TWI466100B - Electronic apparatuses and processing methods of display data thereof - Google Patents

Description

Electronic device and processing method thereof

The present invention relates to an electronic device and a method for processing the same, and more particularly to a method for processing an electronic device for displaying data to a display device and displaying the same.

In general, video data is transmitted to a display device for display through a video display interface such as VGA/HDMI. In recent years, with the improvement of various transmission interface technologies and the rapid development of wireless network applications, the demand for wireless audio and video transmission has also increased, so that video data can also be transmitted to display devices for display through various communication interfaces. Generally, the display method of the communication interface, such as the WIFI interface or the USB interface, captures the raw data displayed on the current screen from the frame buffer. However, since the size of the original data may exceed the bandwidth limitation of the communication interface, the bandwidth of the communication interface cannot be loaded. Therefore, the central processing unit (CPU) is used to perform an image encoding operation, thereby compressing the image data to conform to The bandwidth requirements of the communication interface. Since the image capture and encoding processes are operated through the central processing unit, the system resources are taken up by them. If at this time, some high-quality movies (such as 1080P movies) or some more resource-consuming software are played. This will lead to delays in system execution, thus affecting the efficiency of image capture and encoding processing, which in turn affects the frame rate of the display method through the communication interface such as WIFI interface or USB interface.

In addition, in terms of the performance of the current wireless display, Due to factors such as the bandwidth of the image capture and the wireless transmission and the quality of the transmission channel, the quality and speed of the viewing are always matched with the playback effect through the image display interface such as the VGA/HDMI interface.

Therefore, there is a need for a method and an electronic device that can improve image capture efficiency and frame rate.

In view of the above, the present invention provides a method for processing an electronic device for displaying data to a display device and a display thereof to solve the above problems.

An embodiment of the present invention provides an electronic device for providing display data to a display device, including a graphics processing module, a signal converter, and a selector. The graphics processing module is configured to generate a first display material in a first format according to an original data. The signal converter is used to restore the first display data to the original data. The selector is configured to selectively provide the first display material to the display device or the signal converter according to a selection signal. The graphics processing module provides a second display data in a second format to the display device when the graphics processing module receives the original data from the signal converter, wherein the first format and the second format are compatible with different interface specifications.

The embodiment of the present invention further provides a method for processing display data, which is applicable to an electronic device for providing display data to a display device. The electronic device includes at least a graphics processing module, a selector, and a signal converter. The method includes the following steps. First, the graphics processing module generates a first display material in a first format according to an original data. Then, the selector selectively provides the first display material to the display according to a selection signal Device or signal converter. When the graphics processing module receives the original data from the signal converter, the second display data of the second format is provided to the display device, wherein the first format and the second format are compatible with different interface specifications.

The embodiment of the invention further provides a method for processing display data, which is used for providing display data to a first display device or a second display device. Includes the following steps. First, a first display material in a first format is generated based on an original data. Then, according to a selection signal, it is determined to be displayed on the first display device or the second display device. When it is decided to display on the first display device, the first display material is provided to the first display device. When it is determined to be displayed on the second display device, the first display data is restored back to the original data through a signal converter, and the second display data of the second format is generated according to the restored original data through a graphic processing module. And providing the second display material in the second format to the second display device, wherein the first format and the second format are compatible with different interface specifications.

The above method of the present invention can exist in a coded manner. When the code is loaded and executed by the machine, the machine becomes the means for practicing the invention.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Figure 1 shows a schematic diagram of a display system in accordance with an embodiment of the present invention. As shown in FIG. 1 , the display system 10 is coupled to at least one electronic device 100 and a display device 200 . The electronic device 100 is coupled to the display device 200 . Used to provide display materials to the display device 200. For example, the electronic device 100 may include a personal computer and a portable device such as a personal digital assistant, a smart phone, a mobile phone, a mobile Internet device (MID), a notebook computer, or a mini notebook computer (Netbook). And so on, but not limited to this. The display device 200 can be a built-in or external display of the aforementioned electronic device, such as a liquid crystal display, a television screen, etc., but is not limited thereto. The electronic device 100 can include a frame buffer 110, a central processing unit (CPU) 120, a graphics processing module 130, a selector 142, a signal converter 144, and a first Interface 150 and a second interface 160. The picture buffer 110 is coupled to the central processing unit 120 and the graphics processing module 130. Specifically, the picture buffer 110 can be coupled to the central processing unit 120 and the graphics processing module 130 through a system bus bar inside the electronic device 100, so that the central processing unit 120 and the graphics processing unit 130 can be accessed via the system bus. The material stored in the picture buffer 110. The graphics processing module 130 can use the original data in the screen buffer 110 (the current display data of the screen) and the drawing commands or parameters sent from the central processing unit 120 to execute a drawing job to generate data by using raw data. The first display material displayed on the display device 200. The first format is compatible with the interface specification of the first interface 150. For example, the first interface 150 can be an image display interface, including a video graphics array (VGA Graphics Array) interface, a digital video interface (Digital Visual Interface, DVI interface), and a high-quality multimedia interface (High). Definition Multimedia Interface (referred to as HDMI interface), TV output (TV-OUT) interface or display port (Display Port) at least one or a combination thereof, but Not limited to this.

The signal converter 144 can be used to restore the first display data generated by the graphics processing module 130 to the original data. The selector 142 is coupled to the graphics processing module 130 and the signal converter 144 to selectively provide the first display data to the display device 200 or the signal converter 144 according to a selection signal. In an embodiment, the electronic device 100 can further provide an application, and the user can generate a selection signal for selecting the original video display data to be transmitted to the first interface 150 or the second interface 160. The display device 200 is displayed for display. When the selection signal corresponds to the first interface 150, the selector 142 can directly provide the first display data of the first format generated by the graphics processing module 130 to the display device 200 through the first interface 150.

When the selection signal corresponds to the second interface 160, since the interface specification of the second interface 160 is different from the interface specification of the first interface 150, the first display data needs to be further processed, so the selector 142 will be the first Display data is provided to signal converter 144 for further processing.

After receiving the first display material from the selector 142, the signal converter 144 may perform a signal conversion operation to convert/restore the first display data into the original data, and after the signal conversion operation is completed, the original data to be restored Output to the graphics processing module 130. In some embodiments, the graphics processing module 130 can further include a buffer 136 for storing the received original data. When the graphics processing module 130 receives the original data from the signal converter 144, the graphics processing module 130 may generate a second display data in a second format according to the original data and provide the second display data to the display device 200. Wherein the second format is compatible with the second interface 160 Interface specifications. For example, the second interface 160 can be a communication interface, which can include a wired communication interface such as a USB or SATA interface, and a wireless communication interface such as WIFI, IEEE 802.11 interface or Bluetooth interface, etc., but is not limited thereto.

The graphics processing unit 130 can further include a graphics processing unit (GPU) 132 and an interface module 134. The graphics processing unit 132 can be used to perform encoding and compression according to the original data from the signal converter 144. The operation is performed to re-encode the original data into the second display data corresponding to the interface format of the second interface 160, and the interface module 134 is coupled to the graphics processing unit 132 for outputting the second display generated by the graphics processing unit 132. The data is provided to the display device 200 through the second interface 160. For example, if the second interface 160 is a USB interface, the graphics processing unit 132 re-encodes the original data into display data in a format that meets the bandwidth requirement of the USB interface to transmit the display data through the USB interface through the interface module 134. The output to the display device 200, and if the second interface 160 is a WIFI interface, the graphics processing unit 132 re-encodes the original data into display data in a format that meets the bandwidth requirement of the WIFI interface to display the data through the interface module. 134 is wirelessly transmitted to the display device 200 through the WIFI interface. The electronic device 100 can be used to perform the processing method of the display material of the present case, the details of which will be described later.

2 is a flow chart showing a method of processing display data according to an embodiment of the present invention. Please refer to both Figure 1 and Figure 2. The method for processing the display data according to the embodiment of the present invention can be applied to the electronic device 100 of the display system 10 for transmitting the display data to the display device 200 for display according to the interface specified by the selection signal.

First, in step S202, the graphics processing module 130 generates a first display material in a first format according to the original data. In this embodiment, the data of the first format is compatible with the information of the interface specification of the first interface 150. In one embodiment, the first interface 150 can be an image display interface, including a video graphics array (VGA) interface, a digital video interface (DVI interface), a high-quality multimedia interface (HDMI interface), and a TV output (TV-OUT). At least one of or a combination of interfaces or display ports, but is not limited thereto. For example, if the first interface 150 is a digital video interface, the graphics processing unit 132 in the graphics processing module 130 will generate compatibility according to the original data (the current display data of the screen) extracted from the image buffer 110. The first display data of the interface specification of the digital video interface, so that the first display data can be transmitted through the digital video interface.

Next, in step S204, the selector 142 receives and determines whether the selected display interface is the first interface 150 according to the selection signal. In an embodiment, the first interface 150 is an image display interface, such as a VGA/DVI/HDMI interface. Therefore, determining whether the selected display interface is the first interface 150 determines whether the selected display interface is An image display interface. If the electronic device 100 is coupled to the display device 200 through the first interface 150, the selector 142 can directly provide the first display data to the display device 200 through the first interface 150. No additional conversion operations are required in this step.

On the other hand, if it is determined that the selected display interface is not an image display interface (No in step S204), it indicates that the selected display interface is the second interface 160 (for example, a WIFI interface), and further processing is required. Then, in step S208, the selector 142 transmits the first display data to the signal conversion. 144. After receiving the first display data, in step S210, the signal converter 144 performs a signal conversion operation, converts/restores the first display data into original data, and transmits/outputs the original data to the graphics processing module 130. Specifically, the original video material will be stored in the buffer 136 of the graphics processing module 130. Next, in step S212, the graphics processing module 130 re-encodes the original data into a second display material in a second format corresponding to the interface specification of the second interface 160. The first format and the second format are compatible with different interface specifications. In one embodiment, the second interface 160 can be a wired communication interface such as a USB or SATA interface, and a wireless communication interface such as WIFI, IEEE 802.11 interface or Bluetooth interface, etc., but is not limited thereto. For example, if the second interface 160 is a USB or WIFI interface, the second display data is data that is compatible with the bandwidth requirement of the interface specification of the USB or WIFI interface. Therefore, the second display data can be subsequently displayed. Transfer via USB or WIFI interface.

After the second display data of the second format is generated, the graphic processing module 130 can transmit/output the second display data of the second format to the display device 200 through the interface 134 via the second interface 160. display.

In some embodiments, the display system may include more than one display device, and the present invention further provides a method for processing the display data that can be displayed on the designated display device according to the selection signal.

Figure 3 shows a schematic diagram of a display system in accordance with another embodiment of the present invention. The display system 10 ′ of FIG. 3 is similar to the display system 10 of FIG. 1 . The difference is that the selector 142 of the electronic device 100 ′ in the display system 10 ′ is coupled to a first display device 210 and the graphic through the first interface 150 . deal with The module 130 is coupled to a second display device 220 through the second interface 160. In this embodiment, the user can generate a selection signal to select whether to display the data on the first display device 210 or the second display device 220.

Figure 4 is a flow chart showing a method of processing display data according to another embodiment of the present invention. Please refer to Figures 3 and 4 at the same time. The method for processing display data according to the embodiment of the present invention can be applied to the electronic device 100' of FIG. 3 for providing display data to a designated display device for display according to a display device designated by a selection signal.

First, in step S402, the graphics processing module 130 generates a first display material in a first format according to an original data. The first format is compatible with the interface standard of the first interface. In one embodiment, the first interface 150 can be an image display interface 150, including a video graphics array (VGA) interface, a digital video interface (DVI interface), a high-quality multimedia interface (HDMI interface), and a TV output (TV- At least one of the OUT) interface or display port, or a combination thereof, but is not limited thereto. For example, if the first interface 150 is a high-quality multimedia interface, the graphics processing unit 132 in the graphics processing module 130 will generate the original data (the current display information of the screen) according to the self-image buffer 110. The first display material compatible with the interface specification of the high-definition multimedia interface, so that the first display data can be transmitted through the high-quality multimedia interface.

Next, the selector 142 receives a selection signal (step S404), and according to the selection signal, determines whether the original material is to be displayed on the first display device 210 (step S406). In this step, the electronic device 100 can provide an application program, and the user can generate a selection signal for specifying the original video display data to be displayed on the first display device 210 or The second display device 220 is on.

When it is determined to be displayed on the first display device 210 (Yes in step S406), since the electronic device 100' is coupled to the first display device 210 through the first interface 150, the selector 142 directly transmits the first display data. An interface 150 is provided to the first display device 210 (step S408).

When it is determined to be displayed on the second display device 220 (No in step S406), since the electronic device 100' is coupled to the second display device 220 through the second interface 160, it is necessary to first generate the first format of the first format. The display data is converted to a second display material in a second format that is compatible with the interface specification of the second interface 160. Then, the selector 142 transmits the first display data to the signal converter 144 (step S410), and then restores the first display data back to the original data through the signal converter 144, through the graphics processing module 130, according to the original of the restoration. The data is generated as a second display material in a second format (step S412). The first format and the second format are compatible with different interface specifications. In one embodiment, the second interface 160 can be a wired communication interface such as a USB or SATA interface, and a wireless communication interface such as WIFI, IEEE 802.11 interface or Bluetooth interface, etc., but is not limited thereto. For example, if the second interface 160 is a USB or WIFI interface, the second display data is data that is compatible with the bandwidth requirement of the interface specification of the USB or WIFI interface. Therefore, the second display data can be subsequently displayed. Transfer via USB or WIFI interface. After the second display data in the second format is generated, the graphics processing module 130 provides the second display data in the second format to the second display device 220 through the second interface 160 (step S414). Therefore, the second display material will be displayed on the second display device 220.

Similarly, in some embodiments, as shown in Figure 3, graphics processing The module 130 can be coupled to the first display device 210 and the second display device 220 through the second interface 160. The user can generate a selection signal to select the data to be displayed on the first display device 210 through the second interface 160. / or second display device 220.

Therefore, the method for processing the display data and the related electronic device according to the present invention can be used to add a selector and a signal converter to the original display architecture, so that the communication can be made without affecting the execution performance of the processing unit and the display system. The display of the interface such as the WIFI interface/USB interface is stable and the number of frames is close to the display of the image display interface such as VGA/HDMI/DVI interface. In addition, the processing method for displaying data according to the present invention and related electronic devices are used for image capturing and image encoding operations by the hardware acceleration capability of the graphics processing unit (GPU), and do not need to use the central processing unit to do more. Image capture and image encoding operations reduce the burden on the electronic device and the central processing unit (CPU), greatly reducing the reliance on the processing unit, making it less susceptible to the resources of the central processing unit, resulting in frame rate (frame rate) It is unstable, so it can improve the coding efficiency after image capture, and thus achieve the effect of improving the frame rate.

The method of the invention, or a particular type or portion thereof, may exist in the form of a code. The code may be included in a physical medium such as a floppy disk, a CD, a hard disk, or any other machine readable (such as computer readable) storage medium, or is not limited to an external computer program product, wherein When the code is loaded and executed by a machine, such as a computer, the machine becomes a device for participating in the present invention. The code can also be transmitted over some transmission medium, such as a wire or cable, fiber optics, or any transmission type, where the machine becomes used when the code is received, loaded, and executed by a machine, such as a computer. Participating in the device of the invention. When implemented in a general purpose processing unit, the code combination processing unit provides a unique means of operation similar to application specific logic.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

10, 10'‧‧‧ display system

100, 100’‧‧‧ electronic devices

110‧‧‧ Picture buffer

120‧‧‧Central Processing Unit

130‧‧‧Graphic Processing Module

132‧‧‧Graphic Processing Unit

134‧‧‧Interface module

136‧‧‧buffer

142‧‧‧Selector

144‧‧‧Signal Converter

150‧‧‧ first interface

160‧‧‧second interface

200‧‧‧ display device

210‧‧‧First display device

220‧‧‧Second display device

S202-S214‧‧‧Steps

S402-S414‧‧‧Steps

Figure 1 is a schematic diagram showing a display system in accordance with an embodiment of the present invention.

Figure 2 is a flow chart showing a method of processing display data in accordance with an embodiment of the present invention.

Figure 3 is a schematic diagram showing a display system in accordance with another embodiment of the present invention.

Figure 4 is a flow chart showing a method of processing display data according to another embodiment of the present invention.

S202-S214‧‧‧Steps

Claims (17)

An electronic device for providing display data to a display device, comprising: a graphics processing module, configured to generate a first display data in a first format according to an original data; a signal converter to The first display data is restored to the original data; and a selector is configured to selectively provide the first display data to the display device or the signal converter according to a selection signal; wherein when the graphic processing module receives And when the original data from the signal converter is used, providing a second display material in a second format to the display device; wherein the first format and the second format are compatible with different interface specifications. The electronic device of claim 1, wherein the graphics processing module comprises: a graphics processing unit, configured to generate the second display data in the second format according to the original data from the signal converter And an interface module coupled to the graphics processing unit for providing the second display data generated by the graphics processing unit to the display device. The electronic device of claim 2, wherein the graphics processing module further comprises a buffer for storing the original data and the second display material. The electronic device of claim 1, further comprising a first interface and a second interface, wherein the first format is compatible with the first An interface specification that is compatible with the interface specification of the second interface. The electronic device of claim 4, wherein the first interface comprises a video graphics array (VGA) interface, a digital video interface (DVI), a high-definition multimedia interface (HDMI), and a television output (TV-OUT). Interface or display at least one of or a combination of display ports. The electronic device of claim 4, wherein the second interface comprises a wired communication interface/wireless communication interface. The electronic device of claim 6, wherein the wired communication interface is a USB interface. The electronic device of claim 4, wherein the selector directly supplies the first display material to the display device through the first interface when the selection signal corresponds to the first interface When the selection signal corresponds to the second interface, the first display material is provided to the signal converter. The electronic device of claim 1, wherein the selection signal is generated by an application. A method for processing data is provided for an electronic device for providing display data to a display device. The electronic device includes at least a graphics processing module, a selector, and a signal converter. The method includes the following steps: The graphics processing module generates a first display data in a first format according to an original data; the selector selectively provides the first display data to the display device or the signal converter according to a selection signal; as well as Providing, when the graphics processing module receives the original data from the signal converter, a second display material in a second format to the display device; wherein the first format and the second format are compatible with each other Interface specifications. The method for processing display data according to claim 10, wherein the graphics processing module further comprises a graphics processing unit and an interface module, and the graphics processing module receives the signal from the signal converter The step of providing the second display data in the second format to the display device includes: generating, by the graphics processing unit, the second display in the second format according to the original data from the signal converter And providing the second display material generated by the graphics processing unit to the display device through the interface module. The method of processing the display data according to claim 10, wherein the electronic device further comprises a first interface and a second interface, wherein the first format is compatible with the interface specification of the first interface, The second format is compatible with the interface specifications of the second interface. The method for processing display data according to claim 12, wherein the first interface comprises a video graphics array (VGA) interface, a digital video interface (DVI), a high-definition multimedia interface (HDMI), and a television output (TV). -OUT) at least one of or a combination of interfaces or display ports. The method for processing display data according to claim 12, wherein the second interface comprises a wired communication interface/wireless communication interface. The processing of the displayed data as described in item 12 of the patent application scope The method, wherein the step of selectively providing the first display data to the display device or the signal converter according to the selection signal comprises: when the selection signal corresponds to the first interface, directly a display data is provided to the display device through the first interface; and when the selection signal corresponds to the second interface, the first display material is provided to the signal converter. The method for processing display data as described in claim 10, further comprising: providing an application for generating the selection signal. A method for processing display data for providing display data to a first display device or a second display device includes the steps of: generating a first display data in a first format according to an original data; Determining to be displayed on the first display device or the second display device; providing the first display material to the first display device when deciding to display on the first display device; and when deciding to display on the second display device In the device, the first display data is restored back to the original data through a signal converter, and the second display data in the second format is generated and provided according to the restored original data through a graphics processing module. And displaying the second display data in the second format to the second display device; wherein the first format and the second format are compatible with different interface specifications.