen. These limitations make it inconvenient to use and have poor flexibility.
发明内容Summary of the invention
为了解决上述技术问题，本发明提供了一种投影幕和投影***，可以将投影光等光能转化为电能，从而不再需要为投影幕额外设置电源。In order to solve the above technical problem, the present invention provides a projection screen and a projection system, which can convert light energy such as projection light into electrical energy, thereby eliminating the need to additionally provide power for the projection screen.
本发明实施例公开了如下技术方案：The embodiment of the invention discloses the following technical solutions:
一种投影幕，所述投影幕包括光电转换层、转换器和触控层：A projection screen comprising a photoelectric conversion layer, a converter and a touch layer:
所述光电转换层位于所述投影幕显示投影一面的最外层，用于将采集的光能转换为电能，所述光能包括投影光；The photoelectric conversion layer is located at an outermost layer of a projection side of the projection screen for converting the collected light energy into electrical energy, and the light energy comprises projection light;
所述转换器的输入端与所述光电转换层的输出端相连，用于将所述光电转换层转换出的电能调整为所述触控层所适用的电能；The input end of the converter is connected to the output end of the photoelectric conversion layer, and is used for adjusting the electric energy converted by the photoelectric conversion layer to the electric energy applicable to the touch layer;
所述触控层的电源输入端与所述转换器的输出端相连，用于通过所述转换器输出的电能实现触控功能。The power input end of the touch layer is connected to the output end of the converter, and is configured to implement a touch function by using electrical energy output by the converter.
优选的，所述光电转换层和所述触控层之间还包括绝缘层，Preferably, an insulating layer is further included between the photoelectric conversion layer and the touch layer.
所述绝缘层，用于将所述光电转换层和所述触控层绝缘；The insulating layer is used to insulate the photoelectric conversion layer from the touch layer;
优选的， Preferably,
所述绝缘层具体为聚对苯二甲酸乙二醇酯PET薄膜。The insulating layer is specifically a polyethylene terephthalate PET film.
优选的，还包括蓄电装置：Preferably, the power storage device is further included:
所述蓄电装置与所述转换器相连，用于当所述转换器输出的电能大于预设电能时，存储所述转换器输出的多余电能，并用于当所述转换器输出的电能小于所述预设电能时，向所述转换器输出所存储的电能，使得所述转换器输出的电能达到所述预设电能。The power storage device is connected to the converter, and is configured to store excess power output by the converter when the power output by the converter is greater than a preset power, and is used to output less power than the converter When the preset electrical energy is described, the stored electrical energy is output to the converter such that the electrical energy output by the converter reaches the preset electrical energy.
优选的，还包括基础层：Preferably, the base layer is further included:
所述基础层位于所述投影幕不显示投影一面的最外层，用于确定所述投影幕的形状；The base layer is located at an outermost layer of the projection screen that does not display a projection side, and is used for determining a shape of the projection screen;
所述触控层位于所述光电转换层与所述基础层之间。The touch layer is located between the photoelectric conversion layer and the base layer.
优选的，所述基础层与所述触控层之间还包括绝缘层。Preferably, an insulating layer is further included between the base layer and the touch layer.
优选的，还包括控制器：Preferably, the controller is further included:
所述控制器与所述触控层电连接，用于通过滤波算法滤除所述触控层输出信号中的杂波，得到触控信号；The controller is electrically connected to the touch layer, and is configured to filter out clutter in the output signal of the touch layer by using a filtering algorithm to obtain a touch signal;
所述控制器，还用于输出所述触控信号。The controller is further configured to output the touch signal.
优选的，还包括滤波器：Preferably, the filter is further included:
所述滤波器分别与所述转换器和所述控制器相连，用于滤除所述转换器和所述控制器产生的噪声和电磁干扰。The filter is coupled to the converter and the controller, respectively, for filtering noise and electromagnetic interference generated by the converter and the controller.
一种投影***，包括投影幕和投影设备：A projection system including a projection screen and a projection device:
所述投影幕为如所述权利要求1至8中任一项所述的投影幕；The projection screen is a projection screen according to any one of claims 1 to 8;
所述投影设备，用于根据投影信号输出投影光，并根据所述投影幕输出的触控信号对所述投影信号进行相应的调整。The projection device is configured to output a projection light according to the projection signal, and perform corresponding adjustment on the projection signal according to the touch signal output by the projection screen.
优选的，Preferably,
所述投影设备集成在智能终端中。The projection device is integrated in the smart terminal.
由上述技术方案可以看出，所述投影幕所包括的光电转换层可以将投影时的投影光转换成电能，转换得到的电能可以提供给所述投影幕所包括的触控层作为工作电源，以使得只要在投影过程中，所述光电转换层可以 持续从投影光中转换出电能为所述触控层供电，导致所述投影幕不再需要专门再为所述触控层连接外接电源，提高了使用的方便程度，用户体验度高。It can be seen from the above technical solution that the photoelectric conversion layer included in the projection screen can convert the projection light during projection into electrical energy, and the converted electrical energy can be provided to the touch layer included in the projection screen as a working power source. So that as long as during the projection process, the photoelectric conversion layer can Continuously converting electrical energy from the projection light to supply power to the touch layer, so that the projection screen no longer needs to be connected to the external power supply for the touch layer, thereby improving the convenience of use and high user experience.
附图说明DRAWINGS
图1为本发明实施例提供的一种投影幕的结构示意图；1 is a schematic structural diagram of a projection screen according to an embodiment of the present invention;
图2为本发明实施例提供的一种投影的示意图；2 is a schematic diagram of a projection according to an embodiment of the present invention;
图3a为本发明实施例提供的一种光电转换层的分布示意图；3a is a schematic diagram of distribution of a photoelectric conversion layer according to an embodiment of the present invention;
图3b为本发明实施例提供的一种光电转换层的分布示意图；3b is a schematic diagram of distribution of a photoelectric conversion layer according to an embodiment of the present invention;
图4为本发明实施例提供的一种投影幕的结构示意图；4 is a schematic structural diagram of a projection screen according to an embodiment of the present invention;
图5为本发明实施例提供的一种投影***的***结构图。FIG. 5 is a structural diagram of a system of a projection system according to an embodiment of the present invention.
具体实施方式detailed description
目前的可触屏投影幕均需要连接外接电源来为实现触控的部分供电，这样投影幕上至少会多出一截电源线或者一块外接电源。使用电源线的投影幕必须设置在有电源接口的位置，对投影幕的使用造成很大的限制。使用外接电源的投影幕工作时间收到外接电源容量的限制，如果忘记充电或者电量用完，直接导致投影幕无法实现触控功能，影响正常工作。为此，本发明实施例提供了一种投影幕，所述投影幕所包括的光电转换层可以将投影时的投影光转换成电能，转换得到的电能可以提供给所述投影幕所包括的触控层作为工作电源，以使得只要在投影过程中，所述光电转换层可以持续从投影光中转换出电能为所述触控层供电，导致所述投影幕不再需要专门再为所述触控层连接外接电源，提高了使用的方便程度，用户体验度高。The current touch screen projection screens need to be connected to an external power supply to supply power to the touch, so that at least one power supply line or one external power supply is provided on the projection screen. The projection screen using the power cord must be placed at the position with the power connector, which imposes a great limitation on the use of the projection screen. The working time of the projection screen using the external power supply is limited by the capacity of the external power supply. If you forget to charge or run out of power, the projection screen will not be able to realize the touch function, which will affect the normal operation. To this end, an embodiment of the present invention provides a projection screen. The photoelectric conversion layer included in the projection screen can convert the projection light during projection into electrical energy, and the converted electrical energy can be provided to the touch included in the projection screen. The control layer is used as a working power source, so that the photoelectric conversion layer can continuously convert electrical energy from the projection light to supply power to the touch layer, so that the projection screen no longer needs to be specifically used for the touch The control layer is connected to an external power supply, which improves the convenience of use and has a high user experience.
由于所述光电转换层的光电转换率可能会随着投影光的亮度变化等原因发生上下波动，由此可能在有些极端情况下，造成转换出的电能不足以让所述触控层维持正常工作，为了避免这种情况的发生，本发明实施例提供了一种储能的方案，在所述投影幕中安装蓄电装置，可以存储所述光电转换层的转换出的、除了向所述触控层供电以外的多余电能，这样当所述光电转换层转换出的电能不足以为所述触控层正常供电时，所述蓄电装置 可以作为辅助，通过所述转换器向所述触控层输出电能，以使得所述触控层能够正常工作，由此可以进一步的提高本发明实施例提供的所述投影幕的可靠性。Since the photoelectric conversion rate of the photoelectric conversion layer may fluctuate up and down according to the change of the brightness of the projection light, etc., it may be that in some extreme cases, the converted electric energy is insufficient to keep the touch layer working normally. In order to avoid the occurrence of the situation, the embodiment of the present invention provides an energy storage solution, in which the power storage device is installed, and the converted photoelectric conversion layer can be stored, except for the touch Controlling excess power other than power supply, such that when the electrical energy converted by the photoelectric conversion layer is insufficient to supply power to the touch layer, the power storage device The auxiliary device can output power to the touch layer through the converter, so that the touch layer can work normally, thereby further improving the reliability of the projection screen provided by the embodiment of the present invention.
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly described in conjunction with the drawings in the embodiments of the present invention. Some embodiments, rather than all of the embodiments, are invented. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
实施例一 Embodiment 1
图1为本发明实施例提供的一种投影幕的结构示意图，所述投影幕10包括光电转换层1、转换器3和触控层2：FIG. 1 is a schematic structural diagram of a projection screen according to an embodiment of the present invention. The projection screen 10 includes a photoelectric conversion layer 1, a converter 3, and a touch layer 2:
所述光电转换层1位于所述投影幕10显示投影一面的最外层，用于将采集的光能转换为电能，所述光能包括投影光。The photoelectric conversion layer 1 is located at an outermost layer of the projection screen 10 on which a projection side is displayed for converting the collected light energy into electrical energy, and the light energy includes projection light.
在进行投影时，由于所述光电转换层1在所述投影幕上的位置，导致所述光电转换层1为所述投影幕10中最先接收到投影来的投影光的一层，如图2所示，图2为本发明实施例提供的一种投影的示意图，图2左侧的为投影幕10，右侧的为进行投影的投影设备20，投影光从所述投影设备20发射到所述投影幕10上。所述光电转换层1除了具有转换光电的能力外，所述光电转换层1的材质还需要满足不影响所述触控层2接收用户的触控操作的条件，可选的，所述光电转换层可以是一层太阳能薄膜层。When the projection is performed, due to the position of the photoelectric conversion layer 1 on the projection screen, the photoelectric conversion layer 1 is the first layer of the projected light received in the projection screen 10, as shown in the figure. 2 is a schematic diagram of a projection according to an embodiment of the present invention. The left side of FIG. 2 is a projection screen 10, and the right side is a projection device 20 for projection. The projection light is emitted from the projection device 20 to The projection screen 10 is on the screen. In addition to the photoelectric conversion layer 1 , the material of the photoelectric conversion layer 1 needs to meet the conditions that do not affect the touch operation of the touch layer 2 to receive the user. Optionally, the photoelectric conversion The layer can be a layer of solar film.
本发明对所述光电转换层1在所述投影幕10上的分布方式不进行限定，可选的，可以是和所述投影幕10的面积相同，也可以是分成多个部分分布在所述投影幕10的不同区间，也可以集中分布在所述投影幕10的中间等。图3a为本发明实施例提供的一种光电转换层的分布示意图，图3a所展示的是将所述光电转换层1分成4个部分分布在所述投影幕10上。图3b为本发明实施例提供的一种光电转换层的分布示意图，图3b所展示的是将所述光电转换层1集中分布在所述投影幕10的中间。The present invention does not limit the distribution manner of the photoelectric conversion layer 1 on the projection screen 10. Alternatively, it may be the same as the area of the projection screen 10, or may be divided into a plurality of parts distributed in the Different sections of the projection screen 10 may be collectively distributed in the middle of the projection screen 10 or the like. FIG. 3a is a schematic diagram showing the distribution of a photoelectric conversion layer according to an embodiment of the present invention. FIG. 3a shows that the photoelectric conversion layer 1 is divided into four parts and distributed on the projection screen 10. FIG. 3b is a schematic diagram of a distribution of a photoelectric conversion layer according to an embodiment of the present invention, and FIG. 3b shows a concentrated distribution of the photoelectric conversion layer 1 in the middle of the projection screen 10.
还需要注意的是，所述光能还可以包括可见光或者自然光，这样所述 投影幕10还可以在光源良好的情况下，比如在灯光充足的室内或阳光充足的室外通过所述光电转换层1转换得到电能。It should also be noted that the light energy may also include visible light or natural light, so that The projection screen 10 can also convert electrical energy through the photoelectric conversion layer 1 in the case where the light source is good, such as in a well-lit room or in a sunny outdoor.
所述转换器3的输入端与所述光电转换层1的输出端相连，用于将所述光电转换层转换1出的电能调整为所述触控层2所适用的电能。The input end of the converter 3 is connected to the output end of the photoelectric conversion layer 1 for adjusting the electric energy converted by the photoelectric conversion layer to the electric energy applicable to the touch layer 2 .
需要说明的是，所述光电转换层1转换得到的电能一般是直流电，而所述触控层2的工作电源是交流电，故需要通过所述转换器3进行直流/交流转换，以及将电压转换成适配于所述触控层的电压。It should be noted that the electric energy converted by the photoelectric conversion layer 1 is generally direct current, and the operating power of the touch layer 2 is alternating current, so DC/AC conversion and voltage conversion are required through the converter 3. A voltage that is adapted to the touch layer.
所述触控层2的电源输入端与所述转换器3的输出端相连，用于通过所述转换器3输出的电能实现触控功能。The power input end of the touch layer 2 is connected to the output end of the converter 3 for implementing a touch function by using the power output by the converter 3.
也就是说，所述触控层2用于感知并定位用户的触控操作位置以及触控操作类型(比如滑动、点击、持续按压等)，感知并定位所述触控操作的方式可以是通过分布在所述触控层2上的金属线进行感知。That is, the touch layer 2 is used to sense and locate the touch operation position of the user and the touch operation type (such as sliding, clicking, continuous pressing, etc.), and the manner of sensing and positioning the touch operation may be The metal lines distributed on the touch layer 2 are perceived.
由本实施例可以看出，所述投影幕所包括的光电转换层可以将投影时的投影光转换成电能，转换得到的电能可以提供给所述投影幕所包括的触控层作为工作电源，以使得只要在投影过程中，所述光电转换层可以持续从投影光中转换出电能为所述触控层供电，导致所述投影幕不再需要专门再为所述触控层连接外接电源，提高了使用的方便程度，用户体验度高。It can be seen from the embodiment that the photoelectric conversion layer included in the projection screen can convert the projection light during projection into electrical energy, and the converted electrical energy can be provided to the touch layer included in the projection screen as a working power source, Therefore, the photoelectric conversion layer can continuously convert the electrical energy from the projection light to supply power to the touch layer, so that the projection screen no longer needs to specifically connect the external power supply to the touch layer, thereby improving The ease of use and the user experience are high.
实施例二 Embodiment 2
本实施例在实施例一的基础上，进一步对所述投影幕10的结构进行进一步的描述。图4为本发明实施例提供的一种投影幕的结构示意图，如图4所示，所述投影幕10的所述光电转换层1和所述触控层2之间还包括绝缘层4，The structure of the projection screen 10 is further described on the basis of the first embodiment. FIG. 4 is a schematic structural diagram of a projection screen according to an embodiment of the present invention. As shown in FIG. 4 , an insulating layer 4 is further disposed between the photoelectric conversion layer 1 and the touch layer 2 of the projection screen 10 .
所述绝缘层4，用于将所述光电转换层1和所述触控层2绝缘。The insulating layer 4 is used to insulate the photoelectric conversion layer 1 and the touch layer 2 .
为了有效的实现绝缘功能，可选的，所述绝缘层具体为聚对苯二甲酸乙二醇酯(Polythylene terephthalate，PET)薄膜。In order to effectively realize the insulating function, the insulating layer is specifically a polyethylene terephthalate (PET) film.
通过所述绝缘层4，可以有效的保证所述光电转换层1和所述触控层2之间不会出现电子干扰或由此导致的短路等情况的发生，提高了所述投影 幕10的可靠性。Through the insulating layer 4, it is possible to effectively ensure that no electronic interference or a short circuit or the like occurs between the photoelectric conversion layer 1 and the touch layer 2, and the projection is improved. The reliability of the curtain 10.
由于所述光电转换层1的光电转换率可能会随着投影光的亮度变化等原因发生上下波动，由此可能在有些极端情况下，造成转换出的电能不足以让所述触控层2维持正常工作，为了避免这种情况的发生，本发明实施例提供了一种储能的方案，如图4所示，所述投影幕10还包括蓄电装置5：Since the photoelectric conversion ratio of the photoelectric conversion layer 1 may fluctuate up and down with the change of the brightness of the projection light, etc., it may be that in some extreme cases, the converted electric energy is insufficient to maintain the touch layer 2 In order to prevent this from happening, the embodiment of the present invention provides a solution for energy storage. As shown in FIG. 4, the projection screen 10 further includes a power storage device 5:
所述蓄电装置5与所述转换器3相连，用于当所述转换器3输出的电能大于预设电能时，存储所述转换器3输出的多余电能，并用于当所述转换器3输出的电能小于所述预设电能时，向所述转换器3输出所存储的电能，使得所述转换器3输出的电能达到所述预设电能。The power storage device 5 is connected to the converter 3 for storing excess power output by the converter 3 when the power output by the converter 3 is greater than a preset power, and is used when the converter 3 When the output electric energy is less than the preset electric energy, the stored electric energy is output to the converter 3 such that the electric energy output by the converter 3 reaches the preset electric energy.
这里所述的预设电能可以设定为所述触控层2正常工作所需的电能。当所述转换器3转换得到的电能超出所述预设电能，过剩的电能如果不进行合理处理，可能会导致***负担，故设置了蓄电装置5后，除了可以存储过剩的电能，还可以当所述光电转换层1转换出的电能不足以为所述触控层2正常供电时，所述蓄电装置5可以作为辅助，通过所述转换器3向所述触控层2输出电能，以使得所述触控层2能够正常工作，由此可以进一步的提高本发明实施例提供的所述投影幕的可靠性。The preset power described herein can be set to the electrical energy required for the touch layer 2 to operate normally. When the electric energy converted by the converter 3 exceeds the preset electric energy, if the excess electric energy is not properly processed, the system may be burdened. Therefore, after the power storage device 5 is installed, in addition to storing excess electric energy, When the electrical energy converted by the photoelectric conversion layer 1 is insufficient to supply power to the touch layer 2, the power storage device 5 can serve as an auxiliary, and output power to the touch layer 2 through the converter 3 to The touch layer 2 can be operated normally, so that the reliability of the projection screen provided by the embodiment of the invention can be further improved.
为了进一步提高所述投影幕10的耐用程度，本发明实施例还提供了一种基础层6，用于确定所述投影幕10的形状，如图4所示，所述投影幕10还包括基础层6：In order to further improve the durability of the projection screen 10, the embodiment of the present invention further provides a base layer 6 for determining the shape of the projection screen 10. As shown in FIG. 4, the projection screen 10 further includes a foundation. Layer 6:
所述基础层6位于所述投影幕10不显示投影一面的最外层，用于确定所述投影幕10的形状。The base layer 6 is located at an outermost layer on which the projection screen 10 does not display a projection side for determining the shape of the projection screen 10.
这里需要说明的是，所述基础层6的材质可以是硬质的材质，也可以是柔软材质，所述基础层6可以是平面或0～180°曲面形状，本发明对此不进行限定。It should be noted that the material of the base layer 6 may be a hard material or a soft material. The base layer 6 may be a flat surface or a curved surface shape of 0 to 180°, which is not limited in the present invention.
所述触控层2位于所述光电转换层1与所述基础层6之间。The touch layer 2 is located between the photoelectric conversion layer 1 and the base layer 6 .
为了将所述触控层2和所述基础层6之间绝缘处理，可选的，如图4所示，所述基础层6与所述触控层2之间还可以设置有所述绝缘层4。In order to insulate between the touch layer 2 and the base layer 6 , optionally, as shown in FIG. 4 , the insulation may be disposed between the base layer 6 and the touch layer 2 . Layer 4.
所述触控层虽然可以感知用户的触控操作，但是为了将用户的触控操 作反馈到对投影的改变，还需要将用户的触控操作通过电信号传输出去，比如传输到投影设备等。为此，本发明实施例还提供了一种控制器。如图4所示，所述投影幕10还可以包括控制器7：The touch layer can sense the user's touch operation, but in order to put the user's touch operation In order to feedback to the change of the projection, the user's touch operation needs to be transmitted through an electrical signal, such as transmission to a projection device. To this end, an embodiment of the present invention further provides a controller. As shown in FIG. 4, the projection screen 10 may further include a controller 7:
所述控制器7与所述触控层2电连接，用于通过滤波算法滤除所述触控层2输出信号中的杂波，得到触控信号。The controller 7 is electrically connected to the touch layer 2, and is configured to filter out clutter in the output signal of the touch layer 2 by using a filtering algorithm to obtain a touch signal.
也就是说，所述控制器7中通过软件滤波算法，有效地区分干扰信号和实际触控信号，从而滤除电磁干扰对所述触控层2感知触控操作上的干扰。That is to say, the controller 7 effectively distinguishes the interference signal from the actual touch signal by using a software filtering algorithm, so as to filter out the interference of the electromagnetic interference on the touch layer 2 to sense the touch operation.
所述控制器7，还用于输出所述触控信号。所述触控信号可以输出到所述投影设备或者与所述投影设备连接的智能终端，以便所述投影设备或者智能终端针对所述触控信号进行对应的响应。所述控制器7输出所述触控信号的方式本发明并不进行限定，可以是通过有线的方式进行传输，也可以是通过无线的方式进行传输。The controller 7 is further configured to output the touch signal. The touch signal may be output to the projection device or an intelligent terminal connected to the projection device, so that the projection device or the smart terminal responds correspondingly to the touch signal. The manner in which the controller 7 outputs the touch signal is not limited in the present invention, and may be performed by a wired method or by a wireless method.
由于所述转换器3和所述控制器7在工作过程中还可能产生一定的噪声和电磁干扰，会对所述投影幕10的工作精度造成一定的影响。为了进一步的提高所述投影幕10的工作精度，如图4所示，所述投影幕10还可以进一步包括滤波器8：Since the converter 3 and the controller 7 may generate certain noise and electromagnetic interference during operation, the working precision of the projection screen 10 is affected to some extent. In order to further improve the working precision of the projection screen 10, as shown in FIG. 4, the projection screen 10 may further include a filter 8:
所述滤波器8分别与所述转换器3和所述控制器7相连，用于滤除所述转换器3和所述控制器7产生的噪声和电磁干扰。The filter 8 is connected to the converter 3 and the controller 7, respectively, for filtering noise and electromagnetic interference generated by the converter 3 and the controller 7.
实施例三 Embodiment 3
图5为本发明实施例提供的一种投影***的***结构图，所述投影***包括所述投影幕10和所述投影设备20。FIG. 5 is a structural diagram of a system of a projection system according to an embodiment of the present invention. The projection system includes the projection screen 10 and the projection device 20.
本实施例中的所示投影幕10可以是本发明实施例所提供的任意一个投影幕。The projection screen 10 shown in this embodiment may be any projection screen provided by the embodiment of the present invention.
所述投影设备20，用于根据投影信号输出投影光，并根据所述投影幕10输出的触控信号对所述投影信号进行相应的调整。The projection device 20 is configured to output projection light according to the projection signal, and perform corresponding adjustment on the projection signal according to the touch signal output by the projection screen 10.
这里需要说明的是，所述投影设备20通过无线的方式接收所述投影幕 10输出的触控信号。It should be noted that the projection device 20 receives the projection screen wirelessly. 10 output touch signals.
为了更加迅速高效的进行投影以及对接收到的所述触控信号进行响应，可选的，本发明实施例还提供了一种投影设备，所述投影设备20集成在智能终端中，这样使得所述投影设备20可以凭借所述智能终端的高效处理芯片进行投影工作，提高了整个投影***的工作效率，提高了用户的体验度。In order to perform the projection and the response to the received touch signal, the embodiment of the present invention further provides a projection device, and the projection device 20 is integrated in the smart terminal, so that the The projection device 20 can perform projection work by means of the high-efficiency processing chip of the smart terminal, thereby improving the working efficiency of the entire projection system and improving the user experience.
通过以上的实施方式的描述可知，本领域的技术人员可以清楚地了解到上述实施例方法中的全部或部分步骤可借助软件加通用硬件平台的方式来实现。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者诸如媒体网关等网络通信设备)执行本发明各个实施例或者实施例的某些部分所述的方法。It can be clearly understood by those skilled in the art that all or part of the steps in the foregoing embodiments may be implemented by means of software plus a general hardware platform. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM or a disk. An optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network communication device such as a media gateway) to perform the methods described in various embodiments of the present invention or portions of the embodiments.
需要说明的是，本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于设备及***实施例而言，由于其基本相似于方法实施例，所以描述得比较简单，相关之处参见方法实施例的部分说明即可。以上所描述的设备及***实施例仅仅是示意性的，其中作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。It is to be noted that the various embodiments in the present specification are described in a progressive manner, and the same similar parts between the various embodiments may be referred to each other, and each embodiment focuses on different embodiments from other embodiments. At the office. In particular, for the device and the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment. The apparatus and system embodiments described above are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.
以上所述仅是本发明的优选实施方式，并非用于限定本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。 The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. It should be noted that a number of modifications and refinements may be made by those skilled in the art without departing from the principles of the invention, and such modifications and modifications are also considered to be within the scope of the invention.

Claims (10)

  1. 一种投影幕，其特征在于，所述投影幕包括光电转换层、转换器和触控层：A projection screen, characterized in that the projection screen comprises a photoelectric conversion layer, a converter and a touch layer:
    所述光电转换层位于所述投影幕显示投影一面的最外层，用于将采集的光能转换为电能，所述光能包括投影光；The photoelectric conversion layer is located at an outermost layer of a projection side of the projection screen for converting the collected light energy into electrical energy, and the light energy comprises projection light;
    所述转换器的输入端与所述光电转换层的输出端相连，用于将所述光电转换层转换出的电能调整为所述触控层所适用的电能；The input end of the converter is connected to the output end of the photoelectric conversion layer, and is used for adjusting the electric energy converted by the photoelectric conversion layer to the electric energy applicable to the touch layer;
    所述触控层的电源输入端与所述转换器的输出端相连，用于通过所述转换器输出的电能实现触控功能。The power input end of the touch layer is connected to the output end of the converter, and is configured to implement a touch function by using electrical energy output by the converter.
  2. 根据权利要求1所述的投影幕，其特征在于，所述光电转换层和所述触控层之间还包括绝缘层，The projection screen of claim 1 , further comprising an insulating layer between the photoelectric conversion layer and the touch layer.
    所述绝缘层，用于将所述光电转换层和所述触控层绝缘；The insulating layer is used to insulate the photoelectric conversion layer from the touch layer;
  3. 根据权利要求2所述的投影幕，其特征在于，The projection screen of claim 2, wherein
    所述绝缘层具体为聚对苯二甲酸乙二醇酯PET薄膜。The insulating layer is specifically a polyethylene terephthalate PET film.
  4. 根据权利要求1所述的投影幕，其特征在于，还包括蓄电装置：The projection screen of claim 1 further comprising a power storage device:
    所述蓄电装置与所述转换器相连，用于当所述转换器输出的电能大于预设电能时，存储所述转换器输出的多余电能，并用于当所述转换器输出的电能小于所述预设电能时，向所述转换器输出所存储的电能，使得所述转换器输出的电能达到所述预设电能。The power storage device is connected to the converter, and is configured to store excess power output by the converter when the power output by the converter is greater than a preset power, and is used to output less power than the converter When the preset electrical energy is described, the stored electrical energy is output to the converter such that the electrical energy output by the converter reaches the preset electrical energy.
  5. 根据权利要求1所述的投影幕，其特征在于，还包括基础层：The projection screen of claim 1 further comprising a base layer:
    所述基础层位于所述投影幕不显示投影一面的最外层，用于确定所述投影幕的形状；The base layer is located at an outermost layer of the projection screen that does not display a projection side, and is used for determining a shape of the projection screen;
    所述触控层位于所述光电转换层与所述基础层之间。The touch layer is located between the photoelectric conversion layer and the base layer.
  6. 根据权利要求5所述的投影幕，其特征在于，所述基础层与所述触控层之间还包括绝缘层。The projection screen according to claim 5, further comprising an insulating layer between the base layer and the touch layer.
  7. 根据权利要求1所述的投影幕，其特征在于，还包括控制器：The projection screen of claim 1 further comprising a controller:
    所述控制器与所述触控层电连接，用于通过滤波算法滤除所述触控层输出 信号中的杂波，得到触控信号；The controller is electrically connected to the touch layer, and is configured to filter the touch layer output by using a filtering algorithm. The clutter in the signal obtains the touch signal;
    所述控制器，还用于输出所述触控信号。The controller is further configured to output the touch signal.
  8. 根据权利要求7所述的投影幕，其特征在于，还包括滤波器：The projection screen of claim 7 further comprising a filter:
    所述滤波器分别与所述转换器和所述控制器相连，用于滤除所述转换器和所述控制器产生的噪声和电磁干扰。The filter is coupled to the converter and the controller, respectively, for filtering noise and electromagnetic interference generated by the converter and the controller.
  9. 一种投影***，其特征在于，包括投影幕和投影设备：A projection system comprising a projection screen and a projection device:
    所述投影幕为如所述权利要求1至8中任一项所述的投影幕；The projection screen is a projection screen according to any one of claims 1 to 8;
    所述投影设备，用于根据投影信号输出投影光，并根据所述投影幕输出的触控信号对所述投影信号进行相应的调整。The projection device is configured to output a projection light according to the projection signal, and perform corresponding adjustment on the projection signal according to the touch signal output by the projection screen.
  10. 根据权利要求9所述的***，其特征在于，The system of claim 9 wherein:
    所述投影设备集成在智能终端中。 The projection device is integrated in the smart terminal.
PCT/CN2014/089573 2014-10-27 2014-10-27 Projection screen and projection system WO2016065510A1 (en)

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CN103135845A (en) * 2012-09-12 2013-06-05 友达光电股份有限公司 Sensing display device and touch detection method thereof
CN103676361A (en) * 2013-12-24 2014-03-26 京东方科技集团股份有限公司 Display screen, manufacturing method of display screen, and display device
CN104063090A (en) * 2014-06-05 2014-09-24 京东方科技集团股份有限公司 Touch panel and touch control display device
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Publication number Priority date Publication date Assignee Title
JP2010152226A (en) * 2008-12-26 2010-07-08 Fujikura Ltd Projection screen
CN202145301U (en) * 2011-05-05 2012-02-15 展触光电科技股份有限公司 Touch panel with photoelectric conversion function and touch electronic device
CN102984488A (en) * 2011-09-05 2013-03-20 株式会社理光 Projection system, projection apparatus, sensor device, power generation control method, and computer program product
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