CN114442321A - Display control method and device of display equipment, display equipment and electronic equipment - Google Patents
Display control method and device of display equipment, display equipment and electronic equipment Download PDFInfo
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- 238000004364 calculation method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 20
- 238000003384 imaging method Methods 0.000 description 17
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- 230000001179 pupillary effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 210000001747 pupil Anatomy 0.000 description 3
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
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Abstract
The application relates to a display control method and device of a display device, the display device, an electronic device and a computer readable storage medium, and relates to the technical field of display control.
Description
Technical Field
The present disclosure relates to the field of display control technologies, and in particular, to a display control method and apparatus for a display device, an electronic device, and a computer-readable storage medium.
Background
Two lens cones are arranged on a Virtual Reality (VR) device, and correspond to two eyes of a person one by one. After wearing the VR device, a user can view the imaging result of the VR device on the image in the display screen through the lens barrel. At present, because the interpupillary distance of people is different, VR equipment can make the distance between two lens barrels adjustable in the design to satisfy the user of different interpupillary distances and control the display image center distance requirement of central distance to two lens barrels, realize higher definition.
In practical situations, after the distance between the two lens barrels is adjusted, the problem that an image in an imaging result is not clear enough occurs, and discomfort is caused to a user.
Disclosure of Invention
An object of the present application is to provide a new technical solution for display control of a display device.
According to a first aspect of the present application, there is provided a control method of a display apparatus, the display apparatus including a first barrel, a second barrel, an optical signal transceiver provided on the first barrel, and an optical signal reflector provided on the second barrel, the optical signal transceiver and the optical signal reflector being disposed opposite to each other, the method including: controlling the optical signal transceiver to transmit a detection signal and receive a reflection signal; wherein, the reflected signal is obtained by the optical signal reflector reflecting the detection signal; calculating the time interval of sending the detection signal and receiving the reflected signal by the optical signal transceiver; calculating a center distance between a barrel center of the first barrel and a barrel center of the second barrel according to the time interval; the center of the lens barrel is the optical center of the lens in the lens barrel; and adjusting the positions of the first image and the second image displayed by the display screen according to the center distance so that the image center of the first image is superposed with the first projection of the lens barrel center of the first lens barrel on the display screen and the image center of the second image is superposed with the second projection of the lens barrel center of the second lens barrel on the display screen.
Optionally, adjusting the position of the display screen for displaying the first image and the second image according to the center distance includes: determining a first position of a lens barrel center of the first lens barrel and a second position of a lens barrel center of the second lens barrel according to the center distance; obtaining a first projection position of the first position on the display screen and a second projection position of the second position on the display screen; and adjusting the image center of the first image to a first projection position and the image center of the second image to a second projection position in the display screen.
Optionally, adjusting the position of the display screen for displaying the first image and the second image according to the center distance includes: acquiring the current historical center distance between the lens barrel center of the first lens barrel and the lens barrel center of the second lens barrel; calculating the difference between the center distance and the historical center distance; determining the moving distance and the moving direction of the first image and the second image according to the difference value; adjusting the positions of the first image and the second image according to the determination result; after the positions of the display screen for displaying the first image and the second image are adjusted according to the center distance, the display control method further comprises the following steps: recording the center distance as the historical center distance.
Optionally, the optical signal reflector is a gray card.
According to the second aspect of the present application, there is also provided a control apparatus of a display device, the display device including a first barrel, a second barrel, an optical signal transceiver provided on the first barrel, and an optical signal reflector provided on the second barrel, the optical signal transceiver and the optical signal reflector being disposed opposite to each other, the apparatus including: the control module is used for controlling the optical signal transceiver to send the detection signal and receive the reflection signal; wherein, the reflected signal is obtained by the optical signal reflector reflecting the detection signal; the calculation module is used for calculating the time interval of the optical signal transceiver for sending the detection signal and receiving the reflection signal; the processing module is used for calculating the center distance between the lens cone center of the first lens cone and the lens cone center of the second lens cone according to the time interval; the center of the lens barrel is the optical center of the lens in the lens barrel; the adjusting module is used for adjusting the positions of the first image and the second image displayed by the display screen according to the center distance, so that the image center of the first image is superposed with the first projection of the lens cone center of the first lens cone on the display screen, and the image center of the second image is superposed with the second projection of the lens cone center of the second lens cone on the display screen.
Optionally, the adjusting module is configured to: determining a first position of a lens barrel center of the first lens barrel and a second position of a lens barrel center of the second lens barrel according to the center distance; obtaining a first projection position of the first position on the display screen and a second projection position of the second position on the display screen; and adjusting the image center of the first image to a first projection position and the image center of the second image to a second projection position in the display screen.
Optionally, the adjusting module is configured to: acquiring the current historical center distance between the lens barrel center of the first lens barrel and the lens barrel center of the second lens barrel; calculating the difference between the center distance and the historical center distance; determining the moving distance and the moving direction of the first image and the second image according to the difference value; adjusting the positions of the first image and the second image according to the determination result; the display control apparatus further includes: and the recording module is used for recording the central distance as the historical central distance after the adjusting module adjusts the positions of the first image and the second image displayed by the display screen according to the central distance.
Optionally, the optical signal reflector is a gray card.
According to a third aspect of the present application, there is also provided a display device including: the display device comprises a first lens barrel, a second lens barrel, an optical signal transceiver arranged on the first lens barrel, and an optical signal reflector arranged on the second lens barrel, wherein the optical signal transceiver and the optical signal reflector are arranged oppositely, and the display device further comprises: as in the display control device of any of the above embodiments, the display control device is coupled to the optical signal transceiver.
According to a fourth aspect of the present application, there is also provided an electronic device comprising a memory for storing a computer program and a processor; the processor is adapted to execute a computer program to implement the method according to the first aspect of the present application.
According to a fifth aspect of the present application, there is also provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method according to the first aspect of the present application.
The display device comprises a first lens barrel, a second lens barrel, an optical signal transceiver arranged on the first lens barrel and an optical signal reflector arranged on the second lens barrel, wherein the optical signal transceiver and the optical signal reflector are arranged oppositely; wherein, the reflected signal is obtained by the optical signal reflector reflecting the detection signal; then calculating the time interval of the optical signal transceiver for sending the detection signal and receiving the reflection signal, and calculating the center distance between the lens cone center of the first lens cone and the lens cone center of the second lens cone according to the time interval; the center of the lens barrel is the optical center of the lens in the lens barrel; finally, the positions of the first image and the second image displayed by the display screen are adjusted according to the center distance, so that the image center of the first image is superposed with the first projection of the lens cone center of the first lens cone on the display screen, and the image center of the second image is superposed with the second projection of the lens cone center of the second lens cone on the display screen, the problem that the image definition in the imaging result of part of users is insufficient in the display equipment provided with the two lens cones is effectively solved, and the image definition in the imaging result of the display equipment is effectively ensured.
Further features of embodiments of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the embodiments of the application.
Fig. 1 is a schematic structural diagram of a VR device in the related art;
FIG. 2 is a schematic diagram of a display area and a displayed image in a display screen of a VR device in the related art;
fig. 3 is a flowchart of a method of controlling a display of a display device according to some embodiments of the present disclosure;
FIG. 4 is a schematic structural diagram of a display device according to some embodiments of the present application;
FIG. 5 is a schematic diagram of an optical signal transceiver and an optical signal reflector provided in accordance with some embodiments of the present application;
FIG. 6 is a flowchart of a method of controlling a display of a display device according to some embodiments of the present disclosure;
fig. 7 is a flowchart illustrating a method of controlling a display of a display device according to some embodiments of the present disclosure;
fig. 8 is a functional structure block diagram of a display control apparatus of a display device according to some embodiments of the present application;
FIG. 9 is a schematic diagram of a display device according to some embodiments of the present application;
fig. 10 is a schematic hardware structure diagram of an electronic device according to some embodiments of the present application.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1, two lens barrels are provided on a VR device, and the two lens barrels correspond to two eyes of a person one by one. For any lens barrel and an image to be imaged by the lens barrel, the closer the projection of the optical center C0 of the lens in the lens barrel on the display screen is to the first center C1 of the image on the display screen, the clearer the image in the imaging result viewed by a user through the lens barrel is; conversely, the farther the projection of the optical center C0 of the lens in the lens barrel on the display screen is from the first center C1 of the image on the display screen, the more blurred the image in the imaging result viewed by the user through the lens barrel.
As shown in fig. 1, the human pupillary distance (the distance between the second center C21 of the left-eye pupil and the second center C22 of the right-eye pupil) is different and is usually in the range of 53cm to 73cm, and in this case, if the distance between the two lens barrels is fixed, the human pupillary distance is moderate (the pupillary distance is equal to the distance between the two lens barrels), the pupillary distance is large (the pupillary distance is greater than the distance between the two lens barrels), and the pupillary distance is small (the pupillary distance is smaller than the distance between the two lens barrels). Based on the design that the distance between two lens barrels on VR equipment is adjustable, the user can adjust the distance between the lens barrels according to the interpupillary distance of oneself for the relation between the distance between the interpupillary distance of oneself and two lens barrels is that the interpupillary distance is moderate. Meanwhile, in order to ensure the image clarity in the imaging result viewed by the user, the display screen is designed to be adjustable in image position.
As shown in (1) to (3) of fig. 2, a display screen of the VR device is provided with a display area a, which may be a left-eye display area a1 or a right-eye display area a2, a left-eye image is displayed in the left-eye display area a1, and a right-eye image is displayed in the right-eye display area a 2. For any display area A, the area of the display area A is larger than that of the image displayed in the display area A, so that the position of the image in the display area A can be changed according to actual needs.
With continued reference to (1) to (3) in fig. 2, the display position of the image in the display area a is variable. In the horizontal direction, as shown in (1) in fig. 2, the center position (first center C1) of the image in the display area a may be shifted to the left with respect to the center position (third center C3) of the display area a; as shown in (2) in fig. 2, the center position of the image in the display area a may coincide with the center position of the display area a; as shown in (3) in fig. 2, the center position of the image in the display area a may be shifted to the right with respect to the center position of the display area a.
Based on the design of the display screen, the position of the image in the display screen can be adjusted, so that the center of the pupil of the human eye, the optical center of the lens in the lens barrel and the center of the image in the display screen are positioned on the same straight line, and the image in the imaging result viewed by the user is a clear image.
However, in practical situations, the distance between two lens barrels is detected by using a magnet based on the hall effect, and the accuracy of the detection result is poor, so that some users cannot obtain clear display images, and discomfort is caused to the users.
Based on the existing problems, the application provides a display control method and device of a display device, the display device, an electronic device and a computer readable storage medium, so as to solve the problem that in the display device provided with two lens barrels, the image definition in the imaging result of part of users is insufficient.
Fig. 3 is a flowchart of a method of controlling a display of a display device according to some embodiments of the present disclosure.
As shown in fig. 3, the method includes the following steps S310 to S340.
Step S310: controlling the optical signal transceiver to transmit a detection signal and receive a reflection signal; wherein, the reflected signal is obtained by the optical signal reflector reflecting the detection signal.
Before describing step S310, the display device in the present application is first described.
The display device in the application comprises a first lens barrel, a second lens barrel, an optical signal transceiver arranged on the first lens barrel, and an optical signal reflector arranged on the second lens barrel. The optical signal transceiver and the optical signal reflector are oppositely arranged, so that an optical signal sent by the optical signal transceiver can reach the optical signal reflector and be reflected by the optical signal reflector to a position for receiving the optical signal in the optical signal transceiver.
In some examples, the optical signal transceiver is disposed on an outer wall of the first barrel and the optical signal reflector is disposed on an outer wall of the second barrel.
As shown in fig. 4, the display apparatus 40 includes a first barrel 41, a second barrel 42, an optical signal transceiver 43, an optical signal reflector 44, and a display screen 45. Wherein, the optical signal transceiver 43 is disposed on the outer wall of the first barrel 41, and the optical signal reflector 44 is disposed on the outer wall of the second barrel 42. The optical signal transceiver 43 and the optical signal reflector 44 are disposed in spaced opposition.
Of course, it will be understood that the arrangement of optical signal transceiver 43 and optical signal reflector 44 shown in fig. 4 is merely exemplary. In the embodiment of the present application, the arrangement method of the optical signal transceiver and the optical signal reflector includes, but is not limited to, the manner shown in fig. 4, for example, a first through hole is formed on the first barrel, a second through hole is formed on the second barrel, the optical signal transceiver is fixed on the inner wall of the first barrel, and at least a part of the optical signal transceiver (a part for transmitting and receiving an optical signal) is exposed to the air through the first through hole, the optical signal reflector is fixed on the inner wall of the second barrel, and at least a part of the optical signal reflector is exposed to the air through the second through hole.
The first barrel 41 and the second barrel 42 are used to image a first image 46 and a second image 47 displayed on the display screen 45, respectively. The first lens barrel 41 is used for imaging the first image 46, and a user can view the imaging result of the first image 46 by the first lens barrel 41 through the first lens barrel 41; the second barrel 42 is used for imaging the second image 47, and the user can view the imaging result of the second image 47 by the second barrel 42 through the second barrel 42.
In some examples, the first barrel 41 is a left eye barrel corresponding to a left eye of a user, and the second barrel 42 is a right eye barrel corresponding to a right eye of the user.
In other examples, the first barrel 41 is a right-eye barrel corresponding to a right eye of the user, and the second barrel 42 is a left-eye barrel corresponding to a left eye of the user.
The distance between the first barrel 41 and the second barrel 42 is adjustable, and the implementation manner of the adjustment can be set by those skilled in the art according to actual situations, which is not limited by the embodiments of the present application.
In some examples, as shown in fig. 5, the optical signal transceiver 43 includes a transmitting unit 431, and a receiving unit 432. The transmitting unit 431 is used for emitting a detection signal, which is reflected by the optical signal reflector 44 to the receiving unit 432 when transmitted to the optical signal reflector 44.
The number of the transmitting units 431 may be one. The number of the receiving units 432 may be one or more (only one receiving unit 432 is exemplarily shown in fig. 5), so as to ensure the probability that the optical signal transceiver 43 receives the detection signal (i.e., the reflection signal) reflected by the optical signal reflector 44 to the maximum extent, and improve the response efficiency.
The optical signal transceiver 43 may be, for example, a device such as a photosensor that can receive and transmit an optical signal (i.e., a detection signal), and the optical signal reflector 44 may be, for example, a device such as a gray card that can reflect an optical signal.
It should be noted that, the setting position of the optical signal transceiver 43 on the outer wall of the first barrel and the setting position of the optical signal reflector 44 on the outer wall of the second barrel are set by those skilled in the art according to actual situations, as long as it is ensured that the detection signal emitted by the emitting unit 431 on the optical signal transceiver 43 can be reflected by the optical signal reflector 44 back to the receiving unit 432 of the optical signal transceiver 43.
In step S310, the optical signal transceiver may be controlled to transmit the detection signal and receive the reflection signal at preset time intervals, or may be controlled to transmit the detection signal and receive the reflection signal in a case where it is detected that the first barrel and the second barrel are adjusted. The preset time interval and the manner of detecting whether the first barrel and the second barrel are adjusted may be set by those skilled in the art according to actual conditions, and the embodiment of the present application is not limited thereto.
Step S320: the time interval between the sending of the detection signal and the receiving of the reflected signal by the optical signal transceiver is calculated.
As shown in fig. 5, the transmitting unit 431 in the optical signal transceiver 43 transmits a detection signal, which changes its propagation path after being reflected by the optical signal reflector 44, and becomes a reflected signal under this condition. When the preset time interval is greater than the time interval between the sending of the detection signal and the receiving of the reflection signal by the optical signal transceiver, the time when the detection signal is sent may be recorded as a first time, the time when the reflection signal is received may be recorded as a second time, and a time difference between the second time and the first time is obtained as the time interval; when the preset time interval is smaller than the time interval between the sending of the detection signal and the receiving of the reflected signal by the optical signal transceiver, the time when the detection signal is sent n times may be recorded as a first time, the time when the reflected signal is received n times may be recorded as a second time, and a time difference between the second time and the first time may be obtained as the time interval. Wherein n is a natural number and n > 0.
Step S330: calculating a center distance between a barrel center of the first barrel and a barrel center of the second barrel according to the time interval; the center of the lens barrel is the optical center of the lens in the lens barrel.
For example, referring to fig. 4, the distance between the optical signal transceiver 43 and the optical signal reflector 44 in the horizontal direction may be taken as the first distance d1, and a first relationship between the actual path length of the detection signal traveling from the optical signal transceiver 43 to the optical signal reflector 44 and the first distance may be preset according to the arrangement positions of the optical signal transceiver 43 and the optical signal reflector 44 on the outer wall of the corresponding lens barrel, in which case, the actual path length may be calculated according to the time interval, and then the first distance d1 may be calculated according to the actual path length and the first relationship.
For example, the detection signal may be considered to travel a round trip along the actual path from the optical signal transceiver 43 to the optical signal reflector 44, in this case, the time interval is t, the propagation speed of the detection signal is v, and the actual path s1 may be calculated by the following formula:
s1＝(v×t)/2。
after the actual distance is obtained, the first distance can be obtained according to a first relation between the preset actual distance and the first distance. After that, the center distance is obtained according to the first distance and a preset second relation between the first distance and the center distance.
Illustratively, referring to fig. 4, the first distance between the optical signal transceiver 43 and the optical signal reflector 44 in fig. 4 is d1, the center distance between the barrel center of the first barrel and the barrel center of the second barrel is d2, and the relationship between the first distance d1 and the center distance d2 can be approximately regarded as the following relationship:
d2＝d1+d3+d4；
where d3 is the second distance from the optical signal transceiver 43 to the barrel center of the first barrel, and d4 is the third distance from the optical signal reflector 44 to the barrel center of the second barrel.
Step S340: and adjusting the positions of the first image and the second image of the display screen according to the center distance so that the image center of the first image is superposed with the first projection of the lens barrel center of the first lens barrel on the display screen and the image center of the second image is superposed with the second projection of the lens barrel center of the second lens barrel on the display screen.
In some examples, as shown in fig. 6, the execution process of step S330 may include the following steps S610 to S630:
step S610: according to the center distance, a first position of a barrel center of the first barrel and a second position of a barrel center of the second barrel are determined.
A coordinate system can be established in advance, then a first coordinate of the lens cone center of the first lens cone is determined in the pre-established coordinate system according to the center distance, and a position corresponding to the first coordinate is taken as a first position; and determining a second coordinate of the lens barrel center of the second lens barrel in a pre-established coordinate system, and taking a position corresponding to the second coordinate as a second position.
Step S620: a first projection position of the first position on the display screen and a second projection position of the second position on the display screen are obtained.
A plane passing through the lens barrel centers of the first lens barrel and the second lens barrel may be set as a lens barrel center plane, and a second relationship between each coordinate position on the lens barrel center plane and a projection coordinate position on the display screen corresponding to the coordinate position may be set in advance based on the above coordinate system. When step S620 is executed, a first projection coordinate corresponding to the first coordinate on the display screen may be obtained according to the first coordinate and the second relationship, and a position where the first projection coordinate is located is taken as a first projection position; and obtaining a second projection coordinate corresponding to the second coordinate on the display screen according to the second coordinate and the second relation, and taking the position of the second projection coordinate as a second projection position.
Step S630: and adjusting the image center of the first image to a first projection position and the image center of the second image to a second projection position in the display screen.
The first image and the second image are translated in the horizontal direction, so that the coordinates of the center of the translated first image coincide with the first projection coordinates, and the coordinates of the center of the translated second image coincide with the second projection coordinates.
In some embodiments, as shown in FIG. 7, the step S330 may include the following steps S710-S740.
Step S710: and acquiring the currently recorded historical center distance between the lens barrel center of the first lens barrel and the lens barrel center of the second lens barrel.
The history center distance is a distance between a current barrel center of the first barrel and a barrel center of the second barrel. The historical center distance is stored in a preset storage location from which it can be retrieved directly. The historical center distance acquired from the storage position for the first time is the initial center distance stored in advance. That is, in a case where the user never adjusts the distance between the barrel center of the first barrel and the barrel center of the second barrel, the distance between the barrel center of the first barrel and the barrel center of the second barrel is measured accurately in advance and taken as the initial center distance.
Step S720: the difference between the center distance and the historical center distance is calculated.
Step S730: and determining the moving distance and the moving direction of the first image and the second image according to the difference.
For example, in the case where the difference is greater than zero, it is determined that the moving direction of the left-eye image is leftward, the moving direction of the right-eye image is rightward, and the moving distance of the first image and the second image is one-half of the absolute value of the difference.
And in the case that the difference value is less than zero, determining that the moving direction of the left-eye image is rightward, the moving direction of the right-eye image is leftward, and the moving distance of the first image and the second image is half of the absolute value of the difference value.
In the case where the difference is equal to zero, it is determined that the moving distance of the first image and the second image is 0, that is, the positions of the first image and the second image are not adjusted.
Step S740: and adjusting the positions of the first image and the second image according to the determination result.
The first image is moved by the movement distance of the first image in the movement direction of the first image, and the second image is moved by the movement distance of the second image in the movement direction of the second image.
In the case of performing steps S710 to S740, after performing steps S710 to S740, the embodiment of the present application further performs: recording the center distance as the historical center distance.
Specifically, the center distance is recorded as the history center distance, so that after the center distance is measured next time, the moving distance and the moving direction of the first image and the second image can be determined according to the history center distance and the center distance obtained again by taking the history center distance as a reference, and the positions of the first image and the second image can be adjusted according to the determination result.
Therefore, the display device comprises a first lens barrel, a second lens barrel, an optical signal transceiver arranged on the first lens barrel, and an optical signal reflector arranged on the second lens barrel, wherein the optical signal transceiver and the optical signal reflector are arranged oppositely; wherein, the reflected signal is obtained by the optical signal reflector reflecting the detection signal; then calculating the time interval of the optical signal transceiver for sending the detection signal and receiving the reflection signal, and calculating the center distance between the lens cone center of the first lens cone and the lens cone center of the second lens cone according to the time interval; the center of the lens barrel is the optical center of the lens in the lens barrel; finally, the positions of the first image and the second image displayed by the display screen are adjusted according to the center distance, so that the image center of the first image is superposed with the first projection of the lens cone center of the first lens cone on the display screen, and the image center of the second image is superposed with the second projection of the lens cone center of the second lens cone on the display screen, the problem that the image definition in the imaging result of part of users is insufficient in the display equipment provided with the two lens cones is effectively solved, and the image definition in the imaging result of the display equipment is effectively ensured.
< apparatus embodiment >
Fig. 8 is a functional structure block diagram of a display control apparatus of a display device according to some embodiments of the present application. The display device comprises a first lens barrel, a second lens barrel, an optical signal transceiver arranged on the first lens barrel and an optical signal reflector arranged on the second lens barrel, wherein the optical signal transceiver and the optical signal reflector are oppositely arranged. As shown in fig. 8, the display control apparatus 80 may include a control module 81, a calculation module 82, a processing module 83, and an adjustment module 84.
A control module 81 for controlling the optical signal transceiver to transmit the detection signal and receive the reflection signal; wherein, the reflected signal is obtained by the optical signal reflector reflecting the detection signal.
And a calculating module 82, configured to calculate a time interval between sending the detection signal and receiving the reflected signal by the optical signal transceiver.
A processing module 83, configured to calculate a center distance between a barrel center of the first barrel and a barrel center of the second barrel according to the time interval; the center of the lens barrel is the optical center of the lens in the lens barrel.
And the adjusting module 84 is configured to adjust positions of the first image and the second image displayed on the display screen according to the center distance, so that an image center of the first image coincides with a first projection of a lens barrel center of the first lens barrel on the display screen, and an image center of the second image coincides with a second projection of the lens barrel center of the second lens barrel on the display screen.
Optionally, the adjusting module is configured to: determining a first position of a lens barrel center of the first lens barrel and a second position of a lens barrel center of the second lens barrel according to the center distance; obtaining a first projection position of the first position on the display screen and a second projection position of the second position on the display screen; and adjusting the image center of the first image to a first projection position and the image center of the second image to a second projection position in the display screen.
Optionally, the adjusting module is configured to: acquiring the current historical center distance between the lens barrel center of the first lens barrel and the lens barrel center of the second lens barrel; calculating the difference between the center distance and the historical center distance; determining the moving distance and the moving direction of the first image and the second image according to the difference value; adjusting the positions of the first image and the second image according to the determination result; the display control apparatus further includes: and the recording module is used for recording the central distance as the historical central distance after the adjusting module adjusts the positions of the first image and the second image displayed by the display screen according to the central distance.
Optionally, the optical signal reflector is a gray card.
Therefore, the display device comprises a first lens barrel, a second lens barrel, an optical signal transceiver arranged on the first lens barrel, and an optical signal reflector arranged on the second lens barrel, wherein the optical signal transceiver and the optical signal reflector are arranged oppositely; wherein, the reflected signal is obtained by the optical signal reflector reflecting the detection signal; then calculating the time interval of the optical signal transceiver for sending the detection signal and receiving the reflection signal, and calculating the center distance between the lens cone center of the first lens cone and the lens cone center of the second lens cone according to the time interval; the center of the lens barrel is the optical center of the lens in the lens barrel; finally, the positions of the first image and the second image displayed by the display screen are adjusted according to the center distance, so that the image center of the first image is superposed with the first projection of the lens cone center of the first lens cone on the display screen, and the image center of the second image is superposed with the second projection of the lens cone center of the second lens cone on the display screen, the problem that the image definition in the imaging result of part of users is insufficient in the display equipment provided with the two lens cones is effectively solved, and the image definition in the imaging result of the display equipment is effectively ensured.
Fig. 9 is a schematic structural diagram of a display device according to some embodiments of the present application. As shown in fig. 9, the display apparatus 90 includes a first barrel 91, a second barrel 92, an optical signal transceiver 93 disposed on the first barrel 91, and an optical signal reflector 94 disposed on the second barrel 92, the optical signal transceiver 93 and the optical signal reflector 94 being disposed opposite to each other, and the display apparatus 90 further includes: and a display control device 80, wherein the display control device 80 is coupled with the optical signal transceiver 93. The display control device 80 may be a processor such as a chip, for example.
The arrangement of the first barrel 91, the second barrel 92, the optical signal transceiver 93, and the optical signal reflector 94 can be referred to the corresponding description of the arrangement of the first barrel, the second barrel, the optical signal transceiver, and the optical signal reflector in the above method embodiments, and will not be described again here. The arrangement and operation of each part in the display control device 80 can be referred to the corresponding description in the above embodiments, and are not described herein again.
Fig. 10 is a hardware configuration diagram of an electronic device according to another embodiment.
As shown in fig. 10, the electronic device 1000 comprises a processor 1010 and a memory 1020, the memory 1020 being adapted to store an executable computer program, the processor 1010 being adapted to perform a method according to any of the above method embodiments, under control of the computer program.
The electronic device 1000 may be a VR device.
The modules of the electronic device 1000 may be implemented by the processor 1010 executing the computer program stored in the memory 1020 in the present embodiment, or may be implemented by other circuit structures, which is not limited herein.
The present application may be a system, method and/or computer program product. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present application.
The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.
Computer program instructions for carrying out operations of the present application may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry can execute computer-readable program instructions to implement aspects of the present application by utilizing state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).
Various aspects of the present application are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, by software, and by a combination of software and hardware are equivalent.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the application is defined by the appended claims.
Claims (11)
1. A display control method of a display device, wherein the display device includes a first barrel, a second barrel, an optical signal transceiver disposed on the first barrel, and an optical signal reflector disposed on the second barrel, the optical signal transceiver and the optical signal reflector being disposed opposite to each other, the method comprising:
controlling the optical signal transceiver to transmit a detection signal and receive a reflection signal; wherein the reflected signal is obtained by the optical signal reflector reflecting the detection signal;
calculating the time interval of the optical signal transceiver for sending the detection signal and receiving the reflection signal;
calculating a center distance between a barrel center of the first barrel and a barrel center of the second barrel according to the time interval; the lens barrel center is the optical center of a lens in the lens barrel;
and adjusting the positions of the first image and the second image displayed by the display screen according to the center distance so as to enable the image center of the first image to be coincided with the first projection of the lens cone center of the first lens cone on the display screen and the image center of the second image to be coincided with the second projection of the lens cone center of the second lens cone on the display screen.
2. The method of claim 1, wherein said adjusting the position of the display screen for displaying the first image and the second image according to the center distance comprises:
determining a first position of a lens barrel center of the first lens barrel and a second position of a lens barrel center of the second lens barrel according to the center distance;
obtaining a first projection position of the first position on the display screen and a second projection position of the second position on the display screen;
and adjusting the image center of the first image to the first projection position and the image center of the second image to the second projection position in the display screen.
3. The method of claim 1, wherein said adjusting the position of the display screen for displaying the first image and the second image according to the center distance comprises:
acquiring a current historical center distance between the lens barrel center of the first lens barrel and the lens barrel center of the second lens barrel;
calculating a difference between the center distance and the historical center distance;
determining the moving distance and the moving direction of the first image and the second image according to the difference value;
adjusting the positions of the first image and the second image according to the determination result;
after the adjusting the positions of the first image and the second image displayed by the display screen according to the center distance, the method further comprises: recording the center distance as the historical center distance.
4. The method of any of claims 1-3, wherein the optical signal reflector is a gray card.
5. A display control apparatus of a display device, the display device including a first barrel, a second barrel, an optical signal transceiver disposed on the first barrel, and an optical signal reflector disposed on the second barrel, the optical signal transceiver and the optical signal reflector being disposed opposite to each other, the apparatus comprising:
the control module is used for controlling the optical signal transceiver to send a detection signal and receive a reflection signal; wherein the reflected signal is obtained by the optical signal reflector reflecting the detection signal;
the calculation module is used for calculating the time interval of the optical signal transceiver for sending the detection signal and receiving the reflection signal; a processing module, configured to calculate a center distance between a barrel center of the first barrel and a barrel center of the second barrel according to the time interval; the lens barrel center is the optical center of a lens in the lens barrel;
and the adjusting module is used for adjusting the positions of the first image and the second image displayed by the display screen according to the central distance so as to enable the image center of the first image to coincide with the first projection of the lens cone center of the first lens cone on the display screen and enable the image center of the second image to coincide with the second projection of the lens cone center of the second lens cone on the display screen.
6. The apparatus of claim 5, wherein the adjustment module is configured to:
determining a first position of a lens barrel center of the first lens barrel and a second position of a lens barrel center of the second lens barrel according to the center distance;
obtaining a first projection position of the first position on the display screen and a second projection position of the second position on the display screen;
and adjusting the image center of the first image to the first projection position and the image center of the second image to the second projection position in the display screen.
7. The apparatus of claim 5, wherein the adjustment module is configured to:
acquiring a current historical center distance between the lens barrel center of the first lens barrel and the lens barrel center of the second lens barrel;
calculating a difference between the center distance and the historical center distance;
determining the moving distance and the moving direction of the first image and the second image according to the difference value;
adjusting the positions of the first image and the second image according to the determination result;
the device further comprises: and the recording module is used for recording the center distance as the historical center distance after the adjusting module adjusts the positions of the first image and the second image displayed by the display screen according to the center distance.
8. The apparatus of any of claims 5-7, wherein the optical signal reflector is a gray card.
9. A display device, comprising: the display device comprises a first lens barrel, a second lens barrel, an optical signal transceiver arranged on the first lens barrel, and an optical signal reflector arranged on the second lens barrel, wherein the optical signal transceiver and the optical signal reflector are oppositely arranged, and the display device further comprises: the display control device of any one of claims 5-8, coupled with the optical signal transceiver.
10. An electronic device comprising a memory and a processor, the memory for storing a computer program; the processor is adapted to execute the computer program to implement the method according to any of claims 1-4.
11. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the method according to any one of claims 1-4.
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| CN202111613321.5A CN114442321B (en) | 2021-12-27 | Display control method and device of display equipment, display equipment and electronic equipment |
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| CN202111613321.5A CN114442321B (en) | 2021-12-27 | Display control method and device of display equipment, display equipment and electronic equipment |
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