CN113589886B - Electronic device and screen control method thereof - Google Patents
Electronic device and screen control method thereof Download PDFInfo
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- CN113589886B CN113589886B CN202010365035.0A CN202010365035A CN113589886B CN 113589886 B CN113589886 B CN 113589886B CN 202010365035 A CN202010365035 A CN 202010365035A CN 113589886 B CN113589886 B CN 113589886B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1647—Details related to the display arrangement, including those related to the mounting of the display in the housing including at least an additional display
- G06F1/1649—Details related to the display arrangement, including those related to the mounting of the display in the housing including at least an additional display the additional display being independently orientable, e.g. for presenting information to a second user
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
- G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1679—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for locking or maintaining the movable parts of the enclosure in a fixed position, e.g. latching mechanism at the edge of the display in a laptop or for the screen protective cover of a PDA
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1681—Details related solely to hinges
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
- G06F1/1686—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being an integrated camera
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- 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
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/013—Eye tracking input arrangements
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- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- User Interface Of Digital Computer (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention provides an electronic device and a screen control method thereof. The screen control method is suitable for an electronic device. The electronic device comprises a first display screen, a second display screen and a machine body. The first display screen is pivoted to the machine body along a first rotation axis, and the second display screen is arranged on the upper surface of the machine body. The method comprises the following steps. The line of sight of the user is detected by a line of sight sensor. In response to the projection of the line of sight on the second display screen at the preset position, determining the screen rotation angle according to the line of sight direction of the line of sight. And controlling the second display screen to rotate from the preset position to the display position along the second rotation axis according to the screen rotation angle, so that the viewing angle of the user watching the second display screen meets preset conditions.
Description
Technical Field
The present invention relates to electronic devices, and particularly to an electronic device and a screen control method thereof.
Background
With the vigorous development of information and communication technologies, and the development of various electronic devices and the progress of various functions equipped with the electronic devices, people are becoming more and more dense and inseparable from the electronic devices in life. Taking a notebook computer as an example, a general notebook computer is mostly composed of a machine body and a display screen, wherein the machine body and the display screen are pivoted with each other. The user can close the host computer and the display screen of the notebook computer through the relative rotation of the machine body and the display screen so as to be convenient to carry, and the display screen is unfolded when the notebook computer is to be used so as to be convenient to operate.
With the increase of information processing, single-screen notebook computers have not been able to meet the demands of workers. It has been a common operating scenario for users of notebook computers to use multiple screens to increase work efficiency. Therefore, in order to meet the working demands of users, notebook computers with dual screens are available on the market. However, in order to avoid the auxiliary screen from obscuring the main screen, the display direction of the auxiliary screen is generally fixed or requires manual adjustment by the user. In this case, the user may watch the auxiliary screen according to a poor viewing angle or need to repeatedly manually adjust the display direction of the auxiliary screen, thereby reducing viewing quality and causing inconvenience in use.
Disclosure of Invention
In view of this, the present invention provides an electronic device and a screen control method thereof, which can automatically adjust the display direction of the second display screen in the dual-screen according to the line of sight adaptability of the user, thereby improving the viewing quality and the operation convenience of the screen.
The embodiment of the invention provides a screen control method which is suitable for an electronic device. The electronic device comprises a first display screen, a second display screen and a machine body, wherein the first display screen is pivoted with the machine body along a first rotation axis. The method comprises the following steps. The line of sight of the user is detected by a line of sight sensor. In response to the projection of the line of sight on the second display screen at the preset position, determining the screen rotation angle according to the line of sight direction of the line of sight. And controlling the second display screen to rotate from the preset position to the display position along the second rotation axis according to the screen rotation angle, so that the viewing angle of the user watching the second display screen meets preset conditions. The second display screen is arranged on the upper surface of the machine body.
The embodiment of the invention provides an electronic device, which comprises a machine body, a first display screen, a second display screen, a sight line sensor and a processor. The first display screen is pivoted to the machine body along a first rotation axis, and the second display screen is arranged on the upper surface of the machine body. The processor is coupled to the first display screen, the second display screen and the line-of-sight sensor, and is configured to perform the following steps. The line of sight of the user is detected by a line of sight sensor. In response to the projection of the line of sight on the second display screen at the preset position, determining the screen rotation angle according to the line of sight direction of the line of sight. And controlling the second display screen to rotate from the preset position to the display position along the second rotation axis according to the screen rotation angle, so that the viewing angle of the user watching the second display screen meets preset conditions.
Based on the above, in the embodiment of the invention, when the user uses the electronic device having the first display screen and the second display screen, the second display screen can be rotated from the preset position to the display position providing a good viewing angle in real time in response to the gaze of the user. Therefore, the user can save the step of manually adjusting the second display screen and watch the second display screen at a good viewing angle, thereby greatly improving the operation convenience.
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
FIG. 1 is a functional block diagram of an electronic device according to an embodiment of the invention;
FIGS. 2A and 2B are schematic diagrams of an electronic device according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a second display device in a preset position and a display position according to an embodiment of the invention;
FIG. 4 is a flowchart of a screen control method according to an embodiment of the present invention;
FIGS. 5A-5C are schematic diagrams illustrating adjusting a display direction of a second display screen according to an embodiment of the invention;
FIG. 6 is a flowchart of a screen control method according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating adjusting a display direction of a second display screen according to an embodiment of the invention.
Description of the reference numerals
100, an electronic device;
110, a first display screen;
a second display screen 120;
130, a line-of-sight sensor;
140, a storage device;
150, a processor;
RA1, a first rotation axis;
RA2, a second rotation axis;
b1, a machine body;
s1, the upper surface;
k1, a keyboard;
r1 is a controllable pivoting mechanism;
DS1, display plane;
u1 and U2 are users;
d1, a moving direction;
θ1, θ2, θ3, screen rotation angle;
alpha is the viewing angle;
β1, a first screen rotation angle;
β2, a second screen rotation angle;
SL1, SL2, SL3, SL4, SL5, line of sight;
S401-S403, S601-S606.
Detailed Description
Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.
FIG. 1 is a functional block diagram of an electronic device according to an embodiment of the invention. Referring to fig. 1, the electronic device 100 includes a first display screen 110, a second display screen 120, a line-of-sight sensor 130, a storage device 140, and a processor 150. The electronic device 100 may be a notebook computer, an electronic book, or a game machine, etc. having a dual screen, and the present invention is not limited thereto.
The first display screen 110 and the second display screen 120 are display devices that can provide a display function, such as a liquid crystal display (Liquid Crystal Display, LCD), a Light-Emitting Diode (LED) display, a field emission display (Field Emission Display, FED), an Organic Light-Emitting Diode (OLED), or other types of displays, which the present invention is not limited to.
The line-of-sight sensor 130 is a device capable of detecting the line of sight of a user, such as an image sensor or an eye tracker, etc. Specifically, in one embodiment, the line-of-sight sensor 130 may include a face imaging module for performing line-of-sight detection according to face steering and pupil position by acquiring a face image and an eye image of the user. In an embodiment, the line-of-sight sensor 130 may include a light emitting module and an eye imaging module. The light emitting module of the line of sight sensor 130 emits a light beam toward the eyeball of the user, and the eye imaging module of the line of sight sensor 130 captures an eye image. The line-of-sight sensor 130 detects the pupil position and the bright spot position of the user in the eye image, and detects the line of sight of the present eyeball according to the position correspondence between the pupil position and the bright spot position. The bright spot positions are reflection spots formed by radiating light beams emitted by the light-emitting module to irradiate eyes of a user.
The storage device 140 is used to store data such as files, images, instructions, program codes, software components, and the like, and may be, for example, any type of fixed or removable random access memory (random access memory, RAM), read-only memory (ROM), flash memory (flash memory), hard disk or other similar devices, integrated circuits, and combinations thereof.
The processor 150 is coupled to the first display screen 110, the second display screen 120, the storage device 140 and the line-of-sight sensor 130 for controlling the operations among the components of the electronic device 100, such as a central processing unit (Central Processing Unit, CPU) or other general purpose or special purpose Microprocessor (Microprocessor), digital signal processor (Digital Signal Processor, DSP), programmable controller, application specific integrated circuit (Application Specific Integrated Circuits, ASIC), programmable logic device (Programmable Logic Device, PLD), graphics processor (Graphics Processing Unit, GPU or other similar devices or combinations thereof, the processor 150 can execute the program codes, software modules, instructions recorded in the storage device 140 to implement the screen control method according to the embodiments of the present invention.
However, in addition to the first display screen 110, the second display screen 120, the line-of-sight sensor 130, the storage device 140, and the processor 150, the electronic device 100 may further include other components not shown in fig. 1, such as a mouse, a speaker, a microphone, a keyboard, a communication component, and the like, to which the present invention is not limited.
Fig. 2A and 2B are schematic diagrams of an electronic device according to an embodiment of the invention. Referring to fig. 2A and 2B, the electronic device 100 may include a body B1 assembled by a plurality of devices, components and a casing. The first display screen 110 is pivoted to one side of the body B1 of the electronic device 100 along the first rotation axis RA 1. For example, the first display screen 110 may be connected to the body B1 through various pivoting mechanisms (such as a hinge assembly or a spindle assembly, etc.), so that the first display screen 110 may rotate relative to the body B1. When the electronic device 100 is in the closed state, the display plane of the first display screen 110 faces the upper surface S1 of the body. It is noted that the second display screen 120 is disposed on the upper surface S1 of the body B1. When the electronic device 100 is in the unfolded state, the user can simultaneously view the first display screen 110 and the second display screen 120. In an embodiment, the second display screen 120 disposed on the body B1 may be implemented as a touch screen while providing touch functions.
However, the size and the setting position of the second display screen 120 are not limited in the present invention, and may be designed according to practical requirements. Referring to fig. 2A and 2B, the second display screen 120 and the keyboard K1 are disposed on the upper surface S1 (also referred to as a keyboard surface) of the body B1. In the example of fig. 2A, the second display screen 120 is located below the keyboard K1. In the example of fig. 2B, the second display screen 120 is located above the keyboard K1.
It should be noted that, in the example of fig. 2A, the line-of-sight sensor 130 may be disposed at the lower side of the first display screen 110. In the example of fig. 2B, the line-of-sight sensor 130 may be disposed on the upper side of the first display screen 110. However, fig. 2A and 2B are only exemplary illustrations, and are not intended to limit the present invention. The configuration position of the line-of-sight sensor 130 may be designed according to actual requirements. In addition, the configuration position of the second display screen 120 on the upper surface S1 can be designed according to the actual requirement.
It should be noted that the second display screen 120 may rotate along the second rotation axis RA2 (the second rotation axis RA2 shown in fig. 2A and 2B) relative to the body B1. Accordingly, the second display screen 120 can be switched between a lying state (as shown in fig. 2A and 2B) lying on the body B1 and a standing state standing on the body B1. In an embodiment, the second display screen 120 can be switched between a lying state and an upright state according to the line of sight of the user, and rotated from a preset position in the lying state to a display position in the upright state. In addition, the screen rotation angle for rotating the second display screen 120 from the preset position to the display position is determined according to the line of sight of the user.
In detail, fig. 3 is a schematic diagram of a second display device in a preset position and a display position according to an embodiment of the invention. Referring to fig. 3, the second display screen 120 may be disposed in a recess of the body B1 through a controllable pivot mechanism R1 (e.g., a motor, a pneumatic cylinder, a spindle assembly or a hinge assembly, etc.). When the second display screen 120 is located at the preset position, the display plane DS1 of the second display screen 120 is substantially parallel to the upper surface S1 of the body B1. When it is detected that the user's line of sight is projected on the second display screen 120, the second display screen 120 is rotated to the display position along the second rotation axis RA2 to stand up. When the second display screen 120 is located at the display position in the standing state, an angle θ is formed between the display plane DS1 of the second display screen 120 and the upper surface S1 of the body B1. Here, the screen rotation angle for rotating the second display screen 120 from the preset position to the display position is the included angle θ between the display plane DS1 of the second display screen 120 and the upper surface S1 of the body B1. In addition, when the second display screen 120 is in the standing state, the display direction of the second display screen 120 can be dynamically adjusted according to the line of sight. That is, the display position of the second display screen 120 can be dynamically adjusted according to the line of sight.
Fig. 4 is a flowchart of a screen control method according to an embodiment of the present invention. Referring to fig. 4, the manner of the present embodiment is applicable to the electronic device 100 in the above embodiment, and the following description is made with respect to the detailed steps of controlling the second display screen 120 according to the user's line of sight by combining the components in the electronic device 100.
In step S401, the processor 150 detects the line of sight of the user through the line of sight sensor 130. The processor 150 may obtain gaze information via the gaze sensor 130, which may include gaze direction, eye position information, face orientation, pupil position, and the like. In one embodiment, the gaze direction may include a vector relative to a reference coordinate system (e.g., world coordinate system), and the eye position information may be a coordinate position relative to the reference coordinate system.
In step S402, in response to the line of sight being projected onto the second display screen 120 at the predetermined position, the processor 150 determines the screen rotation angle according to the line of sight direction of the line of sight. Specifically, when the second display screen 120 is laid down on the body B1. The processor 150 can determine whether the line of sight is projected on the second display screen 120 located at the preset position according to the line of sight information. When the line of sight is projected onto the second display screen 120 at the predetermined position, the processor 150 determines a screen rotation angle associated with the second display screen 120 according to the line of sight information. Here, in order to enable the user to view the second display screen 120 with a better viewing angle, the processor 150 may calculate the screen rotation angle for rotating the second display screen 120 according to a predetermined ideal viewing angle and the viewing direction. The predetermined ideal viewing angle is, for example, 90 degrees, 85 degrees or other predetermined parameter values according to actual requirements. Alternatively, the processor 150 may look up a table according to the viewing direction to obtain the corresponding rotation angle of the screen.
In step S403, the processor 150 controls the second display screen 120 to rotate from the preset position to the display position along the second rotation axis RA2 according to the screen rotation angle, so that the viewing angle of the user watching the second display screen 120 meets the preset condition. Specifically, after the second display screen 120 is controlled to rotate from the preset position to the display position along the second rotation axis RA2 according to the screen rotation angle, the viewing angle of the second display screen 120 (i.e., the angle between the viewing direction of the user and the display plane of the second display screen 120) is substantially equal to the preset ideal viewing angle.
Fig. 5A to 5C are schematic views illustrating adjusting a display direction of a second display screen according to an embodiment of the invention. Referring to fig. 5A, when the line of sight SL1 of the user U1 is projected on the first display screen 110 but not on the second display screen 120, the second display screen 120 is controlled to be located at a predetermined position, i.e. lying on the body B1. Referring to fig. 5B, when the line of sight SL2 of the user U1 is converted to be projected onto the second display screen 120, the electronic device 100 can determine the screen rotation angle θ1 according to the line of sight SL2, and the second display screen 120 is rotated to the display position according to the screen rotation angle θ1, so that the viewing angle α of the user U1 for viewing the second display screen 120 can be substantially equal to the predetermined ideal viewing angle. When the second display screen 120 is at the display position, the screen rotation angle θ1 is an angle between the display plane of the second display screen 120 and the upper surface S1 of the body B1. Referring to fig. 5C, when the user U1 moves to another viewing position in the moving direction D1 approaching the second display screen 120, the electronic device 100 can determine the screen rotation angle θ2 according to the line of sight SL3, and the second display screen 120 rotates to another display position according to the screen rotation angle θ2, so that the viewing angle α of the user U1 for viewing the second display screen 120 is still substantially equal to the predetermined ideal viewing angle.
Accordingly, the display direction of the second display screen 120 can be automatically and dynamically adjusted according to the line of sight of the user. Therefore, when the user views the first display screen 110, the display screen of the first display screen 110 is not obscured by the second display screen 120. When the user views the second display screen 120, the user can view the second display screen 120 at a desired viewing angle to obtain a good viewing experience.
However, the implementation of the present invention is not limited to the above description, and the contents of the above embodiments may be changed as appropriate for actual demands. For example, in another embodiment of the present invention, the electronic device may adjust the display direction of the second display screen 120 according to the line of sight of the multiple users, so that the viewing angle difference of the multiple users watching the second display screen 120 may be reduced to obtain a similar watching experience. The following is a detailed description of another embodiment.
Fig. 6 is a flowchart of a screen control method according to an embodiment of the present invention. Referring to fig. 6, the manner of the present embodiment is applicable to the electronic device 100 in the above embodiment, and the following description is made with respect to the detailed steps of controlling the second display screen 120 according to the user's line of sight by the present embodiment with respect to each component in the electronic device 100.
In step S601, the processor 150 first controls the second display screen 120 to be located at a predetermined position. In step S602, the processor 150 detects the line of sight of the user through the line of sight sensor 130. In step S603, when the second display screen 120 is located at the preset position, the processor 150 determines whether the line of sight is projected on the second display screen 120 located at the preset position according to the eye position information and the line of sight direction of the user. In an embodiment, in a reference coordinate system, the processor 150 may determine whether the user's gaze is directed within the display range of the second display screen 120 located at the predetermined position according to the coordinate positions of the eyes and the gaze vector (i.e. the gaze direction). The above-described display range corresponds to a specific area range on one reference plane (e.g., the upper surface S1 of the body B1) in the reference coordinate system.
If the determination in step S603 is negative, in step S604, the processor 150 controls the second display screen 120 to maintain the predetermined position in response to the line of sight not projected on the second display screen 120 at the predetermined position. As can be seen, when the line of sight is projected on the first display screen 110, the processor 150 controls the second display screen 120 to maintain the predetermined position. If the determination in step S603 is yes, in step S605, the processor 150 determines the screen rotation angle according to the direction of the line of sight in response to the line of sight being projected on the second display screen 120 located at the predetermined position. In the present embodiment, step S605 may be implemented as sub-steps S6051-S6052. In sub-step S6051, the processor 150 detects another line of sight of another user through the line of sight sensor 130. In sub-step S6052, the processor 150 calculates the screen rotation angle according to the line-of-sight direction of the line of sight and the other line-of-sight direction of the other line of sight.
In one embodiment, the processor 150 may perform a weighted calculation according to the first weight information of the user, the second weight information of the other user, the line of sight direction of the user, and the other line of sight direction of the other user to obtain the screen rotation angle. For example, the processor 150 may calculate a first screen rotation angle according to a line of sight direction of a user and calculate a second screen rotation angle according to another line of sight direction of another user. Then, the processor 150 performs a weighted calculation according to the first screen rotation angle, the second screen rotation angle, the first weight information of the first screen rotation angle, and the second weight information of the second screen rotation angle, so as to calculate a final screen rotation angle. For example, assuming that the first screen rotation angle corresponding to the main user is 30 degrees, the second screen rotation angle corresponding to the other user is 50 degrees, the first weight information is 0.7 and the second weight information is 0.3, the processor 150 may calculate that the screen rotation angle is 36 degrees (30×0.7+50×0.3=36).
In one embodiment, the processor 150 may determine the first weight information according to the distance between the user and the second display screen 120, and determine the second weight information according to the distance between the other user and the second display screen 120. For example, the processor 150 may determine the corresponding weight information according to the distance between the multiple users and the second display screen 120 through table look-up or function calculation, and the distance between the users and the second display screen 120 may be implemented through any feasible distance measurement technology, which is not limited by the present invention. For example, the processor 150 may determine the first weight information and the second weight information according to a distance ratio between a distance between the user and the second display screen 120 and a distance between another user and the second display screen 120.
In other embodiments, the processor 150 may determine the screen rotation angle for rotating the second display screen 120 based on the line of sight of multiple users according to other calculation processes. For example, the processor 150 may calculate the reference line of sight direction according to the two line of sight directions of the two users, and then generate the screen rotation angle according to the reference line of sight direction and the preset ideal viewing angle.
It should be noted that, in the embodiment shown in fig. 6, when the line of sight of the main user is projected on the second display screen 120, the processor 150 detects another line of sight of another user through the line of sight sensor 130, so as to adjust the display direction of the second display screen according to the multiple lines of sight of multiple users. Otherwise, when the line of sight of the primary user is not projected on the second display screen 120, the processor 150 does not detect another line of sight of another user through the line of sight sensor 130, nor does it rotate the second display screen 120 to the display state. In one embodiment, when there are multiple users, the processor 150 may detect the distance between the users and the electronic device 100 to determine the primary user.
Finally, in step S606, the second display screen 120 is controlled to rotate from the preset position to the display position along the second rotation axis according to the screen rotation angle, so that the viewing angle of the second display screen 120 viewed by the user and another user meets the preset condition. Accordingly, the viewing angle difference between the user and another user watching the second display screen 120 can be reduced, so as to avoid the obvious fall of the display information acquired from the second display screen 120 by multiple users.
FIG. 7 is a diagram illustrating adjusting a display direction of a second display screen according to an embodiment of the invention. Referring to fig. 7, when the line of sight SL4 of the user U1 is projected onto the second display screen 120, the electronic device 100 can determine the first screen rotation angle β1 according to the line of sight SL4, and determine the second screen rotation angle β2 according to another line of sight SL5 of another user U2. Then, the electronic device 100 can determine the screen rotation angle θ3 according to the average operation, the weighted operation or other functional operation of the first screen rotation angle β1 and the second screen rotation angle β2, and the second display screen 120 rotates to the display position according to the screen rotation angle θ3, so that the viewing angles of the user U1 and the other user U2 viewing the second display screen 120 can be as close to the predetermined ideal viewing angle as possible.
In summary, in the embodiment of the invention, in response to the user's line of sight being projected onto the second display screen located at the predetermined position, the second display screen may be rotated to the display position according to the screen rotation angle, so that the viewing angle of the user viewing the second display screen may be closer to the ideal viewing angle. Therefore, when the user views the first display screen, the display content of the first display screen is not obscured by the second display screen. When the user views the second display screen, the deformation degree of the display content of the second display screen is small, and the user does not need to manually adjust the display direction of the second display screen. Therefore, the operation convenience and the viewing experience can be greatly improved. In addition, by adjusting the display direction of the second display screen according to the sight lines of multiple users, the display information acquired from the second display screen by the multiple users can be prevented from generating obvious fall.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. A screen control method suitable for an electronic device, wherein the electronic device comprises a first display screen, a second display screen and a machine body, the first display screen is pivoted to the machine body along a first rotation axis, the method comprises:
detecting a line of sight of a user by a line of sight sensor;
in response to the projection of the sight line on the second display screen at a preset position in a lying state, determining a screen rotation angle according to the sight line direction of the sight line; and
controlling the second display screen to rotate from the preset position to a display position in an upright state along a second rotation axis according to the screen rotation angle so that the view angle of the user watching the second display screen meets preset conditions,
wherein the second display screen is arranged on the upper surface of the machine body,
when the second display screen is positioned at the display position, the screen rotation angle is an included angle between the display plane of the second display screen and the upper surface of the machine body.
2. The screen control method according to claim 1, wherein when the second display screen is located at the preset position, a display plane of the second display screen is parallel to the upper surface of the body.
3. The screen control method according to claim 1, wherein the step of calculating the screen rotation angle according to the line-of-sight direction of the line of sight in response to the line-of-sight being projected on the second display screen at the preset position comprises:
when the second display screen is positioned at the preset position, judging whether the sight line is projected on the second display screen positioned at the preset position according to the eye position information of the user and the sight line direction; and
and in response to the projection of the sight line on the second display screen positioned at the preset position, calculating the screen rotation angle according to a preset ideal viewing angle and the sight line direction of the sight line.
4. The screen control method according to claim 1, the method further comprising:
and controlling the second display screen to be kept at the preset position in response to the fact that the sight line is not projected on the second display screen at the preset position.
5. The screen control method according to claim 1, wherein the step of calculating the screen rotation angle in accordance with the line-of-sight direction of the line of sight includes:
detecting, by the line-of-sight sensor, another line of sight of another user; and
and calculating the rotation angle of the screen according to the sight line direction of the sight line and the other sight line direction of the other sight line.
6. The screen control method according to claim 5, wherein the step of calculating the screen rotation angle from the line-of-sight direction of the line of sight and the other line-of-sight direction of the other line of sight includes:
and carrying out weighted calculation according to the first weight information of the user, the second weight information of the other user, the sight line direction and the other sight line direction so as to acquire the screen rotation angle.
7. The screen control method of claim 6, the method further comprising:
and determining the first weight information according to the distance between the user and the second display screen, and determining the second weight information according to the distance between the other user and the second display screen.
8. An electronic device, comprising:
a body;
the first display screen is pivoted to the machine body along a first rotation axis;
the second display screen is arranged on the upper surface of the machine body;
a line-of-sight sensor;
a processor coupled to the first display screen, the second display screen, and the line-of-sight sensor, configured to:
detecting a line of sight of a user by the line of sight sensor;
in response to the projection of the sight line on the second display screen at a preset position in a lying state, determining a screen rotation angle according to the sight line direction of the sight line; and
controlling the second display screen to rotate from the preset position to a display position in an upright state along a second rotation axis according to the screen rotation angle so that the view angle of the user watching the second display screen meets preset conditions,
when the second display screen is positioned at the display position, the screen rotation angle is an included angle between the display plane of the second display screen and the upper surface of the machine body.
9. The electronic device of claim 8, wherein the processor is further configured to:
when the second display screen is positioned at the preset position, judging whether the sight line is projected on the second display screen positioned at the preset position according to the eye position information of the user and the sight line direction; and
and in response to the projection of the sight line on the second display screen positioned at the preset position, calculating the screen rotation angle according to a preset ideal viewing angle and the sight line direction of the sight line.
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