CN117597918A - Signal transmission method, signal transmitting end, signal receiving end and laser projection equipment - Google Patents
Signal transmission method, signal transmitting end, signal receiving end and laser projection equipment Download PDFInfo
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- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- H—ELECTRICITY
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- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
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Abstract
A signal transmission method, a signal transmitting end, a signal receiving end and a laser projection device. The method includes acquiring a video signal of a video to be displayed (S101); analyzing a video signal of a video to be displayed to obtain first image data of a current restored image, wherein the first image data comprises data of all primary color pixel components of a frame image (S102); determining a first primary color pixel component corresponding to the image, and transmitting second image data of the frame image to the signal receiving end, so that the signal receiving end displays the frame image according to the second image data of the frame image, wherein the second image data comprises data of at least two primary color pixel components except the first primary color pixel component corresponding to the frame image (S103). Because the transmission quantity of the video signal is reduced, the video signal can be matched with the transmission load quantity of the signal transmission line, the video image display can be realized without carrying out jade shrinkage processing on the video signal before transmission, and the problem of reduced resolution of the displayed video image can be avoided.
Description
Cross Reference to Related Applications
The present application claims priority from chinese patent office, application number 202110739855.6, filed at month 6 and 30 of 2021, entitled signal transmission method and projection device, the entire contents of which are incorporated herein by reference.
The application relates to the technical field of display, in particular to a signal transmission method, a signal sending end, a signal receiving end and laser projection equipment.
With the development of display technology at present, the resolution of the video image that can be supported by the display device is higher and higher, accordingly, the amount of video signals to be transmitted is larger and larger, and then more signal transmission lines are required, which makes the circuit design of the signal transmission lines difficult.
When the transmitted video signal amount is larger than the transmission load amount of the signal transmission line, the signal transmission line is generally compressed at the transmitting end, and then the compressed video signal is transmitted to the receiving end for display. In the above scheme, when the amount of the transmitted video signal is larger than the transmission load amount of the signal transmission line, compression processing is required before transmission, so that the resolution of the displayed video image is reduced.
Disclosure of Invention
In a first aspect, an embodiment of the present application provides a signal transmission method, which is applied to a signal sending end, including: acquiring a video signal of a video to be displayed; analyzing the video signal of the video to be displayed to obtain first image data of a current frame image, wherein the first image data comprises data of all primary color pixel components of the frame image; determining a first primary color pixel component corresponding to the frame image, and sending second image data of the frame image to a signal receiving end so that the signal receiving end displays the frame image according to the second image data of the frame image; wherein the second image data includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image.
In a second aspect, an embodiment of the present application provides a signal transmission method, which is applied to a signal receiving end, including: receiving second image data of a current frame image of a video to be displayed; wherein the second image data of the frame image is obtained based on the first image data of the frame image; wherein the first image data includes data of all primary color pixel components of the frame image, and the second image data of the frame image includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image; and displaying the frame image according to the second image data of the frame image.
In a third aspect, an embodiment of the present application provides a signal transmitting end, including: the acquisition module is used for acquiring a video signal of a video to be displayed; the analysis module is used for analyzing the video signal of the video to be displayed to obtain first image data of a current frame image, wherein the first image data comprises data of all primary color pixel components of the frame image; the sending module is used for determining a first primary color pixel component corresponding to the frame image and sending second image data of the frame image to the signal receiving end so that the signal receiving end displays the frame image according to the second image data of the frame image; wherein the second image data includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image.
In a fourth aspect, an embodiment of the present application provides a signal receiving terminal, including: the receiving module is used for receiving second image data of a current frame image of the video to be displayed; wherein the second image data of the frame image is obtained based on the first image data of the frame image; wherein the first image data includes data of all primary color pixel components of the frame image, and the second image data of the frame image includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image; and the display module is used for displaying the frame image according to the second image data of the frame image.
In a fifth aspect, embodiments of the present application provide a laser projection device, including: a TV signal board, a display signal board, a light source, a light modulation device, and a lens; the TV signal board is used for acquiring a video signal of a video to be displayed and analyzing the video signal of the video to be displayed to obtain first image data of a current frame image, wherein the first image data comprises data of all primary color pixel components of the frame image; the TV signal board is further used for determining a first primary color pixel component corresponding to the frame image and sending second image data of the frame image to the display signal board, wherein the second image data comprises data of at least two primary color pixel components except the first primary color pixel component corresponding to the frame image; the display signal board is used for receiving the second image data of the frame image, sending a first driving signal to the light source so that the light source sequentially provides three primary color light beams, and sending a second driving signal to the light modulation device according to the second image data of the frame image so that the light modulation device modulates the three primary color light beams provided by the light source; the lens is used for projecting and imaging the modulated three primary color light beams.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a functional block diagram of a display device;
fig. 2 is a flow chart of a signal transmission method according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of the relationship of pixel and primary pixel components;
fig. 4 is a flow chart of a signal transmission process;
FIG. 5 is a schematic diagram of a supplemental rule of frame image data;
FIG. 6 is a schematic diagram of the effect of displaying data for at least two primary color pixel components;
fig. 7 is a schematic structural diagram of a signal transmitting end according to a fourth embodiment of the present application;
fig. 8 is a schematic structural diagram of a signal receiving end provided in a fifth embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device according to a sixth embodiment of the present application;
fig. 10 is a schematic structural diagram of an electronic device according to a seventh embodiment of the present application;
fig. 11 is a schematic structural view of a laser projection apparatus.
Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.
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 application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
The terms referred to in this application are explained first:
display resolution: also known as pixel resolution, simply referred to as resolution, refers to the number of pixels that a display can display, typically by multiplying the number of pixels per row by the number of pixels per column, for example: 1024×768, representing that the display can display 768 rows, 1024 columns, a total of 786432 pixels; the resolution is 640 x 480, which means that the display can display 480 rows and 640 columns, and the total display can realize 307200 pixels. Obviously, the higher the resolution, the more pixels the display screen can display, and the clearer the image;
bandwidth: the amount of data that can be transferred on a line per unit time, commonly known as bps (bit per second), i.e., bits/second, is used to represent the ability of a communication line to transfer data;
Refresh rate: representing how many times the image of the screen is redrawn per second, i.e., the number of screen refreshes per second, in Hz (hertz). The higher the refresh rate, the more stable the image and the more natural and clear the image display.
The following describes a transmission process of a video signal in combination with an actual application scenario. As shown in fig. 1, a functional block diagram of a display device is shown, which includes a signal transmitting end and a signal receiving end. When a display task exists, external signals are transmitted to the video coding and decoding chip through the input signal connector; then, the video coding and decoding chip carries out coding and decoding processing on the received signals to obtain signal formats which can be supported by the display driving module in the signal receiving end, and the processed signals are transmitted to the display driving module through the signal transmission line; similarly, the display driving module receives the processed signal, performs encoding and decoding processing on the processed signal to obtain a signal format which can be supported by the display module in the signal receiving end, and transmits the processed signal to the display module so that the display module displays the signal.
However, in practical applications, the signal transmission capability of the signal transmission line between the signal transmitting end and the signal receiving end is limited, and when the amount of the transmitted video signal is greater than the transmission load of the signal transmission line, the signal transmitting end generally compresses the video signal, and then transmits the compressed signal to the signal receiving end for display.
In the above scheme, when the amount of the transmitted video signal is larger than the transmission load amount of the signal transmission line, compression processing is required before transmission, so that the resolution of the displayed video image is reduced.
The signal transmission method and the projection equipment provided by the application aim to solve the technical problems in the prior art.
The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Example 1
Fig. 2 is a flowchart of a signal transmission method according to an embodiment of the present application. As shown in fig. 2, if the method is applied to a signal transmitting end, the method includes:
s101, acquiring a video signal of a video to be displayed.
In practical applications, a signal transmitting end generally obtains a video signal input from the outside, so that the video signal is processed, transmitted and displayed in a subsequent step.
The signal transmitting end may be any device having functions of video signal acquisition, processing and transmission, and the specific type of the signal transmitting end is not limited in this embodiment.
S102, analyzing the video signal of the video to be displayed to obtain first image data of a current frame image, wherein the first image data comprises data of all primary color pixel components of the frame image.
The current frame image may be obtained by analyzing a video to be displayed, and as an example, a certain video may be formed by a plurality of frame images, and may be transmitted according to a dimension sequence of the frame images when video data is transmitted, so the current frame image herein may refer to a frame image that needs to be transmitted currently. Wherein the frame image is made up of a plurality of pixels, each pixel further comprising a plurality of primary color pixel components, the primary color pixel components comprising, as an example: an R (Red) pixel component, a G (Green) pixel component, and a B (Blue) pixel component.
The relationship between the pixel and primary pixel components will be described below with reference to the accompanying drawings, and is illustratively shown in fig. 3, which is a schematic diagram of the relationship between the pixel and primary pixel components, wherein in a frame image, 9 pixels are included, that is, each square in the drawing represents 1 pixel, each square may be divided into 3 small squares, each small square represents 1 primary pixel component, and in one example, each pixel includes: 1R pixel component, 1G pixel component, and 1B pixel component.
In this scheme, after the video signal of the video to be displayed is acquired in step S101, the video signal is parsed to obtain component data of all primary color pixels of the frame image. The component data of the primary color pixels are specifically a data matrix composed of a plurality of '1's and/or a plurality of '0's.
S103, determining a first primary color pixel component corresponding to the frame image, and sending second image data of the frame image to a signal receiving end so that the signal receiving end displays the frame image according to the second image data of the frame image; wherein the second image data includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image.
In practical application, the signal transmitting end determines the first primary color pixel corresponding to the frame image according to a preset rule, and performs deletion processing on the first primary color pixel data in the first image data to obtain second image data of the frame image, and sends the second image data to the signal receiving end, so that the signal receiving end realizes display of the frame image based on the image data. In one example, as shown in fig. 4, a flow chart of the signal transmission process is shown, which includes a signal transmitting end, a signal receiving end, and a display module. For example, the signal transmitting end transmits the second image data to the signal receiving end; the signal receiving end comprises a processing module and a buffer memory module, wherein the processing module is used for processing the received image data of the N-th frame image, and the buffer memory module is used for storing the image data of the (n+1) -th frame image; correspondingly, the display module is used for displaying the N-1 frame image processed by the processing module.
In this embodiment, first image data of a current frame image is obtained by analyzing a video signal of a video to be displayed; and determining a first primary color pixel corresponding to the frame image, and sending second image data of the frame image to the signal receiving end so that the signal receiving end displays the frame image. In the scheme, the transmission quantity of the video signal is reduced, so that the video signal can be matched with the transmission load quantity of the signal transmission line, compression processing of the video signal before transmission is not needed, video image display can be realized, and the problem of resolution reduction of the displayed video image can be avoided.
In practical applications, the manner of determining the first primary color pixel component corresponding to the frame image includes various manners, and an exemplary description is provided below with reference to the embodiments.
Example two
In a second embodiment of the present application, a method for determining a first primary color pixel component corresponding to the frame image is mainly described, and based on the first embodiment, in an example, the determining the first primary color pixel component corresponding to the frame image includes: for a current frame image of a video to be displayed, according to a first primary color pixel component corresponding to a previous frame image and a preset arrangement sequence of all primary color pixel components, taking an adjacent primary color pixel component positioned behind the first primary color pixel component corresponding to the previous frame image in the arrangement sequence as the first primary color pixel component corresponding to the frame image.
The predetermined arrangement of the primary color pixel components may include a plurality of types, and is not limited in this embodiment, and for example, an arrangement order may be an R pixel component, a G pixel component, and a B pixel component. In combination with this example, in one embodiment, for a current frame image of a video to be displayed, first, a first primary color pixel component corresponding to a previous frame image is acquired, and assuming that the primary color pixel component is a G pixel component, then, according to the example arrangement order, it may be determined that an adjacent primary color pixel component following the G pixel component is a B pixel component, so the B pixel component is taken as the first primary color pixel component corresponding to the current frame image.
In this embodiment, the first primary color pixel component corresponding to the current frame image is determined according to a fixed sequence, and the data of the first primary color pixel component is deleted later, so that the frame image data to be transmitted is not higher than the load of the transmission line.
In another example, the determining the first primary color pixel component corresponding to the frame image includes: acquiring the number of effective pixels of each primary color pixel component in the frame image; acquiring the number of effective pixels of each primary color pixel component in the previous frame image; calculating to obtain the change rate of each primary color pixel component according to the number of the effective pixels of each primary color pixel component in the frame image and the previous frame image; and taking the primary color pixel component with the smallest change rate as a first primary color pixel component corresponding to the frame image.
In one example, the rate of change of the primary color pixels is a ratio of a difference in the number of effective pixels of each primary color pixel component in the frame image and the previous frame image to the number of effective pixels of the primary color pixel component in the current frame image. For example, in combination with practical application, assuming that the number of effective pixels of R, G, B in the previous frame image of the frame image is r ', g', b ', and the number of effective pixels of R, G, B in the current frame image is r, g, b, respectively, the rate of change of the number of effective pixels of the frame image is (r-r')/r, (g-g ')/g, (b-b')/b. And comparing the change rate of the effective pixel quantity of the three primary color pixel components, and taking the primary color pixel component corresponding to the effective pixel quantity with the minimum change rate as the first primary color pixel component of the frame image. For example, when (R-R ')/R > (G-G ')/G > (B-B ')/B), the first primary color pixel component of the frame image is B, and then, for the frame image, the transmission line between the signal transmitting end and the signal receiving end only needs to transmit the effective pixel data of R and G of the frame image, thereby reducing the amount of transmission data, and further, making the frame image data to be transmitted not higher than the load of the transmission line. The effective pixel number change rate is the change rate of the primary color pixel component, and in another example, the effective pixel number change rate may be the ratio of the difference between the number of effective pixels of each primary color pixel component in the frame image and the previous frame image to the number of effective pixels of the primary color pixel component in the previous frame image. In the present embodiment, the calculation method of the effective pixel number change rate is not limited.
In practical applications, the determination of the first primary color pixel component may be performed according to different triggering strategies. In one example, the determining the first primary color pixel component corresponding to the frame image includes: triggering and executing the current frame image aiming at the video to be displayed based on a preset triggering strategy, and determining a first primary color pixel component corresponding to the frame image; wherein, the triggering strategy comprises: execution is triggered for each frame of image of the video to be displayed. Specifically, for each frame image of the video to be displayed, the operation of determining the pixel component of the first primary color is triggered once, so that the pixel data deleting operation is performed on each frame image of the video to be displayed in the subsequent steps. In this embodiment, the operation of determining the first primary color pixel component is triggered once for each frame image of the video to be displayed, and the pixel data corresponding to the first primary color pixel component is deleted subsequently, so that the frame image data to be transmitted is not higher than the load of the transmission line.
In another example, the determining the first primary color pixel component corresponding to the frame image includes: triggering and executing the current frame image aiming at the video to be displayed based on a preset triggering strategy, and determining a first primary color pixel component corresponding to the frame image; wherein, the triggering strategy comprises: the execution is triggered every predetermined number of frame images for the video to be displayed. The predetermined number may be 1, 2, or more, and this is not limited in this embodiment. For example, the operation of determining the first primary color pixel component is performed every 1 frame image for a video to be displayed. In this embodiment, the operation of determining the pixel component of the first primary color is performed by triggering and executing every predetermined number of frame images, and the pixel data corresponding to the pixel component of the first primary color is deleted subsequently, so that the frame image data to be transmitted is not higher than the load amount of the transmission line.
In this embodiment, the first primary color pixel component is determined according to a predetermined trigger policy, and the pixel data corresponding to the first primary color pixel component is deleted subsequently, so that the frame image data to be transmitted is not higher than the load capacity of the transmission line.
Example III
An embodiment of the present invention provides a signal transmission method, applied to a signal receiving end, including: receiving second image data of a current frame image of a video to be displayed; wherein the second image data of the frame image is obtained based on the first image data of the frame image; wherein the first image data includes data of all primary color pixel components of the frame image, and the second image data of the frame image includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image; and displaying the frame image according to the second image data of the frame image.
The current frame image refers to a frame image which is required to be subjected to pixel data deleting processing; the primary color pixel components include: an R (Red) pixel component, a G (Green) pixel component, and a B (Blue) pixel component.
In one example, after the signal transmitting end obtains the first primary color pixel component corresponding to the current frame image, pixel data deletion processing is performed on the current frame image according to the primary color pixel component type, for example, if the obtained first primary color pixel component is an R pixel component, data of the R pixel component in all pixels of the current frame image is deleted, that is, only data of the G pixel component and data of the B pixel component in all pixels are reserved and used as image data of the frame image; then, the signal transmitting end transmits the image data of the frame image to the signal receiving end, so that the signal receiving end can receive the image data of the frame image; and finally, the signal receiving end realizes the display of the frame image according to the image data of the frame image.
In practical applications, on the basis of the foregoing embodiments, a plurality of implementation manners are included in displaying a frame image, and in one example, displaying the frame image according to the second image data of the frame image includes: analyzing second image data of the frame image to obtain data of pixel components of at least two primary colors of the frame image; determining a first primary color pixel component corresponding to the frame image, and taking data of the first primary color pixel component corresponding to the frame image in image data of a previous frame image as data of the first primary color pixel component corresponding to the frame image; and sequentially sending data of at least two primary color pixel components of the frame image and a first primary color pixel component corresponding to the frame image to a display module so that the display module displays the frame image.
In this case, since the image data format may change during the image data transmission, it is necessary to analyze the image data of the frame image to obtain data of at least two primary color pixel components in a matrix form, respectively. For example, after receiving image data of a frame image, the signal receiving end firstly analyzes the image data to obtain data of pixel components of at least two primary colors in a matrix form; then, determining at least two primary color pixel components from the data of the at least two primary color pixel components; determining a first primary color pixel component corresponding to the frame image according to the at least two primary color pixel components; and finally, taking the data of the first primary color pixel component in the image data of the previous frame image as the data of the first primary color pixel component of the frame image so as to realize the supplementation of the image data of the frame image, and sending the frame image data after supplementing the image data to a display module for display. The method for supplementing the image data of the frame image may be described with reference to a specific example, as shown in fig. 5, which is a schematic diagram of a rule for supplementing the frame image data. Image data of three frame images are included in the figure, wherein each frame image comprises data of R, G, B pixel components, and when data supplementation is carried out, as shown in fig. 5, the data of R pixel components in the first frame image data adopts the data of R pixel components of the zeroth frame image; the data of the G pixel component in the second frame image adopts the data of the G pixel component of the first frame image; the data of the B pixel component in the third frame image uses the data of the B pixel component of the second frame image, and so on. In this embodiment, after the signal receiving end receives the image data of the frame image, the signal receiving end performs the processing of the complementary pixel data, so that the resolution of the video image is not affected during the subsequent display.
In another example, the displaying the frame image according to the second image data of the frame image includes: analyzing second image data of each frame image of the video to be displayed, and obtaining data of pixel components of at least two primary colors of the frame image; integrating data of at least two primary color pixel components of each frame image according to the display sequence of each frame image of the video to be displayed, and sequentially sending the integrated data to a display module so that the display module displays the frame images of the video to be displayed. For example, after receiving image data of a frame image, the signal receiving end firstly analyzes the image data to obtain data of pixel components of at least two primary colors in a matrix form; and then integrating the data of the pixel components of at least two primary colors of each frame image according to frames, sequencing the data of the pixel components of at least two primary colors of each frame image according to the display sequence of each frame image, and sequentially sending the sequenced data to a display module according to the sequence so that the display module sequentially displays the frame images of the video to be displayed. In this embodiment, the data of the pixel components of at least two primary colors of each frame image is ordered according to the display sequence of each frame image, and then sequentially sent to the display module according to the sequence, so that the display module realizes display, and it is ensured that the video display is not disordered, and the display effect is improved.
In this embodiment, the video refresh rate may be further improved by displaying the data of the pixel components of at least two primary colors. For example, as shown in fig. 6, an effect diagram of displaying data of pixel components of at least two primary colors is shown. When the first behavior does not delete the data of the first primary color pixel component, displaying frame image data, wherein the total frame number is three frames; after deleting the data of the first primary color pixel component, the second action is to display frame image data, wherein the total frame number is four frames; it is apparent that, during the same time, the data of the at least two primary color pixel components is displayed more than the number of frames in which the data of the first primary color pixel component is not deleted, i.e., the refresh rate is higher.
In this embodiment, after the signal receiving end receives the image data of the frame image, the signal receiving end performs the processing of the complementary pixel data, so that the resolution of the video image is not affected during the subsequent display.
Example IV
Fig. 7 is a schematic structural diagram of a signal transmitting end provided in a fourth embodiment of the present application, as shown in fig. 7, where the signal transmitting end provided in the present embodiment includes: an acquisition module 41, a parsing module 42, and a transmission module 43.
Wherein, the obtaining module 41 is configured to obtain a video signal of a video to be displayed. The parsing module 42 is configured to parse the video signal of the video to be displayed to obtain first image data of a current frame image, where the first image data includes data of all primary color pixel components of the frame image. A transmitting module 43, configured to determine a first primary color pixel component corresponding to the frame image, and transmit second image data of the frame image to a signal receiving end, so that the signal receiving end displays the frame image according to the second image data of the frame image; wherein the second image data includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image.
Optionally, the sending module 43 is specifically configured to: for a current frame image of a video to be displayed, according to a first primary color pixel component corresponding to a previous frame image and a preset arrangement sequence of all primary color pixel components, taking an adjacent primary color pixel component positioned behind the first primary color pixel component corresponding to the previous frame image in the arrangement sequence as the first primary color pixel component corresponding to the frame image.
Optionally, the sending module 43 is specifically configured to: acquiring the number of effective pixels of each primary color pixel component in the frame image; acquiring the number of effective pixels of each primary color pixel component in the previous frame image; calculating to obtain the change rate of each primary color pixel component according to the number of the effective pixels of each primary color pixel component in the frame image and the previous frame image; and taking the primary color pixel component with the smallest change rate as a first primary color pixel component corresponding to the frame image.
Optionally, the sending module 43 is specifically configured to: triggering and executing the current frame image aiming at the video to be displayed based on a preset triggering strategy, and determining a first primary color pixel component corresponding to the frame image; wherein, the triggering strategy comprises: the triggering execution is performed for each frame image of the video to be displayed or for a predetermined number of frame images per interval.
The signal transmitting end provided in this embodiment may execute the technical solution of the foregoing method embodiment, and its implementation principle and technical effects are similar, and are not described herein again.
Example five
Fig. 8 is a schematic structural diagram of a signal receiving end provided in a fifth embodiment of the present application, as shown in fig. 8, where the signal receiving end provided in the present embodiment includes: a receiving module 51, a display module 52.
Wherein, the receiving module 51 is configured to receive second image data of a current frame image of a video to be displayed; wherein the second image data of the frame image is obtained based on the first image data of the frame image; wherein the first image data includes data of all primary color pixel components of the frame image, and the second image data of the frame image includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image. And a display module 52 for displaying the frame image according to the second image data of the frame image.
Optionally, the display module 52 is specifically configured to: analyzing second image data of the frame image to obtain data of pixel components of at least two primary colors of the frame image; determining a first primary color pixel component corresponding to the frame image, and taking data of the first primary color pixel component corresponding to the frame image in image data of a previous frame image as data of the first primary color pixel component corresponding to the frame image; and sequentially sending data of at least two primary color pixel components of the frame image and a first primary color pixel component corresponding to the frame image to a display module so that the display module displays the frame image.
Optionally, the display module 52 is specifically configured to: analyzing second image data of each frame image of the video to be displayed, and obtaining data of pixel components of at least two primary colors of the frame image; integrating data of at least two primary color pixel components of each frame image according to the display sequence of each frame image of the video to be displayed, and sequentially sending the integrated data to a display module so that the display module displays the frame images of the video to be displayed.
Example six
Fig. 9 is a schematic structural diagram of an electronic device according to a sixth embodiment of the present application. As shown in fig. 9, the electronic device may be a device mounted with the signal transmitting terminal as described in the fourth embodiment. The electronic device includes: a memory 61 and a processor 62.
The memory 61 is configured to store processor-executable instructions. The memory 61 may be implemented by any type or combination of volatile or non-volatile 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 memory 61 and the processor 62 are interconnected by a circuit. In particular, the various components are interconnected using a bus, and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions executing within the electronic device.
Example seven
Fig. 10 is a schematic structural diagram of an electronic device according to a seventh embodiment of the present application. As shown in fig. 10, the electronic device may be a device mounted with the signal receiving terminal as described in embodiment five. The electronic device includes: a memory 71 and a processor 72.
The memory 71 is configured to store processor-executable instructions. The memory 71 may be implemented by any type of volatile or non-volatile memory device or combination thereof, 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 memory 71 and the processor 72 are interconnected by a circuit. In particular, the various components are interconnected using a bus, and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions executing within the electronic device.
Example eight
An eighth embodiment of the present application provides a computer-readable storage medium.
The instructions in the storage medium, when executed by the processor, enable the electronic device as described in embodiment six to perform the signal transmission method described above.
Example nine
A ninth embodiment of the present application provides a computer-readable storage medium.
The instructions in the storage medium, when executed by the processor, enable the electronic device as described in embodiment seven to perform the signal transmission method described above.
Examples ten
Embodiments ten of the present application provide a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the signal transmission method described above.
Example eleven
An eleventh embodiment of the present application provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the signal transmission method described above.
Example twelve
A twelfth embodiment of the present application provides a display device, including: a signal transmitting terminal for performing the method described in the first and second embodiments, and a signal receiving terminal for performing the method described in the third embodiment.
Example thirteen
In a thirteenth embodiment of the present application, as shown in fig. 11, which is a schematic structural diagram of a laser projection device, the device includes: a TV signal board, a display signal board, a light source, a light modulation device, and a lens; the TV signal board is used for acquiring a video signal of a video to be displayed and analyzing the video signal of the video to be displayed to obtain first image data of a current frame image, wherein the first image data comprises data of all primary color pixel components of the frame image; the TV signal board is further used for determining a first primary color pixel component corresponding to the frame image and sending second image data of the frame image to the display signal board, wherein the second image data comprises data of at least two primary color pixel components except the first primary color pixel component corresponding to the frame image; the display signal board is used for receiving the second image data of the frame image, sending a first driving signal to the light source so that the light source sequentially provides three primary color light beams, and sending a second driving signal to the light modulation device according to the second image data of the frame image so that the light modulation device modulates the three primary color light beams provided by the light source; the lens is used for projecting and imaging the modulated three primary color light beams.
Optionally, the apparatus as described above, the TV signal board is specifically configured to, when determining the first primary color pixel component corresponding to the frame image: for a current frame image of a video to be displayed, according to a first primary color pixel component corresponding to a previous frame image and a preset arrangement sequence of all primary color pixel components, taking an adjacent primary color pixel component positioned behind the first primary color pixel component corresponding to the previous frame image in the arrangement sequence as the first primary color pixel component corresponding to the frame image.
Optionally, the apparatus as described above, the TV signal board is specifically configured to, when determining the first primary color pixel component corresponding to the frame image: acquiring the number of effective pixels of each primary color pixel component in the frame image; acquiring the number of effective pixels of each primary color pixel component in the previous frame image; calculating to obtain the change rate of each primary color pixel component according to the number of the effective pixels of each primary color pixel component in the frame image and the previous frame image; and taking the primary color pixel component with the smallest change rate as a first primary color pixel component corresponding to the frame image.
Optionally, the apparatus as described above, the TV signal board is specifically configured to, when determining the first primary color pixel component corresponding to the frame image: triggering and executing the current frame image aiming at the video to be displayed based on a preset triggering strategy, and determining a first primary color pixel component corresponding to the frame image; wherein, the triggering strategy comprises: the triggering execution is performed for each frame image of the video to be displayed or for a predetermined number of frame images per interval.
Optionally, the apparatus as described above, the display signal board is specifically configured to, when displaying the frame image according to the second image data of the frame image: analyzing second image data of the frame image to obtain data of pixel components of at least two primary colors of the frame image; determining a first primary color pixel component corresponding to the frame image, and taking data of the first primary color pixel component corresponding to the frame image in image data of a previous frame image as data of the first primary color pixel component corresponding to the frame image; and sequentially sending data of at least two primary color pixel components of the frame image and a first primary color pixel component corresponding to the frame image to a display module so that the display module displays the frame image.
Optionally, the apparatus as described above, the display signal board is specifically configured to, when displaying the frame image according to the second image data of the frame image: analyzing second image data of each frame image of the video to be displayed, and obtaining data of pixel components of at least two primary colors of the frame image; integrating data of at least two primary color pixel components of each frame image according to the display sequence of each frame image of the video to be displayed, and sequentially sending the integrated data to a display module so that the display module displays the frame images of the video to be displayed.
In practice, the light modulation device may be a DMD (Digital Micromirror Device ). The laser projection device provided in this embodiment may execute the technical solution of the foregoing method embodiment, and its implementation principle and technical effects are similar, and are not described herein again.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (15)
- A signal transmission method, applied to a signal transmitting end, comprising:Acquiring a video signal of a video to be displayed;analyzing the video signal of the video to be displayed to obtain first image data of a current frame image, wherein the first image data comprises data of all primary color pixel components of the frame image;determining a first primary color pixel component corresponding to the frame image, and sending second image data of the frame image to a signal receiving end so that the signal receiving end displays the frame image according to the second image data of the frame image; wherein the second image data includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image.
- The method of claim 1, wherein determining the first primary color pixel component to which the frame image corresponds comprises:for a current frame image of a video to be displayed, according to a first primary color pixel component corresponding to a previous frame image and a preset arrangement sequence of all primary color pixel components, taking an adjacent primary color pixel component positioned behind the first primary color pixel component corresponding to the previous frame image in the arrangement sequence as the first primary color pixel component corresponding to the frame image.
- The method of claim 1, wherein determining the first primary color pixel component to which the frame image corresponds comprises:acquiring the number of effective pixels of each primary color pixel component in the frame image;acquiring the number of effective pixels of each primary color pixel component in the previous frame image;calculating to obtain the change rate of each primary color pixel component according to the number of the effective pixels of each primary color pixel component in the frame image and the previous frame image;and taking the primary color pixel component with the smallest change rate as a first primary color pixel component corresponding to the frame image.
- The method of claim 1, wherein determining the first primary color pixel component to which the frame image corresponds comprises:triggering and executing the current frame image aiming at the video to be displayed based on a preset triggering strategy, and determining a first primary color pixel component corresponding to the frame image; wherein, the triggering strategy comprises: the triggering execution is performed for each frame image of the video to be displayed or for a predetermined number of frame images per interval.
- A signal transmission method, applied to a signal receiving end, comprising:receiving second image data of a current frame image of a video to be displayed; wherein the second image data of the frame image is obtained based on the first image data of the frame image; wherein the first image data includes data of all primary color pixel components of the frame image, and the second image data of the frame image includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image;And displaying the frame image according to the second image data of the frame image.
- The method of claim 5, wherein displaying the frame image based on the second image data of the frame image comprises:analyzing second image data of the frame image to obtain data of pixel components of at least two primary colors of the frame image;determining a first primary color pixel component corresponding to the frame image, and taking data of the first primary color pixel component corresponding to the frame image in image data of a previous frame image as data of the first primary color pixel component corresponding to the frame image;and sequentially sending data of at least two primary color pixel components of the frame image and a first primary color pixel component corresponding to the frame image to a display module so that the display module displays the frame image.
- The method of claim 5, wherein displaying the frame image based on the second image data of the frame image comprises:analyzing second image data of each frame image of the video to be displayed, and obtaining data of pixel components of at least two primary colors of the frame image;integrating data of at least two primary color pixel components of each frame image according to the display sequence of each frame image of the video to be displayed, and sequentially sending the integrated data to a display module so that the display module displays the frame images of the video to be displayed.
- A signal transmitting terminal, comprising:the acquisition module is used for acquiring a video signal of a video to be displayed;the analysis module is used for analyzing the video signal of the video to be displayed to obtain first image data of a current frame image, wherein the first image data comprises data of all primary color pixel components of the frame image;the sending module is used for determining a first primary color pixel component corresponding to the frame image and sending second image data of the frame image to the signal receiving end so that the signal receiving end displays the frame image according to the second image data of the frame image; wherein the second image data includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image.
- A signal receiving terminal, comprising:the receiving module is used for receiving second image data of a current frame image of the video to be displayed; wherein the second image data of the frame image is obtained based on the first image data of the frame image; wherein the first image data includes data of all primary color pixel components of the frame image, and the second image data of the frame image includes data of at least two primary color pixel components other than the first primary color pixel component corresponding to the frame image;And the display module is used for displaying the frame image according to the second image data of the frame image.
- A laser projection device, comprising: a TV signal board, a display signal board, a light source, a light modulation device, and a lens;the TV signal board is used for acquiring a video signal of a video to be displayed and analyzing the video signal of the video to be displayed to obtain first image data of a current frame image, wherein the first image data comprises data of all primary color pixel components of the frame image;the TV signal board is further used for determining a first primary color pixel component corresponding to the frame image and sending second image data of the frame image to the display signal board, wherein the second image data comprises data of at least two primary color pixel components except the first primary color pixel component corresponding to the frame image;the display signal board is used for receiving the second image data of the frame image, sending a first driving signal to the light source so that the light source sequentially provides three primary color light beams, and sending a second driving signal to the light modulation device according to the second image data of the frame image so that the light modulation device modulates the three primary color light beams provided by the light source;The lens is used for projecting and imaging the modulated three primary color light beams.
- The apparatus according to claim 10, wherein said TV signal board, when determining the corresponding first primary color pixel component of said frame image, is specifically configured to:for a current frame image of a video to be displayed, according to a first primary color pixel component corresponding to a previous frame image and a preset arrangement sequence of all primary color pixel components, taking an adjacent primary color pixel component positioned behind the first primary color pixel component corresponding to the previous frame image in the arrangement sequence as the first primary color pixel component corresponding to the frame image.
- The apparatus according to claim 10, wherein said TV signal board, when determining the corresponding first primary color pixel component of said frame image, is specifically configured to:acquiring the number of effective pixels of each primary color pixel component in the frame image;acquiring the number of effective pixels of each primary color pixel component in the previous frame image;calculating to obtain the change rate of each primary color pixel component according to the number of the effective pixels of each primary color pixel component in the frame image and the previous frame image;and taking the primary color pixel component with the smallest change rate as a first primary color pixel component corresponding to the frame image.
- The apparatus according to claim 10, wherein said TV signal board, when determining the corresponding first primary color pixel component of said frame image, is specifically configured to:triggering and executing the current frame image aiming at the video to be displayed based on a preset triggering strategy, and determining a first primary color pixel component corresponding to the frame image; wherein, the triggering strategy comprises: the triggering execution is performed for each frame image of the video to be displayed or for a predetermined number of frame images per interval.
- The device according to claim 10, wherein the display signal board, when displaying the frame image according to the second image data of the frame image, is specifically configured to:analyzing second image data of the frame image to obtain data of pixel components of at least two primary colors of the frame image;determining a first primary color pixel component corresponding to the frame image, and taking data of the first primary color pixel component corresponding to the frame image in image data of a previous frame image as data of the first primary color pixel component corresponding to the frame image;and sequentially sending data of at least two primary color pixel components of the frame image and a first primary color pixel component corresponding to the frame image to a display module so that the display module displays the frame image.
- The device according to claim 10, wherein the display signal board, when displaying the frame image according to the second image data of the frame image, is specifically configured to:analyzing second image data of each frame image of the video to be displayed, and obtaining data of pixel components of at least two primary colors of the frame image;integrating data of at least two primary color pixel components of each frame image according to the display sequence of each frame image of the video to be displayed, and sequentially sending the integrated data to a display module so that the display module displays the frame images of the video to be displayed.
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