CN105989801B

CN105989801B - LED display methods, LED display unit array, display control unit

Info

Publication number: CN105989801B
Application number: CN201510075594.7A
Authority: CN
Inventors: 赵小明; 杨城; 周梦姣
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xi'an Nova Nebula Technology Co., Ltd.
Priority date: 2015-02-12
Filing date: 2015-02-12
Publication date: 2018-11-30
Anticipated expiration: 2035-02-12
Also published as: CN105989801A

Abstract

The present invention relates to LED display methods, LED display unit array and display control unit, the method includes the steps：Receive the original image of input；Sub-pix down-sampling is carried out to obtain multiple sub-pix color data corresponding to each LED display unit to original image；Complementary color processing is carried out respectively the multiple sub-pix color data of multiple LED display units to obtain sub-pix color data after multiple complementary colors processing of each LED display unit；And the first, second, and third color LED being triangularly arranged in corresponding LED display unit is respectively driven according to sub-pix color data after the processing of the multiple complementary color of each LED display unit and is performed image display.The present invention performs image display in conjunction with sub-pix down-sampling technology and sub-pix color data complementary color Processing Algorithm for physics sub-pix (LED) layout of red-green-blue honeycomb arrangement, can effectively promote brightness of display screen resolution ratio.

Description

LED display methods, LED display unit array, display control unit

Technical field

The present invention relates to technical field of LED display, in particular to a kind of LED display methods based on sub-pix down-sampling, A kind of LED display unit array and a kind of display control unit based on sub-pix down-sampling.

Background technique

Display technology is one of most critical part in the included technology of information industry, LED (Light Emitting Diode, light emitting diode) display screen system as novel display technology, with its energy-saving and environmental protection, it is highlighted the advantages that gradually by Market receives, to be widely used in the fields such as city medium, urban transportation.

Being that LED display industry constantly pursues a goal is shown to the pursuit such as high-resolution of display quality.

Existing LED display mostly uses three primary colours display technology, and the promotion of resolution ratio is only adopted using traditional Sample technology, it is main to promote resolution ratio using the density for increasing physical picture element and scale.At high cost, the room for promotion of this technology It is limited, also have that there are certain drawbacks in terms of manufacture craft and heat dissipation.In the display system, sub-pix sampling technique pair is utilized Original image will appear color Aliasing Problem when sampling.It is existing a kind of based on the anti-color aliasing filter of display equipment sub-pix arrangement Wave method is referred to application No. is 201310314907.0, and entitled " super-resolution based on two-dimensional sub-pixel sampling is aobvious Show method and device " Chinese invention patent application although can eliminate color mistake to a certain extent can obscure original image Picture cannot get a desired effect.

Specifically, as disclosed by above-mentioned application for a patent for invention, to original image R, G, B primary color component (color data) point It anti-color aliasing Shi Jia not filter accordingly, then to filtered image according to the space bit of display equipment two-dimensional sub-pixel arrangement Structure progress sub-pix sampling is set to show with the super-resolution for realizing display equipment.However, disclosed by the application for a patent for invention Content is to eliminate color mistake by constructing filter to each primary colours of original image, may make image blur, it is difficult to reach To high-resolution and effect high-definition.

Therefore, at present in LED display field, there are no a kind of LED display methods can be veritably raising image resolution ratio It combines with eliminating color mistake to reach fine definition and high-resolution.

Summary of the invention

To overcome the deficiencies in the prior art, the present invention provides a kind of display side LED based on sub-pix down-sampling Method, a kind of LED display unit array and a kind of display control unit based on sub-pix down-sampling.

Specifically, a kind of LED display methods based on sub-pix down-sampling provided in an embodiment of the present invention, be suitable for the application of in A kind of LED display unit array.The LED display unit array includes multiple LED display units, each described LED is shown Unit includes a first color LED being triangularly arranged, a second color LED and a third color LED.It is described LED display methods includes step：(S1) original image for receiving input, wherein the original image includes and multiple original pixels Corresponding multiple three primary colours data；(S2) sub-pix down-sampling is carried out to the original image to obtain corresponding to each Multiple sub-pix color data of the LED display unit；(S3) to the multiple sub-pix of the multiple LED display unit Color data carries out complementary color processing to obtain sub-pix number of colours after multiple complementary colors processing of each LED display unit According to；And (S4) drives respectively according to sub-pix color data after the processing of the multiple complementary color of LED display unit described in each Move the first color LED, the second color LED and the third face in corresponding LED display unit in triangle arrangement Color LED is performed image display.

In one embodiment of the invention, above-mentioned steps (S2) include：Every three for sampling the original image are adjacent A color data in the three primary colours data of each of original pixels original pixels, to obtain showing with corresponding LED The corresponding three sub- pictures of the first color LED, the second color LED and third color LED difference in unit Plain color data.

In one embodiment of the invention, above-mentioned steps (S3) include：One target sub-pix color data is carried out When complementary color processing, mark off comprising the target sub-pix color data and adjacent with the target sub-pix color data more The block of pixels of a sub-pix color data and based in the block of pixels multiple sub-pix color data to be processed and with it is described Non- Sample Color Data in the three primary colours data of the corresponding multiple original pixels of multiple sub-pix color data to be processed Judge whether to need to carry out complementary color and determine complementary color position and complementary color value size when needing to carry out complementary color, wherein the multiple Sub-pix color data to be processed includes the target sub-pix color data and is not with the target sub-pix color data With the sub-pix color data of color type.

In one embodiment of the invention, above-mentioned to judge whether to need the method for carrying out complementary color include：Judge the mesh It is described whether the first non-Sample Color Data in the three primary colours data of the corresponding original pixels of mark sub-pix color data is greater than All and the described first non-Sample Color Data is the sub-pix color data of same color type in block of pixels, and is tied in judgement Determination needs to carry out the first component complementary color when fruit is "Yes"；And judge the corresponding original image of the target sub-pix color data Whether the second non-Sample Color Data in the three primary colours data of element is greater than all in the block of pixels does not sample with described second Color data is the sub-pix color data of same color type, and determination needs to carry out second point when judging result is "Yes" Measure complementary color.

In one embodiment of the invention, the method for above-mentioned determining complementary color position includes：When determination needs to carry out first When component complementary color, all sub-pixes with the described first non-Sample Color Data for same color type in the block of pixels are found out The corresponding first position of the maximum value is simultaneously determined as the first component complementary color position by maximum value in color data；And When determination needs to carry out second component complementary color, it is same for finding out all in the block of pixels and the described second non-Sample Color Data The corresponding second position of the maximum value is simultaneously determined as by maximum value in the sub-pix color data of one color type Two component complementary color positions.

In one embodiment of the invention, the method for above-mentioned determining complementary color value size includes：(i) when determination needs to carry out When the first component and second component complementary color, the target sub-pix color data, first and second described position are respectively corresponded Original pixels three primary colours data in be two of same color type with the target sub-pix color data and do not sample Updated value of the average value of color data three as the target sub-pix color data, by the corresponding Asia in the first position Pixel color data, the corresponding original pixels of the target sub-pix color data three primary colours data in described first Set non-Sample Color Data, the corresponding original image in the second position that corresponding sub-pix color data is same color type Sub-pix color data corresponding with the first position in the three primary colours data of element does not sample face for same color type Updated value of the chromatic number according to the average value of three as the corresponding sub-pix color data in the first position, by the second position In corresponding sub-pix color data, the three primary colours data of the corresponding original pixels of the target sub-pix color data with institute It is corresponding for the non-Sample Color Data of same color type, the first position to state the corresponding sub-pix color data in the second position Original pixels three primary colours data in corresponding with second position sub-pix color data be same color type Updated value of the average value of non-Sample Color Data three as the corresponding sub-pix color data in the second position；(ii) when It determines when needing to carry out the first component without carrying out second component complementary color, by the target sub-pix color data, described In the three primary colours data of the corresponding original pixels in first position is same color type with the target sub-pix color data Both non-Sample Color Datas updated value of the average value as the target sub-pix color data, by the first position In corresponding sub-pix color data, the three primary colours data of the corresponding original pixels of the target sub-pix color data with institute State the average value conduct of both non-Sample Color Datas that the corresponding sub-pix color data in first position is same color type The updated value of the corresponding sub-pix color data in the first position；(iii) when determine need to carry out second component without When carrying out the first component complementary color, by the target sub-pix color data, three bases of the corresponding original pixels in the second position In chromatic number evidence is the average value of both non-Sample Color Datas of same color type with the target sub-pix color data As the updated value of the target sub-pix color data, by the corresponding sub-pix color data in the second position, the mesh Mark the sub-pix color corresponding with the second position in the three primary colours data of the corresponding original pixels of sub-pix color data Data are the average value of both non-Sample Color Datas of same color type as the corresponding sub-pix face in the second position The updated value of chromatic number evidence.

In one embodiment of the invention, above-mentioned block of pixels is nine centered on the target sub-pix color data Palace lattice block of pixels, and the target sub-pix color data is non-edge sub-pix color data.

In one embodiment of the invention, above-mentioned steps (S4) include：When the first LED that driving is disposed adjacent is aobvious When showing unit and second LED display unit, the complementary color for being located at first color type adjacent in an odd-numbered line is utilized After processing after the processing of the complementary color of sub-pix color data and second color type sub-pix color data and be located at it is described Sub-pix color data respectively drives after the complementary color processing of a third color type in an adjacent even number line of odd-numbered line Each color LED in first LED display unit, and utilize a third color class being located in the odd-numbered line After the complementary color processing of type at the complementary color of sub-pix color data and adjacent first color type in the even number line Sub-pix color data respectively drives described the after the processing of the complementary color of sub-pix color data and second color type after reason Each color LED in two LED display units.

In addition, a kind of LED display unit array provided in an embodiment of the present invention, is suitable for the application of in LED display.It is described LED display unit array includes：Multiple repetitive units that arrangement is repeated cyclically along first direction and second direction.It is each heavy Multiple unit includes first LED display unit and second LED display unit.First LED display unit includes position In an odd-numbered line and the first color LED and a second color LED that are disposed adjacent and it is located at adjacent with the odd-numbered line An even number line a third color LED and first, second and third color in first LED display unit LED is triangularly arranged.Second LED display unit includes being located at a third color LED of the odd-numbered line and being located at The even number line and a first color LED being disposed adjacent an and second color LED and second LED display unit In the first, second and third color LED be triangularly arranged.

In one embodiment of the invention, above-mentioned first color LED, the second color LED and the third color LED is respectively the different persons in red LED, green LED and blue led.

In addition, a kind of display control unit based on sub-pix down-sampling provided in an embodiment of the present invention, it is aobvious to be suitable for driving Show that panel performs image display, the display panel includes the multiple display units arranged with array manner.Each is described aobvious Show that unit includes a first color physics sub-pix being triangularly arranged, a second color physics sub-pix and one Three color physics sub-pixes.The display control unit includes：Sub-pix downsampling unit, for the original image to input into Row sub-pix down-sampling is to obtain multiple sub-pix color data corresponding to each display unit, wherein the original Beginning image includes multiple three primary colours data corresponding with multiple original pixels；Sub-pix color data complementary color processing unit, It is described aobvious to obtain each that complementary color processing is carried out for the multiple sub-pix color data the multiple display unit Show unit multiple complementary colors processing after sub-pix color data；Display driver element, for according to display unit described in each The processing of the multiple complementary color after sub-pix color data respectively drive in corresponding display unit in described the of triangle arrangement One color physics sub-pix, the second color physics sub-pix and the third color physics sub-pix perform image display.

In one embodiment of the invention, the sub-pix downsampling unit is specifically used for：Sample the original image Each of every three adjacent original pixels three primary colours data of original pixels in a color data, to obtain and phase The first color physics sub-pix, the second color physics sub-pix and the institute being triangularly arranged in corresponding display unit It states third color physics sub-pix and distinguishes corresponding three sub-pix color data.

In one embodiment of the invention, above-mentioned sub-pix color data complementary color processing unit is specifically used for：To one Target sub-pix color data carry out complementary color processing when, mark off comprising the target sub-pix color data and with the target The block of pixels of the adjacent multiple sub-pix color data of sub-pix color data and based on multiple to be processed in the block of pixels The three primary colours of sub-pix color data and multiple original pixels corresponding with the multiple sub-pix color data to be processed Non- Sample Color Data in data judge whether to need to carry out complementary color and be determined when needing to carry out complementary color complementary color position and Complementary color value size, wherein the multiple sub-pix color data to be processed include the target sub-pix color data and with it is described Target sub-pix color data is the sub-pix color data of different colours type.

In one embodiment of the invention, what above-mentioned sub-pix color data complementary color processing unit used judges whether to need The method for carrying out complementary color includes：In the three primary colours data for judging the corresponding original pixels of the target sub-pix color data It is same color that whether the first non-Sample Color Data, which is greater than all in the block of pixels and the described first non-Sample Color Data, The sub-pix color data of type, and determination needs to carry out the first component complementary color when judging result is "Yes"；And judge institute Whether the second non-Sample Color Data stated in the three primary colours data of the corresponding original pixels of target sub-pix color data is greater than All and the described second non-Sample Color Data is the sub-pix color data of same color type in the block of pixels, and is sentencing Determination needs to carry out second component complementary color when disconnected result is "Yes".

In one embodiment of the invention, the determination complementary color position that above-mentioned sub-pix color data complementary color processing unit uses The method set includes：When determine need to carry out the first component complementary color when, find out and all in the block of pixels do not adopted with described first Sample color data is the maximum value in the sub-pix color data of same color type and the maximum value is one the corresponding One position is determined as the first component complementary color position；And when determination needs to carry out second component complementary color, find out the block of pixels In it is all with the described second non-Sample Color Data for the maximum value in the sub-pix color data of same color type and by institute It states the corresponding second position of maximum value and is determined as second component complementary color position.

In one embodiment of the invention, the determination complementary color value that above-mentioned sub-pix color data complementary color processing unit uses The method of size includes：(i) when determination needs to carry out the first component and second component complementary color, by the target sub-pix color In data, the three primary colours data of the corresponding original pixels in first and second described position with the target sub-pix color Data are the average value of two non-Sample Color Data threes of same color type as the target sub-pix color data Updated value, the corresponding sub-pix color data in the first position, the target sub-pix color data is corresponding original Sub-pix color data corresponding with the first position in the three primary colours data of pixel is not sampling for same color type Sub-pix corresponding with the first position in color data, the three primary colours data of the corresponding original pixels in the second position Color data is the average value of the non-Sample Color Data three of same color type as the corresponding sub- picture in the first position The updated value of plain color data, by the corresponding sub-pix color data in the second position, the target sub-pix color data Sub-pix color data corresponding with the second position in the three primary colours data of corresponding original pixels is same color class In the non-Sample Color Data of type, the three primary colours data of the corresponding original pixels in the first position with the second position pair The sub-pix color data answered is the average value of the non-Sample Color Data three of same color type as the second position The updated value of corresponding sub-pix color data；(ii) need to carry out the first component without carrying out second component benefit when determining When color, by the target sub-pix color data, the three primary colours data of the corresponding original pixels in the first position with institute The average value for stating both non-Sample Color Datas that target sub-pix color data is same color type is sub- as the target The updated value of pixel color data, by the corresponding sub-pix color data in the first position, the target sub-pix number of colours It is same color according to the sub-pix color data corresponding with the first position in the three primary colours data of corresponding original pixels Updated value of the average value of both non-Sample Color Datas of type as the corresponding sub-pix color data in the first position； (iii) when determination needs to carry out second component without carrying out the first component complementary color, by the target sub-pix number of colours According in the three primary colours data of, corresponding original pixels in the second position being same face with the target sub-pix color data Updated value of the average value of both non-Sample Color Datas of color type as the target sub-pix color data, by described In the corresponding sub-pix color data in two positions, the three primary colours data of the corresponding original pixels of the target sub-pix color data Sub-pix color data corresponding with the second position be that both non-Sample Color Data of same color type being averaged It is worth the updated value as the corresponding sub-pix color data in the second position.

In one embodiment of the invention, above-mentioned display driver element is specifically used for：When driving be disposed adjacent one When the first display unit and second display unit, the benefit for being located at first color type adjacent in an odd-numbered line is utilized Sub-pix color data and it is located at and institute after the processing of the complementary color of sub-pix color data and second color type after color processing Sub-pix color data is driven respectively after stating the complementary color processing of a third color type in an adjacent even number line of odd-numbered line Each color physics sub-pix in first display unit is moved, and utilizes a third face being located in the odd-numbered line The benefit of sub-pix color data and adjacent first color type in the even number line after the complementary color processing of color type Sub-pix color data respectively drives institute after the processing of the complementary color of sub-pix color data and second color type after color processing State each color physics sub-pix in the second display unit.

Therefore, the above embodiment of the present invention is directed to physics sub-pix (such as LED) cloth of red-green-blue honeycomb arrangement Office, performs image display in conjunction with sub-pix down-sampling technology and sub-pix color data complementary color Processing Algorithm, can effectively mention It rises brightness of display screen resolution ratio and traditional sub-pix down-sampling can be eliminated in the case where not influencing picture clarity and cause Color mistake.

Through the following detailed description with reference to the accompanying drawings, other aspects of the invention and feature become obvious.But it should know Road, which is only the purpose design explained, not as the restriction of the scope of the present invention, this is because it should refer to Appended claims.It should also be noted that unless otherwise noted, it is not necessary to which scale attached drawing, they only try hard to concept Ground illustrates structure and process described herein.

Detailed description of the invention

Below in conjunction with attached drawing, specific embodiments of the present invention will be described in detail.

Fig. 1 is a kind of schematic diagram of LED display unit array of the embodiment of the present invention.

Fig. 2 is the sub-pix down-sampling schematic illustration of the embodiment of the present invention.

Fig. 3 is the sub-pix down-sampling result schematic diagram of the embodiment of the present invention.

Fig. 4 a to 4c is that the embodiment of the present invention carries out used by complementary color processing the various sub-pix color data of odd-numbered line Nine grids block of pixels schematic diagram.

Fig. 5 a to 5c is that several rows of antithesis of the embodiment of the present invention various sub-pix color data carry out used by complementary color processing Nine grids block of pixels schematic diagram.

Fig. 6 is a kind of LED display methods flow diagram based on sub-pix down-sampling of the embodiment of the present invention.

Fig. 7 is a kind of functional module signal of display control unit based on sub-pix down-sampling of the embodiment of the present invention Figure.

Specific embodiment

In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention Specific embodiment be described in detail.

It is of the invention for ease of understanding, it will be laid out below with LED and display methods two large divisions is described in detail respectively.

Referring to Figure 1, the LED display unit array of the present embodiment includes multiple LED display units (or LED pixel) P, It is for example applied to LED display.Single led display unit P is laid out using three color triangles, namely with red (R), blue (B) and green (G) three kinds of colors are as primary colours, and tri- LED of R, B, G are arranged in the layout type of triangle.In addition, these three LED is not got together not instead of closely in space layout, at regular intervals.Red LED, green LED, blue led are adopted With LED pipe generallyd use in current industry.Final entire LED display unit array is shown by the LED of above-mentioned arrangement Show what unit P periodic extension on line direction and column direction was constituted.Layout type is as shown in Figure 1, it is " red-green-blue " Honeycomb arrangement mode.

In addition, can also be seen that from Fig. 1：Odd-numbered line is periodical in the row direction using RGB combination as the first repetitive unit Repeated arrangement, even number line are combined as the second repetitive unit using BRG and are repeated cyclically arrangement in the row direction；Namely odd-numbered line The difference that puts in order of first repetitive unit and the RGB in the second repetitive unit of even number line；For another angle, entirely LED display unit array amounts to 6 LED as a repetitive unit in line direction using odd-numbered line RGB and adjacent even number line BRG With repeated arrangement periodical on column direction.Herein it is noted that arrangement mode shown in Fig. 1 is only for example, not it is used to limit The system present invention.

Fig. 2 is referred to, for the three-color LED triangular layout in above-mentioned LED display unit P, the LED of the embodiment of the present invention Display methods uses sub-pix down-sampling technology.Sub-pix down-sampling technology refers to during display with each primary colours sub-pix (sub-pixel) basic processing unit as addressing, sampling and reconstruct.Since the sub-pix of spatial position separation is close each other It is staggered, under viewing distance appropriate, spatial color will occur for the different colours sub-pix of discharge together mixed side by side It closes, forms full-color image.Obviously, this technology improves the display density of luminance component, to effectively improve equipment Show quality.In the following, by taking the LED placement scheme of above-mentioned " red-green-blue honeycomb arrangement " as an example, the sub-pix of the present embodiment Down-sampling is then to sample corresponding R respectively from the three primary colours data of 3 original pixels adjacent in original image, and G or B component reflect It is mapped on the red in a LED display unit P, green and blue led.

In addition, the present embodiment is directed to sub-pix down-sampling display technology bring color Problem-Error, core solution To carry out complementary color to sample color component (or sub-pix color data), for example, the sample color component of sub-pix is R points Amount then can compensate G, B component to the sub-pix, it is assumed that the data distribution obtained after sub-pix down-sampling is as shown in figure 3, then in Asia It can be using specific complementary color processing scheme as described below after pixel down-sampling：

【Odd-numbered line complementary color processing scheme】：

(1) complementary color processing is carried out to odd-numbered line sub-pix red data R [i, j] in Fig. 3：Mark off one comprising R and with Nine grids block of pixels shown on the left of the block of pixels of its at least one adjacent B and at least one G, such as Fig. 4 a, if sub-pix The initial value of red data R [i, j] is R0 [i, j] and sets with sub-pix red data R [i, j] in corresponding original image Non- Sample Color Data namely green data and blue data in the three primary colours data of original pixels [i, j] be respectively G0 [i, J] and B0 [i, j]；For purposes of illustration only, the center sub-pix red data on the left of Fig. 4 a in nine grids is labeled as R0, three sub- pictures Plain green data is respectively labeled as G1, G2, G3 and three sub-pix blue datas and is respectively labeled as B1, B2, B3, after label As a result as shown in the right side Fig. 4 a.Then：

(1a) judges whether to need complementary color

Judge whether to need to mend the condition of G component：G0 [i, j] > G1 &&G0 [i, j] > G2 &&G0 [i, j] > G3, Judge whether all sub-pix green datas in nine grids block of pixels are both less than G0 [i, j], if both less than G0 [i, j], It then indicates to need to carry out G component complementary color；

Judge whether to need to mend the condition of B component：B0 [i, j] > B1 &&B0 [i, j] > B2 &&B0 [i, j] > B3, Judge whether all sub-pix blue datas in nine grids block of pixels are both less than B0 [i, j], if both less than B0 [i, j], It then indicates to need to carry out B component complementary color；

(1b) determines complementary color position

The present embodiment is designed to G1, and the corresponding position of maximum value carries out complementary color in tri- sub-pix green datas of G2, G3. If a indicates G1, the corresponding position of maximum value in tri- sub-pix green datas of G2, G3, if having more than one position while being most Big value then selects complementary color position by the number sequencing of these three sub-pix green datas, for example, when G1=G2 and for this three Maximum value in a sub-pix green data then selects the corresponding position G1 as complementary color position；

The present embodiment is designed to B1, and the corresponding position of maximum value carries out complementary color in tri- sub-pix blue datas of B2, B3. If b indicates B1, the corresponding position of maximum value in tri- sub-pix blue datas of B2, B3, if having more than one position while being most Big value then selects complementary color position by the number sequencing of these three sub-pix blue datas, for example, when B2=B3 and for this three Maximum value in a sub-pix blue data then selects the corresponding position B2 as complementary color position；

(1c) determines complementary color value size (namely sub-pix color data values size or updated value after complementary color processing)

(i) work as G, B component is required to complementary color

Then complementary color value size is：

R [i, j]=(R0 [i, j]+R0 [a]+R0 [b])/3

G [a]=(G0 [i, j]+G0 [a]+G0 [b])/3

B [b]=(B0 [i, j]+B0 [a]+B0 [b])/3

(ii) when G component needs complementary color, B component not to need complementary color

Then complementary color value size is：

R [i, j]=(R0 [i, j]+R0 [a])/2

G [a]=(G0 [i, j]+G0 [a])/2

(iii) when B component needs complementary color, G component not to need complementary color

Then complementary color value size is：

R [i, j]=(R0 [i, j]+R0 [b])/2

B [b]=(B0 [i, j]+B0 [b])/2

(iv) when G, B component do not need complementary color, then without calculating complementary color value, initial value is directlyed adopt；

Above-mentioned R0 [a] is not sample red data, G0 in the three primary colours data of the original pixels of the position a in original image [a] is the initial value of the sub-pix green data of the position a, the three primary colours number that B0 [a] is the original pixels of the position a in original image Do not sample blue data in, R0 [b] be in original image in the three primary colours data of the original pixels of the position b do not sample it is red Chromatic number according to, G0 [b] be in the three primary colours data of the original pixels of the position b in original image do not sample green data, B0 [b] is The initial value of the sub-pix blue data of the position b.

(2) complementary color processing is carried out to odd-numbered line sub-pix green data G [i, j] in Fig. 3：Mark off one comprising G1 and with Nine grids block of pixels shown on the left of the block of pixels of its at least one adjacent R and at least one B, such as Fig. 4 b, if sub-pix The initial value of green data G [i, j] is G0 [i, j] and sets with sub-pix green data G [i, j] in corresponding original image Non- Sample Color Data namely red data and blue data in the three primary colours data of original pixels [i, j] be respectively R0 [i, J] and B0 [i, j]；For purposes of illustration only, the center sub-pix green data on the left of Fig. 4 b in nine grids is labeled as G0, three sub- pictures Plain red data is labeled as R1, R2, and R3, three sub-pix blue datas are respectively labeled as B1, B2, B3, and the result after label is such as Shown on the right side of Fig. 4 b.Then：

(2a) judges whether to need complementary color

Judge whether to need to mend the condition of R component：R0 [i, j] > R1 &&R0 [i, j] > R2 &&R0 [i, j] > R3, Judge whether all sub-pix red datas in nine grids block of pixels are both less than R0 [i, j], if both less than R0 [i, j], It then indicates to need to carry out R component complementary color；

(2b) determines complementary color position

The present embodiment is designed to R1, and the corresponding position of maximum value carries out complementary color in tri- sub-pix red datas of R2, R3. If a indicates R1, the corresponding position of maximum value in tri- sub-pix red datas of R2, R3, if having more than one position while being most Big value then selects complementary color position by the number sequencing of these three sub-pix red datas, for example, when R1=R2 and for this three Maximum value in a sub-pix red data then selects the corresponding position R1 as complementary color position；

The present embodiment is designed to B1, and the corresponding position of maximum value carries out complementary color in tri- sub-pix blue datas of B2, B3. If b indicates B1, the corresponding position of maximum value in tri- sub-pix blue datas of B2, B3, if having more than one position while being most Big value then selects complementary color position by the number sequencing of these three sub-pix blue datas, for example, when B1=B2 and for this three Maximum value in a sub-pix blue data then selects the corresponding position B1 as complementary color position；

(2c) determines complementary color value size (namely sub-pix color data values size or updated value after complementary color processing)

(i) work as R, B component is required to complementary color

Then complementary color value size is：

G [i, j]=(G0 [i, j]+G0 [a]+G0 [b])/3

R [a]=(R0 [i, j]+R0 [a]+R0 [b])/3

B [b]=(B0 [i, j]+B0 [a]+B0 [b])/3

(ii) when R component needs complementary color, B component not to need complementary color

Then complementary color value size is：

G [i, j]=(G0 [i, j]+G0 [a])/2

R [a]=(R0 [i, j]+R0 [a])/2

(iii) when B component needs complementary color, R component not to need complementary color

Then complementary color value size is：

G [i, j]=(G0 [i, j]+G0 [b])/2

B [b]=(B0 [i, j]+B0 [b])/2

(iv) when R, B component do not need complementary color, then without calculating complementary color value, initial value is directlyed adopt；

Above-mentioned G0 [a] is not sample green data, R0 in the three primary colours data of the original pixels of the position a in original image [a] is the initial value of the sub-pix red data of the position a, the three primary colours number that B0 [a] is the original pixels of the position a in original image Do not sample blue data in, G0 [b] be in original image in the three primary colours data of the original pixels of the position b do not sample it is green Chromatic number according to, R0 [b] be in the three primary colours data of the original pixels of the position b in original image do not sample red data, B0 [b] is The initial value of the sub-pix blue data of the position b.

(3) complementary color processing is carried out to odd-numbered line sub-pix blue data B [i, j] in Fig. 3：Mark off one comprising B and with Nine grids block of pixels shown on the left of the block of pixels of its at least one adjacent R and at least one G, such as Fig. 4 c, if sub-pix The initial value of blue data B [i, j] is B0 [i, j] and sets with sub-pix blue data B [i, j] in corresponding original image Non- Sample Color Data namely red data and green data in the three primary colours data of original pixels [i, j] are respectively R0 [i, j] and G0 [i, j]；For purposes of illustration only, the center sub-pix blue data on the left of Fig. 4 c in nine grids is labeled as B0, three Asias Pixel green data is respectively labeled as G1, G2, G3 and three sub-pix red datas and is respectively labeled as R1, R2, R3, after label Result on the right side of Fig. 4 c shown in.Then：

(3a) judges whether to need complementary color

(3b) determines complementary color position

The present embodiment is designed to G1, and the corresponding position of maximum value carries out complementary color in tri- sub-pix green datas of G2, G3. If b indicates G1, the corresponding position of maximum value in tri- sub-pix green datas of G2, G3, if having more than one position while being most Big value then selects complementary color position by the number sequencing of these three sub-pix green datas, for example, when G2=G3 and for this three Maximum value in a sub-pix green data then selects the corresponding position G2 as complementary color position；

(3c) determines complementary color value size (namely sub-pix color data values size or updated value after complementary color processing)

(i) work as R, G component is required to complementary color

Then complementary color value size is：

B [i, j]=(B0 [i, j]+B0 [a]+B0 [b])/3

R [a]=(R0 [i, j]+R0 [a]+R0 [b])/3

G [b]=(G0 [i, j]+G0 [a]+G0 [b])/3

(ii) when R component needs complementary color, G component not to need complementary color

Then complementary color value size is：

B [i, j]=(B0 [i, j]+B0 [a])/2

R [a]=(R0 [i, j]+R0 [a])/2

(iii) when G component needs complementary color, R component not to need complementary color

Then complementary color value size is：

B [i, j]=(B0 [i, j]+B0 [b])/2

G [b]=(G0 [i, j]+G0 [b])/2

(iv) when R, G component do not need complementary color, then without calculating complementary color value, initial value is directlyed adopt；

Above-mentioned B0 [a] is not sample blue data, R0 in the three primary colours data of the original pixels of the position a in original image [a] is the initial value of the sub-pix red data of the position a, the three primary colours number that G0 [a] is the original pixels of the position a in original image Green data is not sampled in, and B0 [b] is not sample indigo plant in the three primary colours data of the original pixels of the position b in original image Chromatic number evidence, R0 [b] are not sample red data, G0 [b] in the three primary colours data of the original pixels of the position b in original image For the initial value of the sub-pix green data of the position b.

【Even number line complementary color processing scheme】：

(4) complementary color processing is carried out to even number line sub-pix red data R [i, j] in Fig. 3：Mark off one comprising R and with Nine grids block of pixels shown on the left of the block of pixels of its at least one adjacent B and at least one G, such as Fig. 4 a, if sub-pix The initial value of red data R [i, j] is R0 [i, j] and sets with sub-pix red data R [i, j] in corresponding original image Non- Sample Color Data namely green data and blue data in the three primary colours data of original pixels [i, j] be respectively G0 [i, J] and B0 [i, j]；For purposes of illustration only, the center sub-pix red data on the left of Fig. 4 a in nine grids is labeled as R0, three sub- pictures Plain green data is respectively labeled as G1, G2, G3 and three sub-pix blue datas and is respectively labeled as B1, B2, B3, after label As a result as shown in the right side Fig. 4 a.Then：

(4a) judges whether to need complementary color

(4b) determines complementary color position

(4c) determines complementary color value size (namely sub-pix color data values size or updated value after complementary color processing)

(i) work as G, B component is required to complementary color

Then complementary color value size is：

R [i, j]=(R0 [i, j]+R0 [a]+R0 [b])/3

G [a]=(G0 [i, j]+G0 [a]+G0 [b])/3

B [b]=(B0 [i, j]+B0 [a]+B0 [b])/3

Then complementary color value size is：

R [i, j]=(R0 [i, j]+R0 [a])/2

G [a]=(G0 [i, j]+G0 [a])/2

Then complementary color value size is：

R [i, j]=(R0 [i, j]+R0 [b])/2

B [b]=(B0 [i, j]+B0 [b])/2

(5) complementary color processing is carried out to even number line sub-pix green data G [i, j] in Fig. 3：Mark off one comprising G1 and with Nine grids block of pixels shown on the left of the block of pixels of its at least one adjacent R and at least one B, such as Fig. 5 b, if sub-pix The initial value of green data G [i, j] is G0 [i, j] and sets with sub-pix green data G [i, j] in corresponding original image Non- Sample Color Data namely red data and blue data in the three primary colours data of original pixels [i, j] be respectively R0 [i, J] and B0 [i, j]；For purposes of illustration only, the center sub-pix green data on the left of Fig. 4 b in nine grids is labeled as G0, three sub- pictures Plain red data is labeled as R1, R2, and R3, three sub-pix blue datas are respectively labeled as B1, B2, B3, and the result after label is such as Shown on the right side of Fig. 4 b.Then：

(5a) judges whether to need complementary color

(5b) determines complementary color position

(5c) determines complementary color value size (namely sub-pix color data values size or updated value after complementary color processing)

(i) work as R, B component is required to complementary color

Then complementary color value size is：

G [i, j]=(G0 [i, j]+G0 [a]+G0 [b])/3

R [a]=(R0 [i, j]+R0 [a]+R0 [b])/3

B [b]=(B0 [i, j]+B0 [a]+B0 [b])/3

Then complementary color value size is：

G [i, j]=(G0 [i, j]+G0 [a])/2

R [a]=(R0 [i, j]+R0 [a])/2

Then complementary color value size is：

G [i, j]=(G0 [i, j]+G0 [b])/2

B [b]=(B0 [i, j]+B0 [b])/2

(6) complementary color processing is carried out to even number line sub-pix blue data B [i, j] in Fig. 3：Mark off one comprising B and with Nine grids block of pixels shown on the left of the block of pixels of its at least one adjacent R and at least one G, such as Fig. 4 c, if sub-pix The initial value of blue data B [i, j] is B0 [i, j] and sets with sub-pix blue data B [i, j] in corresponding original image Non- Sample Color Data namely red data and green data in the three primary colours data of original pixels [i, j] be respectively R0 [i, J] and G0 [i, j]；For purposes of illustration only, the center sub-pix blue data on the left of Fig. 4 c in nine grids is labeled as B0, three sub- pictures Plain green data is respectively labeled as G1, G2, G3 and three sub-pix red datas and is respectively labeled as R1, R2, R3, after label Result on the right side of Fig. 4 c shown in.Then：

(6a) judges whether to need complementary color

(6b) determines complementary color position

(6c) determines complementary color value size (namely sub-pix color data values size or updated value after complementary color processing)

(i) work as R, G component is required to complementary color

Then complementary color value size is：

B [i, j]=(B0 [i, j]+B0 [a]+B0 [b])/3

R [a]=(R0 [i, j]+R0 [a]+R0 [b])/3

G [b]=(G0 [i, j]+G0 [a]+G0 [b])/3

Then complementary color value size is：

B [i, j]=(B0 [i, j]+B0 [a])/2

R [a]=(R0 [i, j]+R0 [a])/2

Then complementary color value size is：

B [i, j]=(B0 [i, j]+B0 [b])/2

G [b]=(G0 [i, j]+G0 [b])/2

Above-mentioned B0 [a] is not sample blue data, R0 in the three primary colours data of the original pixels of the position a in original image [a] is the initial value of the sub-pix red data of the position a, the three primary colours number that G0 [a] is the original pixels of the position a in original image Green data is not sampled in, and B0 [b] is not sample indigo plant in the three primary colours data of the original pixels of the position b in original image Chromatic number according to, R0 [b] be in the three primary colours data of the original pixels of the position b in original image do not sample red data, G0 [b] is The initial value of the sub-pix green data of the position b.

Pass through " red-green-blue " in each pixel (each LED display unit) P to LED display unit array Three sub-pixes carry out the data obtained after above-mentioned complementary color processing can with reference to Fig. 3, only compared to Fig. 3 for, each Asia picture Plain color data values are complementary color treated updated value；Later, the corresponding sub-pix of three sub-pixes in each pixel P is exported Color data is addressed to show.Referring to Figure 1 and Fig. 3, the addressing display methods are：For the LED display unit in Fig. 1 For tri- color LED of RGB in P1, then first sub-pix red number of the first row in Fig. 3 (odd-numbered line) can be utilized respectively According to (R), first sub-pix green data (G) and the second row (even number line) first sub-pix blue data (B) respectively into Row driving；For tri- color LED of BRG in the LED display unit P2 in Fig. 1, then the first row in Fig. 3 can be utilized respectively First sub-pix blue data (B) of (odd-numbered line) and first sub-pix red data (R) of the second row (even number line), One sub-pix green data (G) is driven respectively；The driving and so on of other each LED display units, herein no longer It enumerates.

In addition, it is noted that above-mentioned complementary color processing scheme is illustrated as an example using nine grids block of pixels, And nine grids block of pixels (3 × 3 block of pixels) is by the center sub-pix color as complementary color processing target sub-pix color data Data and it is adjacent thereto around eight sub-pix color data composition, in which case, then to the Central Asia Fig. 3 pixel color number According to the first row, first row, last line, last column without complementary color processing；Namely the first row in Fig. 3, first row, most A line, last sub-pix color data (that is, edge sub-pixel color data) arranged are not as complementary color processing target afterwards Sub-pix color data.It is of course also possible to use 2 × 2 block of pixels (including complementary color processing target sub-pix color data and and its Adjacent three sub-pix color data comprising other two kinds of color types) or triangular pixel block (including complementary color handles mesh Mark two sub-pix color data of sub-pix color data and other two kinds of color types adjacent thereto) it carries out at complementary color Reason, and in this case, then complementary color processing can be carried out to edge sub-pixel color data.In addition, it is noted that In the present embodiment, in Fig. 3 each sub-pix color data carry out complementary color processing, though edge sub-pixel color data whether Complementary color processing is done, final data value all will be referred to as sub-pix color data after complementary color processing.

In addition, carrying out the mistake of complementary color processing according to sub-pix color data (RGB) various after the aforementioned sampling in Fig. 3 Journey, the LED display methods based on sub-pix down-sampling of the embodiment of the present invention can be summarized as including step shown in fig. 6.Specifically The LED display methods based on sub-pix down-sampling on ground, the present embodiment includes：Original image is received, original image is carried out sub- Pixel down-sampling, the sub-pix color data obtained to sub-pix down-sampling carry out complementary color processing, and after being handled according to complementary color Sub-pix color data perform image display.It wherein, further include to original before carrying out sub-pix down-sampling to original image Beginning image carries out Gamma transformation, and anti-Gamma transformation is correspondingly carried out before performing image display.More specifically, to any one A target sub-pix color data, which carries out complementary color processing, to be marked off comprising the target sub-pix color data and adjacent thereto Multiple sub-pix color data block of pixels, be then based in the block of pixels each sub-pix color data to be processed ( I.e. target sub-pix color data and with its be different colours type sub-pix color data) and with each sub-pix to be processed Non- Sample Color Data in the three primary colours data of the corresponding multiple original images of color data judges whether to need complementary color And complementary color position and complementary color value size are determined when needing complementary color, detail can refer to aforementioned sub-pix red data (R), (method that G and sub-pix blue data (B) carry out complementary color processing, details are not described herein for sub-pix green data.And in block of pixels The sub-pix color data in addition to sub-pix color data to be processed be then with target sub-pix color data be same face Color type wouldn't be processed when carrying out complementary color processing to the target sub-pix color data in this block of pixels.

Fig. 7 is referred to, is a kind of module of display control unit based on sub-pix down-sampling of the embodiment of the present invention Schematic diagram.As shown in fig. 7, display control unit 70 includes：Sub-pix downsampling unit 71, the processing of sub-pix color data complementary color Unit 73 and display driver element 75.Sub-pix downsampling unit 71 is used for three of each pixel in the original image of input Primary colours color data carries out down-sampling to obtain sub-pix color data；Sub-pix color data complementary color processing unit 73 for pair Each sub-pix color data carries out complementary color processing to obtain sub-pix color data after complementary color processing；Display driver element 75 is used Sub-pix color data drive control display panel 100 performs image display after being handled according to the complementary color, wherein display surface Plate 100 is in three in the aforesaid plurality of LED display unit P and each LED display unit P to be arranged with array manner for example including including The first color physics sub-pix (such as red LED), the second color physics sub-pix (such as green LED) and of triangular arrangement Three color physics sub-pixes (such as blue led), certain display panel 100 also may include other similar display unit without It is limited to LED display unit.

More specifically, sub-pix downsampling unit 71 for example for obtaining in original image per 3 adjacent pixels respectively A corresponding color data is obtained to obtain three sub-pix color data of a red-green-blue.

Sub-pix color data complementary color processing unit 73 carries out at complementary color to any one target sub-pix color data When reason, mark off comprising the target sub-pix color data and multiple sub- pictures comprising other two kinds of color types adjacent thereto The block of pixels of plain color data, multiple sub-pix color data to be processed (namely the target Asia picture being then based in the block of pixels Plain color data and with its be different colours type sub-pix color data) and with the multiple sub-pix number of colours to be processed According to the non-Sample Color Data in the three primary colours data of corresponding multiple original images judge whether to need complementary color and Need to determine complementary color position and complementary color value size when complementary color, detail can refer to aforementioned sub-pix red data (R), sub-pix (method that G and sub-pix blue data (B) carry out complementary color processing, details are not described herein for green data.

The sub-pix after obtaining complementary color processing by sub-pix color data complementary color processing unit 73 of display driver element 75 After color data, three physics sub-pixes (red-green-blue) in each pixel of final output (display unit) are respectively corresponded Complementary color processing after sub-pix color data to display panel 100 be addressed to show；Referring to Figure 1 and Fig. 3, the addressing are aobvious Showing method can be：Such as tri- color LED of RGB (namely three color physics in the LED display unit P1 in Fig. 1 Sub-pix) for, then it can be utilized respectively first sub-pix red data (R) of the first row in Fig. 3 (odd-numbered line), first Asia First sub-pix blue data (B) of pixel green data (G) and the second row (even number line) is driven respectively；For Fig. 1 In LED display unit P2 in tri- color LED of BRG for, then can be utilized respectively the first of the first row in Fig. 3 (odd-numbered line) A sub-pix blue data (B) and first sub-pix red data (R) of the second row (even number line), first sub-pix green Data (G) are driven respectively；The driving and so on of other each LED display units, will not enumerate herein.

In conclusion the above embodiment of the present invention is directed to physics sub-pix (such as LED) layout type of honeycomb arrangement, and It performs image display, therefore can effectively mention in conjunction with sub-pix down-sampling technology and sub-pix color data complementary color Processing Algorithm It rises brightness of display screen resolution ratio and traditional sub-pix down-sampling can be eliminated in the case where not influencing picture clarity and cause Color mistake.

Specific case used herein is to the present invention is based on the LED display methods of sub-pix down-sampling, LED display unit The principle and embodiment of array and the display control unit based on sub-pix down-sampling is expounded, above embodiments Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to According to thought of the invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification Appearance should not be construed as limiting the invention, and protection scope of the present invention should be subject to the attached claims.

Claims

1. a kind of LED display methods based on sub-pix down-sampling, is suitable for the application of in a kind of LED display unit array, the LED Array of display cells includes multiple LED display units；It is characterized in that, each described LED display unit includes triangular in shape A first color LED, a second color LED and a third color LED for arrangement；The LED display methods includes step Suddenly：

(S1) original image for receiving input, wherein the original image includes corresponding with multiple original pixels multiple three Primary colours data；

(S2) sub-pix down-sampling is carried out to obtain corresponding to the multiple of each LED display unit to the original image Sub-pix color data；

(S3) complementary color is carried out to the multiple sub-pix color data of the multiple LED display unit to handle to obtain each Sub-pix color data after multiple complementary colors processing of the LED display unit；And

(S4) sub-pix color data respectively drives phase after being handled according to the multiple complementary color of LED display unit described in each It is in the first color LED, the second color LED and the third color LED of triangle arrangement in corresponding LED display unit It performs image display.

2. LED display methods as described in claim 1, which is characterized in that the step (S2) includes：

Sample one in each of every three adjacent original pixels of original image three primary colours data of original pixels A color data, to obtain and the first color LED, the second color LED in corresponding LED display unit and described Third color LED distinguishes corresponding three sub-pix color data.

3. LED display methods as described in claim 1, which is characterized in that the step (S3) includes：

When carrying out complementary color processing to target sub-pix color data, mark off comprising the target sub-pix color data and The block of pixels of the multiple sub-pix color data adjacent with the target sub-pix color data and based in the block of pixels Multiple sub-pix color data to be processed and multiple original images corresponding with the multiple sub-pix color data to be processed Non- Sample Color Data in the three primary colours data of element judges whether to need to carry out complementary color and determine when needing to carry out complementary color Complementary color position and complementary color value size, wherein the multiple sub-pix color data to be processed includes the target sub-pix number of colours According to with the target sub-pix color data be different colours type sub-pix color data.

4. LED display methods as claimed in claim 3, which is characterized in that judge whether to need the method for carrying out complementary color include：

Judge the first non-sample color number in the three primary colours data of the corresponding original pixels of the target sub-pix color data According to whether be greater than in the block of pixels it is all with the described first non-Sample Color Data be same color type sub-pix colors Data, and determination needs to carry out the first component complementary color when judging result is "Yes"；And

Judge the second non-sample color number in the three primary colours data of the corresponding original pixels of the target sub-pix color data According to whether be greater than in the block of pixels it is all with the described second non-Sample Color Data be same color type sub-pix colors Data, and determination needs to carry out second component complementary color when judging result is "Yes".

5. LED display methods as claimed in claim 4, which is characterized in that the method for determining complementary color position includes：

When determination needs to carry out the first component complementary color, all in the block of pixels and the described first non-Sample Color Data is found out It is determined for the maximum value in the sub-pix color data of same color type and by the corresponding first position of the maximum value For the first component complementary color position；And

When determination needs to carry out second component complementary color, all in the block of pixels and the described second non-Sample Color Data is found out It is determined for the maximum value in the sub-pix color data of same color type and by the corresponding second position of the maximum value For second component complementary color position.

6. LED display methods as claimed in claim 5, which is characterized in that the method for determining complementary color value size includes：

(i) when determination needs to carry out the first component and second component complementary color,

By the target sub-pix color data, the three primary colours data of the corresponding original pixels in first and second described position In with the target sub-pix color data be same color type two non-Sample Color Data threes average value make For the updated value of the target sub-pix color data,

By the corresponding sub-pix color data in the first position, the target sub-pix color data corresponding original pixels Sub-pix color data corresponding with the first position in three primary colours data is the non-sample color number of same color type According to the sub-pix number of colours corresponding with the first position in the three primary colours data of, corresponding original pixels in the second position According to the average value of the non-Sample Color Data three for same color type as the corresponding sub-pix color in the first position The updated value of data,

By the corresponding sub-pix color data in the second position, the target sub-pix color data corresponding original pixels Sub-pix color data corresponding with the second position in three primary colours data is the non-sample color number of same color type According to the sub-pix number of colours corresponding with the second position in the three primary colours data of, corresponding original pixels in the first position According to the average value of the non-Sample Color Data three for same color type as the corresponding sub-pix color in the second position The updated value of data；

(ii) when determination needs to carry out the first component without carrying out second component complementary color,

By in the target sub-pix color data, the three primary colours data of the corresponding original pixels in the first position with it is described Target sub-pix color data is the average value of both non-Sample Color Datas of same color type as target Asia picture The updated value of plain color data,

By the corresponding sub-pix color data in the first position, the target sub-pix color data corresponding original pixels Sub-pix color data corresponding with the first position in three primary colours data is the non-sample color number of same color type Updated value according to the average value of the two as the corresponding sub-pix color data in the first position；

(iii) when determination needs to carry out second component without carrying out the first component complementary color,

By in the target sub-pix color data, the three primary colours data of the corresponding original pixels in the second position with it is described Target sub-pix color data is the average value of both non-Sample Color Datas of same color type as target Asia picture The updated value of plain color data,

By the corresponding sub-pix color data in the second position, the target sub-pix color data corresponding original pixels Sub-pix color data corresponding with the second position in three primary colours data is the non-sample color number of same color type Updated value according to the average value of the two as the corresponding sub-pix color data in the second position.

7. LED display methods as claimed in claim 3, which is characterized in that the block of pixels is with the target sub-pix face The nine grids block of pixels of color data grid technology, and the target sub-pix color data is non-edge sub-pix color data.

8. LED display methods as described in claim 1, which is characterized in that the step (S4) includes：When driving is disposed adjacent First LED display unit (P1) and when the second LED display unit (P2),

Sub-pix color data (R) and one after being handled using the complementary color for being located at first color type adjacent in an odd-numbered line Sub-pix color data (G) and positioned at an even number line adjacent with the odd-numbered line after the complementary color processing of a second color type In a third color type complementary color processing after sub-pix color data (B) respectively drive first LED display unit (P1) each color LED in, and

Using sub-pix color data (B) after the complementary color processing for a third color type being located in the odd-numbered line and it is located at Sub-pix color data (R) and second color after the complementary color of adjacent first color type is handled in the even number line Sub-pix color data (G) respectively drives each color in second LED display unit (P2) after the complementary color processing of type LED。

9. a kind of display control unit based on sub-pix sampling performs image display, the display suitable for driving display panel Panel includes the multiple display units arranged with array manner；It is characterized in that, each described display unit includes being in triangle A first color physics sub-pix, a second color physics sub-pix and a third color physics Asia picture for shape arrangement Element；The display control unit includes：

Sub-pix downsampling unit, for carrying out sub-pix down-sampling to the original image of input to obtain corresponding to each institute Multiple sub-pix color data of display unit are stated, wherein the original image includes corresponding with multiple original pixels more A three primary colours data；

Sub-pix color data complementary color processing unit, for the multiple sub-pix color data to the multiple display unit Complementary color processing is carried out to obtain sub-pix color data after multiple complementary colors processing of each display unit；

Display driver element, for sub-pix color data after being handled according to the multiple complementary color of display unit described in each It respectively drives sub- in the first color physics sub-pix of triangle arrangement, the second color physics in corresponding display unit Pixel and the third color physics sub-pix perform image display.

10. display control unit as claimed in claim 9, which is characterized in that the sub-pix downsampling unit is specifically used for：

Sample one in each of every three adjacent original pixels of original image three primary colours data of original pixels A color data, with the first color physics sub-pix, described for obtaining with being triangularly arranged in corresponding display unit Second color physics sub-pix and the third color physics sub-pix distinguish corresponding three sub-pix color data.

11. display control unit as claimed in claim 9, which is characterized in that the sub-pix color data complementary color processing is single Member is specifically used for：

12. display control unit as claimed in claim 11, which is characterized in that the sub-pix color data complementary color processing is single What member used judges whether to need the method for carrying out complementary color to include：

13. display control unit as claimed in claim 12, which is characterized in that the sub-pix color data complementary color processing is single The method of determination complementary color position that member uses includes：

14. display control unit as claimed in claim 13, which is characterized in that the sub-pix color data complementary color processing is single The method of determination complementary color value size that member uses includes：

15. display control unit as claimed in claim 9, which is characterized in that the display driver element is specifically used for：

When first display unit (P1) and the second display unit (P2) that driving is disposed adjacent,

Sub-pix color data (R) and one after being handled using the complementary color for being located at first color type adjacent in an odd-numbered line Sub-pix color data (G) and positioned at an even number line adjacent with the odd-numbered line after the complementary color processing of a second color type In a third color type complementary color processing after sub-pix color data (B) respectively drive first display unit (P1) In each color physics sub-pix, and

Using sub-pix color data (B) after the complementary color processing for a third color type being located in the odd-numbered line and it is located at Sub-pix color data (R) and second color after the complementary color of adjacent first color type is handled in the even number line Sub-pix color data (G) respectively drives each color physics in second display unit (P2) after the complementary color processing of type Sub-pix.