TWI511078B - Image processing adjustment method and electronic device thereof - Google Patents

Description

Image processing adjustment method and electronic device thereof

The present invention relates to an adjustment system setting value mechanism for image processing, and more particularly to an image processing adjustment method and an electronic device thereof.

Existing display devices, such as displays, televisions, projectors, etc., are mostly transmitted via a wired transmission line (for example, a VGA, DVI, or HDMI transmission line) to a signal device (eg, a notebook or a personal computer). Video signal and audio signal. Recently, the wireless display method is to transmit a video signal or an audio signal to a display device by wireless communication (for example, a Wi-Fi signal) to avoid the distance limitation and connection complexity of the transmission line. Alternatively, a universal serial bus (USB) transmission line with a high penetration rate is used to transmit a video signal or an audio signal to the display device. However, due to the bandwidth limitation of the wireless signal transmission and the bandwidth limitation of the USB connection, the video signal or audio signal to be transmitted must be compressed.

FIG. 1A illustrates the transmission of display material using a wired transmission line. As shown in FIG. 1A, the electronic device 10 includes a central processing unit (CPU) and a video processing unit (GPU). The electronic device 10 uses the transmission line of the VGA/DVI/HDMI standard to transmit the image data to the display device 11 for output. The display device 11 can directly output the video signal or the audio signal without decoding the image data. When the electronic device 10 plays a movie, the GPU is usually utilized (for example, The GPU placed on the display card performs image decoding, and then transmits the image data to the display device 11 for playback through a transmission line of a VGA/DVI/HDMI specification. Current video players use GPUs directly (eg, hardware decode) to reduce CPU load and improve overall movie performance.

FIG. 1B illustrates the transmission of display data by means of a wireless transmission method or a universal serial bus transmission line. The prior art can also transmit image data by USB, wireless transmission (eg, Wi-Fi) or wireless display (Wireless Display) technology. In order to solve the problem of video player compatibility, the operating system preset hardware acceleration (for example, Direct Draw and Direct 3D) is usually turned off. The reason for turning off hardware acceleration is that some video players will force the GPU to use hardware for accelerated decoding. The USB/Wireless Display captures the image data of the frame buffer in the operating system for compression processing. After being compressed and encoded by the CPU, it is transmitted to the display device 11 via USB/Wireless for decoding. Play it again.

Because the operating system only opens the I/O port to VGA/DVI/HDMI, it is not open to USB/Wireless Display. If the hardware is not turned off at this time, the image data cannot be extracted from the image buffer of the operating system. Therefore, the portion of the movie played by the display device 11 will be a black screen. The GPU is used for decoding and subsequent rendering when playing the movie, but the operating system does not open the USB/Wireless Display to access the image buffer, thus causing a black screen. However, consistently turning off the GPU's hardware acceleration will result in increased CPU load and reduced image quality. The overall performance of the player or the overall operating system is slower. In this way, there is a side effect that the screen is liable to pause or the screen is not smooth. Therefore, how to instantly determine the time point for turning off the hardware acceleration, but at the same time reduce the problem of unsmooth playback, or when the movie is turned on while the video is being accelerated and the image data is transmitted by USB/wireless transmission, the black frame is reduced. It is an important topic at present.

As described above, an exemplary embodiment of the present invention provides an image processing adjustment method and an electronic device thereof. According to whether the electronic device is currently playing a movie, or according to whether the image data of the image buffer can be captured, it is determined whether the hardware acceleration function performed by the image processor is maintained or turned off. In this way, the problem that the black screen or the display screen appearing in the wireless display is not smooth can be improved.

According to an exemplary embodiment of the present invention, the present invention provides an adjustment method for image processing. The method is suitable for an electronic device to transmit image data to a display device, and includes the following steps. The default hardware acceleration function is determined according to whether the electronic device is currently playing a movie, wherein the hardware acceleration function is performed by the image processor. This hardware acceleration function is maintained when the electronic device does not play a movie. When the electronic device is playing a movie, it detects whether the image data of the image buffer of the operating system of the electronic device can be captured.

In an exemplary embodiment of the present invention, after detecting the step of capturing image data of the image buffer, the method further includes: when no When the image data of the image buffer is captured, the hardware acceleration function is turned off, and the compressed image data is decoded by the central processing unit of the electronic device as a to-be-transmitted image data, and the central processing unit continues to compress and encode the image data. The image data to be transmitted is a display material, and the display data is transmitted to the display device.

In an exemplary embodiment of the present invention, after the step of detecting whether the image data of the image buffer can be captured, the method further includes: when the image data of the image buffer can be captured, maintaining the hardware Accelerating function, and using image processor to decode and process a compressed image data into a to-be-transmitted image data, and continue to use a central processing unit of the electronic device to compress and encode the image data to be transmitted as a display material, and transmit the display Data to the display device.

In an exemplary embodiment of the invention, the electronic device transmits display data to the display device by a wireless communication method or by a universal serial bus transmission line.

According to an exemplary embodiment of the present invention, the present invention provides an adjustment method of image processing. The method is suitable for an electronic device to transmit an image data to a display device, and includes the following steps. Determining whether to turn off the preset hardware acceleration function according to the data of an image buffer of the operating system of the electronic device, wherein the hardware acceleration function is performed by an image processor of the electronic device. When the hardware acceleration function is turned off, the central processing unit of the electronic device decodes to process a compressed image data into a to-be-transmitted image data, and the central processing unit compresses and encodes the to-be-transmitted image data into a display material. Use image processing when maintaining hardware acceleration The decoder decodes and processes the compressed image data into image data to be transmitted, or directly captures the data of the image buffer.

In an exemplary embodiment of the present invention, the step of determining whether to turn off the preset hardware acceleration function according to the data of the image buffer includes: capturing and detecting whether the data of the image buffer is an invalid data; When the data in the image buffer is confirmed to be invalid, the hardware acceleration function is turned off; and when the data in the image buffer is confirmed to be not invalid, the hardware acceleration function is maintained.

In an exemplary embodiment of the present invention, the method further includes: the electronic device is connected to the display device by a wireless communication method or by a universal serial bus transmission line; and by using the wireless communication method or by This universal serial bus transmission line transmits this display data to this display device.

In an exemplary embodiment of the present invention, the step of decoding the processed image data into the image data to be transmitted by using the image processor, or directly capturing the data of the image buffer includes: detecting whether the electronic device is currently playing the movie; When the device is not playing a video, only the image buffer data is captured as the image data to be transmitted; and when the electronic device is currently playing the video, the image processor is used to decode and process the compressed image data as the image data to be transmitted.

In an exemplary embodiment of the present invention, after the step of decoding the processed image data into the image data to be transmitted by using the image processor, or directly capturing the data of the image buffer, the method further includes: The image data to be transmitted is compression-encoded by the central processing unit into a display material.

In an exemplary embodiment of the invention, the encoding is to be transmitted in compression encoding After the image data is sent to display the data, the method further includes: transmitting the display data to the display device by using a universal serial bus transmission line or a wireless communication manner.

According to an exemplary embodiment of the invention, the invention provides an electronic device adapted to transmit image data to a display device. The electronic device includes an image processor, an operating system, a central processing unit, and a control unit. An image processor for performing a preset hardware acceleration function and decoding a compressed image data. The operating system is coupled to the image processor and includes an image buffer for temporarily storing image data. The central processing unit is coupled to the operating system for decoding a compressed image data as a to-be-transmitted image data when the hardware acceleration function is turned off. The control unit is connected to the central processing unit for determining whether to turn off the hardware acceleration function according to whether the electronic device is currently playing a movie. In addition, when the electronic device does not play a movie, the control unit does not turn off the hardware acceleration function. In addition, when the electronic device is playing a movie, the control unit further detects whether the image data of the image buffer can be captured.

According to an exemplary embodiment of the invention, the invention provides an electronic device adapted to transmit image data to a display device. The electronic device includes an image processor, an operating system, a central processing unit, and a control unit. The image processor is used to perform a preset hardware acceleration function and decode a compressed image data. The operating system is coupled to the image processor and includes an image buffer for temporarily storing image data. The central processing unit is coupled to the operating system for decoding a compressed image data as a to-be-transmitted image data when the hardware acceleration function is turned off. The control unit is connected to the central processor for viewing images The data in the buffer determines whether the hardware acceleration function is turned off.

According to an exemplary embodiment of the present invention, the present invention proposes an adjustment method of image processing and an electronic device thereof. By judging whether the video is currently being played, adaptively maintaining or turning off the hardware acceleration function performed by the image processor, and further determining whether to use the central processing unit to decode the video according to whether the image data of the image buffer can be captured. Source image data. In this way, it is possible to adaptively improve the problem that a black screen appears on the display device or the display screen is easily stopped and not smooth.

The above described features and advantages of the present invention will be more apparent from the following description.

The invention provides an image processing adjustment method and an electronic device thereof. The proposed method mainly adjusts the system setting value when transmitting the display material to the display device to reduce the problem that the display screen is black or the screen is not smooth. By instantly detecting and judging that an electronic device has a video playing, if the video player uses the "hard acceleration function" and the image data cannot be retrieved from the image buffer of the operating system, "hardware" The acceleration function is turned off. At the same time, only the image data being played in the image buffer of the operating system is captured, and the CPU is used for compression coding, and then transmitted to the display device via USB/Wireless display for subsequent decoding and playback of the image data.

Specifically, the improvement of the present invention is to instantly detect and dynamically adjust the setting of the "hard acceleration function" of the GPU, and improve the simultaneous operation. The overall performance of the USB/Wireless display and the video player, and improve the homogeneity of the video player (this is a black screen when playing a movie). When the electronic device does not play a movie, the hardware acceleration of the GPU is not turned off. When the electronic device plays the playing video, it further detects whether the image data of the image buffer of the operating system can be captured.

When the CPU of the electronic device cannot capture the image data of the image buffer of the operating system, the "hard acceleration function" is turned off, and the CPU only uses the CPU to decode the compressed image data, and decodes the video. The image data is compressed and encoded to facilitate the transmission of USB/Wireless display. When the CPU of the electronic device can capture the image data of the image buffer of the operating system, the "hard acceleration function" is not turned off, and the GPU is used to decode the video, and then the CPU compresses and encodes the image data for transmission to the image. The display device performs subsequent decoding and playback of the image.

The innovative concept of the present invention is that when the display device is transmitted to the display device by using the USB/Wireless display, the "hard acceleration function" is not consistently performed, thereby reducing the performance of the overall electronic device, but by detecting whether it can Data is retrieved from the image buffer of the operating system to determine whether to turn off hardware acceleration. When the hardware is turned off and the movie is played at the same time, only the image data in the image buffer of the operating system is captured. In this way, the load of the CPU during compression encoding can be reduced, and at the same time, the display end can obtain a full-frame video frame at the time of output.

2 is a functional block diagram of an electronic device according to an exemplary embodiment of the invention. Referring to FIG. 1A, the proposed electronic device 20 is adapted to transmit image data to a display device, and the electronic device 10 can be The line end of the line display system, such as the electronic device 10 of Figure 1B. The electronic device 20 includes an operating system 21, a central processing unit (CPU) 22, a video processing unit (GPU) 23, a memory 24, a wired connection port (or wired connection port) 25, and a wireless device. The communication module 26 and a control unit 27. The electronic device 10 is, for example, a personal computer, a notebook computer, a tablet computer, or a smart mobile phone. In addition, the wireless communication module 26 can support wireless transmission technology such as Wireless Local Area Network Compatible Standard (Wi-Fi), and the wired connection port can be a USB port. The display device, for example, the display device 11 in FIG. 1B may be a projection device, and the electronic device 20 may be connected to the display device 11 by USB or Wi-Fi.

Referring to FIG. 2, the image processor 23 is configured to perform a preset hardware acceleration function and decode a compressed image data as image data to be displayed or image data to be transmitted. The operating system 21 is coupled to the image processor 23 and includes an image buffer 210 for temporarily storing image data. The operating system 21 can also be used to execute an application 240, such as a multimedia player. The central processing unit 22 is connected to the operating system 21, the image buffer 210 and the image processor 23 for decoding when the hardware acceleration function of the image processor 23 (corresponding to the decoding processing flow of the compressed image data) is turned off. The compressed image data is a piece of image data to be transmitted.

The control unit 27 is connected to the central processing unit 22, and is connected to the operating system 21, the image buffer 210 and the image processor 23 by the central processing unit 22 for determining whether the electronic device 20 is currently playing a movie (this is the operating system). 21 Whether to execute a multimedia player to play the movie) to determine whether to turn off the hardware acceleration function. In addition, when the electronic device 20 does not have When the movie is played, the control unit 27 does not turn off the hardware acceleration function. In addition, when the electronic device 20 is playing a movie, the control unit 27 further detects whether the image data of the image buffer 210 can be captured.

In other embodiments, the central processing unit 22 can also be used to decode the compressed image data into a to-be-transmitted image data when the hardware acceleration function of the image processor 23 is turned off. The control unit 27 can also be used to determine whether to turn off the hardware acceleration function based on the data of the image buffer 210.

In the present invention, central processor 22 can be a processor module that includes a plurality of processor core units. Similarly, the image processor 23 can also be an image processor module including a plurality of image processor core units. In addition, the electronic device 20 may further include an input unit (not shown), an output unit (not shown), and other components may be included to assist the components disclosed above to perform their functions. The central processing unit 22 can also execute the operating system 21 and the application program 240. In addition, in other embodiments, the control unit 27 can be integrated with the operating system 21, and coordinate and control the central processing unit 22, the image processor 23, the memory 24, the wired connection port 25, and the wireless communication module 26.

In an embodiment of the invention, an image processing adjustment method is proposed, which includes the following main steps. Referring to FIG. 2, the control unit 27 determines whether to turn off the hardware acceleration function of the preset image processor 23 according to whether the electronic device 20 is currently playing a movie. The hardware acceleration function is activated in the preset mode. When the control unit 27 confirms that the electronic device 20 is not playing a movie, the hardware acceleration function is maintained. When the control unit 27 confirms that the electronic device 20 is playing a movie, it further detects whether it can The image data of the image buffer 210 of the operating system 21 is taken.

More specifically, in the embodiment, after the step of the control unit 27 detecting whether the image data of the image buffer 210 can be captured, the method for adjusting the image processing further includes: when the image buffer cannot be captured When the image data of 210 is turned off, the hardware acceleration function is turned off, and the compressed image data is decoded by the central processing unit 22 into a to-be-transmitted image data, and the central processing unit 22 is continuously used to compress and encode the image data to be transmitted. The data is displayed and transmitted to the display device 11.

More specifically, in the embodiment, after the step of the control unit 27 detecting whether the image data of the image buffer 210 can be captured, the method for adjusting the image processing further includes: when the image buffer can be captured When the image data of 210 is maintained, the preset hardware acceleration function is maintained, and the image processor 23 is used to decode and process a compressed image data into a to-be-transmitted image data, and continues to use the central processing unit 22 to compress and encode the to-be-transmitted image. The image data is a display material, and the display data is transmitted to the display device 11. In addition, the electronic device 20 transmits the display material to the display device 11 by a wireless communication method or by a USB transmission line.

FIG. 3 is a flow chart of a method for adjusting image processing according to an exemplary embodiment of the invention. The image processing adjustment method illustrated in FIG. 3 more clearly introduces the above-described image processing adjustment method, and is applicable to the electronic device 20 for transmitting image data to a display device, and includes the following steps. Referring to FIG. 3, the proposed image processing adjustment method starts in step S302. In this step S302, the display data is transmitted to the display device by a wireless communication method or by a wired connection. In step S304, It is checked whether the electronic device is currently playing a movie. If the result of the check is yes, then step S306 is continued after step S304; if the result of the check is no, then step S308 is continued after step S304.

With reference to FIG. 3, in step S306, it is further detected whether the image data of the image buffer can be captured. If the detection result is yes, then after step S306, proceed to step S310; if the detection result is no, then After step S306, step S312 is continued. In step 308, the preset hardware acceleration function is maintained. After step S308, step S318 is continued. In step 310, the preset hardware acceleration function is maintained. In step S312, the preset hardware acceleration function is turned off.

In step S314, only the image processor module is used to decode the image data (or a compressed image data), and the central processor is further used to compress and encode the compressed image data into a display material. In step S316, since the hardware acceleration function is turned off, only the central processing unit is used to decode a compressed image data, and the central processing unit is used to compress and encode the compressed image data into display data. After step S308, step S310, and step S314, step S318 is continued. In step S318, the display data is transmitted to the display device by a wireless communication method or by a wired connection method for subsequent decoding processing and subsequent display images. After step S318, the proposed adjustment method of the image processing ends here.

According to another embodiment of the present invention, an adjustment method of image processing is proposed, which includes the following main steps. Referring to FIG. 2, the control unit 27 determines whether to turn off the hardware acceleration function of the preset image processor 23 according to the data of the image buffer 210 of the operating system 21 of the electronic device 20. When the control unit 27 confirms that the hardware acceleration function is turned off, the control unit 27 uses the central processing unit 22 of the electronic device 20 to decode and process a compressed image data into a to-be-transmitted image data, and compresses by using the central processing unit 22 The image data to be transmitted is encoded as a display material. When the control unit 27 confirms that the hardware acceleration function is to be maintained, the control unit 27 uses the image processor 23 to decode and process the compressed image data as the image data to be transmitted, or directly capture the data of the image buffer 210.

More specifically, in the embodiment, the step of determining, by the control unit 27, whether to turn off the preset hardware acceleration function according to the data of the image buffer 210 includes: the control unit 27 captures and detects the image buffer 210. Whether the data is an invalid data (NULL); when the control unit 27 confirms that the data of the image buffer 210 is invalid data, the hardware acceleration function is turned off, and when the data of the image buffer 210 is invalid data, the situation represents the central The processor 22 cannot access the data of the image buffer 210; and when the control unit 27 confirms that the data of the image buffer 210 is not invalid, the control unit 27 maintains the preset hardware acceleration function.

More specifically, in the embodiment, the image processing adjustment method further includes: the electronic device 20 is connected to the display device 11 by a wireless communication method or by a universal serial bus transmission line; The wireless communication method or the universal serial bus transmission line transmits the display material to the display device 11.

More specifically, in the embodiment, the foregoing control unit 27 uses only the image processor 23 to decode and process a compressed image data as the image data to be transmitted, or directly captures the data of the image buffer 210. The control unit 27 detects whether the electronic device 10 is currently playing a movie; when the electronic device 10 does not currently play the movie, the control unit 27 only captures the data of the image buffer 210 as the image data to be transmitted; and when the electronic device 10 is currently When the movie is played, the control unit 27 uses only the image processor to decode and process a compressed image data as the image data to be transmitted.

More clearly, in the embodiment, after the step of decoding and processing a compressed image data by using the image processor as the image data to be transmitted or directly capturing data of the image buffer, the provided image is provided. The adjustment method of the processing further includes: the control unit 27 uses the central processing unit 22 to compress and encode the image data to be transmitted into a display material. In addition, the central processing unit 22 transmits the display data to the display device 11 by means of a universal serial bus transmission line or a wireless communication method.

FIG. 4 is a flow chart showing another method of adjusting image processing according to an exemplary embodiment of the present invention. The image processing adjustment method illustrated in FIG. 4 more clearly introduces the above-described image processing adjustment method, and is applicable to the electronic device 20 for transmitting image data to a display device, and includes the following steps. Referring to FIG. 3, the proposed image processing adjustment method starts in step S410. In this step S410, the display data is transmitted to the display device by a wireless communication method or by a wired connection. In step S422, the data of the image buffer is captured, and the data of the image buffer is detected as an invalid data. If the detection result is yes, after step S422, step S424 is continued; if the detection result is Otherwise, after step S422, step S426 is continued.

Please continue to refer to FIG. 4, in step S424, the preset hardware plus is turned off. Speed function. In step S432, the central processing unit is used to compress and encode an image data (or a compressed image data) into a to-be-transmitted image data. In step S434, only the image data is captured from the image buffer (this is the image data to be transmitted).

In step S426, the preset hardware acceleration function is maintained. In step S442, it is further detected whether the electronic device is currently playing a movie. If the detection result is yes, after step S442, step S446 is continued; if the detection result is no, then after step S442, step S448 is continued. . In step S446, only the image processor is used to decode the image data (or the compressed image data) as the image data to be transmitted. In step S448, the image data of the image buffer is directly captured as the image data to be transmitted. In addition, after step S446 and step S448, step S436 is continued. In step S436, the central processing unit is used to compress and encode the image data to be transmitted as display data.

In step S452, the display data is transmitted to the display device by a wireless communication method or by a wired connection. In step S454, the display device performs subsequent decoding processing and subsequent display of the image to display the image. After step S454, the proposed adjustment method of the image processing ends here.

In summary, according to the above exemplary embodiments, the present invention provides an image processing adjustment method and an electronic device thereof. By judging whether the video is currently being played, adaptively maintaining or turning off the hardware acceleration function performed by the image processor, and further determining whether to use the central processing unit to decode the video according to whether the image data of the image buffer can be captured. Corresponding image material. In this way, it is possible to adaptively improve the problem that a black screen appears on the display device or the display screen is easily stopped and not smooth.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

10, 20‧‧‧ electronic devices

102, 22‧‧‧ central processor

104, 23‧‧ ‧ image processor

11‧‧‧ display device

21‧‧‧Operating system

210‧‧‧Image buffer

24‧‧‧ memory

240‧‧‧Application

25‧‧‧Wired connection port

26‧‧‧Wireless communication module

27‧‧‧Control unit

S302~S318, S410~S454‧‧‧ steps

FIG. 1A illustrates the transmission of display material using a wired transmission line.

FIG. 1B illustrates the transmission of display data by means of a wireless transmission method or a universal serial bus transmission line.

2 is a functional block diagram of an electronic device according to an exemplary embodiment of the invention.

FIG. 3 is a flow chart of a method for adjusting image processing according to an exemplary embodiment of the invention.

FIG. 4 is a flow chart showing another method of adjusting image processing according to an exemplary embodiment of the present invention.

S302~S318‧‧‧Steps

Claims (23)

An image processing adjustment method is applicable to an electronic device transmitting an image data to a display device, comprising: determining whether to turn off a preset hardware acceleration function according to whether the electronic device is currently playing a movie, wherein the hardware is The acceleration function is performed by an image processor of the electronic device; when the electronic device does not play a movie, the hardware acceleration function is not turned off; and when the electronic device is playing a movie, detecting whether the electronic device can capture the electronic device The image data of an image buffer of an operating system of the device determines whether the hardware acceleration function is turned off. The method of claim 1, wherein after detecting the step of capturing the image data of the image buffer, the method further comprises: when the image of the image buffer cannot be captured When the data is turned off, the hardware acceleration function is turned off, and a central processing unit of the electronic device decodes and processes a compressed image data into a to-be-transmitted image data, and continues to compress and encode the to-be-transmitted image data by using the central processing unit. Displaying the data and transmitting the display data to the display device. The method of claim 1, wherein after detecting the step of capturing the image data of the image buffer, the method further comprises: capturing the image of the image buffer When the data is maintained, the hardware acceleration function is maintained, and the image processor is used to decode and process a compressed image. The image data is a piece of image data to be transmitted, and a central processing unit of the electronic device continues to compress and encode the image data to be transmitted into a display material, and transmits the display data to the display device. The method of claim 1, wherein the electronic device transmits the display material to the display device by a wireless communication method or by a universal serial bus transmission line. An image processing adjustment method is applicable to an electronic device transmitting an image data to a display device, comprising: determining whether to turn off a preset hardware acceleration function according to data of an image buffer of an operating system of the electronic device The hardware acceleration function is performed by an image processor of the electronic device; when the hardware acceleration function is turned off, a central processing unit of the electronic device decodes and processes a compressed image data into a to-be-transmitted image data. And using the central processing unit to compress and encode the to-be-transmitted image data into a display data; and when the hardware acceleration function is maintained, using the image processor to decode and process the compressed image data into the to-be-transmitted image data or directly Take the data of the image buffer. The method of claim 5, wherein the step of determining whether to turn off the preset hardware acceleration function according to the data of the image buffer comprises: capturing and detecting whether the data of the image buffer is invalid. Data; when the data of the image buffer is confirmed as the invalid data, the hardware acceleration function is turned off; When it is confirmed that the data of the image buffer is not the invalid data, the hardware acceleration function is maintained. The method of claim 5, further comprising: connecting the display device by a wireless communication method or by a universal serial bus transmission line; and by using the wireless communication method or by using the wireless communication method The universal serial bus transmission line transmits the image data to be transmitted to the display device. The method of claim 5, wherein the step of decoding, by the image processor, the compressed image data as the image data to be transmitted or directly capturing data of the image buffer comprises: detecting the current electronic device Whether the video is being played; when the electronic device does not currently play the movie, only the data of the image buffer is captured as the image data to be transmitted; and when the electronic device is currently playing the video, the image processor is used to decode and process the video. The compressed image data is the image data to be transmitted. The method of claim 8, wherein after the step of decoding the processed image data into the image data to be transmitted or directly capturing the data of the image buffer by using the image processor, the method The method further includes: compressing and encoding the to-be-transmitted image data into a display material by using the central processing unit. The method of claim 9, wherein after compressing and encoding the image data to be transmitted as the display material, the method further comprises: The display data is transmitted to the display device by a universal serial bus transmission line or a wireless communication method. An electronic device, configured to transmit an image data to a display device, the electronic device comprising: an image processor for performing a preset hardware acceleration function, and decoding a compressed image data; an operating system, connecting The image processor includes an image buffer for temporarily storing image data; and a central processing unit connected to the operating system for decoding a compressed image data when the hardware acceleration function is turned off And a control unit is connected to the central processing unit to determine whether to turn off the hardware acceleration function according to whether the electronic device is currently playing a movie, wherein: when the electronic device does not play the movie The control unit does not turn off the hardware acceleration function; and when the electronic device is playing a movie, the control unit further detects whether the image data of the image buffer can be captured. The display device of claim 11, wherein: when the image data of the image buffer cannot be captured, the control unit turns off the hardware acceleration function, and uses the central processing unit to decode and process the image. The compressed image data is the image data to be transmitted, and the central processing unit continues to compress and encode the image data to be transmitted into the display data, and transmits the display image data to the display device. The display device of claim 11, wherein: when the image data of the image buffer is captured, the hardware acceleration function is maintained, and the compressed image data is decoded and processed by the image processor. The image data to be transmitted is continuously compressed and encoded by the central processing unit to be the display data, and the display data is transmitted to the display device. The display device of claim 11, wherein the electronic device further comprises a wired connection port connected to the display device for transmitting the display data to the display device. The display device of claim 14, wherein the wired connection port is a universal serial bus port. The display device of claim 11, wherein the electronic device further comprises a wireless communication module for transmitting the display data to the display device by a wireless communication method. An electronic device, configured to transmit an image data to a display device, the electronic device comprising: an image processor for performing a preset hardware acceleration function, and decoding a compressed image data; an operating system, connecting The image processor includes an image buffer for temporarily storing image data; and a central processing unit connected to the operating system for decoding a compressed image data when the hardware acceleration function is turned off And a control unit is connected to the central processing unit to determine whether to turn off the hardware acceleration function according to the data of the image buffer. The display device of claim 17, wherein: when the control unit confirms that the hardware acceleration function is turned off, the control unit uses the central processing unit to decode and process the compressed image data into the image data to be transmitted. And the central processing unit compresses and encodes the to-be-transmitted image data into a display data; and when the control unit maintains the hardware acceleration function, the control unit uses the image processor to decode and process the compressed image data for the to-be-transmitted Image data or directly capture the data in the image buffer. The display device of claim 17, wherein: the control unit captures and detects whether the data of the image buffer is an invalid data; when the control unit confirms that the data of the image buffer is the invalid data And the control unit turns off the hardware acceleration function; and when the control unit confirms that the data of the image buffer is not the invalid data, the control unit maintains the hardware acceleration function. The display device of claim 17, wherein the control unit compresses and encodes the image data to be transmitted into a display data by using the central processing unit. The display device of claim 20, wherein the electronic device further comprises a wired connection port connected to the display device for transmitting the display data to the display device. The display device of claim 21, wherein the wired connection port is a universal serial bus port. The display device of claim 20, wherein the electronic device further comprises a wireless communication module for using a wireless communication party The display data is transmitted to the display device.