Method and device for starting screen display of a display device, and display device

Abstract

A method and device for starting screen display of a display device (10) and a display device (10). The display device (10) comprises a display panel (120), and the screen display method comprises: (S310) in response to receiving a start signal, receiving first video data for image display, and setting display parameters of the display panel (120) using control data in the first video data; and (S320) transmitting second video data for displaying an identification to the display panel (120) so that the display panel (120) displays it.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a method and device for starting screen display of a display device, and a display device. Background Art

[0002] After the display device is powered on and before displaying a normal image or program screen, it will display an identification, such as the manufacturer's LOGO, on the screen. At the same time, there will be a black screen stage lasting more than 1 second between the LOGO screen and the normal screen, which not only prolongs the time from the display device starting up to the normal screen display, but also causes a bad user experience. Because for the user, once the screen of the display device is lit, it will be considered that the display device has been initialized and has the conditions for normal operation. Therefore, if a black screen appears after the LOGO screen is displayed, the user may think that there is something wrong with the display device. Summary of the invention

[0003] According to a first aspect of an embodiment of the present disclosure, a method for starting screen display of a display device is provided, wherein the display device includes a display panel, and the method includes: in response to receiving a start signal, receiving first video data for image display, and using control data in the first video data to set display parameters of the display panel; and transmitting second video data for displaying an identification to the display panel so that the display panel displays it.

[0004] In some embodiments, the display device also includes a backlight source; the method also includes: after setting the display parameters of the display panel using the control data in the first video data and before transmitting the second video data for displaying the logo to the display panel so that the display panel displays, it also includes: transmitting a backlight signal to the backlight source to light up the display panel.

[0005] In some embodiments, after setting the display parameters of the display panel using the control data in the first video data, the method further includes: transmitting the image data in the first video data to the display panel so that the display panel displays the image data.

[0006] In some embodiments, image data in the first video data is transmitted to the display panel via a first channel; and the second video data is transmitted to the display panel via a second channel.

[0007] In some embodiments, when the first channel and the second channel transmit data simultaneously, the display panel only receives the second video data transmitted via the second channel.

[0008] In some embodiments, when the first channel and the second channel transmit data simultaneously, the second video data is used to mask out a specified number of bits in the image data in the first video data.

[0009] In some embodiments, after a specified number of bits in image data in the first video data have been masked out using the second video data and identification display has not yet been completed, data in the image data that follows the specified number of bits is cached.

[0010] In some embodiments, the method further includes: in response to receiving a start signal, setting a duration of the logo display.

[0011] According to a second aspect of an embodiment of the present disclosure, a video signal processing device is provided for starting a screen display on a display device, wherein the display device includes a display panel, and the video signal processing device includes: a memory storing computer-readable instructions; and at least one processor configured to execute the computer-readable instructions so as to execute a method according to an embodiment of the present invention.

[0012] According to a third aspect of an embodiment of the present disclosure, there is provided a video signal processing device for starting screen display of a display device, the display device comprising a display panel, the video signal processing device comprising: an image search module, configured to receive the first video data and transmit the first video data to an image processing module; an identification display module, configured to store second video data for displaying an identification, and transmit the second video data to the image processing module after the image processing module completes setting of display parameters of the display panel; the image processing module, configured to receive the first video data from the image search module, extract control data from the first video data and transmit the control data to a signal control output module, and receive second video data from the identification display module and transmit the second video data to the signal control output module; and a signal control output module, receiving control data and second video data from the image processing module, and transmitting the control data and second video data in sequence to the display panel for display by the display panel.

[0013] According to a fourth aspect of an embodiment of the present disclosure, there is provided a display device, including: a display panel; and a display driving board, wherein a video signal processing device according to an embodiment of the present invention is arranged on the display driving board.

[0014] In some embodiments, the display device further includes a shield disposed between the display driving board and the display panel, and the shield is configured to shield the first video data transmitted via the first channel when the first channel and the second channel transmit data simultaneously.

[0015] In some embodiments, the display device further includes a backlight.

[0016] According to the technical solution of the embodiment of the present disclosure, after the display parameters of the display panel are set using the control data in the first video data for image display, the second video data for displaying the logo LOGO is transmitted to the display panel to display the LOGO, thereby eliminating the black screen stage between the LOGO display and the normal screen display, so that the seamless connection between the LOGO display and the normal screen display can be achieved, and the time from power-on to normal screen display can be shortened, thereby improving the user experience. In addition, since the display panel is lit only after the display parameters of the display panel are set using the control data in the first video data for image display, and a part of the first video data is covered by the second video data, the white screen and green screen phenomenon of the screen during the startup stage of the display device is effectively eliminated, further improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features of the embodiments of the present disclosure will become more apparent through the following detailed description in conjunction with the accompanying drawings, in which:

[0018] Figure 1 The schematic diagram schematically shows the principle of a display device according to an embodiment of the present disclosure;

[0019] Figure 2 The driving signal timing of the display panel according to the embodiment of the present disclosure is schematically shown;

[0020] Figure 3 A flowchart of a method for starting screen display of a display device according to an embodiment of the present disclosure is schematically shown;

[0021] Figure 4 An example of a method for starting screen display of a display device according to an embodiment of the present disclosure is schematically shown;

[0022] Figure 5A The transmission process of data for displaying a normal screen and data for displaying a LOGO screen according to an embodiment of the present disclosure is schematically shown;

[0023] Figure 5B Schematically illustrates a process in which data for displaying a normal screen is overwritten by data for displaying a LOGO screen according to an embodiment of the present disclosure; and

[0024] Figure 6 The block diagram schematically shows a video signal processing device for a display apparatus according to an embodiment of the present disclosure.

[0025] In the drawings, the same or similar structures are marked with the same or similar reference numerals. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings. It should be noted that the following description is only for illustration and is not intended to limit the present disclosure. In the following description, in order to provide a thorough understanding of the present disclosure, a large number of specific details are set forth. However, it is obvious to a person of ordinary skill in the art that these specific details do not have to be adopted to implement the present disclosure. In other examples, in order to avoid confusing the present disclosure, known circuits, materials or methods are not specifically described.

[0027] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present disclosure. Therefore, the phrases "in one embodiment," "in an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Figure 1 The schematic diagram of the principle of the display device according to the embodiment of the present disclosure is shown schematically. Figure 1 As shown, the display device 10 includes a display driver board 110 and a display panel 120. The display driver board 110 is used to receive a video signal from outside the display device 10 and process the video signal, including parsing the display image and adjusting the resolution of the display image. Then, the processed video signal is transmitted to the display panel 120 for display. A display array composed of pixel units is arranged on the display panel 120. The display panel 120 receives the video signal from the display driver board 110 and drives the display array according to the received video signal to display an image or video.

[0029] For the convenience of description, according to the functions implemented, the display driver board 110 can be considered to include an interface module 111, an image search module 112, a LOGO display module 113, an image processing module 114 and a signal control output module 115. Those skilled in the art can understand that the corresponding functions can be implemented by an integrated circuit chip such as a processor provided on the display driver board 110.

[0030] When the display device 10 is powered on, an initialization process is first performed. During the initialization process, the initial working states of the various modules on the display driver board 110 and the display array on the display panel 120 can be set. Then, the signal input from the outside is detected through the interface module 111 to determine whether there is video data (first video data) input for image display. At the same time, the pre-stored video data (second video data) for displaying the logo LOGO is transmitted to the image processing module 114 through the LOGO display module 113, so that the display panel 120 can display the LOGO according to the second video data.

[0031] like Figure 1 As shown, the interface of the display device 10 is shown as an analog signal interface 117 and a digital signal interface 118. Among them, the analog signal interface 117 is used to input an analog video signal, and an analog-to-digital converter (ADC) is integrated in the analog signal interface 117 to convert the input analog video signal into a digital video signal. The digital signal interface 118 is used to directly input a digital video signal, and the signal can be in DVI (Digital Visual Interface) format or HDMI (High Definition Multimedia Interface) format. The external device or external signal source for inputting a video signal to the display device 10 may include an external host device or an external signal generator, which is not limited in the embodiment of the present disclosure, as long as it is an external device or external source that can generate and transmit a signal for displaying an image or video. The interface module 111 continuously detects the interface of the display device 10, and when it detects that a signal is sent to the analog signal interface 117 or the digital signal interface 118, it receives a video signal from the interface through the image search module 112. Then, the image search module 112 transmits the received video signal to the image processing module 114 , and after being processed by the image processing module 114 , transmits it to the signal control output module 115 for output and display.

[0032] The video signal may include video data, and the video data further includes control data and image data. Among them, the control data can be used to set the display parameters of the display panel when displaying the picture, and the image data can be used for the display of the image or video. Taking the low voltage differential signal (LVDS) used for liquid crystal display as an example, the LVDS signal transmitted to the digital signal interface 118 may include RGB data signals, clock signals and control signals. Among them, the RGB data signal includes the specific image data to be displayed. The clock signal is a pixel clock signal, which can also be called a data shift clock, which is used to convert the input parallel RGB data into serial data. The pixel clock signal is a reference for transmitting data and reading data signals. The control signal may include control data such as a data selection signal DE, a line synchronization signal HS, a field synchronization signal VS, a standby control signal, and a data sampling point selection signal. The control signal is used to set various parameters when the picture is displayed. For example, the timing, brightness contrast, and display quality are set to display the picture normally. The above-mentioned data signal, clock signal, and control signal are only examples and do not constitute a limitation on the embodiments of the present disclosure.

[0033] The image processing module 114 extracts data signals, clock signals, control signals, etc. from the video signal according to the type of the received signal. Then, the display parameters of the display panel are set according to the extracted control signals. For example, the control signal (i.e., control data) is transmitted to the control output module 115 at a specified timing, and the control output module 115 transmits it to the corresponding control signal input terminal on the display panel 120. After the display parameters are set, the control output module 115 continuously transmits the received RGB data signal (i.e., image data) to the corresponding data signal input terminal of the display panel 120, so that the display panel 120 displays the screen according to the image data, thereby completing the process from power-on to screen display.

[0034] In the above startup process, the problem that may exist is the conflict between the LOGO display and the parameter setting of the display panel. As mentioned above, after the display device 10 is powered on, the LOGO display module 113 transmits the second video data for displaying the logo LOGO to the image processing module 114, that is, when the image processing module 114 transmits the control data to the control output module 115, it is likely that the LOGO display has not yet ended. In this case, the control output module 115 cannot immediately transmit the control data to the corresponding control signal input terminal on the display panel 120, but needs to suspend the setting of the display panel 120, that is, suspend the transmission of control data to the display panel 120. Because when displaying the LOGO, the screen of the display panel 120 should be lit, that is, the backlight source of the display panel 120 should be lit, and if the screen is not lit, the picture will not be displayed. In the case of the screen being lit, if the control signals such as the data selection signal DE, the line synchronization signal HS, and the field synchronization signal VS are transmitted to the display panel 120, the screen will display an aging picture. The aging screen is the default screen displayed by the display panel 120 when there is no valid screen data. The content displayed by the aging screen may be different according to the different settings of the display panel 120. Generally, the first screen of the aging screen is a white screen, so the phenomenon of displaying the first aging screen is generally called a flashing white screen. When the screen is lit, the display parameters are set. Since the data selection signal DE, the line synchronization signal HS, and the field synchronization signal VS need to be retransmitted to the display panel 120, the problem of a flashing white screen will occur. In order to avoid a flashing white screen, the transmission of control data to the display panel 120 will be suspended when the LOGO display is not completed. After the LOGO display is completed, the backlight source is turned off, that is, the control data is transmitted to the display panel 120 after the screen is turned off, which will cause the process from power-on to normal screen display to be extended.

[0035] Figure 2 The driving signal timing of the display panel according to the embodiment of the present disclosure is schematically shown. Figure 2 As shown, the signal waveform VDD represents the power signal waveform, the signal waveform Da represents the waveform of the data signal, and the signal waveform Db represents the waveform of the backlight signal. The backlight signal is used to drive the backlight source to light up the display panel. The conditions that the display panel 120 should meet for normal display are: the power signal VDD is applied to the display panel 120. When the power signal VDD remains as a valid signal, the data signal Da is applied to the display panel 120. When the data signal Da remains as a valid signal, the backlight signal Db is applied to the display panel 120. The process of turning off the screen to close the display image is the opposite of the above process. Figure 2As shown, in one example, T1-T3, T5, T6 and T7 may be in the order of tens of milliseconds. For example, T1 may range from 0.5ms to 10ms, T2 and T3 may range from 0ms to 50ms, and T5 may be greater than 500ms. Figure 2 As shown, T4 shows the time interval that should be satisfied between two lightings of the screen of the display panel 120. After the screen of the display panel 120 is turned off, the state of a part of the display chip will be reset to the initial state so that it can be displayed correctly when it is turned on again. To ensure the reset of this part of the display chip, it is necessary to satisfy T4 greater than or equal to 1s, that is, if the screen is turned off after the LOGO display is finished, the screen can be lit again after an interval of more than 1s. The time for setting the display parameters of the display panel 120 is actually very short, much less than 1s. Therefore, after setting the display parameters, it is often necessary to wait for a relatively long time before entering the normal screen display process. For users, the screen turning off process after the LOGO display is finished can be clearly felt, resulting in a bad user experience.

[0036] According to an embodiment of the present disclosure, a method for starting a display device that can avoid white screen flashing and shorten the time from powering on to displaying a normal screen is provided. Figure 3 As shown, Figure 3 A flowchart of a method 300 for starting screen display of a display device according to an embodiment of the present disclosure is schematically shown. The method 300 comprises the following steps:

[0037] In step S310, in response to receiving a start signal, first video data for image display is received, and display parameters of the display panel are set using control data in the first video data.

[0038] In step S320, second video data for displaying the identification is transmitted to the display panel so as to be displayed by the display panel.

[0039] Combine the following Figure 1 The principle schematic diagram of the display device is used to illustrate.

[0040] In step S310, after the display device 10 receives the start signal, that is, after the display device 10 is powered on, the LOGO display module 113 is controlled not to temporarily transmit the second video data for displaying the logo to the image processing module 114, that is, the process of displaying the LOGO screen is temporarily not executed. In addition, the process of detecting, receiving, processing and setting the first video data for image display is normally performed. That is, after the display device 10 receives the start signal, that is, after the display device 10 is powered on, the signal input from the outside is detected through the interface module 111 to determine whether there is video data (first video data) for image display input, and when it is detected that the signal is transmitted to the analog signal interface 117 or the digital signal interface 118, the video signal is received from the interface through the image search module 112. Then, the image search module 112 transmits the received video signal to the image processing module 114, and the image processing module 114 processes the received video signal and transmits the extracted control data, clock data and image data to the signal control output module 115 respectively. The signal control output module 115 first transmits the received control data to the corresponding control signal input terminal on the display panel 120 to set the display parameters of the display panel 120. After the display parameters are set, the received image data is transmitted to the corresponding image signal input terminal on the display panel 120 so that the display panel 120 continues to display the normal picture.

[0041] According to the embodiments of the present disclosure, the process of detecting, receiving, processing and setting the first video data is continuously executed without pausing and waiting for the execution of other operations, thereby eliminating the waste of waiting time during the parameter setting process.

[0042] Next, in step S320, after completing setting the display parameters of the display panel 120 using the control data in the first video data, that is, after the signal control output module 115 transmits the received control data to the corresponding control signal input terminal on the display panel 120, the control LOGO display module 113 starts to transmit the second video data used to display the logo to the image processing module 114, that is, starts the process of executing the LOGO display.

[0043] Furthermore, during the execution of step S310, there is no need to use the screen for display. Therefore, during the execution of step S310, the screen is never turned on and is kept in an off state. In this way, a white screen will not flash during the process of setting the display parameters using control data, and the user will not be misled into thinking that there is an abnormality with the display device.

[0044] According to an embodiment, after step S310 is executed and before step S320 is executed, that is, after the display parameters of the display panel are set using the control data in the first video data and before the second video data for displaying the identification is transmitted to the display panel so that the display panel displays it, a backlight signal is also transmitted to the display panel to light up the screen of the display panel so as to prepare for displaying the picture.

[0045] According to the embodiment of the present disclosure, since the display parameters have been set before the LOGO is displayed, the screen does not need to be turned off again after it is turned on, thereby eliminating the time interval T4 that should be met between waiting for the screen to light up twice, thereby speeding up the boot process and shortening the boot time.

[0046] The above method of starting the screen display of the display device can be executed by Figure 4 The example implementation shown. Figure 4 An example of a method for starting a screen display of a display device according to an embodiment of the present disclosure is schematically shown, which can be implemented using program code. Figure 4 The process shown. Figure 4 As shown, the implementation process includes the following steps:

[0047] In step S410 , the device is powered on and an initialization process is performed, wherein the initialization process includes setting the initial working states of each functional module on the display driver board and the display panel 120 .

[0048] In step S420, the flag of LOGO display is set. At this time, the LOGO is not displayed, but only the flag of LOGO display is set, and the screen of the display panel remains in the off state. For example, the flag of LOGO display can be set to 1, thereby indicating that the LOGO screen is displayed in the subsequent process. The flag of LOGO display can also be set to 0, thereby indicating that the LOGO screen is not displayed in the subsequent process, that is, the display of the LOGO screen is canceled. According to the embodiment, the duration of the LOGO screen display can also be set accordingly.

[0049] In step S430, the video signal is queried and retrieved. Specifically, the control interface module detects the interface to detect whether there is a video signal input at the interface, and the video signal can be a video signal of a user image or video display provided by an external host or an external source. In the case of detecting whether there is a video signal input at the interface, the image search module is controlled to receive the video signal.

[0050] In step S440, after receiving the video signal, the video signal is transmitted to the image processing module, and the video processing module is controlled to process the video signal. According to an embodiment, the processing of the video signal may include extracting image data, clock data and control data from the video signal, scaling the image data, etc. Then, the extracted control data is transmitted to the signal control output module, and the signal control output module is controlled to transmit the control data to the corresponding control signal input terminal of the display panel to set the display parameters of the display panel.

[0051] In step S450, the screen is turned on to prepare for picture display.

[0052] In step S460, the flag of the LOGO display is queried. If Flag is 1, it is determined that the LOGO screen is displayed, and then step S470 is continued to obtain the set duration of the LOGO screen display, and the LOGO screen is displayed according to the set duration. If Flag is 0, the display of the LOGO screen is canceled, and step S480 is executed.

[0053] In step S470, after the LOGO display reaches the set duration, the normal screen display is directly entered, that is, step S480 is executed.

[0054] In step S480, a normal picture is displayed.

[0055] According to this example, the execution of LOGO display can be controlled by setting the LOGO display flag, which increases the flexibility of LOGO display. The duration of LOGO display can be pre-set as needed, so that the duration of LOGO display can be adjusted according to actual display needs, further increasing the flexibility of LOGO display.

[0056] Figure 5A The transmission process of data for displaying a normal screen and data for displaying a LOGO screen according to an embodiment of the present disclosure is schematically shown. Figure 5A As shown, according to an embodiment of the present disclosure, the image data in the first video data for displaying a normal picture and the second video data for displaying a LOGO are transmitted to the display panel via different transmission channels. Figure 5A In the embodiment, the display driving board 510 transmits the image data in the first video data to the display panel 520 via the first channel 531 , and transmits the second video data to the display panel 520 via the second channel 532 .

[0057] Furthermore, if Figure 5AAs shown, the first channel 531 and the second channel 532 are connected to the data shielding device 533 respectively. When the data shielding device 533 receives only the data signal transmitted by the first channel 531, or only the data signal transmitted by the second channel 532, it allows the data signal of the first channel 531 or the data signal of the second channel 532 to pass normally so as to be transmitted to the display panel 520. When the data shielding device 533 receives data signals from the first channel 531 and the second channel 532 at the same time, it only allows the data in the second channel 532 to pass normally, and shields the data in the first channel 531. That is, only the data in the second channel 532 is transmitted to the display panel 520, and at this time, the data signal of the first channel 531 is discarded, or is shielded by the data in the second channel 532. As shown in FIG. Figure 5B The data masking device 533 may also be referred to as a data masker.

[0058] Figure 5B The process of overwriting the data for displaying the normal screen with the data for displaying the LOGO screen according to an embodiment of the present disclosure is schematically shown. Figure 5B In FIG. 5 , the first video data (specifically, the image data in the first video data) and the second video data are transmitted simultaneously. At the vertical dotted line (where the data arrives at the input end of the display panel 520), the second video data is received, and the start bit B in the first video data is 0 The bits between bit Bn and bit Bn arriving after a transmission time are discarded or overwritten by the second video data.

[0059] When the display device is connected to some external signal sources, such as when it is connected to an external host device or a signal generator, the external host device or the signal generator will transmit a short black picture in RGB format before sending the normal picture, and the display driver board generally uses the YUV format to parse this erroneous picture, which causes the phenomenon of flashing green screen. Here, YUV is a coding color coding method different from RGB, Y represents brightness, and U and V represent chromaticity. In the embodiment of the present disclosure, when the data for displaying the normal picture and the data for displaying the LOGO picture are transmitted to the display panel at the same time, the data for displaying the LOGO picture is used to cover the front part of the data for displaying the normal picture, thereby having enough time to "avoid" the erroneous picture transmitted by the external host device or the signal generator, thereby avoiding the occurrence of flashing green screen, and can further improve the user experience during the boot process.

[0060] According to another embodiment of the present disclosure, a specified number of bits may be pre-set, and then the second video data may be used to mask the specified number of bits in the image data in the first video data. After the specified number of bits have been masked, if the LOGO display has not been completed, that is, the second video data is still being transmitted, the remaining image data is cached. This can avoid overwriting valid image data.

[0061] According to the embodiments of the present disclosure, by optimizing the startup process of the display device, a seamless connection between the LOGO display and the normal screen display is achieved, the startup time of the display device is shortened, and the user experience is improved.

[0062] According to the embodiments of the present disclosure, the seamless connection between the LOGO display and the normal screen display can be achieved by modifying the monitoring software (Monitor) of the existing display device, which is suitable for promotion to the boot process of any LCD display device. Whether it is a high-end UHD model or an entry-level FHD model, the boot process of the embodiments of the present disclosure can be implemented based on the Monitor.

[0063] Figure 6 The block diagram of the video signal processing device for a display device according to an embodiment of the present disclosure is schematically shown. Figure 6 As shown, the video signal processing device 600 includes a processor 601 and a memory 602, wherein the memory 602 is configured to store machine-readable instructions, and the processor 601 can execute the method for starting the picture display of the display device according to any of the above embodiments.

[0064] In some embodiments, the processor 601 may perform the following steps: in response to receiving a start signal, receive first video data for image display, set display parameters of the display panel using control data in the first video data, and transmit second video data for displaying an identification to the display panel for display by the display panel.

[0065] The memory 602 may be in the form of non-volatile or volatile memory, such as Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory, or the like.

[0066] Those skilled in the art will appreciate that the methods shown above are exemplary only. The method disclosed herein is not limited to the steps and sequence shown above. The device shown above may be other devices and may include more modules. The various identifiers shown above are exemplary only and not restrictive. Those skilled in the art may make many changes and modifications according to the teachings of the illustrated embodiments.

[0067] It should be understood that the above embodiments of the present disclosure can be implemented by software, hardware, or a combination of software and hardware. For example, various components inside the device in the above embodiments can be implemented by a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), programmable logic devices (CPLDs), and the like.

[0068] In addition, the embodiments of the present disclosure disclosed herein can be implemented on a computer program product. More specifically, the computer program product is a product as follows: having a computer-readable medium, a computer program logic is encoded on the computer-readable medium, and when executed on a computing device, the computer program logic provides relevant operations to implement the above-mentioned technical solutions of the present disclosure. When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present disclosure. This arrangement of the present disclosure is typically provided as software, code and / or other data structures arranged or encoded on a computer-readable medium such as an optical medium (e.g., CD-ROM), a floppy disk or a hard disk, or other media such as firmware or microcode on one or more ROM or RAM or PROM chips, or downloadable software images in one or more modules, shared databases, etc. Software or firmware or such a configuration can be installed on a computing device so that one or more processors in the computing device execute the technical solutions described in the embodiments of the present disclosure.

[0069] Although the present disclosure has been illustrated above in conjunction with the preferred embodiments of the present disclosure, it will be understood by those skilled in the art that various modifications, substitutions and changes may be made to the present disclosure without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure should not be limited by the above embodiments, but by the attached claims and their equivalents.

Claims

1. A method for starting a screen display of a display device, wherein the display device comprises a display panel, and the method comprises: In response to receiving a start signal, receiving first video data for image display, and setting display parameters of the display panel using control data in the first video data; as well as The second video data for displaying the identification is transmitted to the display panel so as to be displayed by the display panel.

2. The method according to claim 1, wherein: The display device also includes a backlight source; The method also includes: after setting the display parameters of the display panel using the control data in the first video data and before transmitting the second video data for displaying the logo to the display panel so that the display panel displays, transmitting a backlight signal to the backlight source to control the backlight source to light up the display panel.

3. The method according to claim 1, after setting the display parameters of the display panel using the control data in the first video data, further comprising: The image data in the first video data is transmitted to the display panel so as to be displayed by the display panel.

4. The method according to claim 3, wherein: transmitting image data in the first video data to the display panel via a first channel; and The second video data is transmitted to the display panel via a second channel.

5. The method according to claim 4, wherein: In the case where the first channel and the second channel transmit data simultaneously, the display panel only receives the second video data transmitted via the second channel.

6. The method according to claim 4 or 5, wherein: In the case where the first channel and the second channel transmit data simultaneously, a specified number of bits in the image data in the first video data are masked out using the second video data.

7. The method according to claim 6, wherein: When a specified number of bits in the image data in the first video data have been masked out by using the second video data and when identification display has not been completed, data after the specified number of bits in the image data are cached.

8. The method according to claim 1, further comprising: In response to receiving the start signal, a duration of the logo display is set.

9. A video signal processing device, used for starting a picture display of a display device, wherein the display device comprises a display panel, and the video signal processing device comprises: a memory storing computer-readable instructions; as well as At least one processor configured to execute the computer readable instructions to perform the method according to any one of claims 1 to 8.

10. A video signal processing device, used for starting a picture display of a display device, wherein the display device comprises a display panel, and the video signal processing device comprises: An image search module, configured to receive first video data and transmit the first video data to an image processing module; a logo display module configured to store second video data for displaying a logo, and transmit the second video data to the image processing module after the image processing module completes setting of display parameters of the display panel; an image processing module configured to receive the first video data from the image search module, extract control data from the first video data and transmit the control data to the signal control output module, and receive second video data from the identification display module and transmit the second video data to the signal control output module; as well as The signal control output module receives the control data and the second video data from the image processing module, and transmits the control data and the second video data to the display panel in sequence so that the display panel displays them.

11. A display device, comprising: Display panel; as well as Display driver board, Wherein, the video signal processing device according to claim 9 or 10 is arranged on the display driving board.

12. The display device according to claim 11, further comprising a data masker disposed between the display driving board and the display panel, wherein the data masker is configured to mask the first video data transmitted via the first channel when the first channel and the second channel transmit data simultaneously, wherein: transmitting image data in the first video data to the display panel via the first channel; And transmitting the second video data to the display panel via the second channel.

13. The display device according to claim 11 or 12, further comprising a backlight source arranged in the display panel.

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