CN106293578A - Video card, image display device, method for displaying image and system - Google Patents
Video card, image display device, method for displaying image and system Download PDFInfo
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- CN106293578A CN106293578A CN201610600966.8A CN201610600966A CN106293578A CN 106293578 A CN106293578 A CN 106293578A CN 201610600966 A CN201610600966 A CN 201610600966A CN 106293578 A CN106293578 A CN 106293578A
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- 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
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
Abstract
The invention discloses a kind of video card, image display device, method for displaying image and system, relate to image display arts, for solving the problem that the relatively low video display interface of current resolution is difficult to transmit high-definition picture between video card and sharpness screen.Image display device includes: receive transmitting element and memory element.Embodiments of the invention are applied to high-definition picture and show.
Description
Technical field
The present invention relates to image display arts, particularly relate to a kind of video card, image display device, method for displaying image and be
System.
Background technology
The video display interface of current main flow, such as DVI (English full name: digital visual interface, in
Literary composition full name: digital visual interface), DP (English full name: display port, Chinese full name: display port), HDMI (English complete
Claim: high definition multimedia interface, Chinese full name: HDMI), SDI (English
Full name: serial digital interface, Chinese full name: serial digital interface), VGA (English full name: video
Graphics array, Chinese full name: Video Graphics Array) etc., at most can only support the resolution of 4096*2160 (4K*2K),
And the image resolution ratio that the video card of computer is supported is much larger than this resolution.Simultaneously along with the development of display screen technology, existing at present
The display screen of 7680*4320 (8K*4K) resolution occurs.Therefore, the video display interface that current resolution is relatively low is difficult to aobvious
Transmit high-definition picture between card and sharpness screen, become view data between video card and sharpness screen
The bottleneck of transmission.
Summary of the invention
Embodiments of the invention provide a kind of video card, image display device, method for displaying image and system, are used for solving mesh
The relatively low video display interface of front resolution is difficult between video card and sharpness screen transmit asking of high-definition picture
Topic.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
First aspect, it is provided that a kind of video card, this video card includes:
Cutting unit, forms the picture number of M passage for described high-definition picture is carried out segmentation according to M quadrant
According to, wherein, M >=2, the view data of described M passage is low resolution image data；
Transmitting element, for sending the view data of described M passage by the video display interface of M low resolution
It is used for showing to described display screen, wherein, the video display interface of described M low resolution and the picture number of described M passage
According to one_to_one corresponding, and the video display interface of a low resolution is for the view data of one passage of transmission.
Second aspect, it is provided that a kind of image display device, this device includes:
Receive transmitting element, for receiving M passage by the video display interface of M low resolution from described video card
View data, extracts the color data of each passage from the view data of described M passage line by line, according to described M passage
View data position in described high-definition picture, the color data of described each passage is stored line by line to storage single
Correspondence position in unit, to reduce described high-definition picture, is additionally operable to according to described high-definition picture in described display screen
High-definition picture through reduction in described memory element is divided into the number of colors of N number of subregion by N number of subregion when showing
According to, and the color data of each subregion of color data of described N number of subregion is sent to display screen is line by line used for showing, its
In, M >=2, N >=2, the view data of described M passage is that described high-definition picture is carried out by described video card according to M quadrant
The image of the low resolution image data that segmentation is formed, the video display interface of described M low resolution and described M passage
Data one_to_one corresponding, and the video display interface of a low resolution is for the view data of one passage of transmission；
Memory element, for receiving from described reception unit and store the color data of described each passage line by line with reduction
Described high-definition picture.
The third aspect, it is provided that a kind of method for displaying image, the method includes:
Described high-definition picture is carried out segmentation according to M quadrant and forms the view data of M passage, wherein, M >=2,
The view data of described M passage is low resolution image data；
By the video display interface of M low resolution, the view data of described M passage is sent to described display screen
For showing, wherein, the video display interface of described M low resolution and the view data one_to_one corresponding of described M passage, and
And the video display interface of a low resolution is for the view data of one passage of transmission.
Fourth aspect, it is provided that another kind of method for displaying image, the method includes:
The view data of M passage is received from described video card, from described M by the video display interface of M low resolution
The view data of individual passage is extracted the color data of each passage line by line, according to the view data of described M passage described
Position in high-definition picture, the correspondence position that the color data of described each passage is stored line by line to memory element with
Reducing described high-definition picture, N number of subregion when showing in described display screen according to described high-definition picture will
In described memory element, the high-definition picture through reduction is divided into the color data of N number of subregion, and by described N number of subregion
The color data of each subregion of color data is sent to display screen line by line for showing, wherein, M >=2, N >=2, described M passage
View data by described video card, described high-definition picture is split formed low-resolution image according to M quadrant
Data, the view data one_to_one corresponding of the video display interface of described M low resolution and described M passage, and one low
The video display interface of resolution is for the view data of one passage of transmission；
Described memory element receives and stores the color data of described each passage line by line to reduce described high resolution graphics
Picture.
5th aspect, it is provided that a kind of image display system, including video card as described in relation to the first aspect with such as second aspect
Described image display device.Described video card passes through the video display interface of M low resolution and described image display device phase
Even, described video card is used for showing for high-definition picture is sent to display screen；Described device used for image display is in will be from
The high-definition picture of described video card is sent to described display screen for showing.
Video card, image display device, method for displaying image and the system that embodiments of the invention provide, by M low point
The color data of each passage is extracted after the view data that the video display interface of resolution receives M passage respectively, and to often
The color data of individual passage stores to go back original high resolution image line by line, and wherein, the view data of M passage is that video card is to high score
The image segmentation of resolution is formed, the video display interface of M low resolution and the view data one_to_one corresponding of M passage, and
And the video display interface of a low resolution is for the view data of one passage of transmission；Original high resolution image by reduction
Partitioned mode according still further to display screen is divided into N number of subregion；Finally the color data of each subregion is sent to display screen by row
For showing.Solve the relatively low video display interface of current resolution and be difficult between video card and sharpness screen transmission
The problem of high-definition picture.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
The structural representation of a kind of image display system that Fig. 1 provides for embodiments of the invention；
The structural representation of a kind of video card that Fig. 2 provides for embodiments of the invention；
The structural representation of a kind of image display device that Fig. 3 provides for embodiments of the invention；
The structural representation receiving transmitting element that Fig. 4 provides for embodiments of the invention；
The video card that Fig. 5 provides for embodiments of the invention is divided into the schematic diagram of passage to high-definition picture；
The schematic diagram of the often row view data storage position of each passage that Fig. 6 provides for embodiments of the invention；
The schematic diagram of subregion when high-definition picture is shown by Fig. 7 for the display screen that embodiments of the invention provide；
The structural representation of the input buffer module that Fig. 8 provides for embodiments of the invention；
The structural representation of the output buffer module that Fig. 9 provides for embodiments of the invention；
The schematic flow sheet of a kind of method for displaying image that Figure 10 provides for embodiments of the invention；
The schematic flow sheet of the another kind of method for displaying image that Figure 11 provides for embodiments of the invention；
The schematic flow sheet of another method for displaying image that Figure 12 provides for embodiments of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The invention provides a kind of image display system, shown in reference Fig. 1, including: video card 11, image display device 12
With display 13.Wherein, video card 11 is the video card supporting high-definition picture；Display 13 is the height supporting high-definition picture
Resolution display, the most high-resolution LCDs etc.；Image display device 12 is for by the high score from video card 11
Resolution image is sent to display screen 13 for showing.
Video card, image display device, method for displaying image and the system that the present invention provides, regarding by M low resolution
The color data of each passage is extracted after the view data that frequency display interface receives M passage respectively, and to each passage
Color data stores to go back original high resolution image line by line, and wherein, the view data of M passage is that video card is to high-resolution figure
Formed as splitting, the video display interface of M low resolution and the view data one_to_one corresponding of M passage, and one low
The video display interface of resolution is for the view data of one passage of transmission；By the original high resolution image of reduction according still further to aobvious
The partitioned mode of display screen is divided into N number of subregion；Finally by row, the color data of each subregion is sent to display screen be used for showing.
Solve the relatively low video display interface of current resolution to be difficult between video card and sharpness screen transmit high-resolution
The problem of image.
Embodiment 1,
The invention provides a kind of video card, as the video card 11 shown in Fig. 1, for being sent to show by high-definition picture
Display screen 13 is used for showing, with reference to shown in Fig. 2, video card 11 includes:
Cutting unit 111, forms the picture number of M passage for high-definition picture is carried out segmentation according to M quadrant
According to, wherein, M >=2, the view data of M passage is low resolution image data.
Transmitting element 112, for sending the view data of M passage by the video display interface of M low resolution
It is used for showing to display screen, wherein, the video display interface of M low resolution and the view data one_to_one corresponding of M passage, and
And the video display interface of a low resolution is for the view data of one passage of transmission.
The video card that the present invention provides, forms the M of low resolution by high-definition picture is carried out segmentation according to M quadrant
The view data of individual passage, then is sent to show by the view data of M passage by the video display interface of M low resolution
Display screen is used for showing, the video display interface of a low resolution is for the view data of one passage of transmission so that a vertical frame dimension
The low resolution image data of M the passage that the image of resolution is formed after over-segmentation regarding by M low resolution respectively
Frequency display interface is transferred to display screen.Solve the relatively low video display interface of current resolution to be difficult in video card and high-resolution
The problem transmitting high-definition picture between display screen.
Embodiment 2,
The invention provides a kind of image display device, as the image display device 12 shown in Fig. 1, for will be from
The high-definition picture of video card is sent to display screen for showing, with reference to shown in Fig. 3, including:
Receive transmitting element 121, for receiving M passage by the video display interface of M low resolution from video card
View data, extracts the color data of each passage from the view data of M passage line by line, according to the picture number of M passage
According to the position in high-definition picture, the correspondence position that the color data of each passage is stored line by line to memory element with
Also original high resolution image, is additionally operable to N number of subregion when showing in display screen according to high-definition picture by single for storage
In unit, the high-definition picture through reduction is divided into the color data of N number of subregion, and by each point of the color data of N number of subregion
The color data in district is sent to display screen line by line for showing, wherein, M >=2, N >=2, the view data of M passage is video card pair
High-definition picture carries out splitting formed low resolution image data according to M quadrant, and the video of M low resolution shows
Interface and the view data one_to_one corresponding of M passage, and the video display interface of a low resolution is logical for transmission one
The view data in road；
Memory element 122, for receiving and store the color data of each passage line by line to reduce high score from reception unit
Resolution image.
Wherein, the data word size that memory element 122 comprises is more than or equal to the pixel number of high-definition picture.
Concrete, memory element 122 can be DDR SDRAM (English full name: double data rate
Synchronous dynamic random access memory, Chinese full name: Double Data Rate synchronous dynamic random is deposited
Access to memory) or SRAM (English full name: static random access memory, Chinese full name: static random-access is deposited
Reservoir) etc. there is the readable and writable memory of high-capacity and high-speed storage characteristics, to realize the access requirement of whole vertical frame dimension image in different resolution.
Concrete effect, with reference to the description to storage control module 1214, does not repeats them here.
The image display device that embodiments of the invention provide, is connect respectively by the video display interface of M low resolution
Extract the color data of each passage after receiving the view data of M passage, and the color data of each passage is stored line by line
To go back original high resolution image, wherein, the segmentation of high-resolution image is formed by the view data of M passage by video card, M
The view data one_to_one corresponding of the video display interface of low resolution and M passage, and the video of a low resolution shows
Interface is for the view data of one passage of transmission；The original high resolution image of reduction is divided according still further to the partitioned mode of display screen
It is segmented into N number of subregion；Finally by row, the color data of each subregion is sent to display screen be used for showing.Solve current resolution
The problem that relatively low video display interface is difficult to transmit high-definition picture between video card and sharpness screen.
Optionally, with reference to shown in Fig. 4, receive transmitting element 121 and include: receive control module 1211, input buffer module
1212, control module 1213, storage control module 1214, write control module 1215, output buffer module 1216 and defeated are read
Go out control module 1217.Wherein:
Receive control module 1211, for being received the figure of M passage from video card by the video display interface of low resolution
As data, and the color data extracting each passage from the view data of M passage line by line stores to input buffer module
1212, wherein, the view data of M passage carries out segmentation to high-definition picture according to M quadrant by video card and is formed, each
The view data of passage can be transmitted by the video display interface of low resolution.
Exemplary, as shown in Figure 5, the present invention is as a example by the high-definition picture of 7680*4320, it is assumed that video card should
High-definition picture carries out segmentation according to four quadrants and forms the view data of four passages (passage A to passage D), each passage
The resolution of view data be all 3840*2160, therefore receive control module 1211 and can pass through a low resolution respectively
Such as support that the video display interface of 3840*2160 resolution receives the view data of each passage.Receive control module
1211 the view data of these four passages is decoded after obtain field VS (English full name: the vertical of each passage
Sync, Chinese full name: synchronizing signal), HS (English full name: horizontal sync, Chinese full name: line synchronising signal), DE
(English full name: data enable, Chinese full name: data enable signal) and RGB (English full name: red green blue,
Chinese full name: RGB) color data, wherein, and the corresponding pixel of each color data, color depth is 24bit or 30bit,
It is designated as a data word.
Then, receive in the view data of the control module 1211 each passage from M passage and extract number of colors line by line
According to storing to input buffer module 1212.Concrete, receive control module 1211 raw according to VS, HS and DE signal of each passage
Become the first write timing signal of this passage, according to this first write timing signal, the color data of this passage is write defeated line by line
Enter cache module 1212 so that the color data of each passage received can real-time storage to input buffer module 1212.
Preferably, when extracting the color data of each passage line by line, can be according to same sequence, the most from top to bottom or from bottom to up
Or interval multirow extracts, and the present invention is not defined at this.Those skilled in the art it will also be appreciated that, it is also possible to from
Extracting color data in each passage by column, its concrete operations mode is similar with the present invention, does not repeats them here.
Input buffer module 1212, for receiving line by line from reception control module 1211 and store the number of colors of each passage
According to, wherein, the storage depth of input buffer module 1212 is identical with the number of pixels of a line color data of each passage.
Concrete, storage depth described herein refers to a line color data that input buffer module 1212 is each passage
Reserved storage space size, unit is above-described data word.Such as, due to each data word size be 24bit or
32bit, and the number of pixels of a line color data of the most each passage is 3840, therefore, input-buffer mould
The storage depth of block 1212 is at least 3840 data words, i.e. 3840*24bit or 3840*32bit.
Read control module 1213, for reading the color data of each passage from input buffer module 1212 line by line,
And the color data of each passage is sent to storage control module 1214 line by line.
Concrete, read control module 1213 and generate the first reading clock signal for each passage, and according to each logical
The first reading clock signal in road reads the color data of respective channel from input buffer module 1212 line by line, has read a line
After a line color data of each passage is sent to storage control module 1214.
Storage control module 1214, for receiving the color data of each passage line by line from reading control module 1213, and
And according to the view data of M the passage position in high-definition picture, the color data of each passage is stored line by line to
Correspondence position in memory element 122, to go back original high resolution image, is additionally operable to enter in display screen according to high-definition picture
High-definition picture through reduction in memory element 122 is divided into the color data of N number of subregion by N number of subregion during row display,
And the color data extracting each subregion from the color data of N number of subregion line by line is sent to write control module 1215.
Exemplary, as a example by 7680 × 4320 high-definition pictures that embodiments of the invention provide, in order in storage
Unit 122 reduces complete high-definition picture, needs the often row view data of each passage that receives according to original
Quadrant arrangement mode stores the correspondence position to memory element 122, such as, as shown in Figure 6, by the often row image of passage A
Data are stored in the space of matrices of (0,0) to (3839,2159) of memory element 122 by original order, by the often row figure of passage B
As data are stored to the space of matrices of (0,2160) to (3839,4319) of memory element 122 by original order, by channel C
Often row view data by original order store to memory element 122 (3840,0) to (7679,2159) space of matrices in,
The often row view data of passage D is stored (3840,2160) to (7679,4319) to memory element 122 by original order
In space of matrices.The view data of each passage is stored so that the most divided four-quadrant diagram picture is by again by subregion
Combination is reduced to original high resolution image.
Display screen shows according to subregion when showing image, exemplary, with display screen to 7680 × 4320 high scores
Resolution image is divided into when showing shown in Fig. 7 as a example by four subregions, and the resolution of each subregion is identical, is 1920*
4320.Storage control module 1214 by memory element 122 through reduction high-definition picture split according to above-mentioned partition method
It is the color data of four subregions, and is sent to the color data of each subregion line by line write control module 1215.
Concrete, storage control module 1214 generates the second write timing signal, will connect according to the second write timing signal
Color data write storage unit 122 line by line of each passage received.Storage control module 1214 generates the second reading sequential
Signal, is sent to write control according to the color data that the second reading clock signal reads each subregion line by line from memory element 122
Molding block 1215.
Write control module 1215, for receiving the color data of each subregion line by line from storage control module 1214, and
And the color data of each subregion is stored in output buffer module 1216 line by line.
Concrete, write control module 1215 generates the 3rd write timing signal, will be by according to the 3rd write timing signal
The color data write output buffer module 1216 of each subregion that row receives.
Output buffer module 1216, for receiving line by line from write control module 1215 and store the number of colors of each subregion
According to, wherein, the storage depth of output buffer module 1216 is identical with the number of pixels of a line color data of each subregion.
Concrete, similar with input buffer module 1212, storage depth described herein refers to output buffer module 1216
For a line color data reserved storage space size of each subregion, unit is similarly data word.Such as, due to each data word
Size is 24bit or 32bit, and the number of pixels of a line color data of the most each subregion is 1920, because of
This, the storage depth of input buffer module 1212 is at least 1920 data words, i.e. 1920*24bit or 1920*32bit.
Output control module 1217, for by the color data of each subregion of storage in output buffer module 1216 line by line
Output is used for showing to display screen.
Concrete, output control module 1217 generates third reading and takes clock signal, takes clock signal from defeated according to third reading
Go out cache module 1216 reads a line color data of each subregion, then according to display screen TCON (English full name: timing
Controller, Chinese full name: time schedule controller) signal format that identified of plate, by the most defeated for the color data of each subregion
Go out to display screen for showing.
Optionally, in order to improve the efficiency being written and read storage content, each memory element or buffer unit can wrap
Containing two memory spaces, when a memory space is read, another memory space can be carried out write behaviour
Make.
Such as, input buffer module 1212 can comprise two groups of input-buffer spaces, and often group input-buffer space comprises M
Input-buffer, often group input-buffer space in M input-buffer respectively with described M passage one_to_one corresponding, wherein, one group is defeated
Enter in spatial cache input-buffer for storing a line color data of a passage in M passage and each
The storage depth of input-buffer is identical with the number of pixels of a line color data of each passage.
Exemplary, as a example by four described in the embodiment of the present invention passage (passage A to passage D), such as institute in Fig. 8
Show, first group of input-buffer space comprise tetra-input-buffers of A, B, C and D, second group of input-buffer space comprises A ',
B ', C ' and four input-buffers of D '.Caching A and A ' is for a line color data of memory channel A, and caches depositing of A or A '
The storage degree of depth is identical with the number of pixels of a line color data of passage A；Caching B and B ' is for a line number of colors of memory channel B
According to, and it is identical with the number of pixels of a line color data of passage B to cache the storage depth of B or B '；Caching C and C ' is used for depositing
A line color data of storage channel C, and cache the number of pixels of the storage depth of C or C ' and a line color data of channel C
Identical；Caching D and D ' is for a line color data of memory channel D, and caches the storage depth of D or D ' and the one of passage D
The number of pixels of row color data is identical.
Now, receive control module 1211, for a line color data of each passage is stored respectively to input slow
After M the input-buffer in one group of input-buffer space of storing module 1212, by the next line color data of each passage respectively
Store to M the input-buffer in another group input-buffer space of input buffer module 1212.
Concrete, as a example by four described in the embodiment of the present invention passage (passage A to passage D), as shown in Figure 8,
Receive control module 1211 by a SW (English full name: switch, Chinese full name: select) signal make therein one group defeated
Enter spatial cache to read effectively and write invalid, make the write in another group input-buffer space effectively read invalid.Exemplary
, when a SW is 1, first group of input-buffer space read effectively and write invalid, second group of input-buffer space write
It is invalid effectively to read.Now a line color data of passage A can write in A ', and a line color data of passage B can be write
Entering in B ', a line color data of channel C can write in C ', and a line color data of passage D can write in D '.When first
SW signal inverts once, and when the i.e. the oneth SW is 0, it is invalid that the write of first group of input-buffer space is effectively read, second group of input
It is invalid that spatial cache reading effectively writes.Now, the next line color data of passage A can write in A, next of passage B
Row color data can write in B, and the next line color data of channel C can write in C, the next line color data of passage D
Can write in D.
Now, read control module 1213, for receiving a group to input buffer module 1212 of control module 1211
When input-buffer space carries out storage operation, read each logical from another group input-buffer space of input buffer module 1212
The lastrow color data in road, and described lastrow color data is sent to described storage control module 1214.
Concrete, as a example by four described in the embodiment of the present invention passage (passage A to passage D), as shown in Figure 8,
When a SW is 0, receives control module 1211 and store a line color data of each passage in first group of input-buffer space
And first group of input-buffer space reading is invalid, now reads due to second group of input-buffer space and effectively and wherein store
The lastrow color data of each passage, reads control module 1213 and can read each from second group of input-buffer space
The lastrow color data of passage.
Optionally, memory element 122 can comprise two frame buffers, and each frame buffer is for storage one vertical frame dimension resolution chart
Picture, the data word size that each frame buffer comprises is more than or equal to the pixel number of high-definition picture.One of them frame delays
Depositing the high-definition picture for caching present frame, another frame buffer is for caching the high-definition picture of former frame, when depositing
When storage control module stores the high-definition picture of present frame to a frame buffer, can read previous from another frame buffer
The high-definition picture of frame.For the high-definition picture of the present embodiment, the data word size that each frame buffer comprises is big
In equal to 7680*4320*30bit.
Now, storage control module 1214, specifically for according to the view data of described M passage at high-definition picture
In position, the color data of each passage corresponding to the high-definition picture of present frame is stored line by line to memory element
The correspondence position of a frame buffer in 122, with the high-definition picture of reduction present frame, is additionally operable to according to high-definition picture
N number of subregion when showing in display screen by another frame buffer in memory element 122 through the former frame of reduction
High-definition picture is divided into the color data of N number of subregion, and extracts each subregion from the color data of N number of subregion line by line
Color data be sent to write control module 1215.
Concrete, with four described in the embodiment of the present invention passage (passage A to passage D) and four subregions (first
Subregion is to the 4th subregion) as a example by, storage control module 1214 receives the color data of four passages and controls memory element 122
In the complete frame of first frame buffer high-definition picture after, control second frame buffer and carry out the high-resolution of next frame
The storage of image, now storage control module 1214 can read former frame according to four subregions from first frame buffer line by line
High-definition picture and be sent to write control module 1215.
Optionally, similar with input buffer module 1212, output buffer module 1216 can also comprise two groups of output cachings
Space, often group output spatial cache comprise N number of output caching, often group output spatial cache in N number of output caching respectively with institute
Stating N number of subregion one_to_one corresponding, wherein, an output caching in one group of output spatial cache is for storing in N number of subregion
A line color data of individual subregion, and the pixel of a line color data of the storage depth of each output caching and each subregion
Number is identical.
Exemplary, as a example by four described in the embodiment of the present invention subregion (the first subregion is to the 4th subregion), such as Fig. 9
Shown in, first group of output spatial cache comprises S, T, U and V tetra-output caching, second group of output spatial cache comprises
S ', T ', U ' and V ' four output caching.Caching S and S ' for storage the first subregion a line color data, and cache S or
The number of pixels of the storage depth of S ' and a line color data of the first subregion is identical；Caching T and T ' is for storage the second subregion
A line color data, and the number of pixels caching the storage depth of T or T ' and a line color data of the second subregion is identical；
Caching U and U ' is for a line color data of storage the 3rd subregion, and caches the storage depth and the one of the 3rd subregion of U or U '
The number of pixels of row color data is identical；Caching V and V ' for storage the 4th subregion a line color data, and cache V or
The number of pixels of the storage depth of V ' and a line color data of the 4th subregion is identical.
Now, write control module 1215, for a line color data of each subregion is stored respectively to output slow
After N number of output caching of one group of output spatial cache of storing module 1216, by the next line color data of each subregion respectively
Store to N number of output caching of another group output spatial cache of output buffer module 1216.
Concrete, as a example by four described in the embodiment of the present invention subregion (the first subregion is to the 4th subregion), in Fig. 9
Shown in, write control module 1215 makes one group of input-buffer space therein read by the 2nd SW signal and effectively writes nothing
Effect, makes the write in another group input-buffer space effectively read invalid.Exemplary, when the 2nd SW is 1, first group of output
Spatial cache reads effectively and writes invalid, and it is invalid that second group of output spatial cache write is effectively read.Now the first subregion
A line color data can write in S ', a line color data of the second subregion can write in T ', a line of the 3rd subregion
Color data can write in U ', and a line color data of the 4th subregion can write in V '.When the 2nd SW signal inverts once,
When i.e. the 2nd SW is 0, it is invalid that first group of output spatial cache write is effectively read, and second group of output spatial cache reads effectively
And write invalid.Now, the next line color data of the first subregion can write in S, the next line color data of the second subregion
Can write in T, the next line color data of the 3rd subregion can write in U, and the next line color data of the 4th subregion can
In write V.
Now, output control module 1217, for writing a group to output buffer module 1216 of control module 1215
When output spatial cache carries out storage operation, from another group output spatial cache of output buffer module 1216, read each point
A line color data in district also exports to display screen for showing.
Concrete, as a example by four described in the embodiment of the present invention subregion (the first subregion is to the 4th subregion), in Fig. 9
Shown in, when the 2nd SW is 0, write control module 1215 stores a line color of each subregion at first group of output spatial cache
It is invalid that data and first group of output spatial cache read, and now reads effectively and wherein due to second group of output spatial cache
Storing the lastrow color data of each subregion, output control module 1217 can read from second group of output spatial cache
The lastrow color data of each subregion.
Embodiment 3,
The invention provides a kind of method for displaying image, be applied to the video card 11 shown in Fig. 2, shown in reference Figure 10,
The method includes:
S101, by high-definition picture according to M quadrant carry out segmentation formed M passage view data, wherein, M >=
The view data of 2, M passages is low resolution image data；
S102, by the video display interface of M low resolution, the view data of M passage is sent to display screen and is used for
Display, wherein, the video display interface of M low resolution and the view data one_to_one corresponding of M passage, and a low resolution
The video display interface of rate is for the view data of one passage of transmission.
Owing to the method for displaying image in the embodiment of the present invention may be used for above-mentioned video card, therefore, it can be obtained with skill
Art effect also refers to said apparatus embodiment, and the embodiment of the present invention does not repeats them here.
Embodiment 4,
The invention provides another kind of method for displaying image, for the image display device 12 shown in Fig. 3, with reference to Figure 11
Shown in, method for displaying image includes step S201 and S202:
S201, received the view data of M passage from video card by the video display interface of M low resolution, lead to from M
The view data in road is extracted the color data of each passage line by line, according to the view data of M passage at high-definition picture
In position, the correspondence position stored line by line to memory element by the color data of each passage is to reduce high resolution graphics
Picture, N number of subregion when showing in display screen according to high-definition picture by memory element through reduction high-resolution
Image is divided into the color data of N number of subregion, and is sent line by line by the color data of each subregion of color data of N number of subregion
Being used for showing to display screen, wherein, M >=2, N >=2, the view data of M passage is that video card is individual according to M to high-definition picture
Quadrant carries out splitting formed low resolution image data, the video display interface of M low resolution and the image of M passage
Data one_to_one corresponding, and the video display interface of a low resolution is for the view data of one passage of transmission.
S202, memory element receive and store the color data of each passage line by line to go back original high resolution image.
Owing to the method for displaying image in the embodiment of the present invention may be used for above-mentioned image display device, therefore, its energy
The technique effect obtained also refers to said apparatus embodiment, and the embodiment of the present invention does not repeats them here.
Optionally, with reference to shown in Figure 12, step S201 includes step S2011-S2017:
S2011, reception control module receive the figure of M passage by the video display interface of M low resolution from video card
As data, and the color data extracting each passage from the view data of M passage line by line stores to input buffer module.
Optionally, the color data extracting each passage from the view data of M passage line by line stores to input-buffer
Module, including: a line color data of each passage is being stored respectively one group of input-buffer space to input buffer module
M input-buffer after, the next line color data of each passage is stored respectively to another group of input buffer module defeated
Enter in M input-buffer of spatial cache.
S2012, input buffer module receive line by line from receiving control module and store the color data of each passage, its
In, the storage depth of input buffer module is identical with the number of pixels of a line color data of each passage.
S2013, reading control module read the color data of each passage from input buffer module line by line, and will be every
The color data of individual passage is sent to storage control module line by line.
Optionally, step S2013 includes: read control module to receive control module defeated to one group of input buffer module
Enter spatial cache carry out storage operation time, from input buffer module another group input-buffer space read the upper of each passage
A line color data, and described lastrow color data is sent to storage control module.
S2014, storage control module receive the color data of each passage line by line from reading control module, and according to M
The view data of individual passage position in high-definition picture, stores to memory element line by line by the color data of each passage
In the correspondence position N number of subregion to go back original high resolution image, when showing in display screen according to high-definition picture
High-definition picture through reduction in memory element is divided into the color data of N number of subregion, and from the number of colors of N number of subregion
The color data extracting each subregion according to line by line is sent to write control module.
Optionally, step S2014 includes: storage control module according to the view data of M passage at high-definition picture
In position, the color data of each passage corresponding to the high-definition picture of present frame is stored line by line to memory element
A frame buffer correspondence position with reduce present frame high-definition picture, enter in display screen according to high-definition picture
Row display time N number of subregion by another frame buffer in memory element through reduction former frame high-definition picture segmentation
For the color data of N number of subregion, and the color data extracting each subregion from the color data of N number of subregion line by line is sent to
Write control module.
S2015, write control module receive the color data of each subregion line by line from storage control module, and by each
The color data of subregion stores in output buffer module line by line.
Optionally, the color data of each subregion is stored in output buffer module line by line, including: by each subregion
A line color data store respectively after N number of output caching of one group of output buffer module output spatial cache, will be every
The next line color data of individual subregion stores N number of output caching of another group output spatial cache to output buffer module respectively
In.
S2016, output buffer module receive line by line from write control module and store the color data of each subregion, its
In, the storage depth of output buffer module is identical with the number of pixels of a line color data of each subregion.
S2017, output control module the color data of each subregion stored in output buffer module is exported line by line to
Display screen is used for showing.
Optionally, step S2017 includes: output control module is defeated to one group of output buffer module in write control module
Go out spatial cache carry out storage operation time, from output buffer module another group output spatial cache read the one of each subregion
Row color data also exports to display screen for showing.
Owing to the method for displaying image in the embodiment of the present invention may be used for above-mentioned image display device, therefore, its energy
The technique effect obtained also refers to said apparatus embodiment, and the embodiment of the present invention does not repeats them here.
Should be understood that in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to perform suitable
The priority of sequence, the execution sequence of each process should determine with its function and internal logic, and should be to the enforcement of the embodiment of the present invention
Process constitutes any restriction.
Those of ordinary skill in the art are it is to be appreciated that combine the list of each example that the embodiments described herein describes
Unit and algorithm steps, it is possible to being implemented in combination in of electronic hardware or computer software and electronic hardware.These functions are actually
Perform with hardware or software mode, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel
Each specifically should being used for can be used different methods to realize described function, but this realization is it is not considered that exceed
The scope of the present invention.
Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, the system of foregoing description,
The specific works process of device and unit, is referred to the corresponding process in preceding method embodiment, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, equipment and method, permissible
Realize by another way.Such as, apparatus embodiments described above is only schematically, such as, and described unit
Dividing, be only a kind of logic function and divide, actual can have other dividing mode, the most multiple unit or assembly when realizing
Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or
The coupling each other discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, equipment or unit
Close or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit
The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme
's.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.
If described function is using the form realization of SFU software functional unit and as independent production marketing or use, permissible
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is the most in other words
The part contributing prior art or the part of this technical scheme can embody with the form of software product, this meter
Calculation machine software product is stored in a storage medium, including some instructions with so that a computer equipment (can be individual
People's computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.
And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (English full name: read-only memory, English letter
ROM), random access memory (English full name: random access memory, English abbreviation: RAM), magnetic disc or light claim:
The various medium that can store program code such as dish.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (10)
1. a video card, it is characterised in that be used for showing for high-definition picture is sent to display screen, described video card bag
Include:
Cutting unit, forms the view data of M passage for described high-definition picture is carried out segmentation according to M quadrant,
Wherein, M >=2, the view data of described M passage is low resolution image data；
Transmitting element, for being sent to institute by the video display interface of M low resolution by the view data of described M passage
State display screen for showing, wherein, the view data one of the video display interface of described M low resolution and described M passage
One is corresponding, and the video display interface of a low resolution is for the view data of one passage of transmission.
2. an image display device, it is characterised in that use for the high-definition picture from video card being sent to display screen
In display, described image display device includes:
Receive transmitting element, for being received the image of M passage from described video card by the video display interface of M low resolution
Data, extract the color data of each passage from the view data of described M passage line by line, according to the figure of described M passage
As data position in described high-definition picture, the color data of described each passage is stored line by line to memory element
Correspondence position to reduce described high-definition picture, be additionally operable to carry out in described display screen according to described high-definition picture
High-definition picture through reduction in described memory element is divided into the color data of N number of subregion by N number of subregion during display, and
And the color data of each subregion of color data of described N number of subregion is sent to display screen is line by line used for showing, wherein, M >=
2, N >=2, the view data of described M passage is that described high-definition picture is carried out splitting institute by described video card according to M quadrant
The view data one of the low resolution image data formed, the video display interface of described M low resolution and described M passage
One is corresponding, and the video display interface of a low resolution is for the view data of one passage of transmission；
Memory element, described with reduction for receiving and store the color data of described each passage line by line from described reception unit
High-definition picture.
Image display device the most according to claim 2, it is characterised in that described reception transmitting element, including
Receive control module, lead to for receiving described M by the video display interface of described M low resolution from described video card
The view data in road, and the color data extracting each passage from the view data of described M passage line by line stores to defeated
Enter cache module；
Described input buffer module, for receiving from described reception control module and store the number of colors of described each passage line by line
According to, wherein, the storage depth of described input buffer module is identical with the number of pixels of a line color data of described each passage；
Read control module, for reading the color data of described each passage from described input buffer module line by line, and
The color data of described each passage is sent to storage control module line by line；
Described storage control module, for receiving the color data of described each passage line by line from described reading control module, and
And according to the view data of described M the passage position in described high-definition picture, by the number of colors of described each passage
According to the correspondence position stored line by line to memory element to reduce described high-definition picture, it is additionally operable to according to described high-resolution
N number of subregion when image shows in described display screen by described memory element through reduction high-definition picture segmentation
For the color data of N number of subregion, and the color data extracting each subregion from the color data of described N number of subregion line by line is sent out
Give write control module；
Said write control module, for receiving the color data of described each subregion line by line from described storage control module, and
And the color data of described each subregion is stored in output buffer module line by line；
Described output buffer module, for receiving and store the number of colors of described each subregion line by line from said write control module
According to, wherein, the storage depth of described output buffer module is identical with the number of pixels of a line color data of described each subregion；
Output control module, for exporting the color data of each subregion of storage in described output buffer module line by line to institute
State display screen for showing.
Image display device the most according to claim 3, it is characterised in that including:
Described input buffer module comprises two groups of input-buffer spaces, and often group input-buffer space comprises M input-buffer, often group
M input-buffer in input-buffer space respectively with described M passage one_to_one corresponding, wherein, in one group of input-buffer space
An input-buffer for storing a line color data of a passage in described M passage, and each input-buffer
Storage depth identical with the number of pixels of a line color data of described each passage；
Described memory element comprises two frame buffers, and each frame buffer is for storage one vertical frame dimension image in different resolution；
Described output buffer module comprises two groups of output spatial caches, and often group output spatial cache comprises N number of output caching, often group
Output spatial cache in N number of output caching respectively with described N number of subregion one_to_one corresponding, wherein, one group output spatial cache in
An output caching for storing a line color data of a subregion in described N number of subregion, and each output caching
Storage depth identical with the number of pixels of a line color data of described each subregion.
Image display device the most according to claim 4, it is characterised in that
Described reception control module, specifically for storing a line color data of described each passage respectively to described input
After M the input-buffer in one group of input-buffer space of cache module, the next line color data of described each passage is divided
Do not store to M the input-buffer in another group input-buffer space of described input buffer module；
Described reading control module, specifically for slow to one group of input of described input buffer module in described reception control module
Deposit space carry out storage operation time, from described input buffer module another group input-buffer space read described each passage
Lastrow color data；
Described storage control module, specifically for the view data according to described M passage in described high-definition picture
Position, stores to memory element line by line by the color data of each passage corresponding to the high-definition picture of present frame
The correspondence position of individual frame buffer, with the high-definition picture of reduction present frame, is additionally operable to according to described high-definition picture described
N number of subregion when showing in display screen by another frame buffer in described memory element through the height of former frame of reduction
Image in different resolution is divided into the color data of N number of subregion, and extracts each point line by line from the color data of described N number of subregion
The color data in district is sent to said write control module；
Said write control module, specifically for storing a line color data of described each subregion respectively to described output
After N number of output caching of one group of output spatial cache of cache module, the next line color data of described each subregion is divided
Do not store to N number of output caching of another group output spatial cache of described output buffer module；
Described output control module, specifically for slow to one group of output of described output buffer module in said write control module
Deposit space carry out storage operation time, from described output buffer module another group output spatial cache read described each subregion
A line color data and export to described display screen for showing.
6. a method for displaying image, it is characterised in that be used for showing for high-definition picture is sent to display screen, described
Method includes:
Described high-definition picture is carried out segmentation according to M quadrant and forms the view data of M passage, wherein, M >=2, described
The view data of M passage is low resolution image data；
By the video display interface of M low resolution, the view data of described M passage is sent to described display screen be used for
Display, wherein, the video display interface of described M low resolution and the view data one_to_one corresponding of described M passage, and one
The video display interface of individual low resolution is for the view data of one passage of transmission.
7. a method for displaying image, it is characterised in that use for the high-definition picture from video card being sent to display screen
In display, described method includes:
Received the view data of M passage from described video card by the video display interface of M low resolution, logical from described M
The view data in road is extracted the color data of each passage line by line, according to the view data of described M passage at described high score
Position in resolution image, the correspondence position stored line by line to memory element by the color data of described each passage is with reduction
Described high-definition picture, N number of subregion when showing in described display screen according to described high-definition picture is by described
In memory element, the high-definition picture through reduction is divided into the color data of N number of subregion, and by the color of described N number of subregion
The color data of each subregion of data is sent to display screen line by line for showing, wherein, M >=2, N >=2, the figure of described M passage
As described high-definition picture is split formed low-resolution image number according to M quadrant by described video card by data
According to, the video display interface of described M low resolution and the view data one_to_one corresponding of described M passage, and one low point
The video display interface of resolution is for the view data of one passage of transmission；
Described memory element receives and stores the color data of described each passage line by line to reduce described high-definition picture.
Method the most according to claim 7, it is characterised in that described by the video display interface of M low resolution from
Described video card receives the view data of M passage, extracts the color of each passage from the view data of described M passage line by line
Data, according to the view data of described M the passage position in described high-definition picture, by the color of described each passage
The correspondence position that data store line by line to memory element is to reduce described high-definition picture, according to described high-definition picture
N number of subregion when showing in described display screen by described memory element through reduction high-definition picture be divided into N
The color data of individual subregion, and the color data of each subregion of color data of described N number of subregion is sent to line by line display
Screen is used for showing, including:
Receive control module and receive described M passage by the video display interface of described M low resolution from described video card
View data, and the color data extracting each passage from the view data of described M passage line by line stores to input slow
Storing module；
Described input buffer module receives and stores the color data of described each passage line by line from described reception control module, its
In, the storage depth of described input buffer module is identical with the number of pixels of a line color data of described each passage；
Read control module from described input buffer module, read the color data of described each passage line by line, and by described
The color data of each passage is sent to storage control module line by line；
Described storage control module receives the color data of described each passage line by line from described reading control module, and according to
The view data of described M passage position in described high-definition picture, by the color data of described each passage line by line
The correspondence position stored to memory element is to reduce described high-definition picture, according to described high-definition picture described aobvious
N number of subregion when showing in display screen by described memory element through reduction high-definition picture be divided into N number of subregion
Color data, and the color data extracting each subregion from the color data of described N number of subregion line by line be sent to write control
Molding block；
Said write control module receives the color data of described each subregion line by line from described storage control module, and by institute
The color data stating each subregion stores in output buffer module line by line；
Described output buffer module receives line by line from said write control module and stores the color data of described each subregion, its
In, the storage depth of described output buffer module is identical with the number of pixels of a line color data of described each subregion；
The color data of each subregion of storage in described output buffer module is exported to described aobvious by output control module line by line
Display screen is used for showing.
Method the most according to claim 8, it is characterised in that
Described reading control module reads the color data of described each passage from described input buffer module line by line, and will
The color data of each passage is sent to storage control module line by line, including: described reading control module controls described reception
When module carries out storage operation to one group of input-buffer space of described input buffer module, another from described input buffer module
One group of input-buffer space is read the lastrow color data of described each passage, and described lastrow color data is sent
To described storage control module；
Described storage control module receives the color data of described each passage line by line from described reading control module, and according to
The view data of described M passage position in described high-definition picture, by the color data of described each passage line by line
The correspondence position stored to memory element, to reduce described high-definition picture, is additionally operable to exist according to described high-definition picture
N number of subregion when showing in described display screen by described memory element through reduction high-definition picture be divided into N number of
The color data of subregion, including: described storage control module according to the view data of described M passage at described high resolution graphics
Position in Xiang, stores to memory element line by line by the color data of each passage corresponding to the high-definition picture of present frame
In a frame buffer correspondence position with reduce present frame high-definition picture, be additionally operable to according to described high-definition picture
N number of subregion when showing in described display screen is by previous through reduce in another frame buffer in described memory element
The high-definition picture of frame is divided into the color data of N number of subregion；
The described color data by each subregion stores in output buffer module line by line, including: by described each subregion
After a line color data stores N number of output caching of one group of output spatial cache to described output buffer module respectively, will
The next line color data of described each subregion stores the N of another group output spatial cache to described output buffer module respectively
In individual output caching；
The color data of each subregion of storage in described output buffer module is exported to institute by described output control module line by line
State display screen for showing, including: described output control module in said write control module to described output buffer module
When one group of output spatial cache carries out storage operation, from another group output spatial cache of described output buffer module, read institute
State a line color data of each subregion and export to described display screen for showing.
10. an image display system, it is characterised in that include video card as claimed in claim 1 and as in claim 2-5
Image display device described in any one,
Described video card is connected with described image display device by the video display interface of M low resolution,
Described video card is used for showing for high-definition picture is sent to display screen；
Described device used for image display is used for showing in the high-definition picture from described video card is sent to described display screen.
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