CN117616494A - Image signal transmission method, device and storage medium - Google Patents
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
Abstract
The disclosure relates to an image signal transmission method, an image signal transmission device and a storage medium, and relates to the technical field of display control. The method comprises the following steps: acquiring an image signal input to a timing controller; controlling the first processing unit to perform first processing on the image signal at a first moment and controlling the second processing unit to perform second processing on the image signal at a second moment; and transmitting the image signal subjected to the first processing by the first processing unit to the first panel, and transmitting the image signal subjected to the second processing by the second processing unit to the second panel.
Description
The disclosure relates to the technical field of display control, and in particular relates to an image signal transmission method, an image signal transmission device and a storage medium.
In the process of displaying the image signal on the display screen, the plurality of processing units perform division processing on the image signal, for example, the first processing unit performs image display processing on the image signal, and the second processing unit performs color brightness processing on the image signal.
However, since the process of performing color brightness is longer than the process of performing image display processing, the change in image brightness at the time of switching for an image is slower than the change in image display, and a smear phenomenon is presented.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides an image signal transmission method, apparatus, and storage medium.
According to a first aspect of embodiments of the present disclosure, there is provided an image signal transmission method applied to a display screen, where the display screen includes a first panel, a second panel, and a timing controller, where the timing controller includes a first processing unit and a second processing unit, the first processing unit is configured to perform a first process on an image signal input to the first panel, and the second processing unit is configured to acquire an image signal input to the timing controller from the image signal input to the second panel; controlling the first processing unit to perform first processing on the image signal at a first moment and controlling the second processing unit to perform second processing on the image signal at a second moment; and transmitting the image signal subjected to the first processing by the first processing unit to the first panel, and transmitting the image signal subjected to the second processing by the second processing unit to the second panel.
In one embodiment, the controlling the first processing unit to perform a first process on the image signal at a first time and controlling the second processing unit to perform a second process on the image signal at a second time includes: respectively carrying out copying processing of set times on each frame of image signals by taking a frame as a unit to obtain target image signals, wherein each frame of image signals in the target image signals comprises image frames with the same number as the set times; for each frame of image signal in the target image signal, splitting the target image signal into a first image frame and a second image frame, controlling the first processing unit to perform first processing on the first image frame at a first moment, and controlling the second processing unit to perform second processing on the second image frame at a second moment.
In yet another embodiment, the first image frame is an odd frame in a frame image signal in the target image signal and the second image frame is an even frame in a frame image signal in the target image signal.
In yet another embodiment, when the number of frames included in the first image frame and the second image frame is different, a first frequency at which the first image frame is transmitted is different from a second frequency at which the second image frame is transmitted.
In yet another embodiment, the copying process for each frame of image signal a set number of times includes: determining a time difference between a time period required to perform the first process and a time period required to perform the second process; and determining the set times based on the time difference, and performing copying processing of the set times on each frame of image signal.
In yet another embodiment, the first panel is a backlight panel of the display screen and the second panel is a display panel of the display screen.
In yet another embodiment, the first panel is a mini LED display driven backlight panel and the second panel is an LCD driven display panel.
In yet another embodiment, the display screen is a mini-LED display screen.
According to a second aspect of the embodiments of the present disclosure, there is provided an image signal transmission apparatus applied to a display screen, the display screen including a first panel, a second panel, and a timing controller including therein a first processing unit for performing a first process on an image signal input to the first panel and a second processing unit for performing a second process on an image signal input to the second panel, a time period required for performing the first process being different from a time period required for performing the second process, the apparatus comprising: an acquisition module for acquiring an image signal input to the timing controller; the control module is used for controlling the first processing unit to perform first processing on the image signal at a first moment and controlling the second processing unit to perform second processing on the image signal at a second moment; and the transmission module is used for transmitting the image signal subjected to the first processing by the first processing unit to the first panel and transmitting the image signal subjected to the second processing by the second processing unit to the second panel.
In one embodiment, the control module is specifically configured to copy the image signals for a set number of times, with each frame of image signals being used as a unit, to obtain a target image signal, where each frame of image signal in the target image signal includes image frames whose number is consistent with the set number of times; for each frame of image signal in the target image signal, splitting the target image signal into a first image frame and a second image frame, controlling the first processing unit to perform first processing on the first image frame at a first moment, and controlling the second processing unit to perform second processing on the second image frame at a second moment.
In yet another embodiment, the first image frame is an odd frame in a frame image signal in the target image signal and the second image frame is an even frame in a frame image signal in the target image signal.
In yet another embodiment, when the number of frames included in the first image frame and the second image frame is different, a first frequency at which the first image frame is transmitted is different from a second frequency at which the second image frame is transmitted.
In a further embodiment, the control module is further specifically configured to determine a time difference between a time period required for performing the first process and a time period required for performing the second process; and determining the set times based on the time difference, and performing copying processing of the set times on each frame of image signal.
In yet another embodiment, the first panel is a backlight panel of the display screen and the second panel is a display panel of the display screen.
In yet another embodiment, the first panel is a mini LED display driven backlight panel and the second panel is an LCD driven display panel.
According to a third aspect of the embodiments of the present disclosure, there is provided an image signal transmission apparatus including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the image signal transmission method as described in the first aspect and embodiments thereof.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium, which when executed by a processor, performs the image signal transmission method as described in the first aspect and embodiments thereof.
The technical scheme provided by the embodiment of the disclosure at least can comprise the following beneficial effects: the first processing unit is controlled to perform first processing on the image signal at a first moment and the second processing unit is controlled to perform second processing on the image signal at a second moment by acquiring the image signal input to the time schedule controller, and as the moment when the first processing unit and the second processing unit process the same image signal is different, the time difference between the first processing unit transmitting the image signal subjected to the first processing to the first panel and the second processing unit transmitting the image signal subjected to the second processing to the second panel can be reduced, so that the phenomenon of smear perceived by human eyes during image switching or video watching is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a system architecture of a display screen, shown according to an exemplary embodiment;
FIG. 2 is a block diagram of a Mini-LED display screen, according to an exemplary embodiment;
FIG. 3 is a system architecture of a Mini-LED display screen, according to an exemplary embodiment;
FIG. 4 is a flow chart illustrating a method of signal transmission according to an exemplary embodiment;
FIG. 5 is a flow chart illustrating another method of signal transmission according to an exemplary embodiment;
fig. 6 is a schematic diagram showing the number of frames before and after copying of an image signal according to an exemplary embodiment;
fig. 7 is a device block diagram of a signal transmission device according to an exemplary embodiment;
fig. 8 is a block diagram illustrating a structure of an apparatus for image signal transmission according to an exemplary embodiment;
fig. 9 is a block diagram illustrating another apparatus for image signal transmission according to an exemplary embodiment.
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure.
In the process of displaying the image signal on the display screen, the plurality of processing units perform division processing on the image signal, for example, the first processing unit performs image display processing on the image signal, and the second processing unit performs color brightness processing on the image signal. In the related art, since the process of performing color brightness is longer than the process time of performing image display processing, the change in image brightness is slower than the change in image display at the time of switching for an image, and a smear phenomenon is presented.
Based on the above-mentioned problems, the embodiments of the present disclosure provide an image signal transmission method, by acquiring an image signal input to a timing controller, controlling a first processing unit to perform a first process on the image signal at a first time and controlling a second processing unit to perform a second process on the image signal at a second time, and because the first processing unit and the second processing unit process the same image signal at different times, a time difference between the first processing unit transmitting the image signal after the first process to a first panel and the second processing unit transmitting the image signal after the second process to a second panel can be reduced, so as to improve a smear phenomenon perceived by a human eye when an image is switched or a video is watched.
The image signal transmission method provided by the embodiment of the disclosure can be applied to various display screen systems, as shown in fig. 1, a display screen includes a timing controller 1, a first panel 2 and a second panel 3.
The timing controller 1 is used for receiving an image signal to be displayed; the timing controller 1 includes a first processing unit 11 and a second processing unit 12, the first processing unit 11 is configured to perform a first process on the image signal input to the first panel 2, and the second processing unit 12 is configured to perform a second process on the image signal input to the second panel 3, and a time period required for performing the first process is different from a time period required for performing the second process.
The first panel 2 is used for receiving the image signal after the first processing unit performs the first processing, and the second panel 3 is used for receiving the image signal after the second processing unit performs the second processing.
In the following description, a Mini LED (Mini-LED) display screen is mainly composed of an LCD display panel and a direct type Mini-LED array backlight panel, where Mini-LED technology generally refers to dividing a large backlight panel of the display panel into several areas, each of which is composed of a separate small-sized Mini-LED chip as a backlight source. The technology retains the advantages of low cost and long service life of the LCD display panel, and can realize high-contrast and high-dynamic range display through the partition control of the backlight. The Mini-LED display screen mainly comprises an LCD display panel and a direct type Mini-LED array backlight panel, as shown in FIG. 2, the backlight panel is divided into a plurality of areas, and each area comprises a plurality of Mini-LEDs; when the LCD display panel displays different images, different areas of the backlight panel also have different brightness, and the backlight partitioning method can increase the display contrast ratio compared with the whole backlight energy of the traditional LCD. Accordingly, the zoned backlight needs to be driven and adjusted separately, as compared to if the overall backlight only needs to be turned on and off.
However, when the number of backlight partitions on the backlight panel is large and the arrangement of Mini-LEDs on the backlight panel is not necessarily completely regular, the partitioning algorithm is complicated, and the required operation time is long, resulting in a delay of the data output to the backlight drive compared with the data of the display drive, which is manifested in a phenomenon of a smear due to a change in backlight brightness being slower than a change in liquid crystal deflection angle during image switching. Aiming at the problem, the partition algorithm module is transferred from the TCON chip to the main board chip with stronger calculation power, and the processed data is directly output, but the development period of the main board chip is long, and no clear planning exists at present.
As shown in fig. 3, the Mini-LED display screen includes a video signal input module 1, a data processing and control module 2 (corresponding to a timing controller in an embodiment of the present disclosure), a display driving module 3, a display panel 4 (corresponding to a first panel in an embodiment of the present disclosure), a backlight driving module 5, and a backlight panel 6 (corresponding to a second panel in an embodiment of the present disclosure).
The video signal input module 1 is mainly used for receiving external image signals and inputting the received signals to the data processing and control module 2.
The data processing and control module 2 mainly realizes the conversion of data format and the processing and realization of algorithm. In one embodiment of the present disclosure, the data processing and control module 2 is a Tcon module with algorithm operation and data processing capabilities, and specifically includes: (1) A data codec unit (i.e., a first processing unit). The unit mainly converts the data signals received by the video signal input module 1 into screen end driving signals and outputs the screen end driving signals to the display driving module 3; (2) A backlight partition processing unit (i.e., a second processing unit). The unit mainly adjusts the brightness of each backlight partition unit through a partition backlight adjusting method, and outputs an adjusted backlight driving signal to the backlight driving module 5 to realize the control of the backlight partition brightness.
A display driving module 3 comprising a data driving unit and a gate driving unit. The data driving unit mainly receives the coded data driving signals output by the data processing and control module 2, converts the coded data driving signals into pixel gray-scale voltages of the panel through analog-to-digital conversion, and drives the display panel 4 to display; the grid driving unit mainly receives a scanning driving control signal output by the data processing and control module, realizes the on and off of a pixel switch of the display panel 4, and realizes the display and refresh of a frame of image in cooperation with the data driving module.
The display panel 4 mainly receives the driving signals sent by the display driving module 3, and the pixel units in the display panel 4 realize the display of different gray scales of images under the action of pixel gray scale voltages and scanning driving control signals. The display panel 4 may be various display panels such as an organic light emitting display panel, a liquid crystal display panel, a plasma display panel, an electrophoretic display panel, an electrowetting display panel, and the like. Embodiments of the present disclosure will be described with reference to a liquid crystal display panel.
The backlight driving module 5 mainly receives the backlight data driving signals of each partition calculated by the data processing and control module 2, so as to dynamically adjust the driving current of each partition lamp bead and realize the adjustment and output of the backlight brightness of each partition.
And the backlight panel 6 is mainly used for receiving the current output by the backlight driving module 5, dynamically adjusting the brightness of the LED lamp beads in each partition of the backlight module and realizing the brightness display of the backlight partition. The backlight panel 6 is a display module composed of mini-LED lamp beads. The module receives PWM signals output by the backlight driving module 5, so that currents of mini-LED lamp blocks in different partitions are adjusted, and backlight brightness of each partition is adjusted.
The Mini-LED display screen can be applied to large-size display scenes such as large-size spliced display screens, TV, notebooks, flat plates and the like.
Fig. 4 is a flowchart illustrating an image signal transmission method according to an exemplary embodiment, which is applied to the display system shown in fig. 1 or 3, as shown in fig. 4, and includes the following steps:
in step S11, an image signal input to the timing controller is acquired.
The time sequence controller comprises a first processing unit and a second processing unit, wherein the first processing unit is used for performing first processing on the image signals input to the first panel, the second processing unit is used for performing second processing on the image signals input to the second panel, and the time length required for performing the first processing is different from the time length required for performing the second processing.
Alternatively, the image signal includes an image signal or a single image signal in a video stream signal of HDMI, DP, or the like. The image signal may be acquired from any device having an image signal acquisition, processing, and transmission function, and how to acquire the image signal in this embodiment is not limited.
In step S12, the first processing unit is controlled to perform a first process on the image signal at a first timing, and the second processing unit is controlled to perform a second process on the image signal at a second timing.
Optionally, if the time period of the first processing unit for performing the first processing on the image signal is longer than the time period of the second processing unit for performing the second processing on the image signal, the first time period is earlier than the second time period, that is, the time period of the first processing unit for performing the first processing on the image signal is earlier than the time period of the second processing unit for performing the second processing on the image signal.
If the duration of the first processing unit for performing the first processing on the image signal is smaller than the duration of the second processing unit for performing the second processing on the image signal, the first time is later than the second time, that is, the time when the first processing unit performs the first processing on the image signal is later than the time when the second processing unit performs the second processing on the image signal.
In step S13, the image signal after the first processing unit performs the first processing is transmitted to the first panel, and the image signal after the second processing unit performs the second processing is transmitted to the second panel.
According to the embodiment of the disclosure, the first processing unit is controlled to perform first processing on the image signal at the first moment and the second processing unit is controlled to perform second processing on the image signal at the second moment by acquiring the image signal input to the time schedule controller, and as the moment when the first processing unit and the second processing unit process the same image signal is different, the time difference between the first processing unit transmitting the image signal subjected to the first processing to the first panel and the second processing unit transmitting the image signal subjected to the second processing to the second panel can be reduced, so that the phenomenon of smear perceived by eyes when images are switched or videos are watched is improved.
In some embodiments, the first panel is a backlight panel of a display screen and the second panel is a display panel of the display screen.
Further, the first panel is a backlight panel driven by a mini LED display screen, and the second panel is a display panel driven by an LCD.
Optionally, the first processing performed by the first processing unit on the image signal may be partition algorithm processing, so as to obtain partition coefficients of each partition, and the backlight driving module controls a certain partition in the backlight panel to emit light or not according to the partition coefficients. When the backlight panel is divided into m×n backlight partitions, the first frequency doubling signal is correspondingly divided into m×n image partitions, where M is the number of backlight partitions in the vertical direction, and N is the number of backlight partitions in the horizontal direction.
Illustratively, the image signal is divided into 2 x 2 image partitions: the first, second, third, and fourth image partitions 21, 22, 23, and 24 are provided with one-to-one correspondence of backlight partitions in the backlight panel corresponding to each image partition. For each image partition, the corresponding backlight partition is used for independently controlling the backlight brightness of the image partition. For example, assuming that the first image partition 21 is correspondingly provided with the first backlight partition 11, the second image partition 22 is correspondingly provided with the second backlight partition 12, the third image partition 23 is correspondingly provided with the third backlight partition 13, and the fourth image partition 24 is correspondingly provided with the fourth backlight partition 14, the first backlight partition 11 is used to individually control the backlight luminance of the first image partition 21, the second backlight partition 12 is used to individually control the backlight luminance of the second image partition 22, the third backlight partition 13 is used to individually control the backlight luminance of the third image partition 23, and the fourth backlight partition 14 is used to individually control the backlight luminance of the fourth image partition 24, thereby controlling the light emission intensities of Mini-LEDs of different partitions in the backlight panel.
The second processing performed on the image signal by the second processing unit may be color algorithm, brightness compensation, and the like, and the processed image signal is sent to the display driving module, and the display driving module controls the liquid crystal deflection angle so that the display panel displays an image.
As shown in fig. 5, the time when the backlight partition processing unit in the Mini-LED display screen performs the first processing on the image signal is earlier than the time when the data encoding/decoding unit performs the second processing, so that the algorithm module for processing the data of the display panel starts later, the data output to the display panel is correspondingly delayed, and the delay of the backlight panel relative to the backlight panel is greatly reduced by canceling the delay of the backlight algorithm.
In the embodiment of the disclosure, since the display screen will maintain the previous state until the next frame of image signal arrives, the image actually displayed is still at the original frame rate.
In some embodiments, step S12 may be embodied as steps S21-S22, as follows:
in step S21, the image signals are subjected to the copy processing for each frame image signal a set number of times in units of frames, to obtain a target image signal.
Wherein each frame of image signal in the target image signal comprises the same number of image frames as the set number of times.
For example, the number of times is set to 2, as shown in (a) of fig. 6, and the image signal before copying is 4 frames, then the 4 frames of the image signals are respectively subjected to 2 times of copying processing, as shown in (b) of fig. 6, and the final target image signal is obtained, wherein the first frame of image signal includes two identical image frames, the second frame of image signal includes two identical image frames, and so on.
As one possible implementation, a time difference between a time period required for performing the first process and a time period required for performing the second process is determined, a set number of times is determined based on the time difference, and a copy process of the set number of times is performed for each frame of image signal.
It should be understood that the larger the time difference is, the larger the number of settings is, and that, illustratively, when the time difference is 2s, the number of settings is 2; when the time difference is 4s, the number of times is set to 4.
As another possible implementation manner, when the first panel is a backlight panel driven by a mini LED display screen and the second panel is a display panel driven by an LCD, since there are a plurality of partitions on the backlight panel, the number of setting times may be determined based on the number of partitions of the backlight panel by performing a partitioning algorithm on an image signal to control the display brightness of each partition on the backlight panel, and the greater the number of partitions of the backlight panel, the greater the number of setting times.
In step S22, for each frame of the image signal of the target image, the image signal is split into a first image frame and a second image frame, the first processing unit is controlled to perform a first process on the first image frame at a first time, and the second processing unit is controlled to perform a second process on the second image frame at a second time.
For example, when the set number is 2, since each frame signal in the target image signal is sequentially transmitted, the first image frame is an odd frame in the frame image signal in the target image signal, and the second image frame is an even frame in the frame image signal in the target image signal.
Alternatively, when the number of frames included in the first image frame and the second image frame is different, for example, the first image frame includes 2 frames and the second image frame includes 1 frame, the first frequency at which the first image frame is transmitted to the first processing unit is different from the second frequency at which the second image frame is transmitted to the second processing unit.
It should be understood that the first image frame and the second image frame of each frame image signal are in adjacent states.
In the embodiment of the disclosure, in the target image signal obtained by performing copy processing on each frame of image signal, the data content carried by the adjacent frames of each frame of image signal is the same, and the same image frames are respectively transmitted to the first processing unit and the second processing unit, so that the time of the first processing unit for processing the first image frame is different from the time of the second processing unit for processing the second image frame, thereby shortening the time difference and reducing the smear phenomenon.
It should be understood by those skilled in the art that the various implementations/embodiments of the present disclosure may be used in combination with the foregoing embodiments or may be used independently. Whether used alone or in combination with the previous embodiments, the principles of implementation are similar. In the practice of the present disclosure, some of the examples are described in terms of implementations that are used together. Of course, those skilled in the art will appreciate that such illustration is not limiting of the disclosed embodiments.
Based on the same conception, the embodiment of the disclosure also provides an image signal transmission device.
It will be appreciated that, in order to achieve the above-mentioned functions, the image signal transmission apparatus provided in the embodiments of the present disclosure includes corresponding hardware structures and/or software modules that perform the respective functions. The disclosed embodiments may be implemented in hardware or a combination of hardware and computer software, in combination with the various example elements and algorithm steps disclosed in the embodiments of the disclosure. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as beyond the scope of the embodiments of the present disclosure.
Fig. 7 is a block diagram of an image signal transmission device according to an exemplary embodiment, which is applied to a display screen, wherein the display screen includes a first panel, a second panel, and a timing controller, the timing controller includes a first processing unit and a second processing unit, the first processing unit is used for performing a first process on an image signal input to the first panel, and the second processing unit is used for performing a second process on the image signal input to the second panel, and a time period required for performing the first process is different from a time period required for performing the second process. Referring to fig. 7, the apparatus includes an acquisition module 701, a control module 702, and a transmission module 703.
An acquisition module 701 for acquiring an image signal input to the timing controller;
a control module 702, configured to control the first processing unit to perform a first process on the image signal at a first time, and control the second processing unit to perform a second process on the image signal at a second time;
the transmission module 703 is configured to transmit the image signal after the first processing unit performs the first processing to the first panel, and transmit the image signal after the second processing unit performs the second processing to the second panel.
In one embodiment, the control module 702 is specifically configured to copy the image signals for a set number of times in units of frames, so as to obtain a target image signal, where each frame of image signal in the target image signal includes image frames whose number is consistent with the set number of times; for each frame of image signal in the target image signal, splitting the target image signal into a first image frame and a second image frame, controlling a first processing unit to perform first processing on the first image frame at a first moment, and controlling a second processing unit to perform second processing on the second image frame at a second moment.
In yet another embodiment, the first image frame is an odd frame in the frame image signal in the target image signal and the second image frame is an even frame in the frame image signal in the target image signal.
In yet another embodiment, when the number of frames included in the first image frame and the second image frame are different, the first frequency at which the first image frame is transmitted is different from the second frequency at which the second image frame is transmitted.
In yet another embodiment, the control module 702 is further specifically configured to determine a time difference between a time period required for performing the first process and a time period required for performing the second process; and determining the set times based on the time difference, and performing copying processing of the set times on each frame of image signal.
In yet another embodiment, the first panel is a backlight panel of a display screen, and the second panel is a display panel of the display screen.
In yet another embodiment, the first panel is a mini-LED display driven backlight panel and the second panel is an LCD driven display panel.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Fig. 8 is a block diagram illustrating an apparatus 800 for image signal transmission according to an exemplary embodiment. For example, the device 800 may be a large-sized tiled display screen, TV, notebook, tablet, liquid crystal television, or the like.
Referring to fig. 8, apparatus 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.
The processing component 802 generally controls overall operation of the apparatus 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on the device 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power component 806 provides power to the various components of the device 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 800.
The multimedia component 808 includes a screen between the device 800 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 800 is in an operational mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the apparatus 800. For example, the sensor assembly 814 may detect an on/off state of the device 800, a relative positioning of the components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, an orientation or acceleration/deceleration of the device 800, and a change in temperature of the device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communication between the apparatus 800 and other devices, either in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 804 including instructions executable by processor 820 of apparatus 800 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
Fig. 9 is a block diagram illustrating an apparatus 900 for image signal transmission according to an exemplary embodiment. For example, apparatus 900 may be provided as a server. Referring to FIG. 9, apparatus 900 includes a processing component 922 that further includes one or more processors, and memory resources represented by memory 932, for storing instructions, such as applications, executable by processing component 922. The application programs stored in memory 932 may include one or more modules that each correspond to a set of instructions. Further, processing component 922 is configured to execute instructions to perform the signaling method described above.
The apparatus 900 may also include a power component 926 configured to perform power management of the apparatus 900, a wired or wireless network interface 950 configured to connect the apparatus 900 to a network, and an input output (I/O) interface 958. The device 900 may operate based on an operating system stored in memory 932, such as Windows Server, mac OS XTM, unixTM, linuxTM, freeBSDTM, or the like.
The disclosed embodiments also provide a computer program product directly loadable into a memory and including software code, which, when loaded and executed via a computer, enables the image signal transmission method provided in the above embodiments to be implemented.
It is further understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.
Claims (10)
- An image signal transmission method, characterized in that it is applied to a display screen, the display screen includes a first panel, a second panel, and a timing controller, the timing controller includes a first processing unit and a second processing unit, the first processing unit is configured to perform a first process on an image signal input to the first panel, the second processing unit is configured to perform a second process on an image signal input to the second panel, a duration required for performing the first process is different from a duration required for performing the second process, and the method includes:acquiring an image signal input to the timing controller;controlling the first processing unit to perform first processing on the image signal at a first moment and controlling the second processing unit to perform second processing on the image signal at a second moment;and transmitting the image signal subjected to the first processing by the first processing unit to the first panel, and transmitting the image signal subjected to the second processing by the second processing unit to the second panel.
- The method of claim 1, wherein controlling the first processing unit to perform a first process on the image signal at a first time and controlling the second processing unit to perform a second process on the image signal at a second time comprises:respectively carrying out copying processing of set times on each frame of image signals by taking a frame as a unit to obtain target image signals, wherein each frame of image signals in the target image signals comprises image frames with the same number as the set times;for each frame of image signal in the target image signal, splitting the target image signal into a first image frame and a second image frame, controlling the first processing unit to perform first processing on the first image frame at a first moment, and controlling the second processing unit to perform second processing on the second image frame at a second moment.
- The method of claim 2, wherein the first image frame is an odd frame in a frame image signal in the target image signal and the second image frame is an even frame in a frame image signal in the target image signal.
- The method of claim 2, wherein when the number of frames included in the first image frame and the second image frame are different, a first frequency at which the first image frame is transmitted is different from a second frequency at which the second image frame is transmitted.
- The method according to any one of claims 2 to 4, wherein the copying process for each frame of the image signal is performed a set number of times, comprising:determining a time difference between a time period required to perform the first process and a time period required to perform the second process;and determining the set times based on the time difference, and performing copying processing of the set times on each frame of image signal.
- The method of claim 1, wherein the first panel is a backlight panel of the display screen and the second panel is a display panel of the display screen.
- The method of claim 6, wherein the first panel is a mini LED display driven backlight panel and the second panel is an LCD driven display panel.
- An image signal transmission device, characterized in that it is applied to a display screen, the display screen includes a first panel, a second panel, and a timing controller, the timing controller includes a first processing unit and a second processing unit, the first processing unit is configured to perform a first process on an image signal input to the first panel, the second processing unit is configured to perform a second process on an image signal input to the second panel, a duration required for performing the first process is different from a duration required for performing the second process, and the device includes:an acquisition module for acquiring an image signal input to the timing controller;the control module is used for controlling the first processing unit to perform first processing on the image signal at a first moment and controlling the second processing unit to perform second processing on the image signal at a second moment;and the transmission module is used for transmitting the image signal subjected to the first processing by the first processing unit to the first panel and transmitting the image signal subjected to the second processing by the second processing unit to the second panel.
- An image signal transmission apparatus, characterized by comprising:a processor;a memory for storing processor-executable instructions;wherein the processor is configured to perform the image signal transmission method of any one of claims 1-7.
- A non-transitory computer readable storage medium, which when executed by a processor, performs the image signal transmission method of any of claims 1-7.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2022/099204 WO2023240550A1 (en) | 2022-06-16 | 2022-06-16 | Image signal transmission method and apparatus, and storage medium |
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| CN117616494A true CN117616494A (en) | 2024-02-27 |
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| CN202280004605.0A Pending CN117616494A (en) | 2022-06-16 | 2022-06-16 | Image signal transmission method, device and storage medium |
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| KR20160032771A (en) * | 2014-09-16 | 2016-03-25 | 삼성디스플레이 주식회사 | Operation method of backlight unit and display device comprising the backlight unit |
| CN105892683A (en) * | 2016-04-29 | 2016-08-24 | 上海乐相科技有限公司 | Display method and target equipment |
| CN109801601B (en) * | 2019-03-21 | 2020-11-03 | 京东方科技集团股份有限公司 | Backlight driving method, control circuit and display device |
| CN112992079B (en) * | 2019-12-17 | 2024-04-16 | 咸阳彩虹光电科技有限公司 | Method for improving display image quality and display device |
| CN114078432B (en) * | 2020-08-11 | 2023-07-14 | 北京小米移动软件有限公司 | Driving method and device |
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