CN214201950U - Display device - Google Patents
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- CN214201950U CN214201950U CN202120208240.6U CN202120208240U CN214201950U CN 214201950 U CN214201950 U CN 214201950U CN 202120208240 U CN202120208240 U CN 202120208240U CN 214201950 U CN214201950 U CN 214201950U
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Abstract
The utility model discloses a display device. Wherein, the device includes: a plurality of pixel units for displaying image data; the plurality of pedestals correspond to the plurality of pixel units one by one, and are used for providing magnetic levitation force for the plurality of pixel units, wherein the plurality of pedestals are connected in series; and the control system is connected with the bases and used for controlling the bases to provide the magnetic levitation force for the pixel units and transmitting the image data to the pixel units through the bases. The utility model provides a display device among the correlation technique show the relatively poor technical problem of effect of image.
Description
Technical Field
The utility model relates to an image display field particularly, relates to a display device.
Background
The existing display device is formed by mutually supporting and splicing display units or modules, needs to be made into a structural support or attached to an object to be unfolded, and displays a plane image. Although the existing imaging technology can present a 3D stereoscopic effect on a flat display screen, it is troublesome for a user to wear a pair of glasses when watching, and the user is not suitable for watching for a long time.
In view of the above problems, no effective solution has been proposed.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a display device to solve the relatively poor technical problem of effect of display device display image among the correlation technique at least.
According to an aspect of the embodiments of the present invention, there is provided a display device, including: a plurality of pixel units for displaying image data; the plurality of bases correspond to the plurality of pixel units one by one and are used for providing magnetic levitation force for the plurality of pixel units, wherein the plurality of bases are connected in series; and the control system is connected with the bases and used for controlling the bases to provide magnetic levitation force for the pixel units and transmitting image data to the pixel units through the bases.
Optionally, each base comprises: the magnet is provided with a magnetic coil and used for providing magnetic suspension force for the pixel unit; the electromagnetic conversion module is connected with the magnetic coil and used for controlling the magnet to convert the electric energy into magnetic levitation force; the first communication module is used for transmitting the image data to the pixel unit.
Optionally, each pixel cell comprises: the second communication module is communicated with the first communication module, arranged inside the pixel unit and used for receiving the image data; and the at least one light emitting diode is arranged on the side surface and/or the top of the pixel unit, is connected with the second communication module and is used for displaying image data.
Optionally, each pixel unit further comprises: the driving chip is connected with the second communication module and the at least one light-emitting diode and is used for driving the at least one light-emitting diode to display image data; and the storage chip is connected with the second communication module and the driving chip and is used for storing the image data.
Optionally, the magnet is encapsulated in a structural body and the first communication module is integrated in a structural frame inside the magnet.
Alternatively, the second communication module, the driving chip, and the memory chip are integrated on the circuit board inside and at the bottom of each pixel unit.
Optionally, the manner in which the at least one light emitting diode is disposed on the pixel unit includes at least one of: welding, sticking and die bonding.
Optionally, each pixel cell comprises: the height sensor is used for detecting the current suspension height of the pixel unit; each base includes: the height positioning module is connected with the height sensor and used for acquiring the current suspension height of the pixel unit; and the control system is connected with the height positioning module and is used for adjusting the magnetic levitation force provided by the plurality of bases for the plurality of pixel units based on the current levitation height and the preset levitation height of each pixel unit.
Optionally, the preset floating heights of the plurality of pixel units are completely different or partially the same.
Optionally, each pixel cell comprises: the rechargeable battery is arranged inside each pixel unit and used for supplying power to each pixel unit; and a first electrode embedded at the bottom of each pixel unit and contacting each base for charging the rechargeable battery.
Optionally, each base further comprises: the bearing part is connected with two ends of the magnet and is used for bearing each pixel unit; a second electrode disposed on top of the carrier member and contacting each pixel unit; and the charging chip is arranged at the bottom of the bearing part, is connected with the first electrode and is used for charging each pixel unit through the second electrode.
Optionally, the apparatus further comprises: and the power supply system is connected with the plurality of bases and used for supplying power to the plurality of bases.
Optionally, each pixel unit is of a cubic structure or a spherical structure.
Optionally, the plurality of pedestals are arranged in a matrix.
The embodiment of the utility model provides an in, control a plurality of bases through control system and provide magnetic levitation power for a plurality of pixel units, and transmit image data to a plurality of pixel units through a plurality of bases, realized that the assistance that does not need any bearing structure just can show the image, the flexibility of showing the image has been improved greatly, in addition, height through magnetic levitation power control pixel unit, can demonstrate the better three-dimensional image of visual effect, do not need artificial wearing glasses to watch, thereby the relatively poor technical problem of effect of display device display image among the correlation technique has been solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic view of a base according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a pixel cell according to an embodiment of the present invention;
fig. 4 is a top view of a plurality of pedestals in a horizontal plane in accordance with an embodiment of the present invention;
fig. 5 is a front view of a pixel cell suspended in the air according to an embodiment of the present invention;
fig. 6 is a side view of a pixel cell in air suspension according to an embodiment of the present invention;
fig. 7 is a schematic diagram of charging a pixel unit in contact with a base according to an embodiment of the present invention;
fig. 8 is a schematic diagram of another display device according to an embodiment of the present invention;
fig. 9 is a schematic diagram of another pixel cell according to an embodiment of the present invention;
fig. 10 is an operation diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such system, article, or apparatus.
According to the embodiment of the present invention, a display device is provided, fig. 1 is a schematic diagram of a display device according to the embodiment of the present invention, as shown in fig. 1, the device includes: a plurality of pixel cells 12, a plurality of pedestals 14, and a control system 16.
The pixel units are used for displaying image data.
In the above steps, each pixel unit can display image data, and a plurality of pixel units can display image data to form a complete image, wherein the height of each pixel unit can be adjusted, and the displayed image can be more stereoscopic by adjusting the height of each pixel unit.
The image data in the above steps may be the brightness of the image, the image brightness of each pixel unit may be different, and a complete image may be formed according to the brightness difference between each pixel unit; the image data may also be the gray scale of the image, the gray scale of each pixel unit may be different, and a finished image may be composed according to the gray scale difference between each pixel unit.
The multiple bases correspond to the multiple pixel units one by one, and are used for providing magnetic levitation force for the multiple pixel units, wherein the multiple bases are connected in series.
Each base in the above steps has a corresponding pixel unit, which is mainly used for providing magnetic levitation force for the pixel unit, so that the pixel unit can be levitated in the air, and the display mode of the pixel unit is more flexible. In addition, the multiple bases can be arranged in different modes, so that the corresponding pixel units can achieve different display effects. For example, the plurality of bases may be arranged in a matrix form, the plurality of bases may be arranged in a triangular form, or the plurality of bases may be arranged in various forms such as a trapezoidal form, thereby providing various display schemes for the pixel unit.
The control system is connected with the bases and used for controlling the bases to provide magnetic levitation force for the pixel units and transmitting image data to the pixel units through the bases.
The control system in the above steps is connected in series with a plurality of pedestals, and the control system can control each pedestal to provide the magnetic levitation force for each pixel unit according to the identification information of each pedestal, and transmit the image data to each pixel unit through each pedestal.
In an alternative embodiment, the control system may be connected to the display device by bluetooth, wireless lan, short-range wireless communication, and the like, where the control system may be a terminal device, such as: mobile phone, computer, tablet, remote control, etc.
In an alternative embodiment, the control system may be an image data processing control system, and may be connected to each of the pedestals by a flex cable.
The embodiment of the utility model provides an in, control a plurality of bases through control system and provide magnetic levitation power for a plurality of pixel units, and transmit image data to a plurality of pixel units through a plurality of bases, realized that the assistance that does not need any bearing structure just can show the image, the flexibility of showing the image has been improved greatly, in addition, height through magnetic levitation power control pixel unit, can demonstrate the better three-dimensional image of visual effect, do not need artificial wearing glasses to watch, thereby the relatively poor technical problem of effect of display device display image among the correlation technique has been solved.
Alternatively, as shown in fig. 2, each base 14 includes: a magnet 140, a wound magnetic coil 142, an electromagnetic conversion module 144, and a first communication module 146.
Wherein each base includes: the magnet is provided with a magnetic coil and used for providing magnetic suspension force for the pixel unit; the electromagnetic conversion module is connected with the magnetic coil and used for controlling the magnet to convert the electric energy into magnetic levitation force; the first communication module is used for transmitting the image data to the pixel unit.
The magnet in the above steps can be a U-shaped magnet, and the magnet with a U-shaped structure can generate a relatively stable magnetic field, so that the magnetic suspension force of the magnet as a pixel unit is stable.
The electromagnetic conversion module in the above steps is used for controlling the current of the magnetic coil, and the magnetic field is controlled by controlling the current in the magnetic coil, so that the magnet is controlled to provide corresponding magnetic levitation force for the pixel unit, and the pixel unit can reach the corresponding height.
The first communication module in the above steps may be a communication module such as bluetooth, wireless lan, short-range wireless communication, etc., and the image data transmitted to the base by the control system may be transmitted to the pixel unit through the first communication module, so that the pixel unit may display the image data.
Alternatively, as shown in fig. 3, each pixel cell 12 includes: a second communication module 122, at least one light emitting diode 124.
The second communication module is communicated with the first communication module, arranged inside the pixel unit and used for receiving image data; and the at least one light emitting diode is arranged on the side surface and/or the top of the pixel unit, is connected with the second communication module and is used for displaying image data.
The Light emitting diode in the above step may be a Light emitting semiconductor electronic element (LED), and may be disposed at the side and top of the pixel unit, so that a user may view an image displayed by the pixel unit from multiple directions, thereby achieving a three-dimensional stereoscopic effect of the displayed image.
The second communication module in the above steps may be a communication module such as bluetooth, wireless lan, short-range wireless communication, and the like.
In an alternative embodiment, the second communication module directly displays the image data on the at least one light emitting diode when receiving the image data transmitted by the first communication module, so as to improve the display efficiency of the image data.
Optionally, as shown in fig. 3, each pixel unit 12 further includes: a driver chip 126 and a memory chip 128.
The driving chip is connected with the second communication module and the at least one light emitting diode and is used for driving the at least one light emitting diode to display image data; and the storage chip is connected with the second communication module and the driving chip and is used for storing the image data.
The driving chip in the above steps may be an LED driving chip, which is mainly used for driving the LED to emit light and driving the LED to operate in an optimal voltage or current state.
The memory chip in the above steps can directly store the image data when receiving the image data, and delete the stored image data at regular time.
In an alternative embodiment, the memory chip may store image data that needs to be played over a period of time. When the storage time of the image data exceeds the set storage time, the image data may be deleted. In addition, after the memory of the memory chip is full, the image data stored at the earliest time can be deleted, so that the memory occupation in the memory chip is reduced.
Alternatively, as shown in fig. 2, each base 14 includes: structure 148, structure frame 172.
The magnet is packaged in the structural body, and the first communication module is integrated in a structural frame inside the magnet.
Specifically, the magnet and the magnetic coil can be physically protected by encapsulating the magnet in a structural frame; through with first communication module integration in the inside structure frame of magnet, can reduce the volume of base, make the shared space of display device littleer and remove more easily for the user can arrange the base in a flexible way.
Alternatively, as shown in fig. 3, each pixel cell 12 includes: a circuit board 150.
The second communication module, the driving chip and the memory chip are integrated on the circuit board inside and at the bottom of each pixel unit.
In an alternative embodiment, the integration of the second communication module, the driving chip and the memory chip on one circuit board can reduce the volume and occupied space of the pixel unit and reduce the circuit complexity inside the pixel unit. And, through integrating above-mentioned part on a circuit board, can also reduce the weight of the pixel cell, because, the base can provide the little magnetic levitation force and just can make the pixel cell reach preset height.
Optionally, the manner in which the at least one diode is disposed on the pixel unit includes at least one of: welding, sticking and die bonding.
In an alternative embodiment, the diode can be made more robust on the pixel unit by means of soldering; the diode can be conveniently replaced when the diode breaks down in a sticking mode; the conducting effect of the diode can be better through die bonding.
Optionally, each pixel cell 12 comprises: a height sensor 152.
The height sensor is used for detecting the current floating height of the pixel unit.
The current floating height in the above step may be the current floating height of the pixel unit from the plane where the base is located, or the current floating height of the pixel unit from the base.
In an alternative embodiment, the height sensor may begin monitoring the current fly height of the pixel cell in real time as the pixel cell is separated from the base.
In another alternative embodiment, the height sensor may start to monitor the current flying height of the pixel cell when the display device is started.
Optionally, each base 14 comprises: a height positioning module 174.
The height positioning module is connected with the height sensor and used for acquiring the current suspension height of the pixel unit; and the control system is connected with the height positioning module and is used for adjusting the magnetic levitation force provided by the plurality of bases for the plurality of pixel units based on the current levitation height and the preset levitation height of each pixel unit.
In an alternative embodiment, the height positioning module may be in communication connection with the height sensor, specifically, in a bluetooth connection, a wireless local area network connection, or a short-distance wireless communication connection.
In another alternative embodiment, the control system may send the preset levitation height to the plurality of bases, so that the plurality of bases may control the magnet to provide the corresponding magnetic levitation force according to the preset levitation height, so that the pixel unit may reach the preset height, and the image data displayed by the pixel unit may achieve the three-dimensional effect.
In yet another alternative embodiment, the height positioning module may receive the current floating height of the pixel unit detected by the height sensor in real time, and then send the current floating height to the control system, the control system determines a height that needs to be adjusted according to the current floating height and a preset floating height, and controls the plurality of bases to provide magnetic floating force for the pixel unit according to the height that needs to be adjusted, so that the floating position of the pixel unit is more accurate.
Optionally, the preset floating heights of the plurality of pixel units are completely different or partially the same.
In an optional embodiment, in order to enable the image data of the plurality of pixel units to have a more stereoscopic visual effect, the preset floating heights of the plurality of pixel units may be set to be completely different or partially the same, so that the image data displayed by the pixel units is more stereoscopic, and the viewing experience of a user is improved.
Optionally, the plurality of pedestals are arranged in a matrix.
In an alternative embodiment, the number and arrangement of the pedestals may be set according to the field environment of the display device and the image data to be displayed.
The plurality of bases are arranged in a matrix, so that the displayed image can be more three-dimensional.
Fig. 4 is a top view of the plurality of bases on a horizontal plane, wherein the plurality of bases are arranged in a matrix on the horizontal plane.
Fig. 5 is a front view showing the pixel unit suspended in the air, and fig. 6 is a side view showing the pixel unit suspended in the air. The pixel units corresponding to the first row of bases are suspended on a first height, the pixel units corresponding to the second row of bases are suspended on a second height, the pixel units corresponding to the third row of bases are suspended on a third height, the pixel units corresponding to the fourth row of bases are suspended on a fourth height, the first height is smaller than the second height, the second height is smaller than the third height, and the third height is smaller than the fourth height, so that the three-dimensional effect of the image data displayed by the pixel units is best.
Optionally, as shown in fig. 3, each pixel unit 12 further includes: a rechargeable battery 154, a first electrode 156.
The rechargeable battery is arranged inside each pixel unit and used for supplying power to each pixel unit; a first electrode is embedded in the bottom of each pixel cell and is in contact with each pedestal for charging the rechargeable battery.
The rechargeable battery in the above steps can supply power to the pixel unit, thereby ensuring that the pixel unit can normally display image data.
In an alternative embodiment, the base may charge the rechargeable battery when the pixel cell is in contact with the base, so as to keep the rechargeable battery sufficiently charged at all times.
Fig. 7 is a schematic diagram of contact charging of the pixel unit and the substrate, wherein 70 denotes an electrode contact charging site.
Optionally, as shown in fig. 2, each base 14 further includes: carrier 176, second electrode 178, charging chip 180.
The bearing part is connected with two ends of the magnet and is used for bearing each pixel unit; the second electrode is arranged on the top of the bearing part and is in contact with each pixel unit; the charging chip is arranged at the bottom of the bearing part, is connected with the first motor and is used for charging each pixel unit through the second electrode.
In an alternative embodiment, the second electrode may be disposed in the base at a position corresponding to the first electrode in the pixel unit, so that the base can charge the rechargeable battery with higher efficiency.
In another optional embodiment, the charging chip may monitor the electric quantity of the rechargeable battery, when the electric quantity of the rechargeable battery is smaller than the first preset electric quantity, the charging chip may send the current electric quantity of the rechargeable battery to the first communication module of the base through the second communication module, and feed back the current electric quantity to the control system, and the control system controls the base to slowly reduce the magnetic levitation force according to the current electric quantity of the rechargeable battery, so that the pixel unit may stably fall on the base, and the rechargeable battery is charged through the base.
Further, when the electric quantity of the rechargeable battery is greater than the second preset electric quantity, it indicates that the rechargeable battery is completely charged, and at this time, the charging chip can control not to charge the rechargeable battery any more.
Optionally, as shown in fig. 8, the apparatus further includes: a power supply system 18.
The power supply system is connected with the bases and used for supplying power to the bases.
As shown in fig. 4, the control system 16 is connected to the flat cable 20, and the power supply system 18 is connected to the power cord 22.
In an alternative embodiment, the power supply system is connected to each base through a power cord, thereby achieving the effect of supplying power to each base.
Optionally, each pixel unit is of a cubic structure or a spherical structure.
As shown in fig. 9, each pixel cell may also be a spherical structure. Besides the bottom of the pixel unit, other visible surfaces can be provided with light emitting diodes, so that a user can watch displayed image data from multiple angles, and a good visual effect is achieved.
Optionally, each base 14 further comprises: a synchronization data processing module 182.
The synchronous data processing module can receive the image data and the preset suspension height sent by the control system, controls the first communication module to send the image data to the pixel unit, and sends the preset suspension height to the electromagnetic conversion module, so that the electromagnetic conversion module controls the magnet to provide corresponding magnetic suspension force according to the preset suspension height.
As shown in fig. 10, the maglev LED display device is transmitted from the power control system to the charging chip and the electrode of each cascaded maglev pixel unit base through the power line, and the electrode is connected to the electrode of the maglev mobile pixel unit, so as to charge the charging battery chip to provide electric energy; transmitting the image data and the height to be suspended of the pixel units to a synchronous data processing chip of each magnetic suspension mobile pixel unit base through an image data transmission flat cable; the image data are transmitted to the magnetic suspension mobile pixel unit through the Bluetooth transceiving module, the height data provided by the height sensor of the magnetic suspension mobile pixel unit and the height positioning module of the base can be transmitted to the image data processing control system through the image data transmission flat cable, the image data processing control system performs data analysis according to the height data to determine the magnetic suspension force required to be provided and provides digitalized information to the electromagnetic conversion module of the base, so that the electromagnetic conversion module provides the magnetic suspension force for the magnetic suspension mobile pixel unit; in addition, the height positioning module can transmit the updated height data to the image data processing control system, so that the image data processing control system can correct the magnetic levitation force provided by the base.
The electromagnetic conversion module and the height sensor convert electric energy into magnetic force, the magnetic suspension mobile pixel unit can be controlled to reach corresponding height according to a data command set by a display image, and corresponding color brightness can be displayed, so that a three-dimensional pixel composition is realized, a user can watch a three-dimensional image from multiple angles, and the viewing experience of the user is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (14)
1. A display device, comprising:
a plurality of pixel units for displaying image data;
the plurality of pedestals correspond to the plurality of pixel units one by one, and are used for providing magnetic levitation force for the plurality of pixel units, wherein the plurality of pedestals are connected in series;
and the control system is connected with the bases and used for controlling the bases to provide the magnetic levitation force for the pixel units and transmitting the image data to the pixel units through the bases.
2. The apparatus of claim 1, wherein each base comprises:
the magnet is provided with a magnetic coil and used for providing the magnetic levitation force for the pixel unit;
the electromagnetic conversion module is connected with the magnetic coil and used for controlling the magnet to convert electric energy into the magnetic levitation force;
a first communication module for transmitting the image data to the pixel unit.
3. The apparatus of claim 2, wherein each pixel cell comprises:
the second communication module is communicated with the first communication module, arranged inside the pixel unit and used for receiving the image data;
and the at least one light-emitting diode is arranged on the side surface and/or the top of the pixel unit, is connected with the second communication module and is used for displaying the image data.
4. The apparatus of claim 3, wherein each pixel cell further comprises:
the driving chip is connected with the second communication module and the at least one light emitting diode and used for driving the at least one light emitting diode to display the image data;
and the storage chip is connected with the second communication module and the driving chip and is used for storing the image data.
5. The apparatus of claim 2, wherein the magnet is encapsulated in a structural body and the first communication module is integrated into a structural frame inside the magnet.
6. The apparatus of claim 4, wherein the second communication module, the driving chip and the memory chip are integrated on a circuit board inside and at the bottom of each pixel unit.
7. The apparatus of claim 4, wherein the at least one light emitting diode is disposed on the pixel cell in a manner that includes at least one of: welding, sticking and die bonding.
8. The apparatus of claim 1,
each pixel unit includes: a height sensor for detecting a current flying height of the pixel unit;
each base includes: the height positioning module is connected with the height sensor and used for acquiring the current suspension height of the pixel unit;
the control system is connected with the height positioning module and used for adjusting the magnetic levitation force provided by the plurality of bases for the plurality of pixel units based on the current levitation height and the preset levitation height of each pixel unit.
9. The apparatus of claim 8, wherein the preset flying heights of the plurality of pixel units are completely different or partially the same.
10. The apparatus of claim 1, wherein each pixel cell comprises:
the rechargeable battery is arranged inside each pixel unit and used for supplying power to each pixel unit;
a first electrode embedded in the bottom of each pixel unit and contacting each base for charging the rechargeable battery.
11. The apparatus of claim 10, wherein each base further comprises:
the bearing part is connected with two ends of the magnet and is used for bearing each pixel unit;
a second electrode disposed on top of the carrier member and contacting each of the pixel units;
and the charging chip is arranged at the bottom of the bearing part, is connected with the first electrode and is used for charging each pixel unit through the second electrode.
12. The apparatus of claim 11, further comprising:
and the power supply system is connected with the plurality of bases and used for supplying power to the plurality of bases.
13. The apparatus of claim 1, wherein each pixel cell has a cubic structure or a spherical structure.
14. The apparatus of claim 1, wherein the plurality of pedestals are arranged in a matrix.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120208240.6U CN214201950U (en) | 2021-01-25 | 2021-01-25 | Display device |
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| CN202120208240.6U CN214201950U (en) | 2021-01-25 | 2021-01-25 | Display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115278101A (en) * | 2022-07-29 | 2022-11-01 | 维沃移动通信有限公司 | Shooting method and device and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115278101A (en) * | 2022-07-29 | 2022-11-01 | 维沃移动通信有限公司 | Shooting method and device and electronic equipment |
| CN115278101B (en) * | 2022-07-29 | 2024-02-27 | 维沃移动通信有限公司 | Shooting method and device and electronic equipment |
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