WO2015109671A1 - 投影系统及投影系统的遥控方法 - Google Patents

投影系统及投影系统的遥控方法 Download PDF

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Publication number
WO2015109671A1
WO2015109671A1 PCT/CN2014/075874 CN2014075874W WO2015109671A1 WO 2015109671 A1 WO2015109671 A1 WO 2015109671A1 CN 2014075874 W CN2014075874 W CN 2014075874W WO 2015109671 A1 WO2015109671 A1 WO 2015109671A1
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WO
WIPO (PCT)
Prior art keywords
display
remote control
projection screen
projection
light beam
Prior art date
Application number
PCT/CN2014/075874
Other languages
English (en)
French (fr)
Inventor
李耀辉
封小华
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/429,765 priority Critical patent/US9753643B2/en
Publication of WO2015109671A1 publication Critical patent/WO2015109671A1/zh

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Classifications

    • 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
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0489—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using dedicated keyboard keys or combinations thereof
    • G06F3/04892—Arrangements for controlling cursor position based on codes indicative of cursor displacements from one discrete location to another, e.g. using cursor control keys associated to different directions or using the tab key
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • 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]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3188—Scale or resolution adjustment
    • 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]
    • H04N9/3191—Testing thereof
    • H04N9/3194—Testing thereof including sensor feedback
    • 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
    • G03B2206/00—Systems for exchange of information between different pieces of apparatus, e.g. for exchanging trimming information, for photo finishing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/048—Indexing scheme relating to G06F3/048
    • G06F2203/04801—Cursor retrieval aid, i.e. visual aspect modification, blinking, colour changes, enlargement or other visual cues, for helping user do find the cursor in graphical user interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42221—Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42224—Touch pad or touch panel provided on the remote control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42226—Reprogrammable remote control devices
    • H04N21/42227—Reprogrammable remote control devices the keys being reprogrammable, e.g. soft keys
    • H04N21/42228—Reprogrammable remote control devices the keys being reprogrammable, e.g. soft keys the reprogrammable keys being displayed on a display screen in order to reduce the number of keys on the remote control device itself

Definitions

  • the present invention relates to the field of touch technologies, and in particular, to a projection screen, a remote terminal projection device, a display device, a projection system, and a remote control method of a projection system.
  • the projection system can project the image displayed by the display device onto the projection screen for display, and change the display content on the projection screen by changing the display content displayed on the display device.
  • remote remote control technology is inevitably applied in the projection system.
  • the remote operation of the projection device can be realized, and the remote operation of the display device can be realized, but the remote operation of the projection screen cannot be realized.
  • An object of the present invention is to provide a remote control method for a projection screen, a remote control terminal, a projection device, a display device, a projection system, and a projection system, so as to solve the problem that the projection screen cannot be remotely operated in the conventional projection system.
  • the present invention provides a projection screen provided with a signal line that is arranged in a cross arrangement, a light sensor that is electrically connected to the signal line, and a signal processor that receives the sensing signal transmitted by the signal line. ;
  • the light sensor is configured to sense a light beam projected by the remote terminal for determining a remote control area;
  • the signal line is configured to transmit an induction signal generated after the light beam sensed by the light sensing sensor to the signal processor;
  • the signal processor is configured to determine position information of a beam irradiation position perceived by the light sensor according to the sensing signal transmitted by the signal line, and send the position information to a designated device.
  • a light sensing sensor capable of sensing a specific wavelength light beam emitted by the remote control terminal and the projection device is disposed on the projection screen provided in the embodiment of the present invention, and the sensing signal generated by the light sensing sensor after sensing the light beam is transmitted to the signal processor through the signal line.
  • the signal processor can determine the corresponding position information according to the received light sensing signal and transmit the corresponding position information to the corresponding device, so that the remote control region can be determined according to the position information of the light beam sensing by the light sensor determined by the signal processor.
  • the remote control operation can be realized according to the operation instruction transmitted by the remote control terminal, and finally the remote operation of the projection screen is realized, giving the user a feeling of remote control and touch.
  • the specified device includes: a display device and/or a projection device; the signal processor is specifically configured to: send the location information to a designated device, so that the specified device determines according to the location information Remote control area.
  • the light sensor is further configured to: sense a light beam projected by the projection device to determine a light beam of the display area; and the signal processor is further configured to: project the light beam projected by the determined projection device sensed by the light sensor
  • the position information of the irradiation position is transmitted to the projection device to enable the projection device to determine the display region based on the position information of the light beam projected by the projection device sensed by the light sensor, thereby achieving flexible adjustment of the display region on the projection screen.
  • the signal line includes signal lines arranged in the horizontal direction and signal lines arranged in the vertical direction to make the determination of the position information more accurate.
  • the present invention provides a remote control terminal comprising a beam emitter and an instruction key, wherein:
  • the light beam emitter is configured to project a light beam of a set wavelength to the projection screen; and the command key is configured to send an operation instruction to the display device.
  • the remote control terminal provided by the present invention projects a beam of a set wavelength to a projection screen through a beam emitter, thereby enabling the projection screen to sense the photo of the set wavelength. And transmitting the position information of the illumination to the display device, so that the display device can determine the remote control area, and send an operation instruction to the display device through the instruction key, thereby enabling the display device to perform corresponding operations and realizing the remote operation.
  • the remote control terminal further includes: a switch for controlling whether the remote control terminal projects a light beam to the projection screen, and the switch can effectively control whether the remote control terminal performs beam emission, and when the beam emission is not required, the switch is turned off, Save power.
  • the beam emitter is configured to: emit a visible light beam and/or an invisible light beam to the projection screen.
  • the remote control terminal further includes a switch for controlling whether the remote control terminal projects a light beam to the projection screen.
  • the beam emitter emits a visible light beam to the projection screen, which enables the user to determine the direction of the beam emitted by the beam emitter according to the visible beam, and to emit an invisible beam by projecting the invisible beam, the invisible beam can be determined The position of the beam emitted by the beam emitter.
  • a projection apparatus comprising:
  • a beam emitter for emitting a beam of a set wavelength to the projection screen
  • the position information is position information of the position of the light beam projected by the projection device sensed by the light sensor, and the light beam emitted by the light beam emitter is controlled to be on the projection screen
  • the display area is set to the shape.
  • the beam emitter emits a beam of a set wavelength to the projection screen
  • the controller controls the beam emitted by the beam emitter according to the beam irradiation position information fed back by the projection screen to make the projection screen
  • the display area is set to a shape, allowing the display area on the projection screen to be flexibly adjusted.
  • the beam emitter is specifically configured to: project a light beam of a first wavelength perceived by a light sensing sensor disposed on the projection screen to the projection screen for displaying related display content; and projecting to the projection screen for determining the display area a light beam of a second wavelength, the light beam of the second wavelength is a light perceived by a light sensing sensor disposed on the projection screen, and the light beam of the second wavelength is located at a display of the display content on the projection screen At the edge of the region, the pattern formed by sequentially arranging the positions of the light beams of the second wavelength is a set pattern.
  • At least one beam emitter is disposed at each of the four corners of the projection device.
  • a beam of different wavelengths is emitted by the beam emitter to distinguish between a projection beam for displaying the display content and an adjustment beam for performing display area adjustment.
  • the light beam of the first wavelength is a light beam that cannot be perceived by the light sensor, so that it can be used for projection display
  • the light beam of the second wavelength can be perceived by the light sensor and disposed at the edge of the display area
  • the pattern formed by the positional connection is a set pattern, so that the projection device can not only flexibly adjust the display area according to the irradiation position of the second wavelength, but also the position of the light beam disposed at the edge of the display area is sequentially connected.
  • the composed graph is a set graph, which makes the adjustment of the display area more precise.
  • a display device including:
  • a transceiver configured to acquire position information of a light beam projected by a remote control terminal sensed by the light sensing sensor on the projection screen, and receive an operation instruction sent by a command key of the remote control terminal;
  • a processor configured to determine a remote control area according to the location information received by the transceiver, and perform a remote operation according to the operation instruction.
  • the transceiver receives the beam irradiation position information transmitted by the projection screen, and receives an operation instruction sent by the instruction key of the remote control terminal, and the processor can determine the remote control area according to the received position information, and according to the The operation command transmitted by the remote control terminal performs corresponding operations, and finally realizes the remote operation of the projection screen, giving the user a feeling of remote control and touch.
  • processor is specifically configured to:
  • the icon or control is determined as a remote control area
  • the cursor is displayed at a corresponding position of the light beam irradiation position projected by the remote sensor terminal sensed by the light sensor, and the area covered by the cursor is determined as the remote control area.
  • the processor is further configured to:
  • the spot is displayed at the beam irradiation position emitted by the remote terminal sensed by the projection screen to prevent the visible light beam from being recognized on the projection screen, thereby making it easier for the user to determine the position pointed by the light beam of the remote control terminal.
  • a projection system including a projection device, a projection screen, a remote control terminal, and a display device, wherein:
  • a projection device configured to emit a light beam of a set wavelength to the projection screen, and project related content displayed on the display device onto the projection screen;
  • a projection screen configured to receive a light beam emitted by the projection device, and a light beam projected by the remote control terminal for determining the remote control area, and send position information of the light beam irradiation position to the display device;
  • a remote control terminal configured to project a light beam of a set wavelength to the projection screen, and send an operation instruction to the display device
  • a display device for determining a remote control area according to the position information of the light beam irradiation projected by the remote control terminal determined by the projection screen, and performing the remote control operation according to an operation instruction sent by the remote control terminal.
  • the projection system receives the illumination of the specific wavelength beam emitted by the remote control terminal and the projection device on the projection screen, and determines the position information of the corresponding beam illumination, so that the display device can project the beam projected by the remote terminal according to the projection screen.
  • the position information of the illumination is determined by the remote control area, and the remote control operation is realized according to the operation instruction transmitted by the remote control terminal, thereby finally realizing the remote operation of the projection screen, giving the user a feeling of remote control and touch.
  • the projection device is specifically configured to: Projecting a light beam of a first wavelength for displaying an associated display content to a projection screen, the light beam of the first wavelength being a light beam perceived by a light sensor that is not disposed on the projection screen;
  • the projection screen is specifically configured to:
  • the projection device is capable of determining a display area based on position information of a beam irradiation position of the second wavelength.
  • Projecting a beam of different wavelengths to the projection screen by the projection device not only enables projection display of the display content on the display device, but also flexible adjustment of the display area on the projection screen.
  • a remote control method of a projection system wherein the projection system comprises a projection device, a projection screen, a remote control terminal, and a display device, and the remote control method comprises:
  • the projection device determines, according to the first location information, a display area on the projection screen displaying the related display content
  • the display device establishes a mapping relationship between the display position of the display content on the projection screen and the display position on the display device according to the determined display area;
  • the display device determines the remote control area according to the received second location information and the mapping relationship
  • the remote operation is performed according to the operation instruction.
  • the first location information is a beam illumination location that is perceived by the light sensor of the projection screen and located at an edge position of the region where the display content is located.
  • the projection device is connected to the light beam irradiation position at the edge position of the region where the display content is located, and the area of the set graphic is used as the display area.
  • the display device determines a mapping relationship between the display position of the display content on the projection screen and the display position on the display device, and the following manner may be adopted:
  • a mapping relationship between the display position of the display content on the projection screen and the display position on the display device is determined based on the determined display ratio.
  • the display device determines the remote control area according to the received second location information and the mapping relationship, where the following manner may be adopted:
  • the display device determines the icon or control as the remote control area If not, the display device causes the second position to display the cursor at the corresponding position of the display area, and determines the cursor coverage as the remote control area.
  • the projection screen can also transmit the second location information to the projection device, and the remote control region is determined by the projection device, and then transmitted to the display device.
  • FIG. 1 is a schematic structural diagram of a projection system according to an embodiment of the present invention.
  • FIGS. 2A-2B are schematic diagrams showing the structure of a remote control terminal according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a projection screen according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a projection apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • FIG. 6 is a flowchart of operation of a remote control method according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.
  • the embodiment of the present invention is applied to the projection system shown in Fig. 1, which includes a projection screen 1, a projection device 2, a remote control terminal 3, and a display device 4.
  • the projection device 2 is configured to emit a light beam of a set wavelength to the projection screen 1, and project related content displayed on the display device 4 onto the projection screen 1.
  • a projection screen 1 for receiving a light beam emitted by the projection device 2 to display related content displayed on the display device; and for receiving a light beam for determining the remote control region projected by the remote control terminal 3, and determining a beam of light projected by the remote control terminal Location location information.
  • the remote terminal 3, ⁇ projects a light beam of a set wavelength to the projection screen 1, and sends an operation command to the display device 4.
  • the display device 4 is configured to determine the remote control area based on the position information of the light beam illumination projected by the remote control terminal 3 determined by the projection screen 1, and perform the remote control operation according to the operation instruction sent by the remote control terminal 3.
  • the projection device 2 is specifically configured to: project a light beam of a first wavelength to display the related display content to the projection screen 1, and the light beam of the first wavelength is not set on the projection screen. a light beam perceived by the light sensor; and a light beam for projecting the second wavelength of the display area to the projection screen 1, and displaying the position on the projection screen 1 according to the position information of the light beam irradiation position of the second wavelength transmitted by the projection device 2
  • the area is set to shape.
  • the projection screen 1 is specifically configured to: receive the light beam of the first wavelength, display the display content displayed by the display device 4, realize projection display of the display content on the display device, and receive the light beam of the second wavelength, and receive the received light beam
  • the positional information of the beam irradiation position of the second wavelength is transmitted to the projection device 2, so that the projection device 2 can determine the display region based on the positional information of the beam irradiation position of the second wavelength, thereby achieving flexible adjustment of the display region on the projection screen.
  • the remote control terminal 3 can transmit an operation instruction to the display device 4, and can transmit a light beam for determining a specific wavelength of the remote control region to the projection screen 1.
  • the remote control terminal 3 includes a beam emitter 301 and an instruction key 302, as shown in FIG. 2A.
  • the beam emitter 301 is configured to project a light beam of a set wavelength to the projection screen; and the command key 302 is configured to send an operation instruction to the display device 4.
  • the remote control terminal 3 is different from the conventional remote control terminal in that the remote control terminal 3 includes a beam emitter 301, which can be disposed at the top end of the remote control terminal. It can also be set in other parts of the remote control terminal.
  • the light beam emitted by the beam emitter 301 of the remote terminal 3 in the embodiment of the present invention can be perceived by a light sensor provided on the projection screen.
  • the beam emitter 301 of the remote control terminal 3 can emit two kinds of visible light beams and/or invisible light beams, and the visible light beam can be recognized by the user's meat warm, so that the user can determine the direction pointed by the light beam, but
  • the effect of the visible beam on the position of the beam of light emitted by the remote control terminal for determining the remote control region is set to be undetectable by the light sensor on the projection screen.
  • the invisible light beam can be perceived by the light sensor on the projection screen, and the position information of the light beam irradiation position can be determined on the projection screen for the determination of the remote control area.
  • the ffi can be set on the remote control terminal 3 to control whether or not the switch 303 for determining the light beam of the remote control area is transmitted to the projection screen, as shown in Fig. 2B.
  • the switch 303 is turned on, and the switch 303 can be turned off when not needed to save power.
  • the remote control terminal 3 further includes an instruction key 302.
  • the operation command is sent to the display device by operating the instruction key 302.
  • the remote control area is determined by the illumination position of the visible light beam emitted by the remote control terminal on the projection screen, and the light beam emitted by the light beam emitter 301 of the remote control terminal is also irradiated on the projection screen by the display device. The position of the spot displayed at the position is determined.
  • the command key 302 can be directly pressed to cause the remote control terminal to send a remote control command.
  • the projection screen 1 provided in the embodiment of the present invention includes thousands of signal lines 101, a light sensor 102, and signal processing disposed on the projection screen.
  • the device 103 is as shown in FIG.
  • the signal lines 101 are arranged alternately and electrically connected to the photo sensor 102.
  • the preferred signal lines 101 are arranged in a grid form, and the light sensor 102 is disposed at the grid node and electrically connected to the signal line 101 to improve the accuracy of the position information determination.
  • the light sensor 102 can be disposed on the surface of the projection screen 1 to sense the illumination of the light beam of the set wavelength, and the light beam can be a light beam or a projection device projected by the remote control terminal 3 for determining the remote control area. 2 Projected light beam for determining the display area.
  • the signal line 101 in the embodiment of the present invention includes the signal line 1011 arranged in the horizontal direction and the signal line 1012 arranged in the vertical direction, and the signal line 1011 arranged in the horizontal direction and the vertical direction
  • the arranged signal lines 1012 are horizontally and vertically staggered and arranged in a grid form, so that the signal processor 103 can more accurately determine the position of the beam illumination.
  • the signal processor 103 receives signals.
  • the sensing signal transmitted by the line 101 determines the position information of the beam irradiation position perceived by the light sensor according to the sensing signal, and transmits the determined position information to the designated device.
  • the signal processor 103 is electrically connected to the transversely interleaved signal line 101, and receives the sensing signal generated by the transmitted light sensing sensor 102 after being irradiated by the light beam.
  • the signal processor 103 is configured according to the signal processor 103.
  • the sensing signal determines positional information of the beam irradiation position perceived by the light sensor and transmits it to the display device 4 and/or the projection device 2.
  • a device capable of determining a remote control region according to relevant position information transmitted by the signal processor 103 may be disposed in the display device 4 to enable the display device 4 to be based on position information of a light beam projected by the remote control terminal sensed by the light sensor. Determine the remote control area.
  • a device capable of determining a remote control region according to relevant position information transmitted by the signal processor 103 may be disposed in the projection device 2, and then transmitted through the data transmission in the projection device and the display device 4, and the determined remote control region is transmitted. Give the display device a subsequent remote control operation.
  • the light sensor 102 can sense the light beam projected by the projection device 2 for determining the display area, and the signal processor 103 receives the projection device 2 sensed by the light sensor 102 transmitted by the signal line 101.
  • the sensing signal generated by the illumination of the light beam determines the position information of the light beam irradiation position perceived by the light sensor according to the sensing signal, and transmits the determined position information to the projection device 2, so that the projection device 2 can be based on the light sensor 102.
  • the positional information of the light beam projected by the perceived projection device 2 determines the display area.
  • the signal processor 103 when the signal processor 103 sends the location information to the display device 4 and/or the projection device 2, it can be transmitted by wireless transmission or wired transmission.
  • the projection apparatus 2 in the embodiment of the present invention includes a beam emitter 201 and a controller 202, as shown in FIG.
  • the beam emitter 201 in the embodiment of the present invention is configured to emit a beam of a set wavelength to a projection screen.
  • the controller 202 controls the light beam emitted by the beam emitter 201 to display on the projection screen 1 according to the position information of the light beam projected by the projection device 2 sensed by the light sensor 102 transmitted from the signal processor 103 of the projection screen 1.
  • the area is set to shape.
  • At least one of the four corners of the projection device 2 is provided with a beam emitter 201, i.e., each of the four corners is provided with at least one beam emitter to enhance the projection effect.
  • the light sent by the beam emitter 201 of the projection device 2 in the embodiment of the present invention may be a light beam projected to the projection screen 1 for displaying a first wavelength of the relevant display content; and projected onto the projection screen 1 for determination.
  • a light beam of a second wavelength of the display area is a light beam that is not sensible to the light sensor 102 disposed on the projection screen 1, and the light beam of the first wavelength is used to display related display content on the display device 4. Displayed on the projection screen 1.
  • the light beam of the second wavelength is a light beam that can be perceived by the light sensor 102 disposed on the projection screen 1, and the light beam of the second wavelength is located at an edge of the display area, and the display area is displayed on the projection screen 1.
  • the displayed content is displayed, and the pattern formed by sequentially arranging the positions of the light beams of the second wavelength is a set pattern.
  • the light beam of the second wavelength can be perceived by the light sensor 02 on the projection screen 1 and generate an induced signal, and the sensing signal is transmitted to the signal processor 103 through the signal line 101, and the signal processor receives the signal according to the signal.
  • the detected signal can determine the corresponding position information and send the position information to the controller 202 of the projection device 2.
  • the controller 202 can control the beam emitted by the beam emitter 201 according to the position information.
  • the display area on the projection screen 1 is set to a shape.
  • the shape of the above-mentioned configuration in the embodiment of the present invention may be a rectangle, and ffi may be other shapes, which is not limited in the embodiment of the present invention.
  • the set pattern is preferably a rectangle, so that the display area on the projection screen 1 is a rectangle, and the rectangle is a graphic that can be easily adjusted to be proportional to the display content displayed on the display device 4.
  • the ratio of the display position of the display content on the projection screen 1 to the display position on the display device 4 can be better determined to more accurately determine the remote control area.
  • the flexible display of the display area on the projection screen can be performed by the light beam of the second wavelength perceived by the light sensing sensor disposed on the projection screen at the edge of the display area in the embodiment of the present invention.
  • the display device 4 in the embodiment of the present invention includes a transceiver 401 and a processor 402, as shown in FIG.
  • the transceiver 401 is configured to receive the position information of the light beam projected by the remote control terminal 3 sensed by the light sensing sensor 102 and transmitted by the signal processor 103 of the projection screen 1; The operation command sent by the command key 302.
  • the processor 402 is configured to determine a remote control area according to the location information received by the transceiver 401, and perform a remote operation according to the received operation instruction.
  • the processor 402 can establish a mapping relationship between the display position of the related display content on the projection screen 1 and the display position on the display device 4 according to the display area projected by the projection device onto the projection screen 1.
  • A The number of the signal lines 101 1 arranged in the horizontal direction included in the display area on the projection screen 1 and the number of the signal lines 1 012 arranged in the vertical direction are acquired.
  • mapping relationship between the display position of the display content on the projection screen 1 and the display position on the display device 4 is determined based on the display ratio determined as described above.
  • the processor 402 determines the remote control area according to the location information received by the transceiver 401, and may adopt the following preferred manner:
  • the icon or control is determined as a remote control area
  • the cursor is displayed at a corresponding position of the light beam irradiation position projected by the remote sensor terminal 3 sensed by the light sensor 102, and the area covered by the cursor is determined as the remote control area.
  • the processor 402 is further configured to: in the projection screen, in order to enable the user to better define whether the position of the remote control terminal 3 for determining the position of the light beam irradiated by the remote control area is the desired position.
  • a perceived spot is displayed at the beam irradiation position emitted by the remote terminal 3 that is perceived.
  • the above projection system provided by the embodiment of the present invention provides a light sensing sensor capable of sensing a specific wavelength light beam emitted by the remote control terminal and the projection device on the projection screen, and sensing the light sensing sensor to generate an induced signal after the light beam is irradiated through the signal line.
  • the signal processor Transmitted to the signal processor, the signal processor can determine the corresponding position information according to the received light sense signal and transmit it to the display device and the projection device, so that the display device can determine the remote control region according to the received position information, and according to the remote control
  • the operation command transmitted by the terminal realizes the remote operation, and finally realizes the remote operation of the projection screen, giving the user a feeling of remote control and touch.
  • the process of implementing the remote control method in the embodiment of the present invention includes:
  • the first location information in the embodiment of the present invention is a beam illumination position at an edge position of the area where the display content is located, which is perceived by the light sensing sensor of the projection screen.
  • the projection device determines, according to the first position information, a display area on the projection screen displaying the related display content.
  • the first location information is a beam illumination position that is perceived by the light sensor of the projection screen and located at an edge position of the region where the display content is located, and the projection device is located according to an edge position of the region where the display content is located.
  • the line between the beam irradiation positions and the area where the set pattern is formed serves as the display area.
  • the display device establishes a mapping relationship between the display position of the display content on the projection screen and the display position on the display device according to the display area determined in S102.
  • the display device determines the mapping relationship between the display position of the display content on the projection screen and the display position on the display device, and may adopt the following manner: A: Acquire the horizontal direction included in the display area The number of signal lines and the number of signal lines arranged in the vertical direction.
  • a mapping relationship between the display position of the display content on the projection screen and the display position on the display device is determined according to the determined display ratio.
  • SI 04 When the projection screen receives the light beam emitted by the remote control terminal for determining the remote control area, the second position information of the received beam irradiation position is transmitted to the display device.
  • the display device determines the remote control area according to the received second location information and the mapping relationship.
  • the display device determines the remote control area according to the received second location information and the mapping relationship, and may adopt the following manner:
  • the display device determines the icon or control as the remote control area.
  • the display device causes the second position to display a cursor at the corresponding position of the display area, and determines the cursor coverage as the remote control area.
  • the projection screen can also transmit the second position information to the projection device, and the remote control region is determined by the projection device, and then transmitted to the display device.
  • the operation instruction in the embodiment of the present invention is realized by operating an instruction key of the remote control terminal.
  • the operation instruction includes any operation instruction similar to that that can be issued on the touch screen terminal, such as: clicking, double-clicking, long-pressing, and sliding operation sliding in all directions from a starting position, etc., by clicking the command, by pressing once
  • the instruction key is realized.
  • the double-click instruction can be realized by pressing the instruction key twice, and the sliding operation can be performed by pressing and holding the instruction key.
  • the display device performs a corresponding operation according to the above operation instruction, for example: double-clicking the icon to open the corresponding application, sliding from right to left to turn the page, and sliding down to the upper to enlarge the area covered by the sliding.
  • the remote control area may be highlighted.
  • the remote control area may be displayed as a more distinct color, a shadow, or a color difference from the original content of the remote control area. Color, to prompt the user, to facilitate the ffi household to determine whether the remote control area is the desired remote control area.
  • a display device with an intelligent operating system is used as a display device, a projection device is a projector, and a remote control terminal is a remote controller.
  • the projection screen is a projection screen having the above functions as an example.
  • the display can be connected to the network, and the connection between the projection screen and the remote controller is realized by wireless technology.
  • the first step is to activate the display and the projector.
  • the projection screen displays various graphic selection interfaces displayed on the display, such as the second step of "TV program", “music", “picture”, etc., and the switch of the remote control is turned on.
  • a beam emitter disposed on the remote controller emits a visible beam and/or an invisible beam and is illuminated on the projection screen.
  • the invisible beam is set to be sensed by the light sensor on the projection screen.
  • the light sensing sensor illuminated by the invisible light beam on the projection screen senses the illumination of the light beam, and the electrical parameters (capacitance, resistance, voltage, etc.) change, and the position where the change occurs, that is, the position information of the light beam irradiation position passes through
  • the signal lines arranged in the array are passed to the display with the smart operating system installed.
  • the signal line senses the change thereof, and obtains the position where the light sensor on the signal line arranged in the array changes (the signal line is horizontally and vertically staggered, and the horizontal direction is the horizontal coordinate system).
  • the longitudinal direction is the ⁇ -axis direction in the horizontal coordinate system
  • the position to be illuminated can be determined, and the coordinate information of the illuminated position is determined by the position, and the display icon corresponding to the coordinate can be determined by the coordinate information
  • the display with the smart operating system determines the remote control area based on the received location information.
  • the display with the smart operating system is used as the determined remote control area by displaying the display area of the display icon or the control on the coordinate corresponding to the position information according to the position information transmitted by the projection screen.
  • the display with the smart operating system installed in the embodiment of the present invention can display a spot (or shadow) at a position where the determined remote control area is located, so that the user knows the position of the remote control on the projection screen.
  • the display installed with the smart operating system receives the operation instruction sent by the remote controller, the remote operation is performed according to the operation instruction.
  • the invisible light beam is irradiated onto the "music" icon, the location information of the "music” icon is transmitted to the display on which the smart operating system is installed, and the display with the smart operating system is considered to be the remote control corresponding to the display area of the "music" icon.
  • the command button 302 of the remote controller it is equivalent to clicking the "Music” icon, and then the corresponding click operation is performed.
  • there are many song icons displayed which are displayed in many layouts (Cluster Left to Right, 1 Edition, 2 Edition, 3 ⁇ .
  • the projection screen, the projection device, the projection system and the remote control method provided in the embodiments of the present invention provide a light sensor that can sense a specific wavelength beam emitted by the remote terminal and the projection device on the projection screen, and the light sensor is transmitted through the signal line
  • the sensing signal generated after sensing the beam illumination is transmitted to the signal processor, and the signal processor can determine the corresponding position information according to the received light sensing signal and transmit the corresponding position information to the display device and the projection device, so that the display device can be based on the received position information.
  • the remote control area is determined, and the remote control operation is realized according to the operation instruction transmitted by the remote control terminal, thereby finally realizing the remote operation of the projection screen, giving the user a feeling of remote control and touch.

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Abstract

一种投影系统，包括投影屏幕（1）、投影装置（2）、遥控终端（3）和显示设备（4）。投影屏幕（1）接收到投影装置（2）投射的光束时，将接收到的光束照射位置的第一位置信息向投影装置（2）传输；投影装置（2）根据第一位置信息，确定显示区域；显示设备（4）根据显示区域建立投影屏幕（1）上与在显示设备（4）上的显示位置的映射关系；投影屏幕（1）接收到遥控终端（3）发射的光束时，将光束照射位置的第二位置信息向显示设备（4）传输；显示设备（4）根据第二位置信息以及映射关系，确定遥控区域。

Description

本发明涉及触控技术领域， 尤其涉及一种投影屏幕、 遥控终端 投影装置、 显示设备、 投影系统及投影系统的遥控方法。
随着遥控技术的快速发展， 遥控产品的应用范围越来越广。 投影系统作为一种被动显示系统，通过投影装置能够将显示设备 显示的图像， 投影到投影屏幕上迸行显示， 通过更改显示设备上显示 的显示内容进而实现投影屏幕上显示内容的更改。随着遥控技术的发 展， 在投影系统中不可避免的会应用远距离遥控技术。
在应 ffi具有远距离遥控技术的投影系统中，可以实现对投影装置 进行遥控操作， 也可以实现对显示设备进行遥控操作， 但是并不能实 现对投影屏幕进行遥控操作。
本发明的目的是提供一种投影屏幕、 遥控终端、 投影装置、 显示 设备、 投影系统及投影系统的遥控方法， 以解决现有投影系统中， 无 法实现对投影屏幕进行遥控操作的问题。
本发明的目的是通过以下技术方案实现的：
第一方面， 本发明提供一种投影屏幕， 该投影屏幕上设置有交叉 排布的信号线、与所述信号线电连接的光感传感器以及接收所述信号 线传输的感应信号的信号处理器；
所述光感传感器， ^于感知遥控终端投射的用于确定遥控区域的 光束； 所述信号线，用于将所述光感传感器感知到的光束照射后产生的 感应信号传输给所述信号处理器；
所述信号处理器，用于根据所述信号线传输的感应信号确定所述 光感传感器感知的光束照射位置的位置信息，并将所述位置信息向指 定设备发送。
本发明实施例中提供的投影屏幕上设置能够感知遥控终端和投 影装置发射的特定波长光束的光感传感器，并通过信号线将光感传感 器感知到光束照射后产生的感应信号传输给信号处理器，信号处理器 根据接收到的光感信号能够确定相应的位置信息并传输给相应的设 备，故通过本发明能够根据信号处理器确定的光感传感器感知的光束 照射的位置信息进行遥控区域的确定，进而能够根据遥控终端发射的 操作指令实现遥控操作， 最终实现对投影屏幕的遥控操作， 给用户带 来遥控和触控的感觉。
可选的， 所述指定设备包括： 显示设备和 /或投影装置； 所述信号处理器， 具体用于： 将所述位置信息向指定设备发送， 以使所述指定设备根据所述位置信息确定遥控区域。
可选的， 所述光感传感器还用于： 感知投影装置投射的 ffi于确定 显示区域的光束； 所述信号处理器还用于： 将确定的所述光感传感器 感知的投影装置投射的光束照射位置的位置信息向投影装置发送，以 使所述投影装置能够根据所述光感传感器感知的投影装置投射的光 束的位置信息确定显示区域， 实现投影屏幕上显示区域的灵活调整。
进一步的，所述信号线包括沿水平方向排布的信号线和沿竖直方 向排布的信号线， 以使位置信息的确定更为精确。
第二方面，本发明提供一种遥控终端，包括光束发射器和指令键， 其中：
所述光束发射器， 用于向投影屏幕投射设定波长的光束； 所述指令键， 用于向显示设备发送操作指令。
本发明上述提供的遥控终端，通过光束发射器向投影屏幕投射设 定波长的光束，进而可使得投影屏幕能够感知该设定波长的光東的照 射， 并确定照射的位置信息传输给显示设备， 使显示设备能够确定遥 控区域， 并通过指令键向显示设备发送操作指令， 进而能够使显示设 备进行相应的操作， 实现遥控操作。
进一步的， 该遥控终端还包括： 用于控制遥控终端是否向投影屏 幕投射光束的开关，通过该开关可以有效的控制遥控终端是否进行光 束的发射， 在不需要进行光束发射时， 关闭开关， 以节省电源。
可选的， 所述光束发射器， 具钵用于： 向投影屏幕发射可见光束 和 /或不可见光束。
可选的，所述遥控终端还包括用于控制遥控终端是否向投影屏幕 投射光束的开关。
本发明实施例中光束发射器向投影屏幕发射可见光束，能够使用 户根据该可见光束确定光束发射器发射光束所指方向，并通过向投影 屏幕发射不可见光束，该不可见光束可^于确定光束发射器发射的光 束的照射位置。
第三方面， 提供一种投影装置， 该投影装置包括：
光束发射器， 用于向投影屏幕发射设定波长的光束；
控制器， ^于根据投影屏幕发送的位置信息， 该位置信息是光感 传感器所感知的投影装置投射的光束的位置的位置信息，对所述光束 发射器发射的光束进行控制， 使投影屏幕上的显示区域为设定形状。
本发明实施例上述提供的投影装置，光束发射器向投影屏幕发射 设定波长的光束， 控制器根据投影屏幕反馈的光束照射位置信息， 对 光束发射器发射的光束进行控制，使投影屏幕上的显示区域为设定形 状， 使投影屏幕上的显示区域能够灵活调整。
所述光束发射器， 具体用于： 向投影屏幕投射能够被设置在投影 屏幕上的光感传感器感知的第一波长的光束， 用于显示相关显示内 容； 以及向投影屏幕投射用于确定显示区域的第二波长的光束， 所述 第二波长的光束为能够被设置在投影屏幕上的光感传感器感知的光 東，且所述第二波长的光束位于显示内容在投影屏幕上所呈现的显示 区域的边缘，所述第二波长的光束的位置顺序连线后组成的图形为设 定的图形。
可选的， 投影装置的四个角均至少设置一个光束发射器。
通过光束发射器发射不同波长的光束，以区分进行显示内容显示 的投影光束， 以及进行显示区域调整的调整光束。本发明实施例中第 一波长的光束为不能够被光感传感器感知的光束，故可用来进行投影 显示， 第二波长的光束能够被光感传感器感知， 并设置在显示区域的 边缘， 光束的位置顺序连线后组成的图形为设定的图形， 故可使投影 装置不仅可根据该第二波长的照射位置进行显示区域的灵活调整，并 且设置在显示区域边缘的光束的位置顺序连线后组成的图形为设定 的图形， 使得显示区域的调整更为筒单精确。
第四方面， 提供一种显示设备， 包括：
收发器，用于获取投影屏幕上光感传感器感知的遥控终端投射的 光束的位置信息， 并接收遥控终端的指令键发送的操作指令；
处理器，用于根据所述收发器接收到的所述位置信息确定遥控区 域， 并根据所述操作指令执行遥控操作。
本发明实施例提供的显示设备，收发器接收投影屏幕传输的光束 照射位置信息， 并接收遥控终端的指令键发送的操作指令， 处理器能 够根据接收到的位置信息进行遥控区域的确定，并根据遥控终端发射 的操作指令进行相应的操作， 最终实现对投影屏幕的遥控操作， 给用 户带来遥控和触控的感觉。
进一步的， 所述处理器， 具体用于：
根据投影装置投射到投影屏幕上的显示区域中包括的信号线的 条数以及显示设备的分辨率，确定显示内容在显示设备中进行显示与 在所述显示区域中进行显示的显示比例；
根据所述显示比例，确定所述显示内容在所述投影屏幕上的显示 位置与在所述显示设备上的显示位置的映射关系； 根据所述位置信息以及所述映射关系，确定所述光感传感器感知 的遥控终端投射的光束照射位置是否位于所述显示内容中显示图标 或控件的覆盖区域范围内；
若是， 则将该图标或控件确定为遥控区域；
若否，则在所述光感传感器感知的遥控终端投射的光束照射位置 的对应位置处显示光标， 并将所述光标覆盖的区域确定为遥控区域。
所述处理器， 还用于：
在投影屏幕感知到的遥控终端发射的光束照射位置处显示光斑， 以避免可见光束不能在投影屏幕上被识别时，使用户较容易的确定遥 控终端的光束所指向的位置。
第五方面， 提供一种投影系统， 包括投影装置、 投影屏幕、 遥控 终端和显示设备， 其中：
投影装置， 用于向投影屏幕发射设定波长的光束， 将显示设备上 显示的相关内容投影到投影屏幕上；
投影屏幕， 用于接收投影装置发射的光束， 以及遥控终端投射的 用于确定遥控区域的光束，将光束照射位置的位置信息向显示设备发 送；
遥控终端， 用于向投影屏幕投射设定波长的光束， 并向显示设备 发送操作指令；
显示设备，用于根据投影屏幕确定的遥控终端投射的光束照射的 位置信息确定遥控区域，并根据遥控终端发送的操作指令执行遥控操 作。
本发明实施例中投影系统，通过在投影屏幕接收遥控终端和投影 装置发射的特定波长光束的照射， 并确定相应的光束照射的位置信 息，使显示设备能够根据投影屏幕确定的遥控终端投射的光束照射的 位置信息进行遥控区域的确定，并根据遥控终端发射的操作指令实现 遥控操作， 最终实现对投影屏幕的遥控操作， 给用户带来遥控和触控 的感觉。
较佳的， 所述投影装置， 具体用于： 向投影屏幕投射用于显示相关显示内容的第一波长的光束，所述 第一波长的光束为不能够被设置在投影屏幕上的光感传感器感知的 光束； 以及
向投影屏幕投射用于确定显示区域的第二波长的光束，并根据投 影屏幕发送的第二波长的光束照射位置的位置信息，使投影屏幕上的 显示区域为设定形状；
所述投影屏幕， 具体用于：
接收所述第一波长的光束， 将显示设备显示的显示内容进行显 示， 并接收第二波长的光束， 将接收到的第二波长的光束照射位置的 位置信息向所述投影装置发送，以使所述投影装置能够根据所述第二 波长的光束照射位置的位置信息确定显示区域。
通过投影装置向投影屏幕投射不同波长的光束，不仅可实现对显 示设备上的显示内容的投射显示，还可对投影屏幕上显示区域的灵活 调整。
第六方面， 一种投影系统的遥控方法， 其中投影系统包括投影装 置、 投影屏幕、 遥控终端和显示设备， 所述遥控方法包括：
投影屏幕接收到投影装置投射的^于确定显示区域的光束时，将 接收到的光束照射位置的第一位置信息向投影装置传输；
投影装置根据第一位置信息，确定投影屏幕上显示相关显示内容 的显示区域；
显示设备根据确定的显示区域建立显示内容在投影屏幕上的显 示位置与在显示设备上的显示位置的映射关系；
投影屏幕接收到遥控终端发射的^于确定遥控区域的光束时，将 接收到的光束照射位置的第二位置信息向显示设备传输；
显示设备根据接收到的第二位置信息以及映射关系，确定遥控区 域； 以及
当显示设备接收到遥控终端发送的操作指令时，根据操作指令执 行遥控操作。 可选的， 所述第一位置信息为投影屏幕的光感传感器感知的、位 于显示内容所在区域的边缘位置处的光束照射位置。
可选的，投影装置根据位于显示内容所在区域的边缘位置处的光 束照射位置之间连线， 组成的设定图形所在区域， 作为显示区域。
可选的，显示设备确定显示内容在投影屏幕上的显示位置与在显 示设备上的显示位置的映射关系， 可采用如下方式：
获取显示区域中包括的沿水平方向排布的信号线的条数以及沿 竖直方向排布的信号线的条数；
根据获取的信号线的条数以及显示设备的分辨率，确定显示内容 在所述显示区域中进行完全显示的显示比例； 以及
根据确定的显示比例，确定显示内容在投影屏幕上的显示位置与 在显示设备上的显示位置的映射关系。
可选地， 显示设备根据接收到的第二位置信息以及映射关系， 确 定遥控区域， 具体可采用如下方式：
根据第二位置信息以及映射关系，确定第二位置在显示区域内所 处位置是否位于显示内容中任一显示图标或控件的覆盖范围内， 若 是， 则显示设备将该图标或控件确定为遥控区域； 若否， 则显示设备 使第二位置在显示区域的对应位置处显示光标，并将光标覆盖处确定 为遥控区域。
可选的， 投影屏幕还可将第二位置信息向投影装置传输， 由投影 装置确定遥控区域， 然后再传输给显示设备。
图 1为本发明实施例提供的投影系统构成示意图；
图 2A-图 2B为本发明实施例提供的遥控终端构成示意图； 图 3为本发明实施例提供的投影屏幕构成示意图；
图 4为本发明实施例提供的投影装置构成示意图；
图 5为本发明实施例提供的显示设备构成示意图；
图 6为本发明实施例提供的遥控方法操作流程图。 下面将结合本发明实施例中的階图，对本发明实施例中的技术方 案进行清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部 分实施例， 并不是全部的实施例。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。
本发明实施例应用于图 1所示的投影系统，该投影系统包括投影 屏幕 1、 投影装置 2、 遥控终端 3和显示设备 4。
具体的， 投影装置 2， 用于向投影屏幕 1发射设定波长的光束， 将显示设备 4上显示的相关内容投影到投影屏幕 1上。 投影屏幕 1 , 用于接收投影装置 2发射的光束，将显示设备上显示的相关内容进行 显示； 还用于接收遥控终端 3投射的用于确定遥控区域的光束， 确定 遥控终端投射的光束照射的位置的位置信息。 遥控终端 3， ^于向投 影屏幕 1投射设定波长的光束， 并向显示设备 4发送操作指令。显示 设备 4 , 用于根据投影屏幕 1确定的遥控终端 3投射的光束照射的位 置信息确定遥控区域，并根据遥控终端 3发送的操作指令执行遥控操 作。
进一步的， 本发明实施例中投影装置 2 , 具体 ffi于： 向投影屏幕 1投射^于显示相关显示内容的第一波长的光束， 该第一波长的光束 为不能够被设置在投影屏幕上的光感传感器感知的光束； 以及向投影 屏幕 1投射用于确定显示区域的第二波长的光束， 并根据投影装置 2 发送的第二波长的光束照射位置的位置信息，使投影屏幕 1上的显示 区域为设定形状。 投影屏幕 1， 具体用于： 接收第一波长的光束， 将 显示设备 4显示的显示内容进行显示，实现对显示设备上的显示内容 的投射显示， 并接收第二波长的光束， 将接收到的第二波长的光束照 射位置的位置信息向投影装置 2发送， 以使投影装置 2能够根据第二 波长的光束照射位置的位置信息确定显示区域，实现对投影屏幕上显 示区域的灵活调整。 具体的，本发明实施例中遥控终端 3能够向显示设备 4发送操作 指令， 并能向投影屏幕 1发射用于确定遥控区域的特定波长的光束。 故本发明实施例中遥控终端 3包括光束发射器 301和指令键 302， 如 图 2A所示。 光束发射器 301 , 用于向投影屏幕投射设定波长的光束; 指令键 302 , 用于向显示设备 4发送操作指令。
本发明实施例中遥控终端 3与普通遥控终端不同之处在于，本发 明实施例中遥控终端 3包括光束发射器 301 , 该光束发射器 301可设 置于遥控终端的顶端， 当然并不引以为限， 也可设置于遥控终端的其 它部位。 本发明实施例中遥控终端 3的光束发射器 301发射的光束， 能够被设置于投影屏幕上的光感传感器感知。
可选的，本发明实施例中遥控终端 3的光束发射器 301可发射可 见光束和 /或不可见光束两种， 可见光束能够被用户肉暖识别， 便于 用户确定光束所指的方向，但为了避免该可见光束对遥控终端发射的 用于确定遥控区域的光束照射位置的影响，该可见光束设定为不能被 投影屏幕上的光感传感器所感知。不可见光束能够被投影屏幕上的光 感传感器感知，在投影屏幕上能够对光束照射位置的位置信息进行确 定， 以便进行遥控区域的确定。
进一步的，本发明实施例中可在遥控终端 3上设置 ffi于控制是否 向投影屏幕发射用于确定遥控区域的光束的开关 303， 如图 2B所示。 在需要对投影屏幕上显示的内容进行遥控操作时， 打开开关 303， 在 不需要时可关闭开关 303， 以节省电源。
更进一步的， 本发明实施例中遥控终端 3还包括指令键 302 , 其 中， 在用户确定了遥控区域位置后， 通过操作该指令键 302向显示设 备发送操作指令。 本发明实施例中^户确定遥控区域， 可通过遥控终 端发射的可见光束在投影屏幕上的照射位置进行确定，也可通过显示 设备控制遥控终端的光束发射器 301发射的光束在投影屏幕上照射 位置处显示的光斑所处位置进行确定，当用户确定了可见光束照射的 位置为要进行遥控操作的遥控区域后，或者) ¾户确定了光斑所处位置 为要进行遥控操作的遥控区域后， 可直接对指令键 302进行按下操 作， 以使遥控终端发送遥控指令。
本发明实施例中提供的投影屏幕 1除了能够通过投影装置 2将显 示设备 4显示的显示内容进行显示外，还包括设置在投影屏幕上的若 千条信号线 101、 光感传感器 102和信号处理器 103， 如图 3所示。
具体的， 本发明实施例中信号线 101交叉排布， 并与光感传感器 102电连接。 本发明实施例中优选信号线 101呈网格形式排布， 光感 传感器 102设置于网格结点处， 并与信号线 101电连接， 以提高位置 信息确定的准确性。
进一步的， 本发明实施例中光感传感器 102可设置于投影屏幕 1 的表面， 能够感知设定波长的光束的照射， 该光束可以是遥控终端 3 投射的用于确定遥控区域的光束或投影装置 2投射的用于确定显示 区域的光束。光感传感器 102被设定波长的光束照射后， 其电气参数 (电容、 电阻、 电压等）发生变化， 这些变化会以感应信号的形式通 过信号线 101传输给信号处理器 103。
可选的，本发明实施例中信号线 101包括沿水平方向排布的信号 线 1011和沿竖直方向排布的信号线 1012， 并 ϋ沿水平方向排布的信 号线 1011和沿竖直方向排布的信号线 1012横纵交错，以网格形式排 布， 以使信号处理器 103能够更精确的确定光束照射的位置， 如图 3 本发明实施例中信号处理器 103， ^于接收信号线 101传输的感 应信号，并根据该感应信号确定光感传感器感知的光束照射位置的位 置信息， 并将确定的位置信息向指定设备发送。
具体的， 本发明实施例中信号处理器 103与横纵交错的信号线 101电连接， 接收其传输的光感传感器 102被光束照射后产生的感应 信号，本发明实施例中信号处理器 103根据该感应信号确定光感传感 器感知的光束照射位置的位置信息， 并将其发送给显示设备 4和 /或 投影装置 2。 本发明实施例中可在显示设备 4中设置能够根据信号处理器 103 传输的相关位置信息确定遥控区域的器件，以使显示设备 4能够根据 光感传感器感知的遥控终端投射的光束的位置信息来确定遥控区域。
本发明实施例中还可在投影装置 2中设置能够根据信号处理器 103传输的相关位置信息确定遥控区域的器件， 然后通过投影装置与 显示设备 4中的数据传输， 将该确定的遥控区域传输给显示设备， 进 行后续的遥控操作。
优选的，本发明实施例中光感传感器 102可以感知投影装置 2投 射的用于确定显示区域的光束， 信号处理器 103， 接收到信号线 101 传输的光感传感器 102感知的投影装置 2投射的光束的照射产生的感 应信号，根据该感应信号可确定光感传感器感知的光束照射位置的位 置信息， 并将确定的该位置信息向投影装置 2传输， 以使投影装置 2 能够根据光感传感器 102感知的投影装置 2投射的光束的位置信息确 定显示区域。
本发明实施例中信号处理器 103向显示设备 4和 /或投影装置 2 发送位置信息时， 可通过无线传输方式或有线传输方式发送。
本发明实施例中投影装置 2包括光束发射器 201和控制器 202 , 如图 4所示。
具体的，本发明实施例中光束发射器 201用于向投影屏幕发射设 定波长的光束。控制器 202 ^于根据投影屏幕 1的信号处理器 103发 送的光感传感器 102感知的投影装置 2投射的光束的位置信息，对光 束发射器 201发射的光束进行控制，使投影屏幕 1上的显示区域为设 定形状。
优选的， 投影装置 2的四个角均至少设置一个光束发射器 201， 即四个角中的每一个角都设置至少一个光束发射器， 以增强投影效 果。
优选的，本发明实施例中投影装置 2的光束发射器 201发送的光 東可以是向投影屏幕 1投射的用于显示相关显示内容的第一波长的 光束； 以及向投影屏幕 1投射用于确定显示区域的第二波长的光束。 具体的，本发明实施例中上述第一波长的光束为不能够被设置在 投影屏幕 1上的光感传感器 102感知的光束，该第一波长的光束用于 将显示设备 4上的相关显示内容显示在投影屏幕 1上。本发明实施例 中上述第二波长的光束为能够被设置在投影屏幕 1上的光感传感器 102感知的光束， 该第二波长的光束位于显示区域的边缘， 该显示区 域显示在投影屏幕 1上所呈现的显示内容，并 ii该第二波长的光束的 位置顺序连线后所组成的图形为设定的图形。
具体的， 本发明实施例中上述第二波长的光束能够被投影屏幕 1 上的光感传感器 02感知并产生感应信号， 该感应信号通过信号线 101传输给信号处理器 103， 信号处理器根据接收到的感应信号， 能 够确定相应的位置信息并向投影装置 2的控制器 202发送该位置信 息， 控制器 202接收到该位置信息后， 能够根据该位置信息对光束发 射器 201发射的光束进行控制，使投影屏幕 1上的显示区域为设定形 状。
优选的， 本发明实施例中上述涉及的设定形状， 可以是矩形， ffi 可以是其它形状， 本发明实施例不做限定。 本发明实施例优选该设定 的图形为矩形， 以使投影屏幕 1上的显示区域为矩形， 该矩形为能够 较容易的调整为与显示设备 4上显示的显示内容成设定比例的图形， 以能够更好的确定显示内容在投影屏幕 1上的显示位置与在显示设 备上 4的显示位置之间的比例映射关系， 以更精确的确定遥控区域。
通过本发明实施例中的位于显示区域边缘的能够被设置在投影 屏幕上的光感传感器感知的第二波长的光束，可进行投影屏幕上的显 示区域的灵活调整。
本发明实施例中的显示设备 4包括收发器 401和处理器 402， 如 图 5所示。
具体的， 本发明实施例中收发器 401， ^于接收投影屏幕 1的信 号处理器 103传输的、光感传感器 102感知的遥控终端 3投射的光束 的位置信息； 还用于接收遥控终端 3的指令键 302发送的操作指令。 处理器 402 , 用于根据收发器 401接收到的位置信息确定遥控区域， 并根据接收到的操作指令执行遥控操作。
具体的，本发明实施例中处理器 402可根据投影装置投射到投影 屏幕 1上的显示区域，建立相关显示内容在投影屏幕 1上的显示位置 与在显示设备 4上的显示位置的映射关系。
具体的， 本发明实施例处理器 402建立上述映射关系时， 可通过 如下方式：
A: 获取投影屏幕 1上的显示区域中包括的沿水平方向排布的信 号线 101 1的条数以及沿竖直方向排布的信号线 1 012的条数。
B:根据获取的沿水平方向排布的信号线 1011的条数以及沿竖直 方向排布的信号线 1012的条数以及显示设备的分辨率， 确定显示内 容在投影屏幕 1上的显示区域中进行完全显示的显示比例。
C: 根据上述确定的显示比例， 确定显示内容在投影屏幕 1上的 显示位置与在显示设备 4上的显示位置的映射关系。
更进一步的，本发明实施例中处理器 402根据收发器 401接收到 的位置信息确定遥控区域， 可采用如下优选方式：
根据接收到的位置信息以及确定的映射关系， 确定光感传感器 102感知的遥控终端 3投射的光束照射位置是否位于显示内容中任一 显示图标或控件的覆盖的区域范围内；
若是， 则将该图标或控件确定为遥控区域；
若否，则在光感传感器 102感知的遥控终端 3投射的光束照射位 置的对应位置处显示光标， 并将该光标覆盖的区域确定为遥控区域。
优选的，本发明实施例中为使用户能更好的明确遥控终端 3投射 的用于确定遥控区域的光束所照射的位置是否为所需的位置，处理器 402， 还用于： 在投影屏幕 1感知到的遥控终端 3发射的光束照射位 置处显示光斑。通过在投影屏幕上显示光斑， 可以避免 ffi于确定相应 投射位置的可见光束的颜色可能和投影屏幕 1上显示的显示内容的 颜色相近， 不容易被区分所带来的困扰。 本发明实施例提供的上述投影系统，通过在投影屏幕上设置能够 感知遥控终端和投影装置发射的特定波长光束的光感传感器，并通过 信号线将光感传感器感知到光束照射后产生的感应信号传输给信号 处理器，信号处理器根据接收到的光感信号能够确定相应的位置信息 并传输给显示设备和投影装置，使显示设备能够根据接收到的位置信 息进行遥控区域的确定，并根据遥控终端发射的操作指令实现遥控操 作，最终实现对投影屏幕的遥控操作，给用户带来遥控和触控的感觉。
基于上述提供的投影系统， 本发明实施例中实现遥控方法的过 程， 如图 6所示， 该实现遥控的过程包括：
S101 :投影屏幕接收到投影装置投射的用于确定显示区域的光束 时， 将接收到的光束照射位置的第一位置信息向投影装置传输。
可选的，本发明实施例第一位置信息为投影屏幕的光感传感器感 知的、 位于显示内容所在区域的边缘位置处的光束照射位置。
5102： 投影装置根据第一位置信息， 确定投影屏幕上显示相关显 示内容的显示区域。
可选的，本发明实施例中第一位置信息为投影屏幕的光感传感器 感知的、位于显示内容所在区域的边缘位置处的光束照射位置， 投影 装置根据位于显示内容所在区域的边缘位置处的光束照射位置之间 连线， 组成的设定图形所在区域， 作为显示区域。
5103： 显示设备根据 S102中确定的显示区域建立显示内容在投 影屏幕上的显示位置与在显示设备上的显示位置的映射关系。
具体的，本发明实施例中显示设备确定显示内容在投影屏幕上的 显示位置与在显示设备上的显示位置的映射关系， 可采用如下方式： A: 获取显示区域中包括的沿水平方向排布的信号线的条数以及 沿竖直方向排布的信号线的条数。
B: 根据获取的信号线的条数以及显示设备的分辨率， 确定显示 内容在所述显示区域中进行完全显示的显示比例。
根据确定的显示比例， 确定显示内容在投影屏幕上的显示位 置与在显示设备上的显示位置的映射关系。 SI 04：投影屏幕接收到遥控终端发射的用于确定遥控区域的光束 时， 将接收到的光束照射位置的第二位置信息向显示设备传输。
S105. 显示设备根据接收到的第二位置信息以及映射关系， 确定 遥控区域。
可选的，本发明实施例中显示设备根据接收到的第二位置信息以 及映射关系， 确定遥控区域， 具侔可采用如下方式：
根据第二位置信息以及映射关系，确定第二位置在显示区域内所 处位置是否位于显示内容中任一显示图标或控件的覆盖范围内。
若是， 则显示设备将该图标或控件确定为遥控区域。
若否， 则显示设备使第二位置在显示区域的对应位置处显示光 标， 并将光标覆盖处确定为遥控区域。
当然， 本发明实施例中， 投影屏幕还可将第二位置信息向投影装 置传输， 由投影装置确定遥控区域， 然后再传输给显示设备。
5106： 当显示设备接收到遥控终端发送的操作指令时， 根据操作 指令执行遥控操作。
本发明实施例中操作指令， 通过操作遥控终端的指令键实现。该 操作指令包括类似于在触摸屏终端上可以发出的任何操作指令， 比 如： 单击、 双击、 长按、 以及以一起始位置向各个方向滑动的滑动操 作等， 单击指令则可通过按动一次指令键实现， 双击指令可通过按动 两次指令键实现， 滑动操作则可通过按住指令键不放， 而进行滑动实 现。 显示设备根据上述操作指令执行对应的操作， 比如： 双击图标则 打开相应的应用、从右向左滑动则翻页、丛下到上滑动则放大被滑动 覆盖的区域等。
进一步的， 本发明实施例中显示设备确定了遥控区域后， 可以突 出显示该遥控区域， 例如可以将该遥控区域显示为较明显的颜色、 阴 影或与该遥控区域原有内容颜色区别较大的颜色， 以对用户进行提 示， 方便 ffi户确定该遥控区域是否为所需的遥控区域。
本发明以下将结合实际应用对上述涉及的投影系统实现遥控操 作的过程进一歩进行详细说明。 本发明实施例中以安装有智能操作系统的显示器为显示设备，投 影装置为投影仪， 遥控终端为遥控器， 投影屏幕为具有上述功能的投 影屏幕为例进行说明。本发明实施例中显示器能连接网络， 投影屏幕 和遥控器之间通过无线技术实现连接。
第一步， 启动显示器以及投影仪， 投影屏幕显示出显示器上显示 的各种图形选择界面， 比如有 "电视节目"、 "音乐"、 "图片 "等 第二步， ίΤ开遥控器的开关， 设置在遥控器上的光束发射器， 发 出可见光束和 /或不可见光束， 并照射在投影屏幕上， 本发明实施例 中以不可见光束为设定的能够被投影屏幕上的光感传感器感应到的 特定波长的光束。
第三步，投影屏幕上被不可见光束照射到的光感传感器感知到光 束的照射， 其电气参数（电容、 电阻、 电压等）发生变化， 发生变化 的位置即光束照射位置的位置信息通过呈阵列排布的信号线传递给 安装有智能操作系统的显示器。
本发明实施例中光感传感器感知到光束照射后，信号线通过感知 其变化， 获取呈阵列排布的信号线上光感传感器发生变化的位置（信 号线横纵交错， 横向即为水平坐标系中 X轴方向， 纵向即为水平坐标 系中 Υ轴方向） ， 能够确定被照射的位置， 通过该位置确定被照射的 位置的坐标信息，通过该坐标信息能够确定该坐标对应的显示图标或 第四步， 安装有智能操作系统的显示器根据接收到的位置信息， 确定遥控区域。
本发明实施例中安装有智能操作系统的显示器根据投影屏幕传 送的位置信息，将位置信息对应坐标上的显示图标或控件进行画面显 示的显示区域作为确定的遥控区域。
进一步的，本发明实施例中安装有智能操作系统的显示器可以在 确定的遥控区域所在的位置处显示出光斑（或阴影） ， 让用户知道遥 控器指向投影屏幕上的位置。 第五步，当安装有智能操作系统的显示器接收到遥控器发送的操 作指令时， 根据该操作指令执行遥控操作。
比如， 不可见光束照射到 "音乐"的图标上， "音乐"图标所在 位置信息传递给安装有智能操作系统的显示器上，安装有智能操作系 统的显示器认为 "音乐"图标对应的显示区域为遥控区域， 此时如果 用户点击遥控器的指令键 302， 相当于对 "音乐" 图标进行了点击操 作， 此时则抉行相应的点击操作。 假设用户点击 "音乐"， 进入音乐 库， 此时会显示有很多歌曲图标， 分很多版面显示（丛左到右， 1版、 2版、 3〜. .每次只显示一版） ， 当用户按住操作指令键不放， 让遥 控器发出的不可见光束在投影屏幕上丛右到左滑过时，当前投影屏幕 显示的版面（假设为 1版）上的图像丛右向左移动并消失， 屏幕显示 2版， 其过程与用手滑动智能手机相似。
此时， 如果并未点击指令键， 而移动遥控器， 并将不可见光束照 射在 "图片" 图标上， 点击操作指令键， 相当于对 "图片"图标进行 了点击操作。
本发明实施例中提供的投影屏幕、投影装置、投影系统及遥控方 法，通过在投影屏幕上设置能够感知遥控终端和投影装置发射的特定 波长光束的光感传感器，并通过信号线将光感传感器感知到光束照射 后产生的感应信号传输给信号处理器，信号处理器根据接收到的光感 信号能够确定相应的位置信息并传输给显示设备和投影装置，使显示 设备能够根据接收到的位置信息进行遥控区域的确定，并根据遥控终 端发射的操作指令实现遥控操作， 最终实现对投影屏幕的遥控操作， 给用户带来遥控和触控的感觉。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不 脱离本发明的精神和范園。这样， 倘若本发明的这些修改和变型属于 本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些 改动和变型在内。

Claims

一种投影屏幕， 该投影屏幕上设置有交叉排布的信号线、 与所述信号 线电连接的光感传感器以及接收所述信号线传输的感应信号的信号处理器， 其中，
所述光感传感器， 用于感知遥控终端投射的 ffi于确定遥控区域的光束； 所述信号线， 用于将所述光感传感器感知到的光束照射后产生的感应信 号传输给所述信号处理器；
所述信号处理器， 用于根据所述信号线传输的感应信号确定所述光感传 感器感知的光束照射位置的位置信息， 并将所述位置信息向指定设备发送。
2、 如权利要求 1所述的投影屏幕， 其中， 所述指定设备包括： 显示设备 和 /或投影装置；
所述信号处理器， 具体用于： 将所述位置信息向指定设备发送， 以使所 述指定设备根据所述位置信息确定遥控区域。
3、 如权利要求 1所述的投影屏幕， 其中， 所述光感传感器还) ¾于： 感知 投影装置投射的 于确定显示区域的光束；
所述信号处理器还用于； 将确定的所述光感传感器感知的投影装置投射 的光束照射位置的位置信息向投影装置发送， 以使所述投影装置能够根据所 述光感传感器感知的投影装置投射的光束的位置信息确定显示区域。
4、 一种遥控终端， 包括光東发射器和指令键， 其中：
所述光束发射器， 用于向投影屏幕投射设定波长的光束；
所述指令键， 用于向显示设备发送操作指令。
5、 如权利要求 4所述的遥控终端， 其中， 所述光束发射器， 具体用于： 向投影屏幕发射可见光東和 /或不可见光束。
6、 根据权利要求 4或 5所述的遥控终端， 还包括用于控制遥控终端是 否向投影屏幕投射光束的开关。
7、 一种投影装置， 包括：
光束发射器， 用于向投影屏幕发射设定波长的光束； 控制器， 用于根据投影屏幕发送的位置信息， 该位置信息是光感传感器 所感知的投影装置投射的光束的位置的位置信息， 对所述光束发射器发射的 光束进行控制， 使投影屏幕上的显示区域为设定形状。
8、 如权利要求 7所述的投影装置， 其中， 所述光束发射器， 具体用于: 向投影屏幕投射能够被设置在投影屏幕上的光感传感器感知的第一波长 的光束； 以及
向投影屏幕投射 ffi于确定显示区域的第二波长的光束， 所述第二波长的 光束为能够被设置在投影屏幕上的光感传感器感知的光束， 且所述第二波长 的光束位于显示内容在投影屏幕上所呈现的显示区域的边缘， 所述第二波长 的光束的位置顺序连线后组成的图形为设定的图形。
9、 根据权利要求 7或 8所述的投影装置， 其中， 投影装置的四个角均 至少设置一个光束发射器。
10、 一种显示设备， 包括：
收发器， 用于获取投影屏幕上光感传感器感知的遥控终端投射的光束的 位置信息， 并接收遥控终端发送的操作指令；
处理器， 用于根据所述收发器接收到的所述位置信息确定遥控区域， 并 根据所述操作指令执行遥控操作。
1 如权利要求 10所述的显示设备， 其中， 所述处理器， 具体用于： 根据投影装置投射到投影屏幕上的显示区域中包括的信号线的条数以及 显示设备的分辨率， 确定显示内容在显示设备中进行显示与在所述显示区域 中进行显示的显示比例；
根据所述显示比例， 确定所述显示内容在所述投影屏幕上的显示位置与 在所述显示设备上的显示位置的映射关系；
根据所述位置信息以及所述映射关系， 确定所述光感传感器感知的遥控 终端投射的光束照射位置是否位于所述显示内容中显示图标或控件的覆盖区 域范围内；
若是， 则将该图标或控件确定为遥控区域；
若否， 则在所述光感传感器感知的遥控终端投射的光束照射位置的对应 位置处显示光标， 并将所述光标覆盖的区域确定为遥控区域。 12、 一种投影系统， 包括投影装置、 投影屏幕、 遥控终端和显示设备， 其中：
投影装置， ^于向投影屏幕发射设定波长的光束， 将显示设备上显示的 相关内容投影到投影屏幕上；
投影屏幕， ^于接收投影装置发射的光束， 以及遥控终端投射的 ffi于确 定遥控区域的光束， 并确定遥控终端投射的光束照射的位置的位置信息； 遥控终端， ^于向投影屏幕投射设定波长的光束， 并向显示设备发送操 作指令；
显示设备， ^于根据投影屏幕确定的遥控终端投射的光束照射的位置信 息确定遥控区域， 并根据遥控终端发送的操作指令执行遥控操作。
13、 如权利要求 12所述的投影系统， 所述投影装置， 具体用于： 向投影屏幕投射^于显示相关显示内容的第一波长的光束， 所述第一波 长的光東为不能够被设置在投影屏幕上的光感传感器感知的光束； 以及
向投影屏幕投射) ¾于确定显示区域的第二波长的光束， 并根据投影屏幕 发送的第二波长的光束照射位置的位置信息， 使投影屏幕上的显示区域为设 定形状。
14、 如权利要求 12或 13所述的投影系统， 所述投影屏幕， 具体 于： 接收所述第一波长的光東， 将显示设备显示的显示内容进行显示， 并接 收第二波长的光束， 将接收到的第二波长的光束照射位置的位置信息向所述 投影屏幕发送， 以使所述投影装置能够根据所述第二波长的光束照射位置的 位置信息确定显示区域。
15、 一种投影系统的遥控方法，其中投影系统包括投影装置、投影屏幕、 遥控终端和显示设备， 所述遥控方法包括：
投影屏幕接收到投影装置投射的) ¾于确定显示区域的光東时， 将接收到 的光束照射位置的第一位置信息向投影装置传输；
投影装置根据第一位置信息， 确定投影屏幕上显示相关显示内容的显示 区域；
显示设备根据确定的显示区域建立显示内容在投影屏幕上的显示位置与 在显示设备上的显示位置的映射关系； 投影屏幕接收到遥控终端发射的 ffi于确定遥控区域的光束时， 将接收到 的光束照射位置的第二位置信息向显示设备传输；
显示设备根据接收到的第二位置信息以及映射关系， 确定遥控区域； 以 及
当显示设备接收到遥控终端发送的操作指令时， 根据操作指令执行遥控 操作。
16. 根据权利要求 15所述的遥控方法， 其中所述第一位置信息为投影 屏幕的光感传感器感知的、 位于显示内容所在区域的边缘位置处的光束照射 位置
17. 根据权利要求 16所述的遥控方法， 投影装置根据位于显示内容所 在区域的边缘位置处的光束照射位置之间连线， 组成的设定图形所在区域， 作为显示区域。
18. 根据权利要求 15 17中任一项所述的遥控方法， 其中， 显示设备确 定显示内容在投影屏幕上的显示位置与在显示设备上的显示位置的映射关 系， 可采用如下方式：
获取显示区域中包括的沿水平方向排布的信号线的条数以及沿竖直方向 排布的信号线的条数；
根据获取的信号线的条数以及显示设备的分辨率， 确定显示内容在所述 显示区域中进行完全显示的显示比例； 以及
根据确定的显示比例， 确定显示内容在投影屏幕上的显示位置与在显示 设备上的显示位置的映射关系。
19. 根据权利要求 15 18中任一项所述的遥控方法， 其中， 显示设备根 据接收到的第二位置信息以及映射关系， 确定遥控区域， 具体可采用如下方 式：
根据第二位置信息以及映射关系， 确定第二位置在显示区域内所处位置 是否位于显示内容中任一显示图标或控件的覆盖范围内， 若是， 则显示设备 将该图标或控件确定为遥控区域； 若否， 则显示设备使第二位置在显示区域 的对应位置处显示光标， 并将光标覆盖处确定为遥控区域。
20. 根据权利要求 15- -19中任一项所述的遥控方法， 其中， 投影屏幕还 可将第二位置信息向投影装置传输， 由投影装置确定遥控区域， 然后再传输 给显示设备。
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