CN217770232U - System for adapting refresh rate of LED display device to shutter angle of camera device - Google Patents
System for adapting refresh rate of LED display device to shutter angle of camera device Download PDFInfo
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- CN217770232U CN217770232U CN202220887870.5U CN202220887870U CN217770232U CN 217770232 U CN217770232 U CN 217770232U CN 202220887870 U CN202220887870 U CN 202220887870U CN 217770232 U CN217770232 U CN 217770232U
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Abstract
The utility model relates to a LED shows technical field, discloses a system of LED display device refresh rate adaptation camera equipment shutter angle. The system comprises: the device comprises a synchronous signal generating device, a camera device, a video source terminal, a control unit, a phase delay device and an LED display device, wherein the synchronous signal generating device is respectively connected with the camera device and the control unit and is used for providing a vertical synchronous signal to the camera device and the control unit; the video source terminal is connected with the control unit and used for providing video images to the control unit; the camera equipment is respectively connected with the control unit and the LED display equipment and is used for shooting images displayed on the LED display equipment; the phase delay device is respectively connected with the control unit and the LED display device, and is used for adjusting the offset between the video data and the vertical synchronous signal, so that the dynamic blurring of imaging can be avoided, and the imaging quality is improved.
Description
Technical Field
The utility model relates to a LED shows technical field, especially relates to a system of LED display device refresh rate adaptation camera equipment shutter angle.
Background
With the continuous development of science and technology, the application of the LED display device is more and more extensive.
In the conventional art, when a camera is photographing an LED display device, if there is a time difference between the lighting time of the LED display device and the shutter open time, the shutter open time cannot completely cover the lighting time of the LED display device, which may cause various visual problems such as dark lines of imaging, etc.
The reason why the dark line is formed is that the LED driving chip used in most LED display devices breaks up the image to be displayed in several parts per frame, and each image is referred to as a sub-frame. When all sub-frames are superimposed together within a frame time, a full-gray image of one frame is formed. Therefore, if the light emitting time of the LED display device is not matched with the shutter opening time, the shutter time cannot cover the light emission of the LED display device, so that a part of sub-frames are outside the shutter opening time, and a part of gray scale is lost, and a part of the image of the LED display captured by the camera is darker, resulting in poor imaging quality.
Therefore, the photographer typically adjusts the shutter angle of the camera to 360 °, i.e., the shutter is fully open. At this time, the exposure time of the camera may completely cover the time when the LED display device displays each frame of picture. If the shutter of the camera is fully opened, i.e. the shutter angle is 360 deg., all sub-frames are fully contained in the shutter open time and the grey scale is not lost. However, the dynamic blurring of the image is much caused by this, and the picture is thus distorted.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing, it is necessary to provide a system for adapting the refresh rate of an LED display device to the shutter angle of an image capturing device, which can avoid the dynamic blur of the image and improve the image quality.
In a first aspect, embodiments of the present invention provide a system for adapting a refresh rate of an LED display device to a shutter angle of an image capture device, the system comprising a synchronization signal generating device, an image capture device, a video source terminal, a control unit, a phase delay device, and an LED display device,
the synchronous signal generating device is respectively connected with the image pickup device and the control unit and is used for providing a vertical synchronous signal to the image pickup device and the control unit;
the video source terminal is connected with the control unit and is used for providing video images to the control unit;
the camera shooting equipment is respectively connected with the control unit and the LED display equipment and is used for shooting images displayed on the LED display equipment;
the phase delay device is respectively connected with the control unit and the LED display device, and is used for adjusting the offset between the video data and the vertical synchronization signal.
In some embodiments, the camera device and the LED display device are connected by a serial digital interface.
In some embodiments, the imaging device is a video camera.
In some embodiments, the phase delay device is a phase delay.
In some embodiments, the synchronization signal generation device is a synchronization signal generator.
In some embodiments, the LED display device is an LED display screen.
Compared with the prior art, the beneficial effects of the utility model are that: be different from the condition of prior art, the embodiment of the utility model provides a system of LED display device refresh rate adaptation camera equipment shutter angle, introduce LED display device refresh rate adaptation camera equipment shutter angle system with synchronizing signal generating equipment and phase delay equipment, through being connected synchronizing signal generating equipment with camera equipment and control unit respectively, connect video source terminal and control unit, be connected camera equipment with control unit and LED display device respectively, be connected phase delay equipment with control unit and LED display device respectively, synchronizing signal generating equipment can unify camera equipment and control unit's vertical synchronization signal, be convenient for control LED display device image refresh's initial time, phase delay equipment can control the offset between LED display device image refresh's initial time and the vertical synchronization signal, provide certain redundant time, can avoid the dynamic fuzzy of formation of image from this, improve the imaging quality.
Drawings
One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.
Fig. 1 is a system for adapting the refresh rate of the LED display device to the shutter angle of the camera device according to the embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and embodiments. It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, an embodiment of the present invention provides a system for adapting the refresh rate of an LED display device to the shutter angle of an image capturing device, which includes a synchronization signal generating device 10, a video source terminal 20, an image capturing device 30, a control unit 40, a phase delay device 50, and an LED display device 60. Wherein, the synchronization signal generating device 10 is respectively connected with the camera device 20 and the control unit 40, the video source terminal 20 is connected with the control unit 40, the camera device 30 is respectively connected with the control unit 40 and the LED display device 60, and the phase delay device 50 is respectively connected with the control unit 40 and the LED display device 60.
The synchronization signal generating device 10 can be any device with the synchronization signal function, in the embodiment of the present invention, the synchronization signal generating device 10 is a synchronization signal generator. The synchronization signal generation apparatus 10 is for supplying a vertical synchronization signal to the image pickup apparatus 30 and the control unit 40. Specifically, the synchronization signal generation device 10 may unify the vertical synchronization signals of the image pickup device 30 and the control unit 40, so as to control the start timing of the image refresh of the LED display device.
The video source terminal 20 may be any electronic terminal for providing video images to the control unit 40.
The camera device 30 may be any device with a camera function, and in the embodiment of the present invention, the camera device 30 is a video camera. The image pickup device 30 is used to pick up an image on the LED display device 60 and provide shutter information to the control unit 40.
The control unit 40 is an LED display controller, and the LED display controller is configured to convert a video image provided by the video source terminal 20 into video data that can be recognized by the LED display device 60 in a manner of adapting to a shutter angle of the camera device, and control the LED display device 60 to display the video image at a certain refresh rate.
The phase delay device 50 can be any device with an adjusting function, in the embodiment of the present invention, the phase delay device 50 is a phase delayer. The phase delay device 50 is used to adjust the offset between the video data and the vertical synchronization signal. Specifically, the phase delay device 50 can control the offset between the start time of the image refresh of the LED display device 60 and the vertical synchronization signal, and provide a certain redundant time.
The LED display device 60 may be an LED display screen, and the LED display device 60 is used for displaying video images.
In some embodiments, the image pickup apparatus 30 and the control unit 40 are connected through a serial digital interface, i.e., an SD I interface. Through SDI interface communication, the control unit 40 acquires shutter information of the camera device 30, the control unit 40 does not need to set the shutter information, and the refresh rate of the LED display device is automatically adapted as long as a user sets the shutter information in the camera device 30; and the shutter of the image pickup apparatus 30 does not need to be fully opened, so that the motion blur of the imaging is controlled and the picture is not distorted.
It should be noted that the preferred embodiments of the present invention are described in the specification and the drawings, but the present invention can be realized in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not provided as additional limitations to the present invention, and are provided for the purpose of making the understanding of the disclosure of the present invention more thorough and complete. Moreover, the above features are combined with each other to form various embodiments not listed above, and all of them are considered as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A system for adapting the refresh rate of an LED display device to the shutter angle of an image pickup device is characterized by comprising a synchronization signal generation device, the image pickup device, a video source terminal, a control unit, a phase delay device and the LED display device,
the synchronous signal generating device is respectively connected with the image pickup device and the control unit and is used for providing a vertical synchronous signal to the image pickup device and the control unit;
the video source terminal is connected with the control unit and is used for providing video images to the control unit;
the camera shooting equipment is respectively connected with the control unit and the LED display equipment and is used for shooting images displayed on the LED display equipment;
the phase delay device is respectively connected with the control unit and the LED display device, and is used for adjusting the offset between the video data and the vertical synchronization signal.
2. The system of claim 1, wherein the camera device and the LED display device are connected by a serial digital interface.
3. The system of claim 2, wherein the camera device is a video camera.
4. The system of claim 3, wherein the phase delay device is a phase delay.
5. The system of claim 4, wherein the synchronization signal generating device is a synchronization signal generator.
6. The system of claim 5, wherein the LED display device is an LED display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220887870.5U CN217770232U (en) | 2022-04-16 | 2022-04-16 | System for adapting refresh rate of LED display device to shutter angle of camera device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220887870.5U CN217770232U (en) | 2022-04-16 | 2022-04-16 | System for adapting refresh rate of LED display device to shutter angle of camera device |
Publications (1)
| Publication Number | Publication Date |
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| CN217770232U true CN217770232U (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220887870.5U Active CN217770232U (en) | 2022-04-16 | 2022-04-16 | System for adapting refresh rate of LED display device to shutter angle of camera device |
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| CN (1) | CN217770232U (en) |
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2022
- 2022-04-16 CN CN202220887870.5U patent/CN217770232U/en active Active
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