CN109189359B - Main resolution input control method and system for display equipment and storage medium - Google Patents
Main resolution input control method and system for display equipment and storage medium Download PDFInfo
- Publication number
- CN109189359B CN109189359B CN201811237714.9A CN201811237714A CN109189359B CN 109189359 B CN109189359 B CN 109189359B CN 201811237714 A CN201811237714 A CN 201811237714A CN 109189359 B CN109189359 B CN 109189359B
- Authority
- CN
- China
- Prior art keywords
- display
- resolution
- computer
- display equipment
- card
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/39—Control of the bit-mapped memory
- G09G5/391—Resolution modifying circuits, e.g. variable screen formats
Abstract
The invention discloses a method, a system and a storage medium for controlling the input of main resolution of display equipment, wherein the method comprises the following steps: the display equipment receives an instruction for modifying the resolution parameter sent by the computer display card; the display equipment calculates the detail timing parameter value of the expanded display identification data according to the resolution parameter of the instruction; the display equipment updates and stores the content of the extended display identification data, and the computer display card reads the value of the extended display identification data again; and the computer display card updates the latest main resolution and serves as an input source to be sent to the display equipment to finish point-to-point display. According to any resolution ratio set by the computer display card, the invention modifies the extended display identification data content of the corresponding channel of the display equipment in real time, so that the physical resolution ratio of the display equipment is changed into any resolution ratio matched with the computer display card, thereby realizing the point-to-point display of the computer source image.
Description
Technical Field
The invention relates to the technical field of video display, in particular to a method, a system and a storage medium for controlling the input of main resolution of display equipment.
Background
In recent years, LED display screens and related technologies have been developed dramatically, and in places such as open streets, shopping malls, train stations, waiting rooms, movie theaters and the like, the smart pictures of the LED screens can be seen and played, and the LED display screens have incomparable advantages in aspects of safety, long service life, high brightness, vivid color, small heat productivity, environmental protection, capability of being large or small, convenience in installation and the like.
With the development of display technology, people have higher and higher requirements on display effect, and point-to-point display is the best method for displaying images to users without loss. In general, in a display device with fixed pixels, the resolution of an imaging device is fixed, and this resolution is referred to as "physical resolution". Pixels are the basic units that make up an image, and their pixels can only appear in a one-to-one mapping, i.e., point-to-point display, when the resolution of the image or signal source is exactly the same as the physical resolution of the display, thereby allowing the display device to be perfectly matched to the source image.
Currently, the mainstream liquid crystal display devices in the market mainly have two resolutions of 1920x1080 and 1366x768, if a computer is used as a video source of the display device, point-to-point display is generally required to be achieved, so that the best effect of the image source can be shown to a user, and whether the point-to-point display of the computer image source on the display device can be realized or not is mainly determined by the interaction between the display device and a computer display card.
Because the LED screen is usually designed according to the size of the actual display field, the screen resolutions are various, and the conventional display method can only scale the resolutions of the image and video of the input source and the resolution of the LED display screen by a certain ratio, thereby causing the content loss of the image and video, and especially when the scaling ratio is large, the picture loss is particularly serious.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The present invention provides a method, a system and a storage medium for controlling the input of the main resolution of a display device, which modify the content of extended display identification data of a channel corresponding to the display device in real time according to any resolution set by a computer graphics card, so that the physical resolution of the display device is changed into any resolution matched with the computer graphics card, thereby implementing point-to-point display of a computer source image.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a display device primary resolution input control method, wherein the display device primary resolution input control method comprises:
the display equipment receives an instruction for modifying the resolution parameter sent by the computer display card;
the display equipment calculates the detail timing parameter value of the expanded display identification data according to the resolution parameter of the instruction;
the display equipment updates and stores the content of the extended display identification data, and the computer display card reads the value of the extended display identification data again;
and the computer display card updates the latest main resolution and serves as an input source to be sent to the display equipment to finish point-to-point display.
The method for controlling the input of the main resolution of the display equipment comprises the following steps of:
the display device receives a resolution setting instruction input by a user in advance, and a display panel in the display device sets any standard VESA resolution or any size of non-standard VESA resolution according to the resolution setting instruction.
The display device main resolution input control method, wherein the standard VESA resolution includes: 1920x1080, 1366x768, and 1280x 768; the non-standard VESA resolutions include 2000x1000, 800x800, and 400x 600.
The method for controlling the input of the main resolution of the display equipment comprises the following steps that the step that the display equipment receives a command for modifying the resolution parameters sent by a computer display card specifically comprises the following steps:
the computer display card finishes the current primary resolution ratio change in advance and sends a resolution ratio parameter modification instruction to the display equipment;
and the board card of the display equipment receives the instruction sent by the computer display card.
The method for controlling the main resolution input of the display device, wherein the step of calculating, by the display device, the detail timing parameter value of the extended display identification data according to the resolution parameter of the instruction specifically includes:
the display equipment acquires a resolution parameter in the received instruction and judges whether the resolution parameter is a standard resolution specified by VESA;
if yes, calculating to obtain a detail timing parameter value according to a standard resolution parameter table provided by the VESA;
if not, calculating the value of the Pixel Clock according to the formula of Pixel Clock = (Hactive +168) × (Vactive +45) × Vfreq, wherein the Pixel Clock is the Pixel Clock, Hactive is the resolution width, Vactive is the resolution height, and Vfreq is the frequency.
The method for controlling the input of the main resolution of the display device comprises the following steps that the display device updates and stores the content of the extended display identification data, and the step that the computer display card reads the value of the extended display identification data again specifically comprises the following steps:
after calculating to obtain new extended display identification data parameter information, the display equipment updates and stores a new extended display identification data array of the current channel;
and the computer display card reads the content of the expanded display identification data again and sends the changed main resolution signal to the display equipment.
The method for controlling the input of the main resolution of the display device comprises the following steps that the display device updates and stores the content of the extended display identification data, and the computer display card reads the value of the extended display identification data again:
and when the display equipment detects that the external EEPROM is available, writing the updated contents of the extended display identification data into the EEPROM of the corresponding channel.
The input control method for the main resolution of the display equipment is characterized in that the computer display card updates the latest main resolution and serves as an input source to be sent to the display equipment, and the completion of the point-to-point display specifically comprises the following steps:
the computer display card updates the latest main resolution and is used as an input source to send a main resolution signal to the display equipment;
and updating the physical resolution of the display equipment to the latest main resolution to finish point-to-point display of the computer source image on the display equipment.
A display device primary resolution input control system, wherein the display device primary resolution input control system comprises: a computer display card and a display device;
the computer display card is used for setting a new resolution and sending an instruction for modifying the resolution parameter to the display equipment;
the display equipment is used for calculating the detail timing parameter value of the extended display identification data according to the resolution parameter of the instruction, updating the content of the extended display identification data and storing the content;
the computer display card is also used for re-reading the value of the extended display identification data, updating the latest main resolution and sending the updated main resolution to the display equipment as an input source;
and the display equipment is also used for finishing point-to-point display of the computer source image on the display equipment according to the input source sent by the computer display card.
A storage medium, wherein the storage medium stores a display device primary resolution input control program, which when executed by a processor implements the steps of the display device primary resolution input control method as described above.
The invention discloses a method, a system and a storage medium for controlling the input of main resolution of display equipment, wherein the method comprises the following steps: the display equipment receives an instruction for modifying the resolution parameter sent by the computer display card; the display equipment calculates the detail timing parameter value of the expanded display identification data according to the resolution parameter of the instruction; the display equipment updates and stores the content of the extended display identification data, and the computer display card reads the value of the extended display identification data again; and the computer display card updates the latest main resolution and serves as an input source to be sent to the display equipment to finish point-to-point display. According to any resolution ratio set by the computer display card, the invention modifies the extended display identification data content of the corresponding channel of the display equipment in real time, so that the physical resolution ratio of the display equipment is changed into any resolution ratio matched with the computer display card, thereby realizing the point-to-point display of the computer source image.
Drawings
FIG. 1 is a flow chart of a preferred embodiment of a primary resolution input control method of a display device according to the present invention;
FIG. 2 is a flowchart of step S10 in the preferred embodiment of the method for controlling the main resolution input of the display device according to the present invention;
FIG. 3 is a flowchart of step S20 in the preferred embodiment of the method for controlling the main resolution input of the display device according to the present invention;
FIG. 4 is a flowchart of step S30 in the preferred embodiment of the method for controlling the main resolution input of the display device according to the present invention;
FIG. 5 is a flowchart of step S40 in the preferred embodiment of the method for controlling the main resolution input of the display device according to the present invention;
FIG. 6 is an operation diagram of the display device main resolution input control method according to the present invention, in which some fixed standard VESA resolutions are set in the display card panel;
FIG. 7 is a schematic diagram illustrating an operation of setting an arbitrary resolution in a graphics card panel according to the preferred embodiment of the present invention;
FIG. 8 is a schematic diagram of a preferred embodiment of the primary resolution input control system of the display device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention mainly relates to the field of video display, the field of large-screen splicing display, in particular to the field of LED display of irregular resolution ratio display; the invention is a method for dynamically modifying EDID content of display equipment by receiving an instruction of changing the current main resolution by a computer display card, thereby modifying the input main resolution into any VESA resolution or any other resolution with any size, so that videos or pictures with any resolution can be displayed on the display equipment in a point-to-point mode, and the method can be applied to a plurality of fields; for example, in the field of video display and LED display, the system can be used in community media systems, hotel rental systems, security monitoring systems, building screen systems, theme park systems, smart city systems, video conference systems, and the like.
As shown in fig. 1, the method for controlling input of main resolution of a display device according to a preferred embodiment of the present invention includes the following steps:
and step S10, the display equipment receives the command of modifying the resolution parameter sent by the computer display card.
Specifically, the step S10 is preceded by: the display device receives a resolution setting instruction input by a user in advance, and a display panel in the display device sets a VESA (Video Electronics Standards Association) resolution of any standard or a nonstandard VESA resolution of any size according to the resolution setting instruction. Wherein the standard VESA resolution comprises: 1920x1080, 1366x768, and 1280x 768; the non-standard VESA resolutions include 2000x1000, 800x800, and 400x 600.
That is, some fixed standard VESA resolutions may be set in the graphics card panel, for example, a series of VESA-specified standard resolutions such as 1920x1080, 1366x768, etc.; some newer graphics cards also support setting of resolution settings of any size, such as any resolution settings of 2000x1000, 800x800, etc.
Please refer to fig. 2, which is a flowchart of step S10 in the method for controlling the main resolution input of the display device according to the present invention.
As shown in fig. 2, the step S10 includes:
s11, the computer display card completes the current primary resolution change in advance, and sends the command of modifying the resolution parameter to the display device;
s12, the board card of the display device receives the instruction sent by the computer display card.
And step S20, the display device calculates the detail timing parameter value of the expansion display identification data according to the resolution parameter of the instruction.
Specifically, after the computer graphics card completes the modification of the current main resolution, the board card of the Display device receives the instruction sent by the graphics card, and then calculates EDID (Extended Display Identification Data, which is a VESA standard Data format, according to the received instruction parameters, and includes parameters related to the monitor and its performance, including supplier information, maximum image size, color setting, manufacturer preset, limit of frequency range, and character string of Display name and serial number), parameter information of detail timing, that is, 18 byte parameters shown in bold font in table 1 below:
TABLE 1
The rule for its calculation is as follows in table 2:
if the standard resolution is specified by VESA, a detail timing parameter value can be calculated according to a standard resolution parameter table provided by VESA; if the resolution is not standard, such as 800x800, the value of Pixel Clock is calculated according to the formula Pixel Clock = (Hactive +168) × (Vactive +45) × Vfreq, wherein Hactive is the width of resolution, Vactive is the height of resolution, Vfreq is frequency, and other parameters are filled in with reference to the parameters of 1920x 1080.
Please refer to fig. 3, which is a flowchart of step S20 in the method for controlling the main resolution input of the display device according to the present invention.
As shown in fig. 3, the step S20 includes:
s21, the display equipment acquires the resolution parameter in the received instruction and judges whether the resolution parameter is the standard resolution specified by VESA;
s211, if yes, calculating to obtain a detail timing parameter value according to a standard resolution parameter table provided by VESA;
if not, calculating the value of the Pixel Clock according to a formula of Pixel Clock = (Hactive +168) × (Vactive +45) × Vfreq, wherein the Pixel Clock is the Pixel Clock, the Hactive is the resolution width, the Vactive is the resolution height, and the Vfreq is the frequency.
And step S30, the display device updates and stores the content of the extended display identification data, and the computer display card reads the value of the extended display identification data again.
Specifically, after new EDID parameter information is obtained through calculation, a new EDID array of the current channel is stored, if the channel has a corresponding plug-in EEPROM memory chip, the WP pin of the channel is pulled down, the new EDID array is written into the EEPROM in an I2C mode to cover the original data in the chip, and then the WP pin is pulled up to a protection state.
After the EDID data is updated, setting the hot plug according to the high-low state of the channel hot plug, if the hot plug is high when the channel picture is normally displayed by the display equipment, firstly pulling down the hot plug, delaying for about 200 microseconds, and then pulling up the high hot plug; if the hot plug is low during normal display, the program first pulls high the hot plug, delays for about 200 microseconds, and then pulls low the hot plug.
Please refer to fig. 4, which is a flowchart of step S30 in the method for controlling the main resolution input of the display device according to the present invention.
As shown in fig. 4, the step S30 includes:
s31, after calculating to obtain new extended display identification data parameter information, the display device updates and stores a new extended display identification data array of the current channel;
and S32, the computer display card reads the content of the expansion display identification data again and sends the changed main resolution signal to the display equipment.
And step S40, the computer display card updates the latest main resolution and sends the updated main resolution to the display equipment as an input source to finish point-to-point display.
Specifically, the computer graphics card will re-read the EDID content of the corresponding channel, and then release the modified primary resolution signal to the display device, at this time, the physical resolution of the display device will be updated to the latest primary resolution, so as to achieve point-to-point display of the computer source image on the display device.
Please refer to fig. 5, which is a flowchart of step S40 in the method for controlling the main resolution input of the display device according to the present invention.
As shown in fig. 5, the step S40 includes:
s41, updating the latest main resolution by the computer display card, and sending a main resolution signal to the display device as an input source;
and S42, updating the physical resolution of the display equipment to the latest main resolution, and finishing the point-to-point display of the computer source image on the display equipment.
According to the invention, the EDID content of the display equipment is dynamically modified, so that one-to-one mapping between the physical resolution of the display equipment and the resolution of the computer display card is realized, and finally, the lossless display of the computer source image on the display equipment is realized, so that the display effect is optimal.
Specifically, as shown in fig. 6, some fixed standard VESA resolutions may be set in the graphics card panel, for example, standard resolutions specified by VESA such as 1366x768, 1280x768, 800x600, etc.; as shown in fig. 7, some newer graphics cards also support setting of arbitrary resolution settings, such as 2000x1000, 800x800, 400x600, etc.
For example, the current primary resolution is set to 800x800 in the display card panel, the display device receives an instruction for resetting the primary resolution sent by the display card, and the instruction content is analyzed to obtain the resolution to be set to 800x 800; then, according to a set algorithm, calculating a corresponding new EDID array, and writing the array into a corresponding EEPROM for storage; then, operating the hot plug in a high-low state to enable the computer display card to read the EDID data of the channel of the display equipment again; after analysis, the computer graphics card finds that the main resolution of the description of the current EDID is 800x800, then analyzes a signal with the resolution of 800x800 to the display device, and the physical resolution of the display device is changed into 800x800, thereby displaying the computer source image point to point.
The key point of the invention is that EDID content of a channel corresponding to the display equipment is modified in real time according to any resolution set by the computer display card, so that the physical resolution of the display equipment is changed into any resolution matched with the display card, and point-to-point display of the computer source image is realized.
Compared with the prior art, the biggest difference is that a mechanism for dynamically modifying EDID content is added, the EDID content in a plug-in EEPROM or stored in a flash is fixed and can not be modified in the traditional display equipment, so that the physical resolution of the display equipment can only be one of VESA standard resolutions, when a source image of a user is not matched with the resolution, the source image must be zoomed to be displayed in a full screen mode, and the point-to-point display effect can not be achieved.
As shown in fig. 8, based on the above method for controlling input of primary resolution of display device, the present invention also provides a system for controlling input of primary resolution of display device, wherein the system for controlling input of primary resolution of display device includes: a computer display card 100 and a display device 200; the computer graphics card 100 is configured to set a new resolution and send a command for modifying a resolution parameter to the display device 200; the display device 200 is configured to calculate a detail timing parameter value of the extended display identification data according to the resolution parameter of the instruction, update and store the content of the extended display identification data; the computer graphics card 100 is further configured to re-read the value of the extended display identification data, update the latest primary resolution, and send the updated primary resolution to the display device 200 as an input source; the display device 200 is further configured to complete point-to-point display of a computer source image on the display device 200 according to an input source sent by the computer graphics card 100.
The present invention also provides a storage medium, wherein the storage medium stores a display device primary resolution input control program, which when executed by a processor implements the steps of the display device primary resolution input control method as described above; as described above.
In summary, the present invention provides a method, a system and a storage medium for controlling input of main resolution of a display device, wherein the method comprises: the display equipment receives an instruction for modifying the resolution parameter sent by the computer display card; the display equipment calculates the detail timing parameter value of the expanded display identification data according to the resolution parameter of the instruction; the display equipment updates and stores the content of the extended display identification data, and the computer display card reads the value of the extended display identification data again; and the computer display card updates the latest main resolution and serves as an input source to be sent to the display equipment to finish point-to-point display. According to any resolution ratio set by the computer display card, the invention modifies the extended display identification data content of the corresponding channel of the display equipment in real time, so that the physical resolution ratio of the display equipment is changed into any resolution ratio matched with the computer display card, thereby realizing the point-to-point display of the computer source image.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (4)
1. A display device primary resolution input control method, comprising:
the display equipment receives an instruction for modifying the resolution parameter sent by the computer display card;
before receiving an instruction for modifying the resolution parameter sent by the computer display card, the display device further comprises:
the method comprises the steps that a resolution setting instruction input by a user is received in advance by display equipment, and a display panel in the display equipment sets any standard VESA resolution or any size of nonstandard VESA resolution according to the resolution setting instruction;
the step of receiving, by the display device, the resolution parameter modification instruction sent by the computer graphics card specifically includes:
the computer display card finishes the current primary resolution ratio change in advance and sends a resolution ratio parameter modification instruction to the display equipment;
a board card of the display equipment receives an instruction sent by a computer display card;
the display equipment calculates the detail timing parameter value of the expanded display identification data according to the resolution parameter of the instruction;
the calculating, by the display device according to the resolution parameter of the instruction, the detail timing parameter value of the extended display identification data specifically includes:
the display equipment acquires a resolution parameter in the received instruction and judges whether the resolution parameter is a standard resolution specified by VESA;
if yes, calculating to obtain a detail timing parameter value according to a standard resolution parameter table provided by the VESA;
if not, calculating the value of the Pixel Clock according to a formula of (Hactive +168) × (Vactive +45) × Vfreq, wherein the Pixel Clock is a Pixel Clock, Hactive is the width of resolution, Vactive is the height of resolution, and Vfreq is frequency;
the display equipment updates and stores the content of the extended display identification data, and the computer display card reads the value of the extended display identification data again;
the display device updates and stores the content of the extended display identification data, and the computer display card rereads the value of the extended display identification data specifically comprises the following steps:
after calculating to obtain new extended display identification data parameter information, the display equipment updates and stores a new extended display identification data array of the current channel;
the computer display card reads the content of the extended display identification data again and sends the changed main resolution signal to the display equipment;
the display device updates and stores the content of the extended display identification data, and the computer display card reads the value of the extended display identification data again, which further comprises:
when the display device detects that the external EEPROM is available, the updated content of the extended display identification data is written into the EEPROM of the corresponding channel;
the computer display card updates the latest main resolution and is used as an input source to be sent to the display equipment to complete point-to-point display;
the computer display card updates the latest main resolution and serves as an input source to be sent to the display equipment, and the point-to-point display completion specifically comprises the following steps:
the computer display card updates the latest main resolution and is used as an input source to send a main resolution signal to the display equipment;
updating the physical resolution of the display equipment to the latest main resolution to finish point-to-point display of the computer source image on the display equipment;
through dynamically modifying the EDID content of the display equipment, one-to-one mapping between the physical resolution of the display equipment and the resolution of the computer display card is realized, and finally, the lossless display of a computer source image on the display equipment is realized, so that the display effect is optimal;
according to any resolution ratio set by the computer display card, the expanded display identification data content of the corresponding channel of the display equipment is modified in real time, so that the physical resolution ratio of the display equipment is changed into any resolution ratio matched with the computer display card, the point-to-point display of the original image of the computer is realized, and the video or picture with any resolution ratio is displayed on the display equipment in a point-to-point mode.
2. The display device primary resolution input control method of claim 1, wherein the standard VESA resolution includes: 1920x1080, 1366x768, and 1280x 768; the non-standard VESA resolutions include 2000x1000, 800x800, and 400x 600.
3. A display device primary resolution input control system, comprising: a computer display card and a display device;
the computer display card is used for setting a new resolution and sending an instruction for modifying the resolution parameter to the display equipment;
before receiving an instruction for modifying the resolution parameter sent by the computer display card, the display device further comprises:
the method comprises the steps that a resolution setting instruction input by a user is received in advance by display equipment, and a display panel in the display equipment sets any standard VESA resolution or any size of nonstandard VESA resolution according to the resolution setting instruction;
the display equipment is used for calculating the detail timing parameter value of the extended display identification data according to the resolution parameter of the instruction, updating the content of the extended display identification data and storing the content;
the computer display card is also used for re-reading the value of the extended display identification data, updating the latest main resolution and sending the updated main resolution to the display equipment as an input source;
the display device updates and stores the content of the extended display identification data, and the computer display card reads the value of the extended display identification data again, which further comprises:
when the display device detects that the external EEPROM is available, the updated content of the extended display identification data is written into the EEPROM of the corresponding channel;
the display equipment is also used for finishing point-to-point display of a computer source image on the display equipment according to the input source sent by the computer display card;
the computer display card updates the latest main resolution and serves as an input source to be sent to the display equipment, and the point-to-point display completion specifically comprises the following steps:
the computer display card updates the latest main resolution and is used as an input source to send a main resolution signal to the display equipment; updating the physical resolution of the display equipment to the latest main resolution to finish point-to-point display of the computer source image on the display equipment;
the computer display card finishes the current primary resolution ratio change in advance and sends a resolution ratio parameter modification instruction to the display equipment;
a board card of the display equipment receives an instruction sent by a computer display card;
the display equipment acquires a resolution parameter in the received instruction and judges whether the resolution parameter is a standard resolution specified by VESA;
if yes, calculating to obtain a detail timing parameter value according to a standard resolution parameter table provided by the VESA;
if not, calculating the value of the Pixel Clock according to a formula of (Hactive +168) × (Vactive +45) × Vfreq, wherein the Pixel Clock is a Pixel Clock, Hactive is the width of resolution, Vactive is the height of resolution, and Vfreq is frequency;
after calculating to obtain new extended display identification data parameter information, the display equipment updates and stores a new extended display identification data array of the current channel;
the computer display card reads the content of the extended display identification data again and sends the changed main resolution signal to the display equipment;
through dynamically modifying the EDID content of the display equipment, one-to-one mapping between the physical resolution of the display equipment and the resolution of the computer display card is realized, and finally, the lossless display of a computer source image on the display equipment is realized, so that the display effect is optimal;
according to any resolution ratio set by the computer display card, the expanded display identification data content of the corresponding channel of the display equipment is modified in real time, so that the physical resolution ratio of the display equipment is changed into any resolution ratio matched with the computer display card, the point-to-point display of the original image of the computer is realized, and the video or picture with any resolution ratio is displayed on the display equipment in a point-to-point mode.
4. A storage medium storing a display device primary resolution input control program which, when executed by a processor, implements the steps of the display device primary resolution input control method according to any one of claims 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237714.9A CN109189359B (en) | 2018-10-23 | 2018-10-23 | Main resolution input control method and system for display equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237714.9A CN109189359B (en) | 2018-10-23 | 2018-10-23 | Main resolution input control method and system for display equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109189359A CN109189359A (en) | 2019-01-11 |
| CN109189359B true CN109189359B (en) | 2022-02-01 |
Family
ID=64943030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811237714.9A Active CN109189359B (en) | 2018-10-23 | 2018-10-23 | Main resolution input control method and system for display equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109189359B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853588A (en) * | 2019-10-23 | 2020-02-28 | 西安万像电子科技有限公司 | Data processing method and device |
| CN111240629A (en) * | 2020-01-17 | 2020-06-05 | 深圳市世纪创新显示电子有限公司 | Method for switching and displaying double EDID data |
| CN112419969B (en) * | 2020-11-30 | 2022-01-07 | 天津光电通信技术有限公司 | EDID parameter self-adaption device and method of LED display screen |
| CN114995944B (en) * | 2022-08-03 | 2022-11-15 | 武汉凌久微电子有限公司 | Resolution self-adaptive zooming display method and display card driving module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489426A (en) * | 2013-09-06 | 2014-01-01 | 天津三星电子有限公司 | Method for switching displayer resolution |
| CN105139792A (en) * | 2015-08-18 | 2015-12-09 | 京东方科技集团股份有限公司 | Display method and display device |
| CN106210590A (en) * | 2016-07-04 | 2016-12-07 | 广东欧珀移动通信有限公司 | A kind of image-pickup method and device |
| CN106383689A (en) * | 2016-09-20 | 2017-02-08 | 青岛海信电器股份有限公司 | Display font size adjustment method and apparatus, and terminal device |
| CN107845357A (en) * | 2017-09-28 | 2018-03-27 | 深圳前海骁客影像科技设计有限公司 | Measurement jig lights the method and device of display screen |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5911337B2 (en) * | 2011-04-08 | 2016-04-27 | キヤノン株式会社 | Video display device, video output device, control method therefor, and video presentation system |
| CN103106889B (en) * | 2013-02-25 | 2016-08-31 | 南京欧帝科技股份有限公司 | By automatically revising the method that EDID improves output resolution ratio |
| CN205751481U (en) * | 2016-06-29 | 2016-11-30 | 京东方科技集团股份有限公司 | The control device of display device and display device |
| TWI605388B (en) * | 2016-08-12 | 2017-11-11 | 晨星半導體股份有限公司 | Display controller and operation method thereof |
| CN107613238A (en) * | 2017-09-04 | 2018-01-19 | 西安万像电子科技有限公司 | The treating method and apparatus of content of multimedia |
| CN108055584A (en) * | 2017-10-12 | 2018-05-18 | Tcl海外电子（惠州）有限公司 | Signal adaptive display methods, television set and the storage medium of television set |
-
2018
- 2018-10-23 CN CN201811237714.9A patent/CN109189359B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489426A (en) * | 2013-09-06 | 2014-01-01 | 天津三星电子有限公司 | Method for switching displayer resolution |
| CN105139792A (en) * | 2015-08-18 | 2015-12-09 | 京东方科技集团股份有限公司 | Display method and display device |
| CN106210590A (en) * | 2016-07-04 | 2016-12-07 | 广东欧珀移动通信有限公司 | A kind of image-pickup method and device |
| CN106383689A (en) * | 2016-09-20 | 2017-02-08 | 青岛海信电器股份有限公司 | Display font size adjustment method and apparatus, and terminal device |
| CN107845357A (en) * | 2017-09-28 | 2018-03-27 | 深圳前海骁客影像科技设计有限公司 | Measurement jig lights the method and device of display screen |
Non-Patent Citations (3)
| Title |
|---|
| 中低端计算机连接平板电视——低成本实现点对点一例;杜庆一;《网络与信息》;20091009;第76页 * |
| 基于FPGA的HEVC关键模块硬件实现;夏正鹏;《中国优秀硕士学位论文全文数据库 信息科技辑》;20180315;I138-1540 * |
| 基于FPGA的LCM信号发生器的设计与实现;刘加东;《中国优秀硕士学位论文全文数据库 信息科技辑》;20180215;I136-182 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109189359A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109189359B (en) | Main resolution input control method and system for display equipment and storage medium | |
| KR101545387B1 (en) | System and method for display mirroring | |
| CN102117594B (en) | Techniques for aligning frame data | |
| KR101713177B1 (en) | System and method for virtual displays | |
| US9557893B2 (en) | Image transmission device, display system, image transmission program, and recording medium | |
| US10074203B2 (en) | Overlay for display self refresh | |
| US10817242B2 (en) | Image display device, connection method of image display device, and multi-display system | |
| US20190037100A1 (en) | Image processing device, image processing method, and program | |
| CN112004122B (en) | Electronic device and control method thereof | |
| US9307210B2 (en) | Image output apparatus, method, and medium | |
| KR102308192B1 (en) | Display apparatus and control method thereof | |
| TWI494848B (en) | Display-controlling method and displaying device | |
| US8459805B2 (en) | Display apparatus | |
| US11202028B2 (en) | Display device configuring multi display system and control method thereof | |
| JP2001265313A (en) | Device and method for processing signal, and computer- readable storage medium | |
| CN115083343A (en) | Display apparatus and resolution adjusting method | |
| US20140035928A1 (en) | Image display apparatus | |
| KR101506030B1 (en) | Multi-vision system and picture visualizing method the same | |
| KR100517500B1 (en) | Apparatus and method for preventing afterimage on display unit | |
| JP2016109797A (en) | Video display system | |
| JP5932475B2 (en) | Image transfer apparatus and control method thereof | |
| JP2014048921A (en) | Display device, video output device, control method therefor | |
| US7046227B2 (en) | System and method for continuously tracing transfer rectangles for image data transfers | |
| CN111552449B (en) | Use method of large-screen remote switching control platform | |
| US11467798B2 (en) | Display apparatus for changing an advertisement area, server, electronic apparatus and control methods thereof |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210721 Address after: 14 / F, block a, Skyworth building, Gaoxin South 1st Road, Nanshan District, Shenzhen, Guangdong 518000 Applicant after: SHENZHEN SKYWORTH DIGITAL TECHNOLOGY Co.,Ltd. Address before: 518118 No.1, Baolong 6th Road, Baolong Industrial City, Longgang District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN SKYWORTH QUNXIN SECURITY TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |