CN112344141A - Rotation adjusting method and device of display and computer readable storage medium - Google Patents
Rotation adjusting method and device of display and computer readable storage medium Download PDFInfo
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- CN112344141A CN112344141A CN202011199968.3A CN202011199968A CN112344141A CN 112344141 A CN112344141 A CN 112344141A CN 202011199968 A CN202011199968 A CN 202011199968A CN 112344141 A CN112344141 A CN 112344141A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000013016 damping Methods 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a rotation adjusting method and device of a display and a computer readable storage medium, which are used for acquiring torque information of the display in the rotation direction, wherein the torque information is obtained by a torque sensor arranged on the display; acquiring corresponding rotation information according to the torque information; and controlling the rotation driving device to drive the display to rotate according to the rotation information. The invention improves the user experience.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a rotation adjustment method and apparatus for a display, and a computer-readable storage medium.
Background
With the improvement of science and technology and the improvement of social living standard, the technology of the liquid crystal display device is mature day by day, and the market sales volume is also rapidly increased. Because the liquid crystal display device has a certain visual angle, a user often needs to rotate the liquid crystal display device to achieve a better viewing effect in order to obtain an optimal visual effect when using the liquid crystal display device. However, the existing fixing support cannot freely switch and adjust the horizontal or vertical state of the liquid crystal display device, cannot meet the requirements of users, and reduces the viewing experience.
Disclosure of Invention
The invention mainly aims to provide a rotation adjusting method and device of a display and a computer readable storage medium, aiming at solving the problem of high cost of detecting a photovoltaic string.
In order to achieve the above object, the present invention provides a rotation adjusting method of a display, including the steps of:
acquiring torque information received by the display in a rotating direction, wherein the torque information is obtained through a torque sensor arranged on the display;
acquiring corresponding rotation information according to the torque information;
and controlling the rotation driving device to drive the display to rotate according to the rotation information.
In one embodiment, the step of obtaining the corresponding rotation information according to the torque information comprises:
and acquiring the stress direction of the display according to the torque information, and determining the rotation direction according to the stress direction, wherein the rotation information comprises the rotation direction.
In one embodiment, the step of obtaining the corresponding rotation information according to the torque information comprises:
and acquiring a stress value of the display according to the torque information, and determining a rotation angle according to the stress value, wherein the rotation information further comprises a rotation angle, and when the stress value is zero, determining that the rotation angle is zero.
In one embodiment, the step of determining the rotation angle according to the force value includes:
and when the stress value is larger than a preset threshold value, determining a preset angle as the rotation angle.
In an embodiment, the step of controlling the rotation driving device to drive the display to rotate according to the rotation information includes:
controlling the rotation driving device to drive the display to rotate by the rotation angle according to the rotation direction; when the rotation angle is zero, the rotation driving device is controlled to stop driving the display, and the display stops rotating after damping motion is carried out according to the rotation direction.
In an embodiment, the step of controlling the rotation driving device to drive the display to rotate according to the rotation information includes:
controlling the rotation driving device to drive the display to rotate by the rotation angle according to the rotation direction; when the rotation angle is zero, controlling the rotation driving device to drive the display to immediately stop rotating.
In one embodiment, the step of obtaining the corresponding rotation information according to the torque information comprises:
and acquiring a stress value of the display according to the torque information, and determining rotation time according to the stress value, wherein the rotation information further comprises the rotation time, and when the stress value is zero, the rotation time is determined to be zero.
In an embodiment, the step of controlling the rotation driving device to drive the display to rotate according to the rotation information includes:
controlling the rotation driving device to drive the display to rotate for the rotation time according to the rotation direction; when the rotation time is zero, controlling the rotation driving device to drive the display to continue to rotate according to the rotation direction for a preset time and then stopping rotating.
In order to achieve the above object, the present invention further provides a rotation adjustment device for a display, which includes a memory, a processor, and a rotation adjustment program for a display stored in the memory and executable on the processor, wherein the rotation adjustment program for a display, when executed by the processor, implements the steps of the rotation adjustment method for a display as described above.
To achieve the above object, the present invention also provides a computer-readable storage medium storing a rotation adjustment program of a display, which when executed by a processor, implements the steps of the rotation adjustment method of the display as described above.
The invention provides a rotation adjusting method and device of a display and a computer readable storage medium, which are used for acquiring torque information of the display in the rotation direction, wherein the torque information is obtained by a torque sensor arranged on the display; acquiring corresponding rotation information according to the torque information; and controlling the rotation driving device to drive the display to rotate according to the rotation information. The rotation information of the display is determined according to the torque information detected by the torque sensor, and the rotation driving device is controlled to drive the display to rotate according to the rotation information, so that a user can drive the display to rotate by using small force, and the user experience is improved.
Drawings
Fig. 1 is a schematic hardware configuration diagram of a rotation adjustment device of a display according to an embodiment of the present invention;
FIG. 2 is a schematic flowchart of a rotation adjustment method of a display according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a rotation adjusting apparatus of a display according to the present invention;
FIG. 4 is a detailed flowchart of step S20 of the rotation adjustment method for a display according to the second embodiment of the present invention;
FIG. 5 is a flowchart illustrating a rotation adjustment method of a display according to a third embodiment of the present invention;
FIG. 6 is a flowchart illustrating a rotation adjustment method of a display according to a third embodiment of the present invention;
FIG. 7 is a flowchart illustrating a rotation adjustment method of a display according to a fourth embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: acquiring torque information received by the display in the rotating direction, wherein the torque information is obtained through a torque sensor arranged on the display; acquiring corresponding rotation information according to the torque information; and controlling the rotation driving device to drive the display to rotate according to the rotation information.
The rotation information of the display is determined according to the torque information detected by the torque sensor, and the rotation driving device is controlled to drive the display to rotate according to the rotation information, so that a user can drive the display to rotate by using small force, and the user experience is improved.
As an implementation, the rotation adjusting device of the display can be as shown in fig. 1.
The embodiment of the invention relates to a rotation adjusting device of a display, which comprises: a processor 101, e.g. a CPU, a memory 102, a communication bus 103. Wherein a communication bus 103 is used for enabling the connection communication between these components.
The memory 102 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). As shown in fig. 1, a rotation adjustment program of the display may be included in the memory 102 as a computer-readable storage medium; and the processor 101 may be configured to call up a rotation adjustment program of the display stored in the memory 102 and perform the following operations:
acquiring torque information received by the display in a rotating direction, wherein the torque information is obtained through a torque sensor arranged on the display;
acquiring corresponding rotation information according to the torque information;
and controlling the rotation driving device to drive the display to rotate according to the rotation information.
In one embodiment, the processor 101 may be configured to call a rotation adjustment program of the display stored in the memory 102 and perform the following operations:
and acquiring the stress direction of the display according to the torque information, and determining the rotation direction according to the stress direction, wherein the rotation information comprises the rotation direction.
In one embodiment, the processor 101 may be configured to call a rotation adjustment program of the display stored in the memory 102 and perform the following operations:
and acquiring a stress value of the display according to the torque information, and determining a rotation angle according to the stress value, wherein the rotation information further comprises a rotation angle, and when the stress value is zero, determining that the rotation angle is zero.
In one embodiment, the processor 101 may be configured to call a rotation adjustment program of the display stored in the memory 102 and perform the following operations:
and when the stress value is larger than a preset threshold value, determining a preset angle as the rotation angle.
In one embodiment, the processor 101 may be configured to call a rotation adjustment program of the display stored in the memory 102 and perform the following operations:
controlling the rotation driving device to drive the display to rotate by the rotation angle according to the rotation direction; when the rotation angle is zero, the rotation driving device is controlled to stop driving the display, and the display stops rotating after damping motion is carried out according to the rotation direction.
In one embodiment, the processor 101 may be configured to call a rotation adjustment program of the display stored in the memory 102 and perform the following operations:
controlling the rotation driving device to drive the display to rotate by the rotation angle according to the rotation direction; when the rotation angle is zero, controlling the rotation driving device to drive the display to immediately stop rotating.
In one embodiment, the processor 101 may be configured to call a rotation adjustment program of the display stored in the memory 102 and perform the following operations:
and acquiring a stress value of the display according to the torque information, and determining rotation time according to the stress value, wherein the rotation information further comprises the rotation time, and when the stress value is zero, the rotation time is determined to be zero.
In one embodiment, the processor 101 may be configured to call a rotation adjustment program of the display stored in the memory 102 and perform the following operations:
controlling the rotation driving device to drive the display to rotate for the rotation time according to the rotation direction; when the rotation time is zero, controlling the rotation driving device to drive the display to continue to rotate according to the rotation direction for a preset time and then stopping rotating.
Based on the hardware architecture of the rotation adjusting device of the display, the embodiment of the rotation adjusting method of the display is provided.
Referring to fig. 2, fig. 2 is a first embodiment of a rotation adjustment method of a display according to the present invention, the rotation adjustment method of the display includes the following steps:
step S10, acquiring torque information of the display in the rotating direction, wherein the torque information is obtained by a torque sensor arranged on the display;
specifically, the torque information is the torque that the display is subjected to in the direction of rotation, and the torque information is obtained by a torque sensor mounted on the display. The torque sensor generates torque information based on the force applied when the user applies the force in the rotational direction of the display, and does not generate torque information when the user does not apply the force to the display in the rotational direction of the display.
Step S20, acquiring corresponding rotation information according to the torque information;
specifically, the rotation information may include a rotation direction and a rotation angle in which the display is to be rotated, and for example, the rotation information of the display may be a counterclockwise rotation with a rotation angle of fifty degrees; the rotation information may also be the direction of rotation in which the display is to be rotated and the time of rotation, e.g. counter clockwise, for 5 seconds.
And step S30, controlling the rotation driving device to drive the display to rotate according to the rotation information.
Specifically, the display is connected with the back-hanging device through rotating the driving device, like the rotation adjusting device of the display shown in fig. 3, the rotation driving device can comprise a motor and can also comprise a chain or a gear, the rotation driving device drives the chain or the gear to rotate through the motor, and the gear or the chain further drives the display to rotate, so that a user can drive the display to rotate by using smaller force.
After the rotation information is determined, the rotation driving device is controlled to drive the display to rotate, and illustratively, when the rotation information is that the rotating direction is anticlockwise rotating for 5 seconds, the rotation driving device is controlled to drive the display to rotate for 5 seconds according to the anticlockwise direction. Wherein, rotation drive arrangement can the rotation of helping hand display for the user uses less power alright rotate with driving the display. After the display stops rotating, the display may hover at any angle, for example, the display hovers at 45 degrees to the horizontal.
In the technical scheme of this embodiment, confirm the rotation information of display according to the moment of torsion information that torque sensor detected, control rotation drive arrangement and rotate according to rotating information drive display for the user uses less power just can drive the display and rotate, has promoted user experience.
Referring to fig. 4, fig. 4 is a second embodiment of the rotation adjustment method of the display according to the present invention, and based on the first embodiment, the step S20 includes:
and step S21, acquiring the force direction of the display according to the torque information, and determining the rotation direction according to the force direction, wherein the rotation information comprises the rotation direction.
Step S22, acquiring a stress value of the display according to the torque information, and determining a rotation angle according to the stress value, wherein the rotation information further comprises a rotation angle, and when the stress value is zero, determining that the rotation angle is zero.
Specifically, the stress value of the external force applied to the display can be obtained through torque information calculation, and the rotation angle is the rotation angle of the display to be rotated according to the torque information. The rotation direction of the display is determined according to the force direction, and whether the display rotates anticlockwise or clockwise can be determined. If the force direction is perpendicular to the rotation direction of the display, the display does not rotate. And determining the rotation angle according to the stress value, wherein the larger the stress value is, the larger the rotation angle is. When the stress value is greater than the preset threshold value, the preset angle is determined as the rotation angle, for example, if the user rotates the display with a force greater than the preset threshold value, the display is directly rotated to the preset angle, and the preset angle may be 90 degrees. When the stress value is zero, the rotation angle is also zero.
In the technical scheme of this embodiment, can confirm the rotation direction and the turned angle of display according to the moment of torsion information, rotate drive arrangement and can drive the display and rotate according to atress direction and turned angle.
Referring to fig. 5 and 6, fig. 5 and 6 are third embodiments of the rotation adjustment method of the display according to the present invention, and based on the second embodiment, the step S30 includes:
step S31, controlling the rotation driving device to drive the display to rotate the rotation angle according to the rotation direction; when the rotation angle is zero, the rotation driving device is controlled to stop driving the display, and the display stops rotating after damping motion is carried out according to the rotation direction.
The step S30 further includes:
step S32, controlling the rotation driving device to drive the display to rotate the rotation angle according to the rotation direction; when the rotation angle is zero, controlling the rotation driving device to drive the display to immediately stop rotating.
Specifically, when the rotation angle is zero, the rotation driving device can immediately stop driving the display, so that the display rotates according to the inertia of the display, and the display stops rotating after damping motion. The rotation driving device can also control the rotation driving device to drive the display to stop rotating immediately when the rotation angle is zero.
In the technical scheme of this embodiment, when the rotation angle of the rotation driving device is zero, the display can stop rotating after damping motion, and the display can also stop rotating immediately, so that the display can stop rotating after the rotation angle.
Referring to fig. 7, fig. 7 is a fourth embodiment of the rotation adjustment method of the display according to the present invention, and based on the second embodiment, the step S20 includes:
step S23, acquiring a stress value of the display according to the torque information, and determining rotation time according to the stress value; wherein the rotation information further includes a rotation time, wherein when the stress value is zero, it is determined that the rotation time is zero.
The step S30 includes:
step S33, controlling the rotation driving device to drive the display to rotate for the rotation time according to the rotation direction; when the rotation time is zero, controlling the rotation driving device to drive the display to continue to rotate according to the rotation direction for a preset time and then stopping rotating.
Specifically, the rotation information may be rotation time of the display, and the rotation time is rotation time of the display about to rotate under the driving of the rotation driving device. And determining the rotation time according to the stress value, wherein the rotation time is longer when the stress value is larger. When the stress value is zero, the rotation time is zero. In the process of driving the display to rotate by the rotation driving device, when the rotation time is zero, the rotation driving device can drive the display to stop rotating immediately, and can also drive the display to continue rotating for a preset time according to the rotation direction and then stop rotating.
In the technical scheme of this embodiment, the rotation time of display is confirmed according to the moment of torsion information, rotates drive arrangement and drives the display and rotate in the rotation time, rotates and stops after presetting the time when the rotation time is zero, has realized that the display rotates and stops according to the external force that the display receives.
The present invention also provides a rotation adjustment device of a display, which includes a memory, a processor, and a rotation adjustment program of the display stored in the memory and executable on the processor, wherein the rotation adjustment program of the display, when executed by the processor, implements the steps of the rotation adjustment method of the display according to the above embodiment.
The present invention also provides a computer-readable storage medium storing a rotation adjustment program of a display, which when executed by a processor implements the steps of the rotation adjustment method of the display according to the above embodiment.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a computer-readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, and includes several instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A rotation adjusting method of a display is characterized in that the display is rotatably connected with a back hanging device through a rotation driving device, and the rotation adjusting method of the display comprises the following steps:
acquiring torque information received by the display in a rotating direction, wherein the torque information is obtained through a torque sensor arranged on the display;
acquiring corresponding rotation information according to the torque information;
and controlling the rotation driving device to drive the display to rotate according to the rotation information.
2. The rotation adjustment method of a display according to claim 1, wherein the step of obtaining corresponding rotation information based on the torque information comprises:
and acquiring the stress direction of the display according to the torque information, and determining the rotation direction according to the stress direction, wherein the rotation information comprises the rotation direction.
3. The rotation adjustment method of a display according to claim 2, wherein the step of obtaining corresponding rotation information based on the torque information comprises:
and acquiring a stress value of the display according to the torque information, and determining a rotation angle according to the stress value, wherein the rotation information further comprises a rotation angle, and when the stress value is zero, determining that the rotation angle is zero.
4. The rotation adjustment method of a display according to claim 3, wherein the step of determining a rotation angle according to the force value comprises:
and when the stress value is larger than a preset threshold value, determining a preset angle as the rotation angle.
5. The method for adjusting rotation of a display according to claim 3, wherein the step of controlling the rotation driving device to rotate the display according to the rotation information comprises:
controlling the rotation driving device to drive the display to rotate by the rotation angle according to the rotation direction;
when the rotation angle is zero, the rotation driving device is controlled to stop driving the display, and the display stops rotating after damping motion is carried out according to the rotation direction.
6. The method for adjusting rotation of a display according to claim 3, wherein the step of controlling the rotation driving device to rotate the display according to the rotation information comprises:
controlling the rotation driving device to drive the display to rotate by the rotation angle according to the rotation direction;
when the rotation angle is zero, controlling the rotation driving device to drive the display to immediately stop rotating.
7. The rotation adjustment method of a display according to claim 3, wherein the step of obtaining corresponding rotation information based on the torque information comprises:
and acquiring a stress value of the display according to the torque information, and determining rotation time according to the stress value, wherein the rotation information further comprises the rotation time, and when the stress value is zero, the rotation time is determined to be zero.
8. The method for adjusting rotation of a display according to claim 7, wherein the step of controlling the rotation driving device to rotate the display according to the rotation information comprises:
controlling the rotation driving device to drive the display to rotate for the rotation time according to the rotation direction;
when the rotation time is zero, controlling the rotation driving device to drive the display to continue to rotate according to the rotation direction for a preset time and then stopping rotating.
9. A rotation adjustment apparatus of a display, characterized in that the rotation adjustment apparatus of the display comprises a memory, a processor, and a rotation adjustment program of the display stored in the memory and executable on the processor, the rotation adjustment program of the display, when executed by the processor, implementing the steps of the rotation adjustment method of the display according to any one of claims 1 to 8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a rotation adjustment program of a display, which when executed by a processor, implements the steps of the rotation adjustment method of the display according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011199968.3A CN112344141B (en) | 2020-10-30 | 2020-10-30 | Rotation adjustment method and device for display and computer readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011199968.3A CN112344141B (en) | 2020-10-30 | 2020-10-30 | Rotation adjustment method and device for display and computer readable storage medium |
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| CN112344141A true CN112344141A (en) | 2021-02-09 |
| CN112344141B CN112344141B (en) | 2023-08-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203594936U (en) * | 2013-11-25 | 2014-05-14 | 深圳Tcl新技术有限公司 | Support and display device |
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| WO2018099278A1 (en) * | 2016-11-30 | 2018-06-07 | 比亚迪股份有限公司 | Vehicle display device and vehicle |
| CN209403989U (en) * | 2017-12-19 | 2019-09-20 | 南京工业职业技术学院 | A kind of rotary disk dining table chassis rotation power assisting device |
| CN111578105A (en) * | 2020-06-15 | 2020-08-25 | 深圳市兆威机电股份有限公司 | Display screen state switching device and display screen |
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2020
- 2020-10-30 CN CN202011199968.3A patent/CN112344141B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203594936U (en) * | 2013-11-25 | 2014-05-14 | 深圳Tcl新技术有限公司 | Support and display device |
| CN204210554U (en) * | 2014-10-31 | 2015-03-18 | 朗胜电子科技江苏有限公司 | Electric boosting steering system torque sensor |
| WO2018099278A1 (en) * | 2016-11-30 | 2018-06-07 | 比亚迪股份有限公司 | Vehicle display device and vehicle |
| CN209403989U (en) * | 2017-12-19 | 2019-09-20 | 南京工业职业技术学院 | A kind of rotary disk dining table chassis rotation power assisting device |
| CN111578105A (en) * | 2020-06-15 | 2020-08-25 | 深圳市兆威机电股份有限公司 | Display screen state switching device and display screen |
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| CN112344141B (en) | 2023-08-01 |
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