CN108271010B - Projection method and terminal equipment - Google Patents
Projection method and terminal equipment Download PDFInfo
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- CN108271010B CN108271010B CN201810082644.8A CN201810082644A CN108271010B CN 108271010 B CN108271010 B CN 108271010B CN 201810082644 A CN201810082644 A CN 201810082644A CN 108271010 B CN108271010 B CN 108271010B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3173—Constructional details thereof wherein the projection device is specially adapted for enhanced portability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0272—Details of the structure or mounting of specific components for a projector or beamer module assembly
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
- H04M1/72439—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for image or video messaging
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/54—Details of telephonic subscriber devices including functional features of a projector or beamer module assembly
Abstract
The invention provides a projection method and terminal equipment, wherein the projection method comprises the following steps: determining an included angle between a display screen of the terminal device and a projection screen of the projector, judging whether the included angle is smaller than a preset angle, and when the included angle is smaller than the preset angle, utilizing the projector to perform projection. According to the scheme provided by the invention, the projector can be used for projection on the premise of good projection effect of the projector, calibration by artificial judgment and manual adjustment of the placement angle of the terminal equipment is avoided, the operation is simplified, and the projection effect is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a projection method and a terminal device.
Background
Currently, with the rapid development of vehicles, face-to-face communication has become an indispensable communication mode. People often use projectors to share technologies when communicating face to face, and the corresponding projection mode is to project contents to be communicated through projection equipment (projectors) by using a computer. Since the computer for projection needs to be carried separately to be used in cooperation with the projector, it is very inconvenient.
In order to reduce the inconvenience of carrying a computer alone during projection, the existing terminal equipment such as a mobile phone can be provided with the function of a projector, and the corresponding projection process can be realized by means of the cooperation of the terminal equipment and the projector therein, so that the projection is very convenient. However, when using a mobile phone for projection, the following problems are often encountered: in order to ensure the effect of the projected image, the calibration is usually carried out by manually judging and manually adjusting the placement angle of the mobile phone, which is very tedious.
Disclosure of Invention
The embodiment of the invention provides a projection method and terminal equipment, and aims to solve the problem that the existing terminal equipment with a projector is very complicated because the calibration is usually carried out by manually judging and manually adjusting the placement angle of the terminal equipment in order to ensure the effect of a projected image when the terminal equipment is used for projection.
In a first aspect, an embodiment of the present invention provides a projection method, applied to a terminal device including a projector, including:
determining an included angle between a display screen of the terminal device and a projection screen of the projector;
judging whether the included angle is smaller than a preset angle or not;
and if the included angle is smaller than the preset angle, projecting by using the projector.
In a second aspect, an embodiment of the present invention further provides a terminal device with a projector, including:
the determining module is used for determining an included angle between a display screen of the terminal equipment and a projection screen of the projector;
the judging module is used for judging whether the included angle is smaller than a preset angle or not;
and the projection module is used for utilizing the projector to perform projection when the included angle is smaller than the preset angle.
In a third aspect, an embodiment of the present invention further provides a terminal device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the projection method.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the projection method described above.
According to the projection method provided by the embodiment of the invention, whether the included angle is smaller than the preset angle is judged by determining the included angle between the display screen of the terminal equipment and the projection screen of the projector, and when the included angle is smaller than the preset angle, the projector is used for projection, because the projection direction of the projector is generally vertical to the display screen of the terminal equipment, and the projection direction of the projector is vertical to the projection screen of the projector, namely when the included angle between the display screen of the terminal equipment and the projection screen of the projector is 0, the effect of a projected image is optimal, the projection can be performed by using the projector on the premise that the projection effect of the projector is good by means of comparison with the preset angle, calibration by manual judgment and manual adjustment of the placement angle of the terminal equipment is avoided, the operation is simplified, and the projection effect is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a flow chart of a projection method according to an embodiment of the invention;
fig. 2A and 2B are schematic diagrams of the arrangement of the projector in the folding mobile phone according to the embodiment of the present invention;
FIGS. 3A and 3B are schematic views of trapezoidal projected images of an embodiment of the present invention;
fig. 4A and 4B are front and side projection diagrams of a projector;
fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 6 is a second schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 7 is a third schematic structural diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Referring to fig. 1, an embodiment of the present invention provides a projection method applied to a terminal device including a projector, where the method includes the following steps:
step 101: and determining an included angle between a display screen of the terminal equipment and a projection screen of the projector.
Note that the terminal device is, for example, a mobile phone, an iPad, or the like. Specifically, the terminal device may be a folding mobile phone, and the projection function is realized by a rear projector in the folding mobile phone. Further, as shown in fig. 2A and 2B, a projector may be disposed at the center or at one side of the folding cellular phone, wherein 21 is the projector, 22 is a projection screen of the projector 21, the corresponding projection image is ABCD, 23 is a main screen of the folding cellular phone for displaying the display content "the people's republic" of the folding cellular phone, and 24 is a sub-screen of the folding cellular phone for displaying the projection image ABCD.
In a specific implementation, the projection screen of the projector may be a projection screen or a wall surface.
In the embodiment of the invention, when the included angle between the display screen and the projection screen is determined, because the projection screen of the projector is generally positioned in the vertical direction, the included angle between the display screen and the projection screen can be determined through the inclination angle of the terminal equipment relative to the vertical direction, which is detected by the gravity sensor in the terminal equipment. Specifically, step 101 may include: and determining an included angle between a display screen of the terminal equipment and a projection screen of the projector through an inclination angle of the terminal equipment relative to the vertical direction, which is detected by a gravity sensor in the terminal equipment.
Step 102: and judging whether the included angle is smaller than a preset angle or not.
In the embodiment of the invention, for the terminal device comprising the projector, the projection direction of the projector is generally perpendicular to the display screen of the terminal device, and when the projection direction of the projector is perpendicular to the projection screen of the projector, namely the included angle between the display screen of the terminal device and the projection screen of the projector is 0, the effect of the projected image of the projector is optimal. The preset angle is preset in the terminal equipment, and the corresponding preset conditions are as follows: when the included angle between the display screen and the projection screen is smaller than the preset angle, the projection effect of the projector is good, and the possible trapezoidal projection images can be calibrated through automatic calibration of the projector; and when the contained angle of display screen and projection screen is greater than or equal to and predetermines the angle, the projection effect of projecting apparatus is relatively poor, even through the automatic calibration of projecting apparatus also can not calibrate well. Therefore, whether the projection effect of the projector is good or not can be determined by judging whether the included angle between the display screen and the projection screen is smaller than the preset angle or not.
Step 103: and if the included angle is smaller than the preset angle, projecting by using a projector.
When the included angle between the display screen and the projection screen is smaller than a preset angle, it can be determined that the placement angle of the current terminal device can enable the projection effect of the projector to be good, and the projector can be used for projection, for example, the existing Liquid Crystal On Silicon (LCOS) technology or Digital Light Processing (DLP) technology is used for projection. When using a projector for projection, the projector may automatically calibrate the trapezoidal projected image that may appear. For example, referring to fig. 3A and 3B, when the vertical wall surface is a projection screen by default, if the display screen of the terminal device is tilted backward with respect to the vertical wall surface, a trapezoidal projection image as shown in fig. 3A may appear, and if the display screen of the terminal device is tilted forward with respect to the vertical wall surface, a trapezoidal projection image as shown in fig. 3B may appear.
Further, after step 102, if the included angle is greater than or equal to the preset angle, an adjustment angle may be displayed on a display screen of the terminal device to prompt a user of the terminal device to adjust the included angle according to the adjustment angle, so that the adjusted included angle is smaller than the preset angle.
As for the specific display form of the adjustment angle, for example, the adjustment angle may be displayed by displaying the size and the adjustment direction of the adjustment angle, which is not limited in the embodiment of the present invention. Therefore, the better projection effect can be ensured by prompting the terminal equipment user to properly adjust the placement angle of the terminal equipment.
According to the projection method provided by the embodiment of the invention, whether the included angle is smaller than the preset angle is judged by determining the included angle between the display screen of the terminal equipment and the projection screen of the projector, and when the included angle is smaller than the preset angle, the projector is used for projection, because the projection direction of the projector is generally vertical to the display screen of the terminal equipment, and the projection direction of the projector is vertical to the projection screen of the projector, namely when the included angle between the display screen of the terminal equipment and the projection screen of the projector is 0, the effect of a projected image is optimal, the projection can be performed by using the projector on the premise that the projection effect of the projector is good by means of comparison with the preset angle, calibration by manual judgment and manual adjustment of the placement angle of the terminal equipment is avoided, the operation is simplified, and the projection effect is improved.
In the embodiment of the present invention, in order to avoid that the projection function of the terminal device affects the normal display function of the terminal device and simultaneously displays the display content of the terminal device and the projection image of the projector, when the projector is used for projection, the display screen of the terminal device may be split, so that a part of the screen displays the display content of the terminal device and another part of the screen displays the projection image of the projector, as shown in fig. 2A and 2B. After step 103, the projection method may further include:
dividing the display screen to obtain a main screen and an auxiliary screen;
and controlling the main screen to display the display content of the terminal equipment, and controlling the auxiliary screen to display the projection image of the projector.
The display content of the terminal device is, for example, icons of various applications, user privacy information, and the like. The projection image displayed on the sub-screen coincides with the projection image displayed on the projection screen.
Therefore, through the split screen operation, the projection function of the terminal equipment can be prevented from influencing the normal display function of the terminal equipment, the display content of the terminal equipment and the projection image of the projector are displayed simultaneously, and the confidentiality content which a terminal equipment user does not want to share can be protected in real time.
In the embodiment of the present invention, in order to ensure the projection effect of the projector, the preset angle is related to the projection angle of the projector, and the following conditions need to be satisfied:
cos(α+β)/cos(α-β)＜1/2
wherein α is the projection angle of the projector, and the value range is [ -45 degrees ], under the condition that the projector is determined, α is a fixed value, β is the preset angle, and the preset angle is determined according to the value of α.
Next, the reason why the preset angle satisfies the above condition is explained with reference to fig. 4A and 4B.
Referring to fig. 4A, fig. 4A is a schematic front projection diagram of a projector in a terminal device, in fig. 4A, the terminal device is a folding mobile phone L in a triangular folded state, an angle between a current oblique side of the mobile phone and a vertical plane detected by a gravity sensor is β, a projection screen is a vertical wall surface, a distance between the mobile phone and the vertical wall surface is d (thickness and folding offset of the mobile phone itself can be ignored), a projection point of the projector is o, a projection angle is α (in a case of determination by the projector, the projection angle α is a fixed value), and an effective resolution is X × y, as can be seen from fig. 4A:
(1)∠OKI＝90°+β；∠GIK＝90°-β；
(2)∠GIH＝β；∠ODF＝90°-β；
(3)∠COE＝β；
therefore, in the right triangle HOF, ∠ HOF is a- β, and the short side d2 of the projected image is equal to d2 OH d/cos (a- β), in the right triangle AOF, ∠ AOF is a + β, and the long side d3 of the projected image is equal to d3 OA d/cos (a + β).
Referring to fig. 4B, fig. 4B is a schematic side projection diagram of a projector in the terminal device. In fig. 4B, it is assumed that the projection angle in the horizontal direction and the projection angle in the vertical direction coincide and are γ, the short side distance of the projected image corresponds to the short side d2 in fig. 4A, and the short side distance of the projected image corresponds to the long side d3 in fig. 4A. Therefore, the long side of the projection image displayed on the projection screen is equal to 2 × d3 × tan γ, and the short side of the projection image is equal to 2 × d3 × tan γ.
In order to display a rectangular projection image on the projection screen, the long side of the projection image needs to be compressed as long as the short side of the projection image by an amount equal to 2 × (d3-d2) × tan γ.
If the number of projection points on the long side of the projection image is Y and the number of projection points on the short side of the projection image is X, the number Z of projection points actually required on the long side of the projection image is:
Z＝Y-Y×[(d3-d2)tanγ/d3tanγ]＝Y-Y×[1-cos(a+β)/cos(a-β)]
in order to ensure the projection effect, Z is ensured to be more than 0.5Y, namely Y-Yx [1-cos (a + β)/cos (a- β) ] > 0.5Y, namely cos (α + β)/cos (α - β) < 1/2.
Therefore, the preset angle in the embodiment of the present invention needs to satisfy the following conditions:
cos(α+β)/cos(α-β)＜1/2
wherein α is the projection angle of the projector, and β is the preset angle.
The projection method of the present invention is explained in the above embodiments, and a terminal device corresponding to the projection method of the present invention will be explained with reference to the embodiments and the drawings.
Referring to fig. 5, an embodiment of the present invention further provides a terminal device, where the terminal device includes a determining module 51, a determining module 52, and a projecting module 53, which are described in detail below.
The determining module 51 is configured to determine an included angle between a display screen of the terminal device and a projection screen of the projector.
The judging module 52 is configured to judge whether the included angle is smaller than a preset angle.
And the projection module 53 is configured to perform projection by using the projector when the included angle is smaller than the preset angle.
According to the terminal device provided by the embodiment of the invention, whether the included angle is smaller than the preset angle is judged by determining the included angle between the display screen of the terminal device and the projection screen of the projector, and when the included angle is smaller than the preset angle, the projector is used for projection, because the projection direction of the projector is generally vertical to the display screen of the terminal device, and the projection direction of the projector is vertical to the projection screen of the projector, namely when the included angle between the display screen of the terminal device and the projection screen of the projector is 0, the effect of a projected image is optimal, the projection can be performed by using the projector on the premise that the projection effect of the projector is good by means of comparison with the preset angle, calibration by manual judgment and manual adjustment of the placement angle of the terminal device is avoided, the operation is simplified, and the projection effect is improved.
Optionally, the determining module 51 is provided for:
and determining the included angle through the inclination angle of the terminal equipment relative to the vertical direction, which is detected by a gravity sensor in the terminal equipment, wherein the projection screen is positioned in the vertical direction.
In the embodiment of the present invention, referring to fig. 6, the terminal device further includes a display module 54.
And the display module 54 is configured to display an adjustment angle on a display screen of the terminal device when the included angle is greater than or equal to the preset angle, so as to prompt a terminal device user to adjust the included angle according to the adjustment angle, so that the adjusted included angle is smaller than the preset angle.
Further, referring to fig. 6, the terminal device may further include a split screen module 55 and a control module 56, which are described in detail below.
The screen splitting module 55 is configured to split the display screen to obtain a main screen and a sub-screen.
The control module 56 is configured to control the main screen to display the display content of the terminal device, and the sub-screen to display the projection image of the projector.
Optionally, the preset angle satisfies the following condition:
cos(α+β)/cos(α-β)＜1/2
wherein α is the projection angle of the projector, and β is the preset angle.
An embodiment of the present invention further provides a terminal device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the projection method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
Specifically, fig. 7 is a schematic diagram of a hardware structure of a terminal device for implementing various embodiments of the present invention, where the terminal device 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, a power supply 711, and a projector 712. Those skilled in the art will appreciate that the terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and that the terminal device may include more or fewer components than those shown, or may combine certain components, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 710 is configured to determine an included angle between a display screen of the terminal device 700 and a projection screen of the projector 712, determine whether the included angle is smaller than a preset angle, and perform projection by using the projector 712 if the included angle is smaller than the preset angle.
The terminal device 700 of the embodiment of the present invention determines an included angle between a display screen of the terminal device and a projection screen of the projector, to determine whether the included angle is smaller than a preset angle, and performs projection by using the projector when the included angle is smaller than the preset angle, because a projection direction of the projector is generally perpendicular to the display screen of the terminal device, and a projection direction of the projector is perpendicular to the projection screen of the projector, that is, when the included angle between the display screen of the terminal device and the projection screen of the projector is 0, an effect of a projected image is optimal, and therefore, by comparing the included angle with the preset angle, on the premise that a projection effect of the projector is good, the projector is used for performing projection, thereby avoiding calibration by manually determining and manually adjusting a placement angle of the terminal device, simplifying operation, and improving a projection effect.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 701 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 710; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.
The terminal device provides the user with wireless broadband internet access through the network module 702, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.
The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the terminal device 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.
The input unit 704 is used to receive audio or video signals. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 701 in case of a phone call mode.
The terminal device 700 further comprises at least one sensor 705, such as light sensors, motion sensors and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the luminance of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 7061 and/or a backlight when the terminal device 700 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 706 is used to display information input by the user or information provided to the user. The Display unit 706 may include a Display panel 7061, and the Display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 710, receives a command from the processor 710, and executes the command. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 7071 may be overlaid on the display panel 7061, and when the touch panel 7071 detects a touch operation on or near the touch panel 7071, the touch operation is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although the touch panel 7071 and the display panel 7061 are shown in fig. 7 as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.
The interface unit 708 is an interface for connecting an external device to the terminal apparatus 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal apparatus 700 or may be used to transmit data between the terminal apparatus 700 and the external device.
The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 710 is a control center of the terminal device, connects various parts of the entire terminal device using various interfaces and lines, and performs various functions of the terminal device and processes data by operating or executing software programs and/or modules stored in the memory 709 and calling data stored in the memory 709, thereby performing overall monitoring of the terminal device. Processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.
The terminal device 700 may further include a power supply 711 (e.g., a battery) for supplying power to various components, and preferably, the power supply 711 may be logically connected to the processor 710 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
In addition, the terminal device 700 may further include some functional modules that are not shown, and are not described herein again.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the projection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium is, for example, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A projection method applied to a terminal device including a projector, comprising:
determining an included angle between a display screen of the terminal device and a projection screen of the projector;
judging whether the included angle is smaller than a preset angle or not;
if the included angle is smaller than the preset angle, projecting by using the projector;
wherein the preset angle satisfies the following condition:
cos(α+β)/cos(α-β)＜1/2
α is the projection angle of the projector, the value range is [ -45 degrees, 45 degrees ], under the condition that the projector determines, α is a fixed value, β is the preset angle;
the method further comprises the following steps:
if the included angle is larger than or equal to the preset angle, displaying an adjusting angle on a display screen of the terminal equipment to prompt a terminal equipment user to adjust the included angle according to the adjusting angle, so that the adjusted included angle is smaller than the preset angle.
2. The projection method according to claim 1, wherein the determining an angle between a display screen of the terminal device and a projection screen of the projector comprises:
and determining the included angle through the inclination angle of the terminal equipment relative to the vertical direction, which is detected by a gravity sensor in the terminal equipment, wherein the projection screen is positioned in the vertical direction.
3. The projection method of claim 1, wherein after the projecting with the projector, the method further comprises:
dividing the display screen to obtain a main screen and an auxiliary screen;
and controlling the main screen to display the display content of the terminal equipment, and controlling the auxiliary screen to display the projection image of the projector.
4. A terminal device including a projector, characterized in that the terminal device includes:
the determining module is used for determining an included angle between a display screen of the terminal equipment and a projection screen of the projector;
the judging module is used for judging whether the included angle is smaller than a preset angle or not;
the projection module is used for projecting by using the projector when the included angle is smaller than the preset angle;
wherein the preset angle satisfies the following condition:
cos(α+β)/cos(α-β)＜1/2
α is the projection angle of the projector, the value range is [ -45 degrees, 45 degrees ], under the condition that the projector determines, α is a fixed value, β is the preset angle;
the terminal device further includes:
and the display module is used for displaying an adjusting angle on a display screen of the terminal equipment when the included angle is larger than or equal to the preset angle so as to prompt a terminal equipment user to adjust the included angle according to the adjusting angle, so that the adjusted included angle is smaller than the preset angle.
5. The terminal device of claim 4, wherein the determining module is configured to: and determining the included angle through the inclination angle of the terminal equipment relative to the vertical direction, which is detected by a gravity sensor in the terminal equipment, wherein the projection screen is positioned in the vertical direction.
6. The terminal device according to claim 4, wherein the terminal device further comprises:
the screen splitting module is used for splitting the display screen to obtain a main screen and an auxiliary screen;
and the control module is used for controlling the main screen to display the display content of the terminal equipment, and the auxiliary screen to display the projection image of the projector.
7. A terminal device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program, when executed by the processor, implements the steps of the projection method according to any one of claims 1 to 3.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the projection method according to any one of claims 1 to 3.
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| CN201810082644.8A CN108271010B (en) | 2018-01-29 | 2018-01-29 | Projection method and terminal equipment |
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| CN201810082644.8A CN108271010B (en) | 2018-01-29 | 2018-01-29 | Projection method and terminal equipment |
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