CN114501096A - Image display method, image display device, and image display system - Google Patents
Image display method, image display device, and image display system Download PDFInfo
- Publication number
- CN114501096A CN114501096A CN202011164838.6A CN202011164838A CN114501096A CN 114501096 A CN114501096 A CN 114501096A CN 202011164838 A CN202011164838 A CN 202011164838A CN 114501096 A CN114501096 A CN 114501096A
- Authority
- CN
- China
- Prior art keywords
- frame
- frequency
- image
- initial
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000003860 storage Methods 0.000 claims abstract description 80
- 238000012545 processing Methods 0.000 claims abstract description 44
- 230000008569 process Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The embodiment of the invention discloses an image display method, an image display device and an image display system, wherein the image display method comprises the following steps: receiving an input first frame image and storing the first frame image into a first storage area; reading the first frame image from the first storage area, and performing frequency doubling processing on a first initial frame frequency of the first frame image to a target frame frequency for output and display; receiving an input second frame image and storing the second frame image into a second storage area different from the first storage area; and reading the second frame image from the second storage area, and performing frequency doubling processing on the second initial frame frequency of the second frame image until the target frame frequency is output and displayed. The embodiment of the invention can solve the problem of poor low-gray display caused by low-gray refresh rate under the condition of low frame frequency.
Description
Technical Field
The present invention relates to the field of display control technologies, and in particular, to an image display method, an image display apparatus, and an image display system.
Background
At present, with the continuous maturity of the LED display screen technology, the usage scenes of the LED display screen are mostly outdoor usage scenes such as gymnasiums, shopping malls and the like, and start to enter indoor usage scenes such as cinemas, homes and the like. The indoor use scene inevitably involves image playing with different frame rates, for example, movie materials involved in a cinema can include fast lens materials and slow lens materials, if the movie materials are required to be played on an LED display screen, the problem of switching between different frame rates needs to be solved, and when the frame rate is low and the involved low gray scale refresh rate is also low, the problem of poor display effect needs to be solved urgently.
Although the conventional image display method can solve the problem of switching different frame rates, the conventional image display method cannot solve the problem that the low gray display is not good due to the low gray refresh rate under the condition of low frame rate.
Disclosure of Invention
Accordingly, to overcome the defects and shortcomings of the prior art, embodiments of the present invention provide an image display method, an image display apparatus, and an image display system.
In one aspect, an image display method implemented in a display driver chip includes: receiving an input first frame image and storing the first frame image into a first storage area; reading the first frame image from the first storage area, and performing frequency doubling processing on a first initial frame frequency of the first frame image to a target frame frequency for output and display; receiving an input second frame image and storing the second frame image into a second storage area different from the first storage area; and reading the second frame image from the second storage area, and performing frequency doubling processing on the second initial frame frequency of the second frame image until the target frame frequency is output and displayed.
In the above scheme, the input first frame image is stored in the first storage area, the first initial frame frequency of the first frame image is subjected to frequency doubling processing to be output at a target frame frequency, the input second frame image is stored in the second storage area, and the second initial frame frequency of the second frame image is subjected to frequency doubling processing to be output at the target frame frequency, that is, when the initial frame frequency of the image is a low frame frequency, the initial frame frequency of the image is subjected to frequency doubling processing and then output and displayed, so that the corresponding low gray refresh rate is improved by improving the image frame frequency, the problem that the low gray refresh rate is low under the condition of the low frame frequency and poor low gray display is caused in the prior art can be solved, the bandwidth loss caused by frequency doubling processing at the receiving card end is avoided, and switching display of different frame frequencies is supported.
In an embodiment of the present invention, the reading the first frame image from the first storage area, and performing a frequency doubling process on the first initial frame frequency of the first frame image to a target frame frequency for output and display includes: repeatedly reading the first frame image output display corresponding to a first refresh number from the first storage area for a time corresponding to the first initial frame rate, wherein a product of the first refresh number and the first initial frame rate is equal to the target frame rate.
In an embodiment of the present invention, before the repeatedly reading the first frame image output display corresponding to the first refresh number from the first storage area within the time corresponding to the first initial frame rate, the method further includes: receiving the first initial frame frequency corresponding to the first frame image; reading the first refreshing times corresponding to the first initial frame frequency from a preset frequency multiplication table based on the first initial frame frequency.
In an embodiment of the present invention, the reading the second frame image from the second memory, and performing a frequency doubling process on the second initial frame frequency of the second frame image to the target frame frequency for output and display includes: receiving the second initial frame frequency corresponding to the second frame image; reading a second refreshing time corresponding to the second initial frame frequency from the preset frequency doubling table based on the second initial frame frequency; repeatedly reading the second frame image output display corresponding to the second refresh time from the second storage area within a time corresponding to the second initial frame frequency, wherein the second initial frame frequency is different from the first initial frame frequency, and a product of the second refresh time and the second initial frame frequency is equal to the target frame frequency.
In one embodiment of the present invention, the target frame rate is a least common multiple of the first initial frame rate and the second initial frame rate.
In an embodiment of the present invention, before the receiving the first initial frame rate corresponding to the first frame image, the method further includes: receiving an input target video source and determining a plurality of initial frame rates respectively corresponding to a plurality of frames of images contained in the target video source, wherein the first frame of image and the second frame of image are two adjacent frames of images in the plurality of frames of images, and the first initial frame rate and the second initial frame rate are two different frame rates in the plurality of initial frame rates; taking the least common multiple of the plurality of initial frame rates as the target frame rate; and determining a corresponding refreshing time based on the target frame frequency and each initial frame frequency, thereby forming the preset frequency multiplication table.
In an embodiment of the present invention, before the receiving the input first frame image, the method further includes: receiving and storing display control parameters corresponding to the target frame frequency; the frequency doubling processing of the first initial frame frequency of the first frame image to the target frame frequency for output and display includes: after the first initial frame frequency is subjected to frequency doubling processing to the target frame frequency, displaying a frequency-doubled first frame image based on the display control parameter; the frequency doubling processing of the second initial frame frequency of the second frame image to the target frame frequency for output and display includes: and after the second initial frame frequency is subjected to frequency doubling processing to the target frame frequency, displaying a frequency-doubled second frame image based on the display control parameter.
In another aspect, an embodiment of the present invention provides an image display device disposed in a display driver chip, including: the first receiving and storing module is used for receiving an input first frame image and storing the first frame image into a first storage area; the first reading frequency doubling module is used for reading the first frame of image from the first storage area, and performing frequency doubling processing on a first initial frame frequency of the first frame of image until a target frame frequency is output and displayed; the second receiving and storing module is used for receiving an input second frame image and storing the second frame image into a second storage area different from the first storage area; and the second reading frequency doubling module is used for reading the second frame image from the second storage area and performing frequency doubling processing on a second initial frame frequency of the second frame image until the second initial frame frequency is output and displayed at the target frame frequency.
In an embodiment of the present invention, the first reading frequency doubling module is specifically configured to: repeatedly reading the first frame image output display corresponding to a first refresh number from the first storage area for a time corresponding to the first initial frame rate, wherein a product of the first refresh number and the first initial frame rate is equal to the target frame rate.
In another aspect, an embodiment of the present invention provides an image display system, including a display screen control device; the display driving chip is connected with the display screen control equipment and is used for any image display method; and the display unit array is connected with the display driving chip and is used for displaying the image output by the display driving chip.
One or more of the above technical solutions may have the following advantages or beneficial effects: the method comprises the steps of storing an input first frame image into a first storage area, performing frequency doubling processing on a first initial frame frequency of the first frame image to a target frame frequency for outputting, storing an input second frame image into a second storage area, performing frequency doubling processing on a second initial frame frequency of the second frame image to a target frame frequency for outputting, namely performing frequency doubling processing on the initial frame frequency of the image when the initial frame frequency of the image is a low frame frequency, and outputting and displaying, so that the corresponding low-gray refresh rate is improved by improving the image frame frequency, the problems that the low-gray refresh rate is low under the condition of the low frame frequency and the low-gray display is poor in the prior art can be solved, the bandwidth loss caused by frequency doubling processing at a receiving card end is avoided, and different frame frequencies are supported to be switched to display.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating steps of an image displaying method according to a first embodiment of the present invention.
Fig. 2a to fig. 2c are schematic diagrams of image refreshing according to a specific implementation of an image display method according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an image display device according to a second embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an image display system according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a first embodiment of the present invention proposes an image display method implemented in a display driver chip. As shown in fig. 1, the image display method includes, for example: step S11 to step S14.
Step S11: receiving an input first frame image and storing the first frame image into a first storage area;
step S12: reading the first frame image from the first storage area, and performing frequency doubling processing on a first initial frame frequency of the first frame image to a target frame frequency for output and display;
step S13: receiving an input second frame image and storing the second frame image into a second storage area different from the first storage area;
step S14: and reading the second frame image from the second storage area, and performing frequency doubling processing on the second initial frame frequency of the second frame image until the target frame frequency is output and displayed.
The input first frame image is stored in the first storage area, the first initial frame frequency of the first frame image is subjected to frequency multiplication until the first initial frame frequency is output to the target frame frequency, the input second frame image is stored in the second storage area, and the second initial frame frequency of the second frame image is subjected to frequency multiplication until the second initial frame frequency is output to the target frame frequency, namely, when the initial frame frequency of the image is a low frame frequency, the initial frame frequency of the image is subjected to frequency multiplication and then output and displayed, so that the corresponding low-gray refresh rate is improved by improving the image frame frequency, the problem that the low-gray refresh rate is low under the condition of the low frame frequency and poor low-gray display is caused in the prior art can be solved, the bandwidth loss caused by frequency multiplication at a receiving card end is avoided, and different frame frequency switching display is supported.
In other embodiments of the present invention, step S12 includes, for example: repeatedly reading the first frame image output display corresponding to a first refresh number from the first storage area for a time corresponding to the first initial frame rate, wherein a product of the first refresh number and the first initial frame rate is equal to the target frame rate.
In the above, the first frame image with the corresponding first refreshing time is repeatedly read from the first memory at the time corresponding to the first initial frame frequency for output and display, so that the frequency multiplication processing of the first frame initial frame frequency to the target frame frequency is realized, the low gray refreshing rate of the first frame image is improved, and the problem of poor low gray display when the first initial frame frequency is the low frame frequency is solved.
In another embodiment of the present invention, before the aforementioned repeatedly reading the first frame image output display corresponding to the first refresh number from the first storage area within the time corresponding to the first initial frame rate, for example, the method further includes: receiving the first initial frame frequency corresponding to the first frame image; and reading the first refreshing times corresponding to the first initial frame frequency from a preset frequency multiplication table based on the first initial frame frequency.
The corresponding first refreshing times are read from the preset frequency multiplication table based on the first initial frame frequency, so that the flexible configuration of the first refreshing times is realized, that is, a user can configure the preset frequency multiplication table according to actual needs, and the first refreshing times are configured.
In other embodiments of the present invention, step S14 includes, for example: receiving the second initial frame frequency corresponding to the second frame image; reading a second refreshing time corresponding to the second initial frame frequency from the preset frequency doubling table based on the second initial frame frequency; and repeatedly reading the second frame image output display corresponding to the second refresh time from the second storage area within a time corresponding to the second initial frame frequency, wherein the second initial frame frequency is different from the first initial frame frequency, and a product of the second refresh time and the second initial frame frequency is equal to the target frame frequency.
The first initial frame frequency and the second initial frame frequency are different, and the product of the second refreshing time and the second initial frame frequency is equal to the target frame frequency, so that different frame frequency switching is realized, and the display consistency of different frame frequencies is ensured.
In other embodiments of the present invention, the aforementioned target frame rate is a least common multiple of the first initial frame rate and the second initial frame rate. By using the least common multiple of the first initial frame frequency and the second initial frame frequency as the target frame frequency, the stability of frequency multiplication is ensured.
In other embodiments of the present invention, before receiving the first initial frame rate corresponding to the first frame image, for example, the method further includes: receiving an input target video source and determining a plurality of initial frame rates respectively corresponding to a plurality of frames of images contained in the target video source, wherein the first frame of image and the second frame of image are two adjacent frames of images in the plurality of frames of images, and the first initial frame rate and the second initial frame rate are two different frame rates in the plurality of initial frame rates; taking the least common multiple of the plurality of initial frame rates as the target frame rate; and determining a corresponding refreshing time based on the target frame frequency and each initial frame frequency, thereby forming the preset frequency multiplication table.
The minimum common multiple of the multiple initial frame frequencies respectively corresponding to the multiple frames of images contained in the target video source is used as the target frame frequency, so that the refreshing times corresponding to each initial frame frequency are obtained, the preset frequency doubling table is further formed, a simple method for forming the preset frequency doubling table is provided, and the stability of displaying each frame of image in the target video source is guaranteed.
In other embodiments of the present invention, before step S11, for example, the method further includes: and receiving and storing the display control parameters corresponding to the target frame frequency. Step S12 includes, for example: and after the first initial frame frequency is subjected to frequency doubling processing to the target frame frequency, displaying a frequency-doubled first frame image based on the display control parameter. Step S14 includes, for example: and after the second initial frame frequency is subjected to frequency doubling processing to the target frame frequency, displaying a frequency-doubled second frame image based on the display control parameter.
In order to facilitate understanding of the present invention, the image display method disclosed in the present embodiment will be described in detail below with reference to fig. 2a to 2 c.
The display driving chip is internally provided with an SRAM which is a storage space for storing gray data, the SRAM is divided into a first storage area A and a second storage area B, and the first storage area A and the second storage area B are two independent spaces. The display driving chip receives a target video source input by the receiving card, the target video source includes, for example, multiple frames of images, and initial frame frequencies corresponding to the multiple frames of images are not, for example, identical, and for convenience of description, the multiple frames of images include a first frame of image, a second frame of image, and a third frame of image, where the first initial frame frequency corresponding to the first frame of image is, for example, 24Hz, the second initial frame frequency corresponding to the second frame of image is, for example, 48Hz, and the third initial frame frequency corresponding to the third frame of image is, for example, 144 Hz. The multi-frame image input to the display driving chip by the receiving card is input frame by frame.
The display driving chip receives a first frame image input by the receiving card, stores the first frame image into the first storage area A, reads image data corresponding to the first frame image from the first storage area A for display, and receives a second frame image input by the receiving card and stores the second frame image into the second storage area B while outputting the image data corresponding to the first frame image for display. Then the display driving chip reads out the image data corresponding to the second frame image from the second memory B for display after the first frame image is displayed, and at the same time, the display driving chip stores the third frame image input from the receiving card into the first memory area A.
Specifically, the least common multiple of the initial frame frequency corresponding to the multi-frame image is taken as the maximum supportable frame frequency of the display driving chip, i.e. the target frame frequency. As mentioned above, for example, the target frame frequency is 144Hz, before the display driver chip starts to work, the receiving card issues the display control parameter corresponding to the target frame frequency to the register of the display driver chip by means of the configuration register, where the mentioned display control parameter includes, for example: gray clock frequency, blanking time, number of gray levels implemented by each subfield, and number of sweeps.
In addition, since the register of the display driving chip is configured at first when each frame starts, the receiving card can inform the display driving chip whether to refresh the currently input frame image for multiple times and the corresponding refresh times in a mode of configuring the register. For example, the receiving card takes 144Hz as a target frame frequency, then issues the display control parameter corresponding to 144Hz to the display driving chip, thereby completing the preparation work of the display driving chip, and then the receiving card inputs images to the display driving chip frame by frame and outputs the refresh times corresponding to the images. Specifically, for example, a preset frequency doubling table is stored in the receiving card, see table 1, and the receiving card reads the corresponding refresh times from the preset frequency doubling table based on the initial frame frequency corresponding to the image and sends the refresh times to the display driving chip, as shown in table 1, where the preset frequency doubling table includes, for example, the initial frame frequency, the target frame frequency, and the corresponding refresh times. Specifically, the generation process of the preset frequency multiplication table includes, for example: determining a plurality of initial frame rates respectively corresponding to a plurality of frames of images contained in an input target video source; taking the least common multiple of the plurality of initial frame rates as the target frame rate; and determining a corresponding refreshing time based on the target frame frequency and each initial frame frequency, thereby forming the preset frequency multiplication table. Taking the foregoing example as an example, the first initial frame frequency of the first frame image is 24Hz, the second initial frame frequency corresponding to the second frame image is 48Hz, and the third initial frame frequency corresponding to the third frame image is 144Hz, so that if the target frame frequency is determined to be 144Hz, the first refresh frequency corresponding to the first frame image is calculated to be 144/24 times or equal to 6 times, the second refresh frequency corresponding to the second frame image is calculated to be 144/48 times or equal to 3 times, and the third refresh frequency corresponding to the third frame image is calculated to be 144/144 times or equal to 1 time.
TABLE 1 Preset frequency multiplier
| Initial frame frequency (Hz) | 24 | 48 | 72 | 144 |
| Number of refreshes | 6 | 3 | 2 | 1 |
| Target frame frequency (Hz) | 144 | 144 | 144 | 144 |
As shown in fig. 2a, after the display driving chip stores the input first frame image in the first storage area a, the first refresh time corresponding to receiving the first frame image is 6 times, and then the display driving chip will repeatedly read the image data in the first storage area a within the time corresponding to the first initial frame frequency 24Hz to perform multiple refreshing of the image and the refresh completion time is 6 times, that is, repeatedly read the image data in the first storage area a 6 times, thereby completing the frequency doubling processing on the first initial frame frequency to the target frame frequency. At this time, in the process of completing the refresh of the first frame image 6 times, for example, when the first complete refresh is performed, the image data corresponding to the next frame image, that is, the second frame image, is stored in the second storage area B.
As shown in fig. 2B, the display driver chip stores the second frame image in the second storage area B, and after the first frame image is displayed, the display driver chip receives 3 times of second refreshing times corresponding to the second frame image, and then the display driver chip repeatedly reads the image data in the second storage area B to perform multiple refreshing of the image, and the number of times of refreshing is 3 times, that is, repeatedly reads the image data in the second storage area B3 times, thereby completing the frequency doubling processing on the second initial frame frequency to the target frame frequency. At this time, in the process of completing the refresh of the second frame image 3 times, for example, when the first complete refresh is performed, the image data corresponding to the next frame image, that is, the third frame image is stored in the first storage area a.
As shown in fig. 2c, the display driver chip stores the third frame image in the first storage area a to cover the image data that was stored before, and after the second frame image is displayed, for example, the number of times of receiving the third refresh is 1, it indicates that the third frame image does not need to be refreshed many times, that is, after the third frame image is stored in the first storage area a, the image data in the first storage area a is read and refreshed once, and at this time, it may also be understood that the third initial frame frequency is frequency doubled, and only the coefficient of the frequency doubling is 1.
It should be noted that the aforementioned steps of setting the preset frequency doubling table for the receiving card and obtaining the refresh times based on the preset frequency doubling table may also be implemented inside the display driving chip, and the aforementioned image frame number, initial frame frequency, target frame frequency and refresh times are only for better understanding of the embodiment.
In summary, in the image display method disclosed in this embodiment, the input first frame image is stored in the first storage area, the first initial frame frequency of the first frame image is frequency-doubled to the target frame frequency for output, the input second frame image is stored in the second storage area, and the second initial frame frequency of the second frame image is frequency-doubled to the target frame frequency for output, that is, when the initial frame frequency of the image is a low frame frequency, the initial frame frequency of the image is frequency-doubled and then output for display, so that the corresponding low-gray refresh rate is increased by increasing the image frame frequency, the problem that the low-gray refresh rate is low under the condition of the low frame frequency and the low-gray display is not good in the prior art can be solved, the bandwidth loss caused by the frequency doubling at the receiving card end is avoided, and the display is switched over for different frame frequencies is supported.
[ second embodiment ]
Referring to fig. 3, a second embodiment of the present invention discloses an image display device. The image display device 20 is provided in, for example, a display driver chip, and as shown in fig. 3, for example, includes: a first receiving and storing module 21, a first reading frequency doubling module 22, a second receiving and storing module 23 and a second reading frequency doubling module 24.
The first receiving and storing module 21 is configured to receive an input first frame image and store the first frame image into a first storage area. The first reading frequency doubling module 22 is configured to read the first frame image from the first storage area, and perform frequency doubling processing on the first initial frame frequency of the first frame image to a target frame frequency for output and display. The second receiving and storing module 23 is configured to receive an input second frame image and store the second frame image in a second storage area different from the first storage area. The second reading and frequency doubling module 24 is configured to read the second frame image from the second storage area, and perform frequency doubling processing on the second initial frame frequency of the second frame image until the target frame frequency is output and displayed.
The method comprises the steps of storing an input first frame image into a first storage area, carrying out frequency doubling processing on a first initial frame frequency of the first frame image to a target frame frequency for outputting, storing an input second frame image into a second storage area, carrying out frequency doubling processing on a second initial frame frequency of the second frame image to a target frame frequency for outputting, namely, carrying out frequency doubling processing on the initial frame frequency of the image when the initial frame frequency of the image is a low frame frequency, and then outputting and displaying, so that the corresponding low-gray refresh rate is improved by improving the image frame frequency, the problem that the low-gray refresh rate is low under the condition of the low frame frequency and the low-gray display is not good in the prior art can be solved, the bandwidth loss caused by frequency doubling processing at a receiving card end is avoided, and different frame frequency switching display is supported.
In other embodiments of the present invention, the first reading frequency doubling module 22 is specifically configured to repeatedly read the first frame image output display corresponding to the first refreshing time from the first storage area within the time corresponding to the first initial frame frequency, where a product of the first refreshing time and the first initial frame frequency is equal to the target frame frequency.
The first frame image of the corresponding first refreshing times is repeatedly read from the first memory at the time corresponding to the first initial frame frequency for output and display, so that the first frame initial frame frequency is frequency-doubled to the target frame frequency, the low-gray refreshing rate of the first frame image is improved, and the problem of poor low-gray display when the first initial frame frequency is the low frame frequency is solved.
In other embodiments of the present invention, before the first reading frequency doubling module 22 repeatedly reads the first frame image corresponding to the first refreshing time from the first storage area within the time corresponding to the first initial frame frequency for output and display, the first reading frequency doubling module is further configured to: receiving the first initial frame frequency corresponding to the first frame image; and reading the first refreshing times corresponding to the first initial frame frequency from a preset frequency multiplication table based on the first initial frame frequency.
The corresponding first refreshing times are read from the preset frequency multiplication table based on the first initial frame frequency, so that the flexible configuration of the first refreshing times is realized, that is, a user can configure the preset frequency multiplication table according to actual needs, and the first refreshing times are configured.
In other embodiments of the present invention, the second read frequency doubling module 24 is specifically configured to: receiving the second initial frame frequency corresponding to the second frame image; reading a second refreshing time corresponding to the second initial frame frequency from the preset frequency doubling table based on the second initial frame frequency; repeatedly reading the second frame image output display corresponding to the second refresh number from the second storage area within a time corresponding to the second initial frame frequency, wherein the second initial frame frequency is different from the first initial frame frequency, and a product of the second refresh number and the second initial frame frequency is equal to the target frame frequency.
The first initial frame frequency and the second initial frame frequency are different, and the product of the second refreshing time and the second initial frame frequency is equal to the target frame frequency, so that different frame frequency switching is realized, and the display consistency of different frame frequencies is ensured.
In other embodiments of the present invention, the target frame rate is a least common multiple of the first initial frame rate and the second initial frame rate. By using the least common multiple of the first initial frame frequency and the second initial frame frequency as the target frame frequency, the stability of frequency multiplication is ensured.
In other embodiments of the present invention, the image display apparatus further includes: the device comprises a frequency multiplication table forming module, a frequency multiplication table forming module and a frequency multiplication table forming module, wherein the frequency multiplication table forming module is used for receiving an input target video source and determining a plurality of initial frame frequencies respectively corresponding to a plurality of frames of images contained in the target video source, the first frame image and the second frame image are two adjacent frames of images in the plurality of frames of images, and the first initial frame frequency and the second initial frame frequency are two different frame frequencies in the plurality of initial frame frequencies; taking the least common multiple of the plurality of initial frame rates as the target frame rate; and determining a corresponding refreshing time based on the target frame frequency and each initial frame frequency, thereby forming the preset frequency multiplication table.
The minimum common multiple of the multiple initial frame frequencies respectively corresponding to the multiple frames of images contained in the target video source is used as the target frame frequency, so that the refreshing times corresponding to each initial frame frequency are obtained, the preset frequency doubling table is further formed, a simple method for forming the preset frequency doubling table is provided, and the stability of displaying each frame of image in the target video source is guaranteed.
In other embodiments of the present invention, the image display device 20 further includes: and the parameter receiving module is used for receiving and storing the display control parameters corresponding to the target frame frequency. The aforementioned first reading frequency doubling module 22 is configured to perform frequency doubling processing on the first initial frame frequency of the first frame image to a target frame frequency, and output and display the target frame frequency, and specifically includes: and after the first initial frame frequency is subjected to frequency doubling processing to the target frame frequency, displaying a frequency-doubled first frame image based on the display control parameter. The aforementioned second reading and frequency doubling module 24 is configured to perform frequency doubling processing on the second initial frame frequency of the second frame image to the target frame frequency, and output and display the target frame frequency, and specifically includes: and after the second initial frame frequency is subjected to frequency doubling processing to the target frame frequency, displaying a frequency-doubled second frame image based on the display control parameter.
The image display method implemented by the image display device 20 disclosed in this embodiment is as described in the first embodiment, and therefore, will not be described in detail here. Optionally, each module, unit and other operations or functions in the second embodiment are respectively for implementing the method in the first embodiment of the present invention, and the technical effect of the image display device 20 disclosed in this embodiment is the same as that of the image display method disclosed in the first embodiment, and for brevity, no further description is given here.
[ third embodiment ]
Referring to fig. 4, a third embodiment of the present invention provides an image display system. As shown in fig. 4, the image display system 30 includes, for example: a display screen control device 31, a display driving chip 32, and a display cell array 33.
The display driver chip 32 is connected to the display screen control device 31, wherein the display driver chip 32 is configured to execute the image display method disclosed in the foregoing first embodiment. The display unit array 33 is connected to the display driving chip 32, and is used for displaying the image output by the display driving chip 32.
Specifically, the display screen control device 31 includes, for example: the system controller comprises an upper computer, a system controller connected with the upper computer and a module controller connected with the system controller, wherein the system controller is a sending card in an LED display screen control system and comprises a video input interface, a microcontroller, a programmable logic device and a volatile memory. The programmable logic device is respectively connected with the microcontroller and the volatile memory. The Programmable logic device may be, for example, an FPGA (Field Programmable Gate Array), which is mainly used to decode, process (e.g., cut) images received from a video source of an upper computer under the control of the microcontroller and output the processed images to the module controller. The microcontroller may be, for example, an MCU, which is primarily used to load a programmable logic device program, communicate with the outside, transmit control instructions, and so forth. Volatile memory, which may be, for example, SDRAM or DDR, is used to cache data for operation of the system controller, and in particular, the programmable logic device. Of course, the system controller may also include a video transmission interface such as a DP/HDMI/DVI video interface, and the invention is not limited thereto.
The module controller is, for example, a receiving card in an LED display screen control system, which includes, for example, a microcontroller and a programmable logic device electrically connected to the microcontroller. The programmable logic device is, for example, an FPGA, and is mainly used to perform processing such as correction on image data output by the system controller under the control of the microcontroller, convert the image data into display data, and output the display data to the display driving chip. The microcontroller may be, for example, an MCU, which is primarily used to load a programmable logic device program, communicate with the outside, transmit control instructions, and so forth. Of course, the module controller may further include other components, such as an image data input interface, for example, an ethernet interface, a volatile memory, a target image frame and a control signal interface, etc., and the present invention is not limited thereto.
The display driving chip 32 includes, for example, a register, an SRAM connected to the register, and a constant current source output circuit, and is mainly used for driving the display cell array to display an image. The display unit array 33 includes, for example, a plurality of LED light points.
In addition, it should be understood that the foregoing embodiments are merely exemplary of the present invention, and the technical solutions of the embodiments may be arbitrarily combined and used without conflict and contradiction in technical features and without departing from the purpose of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of one logic function, and an actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may also be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An image display method implemented in a display driver chip, the image display method comprising:
receiving an input first frame image and storing the first frame image into a first storage area;
reading the first frame image from the first storage area, and performing frequency doubling processing on a first initial frame frequency of the first frame image to a target frame frequency for output and display;
receiving an input second frame image and storing the second frame image into a second storage area different from the first storage area;
and reading the second frame image from the second storage area, and performing frequency doubling processing on the second initial frame frequency of the second frame image until the target frame frequency is output and displayed.
2. The image display method according to claim 1, wherein the reading the first frame image from the first storage area and performing a frequency doubling process on the first initial frame frequency of the first frame image to a target frame frequency for output display comprises:
repeatedly reading the first frame image output display corresponding to a first refresh number from the first storage area for a time corresponding to the first initial frame rate, wherein a product of the first refresh number and the first initial frame rate is equal to the target frame rate.
3. The image display method according to claim 2, wherein before said repeatedly reading the image output display of the first frame corresponding to the first refresh number from the first storage area within the time corresponding to the first initial frame rate, further comprising:
receiving the first initial frame frequency corresponding to the first frame image;
reading the first refreshing times corresponding to the first initial frame frequency from a preset frequency multiplication table based on the first initial frame frequency.
4. The method according to claim 3, wherein said reading the second frame image from the second memory and performing a frequency doubling process on the second initial frame frequency of the second frame image to the target frame frequency for output display comprises:
receiving the second initial frame frequency corresponding to the second frame image;
reading a second refreshing time corresponding to the second initial frame frequency from the preset frequency doubling table based on the second initial frame frequency;
repeatedly reading the second frame image output display corresponding to the second refresh time from the second storage area within a time corresponding to the second initial frame frequency, wherein the second initial frame frequency is different from the first initial frame frequency, and a product of the second refresh time and the second initial frame frequency is equal to the target frame frequency.
5. The image display method according to claim 1, wherein the target frame rate is a least common multiple of the first initial frame rate and the second initial frame rate.
6. The image display method according to claim 3, further comprising, before said receiving the first initial frame rate for the first frame image:
receiving an input target video source and determining a plurality of initial frame rates respectively corresponding to a plurality of frames of images contained in the target video source, wherein the first frame of image and the second frame of image are two adjacent frames of images in the plurality of frames of images, and the first initial frame rate and the second initial frame rate are two different frame rates in the plurality of initial frame rates;
taking the least common multiple of the plurality of initial frame rates as the target frame rate; and
and determining corresponding refreshing times based on the target frame frequency and each initial frame frequency so as to form the preset frequency multiplication table.
7. The image display method according to claim 1, further comprising, before the receiving of the input first frame image: receiving and storing display control parameters corresponding to the target frame frequency;
the frequency doubling processing of the first initial frame frequency of the first frame image to the target frame frequency for output and display includes: after the first initial frame frequency is subjected to frequency doubling processing to the target frame frequency, displaying a frequency-doubled first frame image based on the display control parameter;
the frequency doubling processing of the second initial frame frequency of the second frame image to the target frame frequency for output and display includes: and after the second initial frame frequency is subjected to frequency doubling processing to the target frame frequency, displaying a frequency-doubled second frame image based on the display control parameter.
8. An image display device provided in a display driver chip, the image display device comprising:
the first receiving and storing module is used for receiving an input first frame image and storing the first frame image into a first storage area;
the first reading frequency doubling module is used for reading the first frame of image from the first storage area, and performing frequency doubling processing on a first initial frame frequency of the first frame of image until a target frame frequency is output and displayed;
the second receiving and storing module is used for receiving an input second frame image and storing the second frame image into a second storage area different from the first storage area;
and the second reading frequency doubling module is used for reading the second frame image from the second storage area and performing frequency doubling processing on a second initial frame frequency of the second frame image until the second initial frame frequency is output and displayed at the target frame frequency.
9. The image display device according to claim 8, wherein the first reading frequency doubling module is specifically configured to: repeatedly reading the first frame image output display corresponding to a first refresh number from the first storage area for a time corresponding to the first initial frame rate, wherein a product of the first refresh number and the first initial frame rate is equal to the target frame rate.
10. An image display system, comprising:
a display screen control device;
a display driver chip connected to the display screen control device, wherein the display driver chip is configured to perform the image display method according to any one of claims 1 to 7; and
and the display unit array is connected with the display driving chip and is used for displaying the image output by the display driving chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011164838.6A CN114501096A (en) | 2020-10-27 | 2020-10-27 | Image display method, image display device, and image display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011164838.6A CN114501096A (en) | 2020-10-27 | 2020-10-27 | Image display method, image display device, and image display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114501096A true CN114501096A (en) | 2022-05-13 |
Family
ID=81471344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011164838.6A Pending CN114501096A (en) | 2020-10-27 | 2020-10-27 | Image display method, image display device, and image display system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114501096A (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499836A (en) * | 2002-11-07 | 2004-05-26 | ������������ʽ���� | Change of frame velocity corresponding to image data |
| CN101154368A (en) * | 2006-09-26 | 2008-04-02 | Nec液晶技术株式会社 | Liquid crystal display device |
| KR20080064243A (en) * | 2007-01-04 | 2008-07-09 | 삼성전자주식회사 | Driving apparatus of display device |
| CN102413341A (en) * | 2010-09-17 | 2012-04-11 | 三星电子株式会社 | Method of processing image data and display device |
| CN203179472U (en) * | 2013-03-12 | 2013-09-04 | 惠州雷曼光电科技有限公司 | Drive device used for image display and display system |
| CN103634585A (en) * | 2012-08-24 | 2014-03-12 | 青岛海信电器股份有限公司 | Method and device for image display, and television |
| CN105185284A (en) * | 2014-05-30 | 2015-12-23 | 辉达公司 | Dynamic Frame Repetition In A Variable Refresh Rate System |
| CN105489171A (en) * | 2016-01-14 | 2016-04-13 | 青岛海信电器股份有限公司 | Liquid crystal display device and backlight control method thereof |
| CN107545863A (en) * | 2017-08-24 | 2018-01-05 | 胡艳萍 | Show the method, display frequency regulation and control method and display device of entire image |
| CN109903721A (en) * | 2019-04-10 | 2019-06-18 | 中国电子科技集团公司第五十八研究所 | A kind of LED drive circuit based on frequency multiplication OS-PWM algorithm |
| CN110570793A (en) * | 2019-08-05 | 2019-12-13 | 武汉精立电子技术有限公司 | testing method and device adaptive to different types of display screens and terminal equipment |
| CN111263193A (en) * | 2020-01-21 | 2020-06-09 | 北京三体云联科技有限公司 | Video frame up-down sampling method and device, and video live broadcasting method and system |
| CN111314685A (en) * | 2020-02-17 | 2020-06-19 | 深圳市时代华影科技股份有限公司 | LED video display system and display method thereof |
| CN111464757A (en) * | 2019-01-21 | 2020-07-28 | 西安诺瓦电子科技有限公司 | Video processing method, device and system |
| CN111464851A (en) * | 2020-04-08 | 2020-07-28 | 上海晨驭信息科技有限公司 | System for watching multichannel multi-frame-rate video through same-screen display |
| CN111489685A (en) * | 2020-01-22 | 2020-08-04 | 南京浣轩半导体有限公司 | Multi-line scanning L ED gray scale switching display method and system |
| CN111669648A (en) * | 2020-06-19 | 2020-09-15 | 艾索信息股份有限公司 | Video frequency doubling method |
-
2020
- 2020-10-27 CN CN202011164838.6A patent/CN114501096A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499836A (en) * | 2002-11-07 | 2004-05-26 | ������������ʽ���� | Change of frame velocity corresponding to image data |
| CN101154368A (en) * | 2006-09-26 | 2008-04-02 | Nec液晶技术株式会社 | Liquid crystal display device |
| KR20080064243A (en) * | 2007-01-04 | 2008-07-09 | 삼성전자주식회사 | Driving apparatus of display device |
| CN102413341A (en) * | 2010-09-17 | 2012-04-11 | 三星电子株式会社 | Method of processing image data and display device |
| CN103634585A (en) * | 2012-08-24 | 2014-03-12 | 青岛海信电器股份有限公司 | Method and device for image display, and television |
| CN203179472U (en) * | 2013-03-12 | 2013-09-04 | 惠州雷曼光电科技有限公司 | Drive device used for image display and display system |
| CN105185284A (en) * | 2014-05-30 | 2015-12-23 | 辉达公司 | Dynamic Frame Repetition In A Variable Refresh Rate System |
| CN105489171A (en) * | 2016-01-14 | 2016-04-13 | 青岛海信电器股份有限公司 | Liquid crystal display device and backlight control method thereof |
| CN107545863A (en) * | 2017-08-24 | 2018-01-05 | 胡艳萍 | Show the method, display frequency regulation and control method and display device of entire image |
| CN111464757A (en) * | 2019-01-21 | 2020-07-28 | 西安诺瓦电子科技有限公司 | Video processing method, device and system |
| CN109903721A (en) * | 2019-04-10 | 2019-06-18 | 中国电子科技集团公司第五十八研究所 | A kind of LED drive circuit based on frequency multiplication OS-PWM algorithm |
| CN110570793A (en) * | 2019-08-05 | 2019-12-13 | 武汉精立电子技术有限公司 | testing method and device adaptive to different types of display screens and terminal equipment |
| CN111263193A (en) * | 2020-01-21 | 2020-06-09 | 北京三体云联科技有限公司 | Video frame up-down sampling method and device, and video live broadcasting method and system |
| CN111489685A (en) * | 2020-01-22 | 2020-08-04 | 南京浣轩半导体有限公司 | Multi-line scanning L ED gray scale switching display method and system |
| CN111314685A (en) * | 2020-02-17 | 2020-06-19 | 深圳市时代华影科技股份有限公司 | LED video display system and display method thereof |
| CN111464851A (en) * | 2020-04-08 | 2020-07-28 | 上海晨驭信息科技有限公司 | System for watching multichannel multi-frame-rate video through same-screen display |
| CN111669648A (en) * | 2020-06-19 | 2020-09-15 | 艾索信息股份有限公司 | Video frequency doubling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5144802B1 (en) | Display device | |
| CN106941617B (en) | Video processing apparatus and multi-window screen display method | |
| CN105828183A (en) | Video frame processing method, video processing chip and motion estimate and motion compensation MEMC chip | |
| US10389908B2 (en) | Image processing device, image processing method, and program with reduction and enlargement scaling of image data | |
| US20130187832A1 (en) | Display apparatus and method for controlling the same | |
| US20220345769A1 (en) | Image data processing device and method, and display device | |
| CN108055578A (en) | A kind of image processing method, device and vision signal splicing device | |
| US20220014649A1 (en) | Scaler, display device and associated data processing method | |
| CN108810648A (en) | A kind of method and terminal carrying out image procossing | |
| CN111464757A (en) | Video processing method, device and system | |
| US9135672B2 (en) | Display system and data transmission method thereof | |
| CN105657489A (en) | Audio/video playing equipment | |
| CN212137804U (en) | Point-to-point video splicing system | |
| CN114501096A (en) | Image display method, image display device, and image display system | |
| CN111506241A (en) | Special effect display method and device for live broadcast room, electronic equipment and computer medium | |
| US20210035537A1 (en) | Full-screen displays | |
| CN112351267A (en) | Video display method, display controller, display control card and display control system | |
| CN105812923A (en) | Play processing method and device based on video on demand | |
| CN105491363A (en) | LED panel pixel correction method and apparatus | |
| CN112995559A (en) | Video processing method, device and system, display controller and display control system | |
| CN113012657A (en) | Layer processing method and device, video processing equipment and computer readable storage medium | |
| CN114173054A (en) | Multi-frame frequency splicing video source display control method and system and LED display system | |
| JP2001136412A (en) | Gamma correction circuit for a plurality of video display devices | |
| CN117061789B (en) | Video transmission frame, method, device and storage medium | |
| JP2019186767A (en) | Video processing apparatus, video processing method, television receiver, control program, and recording medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |