CN116095261A - Display method and display device - Google Patents

Abstract

The application discloses a display method, display equipment and a computer readable storage medium, which relate to the technical field of display and can be used for displaying images. The method comprises the following steps: acquiring the EDID processing capability of the extended display identification data of the video source equipment; receiving first video data from the video source device under the condition that the EDID processing capability of the video source device is supporting parsing and expanding EDID; adjusting the resolution of the first video data from the first resolution to a second resolution to obtain second video data; adjusting the resolution of the second video data from the second resolution to the third resolution to obtain third video data; the third resolution is a resolution of a display of the display device; the third video data is displayed in a manner that scans two rows of pixels simultaneously.

Description

A display method and display device

technical field

The present application relates to the field of smart devices, and in particular to a display method and a display device.

Background technique

At present, HDMI (high definition multimedia interface, high-definition multimedia interface) has been widely used in display devices such as televisions. HDMI is a digital video/audio interface technology that transmits audio and video signals simultaneously. An HDMI device (that is, a video source device) can input high-frequency video data, such as 240 Hz high frame rate video data, to a display device such as a TV. However, since the data receiving interface (such as v-by-one cable or v-by-one interface) of the screen driver board (timing controller, TCON) in most display devices can only receive 120hz video that meets its own resolution requirements at most. Video data, 240hz video data has exceeded the transmission bandwidth of the v-by-one cable. Therefore, in the prior art, the video data resolution is generally reduced to allow bandwidth to smoothly transmit video data to the TCON, so that the TCON can control the display screen for display. But in this way, the clarity of the video will be much lower than that sent by the video source device. Further, since the refresh rate supported by the hardware of the display screen of the TV itself is 120hz, it is necessary to adopt a soft high refresh technology (such as hardware superresolution (hardware superresolution, HSR) or dual line gate (DLG) technology ), so that the display screen can achieve a refresh rate of 240hz to display 240hz video. However, the soft high refresh technology will reduce the number of pixels in the vertical direction in the video data, resulting in a decrease in the definition of the final video.

In addition, if the video data input by the video source device itself is 120hz, then in order to present the display effect of 240hz, it is necessary to use motion estimation/motion compensation technology (motion estimate/motion compensation, MEMC) to multiply the video frequency of 120hz to 240hz. However, this technology will cause a large number of repeated video frames in the final displayed video, which is not smooth enough in terms of perception.

Contents of the invention

Embodiments of the present application provide a display method and a display device, which can clearly and smoothly display video data with a higher refresh rate when the refresh rate supported by the display device itself is low.

In order to achieve the above object, the embodiments of the present application adopt the following technical solutions:

In a first aspect, a display device is provided, and the display device may include: a display; the refresh rate of the display is a first refresh rate, and the resolution of the display is a third resolution; a processor configured to acquire the video source device Extended display identification data EDID processing capability; the communicator is configured to receive the first video data from the video source device when the EDID processing capability of the video source device supports parsing the extended EDID; the extended EDID is used to indicate the receiving resolution It is video data with the first resolution and the frame rate is the first frame rate; the resolution of the first video data is the first resolution, and the frame rate of the first video data is the first frame rate; the first frame rate is the first twice the refresh rate; the processor is also configured to adjust the resolution of the first video data from the first resolution to the second resolution to obtain the second video data; the second horizontal pixel value of the second resolution is the same as The third horizontal pixel value of the third resolution is the same, the second vertical pixel value of the second resolution is half of the third vertical pixel value of the third resolution; the bandwidth requirement value of the second video data is less than or equal to that of the display device The maximum bandwidth supported by the data receiving interface of the screen driver board TCON; the processor is also configured to adjust the resolution of the second video data from the second resolution to the third resolution to obtain the third video data ; The processor is also configured to control the display to display the third video data by scanning two rows of pixels at the same time.

In a possible implementation manner of the first aspect, the processor is specifically configured to: if it is determined that the type of the video source device is the first type of device, determine that the EDID processing capability of the video source device supports parsing the extended EDID.

In a possible implementation manner of the first aspect, the processor is specifically configured to: if it is determined that the type of the video source device is not the first type of device, acquire the characteristic parameters of the video source device; If it can be resolved, the EDID processing capability of the video source device is determined according to the characteristic parameters of the video source device.

In a possible implementation manner of the first aspect, the processor is specifically configured to: control the communicator to send a query request to the server; the query request carries characteristic parameters of the video source device, and the query request is used to request the EDID of the video source device Processing capability; control the communicator to receive the query response from the server; if the query response indicates that there is an EDID processing capability of the video source device and indicates that the EDID processing capability of the video source device supports parsing the extended EDID, then determine the EDID of the video source device The processing capability supports parsing extended EDID; if the query response indicates that there is no EDID processing capability of the video source device or indicates that the EDID processing capability of the video source device does not support parsing the extended EDID, obtain the display data channel DDC communication of the video source device Statistical value; the DDC communication statistical value is used to indicate the degree of completion of the video source device to read the extended EDID of the display device; if the DDC communication statistical value indicates that the completion degree of the video source device to read the extended EDID of the display device is all completed, then determine the video source The EDID processing capability of the device is to support parsing extended EDID.

In a possible implementation manner of the first aspect, the processor is specifically configured to: acquire the DDC communication statistical value of the display data channel of the video source device when the characteristic parameter of the video source device cannot be parsed; the DDC communication statistical value It is used to indicate the completion degree of the video source device to read the extended EDID of the display device; if the DDC TRAINING status indicates that the completion degree of the video source device to read the extended EDID of the display device is all completed, then it is determined that the EDID processing capability of the video source device is supported Parse extended EDID.

In a possible implementation manner of the first aspect, the processor is specifically configured to: copy each row of pixels in each video frame in the first video data, so that the resolution of the first video data is determined by the first resolution rate is adjusted to the fourth resolution to obtain the fourth video data; the fourth vertical pixel value of the fourth resolution is double the first vertical pixel value of the first resolution; the fourth video data of each video frame Each column of pixels is copied, and the repeated row pixels in each video frame in the fourth video data are deduplicated, so that the resolution of the fourth video data is adjusted from the fourth resolution to the second resolution, and the second resolution is obtained. video data.

In a possible implementation manner of the first aspect, the processor is specifically configured to: copy each row of pixels in each video frame of the second video data, so that the resolution of the second video data is determined by the second The resolution is adjusted to the third resolution to obtain third video data.

In a possible implementation of the first aspect, the first refresh rate is 120 Hz, the first resolution is 1920*1080 progressive scanning P, the first frame rate is 240 Hz, and the third resolution is 3840*2160P .

In a second aspect, a display method is provided, which is applied to a display device. The method may include: acquiring the extended display identification data EDID processing capability of the video source device; receiving the first video data from the video source device when the EDID processing capability of the video source device supports parsing the extended EDID; the extended EDID is used for Indicates to receive video data whose resolution is the first resolution and the frame rate is the first frame rate; the resolution of the first video data is the first resolution, and the frame rate of the first video data is the first frame rate; the first frame The rate is twice the first refresh rate; the resolution of the first video data is adjusted from the first resolution to the second resolution to obtain the second video data; the second horizontal pixel value of the second resolution is the same as the third The third horizontal pixel value of the resolution is the same, and the second vertical pixel value of the second resolution is half of the third vertical pixel value of the third resolution; the third resolution is the resolution of the display of the display device; the second video The bandwidth requirement value of the data is less than or equal to the maximum bandwidth supported by the data receiving interface of the screen driver board TCON of the display device; the resolution of the second video data is adjusted from the second resolution to the third resolution, The third video data is obtained; and the third video data is displayed by scanning two rows of pixels at the same time.

In a third aspect, a display device is provided, and the display device has a function of implementing the method described in the second aspect above. This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more modules corresponding to the above functions.

In a fourth aspect, a display device is provided, and the display device obtains a module, a processing module and a display module. Among them, the obtaining module is used to obtain the extended display identification data EDID processing capability of the video source device; the obtaining module is also used to receive the first video from the video source device when the EDID processing capability of the video source device supports parsing the extended EDID. A video data; the extended EDID is used to indicate that the receiving resolution is the first resolution and the frame rate is the first frame rate video data; the resolution of the first video data is the first resolution, and the frame rate of the first video data is The first frame rate; the first frame rate is twice the first refresh rate; the processing module is used to adjust the resolution of the first video data received by the acquisition module from the first resolution to the second resolution to obtain Second video data; the second horizontal pixel value of the second resolution is the same as the third horizontal pixel value of the third resolution, and the second vertical pixel value of the second resolution is equal to the third vertical pixel value of the third resolution Half; the third resolution is the resolution of the display device of the display device; the bandwidth demand value of the second video data is less than or equal to the maximum bandwidth supported by the data receiving interface of the screen driver board TCON of the display device; the processing module is also used for the second Each row of pixels in each video frame of the video data is copied, so that the resolution of the second video data is adjusted from the second resolution to the third resolution to obtain the third video data; the display module is used for simultaneous scanning The third video data obtained by the processing module is displayed in two rows of pixels.

In a fifth aspect, a display device is provided, including: a processor and a memory; the memory is used to store computer-executable instructions, and when the first device is running, the processor executes the computer-executable instructions stored in the memory, so that The first device executes the display method described in any one of the above second aspects.

In the sixth aspect, there is provided a computer-readable storage medium, the computer-readable storage medium stores instructions, and when it is run on a computer, the computer can execute the display method described in any one of the above-mentioned second aspects .

In a seventh aspect, there is provided a computer program product containing instructions, which, when run on a display device, enables the display device to execute the display method described in any one of the above-mentioned second aspects.

In an eighth aspect, an apparatus (for example, the apparatus may be a chip system) is provided, and the apparatus includes a processor configured to support a display device to implement the functions involved in the above second aspect. In a possible design, the device further includes a memory, and the memory is used for storing necessary program instructions and data of the display device. When the device is a system-on-a-chip, it may consist of chips, or may include chips and other discrete devices.

Based on the technical solution provided by the embodiment of the present application, when the display screen of the display device itself supports the third resolution and the refresh rate is the first refresh rate, considering that the screen driver board that controls the display to receive data The highest bandwidth supported by the data receiving interface is the bandwidth corresponding to the video data whose resolution is the third resolution and the frame rate is the first frame rate. Based on this, in order to enable the display screen of the display device to display video data with a higher frame rate (for example, a frame rate twice the first refresh rate) more smoothly without losing pixel values, it is necessary to make the screen driver board The total pixel value corresponding to the resolution of the received video data (that is, the second resolution) is half of the total pixel value of the third resolution, and the frame rate of the video data received by the screen driver board is the first refresh rate double. In addition, when the display screen with the first refresh rate displays the video data of the first frame rate, it adopts a soft high-refresh technology (such as DLG or HSR), and this technology is mainly for each row of pixels in each video frame Special processing (scanning two lines at the same time) is performed to achieve the purpose of doubling the scanning speed, so that the display screen with the first refresh rate can display video data at the first frame rate. Therefore, in the embodiment of the present application, the second horizontal pixel value of the second resolution can be made the same as the third horizontal pixel value of the third resolution, and the second vertical pixel value of the second resolution can be the same as that of the third resolution half of the third vertical pixel value of the rate.

Based on the foregoing description, in the technical solution of the embodiment of the present application, in order for the screen driver board to receive video data with a resolution of the third resolution and a frame rate of the first frame rate, it is necessary to enable the display device to obtain video data from the video source device. The frame rate of the first video data is the first frame rate. At the same time, due to the limitation of video resolution specifications in practice, there is a certain difference between the resolution (for example, the first resolution) and the second resolution of the first video data provided by the video source device to the display device. Based on this, when the display device obtains the first video data, it needs to adjust the resolution of the first video data, so as to obtain the second video data and transmit it to the screen driver board, so that the screen driver board Data control display for display.

Further, in practice, when the video source device sends the first video data to the display device, it needs to analyze and read the EDID in the display device to determine what parameters (frame rate and resolution) video data to send to the display device. However, the existing EDID can only define the parameters of the lower frame rate (that is, the third resolution, such as 120 Hz). Therefore, in order to enable the video source device to send video data at the first frame rate to the display device, it is necessary to configure the extended EDID in the display device in advance, and the extended EDID can indicate that the receiving resolution is the first resolution and the frame rate is the first Frame rate of video data. Afterwards, when the video source device can resolve the extended EDID, the display device can receive the first video data, and then execute the subsequent display process.

To sum up, because of the technical solution provided by the embodiment of the present application, when the first video data of the first frame rate is finally displayed, it can be displayed by dual-line simultaneous scanning without losing any pixel. Because during the entire display process, the pixels in the first video data are not updated at any time, and the final display frame rate is also guaranteed, so that the first frame can be displayed smoothly and clearly with a display screen with a lower refresh rate (that is, the first refresh rate). The effect of high-speed video data improves the user experience.

Description of drawings

FIG. 1 is a schematic diagram of scanning of a DLG technology provided by an embodiment of the present application;

Fig. 2 is a scanning schematic diagram of an HSR technology provided by the embodiment of the present application;

FIG. 3 is a schematic diagram of different frame rate effects provided by the embodiment of the present application;

Fig. 4 is a schematic flow chart of a display method provided by the prior art;

FIG. 5 is a schematic diagram of an OSD picture and video data fusion provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of improving video resolution by an HSR technology provided in an embodiment of the present application;

FIG. 7 is a schematic diagram of an example of a display method provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a display system provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a control device provided in an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a display device provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of a software architecture of a display device provided by an embodiment of the present application;

FIG. 12 is a first schematic flow diagram of a display method provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of the EDID and the extended EDID provided by the embodiment of the present application;

FIG. 14 is a schematic flow diagram II of a display method provided by the embodiment of the present application;

FIG. 15 is a schematic flow diagram III of a display method provided by the embodiment of the present application;

FIG. 16 is a schematic flowchart 4 of a display method provided by the embodiment of the present application;

Fig. 17 is a schematic flow diagram five of a display method provided by the embodiment of the present application;

FIG. 18 is a schematic flow diagram VI of a display method provided by the embodiment of the present application;

FIG. 19 is a schematic flow diagram VII of a display method provided by the embodiment of the present application;

Fig. 20 is a schematic diagram of an example of another display method provided by the embodiment of the present application;

FIG. 21 is a schematic structural diagram of a third video provided by the embodiment of the present application;

Fig. 22 is a schematic flowchart eighth of a display method provided by the embodiment of the present application;

FIG. 23 is a schematic flowchart of a display method provided in the embodiment of the present application (9);

FIG. 24 is a tenth schematic flowchart of a display method provided by the embodiment of the present application;

FIG. 25 is a schematic structural diagram of another display device provided by an embodiment of the present application;

FIG. 26 is a schematic structural diagram of another display device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose and implementation of the application clearer, the following will clearly and completely describe the exemplary implementation of the application in conjunction with the accompanying drawings in the exemplary embodiment of the application. Obviously, the described exemplary embodiment is only the present application. Claim some of the examples, not all of them.

It should be noted that the brief description of the terms in this application is only for the convenience of understanding the implementations described below, and is not intended to limit the implementations of this application. These terms are to be understood according to their ordinary and usual meaning unless otherwise stated.

The terms "first", "second", and "third" in the description and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean limiting specific sequential or sequential unless otherwise noted. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprising" and "having" and any variations thereof in this application are intended to cover but not exclusively include, for example, a product or device comprising a series of components need not be limited to all components explicitly listed, but may Includes other components not expressly listed or inherent to those products or equipment.

The term "and/or" in this application is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and A and B exist alone. There are three cases of B. In addition, the character "/" in the present disclosure generally indicates that the contextual objects are an "or" relationship.

Based on the exemplary embodiments described in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the appended claims of this application. In addition, although the disclosures in this application are introduced as exemplary one or several examples, it should be understood that each aspect of these disclosures can also independently constitute a complete implementation. It should be noted that the brief description of the terms in this application is only for the convenience of understanding the implementations described below, and is not intended to limit the implementations of this application. These terms are to be understood according to their ordinary and usual meaning unless otherwise stated.

First of all, the terms involved in this application are explained as follows:

Frame rate: that is, the frame rate, which is the frequency (rate) at which bitmap images in units of frames appear continuously on the display screen. Frame rate may also be called frame frequency and is expressed in hertz (Hz).

Refresh rate: that is, the refresh rate, which refers to the speed at which the screen refreshes. The refresh rate generally mentioned usually refers to the vertical refresh rate. The vertical refresh rate indicates how many times the screen image is redrawn per second, that is, the number of screen refreshes per second, in Hz (Hertz). The higher the refresh rate, the better, the more stable the image, the more natural and clear the image display, and the less impact on the eyes. The lower the refresh rate, the more flickering and jittery the image will be, and the faster your eyes will tire.

HDMI: high definition multimedia interface, high-definition multimedia interface. It is an all-digital video and sound sending interface, which can send uncompressed audio and video signals. HDMI can be used in equipment such as set-top boxes, DVD players, personal computers, televisions, game consoles, integrated amplifiers, digital audio and televisions. HDMI can send audio and video signals at the same time. Since the audio and video signals use the same wire, it greatly simplifies the installation difficulty of the system line.

In the embodiment of the present application, video data is transmitted between the video source device and the display device through HDMI. In the embodiment of this application, in order to enable the display device to receive the HDMI signal of 1920*1080@240Hz (the HDMI signal carries video data with a resolution of 1920*1080P and a frame rate of 240Hz), according to the HDMI communication The agreement stipulates that the bandwidth required for HDMI decoupling is 18Gb/s. Based on this, the HDMI interface rules mentioned in this application are at least version 2.0 or higher.

EDID: extended display identification data, extended display identification data. EDID is a standard for display identification data formulated by VESA (Video Electronics Standards Association, Video Electronics Standards Association) when developing the DDC display data channel communication protocol. EDID is stored in the DDC memory of the display. When the host device (that is, the device that provides display data to the display, if the display data is video data, the host device is the video source device) is connected to the display, the host device will pass through the DDC channel. Read the stored EDID in the DDC memory of the display to determine which parameter display data to transmit to the display.

DDC: Display Data Channel, display data channel. DDC is used by the host device to access the display memory to obtain the EDID format data in the EEPROM (electrically erasable programmable read only memory) in the display to determine the display properties of the display (such as resolution, refresh rate) , aspect ratio, etc.) information data channel.

TCON: The logic board is also called the screen driver board, the central control board, and the TCON board. The role of TCON includes processing the video data sent by the image processing unit of the display device, converting it into an electrical signal that can drive the display screen, and then directly sending it to the display screen for display. The TCON receives video data from the image processing unit through a data receiving interface (such as a v-by-one interface). The data receiving interface has different bandwidths according to different specifications. Generally, the bandwidth of the data receiving interface supports at most the bandwidth corresponding to the resolution and refresh rate supported by the display screen of the display device to which it belongs. In the embodiment of this application, in order to enable the display screen with a low refresh rate to display high frame rate video data, TCON needs to support soft high-brush technologies such as DLG technology or HSR technology, that is, through the adjustment of the gate scanning method (that is, the adjustment of the video The number of row pixels in the frame is adjusted) to achieve high frame rate video display.

DLG: The full name is dual line gate, that is, two rows of grid lines. DLG technology is to reduce the rendering accuracy of vertical pixels (or column pixels), only render odd-numbered rows (or even-numbered rows) such as 1, 3, 5, 7, and 9, and then copy the data of odd-numbered rows to 2, 4 , 6, 8, and 10 even-numbered lines are displayed. At this time, the number of refreshes required in the vertical direction is reduced by half, so the refresh time is reduced by half, so the refresh rate of the display can be increased.

Exemplarily, in the DLG technology, after copying odd-numbered rows of data, as shown in FIG. 1 , TCON controls the control circuit of the display screen to scan every two adjacent rows of gates at the same time, for example, G1 and G2 scan at the same time. G1 and G2 scan the same content. It can be seen that the principle of DLG technology is similar to that of interlaced scanning. It uses a method of scanning two repeated lines for display, which can not only save bandwidth, but also avoid the roughness of the picture caused by interlaced scanning. But there is no doubt that the repeatedly scanned interval lines should be information such as other colors. The improvement of the refresh rate through the display device through DLG technology is essentially the loss of this part of the picture content, which greatly improves the actual look and feel of the displayed picture. decline.

HSR: The full name is hardware super resolution, that is, hardware super resolution. The basic principle of HSR technology is similar to that of DLG. It also compresses vertical pixels, and only renders odd-numbered lines (or even-numbered lines), while even-numbered lines are displayed by fusing the information of two adjacent lines.

Exemplarily, in the HSR technology, after copying odd-numbered rows of data, as shown in FIG. 2 , TCON will also control the control circuit of the display screen to scan every two adjacent rows of gates at the same time, for example, G1 and G2 are scanned at the same time. However, based on HSR technology, the row pixels scanned by G2 are actually obtained after combined processing of G1 and G3. For example, the pixel value of each pixel in G2 is the weighted average of the pixel value of the corresponding (ie belonging to the same column) pixel in G1 and the pixel value of the corresponding pixel in G3. Wherein, the weight corresponding to G1 and the weight corresponding to G3 may be the same or different, depending on actual requirements. The method of obtaining the row pixels of the G2 scan by using the row pixels of the G1 scan and the row pixels of the G3 scan may be referred to as interpolation processing.

Based on this, it can be seen that compared with the DLG technology, after the even-numbered rows of pixels are fused in the screen using the HSR technology, the color and line transition of the entire screen will be more natural, and the definition will be improved accordingly. However, compared with the video data actually input by the video source device, there is also a problem of picture distortion, resulting in a decrease in video definition.

At present, HDMI (has been widely used in display devices such as televisions. Based on this, HDMI devices (ie, video source devices) can input high-frequency video data, such as 240hz high refresh rate video data, to display devices such as televisions.

Exemplarily, as shown in Figure 3, it can be seen that within a certain period of time, a video with a frame rate of 240Hz can display 9 frames of images, a video with a frame rate of 120Hz can display 5 frames of images, and a video with a frame rate of 60Hz can only display Can display 3 frames of images. It can be seen that when a video with a higher frame rate is displayed normally, more details can be reflected, and the motion picture is smoother. Therefore, users increasingly hope that a display device can display a video with a high frame rate (for example, 240 Hz). . However, since the data receiving interface (such as v-by-one cable or v-by-one interface) of the screen driver board (timing controller, TCON) in most display devices can only receive a maximum of 120hz that meets its own resolution requirements 240hz video data has exceeded the transmission bandwidth of the v-by-one cable. Therefore, in the prior art, the video data resolution is generally reduced to allow bandwidth to smoothly transmit video data to the TCON, so that the TCON can control the display screen for display.

Exemplarily, the resolution supported by the display device is 3840*2160P and the supported refresh rate is 120Hz, and the parameters of the video data input by the video source device through the HDMI interface are 3840*2160@120Hz (that is, the resolution is 3840*2160P, The frame rate is 120Hz) as an example. Referring to FIG. 4 , in the prior art, the processing and display process of the display device after receiving the video data sent by the video source device includes S1-S6:

S1. The display device receives video data from a video source device.

Wherein, the display device may specifically receive video data from the video source device through its own HDMI receiving device. Specifically, the HDMI receiving device may be called HDMI Vedio. Since the parameters of the video data indicated in the predefined EDID of the display device are the same as the parameters of the video supported by the display of the display device, the video source device will input the video data of the parameters of the video that can be displayed by the display of the display device, that is The parameter is 3840*2160@120Hz video data.

S2. The HDMI receiving device of the display device sends the video data to the prescaler, so that the prescaler adjusts the resolution of the video data to 3840*1080P.

Specifically, the prescaler can be a separate device/new product in the display device, or can be integrated in a Soc (system on chip) in the display device. The bandwidth that can be received by the data receiving interface of the screen driver board TCON of a general display is related to the specific video parameters supported by the display, that is, the bandwidth corresponding to 3840*2160@120Hz is supported. However, since the monitor here needs to display 240Hz video data, the final data receiving interface of TCON needs to receive video data whose parameters are 3840*1080@240Hz. Based on this, the prescaler can obtain 3840*1080@120Hz video data by performing row pixel halving operation on each video frame in the video data, so as to facilitate subsequent frequency multiplication to obtain 3840*1080@240Hz video data. Wherein, the row pixel halving operation may be to delete row pixels of odd rows or delete row pixels of even rows. Row Pixel Value A horizontal row of pixels in a video frame.

S3. The display device generates an OSD image.

Specifically, the OSD picture may be generated by a UI component of a display device, a GPU (graphics processing unit, graphics processor) and a frame buffer (FrameBuffer) module in sequence. Wherein, the GPU may specifically be GPU-Mali.

Among them, the OSD (on-screen display, on-screen menu adjustment method) screen is the screen of the screen menu adjustment method. OSD is applied on the display, and some special fonts or graphics are generated on the screen of the display, so that the user can get some information. It is commonly used on the display screen of home TV or personal PC computer. When the user operates the TV to change channels or adjust the volume, picture quality, etc., the TV screen will display the current status to let the user know. In order to realize the function of OSD, it is necessary to add or change the color of some pixels in the image synchronously with the image displayed on the display in real time, so that it can be combined into data that humans can recognize in the image.

In the prior art, for the convenience of integration, the specific parameters of the OSD picture generated by the display device are consistent with the parameters of the video data with reduced resolution, that is, 3840*2160@120Hz.

Of course, when the frame rate of the OSD picture and the frame rate of the video data may be different in practice, they may also be blended in proportion. For example, taking the frame rate of video data as 240 Hz and the OSD picture as 120 Hz or 60 Hz as an example, the fusion ratio can be shown in FIG. 5 .

Wherein, if the OSD picture is 120 Hz, when it is fused with video data, one OSD picture frame is fused with video frames in two pieces of video data. If the OSD picture is 60Hz, when it is fused with video data, one OSD picture frame is fused with video frames in four pieces of video data. Of course, in practice, there may also be other fusion methods according to the difference in the frame rates of the two.

S4. The display device fuses the OSD picture and the video data input by the video source device, and uses memc (motion estimate/motion compensation, motion estimation/motion compensation) technology to frequency-multiply the fused video data to obtain the undetermined video.

Wherein, the specific parameters of the video to be determined may be 3840*1080@240Hz. Among them, the frequency doubling of memc technology can only improve the fluency of the fused video data to a certain extent, but the added video frames are only copied frames, so the overall improvement of fluency is not ideal.

Specifically, step S4 may be performed by a display unit in the display device.

S5. The display device uses the undetermined video to generate the target video, and simultaneously scans two rows of pixels for each video frame in the target video using the soft high refresh technology, and displays it.

Wherein, since the resolution supported by the display device itself is 3840*2160P, the specific parameters of the target video here may be 3840*2160@240Hz.

Specifically, the target video here can be obtained by using HSR technology (a kind of soft high-swipe technology) to determine each row of pixels in the video frame of the undetermined video as an odd row (or an even row), and then process it according to a specific interpolation processing method. of. Exemplarily, as shown in FIG. 6 , the pixels of the even-numbered row in each video frame of the target video are obtained from the row pixels of two adjacent odd-numbered rows. Specifically, the pixel value of each pixel in the row pixels of the even-numbered row is obtained by weighted average of the pixel values of the corresponding pixels in the row pixels of the two adjacent odd-numbered rows. The row pixels of the odd rows in each video frame of the target video are the row pixels of the corresponding video frame in the undetermined video. That is to say, each video frame of the target video includes all the row pixels in the corresponding video frame in the undetermined video.

Based on the aforementioned steps, the video data displayed on the display screen here is specifically 3840*2160@240Hz video data, but compared with the 3840*2160@120Hz video data input from the video source device to the display device, it only effectively displays For 3840*1080@240Hz (or 4K1K@240H) video data, half of the pixels are missing or wrong, so the final video effect is distorted and the definition is not good enough. At the same time, since half of the video frames in the finally presented video data are obtained by frequency doubling, there is also a lack of fluency.

In summary, it can be seen that in the prior art, since the data receiving interface (such as a v-by-one cable or v-by-one interface) of the screen driver board (timing controller, TCON) in most display devices is the largest It can only receive 120hz video data that meets its own resolution requirements, and 240hz video data has exceeded the transmission bandwidth of the v-by-one cable. Therefore, in the prior art, the video data resolution is generally reduced to allow bandwidth to smoothly transmit video data to the TCON, so that the TCON can control the display screen for display. But in this way, the clarity of the video will be much lower than that sent by the video source device. Further, since the refresh rate supported by the hardware of the display screen of the TV itself is 120hz, it is necessary to adopt a soft high refresh technology (such as hardware superresolution (hardware superresolution, HSR) or dual line gate (DLG) technology ), so that the display screen can achieve a refresh rate of 240hz to display 240hz video. However, the soft high refresh technology will reduce the number of pixels in the vertical direction in the video data, resulting in a decrease in the definition of the final video. In addition, if the video data input by the video source device itself is 120hz, then in order to present the display effect of 240hz, it is necessary to use motion estimation/motion compensation technology (motion estimate/motion compensation, MEMC) to multiply the video frequency of 120hz to 240hz. However, this technology will cause a large number of repeated video frames in the final displayed video, which is not smooth enough in terms of perception.

In view of the above problems, the present application provides a display method, which is applied to a display device. In this technical solution, it is considered that the maximum bandwidth supported by the data receiving interface of the screen driver board that controls the display to receive data is the bandwidth corresponding to video data with a resolution of the third resolution and frame rate of the first frame rate. Based on this, in order to enable the display screen of the display device to display video data with a higher frame rate (for example, a frame rate twice the first refresh rate) more smoothly without losing pixel values, it is necessary to make the screen driver board The total pixel value corresponding to the resolution of the received video data (that is, the second resolution) is half of the total pixel value of the third resolution, and the frame rate of the video data received by the screen driver board is the first refresh rate double. In addition, when the display screen with the first refresh rate displays the video data of the first frame rate, it adopts a soft high-refresh technology (such as DLG or HSR), and this technology is mainly for each row of pixels in each video frame Special processing (scanning two lines at the same time) is performed to achieve the purpose of doubling the scanning speed, so that the display screen with the first refresh rate can display video data at the first frame rate. Therefore, in this technical solution, the second horizontal pixel value of the second resolution can be made the same as the third horizontal pixel value of the third resolution, and the second vertical pixel value of the second resolution can be the same as that of the third resolution half of the third vertical pixel value of the rate.

In addition, in the technical solution provided by this application, in order for the screen driver board to receive the video data with the third resolution and the first frame rate, it is necessary to make the display device acquire the first video data from the video source device. The frame rate of the video data is the first frame rate. At the same time, due to the limitation of video resolution specifications in practice, there is a certain difference between the resolution (for example, the first resolution) and the second resolution of the first video data provided by the video source device to the display device. Based on this, when the display device obtains the first video data, it needs to adjust the resolution of the first video data, so as to obtain the second video data and transmit it to the screen driver board, so that the screen driver board Data control display for display.

Further, in practice, when the video source device sends the first video data to the display device, it needs to analyze and read the EDID in the display device to determine what parameters (frame rate and resolution) video data to send to the display device. However, the existing EDID can only define the parameters of the lower frame rate (that is, the third resolution, such as 120 Hz). Therefore, in order to enable the video source device to send video data at the first frame rate to the display device, it is necessary to configure the extended EDID in the display device in advance, and the extended EDID can indicate that the receiving resolution is the first resolution and the frame rate is the first Frame rate of video data. Afterwards, when the video source device can resolve the extended EDID, the display device can receive the first video data, and then execute the subsequent display process.

Exemplarily, as shown in FIG. 7 , taking a display device supporting a resolution of 3840*2160P and a supported refresh rate of 120Hz as an example, compared to the prior art corresponding to FIG. The extended EDID declares that it receives 1920*1080@240Hz video data. Then the video source device can send the first video data of 1920*1080@240Hz to the HDMI Vedio of the display device. Afterwards, based on the resolution requirements of the display screen of the display device (requirement 3840*2160P) and the bandwidth display of TCON (the bandwidth corresponding to the maximum allowable 3840*1080@240Hz), the image processing unit in the display device can then convert the first video The resolution of the data is increased to 3840*1080P, that is, the second video data with a parameter of 3840*1080@240Hz is obtained. Afterwards, the display device (specifically, it may be a display unit of the display device) may fuse the OSD picture with the second video data to obtain the fused second video data. Wherein, the generation of the OSD screen is the same as the prior art shown in FIG. 4 .

Then, the display device (specifically, it may be a display sending unit of the display device) may transmit the fused second video data to the TCON. Based on the resolution requirements of the display screen, TCON can adjust the resolution of the fused second video data to 3840*2160P, that is, obtain the third video data whose parameters are 3840*2160@240Hz. Finally, some functions in the soft high refresh technology (HSR or DLG) can be used to simultaneously scan two rows of pixels in the video frame and control the display on the display screen.

It can be seen that in the technical solution provided by the present application, when the first video data of the first frame rate is finally displayed, it can be displayed by dual-line simultaneous scanning without losing any of its pixels. Because during the entire display process, the pixels in the first video data are not updated at any time, and the final display frame rate is also guaranteed, so that the first frame can be displayed smoothly and clearly with a display screen with a lower refresh rate (that is, the first refresh rate). The effect of high-speed video data improves the user experience.

The display method provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 8 is a schematic diagram showing a composition structure of a display system applied with a display method according to an exemplary embodiment. Referring to FIG. 8 , the voice recognition system includes a display device 01 and a video source device 02 .

Wherein, the user can control the display device 01 through the mobile terminal 100 and the control device 200 . The control device 200 may be a remote controller, and the communication between the remote controller and the display device 01 includes infrared protocol communication, bluetooth protocol communication, wireless or other wired methods to control the display device 01 . The user can control the display device 01 by inputting user instructions through buttons on the remote control, voice input, control panel input, etc. In addition, the display device 01 can also directly receive the user's voice input or voice command through its internally configured module for acquiring voice commands (such as MIC). In some embodiments, tablets, computers, laptops, and other smart devices can also be used to control the display device 01 .

In some embodiments, the same or matching software applications can be installed on the mobile terminal 100 and the display device 01 , so as to realize connection and communication through network protocols, and then realize the purpose of one-to-one control operation and data communication. In this case, the audio and video content displayed on the mobile terminal 100 may also be transmitted to the display device 01 to implement a synchronous display function.

Data communication between the display device 01 and the server 02 may be performed in a limited or wireless communication manner. The server 02 can provide a variety of content and interactions to the display device 01. For example, the server 02 can store the preset speech recognition model and preset character error correction rules that need to be used in the display method provided by the embodiment of the application, so that the server 02 The capability of speech recognition may be provided to the display device 01 . In other words, the server 02 can cooperate with the display device 01 to implement a voice recognition solution.

Exemplarily, in the embodiment of the present application, the display device may have various implementation forms, for example, it may be a TV, a smart TV, a laser projection device, a monitor, an electronic bulletinboard, an electronic desktop Table) and other display devices that can perform voice input. The embodiment of the present application does not limit the specific form of the display device here. In the embodiment of the present application, the display device is a TV set as an example for schematic illustration.

Exemplarily, in the embodiment of the present application, the video source device 02 may have a device capable of providing video data with an HDMI interface, such as a set-top box, a PC (personal computer, personal computer) device, and the like. In the embodiment of the present application, the video source device 02 can determine the specific parameters of the video data provided to the display device, such as resolution and frame rate, after reading the EDID in the display device 01 .

FIG. 9 exemplarily shows a configuration block diagram of a possible control device 200 . As shown in FIG. 9 , the control device 200 includes a controller 210 , a communication interface 230 , a user input/output interface 240 , a memory, and a power supply. The control device 200 can receive the user's input operation instructions (such as voice instructions), and convert the operation instructions into instructions that the display device 01 can recognize and respond to, so as to act as an intermediary interaction between the user and the display device 200 .

By way of example, taking the display device as an example of a television, FIG. 10 shows a schematic structural diagram of a display device 01 provided in an embodiment of the present application.

As shown in Figure 10, the display device 01 includes a tuner and demodulator 110, a communicator 120, a detector 130, an external device interface 140, a controller 150 (or called a processor 150), a display 160, an audio output interface 170, a memory, a power supply At least one of a power supply and a user interface.

In some embodiments the controller includes a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.

The display 160 includes a display screen component for presenting a picture, and a drive component for driving image display, for receiving an image signal output from the controller, for displaying video content, image content and a menu control interface component, and a user control user interface (Use Interface, UI).

The display 160 can be a liquid crystal display, an OLED display, and a projection display, and can also be a projection device and a projection screen.

The communicator 120 is a component for communicating with external devices or servers according to various communication protocol types. For example, the communicator may include at least one of a Wifi module, a Bluetooth module, a wired Ethernet module and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display device 01 can establish transmission and reception of control signals and data signals with the external control device 200 or the video source device 02 through the communicator 120 .

The user interface can be used to receive control signals from the control device 200 (such as: an infrared remote controller, etc.).

The detector 130 is used to collect signals of the external environment or interaction with the outside. For example, the detector 130 includes a light receiver, which is a sensor for collecting ambient light intensity; or, the detector 130 includes an image collector, such as a camera, which can be used to collect external environmental scenes, user attributes or user interaction gestures, or , the detector 130 includes a sound collector, such as a microphone, for receiving external sound.

The external device interface 140 may include but not limited to the following: high-definition multimedia interface (HDMI), analog or data high-definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, etc. any one or multiple interfaces. It may also be a composite input/output interface formed by the above-mentioned multiple interfaces.

The tuner demodulator 110 receives broadcast TV signals through wired or wireless reception, and demodulates audio and video signals, such as EPG data signals, from multiple wireless or cable broadcast TV signals.

In some embodiments, the controller 150 and the tuner-demodulator 110 may be located in different split devices, that is, the tuner-demodulator 110 may also be located in an external device of the main device where the controller 150 is located, such as an external set-top box wait.

The controller 150 controls the work of the display device and responds to user operations through various software control programs stored in the memory. The controller 150 controls the overall operation of the display device 01 . For example, in response to receiving a user command for selecting a UI object to be displayed on the display 160, the controller 150 may perform an operation related to the object selected by the user command.

In some embodiments, the controller includes a central processing unit (Central Processing Unit, CPU), a video processor, an audio processor, a graphics processing unit (Graphics Processing Unit, GPU), RAM (Random AccessMemory, RAM), ROM (Read-Only Memory, ROM), at least one of the first interface to the nth interface for input/output, a communication bus (Bus), and the like.

The user may input a user command through a graphical user interface (GUI) displayed on the display 160, and the user input interface receives the user input command through the graphical user interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through a sensor to receive the user input command.

"User interface" is a medium interface for interaction and information exchange between application programs or operating systems and users, which realizes the conversion between the internal form of information and the form acceptable to users. The commonly used form of user interface is the graphical user interface (Graphic User Interface, GUI), which refers to the user interface related to computer operation displayed in a graphical way. It can be an icon, window, control and other interface elements displayed on the display screen of the display device, where the control can include icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, widgets, etc. At least one of the view's interface elements.

It can be understood that, generally speaking, the realization of the functions of the display device requires the cooperation of software in addition to the support of the above hardware.

In some embodiments, taking the Android system as an example of the operating system used by the display device 01, as shown in FIG. (referred to as "application layer"), application framework (Application Framework) layer (referred to as "framework layer"), Android runtime (Android runtime) and system library layer (referred to as "system runtime layer"), and the kernel layer.

In some embodiments, there is at least one application program running in the application program layer, and these application programs can be window (Window) program, system setting program or clock program etc. that come with the operating system; they can also be developed by third-party developers. s application. In summary of the embodiment of this application, the application layer may include a voice recognition application, which is specifically used to call the communication interface of the display device 01 to send the voice data received by the display device 01 to the server 02 for recognition. During specific implementation, the application program packages in the application program layer are not limited to the above examples.

The framework layer provides application programming interface (application programming interface, API) and programming framework for the application. The application framework layer includes some pre-defined functions or services. The application framework layer is equivalent to a processing center, which decides to make the applications in the application layer take actions. Through the API interface, the application program can access the resources in the system and obtain the services of the system during execution.

As shown in Figure 11, the application framework layer in the embodiment of the present application includes managers (Managers), content providers (Content Provider), view system (View system), etc., wherein the manager includes at least one of the following modules: activity The Activity Manager is used to interact with all activities running in the system; the Location Manager is used to provide system services or applications with access to the system location service; the Package Manager is used to It is used to retrieve various information related to the application package currently installed on the device; the Notification Manager is used to control the display and clearing of notification messages; the Window Manager is used to manage the icons on the user interface, Windows, toolbars, wallpapers and desktop widgets.

In some embodiments, the activity manager is used to manage the life cycle of each application program and the general navigation back function, such as controlling the exit, opening, back, etc. of the application program. The window manager is used to manage all window programs, such as obtaining the size of the display screen, judging whether there is a status bar, locking the screen, capturing the screen, controlling the change of the display window (such as reducing the display window, shaking the display, distorting the display, etc.), etc.

In some embodiments, the system runtime layer provides support for the upper layer, that is, the framework layer. When the framework layer is used, the Android operating system will run the C/C++ library contained in the system runtime layer to realize the functions to be realized by the framework layer.

In some embodiments, the kernel layer is a layer between hardware and software. The kernel layer contains at least one of the following drivers: audio driver, display driver, Bluetooth driver, camera driver, WIFI driver, USB driver, HDMI driver, sensor driver (such as fingerprint sensor, temperature sensor, pressure sensor, etc.), MIC driver and power drives.

The video data involved in this application may be data authorized by the user or fully authorized by all parties.

The methods in the following embodiments can be implemented in a display device having the above hardware structure and software structure. In the following embodiments, the display method provided by the embodiments of the present application will be described by taking the display device as an example of a television.

Referring to FIG. 12 , an embodiment of the present application provides a display method, which is applied to a display device, and the refresh rate of a display of the display device is a first refresh rate. The method may include S121-S125:

S121. The television obtains the extended display identification data EDID processing capability of the video source device.

When the TV needs to play video in response to the user's playback operation, the electronic machine requests the video source device to send video data to the TV. In the embodiment of the present application, the video source device is an HDMI device with an HDMI interface.

Before the video source device sends the video data to the TV, it needs to specify which parameters (resolution and frame rate) of the video data the display of the TV specifically supports. Specifically, the video source device needs to perform DDC interaction with the TV through the HDMI interface to analyze the EDID stored in the TV to obtain the resolution and frame rate of the video data supported by the TV. Wherein, the EDID may specifically be stored in a DDC storage area in the television.

In the display method provided by the embodiment of the present application, the main purpose is to display video data with a higher frame rate, for example, 240 Hz video data, by using a TV set with a refresh rate of the display screen at the first refresh rate. However, as shown in (a) of FIG. 13 , the conventional EDID is 256 bytes, and there are two expansion units, each of which is 128 bytes. Among them, one extension unit is the basic data block Base Block, and the other extension unit is the Consumer Electronics Association block CTA Block.

The traditional 256-byte EDID only supports video data that declares that the display supports a frame rate corresponding to the first refresh rate (for example, 120 Hz). The video data of the first resolution (eg 1920*1080P) and the first frame rate (eg 240Hz) is not the native HDMI resolution and frame rate defined by the HDMI Association, so it needs to be declared in the traditional EDID through the displayID protocol. For this, it is necessary to ensure that the HDMI interface supports parsing the extended EDID, that is, the TV will store the extended EDID in the DDC storage area in advance. The extended EDID is used to indicate that the video data whose resolution is the first resolution and the frame rate is the first frame rate is received; the resolution of the first video data is the first resolution, and the frame rate of the first video data is the first frame rate ; The first frame rate is twice the first refresh rate. Exemplarily, the first resolution may be 1920*1080P, and the first frame rate may be 240Hz. Of course, in practice, the first resolution and the first frame rate may be determined according to the third resolution and the first refresh rate supported by the display screen of the display device and actual requirements. For example, if the third resolution is 1920*1080P, then the first resolution may be 960*540P; if the first refresh rate is 60Hz, then the first frame rate may be 120Hz. This application does not specifically limit this.

The extended EDID is shown in (b) in Figure 13, which has 512 bytes and four extension units. In addition to the two extension units included in the traditional EDID, the extended EDID includes the extension block mapping table EXT-Block Map and the displayID extension block. The two extension units in multiple places can be used to declare that the display supports video data of the first resolution and the first frame rate.

However, many HDMI devices currently on the market may not support extended EDID parsing and reading, so in order to avoid this problem, after a display device is connected to a video source device, it needs to obtain the EDID processing capability of the video source device. Then it is determined whether the subsequent display method can be implemented. The EDID processing capability is used to indicate whether the video source device supports parsing extended EDID or traditional EDID.

In practice, for the old video source device connected to the TV before, because the old video source device and the TV have already transmitted video data to each other with a high probability, the EDID data in the TV must be able to be replaced by the old video source Device resolution read. For old and old video source equipment, how to transmit video data in the past is still how to transmit it now, without any change. Therefore, if the video source device is an old video source device, it is not necessary to judge whether it supports parsing and reading of the extended EDID. It is only necessary to judge the EDID processing capability of the newly connected video source device. Based on this, referring to FIG. 12 and referring to FIG. 14, before S121, the method further includes S120:

S120. The television judges whether the video source device is a newly connected device.

If the TV determines that the video source device is a newly connected device, then execute S121; if the TV determines that the video source device is a newly connected device, it can repeatedly determine whether to If it is a newly connected device, execute S120; or, the process ends.

S122. When the EDID processing capability of the video source device supports parsing the extended EDID, the television receives the first video data from the video source device.

Wherein, the resolution of the first video data is the first resolution, the frame rate of the first video data is the first frame rate, and the first frame rate is twice the first refresh rate.

If the EDID processing of the video source device supports parsing the extended EDID, the video source device may send the first video data to the TV after parsing the extended EDID stored in the TV. At the same time, the television may include the structure and content of the extended EDID, and wait for the first video data from the video source device. Specifically, the HDMIvedio in the TV can receive the first video data. In practice, the video source device sends a timing signal (or HDMI signal) to the TV through the HDMI interface, and the signal carries the first video data.

In some embodiments, when the EDID processing capability of the video source device does not support parsing extended EDID, it is considered that the EDID processing capability of the video source device supports resolving traditional EDID. At this time, in order to make the video source device can smoothly To send video data to the display device, you need to modify your EDID to a traditional EDID. Based on this, referring to FIG. 14 and referring to FIG. 15, the method further includes S1501-S1503:

S1501. In the case that the EDID processing capability of the video source device does not support parsing the extended EDID, the television modifies the extended EDID to the EDID.

Specifically, the television may modify the extended EDID stored by itself as shown in (b) in FIG. 13 to a traditional EDID as shown in (a) in FIG. 13 . The traditional EDID can declare that the receiving resolution is the preset resolution and the frame rate is the video data of the preset frame rate. Exemplarily, the preset resolution is any feasible resolution, and the preset frame rate is a frame rate less than or equal to 120 Hz.

S1502. The TV triggers the video source device to initiate DDC interaction again.

After modifying the extended EDID to EDID, in order to make the video source device send video data to the TV, the video source device can initiate DDC interaction again to parse and read the EDID, so as to determine what parameters to send to the TV ( video data including resolution and frame rate).

S1503. The television receives video data from the video source device.

Based on the above technical solution corresponding to S1501-S1503, the extended EDID in the TV can be modified in time when the video source device cannot resolve the extended EDID, and thus cannot send the first video data to the TV. Thus, the video source device can smoothly send video data to the TV for playback, avoiding unsatisfied user's video viewing requirements, and improving user experience.

In some embodiments, for a certain type of video source device, it can be determined with certainty that it has the ability to resolve the EDID, such as a PC device. For such devices as video devices, other means are required to determine the EDID processing capability of the video source device. Based on this, referring to FIG. 15 and referring to FIG. 16, S122 may specifically include S1601-S1607:

S1601. The television judges whether the type of the video source device is the first type of device.

Wherein, the first type of device is specifically a device that must have an EDID processing capability that supports parsing the extended EDID.

If the TV determines that the type of the video source device is the first type of device, it can directly determine that the EDID processing capability of the video source device supports parsing the extended EDID, and while maintaining the structure and content of the extended EDID, it can receive information from the video source. The first video data of the device, that is, execute S1602.

If the television determines that the type of the video source device is not the first type of device, it may determine its EDID processing capability after acquiring the characteristic parameters of the video source device, and execute S1603 and S1604.

Of course, the above step S1601 may not exist in practice, and the TV may execute S1602 when it is determined that the type of the video source device is the first type of device, and execute S1602 when it is determined that the type of the video source device is not the first type of device. S1603 is enough.

S1602. The television determines that the EDID processing capability of the video source device supports parsing the extended EDID, and receives the first video data from the video source device.

Execute S123 after S1602.

S1603. The television acquires characteristic parameters of the video source device.

Exemplarily, the feature parameters may include detailed type and model. The detailed type may be the manufacturer and device name of the video source device.

Because the special parameters of the video source device can be recognized and analyzed by the TV only if the video source device is qualified or a standard product, it is necessary to determine whether the characteristic parameters can be parsed before determining the EDID processing capability of the video source device based on the characteristic parameters. That is, execute S1604.

S1604. The television judges whether the feature parameter of the video source device can be parsed.

If the TV determines that the characteristic parameters of the video source device can be resolved, S1605 is executed.

If the TV determines that the characteristic parameters of the video source device cannot be parsed, the TV can determine whether the video source device can normally access the register storing the extended EDID and parse the extended EDID through the DDC communication statistics between the video source device and the TV. Therefore, it is determined whether the EDID processing capability of the video source device supports parsing the extended EDID. That is, execute S1606-S1607.

Of course, the above step S1604 may not exist in practice, and the TV may execute S1605 when it is determined that the characteristic parameters of the video source device are resolvable, and execute S1606 and S1607 when it is determined that the characteristic parameters of the video source device are not resolvable. .

S1605. When the characteristic parameters of the video source device can be resolved, the television determines the EDID processing capability of the video source device according to the characteristic parameters of the video source device.

Execute S1602 after S1605.

Wherein, the characteristic parameters can be parsed specifically means that the characteristic parameters obtained by the TV meet the preset standards, so the TV can be parsed smoothly, and then determine the EDID processing capability of the video source device according to the characteristic parameters of the video source device.

In a possible implementation manner, the manufacturer of the TV may store in its own server the EDID processing capabilities of all video source devices connected to the TV that it can obtain. Based on this, referring to FIG. 16 and referring to FIG. 17, S1605 may specifically include S1701-S1706:

S1701. When the characteristic parameter of the video source device can be parsed by the TV, the TV sends a query request to the server.

Wherein, the query request carries characteristic parameters of the video source device, and the query request is used to request the EDID processing capability of the video source device. The server is a server owned by the manufacturer to which the TV belongs, and may store the EDID processing capabilities of all optional video source devices connected to the TV that can be obtained by the manufacturer.

S1702. The television receives a query response from the server.

After receiving the query request, the server can query the EDID processing capability of the corresponding video source device in its own memory, generate a query response according to the query result, and send it to the TV. After receiving the query response, the television can determine whether the server has the EDID processing capability of the video source device, and whether the EDID processing capability of the video source device supports parsing the extended EDID.

S1703. The television judges whether the query response indicates that there is an EDID processing capability of the video source device and the EDID processing capability of the video source device supports parsing the extended EDID.

If the TV determines whether the query response indicates that there is an EDID processing capability of the video source device and the EDID processing capability of the video source device supports parsing the extended EDID, then the TV determines that the EDID processing capability of the video source device supports parsing the extended EDID. Afterwards, under the condition of maintaining the structure and content of the extended EDID, receive the first video data from the video source device, that is, execute S1704.

If the TV determines whether the query response indicates that the EDID processing capability of the video source device does not exist or indicates that the EDID processing capability of the video source device does not support parsing and extending EDID, it can be preliminarily determined that the EDID processing capability of the video source device may not support parsing and extension EDID. However, since the EDID processing capabilities of all optional video source devices stored in the server may not accurately cover the EDID processing capabilities of the video source device due to the capabilities of the server itself or incomplete data acquisition, the TV It is also possible to determine whether the video source device can normally access the register storing the extended EDID and resolve the extended EDID through the DDC communication statistics between the video source device and the TV, so as to determine whether the EDID processing capability of the video source device supports parsing the extended EDID . That is, execute S1705 and S1706.

Of course, the above step S1603 may not exist in practice, and the television may execute S1704 when it is determined that the query response indicates that there is an EDID processing capability of the video source device and that the EDID processing capability of the video source device supports parsing extended EDID. In the case of indicating that there is no EDID processing capability of the video source device or indicating that the EDID processing capability of the video source device does not support parsing the extended EDID, it is enough to execute S1705 and S1706.

S1704. The television determines that the EDID processing capability of the video source device supports parsing the extended EDID, and receives the first video data from the video source device.

Execute S123 after S1704.

S1705. The TV obtains the DDC communication statistics value between the video source device and the TV.

Wherein, the DDC communication statistics value is used to indicate the completion degree of the video source device reading the extended EDID of the display device. In some embodiments, the DDC communication statistics may also be referred to as a DDC communication training TAINING state.

S1706. The television judges whether the DDC communication statistic value indicates that the completion degree of reading the extended EDID of the video source device is all completed.

If the TV determines that the DDC communication statistical value indicates that the completion degree of the video source device to read the extended EDID is complete, the TV can determine that the video source device has the ability to parse the extended EDID, that is to say, the EDID processing capability of the video source device is supported. After parsing the extended EDID, the first video data from the video source device may be received while maintaining the structure and content of the extended EDID, that is, execute S1704.

If the television determines that the DDC communication statistical value indicates that the degree of completion of the video source device to read the extended EDID is not complete, the television may determine that the video source device does not have or does not fully have the ability to resolve the extended EDID, that is to say, the video source device If the EDID processing capability does not support parsing the extended EDID, the TV can change the extended EDID to EDID and instruct the video source device to send video data to the TV after initiating DDC interaction again, that is, execute S1501-S1503.

Of course, the above step S1706 may not exist in practice, and the television may execute S1704 when it is determined that the DDC communication statistics value indicates that the video source device has read the extended EDID to a complete degree; If the degree of completion of reading the extended EDID is not complete, it is enough to execute S1501-S1503.

Based on the above technical solutions corresponding to S1701-S1706, the TV can accurately determine the EDID processing capability of the video source device according to the characteristic parameters of the video source device, and provide a basis for execution of the subsequent process of displaying.

S1606. The TV obtains the DDC communication statistics value between the video source device and the TV.

Wherein, the DDC communication statistics value is used to indicate the completion degree of the video source device reading the extended EDID of the display device. In some embodiments, the DDC communication statistics may also be referred to as a DDC communication training TAINING state.

S1607. The television judges whether the DDC communication statistics value indicates that the completion degree of reading the extended EDID of the video source device is all completed.

If the TV determines that the DDC communication statistical value indicates that the completion degree of the video source device to read the extended EDID is complete, the TV can determine that the video source device has the ability to parse the extended EDID, that is to say, the EDID processing capability of the video source device is supported. After parsing the extended EDID, the first video data from the video source device may be received while maintaining the structure and content of the extended EDID, that is, execute S1602.

If the television determines that the DDC communication statistical value indicates that the degree of completion of the video source device to read the extended EDID is not complete, the television may determine that the video source device does not have or does not fully have the ability to resolve the extended EDID, that is to say, the video source device If the EDID processing capability does not support parsing the extended EDID, the TV can change the extended EDID to EDID and instruct the video source device to send video data to the TV after initiating DDC interaction again, that is, execute S1501-S1503.

Based on the above technical solutions corresponding to S1601-S1607, the TV can accurately determine the EDID processing capability of the video source device in combination with various factors, and provide a basis for execution of the subsequent process of displaying.

S123. The television adjusts the resolution of the first video data from the first resolution to the second resolution, so as to obtain the second video data.

Wherein, the second horizontal pixel value of the second resolution is the same as the third horizontal pixel value of the third resolution, and the second vertical pixel value of the second resolution is half of the third vertical pixel value of the third resolution; The third resolution is the resolution of the display of the display device; the bandwidth requirement value of the second video data is less than or equal to the maximum bandwidth supported by the data receiving interface of the screen driver board TCON of the display device.

Exemplarily, the third resolution may be 3840*2160P, and the second resolution may be 3840*1080P. Of course, in practice, the second resolution may be determined according to the third resolution supported by the display screen of the display device and actual requirements.

In the case that the display of the TV supports 3840*2160@120Hz video playback, the data receiving interface of the TCON can be v-by-one. In summary of the embodiment of the present application, the bandwidth that can be carried by the data receiving interface of the TCON is the bandwidth corresponding to the video data supported by the display. Therefore, the total pixel value of the second resolution of the second video data is equal to the total pixel value of the third resolution, and the first frame rate is twice the first refresh rate, which ensures that the second video data can be input into TCON In the data receiving interface, it is processed and displayed by Tcon.

In summary of the embodiments of this application, S123 may be executed by an image processing unit FRC (frame rate conversion) in the TV.

In a possible implementation manner, the first resolution and the second resolution may be the same. In this case, step S103 may specifically be: the television determines the first video data as the second video data.

In another possible implementation, the first vertical pixel value of the first resolution is half of the third vertical pixel value of the third resolution, and the first horizontal pixel value of the first resolution is half of the third resolution half of the third horizontal pixel value, then in conjunction with FIG. 12, referring to FIG. 18, S123 may specifically include S123A:

S123A. The television copies each column of pixels in each video frame in the first video data, so that the resolution of the first video data is adjusted from the first resolution to the second resolution.

In this way, the first video data can be quickly converted into the second video data, which facilitates the subsequent display process and improves efficiency.

In a possible implementation, the first vertical pixel value of the first resolution is half of the third vertical pixel value of the third resolution, and the first horizontal pixel value of the first resolution is half of the third resolution Half the pixel value of the third level. In combination with the existing processing flow shown in Figure 4, for the purpose of reducing process changes and reducing development difficulty, in combination with Figure 12, referring to Figure 19, S123 may specifically include S1231 and S1232:

S1231. The television copies each row of pixels of each video frame in the first video data, so that the resolution of the first video data is adjusted from the first resolution to a fourth resolution, to obtain fourth video data.

Wherein, the fourth vertical pixel value of the fourth resolution is twice the first vertical pixel value of the first resolution. Exemplarily, if the first resolution is 1920*1080P, the fourth resolution is 1920*2160P.

In summary of the embodiments of the present application, S1231 may be executed by the synthesis Remix unit in the image processing unit FRC in the TV.

S1232. The television copies each column of pixels in each video frame in the fourth video data, and deduplicates the repeated row pixels in each video frame in the fourth video data, so that the resolution of the fourth video data Adjust from the fourth resolution to the second resolution to obtain second video data.

Wherein, performing deduplication on repeated row pixels in each video frame may specifically be to delete two adjacent same row pixels in each video frame by one row.

In summary of the embodiments of the present application, S1231 may be executed by a prescaler in an image processing unit FRC in a television set.

Exemplarily, in combination with the example shown in FIG. 7 and the above technical solution corresponding to S1231-S1232, as shown in FIG. 20, after the HDMI Vedio of the display device obtains the first video data of 1920*1080@240Hz, first the Remix unit will The row pixels are copied to obtain the fourth video data of 1920*2160@240Hz. After that, the Prescaler will copy the column pixels of the video frame in the fourth video data, and deduplicate the row pixels by half, so as to obtain the second video data of 3840*1080@240Hz.

Based on the technical solutions corresponding to the above S1231 and S1232, it can firstly halve the row pixels of the video data on the basis of the existing low refresh rate display display scheme process for displaying high frame rate video. The copying is twice as original, so that after performing a halving operation (that is, row pixel deduplication), the second video data will also include all the pixels in the first video data input by the video source device. It ensures the clarity of the second video data and enables it to be transmitted into the data receiving interface of Tcon, and at the same time provides a prerequisite for the subsequent clear and smooth display of the third video.

S124. The television adjusts the resolution of the second video data from the second resolution to a third resolution to obtain third video data.

In a practicable manner, S124 may specifically include: copying each row of pixels in each video frame of the second video data, so that the resolution of the second video data is adjusted from the second resolution to the specified The third resolution is obtained to obtain the third video data.

Exemplarily, as shown in FIG. 21 , the row pixels of the even-numbered row in each video frame of the third video are obtained from the row pixels of the previous odd-numbered row. Specifically, the pixel value of each pixel in the row pixels of the even row is the pixel value of the corresponding pixel in the row pixels of the odd row above it. The row pixels of the odd rows in each video frame of the third video are the row pixels of the corresponding video frame in the second video. That is to say, each video frame of the third video includes all the pixels in the corresponding video frame in the second video, that is, includes all the pixels in the first video data. In this way, when the third video data is displayed subsequently, compared with the first video data, the definition will not be reduced.

To summarize the embodiments of the present application, S1231 may be executed by Tcon in the TV.

S125. The television displays the third video data by simultaneously scanning two rows of pixels.

Among them, S125 can be executed by Tcon in the TV; Tcon can use HSR technology or DLG technology to scan the function of scanning two lines at the same time to scan the third video data, and convert it into an electrical signal that can be displayed on the TV screen. show.

Based on the technical solution provided by the embodiment of the present application, when the display screen of the TV itself supports the display resolution of the third resolution and the refresh rate of the first refresh rate, considering that the screen driver board that controls the display to receive data The highest bandwidth supported by the data receiving interface is the bandwidth corresponding to the video data whose resolution is the third resolution and the frame rate is the first frame rate. Based on this, in order to enable the display screen of the TV to display video data with a higher frame rate (for example, a frame rate twice the first refresh rate) more smoothly without losing pixel values, it is necessary to make the screen driver board The total pixel value corresponding to the resolution of the received video data (that is, the second resolution) is half of the total pixel value of the third resolution, and the frame rate of the video data received by the screen driver board is the first refresh rate double. In addition, when the display screen with the first refresh rate displays the video data of the first frame rate, it adopts a soft high-refresh technology (such as DLG or HSR), and this technology is mainly for each row of pixels in each video frame Special processing (scanning two lines at the same time) is performed to achieve the purpose of doubling the scanning speed, so that the display screen with the first refresh rate can display video data at the first frame rate. Therefore, in the embodiment of the present application, the second horizontal pixel value of the second resolution can be made the same as the third horizontal pixel value of the third resolution, and the second vertical pixel value of the second resolution can be the same as that of the third resolution half of the third vertical pixel value of the rate.

Based on the foregoing description, in the technical solution of the embodiment of the present application, in order for the screen driver board to receive video data with a resolution of the third resolution and a frame rate of the first frame rate, it is necessary for the TV to obtain video data from the video source device. The frame rate of the first video data is the first frame rate. At the same time, due to the limitation of video resolution specifications in practice, there is a certain difference between the resolution (for example, the first resolution) and the second resolution of the first video data provided by the video source device to the television. Based on this, when the TV obtains the first video data, it needs to adjust the resolution of the first video data, so as to obtain the second video data and transmit it to the screen driver board, so that the screen driver board can adjust the resolution according to the second video data. Data control display for display.

Furthermore, in practice, when the video source device sends the first video data to the TV, it needs to analyze and read the EDID in the TV to determine what parameters (frame rate and resolution) video data to send to the TV. However, the existing EDID can only define the parameters of the lower frame rate (that is, the third resolution, such as 120 Hz). Therefore, in order for the video source device to send video data at the first frame rate to the TV, it is necessary to configure the extended EDID in the TV in advance, and the extended EDID can indicate that the receiving resolution is the first resolution and the frame rate is the first Frame rate of video data. Afterwards, when the video source device can resolve the extended EDID, the TV can receive the first video data, and then execute the subsequent display process.

To sum up, because of the technical solution provided by the embodiment of the present application, when the first video data of the first frame rate is finally displayed, it can be displayed by dual-line simultaneous scanning without losing any pixel. Because during the entire display process, the pixels in the first video data are not updated at any time, and the final display frame rate is also guaranteed, so that the first frame can be displayed smoothly and clearly with a display screen with a lower refresh rate (that is, the first refresh rate). The effect of high-speed video data improves the user experience.

In some embodiments, the video source device may be unable to provide the first video data to the TV due to various possible reasons. At this time, if the TV determines that the video data parameters (resolution and frame rate) sent by the video source device are not The winning parameters of the first video data need to be displayed according to the existing display process. Based on this, in conjunction with FIG. 17 , referring to FIG. 22 , the television determines that the EDID processing capability of the video source device supports parsing the extended EDID, and receives the first video data from the video source device (that is, S1602 and S1704) Specifically, it can include: S2201-S2204:

S2201. The television determines that the EDID processing capability of the video source device supports parsing the extended EDID, and receives a timing signal from the video source device.

Wherein, the timing signal carries video data.

S2202. The television starts a timing signal detection thread.

The timing signal detection thread may specifically be used to detect whether the resolution and frame rate of the video data carried by the timing signal are the first resolution and the first frame rate.

S2203. The television judges whether the resolution and the frame rate of the video data carried by the timing signal are the first resolution and the first frame rate respectively.

Specifically, whether the resolution and frame rate mentioned here are respectively the first resolution and the first frame rate refers to whether the resolution is the first resolution and whether the frame rate is the first frame rate.

If the TV set determines that the resolution and frame rate of the video data carried by the timing signal are the first resolution and the first frame rate respectively, it can be determined that the video source device sends the first video data to the TV set at this time, then execute S123; If the TV determines that the resolution of the video data carried by the timing signal is not the first resolution, or the frame rate of the video data carried by the timing signal is not the first frame rate, then it can determine the video sent by the video source device to the TV. If the data part is the first video data, execute S2204.

S2204. The television performs processing and displaying the video data carried by the timing signal according to a normal HSR processing flow.

Wherein, the normal HSR processing flow may be the display flow shown in FIG. 4 , which will not be repeated here.

Based on the above-mentioned technical solutions of S2201-S2204, the technical solutions provided by this application can be implemented only when the video source device actually sends the first video data that meets the requirements to the TV set. In this way, it is ensured that the technical solution provided by the present application can adopt display modes of different heights according to video data of different heights, and rationally utilize the processing resources of the television set.

In some embodiments, since the technical solution provided by the present application does not need to use the frequency doubling function of the TV set, that is, the memc function, so in conjunction with FIG. 22 , refer to FIG. 23 , between S2203 and S123, the display method Can also include S2301:

S2301. The television turns off the memc function.

Certainly, S2201 may be performed at any feasible timing in any embodiment provided in the present application, and the present application does not specifically limit this.

Based on this solution, the power consumption of the television set can be reduced and energy can be saved.

In some embodiments, before displaying the third video data, the second video data and the OSD generated by the TV should be fused first in order to make some necessary controls or symbols exist in the display interface. Based on this, referring to FIG. 23 and referring to FIG. 24, in this display method, S2401 is also included between S123 and S124:

S2401. The television fuses the OSD picture with the second video data, so as to update the second video data.

Wherein, for the specific realization of the generation of the OSD picture and the fusion with the second video data, reference may be made to the related expressions in the above-mentioned embodiments, which will not be repeated here.

In the embodiment of the present application, S2401 may be executed by the display unit in the TV.

It should be noted that the steps in all the foregoing embodiments can be freely combined according to actual needs. The examples shown in this application in conjunction with the accompanying drawings are not intended to limit the display methods provided by this application. Other possible examples should also belong to the examples provided by this application. within the scope of the high technology program.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of methods. In order to realize the above functions, it includes corresponding hardware structures and/or software modules for performing various functions. Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

The embodiments of the present application may divide the display device into functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.

Referring to FIG. 25 , an embodiment of the present application provides a display device, and the display device may include an acquisition module 241 , a processing module 252 and a display module 253 .

Specifically, the obtaining module 251 is used to obtain the extended display identification data EDID processing capability of the video source device; The first video data of the device; the extended EDID is used to indicate that the receiving resolution is the first resolution and the frame rate is the first frame rate video data; the resolution of the first video data is the first resolution, and the first video data The frame rate is the first frame rate; the first frame rate is twice the first refresh rate; the processing module 252 is used to adjust the resolution of the first video data received by the acquisition module 251 from the first resolution to the second resolution to obtain the second video data; the second horizontal pixel value of the second resolution is the same as the third horizontal pixel value of the third resolution, and the second vertical pixel value of the second resolution is the first pixel value of the third resolution Half of the three vertical pixel values; the third resolution is the resolution of the display device of the display device; the bandwidth requirement value of the second video data is less than or equal to the maximum bandwidth supported by the data receiving interface of the screen driver board TCON of the display device; processing module 252 It is also used to copy each row of pixels in each video frame of the second video data, so that the resolution of the second video data is adjusted from the second resolution to the third resolution to obtain the third video data; the display module 253 , configured to display the third video data obtained by the processing module 252 by scanning two rows of pixels at the same time.

In a possible implementation manner, the acquiring module 251 is specifically configured to: if it is determined that the video source device is of the first type, determine that the EDID processing capability of the video source device supports parsing extended EDID.

In a possible implementation, the obtaining module 251 is further specifically configured to: if it is determined that the category of the video source device is not the first type of device, then obtain the feature parameter of the video source device; if the feature parameter of the video source device can be parsed In this case, the EDID processing capability of the video source device is determined according to the characteristic parameters of the video source device.

In a possible implementation, the acquisition module 251 is also specifically configured to: send a query request to the server; the query request carries the characteristic parameters of the video source device, and the query request is used to request the EDID processing capability of the video source device; query response; if the query response indicates that there is an EDID processing capability of the video source device and indicates that the EDID processing capability of the video source device supports parsing the extended EDID, then it is determined that the EDID processing capability of the video source device supports parsing the extended EDID; if The query response is used to indicate that there is no EDID processing capability of the video source device or that the EDID processing capability of the video source device does not support parsing the extended EDID, and obtain the display data channel DDC communication statistics of the video source device; DDC communication statistics It is used to indicate the completion degree of the video source device to read the extended EDID of the display device; if the DDC TRAINING status indicates that the completion degree of the video source device to read the extended EDID of the display device is all completed, then it is determined that the EDID processing capability of the video source device is supported Parse extended EDID.

In a possible implementation manner, the acquisition module 251 is further specifically configured to: acquire the display data channel DDC communication statistical value of the video source device when the characteristic parameters of the video source device cannot be parsed; the DDC communication statistical value is used to indicate The degree of completion of the video source device to read the extended EDID of the display device; if the DDC communication statistics indicate that the degree of completion of the video source device to read the extended EDID of the display device is complete, then it is determined that the EDID processing capability of the video source device supports parsing extensions EDID.

In a possible implementation manner, the processing module 252 is specifically configured to: copy each row of pixels of each video frame in the first video data received by the acquisition module 251, so that the resolution of the first video data is reduced by the second The first resolution is adjusted to the fourth resolution to obtain the fourth video data; the fourth vertical pixel value of the fourth resolution is twice the first vertical pixel value of the first resolution; each video in the fourth video data Each column pixel of the frame is copied, and the repeated row pixels in each video frame in the fourth video data are deduplicated, so that the resolution of the fourth video data is adjusted from the fourth resolution to the second resolution, obtaining Second video data.

In a possible implementation manner, the processing module 252 is specifically configured to: copy each row of pixels in each video frame of the second video data, so that the resolution of the second video data is adjusted from the second resolution to The third resolution is to obtain the third video data.

In a possible implementation manner, the first refresh rate is 120 Hz, the first resolution is 1920*1080 progressive scanning P, the first frame rate is 240 Hz, and the third resolution is 3840*2160P.

With regard to the display device in the above embodiments, the specific manner in which each module executes operations has been described in detail in the foregoing embodiments of the display method, and will not be described in detail here.

It should be understood that the division of units or modules (hereinafter referred to as units) in the above device is only a division of logical functions, and may be fully or partially integrated into a physical entity or physically separated during actual implementation. And the units in the device can all be implemented in the form of software called by the processing element; they can also be implemented in the form of hardware; some units can also be implemented in the form of software called by the processing element, and some units can be implemented in the form of hardware.

For example, each unit can be a separate processing element, or it can be integrated in a certain chip of the device. In addition, it can also be stored in the memory in the form of a program, which is called and executed by a certain processing element of the device. Function. In addition, all or part of these units can be integrated together, or implemented independently. The processing element described here may also be referred to as a processor, and may be an integrated circuit with a signal processing capability. In the process of implementation, each step of the above method or each unit above may be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software called by the processing element.

In one example, the units in the above device may be one or more integrated circuits configured to implement the above method, for example: one or more ASICs, or, one or more DSPs, or, one or more FPGAs, Or a combination of at least two of these integrated circuit forms.

For another example, when the units in the device can be implemented in the form of a processing element scheduler, the processing element can be a general-purpose processor, such as a CPU or other processors that can call programs. For another example, these units can be integrated together and implemented in the form of a system-on-chip (SOC).

In one implementation, the units of the above apparatus for implementing each corresponding step in the above method may be implemented in the form of a processing element scheduler. For example, the device may include a processing element and a storage element, and the processing element invokes a program stored in the storage element to execute the display method described in the above method embodiments. The storage element may be a storage element on the same chip as the processing element, that is, an on-chip storage element.

In another implementation, the program for executing the above method may be stored in a storage element on a different chip from the processing element, that is, an off-chip storage element. At this point, the processing element invokes or loads a program from the off-chip storage element to the on-chip storage element, so as to invoke and execute the display method described in the above method embodiments.

Referring to FIG. 26, the embodiment of the present application also provides a display device, including a display 261; the refresh rate of the display 261 is the first refresh rate, and the resolution of the display 261 is the third resolution; the processor 262 is configured to Acquire the extended display identification data EDID processing capability of the video source device; the communicator 263 is configured to receive the first video data from the video source device when the EDID processing capability of the video source device supports parsing the extended EDID; the extended EDID It is used to indicate that the video data whose resolution is the first resolution and the frame rate is the first frame rate is received; the resolution of the first video data is the first resolution, and the frame rate of the first video data is the first frame rate; A frame rate is twice the first refresh rate; the processor 262 is also configured to adjust the resolution of the first video data from the first resolution to the second resolution to obtain the second video data; the second resolution The second horizontal pixel value of is the same as the third horizontal pixel value of the third resolution, and the second vertical pixel value of the second resolution is half of the third vertical pixel value of the third resolution; the bandwidth requirement of the second video data The value is less than or equal to the maximum bandwidth supported by the data receiving interface of the screen driver board TCON of the display device; the processor 262 is also configured to adjust the resolution of the second video data from the second resolution to the third resolution to obtain the third video data; the processor 262 is also configured to control the display 261 to display the third video data in a manner of simultaneously scanning two rows of pixels.

In a possible implementation manner, the processor 262 is specifically configured to: if it is determined that the type of the video source device is the first type of device, determine that the EDID processing capability of the video source device supports parsing the extended EDID.

In a possible implementation manner, the processor 262 is specifically configured to: if it is determined that the category of the video source device is not the first type of device, then acquire the characteristic parameters of the video source device; In this case, the EDID processing capability of the video source device is determined according to the characteristic parameters of the video source device.

In a possible implementation, the processor 262 is specifically configured to: control the communicator 263 to send a query request to the server; the query request carries the characteristic parameters of the video source device, and the query request is used to request the EDID processing capability of the video source device ; The control communicator 263 receives the query response from the server; if the query response indicates that there is an EDID processing capability of the video source device and indicates that the EDID processing capability of the video source device supports parsing the extended EDID, then determine the EDID processing of the video source device The capability is to support parsing of extended EDID; if the query response indicates that there is no EDID processing capability of the video source device or indicates that the EDID processing capability of the video source device does not support parsing of extended EDID, obtain the display data channel DDC communication statistics of the video source device value; the DDC communication statistical value is used to indicate the completion degree of the video source device to read the extended EDID of the display device; if the DDC communication statistical value indicates that the completion degree of the video source device to read the extended EDID of the display device is all completed, then determine the video source device The EDID processing capability supports parsing extended EDID.

In a possible implementation manner, the processor 262 is specifically configured to: acquire the display data channel DDC communication statistical value of the video source device when the characteristic parameter of the video source device cannot be parsed; the DDC communication statistical value is used to indicate The degree of completion of the video source device to read the extended EDID of the display device; if the DDC TRAINING status indicates that the degree of completion of the video source device to read the extended EDID of the display device is complete, then it is determined that the EDID processing capability of the video source device supports parsing the extended EDID .

In a possible implementation manner, the processor 262 is specifically configured to: copy each row of pixels in each video frame in the first video data, so that the resolution of the first video data is adjusted from the first resolution to The fourth resolution obtains the fourth video data; the fourth vertical pixel value of the fourth resolution is double the first vertical pixel value of the first resolution; each column pixel of each video frame in the fourth video data Duplication is performed, and repeated row pixels in each video frame in the fourth video data are deduplicated, so that the resolution of the fourth video data is adjusted from the fourth resolution to the second resolution, and the second video data is obtained.

In a possible implementation manner, the processor 262 is specifically configured to: copy each row of pixels in each video frame of the second video data, so that the resolution of the second video data is adjusted by the second resolution For said third resolution, third video data is obtained.

In a possible implementation manner, the first refresh rate is 120 Hz, the first resolution is 1920*1080 progressive scanning P, the first frame rate is 240 Hz, and the third resolution is 3840*2160P.

The embodiment of the present application also provides a display device, and the display device may include: a display screen, a memory, and one or more processors. The display screen, memory and processor are coupled. The memory is used to store computer program code comprising computer instructions. When the processor executes the computer instructions, the display device can execute various functions or steps performed by the display device (such as a television) in the above method embodiments.

For example, an embodiment of the present application further provides a chip, which can be applied to the above-mentioned display device or server. The chip includes one or more interface circuits and one or more processors; the interface circuits and processors are interconnected through lines; the processor receives and executes computer instructions from the memory of the display device through the interface circuits, so as to realize the method described in the above embodiment Methods.

The embodiment of the present application also provides a computer-readable storage medium on which computer program instructions (or called instructions) are stored. When the computer program instructions are executed by the display device, the display device can realize the above display method.

An embodiment of the present application further provides a computer program product, including computer instructions for running the above-mentioned display device, and when the computer program product runs on the display device, the display device can implement the above-mentioned display method.

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned functions can be allocated according to needs It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be Incorporation or may be integrated into another device, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may be one physical unit or multiple physical units, that is, it may be located in one place, or may be distributed to multiple different places . Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on such an understanding, the essence of the technical solutions of the embodiments of the present application or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of software products, such as programs. The software product is stored in a program product, such as a computer-readable storage medium, and includes several instructions to make a device (which may be a single-chip microcomputer, a chip, etc.) or a processor (processor) execute all of the methods described in various embodiments of the present application. or partial steps. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.

The above is only a specific implementation of the application, but the protection scope of the application is not limited thereto, and any changes or replacements within the technical scope disclosed in the application should be covered within the protection scope of the application . Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (10)

1. A display device, characterized in that the display device comprises: A display; the refresh rate of the display is a first refresh rate, and the resolution of the display is a third resolution; A processor configured to acquire the extended display identification data EDID processing capability of the video source device; The communicator is configured to receive the first video data from the video source device when the EDID processing capability of the video source device supports parsing the extended EDID; the extended EDID is used to indicate that the receiving resolution is the first Video data with a resolution and a frame rate of a first frame rate; the resolution of the first video data is the first resolution, and the frame rate of the first video data is a first frame rate; the first frame The rate is twice the first refresh rate; The processor is also configured to adjust the resolution of the first video data from the first resolution to a second resolution to obtain second video data; the second horizontal pixel of the second resolution The value is the same as the third horizontal pixel value of the third resolution, and the second vertical pixel value of the second resolution is half of the third vertical pixel value of the third resolution; the bandwidth of the second video data The demand value is less than or equal to the maximum bandwidth supported by the data receiving interface of the screen driver board TCON of the display device; The processor is further configured to adjust the resolution of the second video data from the second resolution to the third resolution to obtain third video data; The processor is further configured to control the display to display the third video data in a manner of simultaneously scanning two rows of pixels. 2. The display device according to claim 1, wherein the processor is specifically configured as: If it is determined that the type of the video source device is the first type of device, it is determined that the EDID processing capability of the video source device supports parsing extended EDID. 3. The display device according to claim 2, wherein the processor is specifically configured as: If it is determined that the category of the video source device is not the first type of device, then acquire the characteristic parameters of the video source device; If the characteristic parameter of the video source device can be parsed, determine the EDID processing capability of the video source device according to the characteristic parameter of the video source device. 4. The display device according to claim 3, wherein the processor is specifically configured as: controlling the communicator to send a query request to the server; the query request carries characteristic parameters of the video source device, and the query request is used to request the EDID processing capability of the video source device; controlling the communicator to receive query responses from the server; If the query response indicates that the EDID processing capability of the video source device exists and indicates that the EDID processing capability of the video source device supports parsing extended EDID, then determine that the EDID processing capability of the video source device supports parsing extended EDID ; If the query response indicates that there is no EDID processing capability of the video source device or indicates that the EDID processing capability of the video source device does not support parsing extended EDID, obtain the display data channel DDC communication of the video source device A statistical value; the DDC communication statistical value is used to indicate the completion degree of the video source device reading the extended EDID of the display device; If the DDC communication statistics value indicates that the video source device reads the extended EDID of the display device, it is determined that the EDID processing capability of the video source device supports parsing the extended EDID. 5. The display device according to claim 3, wherein the processor is specifically configured as: In the case that the characteristic parameter of the video source device cannot be parsed, obtain the display data channel DDC communication statistical value of the video source device; the DDC communication statistical value is used to instruct the video source device to read the display device The degree of completion of the extended EDID; If the DDC communication statistics value indicates that the completion status of the video source device reading the extended EDID of the display device is all completed, it is determined that the EDID processing capability of the video source device supports parsing the extended EDID. 6. The display device according to claim 1, wherein the processor is specifically configured as: Copying each row of pixels of each video frame in the first video data, so that the resolution of the first video data is adjusted from the first resolution to a fourth resolution to obtain fourth video data; The fourth vertical pixel value of the fourth resolution is twice the first vertical pixel value of the first resolution; Duplicate each column of pixels in each video frame in the fourth video data, and deduplicate the repeated row pixels in each video frame in the fourth video data, so that the fourth video data The resolution is adjusted from the fourth resolution to the second resolution to obtain the second video data. 7. The display device according to claim 1, wherein the processor is specifically configured as: Copying each row of pixels in each video frame of the second video data, so that the resolution of the second video data is adjusted from the second resolution to the third resolution, to obtain a third video data. 8. The display device according to claim 1, wherein the first refresh rate is 120 Hz, the first resolution is 1920*1080 progressive scan P, and the first frame rate is 240 Hz , the third resolution is 3840*2160P. 9. A display method, characterized in that it is applied to a display device, and the refresh rate of a display of the display device is a first refresh rate, and the method comprises: Obtain the extended display identification data EDID processing capability of the video source device; When the EDID processing capability of the video source device supports parsing the extended EDID, the first video data from the video source device is received; the extended EDID is used to indicate that the received resolution is the first resolution and the frame rate is video data at a first frame rate; the resolution of the first video data is the first resolution, and the frame rate of the first video data is the first frame rate; the first frame rate is the first twice the refresh rate; adjusting the resolution of the first video data from the first resolution to a second resolution to obtain second video data; the second horizontal pixel value of the second resolution is the same as the first resolution of the third resolution The three horizontal pixel values are the same, and the second vertical pixel value of the second resolution is half of the third vertical pixel value of the third resolution; the third resolution is the resolution of the display of the display device ; The bandwidth demand value of the second video data is less than or equal to the maximum bandwidth supported by the data receiving interface of the screen driver board TCON of the display device; adjusting the resolution of the second video data from the second resolution to the third resolution to obtain third video data; The third video data is displayed by scanning two rows of pixels at the same time. 10. A display device, comprising: An acquisition module, configured to acquire the extended display identification data EDID processing capability of the video source device; The obtaining module is further configured to receive the first video data from the video source device when the EDID processing capability of the video source device supports parsing extended EDID; the extended EDID is used to indicate the receiving resolution It is video data with a first resolution and a frame rate of the first frame rate; the resolution of the first video data is the first resolution, and the frame rate of the first video data is the first frame rate; the second A frame rate is twice the first refresh rate; a processing module, configured to adjust the resolution of the first video data received by the acquisition module from the first resolution to a second resolution, so as to obtain second video data; The second horizontal pixel value is the same as the third horizontal pixel value of the third resolution, and the second vertical pixel value of the second resolution is half of the third vertical pixel value of the third resolution; the third The resolution is the resolution of the display of the display device; the bandwidth demand value of the second video data is less than or equal to the maximum bandwidth supported by the data receiving interface of the screen driver board TCON of the display device; The processing module is further configured to copy each row of pixels in each video frame of the second video data, so that the resolution of the second video data is adjusted from the second resolution to the first Three resolutions to obtain the third video data; The display module is configured to display the third video data obtained by the processing module by scanning two rows of pixels at the same time.

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