CN108511480A - Dot structure and OLED display - Google Patents

Dot structure and OLED display Download PDF

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Publication number
CN108511480A
CN108511480A CN201710774606.4A CN201710774606A CN108511480A CN 108511480 A CN108511480 A CN 108511480A CN 201710774606 A CN201710774606 A CN 201710774606A CN 108511480 A CN108511480 A CN 108511480A
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China
Prior art keywords
pixel
sub
unit
dot structure
pixels
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CN201710774606.4A
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Inventor
刘明星
李俊峰
高峰
吕东芸
王徐亮
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Kunshan Govisionox Optoelectronics Co Ltd
Kunshan Guoxian Photoelectric Co Ltd
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Kunshan Guoxian Photoelectric Co Ltd
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Application filed by Kunshan Guoxian Photoelectric Co Ltd filed Critical Kunshan Guoxian Photoelectric Co Ltd
Priority to CN201710774606.4A priority Critical patent/CN108511480A/en
Priority to PCT/CN2018/098354 priority patent/WO2019042072A1/en
Priority to US16/324,992 priority patent/US11152432B1/en
Priority to JP2019563815A priority patent/JP7015324B2/en
Priority to KR1020197032742A priority patent/KR102466271B1/en
Priority to EP18849577.4A priority patent/EP3678182A4/en
Priority to TW107127659A priority patent/TW201909411A/en
Publication of CN108511480A publication Critical patent/CN108511480A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The present invention provides a kind of dot structure and OLED displays.The dot structure includes the multiple repetitive units arranged in the matrix form, and each repetitive unit includes two sub- repetitive units that are being disposed adjacent along first direction and respectively including three different sub-pixels of color；Two sub- repetitive units constitute two pixel units being disposed adjacent in a second direction, and the sub-pixel of arbitrary same color is in 2 times or 2N/ (N+1) times that the centre distance of second direction is its centre distance in a first direction；Alternatively, two sub- repetitive units constitute two pixel units being disposed adjacent along first direction, the centre distance of the sub-pixel of arbitrary same color in a first direction is it at 2N/ (N+1) times of the centre distance of second direction.In this way, the pixel unit in the dot structure in a direction can be equivalent to (N+1)/N times of pixel unit in Real dot structures, and then improve the virtual resolution of display device.

Description

Dot structure and OLED display
Technical field
The present invention relates to display technology field, more particularly to a kind of dot structure and the OLED for including the dot structure Display device.
Background technology
OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) is active luminescent device.With biography LCD (Liquid Crystal Display, liquid crystal display) display mode of system is compared, and OLED display technologies are not necessarily to backlight, With self luminous characteristic.OLED use relatively thin organic material film laye and glass substrate, when have electric current by when, organic material It will shine.Therefore OLED display screen can save significantly on electric energy, can be made lighter and thinner, be resistant to than LCD display wider The temperature change of range, and visible angle bigger.OLED display screen is expected to become the next-generation FPD skill after LCD Art is most one of technology that attracts attention in current flat panel display.
There are many kind, the present more mature and volume production that succeeded OLED colorization skills for the colorization method of OLED screen body Art is mainly OLED evaporation coating techniques, and traditional RGB Stripe (RGB stripe shape) arrangement mode is used to be deposited.Wherein picture The mode of effect most preferably side-by-side (juxtaposition).Side-by-side modes are in pixel (Pixel) range Inside there are three sub-pixels (sub-pixel) of red, green, blue (R, G, B), each sub-pixel is in quadrangle, and is respectively had independent Organic light emission component, it be using evaporation film-forming technology through fine metal mask version (Fine Metal Mask, FMM) corresponding location of pixels forms organic light emitting component, the fine metal mask version on array (array) substrate Often referred to simply as metal mask version or vapor deposition mask plate.Make high PPI (Pixel Per Inch, the pixel that per inch is possessed Number) the technology of OLED display screen focus on the arrangement of fine and good mechanical stability FMM and pixel (sub-pixel) Mode.
Fig. 1 a are a kind of pixel arrangement schematic diagram of OLED display.As shown in Figure 1a, which uses The juxtaposed mode of pixel, each pixel unit Pixel include R subpixel areas 101, G sub-pixel region 103 and B sub-pixels Region 105, wherein R subpixel areas 101 include the luminous zones R 102 and the non-light-emitting areas R (not labeled), G sub-pixel region 103 Including the luminous zones G 104 and the non-light-emitting areas G (not labeled), B subpixel areas 105 include the luminous zones B 106 and the non-light-emitting areas B (not labeled).R, G, B sub-pixel shown in Fig. 1 a and luminous zone area difference are equal, and R, G, B sub-pixel are arranged in a linear. Dot structure in this is usually referred to as Real dot structures (Real RGB) by industry.Specifically, in each subpixel area Luminous zone in, including cathode, anode and electroluminescence layer, wherein electroluminescence layer is between cathode and anode, for producing Raw predetermined color light is to realize display.When preparing the display screen, it usually needs using evaporation process with respectively in corresponding face The electroluminescence layer of corresponding color (red, green or blue) is formed in the luminous zone in color pixel region.
FMM is deposited shown in OLED display generally use Fig. 1 b shown in Fig. 1 a, this kind of FMM includes blocked area 107 and several vapor deposition openings 108, the blocked areas between adjacent two vapor deposition openings 108 of same row are referred to as connecting bridge (bridge).In order to avoid vapor deposition when to sub-pixel generate shadowing effect, must be kept between sub-pixel and bridge it is enough away from From this results in the length reduction of sub-pixel or more, and affects the aperture opening ratio of each sub-pixel.Traditional RGB juxtaposition pictures Plain arrangement mode only up to reach 200~300PPI, it is difficult to realize high-resolution display effect.As user is to OLED The demand of display device resolution ratio is higher and higher, and the design that this juxtaposed mode of rgb pixel has been unable to meet the high PPI of product is wanted It asks.
Fig. 2 is the pixel arrangement schematic diagram of another OLED display.As shown in Fig. 2, each pixel unit only has G Pixel is private, R and B sub-pixels are shared with adjacent pixel unit, for example, pixel unit 201 and pixel unit 202 Share R sub-pixels.This mode can improve the PPI of display screen, however, R and B sub-pixels are by adjacent in this arrangement mode What pixel unit shared, there may be distortion for entire display effect, are not full-color displays truly.
Invention content
The purpose of the present invention is to provide a kind of dot structure and include the OLED display of the dot structure, with solution Certainly problems of the prior art.
In order to solve the above technical problems, the present invention provides a kind of dot structure, including arrange in the matrix form multiple heavy Multiple unit, each repetitive unit are disposed adjacent along first direction and respectively include three different sub-pixels of color Two sub- repetitive units；A sub- repetitive unit in each repetitive unit includes be arranged in order in a second direction One sub-pixel, the second sub-pixel and third sub-pixel or the second sub-pixel, the first sub-pixel and third sub-pixel, another height weight Multiple unit includes third sub-pixel, the first sub-pixel and the second sub-pixel being arranged in order along the second direction or third sub- picture Element, the second sub-pixel and the first sub-pixel.Since the third sub-pixel of two sub- repetitive units in each repetitive unit is mutual Be staggered arrangement, identical in process conditions, using the structure of the sub-pixel dislocation arrangement of this adjacent rows, expands each Utilizable distance between the opening of identical sub-pixel, can reduce mask plate manufacture craft and the difficulty of evaporation process, to The smaller that the size of pixel unit can be done, is advantageously implemented the manufacture of sharpness screen.
In the dot structure, what two sub- repetitive units compositions in each repetitive unit were disposed adjacent in a second direction Two pixel units, the sub-pixel of arbitrary same color are its centre distance in a first direction in the centre distance of second direction 2 times or 2N/ (N+1) times；Alternatively, described two sub- repetitive units constitute two pixel lists being disposed adjacent along first direction Member, the centre distance of the sub-pixel of arbitrary same color in a first direction is its 2N/ (N+1) in the centre distance of second direction Times.In this way, (N+1) that the pixel unit in the dot structure in a direction can be equivalent in Real dot structures/N times Pixel unit, and then improve the virtual resolution of display device.
Description of the drawings
Fig. 1 a are a kind of pixel arrangement schematic diagram of OLED display in the prior art.
The schematic diagram of FMM of Fig. 1 b corresponding diagrams 1a a kind of.
Fig. 2 is the pixel arrangement schematic diagram of another OLED display in the prior art.
Fig. 3 is a kind of pixel arrangement schematic diagram of OLED display in the embodiment of the present invention.
Fig. 4 is the schematic diagram of a repetitive unit in Fig. 3.
Fig. 5 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.
Fig. 6 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.
Fig. 7 is the schematic diagram of a repetitive unit in Fig. 6.
Fig. 8 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.
Fig. 9 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.
Figure 10 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.
Figure 11 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.
Figure 12 is the schematic diagram of a repetitive unit in Figure 11.
Figure 13 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.
Figure 14 is the schematic diagram of a repetitive unit in Figure 13.
Figure 15 is a kind of equivalent schematic in the embodiment of the present invention.
Figure 16 is the schematic diagram that benchmark pixel unit connects grid line and data line in the embodiment of the present invention.
Figure 17 is a kind of schematic diagram of pixel unit connection grid line and data line in the embodiment of the present invention.
Figure 18 is the schematic diagram that another pixel unit connects grid line and data line in the embodiment of the present invention.
Figure 19 is another equivalent schematic in the embodiment of the present invention.
Figure 20 is another equivalent schematic in one embodiment of the invention.
Figure 21 is another equivalent schematic in one embodiment of the invention.
Figure 22 is the schematic diagram of display device in one embodiment of the invention.
Figure 23 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.
Figure 24 is the schematic diagram of a repetitive unit in Figure 23.
Figure 25 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.
Figure 26 is the schematic diagram of a repetitive unit in Figure 25.
Specific implementation mode
Present inventor is the study found that traditional rgb pixel arrangement mode cannot meet the opening of product simultaneously The requirement of rate and display effect.It is therefore proposed a kind of dot structure of OLED display, including arrange in the matrix form more A repetitive unit, each repetitive unit are disposed adjacent along first direction and respectively include three different sons of color Two sub- repetitive units of pixel, wherein a sub- repetitive unit includes the first sub-pixel being arranged in order in a second direction, Two sub-pixels and third sub-pixel or the second sub-pixel, the first sub-pixel and third sub-pixel, another sub- repetitive unit include Third sub-pixel, the first sub-pixel and the second sub-pixel or third sub-pixel, the second son being arranged in order along the second direction Pixel and the first sub-pixel.
Described two sub- repetitive units constitute two pixel units being disposed adjacent in a second direction, therefore, each pixel list Member includes mutually different first sub-pixel of color, the second sub-pixel and third sub-pixel, and the virtual center of three sub-pixels connects Line is triangular in shape.Alternatively, described two sub- repetitive units constitute two pixel units being disposed adjacent along first direction, therefore, often A pixel unit includes mutually different first sub-pixel of color, the second sub-pixel and third sub-pixel, and two pixel units are each From being square.
In the dot structure, the third sub-pixel of two sub- repetitive units in each repetitive unit mutually staggers row Cloth, it is identical in process conditions, using the structure of this sub-pixel dislocation arrangement, expand opening for each identical sub-pixel Utilizable distance between mouthful, can reduce mask plate manufacture craft and the difficulty of evaporation process, so as to by pixel unit The smaller done of size, be advantageously implemented the manufacture of sharpness screen.Meanwhile each pixel unit in the dot structure (pixel) it is made of three kinds of colors (tri- colors of RGB), total colouring truly may be implemented.Also, the dot structure Arrangement is there are three types of color sub-pixels on middle row (row), and there are two types of color sub-pixels for arrangement in row (column), compared in a direction A kind of sub-pixel of color is only distributed with, this arrangement mode row, column direction shows more uniform.
Two sub- repetitive units are, for example, the first sub- repetitive unit and the second sub- repetitive unit in each repetitive unit, described When first sub- repetitive unit and the second sub- repetitive unit constitute two pixel units being disposed adjacent in a second direction, each pixel The virtual center line of the first sub-pixel, the second sub-pixel and third sub-pixel is e.g. in triangle as follows in unit Shape：
1) first direction is line direction, and second direction is column direction, correspondingly, the first sub-pixel in each pixel unit With the second pixel arrangement in first row, third pixel arrangement in the secondary series adjacent with the first row.Can be specifically, Described first is classified as odd column (the 1st, 3,5 ... row), and corresponding described second is classified as even column (the 2nd, 4,6 ... row)；It can also It is that described first is classified as even column, corresponding described second is classified as odd column, and particular determination is not done to it at this.
2) first direction is column direction, and second direction is line direction, correspondingly, the first sub-pixel in each pixel unit With the second pixel arrangement in the first row, third pixel arrangement in second row adjacent with the first row.Can be specifically, Described first is classified as odd column (the 1st, 3,5 ... row), and corresponding described second is classified as even column (the 2nd, 4,6 ... row)；It can also It is that described first is classified as even column, corresponding described second is classified as odd column, and particular determination is not done to it at this.
When described two sub- repetitive units constitute two pixel units being disposed adjacent in a second direction, in the pixel knot In structure, the sub-pixel of arbitrary same color (is such as gone in the centre distance Y1 of second direction (such as column direction) with it in a first direction Direction) centre distance X1 may exist following relationship：
1) each repetitive unit includes 2 pixel units in column direction, meanwhile, make the M on the dot structure line direction A pixel unit realizes the display effect of M* (N+1)/N number of pixel unit in Real dot structures, to improve virtual resolution, institute With,
Y1/ 2=N/ (N+1) X1；
That is, Y1=2N/ (N+1) X1；
Wherein, N is the integer more than or equal to 1.
That is, the sub-pixel of arbitrary same color the centre distance Y1 of second direction be its in a first direction in The 2N/ (N+1) of heart distance X1 times.
2) each repetitive unit includes 2 pixel units in column direction, meanwhile, keep M pixel unit on line direction real The display effect (without compression) of M pixel unit in existing Real dot structures, so,
Y1/ 2=X1；
That is, Y1=2X1；
That is, the sub-pixel of arbitrary same color the centre distance Y1 of second direction be its in a first direction in 2 times of heart distance X1.
Two sub- repetitive units are, for example, the first sub- repetitive unit and the second sub- repetitive unit in each repetitive unit, described When first sub- repetitive unit and the second sub- repetitive unit are constituted along two pixel units that first direction is disposed adjacent, each pixel In unit, the virtual center line of the first sub-pixel, the second sub-pixel and third sub-pixel is e.g. in side as follows Shape is arranged：
1) first direction is line direction, and second direction is column direction, correspondingly, the first sub- picture in first pixel unit Element, the first sub-pixel, the second sub-pixel of the second sub-pixel and third pixel arrangement in first row, second pixel unit With third pixel arrangement in secondary series.Can be specifically that described first is classified as odd column (the 1st, 3,5 ... row), corresponding institute It states second and is classified as even column (the 2nd, 4,6 ... row)；Can also be that described first is classified as even column, corresponding described second is classified as Odd column does not do particular determination at this to it.
2) first direction is column direction, and second direction is line direction, correspondingly, the first sub- picture in first pixel unit Element, the first sub-pixel, the second sub-pixel of the second sub-pixel and third pixel arrangement in the first row, second pixel unit With third pixel arrangement in the second row.Can be specifically that described first is classified as odd column (the 1st, 3,5 ... row), corresponding institute It states second and is classified as even column (the 2nd, 4,6 ... row)；Can also be that described first is classified as even column, corresponding described second is classified as Odd column does not do particular determination at this to it.
When described two sub- repetitive units constitute two pixel units being disposed adjacent in a second direction, in the pixel knot In structure, the sub-pixel of arbitrary same color (is such as gone in the centre distance Y1 of second direction (such as column direction) with it in a first direction Direction) centre distance X1 may exist following relationship：
2 pixel units are distributed into line direction in each repetitive unit, meanwhile, make M pixel unit on column direction Realize the display effect of M* (N+1)/N number of pixel unit in Real dot structures, so,
X1/ 2=N/ (N+1) Y1；
That is, X1=2N/ (N+1) Y1；
Wherein, N is the integer more than or equal to 1.
That is, arbitrarily the centre distance X1 of the sub-pixel of same color in a first direction is it in second direction The 2N/ (N+1) of heart distance Y1 times.
The dot structure and its driving method of the present invention are described in more detail below in conjunction with attached drawing.
Fig. 3 is a kind of pixel arrangement schematic diagram of OLED display in the embodiment of the present invention, and Fig. 4 is a weight in Fig. 3 The schematic diagram of multiple unit.
Wherein, first direction (X-direction) is line direction (transverse direction), and second direction (Y-direction) is column direction (longitudinal direction).For letter Just, a part for OLED display is only indicated in attached drawing, pixel quantity is without being limited thereto in actual product, pixel unit Quantity can need to make corresponding variation according to actual displayed.Heretofore described the first row, the second row, first row, second Row ... are to illustrate the invention and as shown in the figure for reference standard, to be not necessarily referring to the row and column in actual product.
As shown in Figure 3 and Figure 4, the dot structure includes the multiple repetitive units 30, Mei Yisuo arranged in the matrix form Repetitive unit 30 is stated to be disposed adjacent (referred to herein as X-direction) along first direction and respectively include three different sons of color First sub- repetitive unit 31 of pixel and the second sub- repetitive unit 32.The first sub- repetitive unit 31 includes in a second direction The first sub-pixel 301, the second sub-pixel 303 and the third sub-pixel 305 that (referred to herein as Y-direction) is arranged in order.Described second Sub- repetitive unit 32 includes third sub-pixel 305, the first sub-pixel 301 and the second sub- picture being arranged in order along the second direction Element 303.The first sub- repetitive unit 31 and the second sub- repetitive unit 32 in each repetitive unit 30 constitute adjacent in a second direction Two pixel units being arranged, thus, each pixel unit includes that color is different and virtual center line is triangular in shape First sub-pixel 301, the second sub-pixel 303 and third sub-pixel 305 (as shown in the triangle dotted line frame in Fig. 4), each picture Plain unit is by tri- colour cells of RGB at total colouring truly may be implemented.
Preferably, it is identical with the arrangement of all pixels unit in a line, also, each pixel unit is turned over along line direction Arrangement after turnback (itself left and right overturning) is identical as the arrangement of pixel unit adjacent in same row.So One, pixel unit greater compactness of can arrange, and reduce pel spacing, improve PPI.
Here, the pixel unit of the first row first row is denoted as pixel unit (1,1), the pixel unit of the first row secondary series It is denoted as pixel unit (1,2), the pixel unit of the second row first row is denoted as pixel unit (2,1), the pixel of the second row secondary series Unit is denoted as pixel unit (2,2), and so on.As shown in figure 3, the pixel unit (1,1) of the first row first row overturns 180 degree Arrangement afterwards is identical as the arrangement of the adjacent pixel unit i.e. pixel unit (2,1) of the second row first row.To, Two pixel units in same repetitive unit, for example, the third sub-pixel phase of pixel unit (1,1) and pixel unit (2,1) Mutually be staggered arrangement (the third sub-pixel of pixel unit (1,1) and pixel unit (2,1) is not arranged point-blank), because And the vapor deposition opening on the vapor deposition mask plate (FMM) to form third sub-pixel is also the arrangement that is staggered, and can reduce vapor deposition and cover The difficulty of film version manufacture craft and evaporation process.Compared to the sub-pixel pair in adjacent rows pixel unit in Real dot structures Its situation arranged, it is identical in process conditions, using the structure of the sub-pixel dislocation arrangement of this adjacent rows, expand Utilizable distance between the opening of each identical sub-pixel, so as to the smaller for doing the size of pixel unit, favorably In the manufacture for realizing sharpness screen.
First sub-pixel 301, the second sub-pixel 303 and third sub-pixel 305 can be in triangle disposition, " product " word Shape, the triangle disposition being rotated by 90 ° to the left or the triangle disposition being rotated by 90 ° to the right arrangement, can also be substantially be in triangle disposition, Triangle disposition, the triangle disposition being rotated by 90 ° to the left or the triangle disposition being rotated by 90 ° to the right.Arrangement shown in Fig. 3 In, in the pixel unit of odd-numbered line, the first sub-pixel 301, the second sub-pixel 303 and third sub-pixel 305 are in right rotation 90 The triangle disposition of degree is arranged, that is, the first sub-pixel 301 and the second sub-pixel 303 are arranged in left side, and third sub-pixel 305 is arranged On right side；In the pixel unit of even number line, the first sub-pixel 301, the second sub-pixel 303 and third sub-pixel 305 are in left-handed The triangle disposition arrangement turning 90 degrees, that is, third sub-pixel 305 is arranged in left side, the first sub-pixel 301 and the second sub-pixel 303 It is arranged in right side.
Further, point-blank with the first sub-pixel 301 arrangement of all pixels unit in a line, in a line Second sub-pixel 303 of all pixels unit is to arrange point-blank, with the third sub- picture of all pixels unit in a line Element 305 is also to arrange point-blank.
Wherein, each sub-pixel in pixel unit includes luminous zone (viewing area) and non-light-emitting area (non-display area), The luminous zone of each sub-pixel includes that cathode, anode and electroluminescence layer (organic emission layer), the electroluminescence layer are located at Between cathode and anode, for generating predetermined color light to realize display.It usually requires using evaporation process three times with respectively The electroluminescence layer of corresponding color (such as red, green or blue) is formed in the luminous zone of corresponding color pixel region, certainly, If shape is identical with arrangement, the electroluminescence layer of multiple color can also be realized using same mask plate by modes such as deviations Vapor deposition.
First sub-pixel, the second sub-pixel and third sub-pixel by red (R) sub-pixels, green (G) sub-pixels and Blue (B) sub-pixels composition.I.e. in the present embodiment, the first sub-pixel is red (R) sub-pixels, green (G) sub-pixels and indigo plant (B) one of sub-pixels, the second sub-pixel are it in red (R) sub-pixels, green (G) sub-pixels and blue (B) sub-pixels One, third sub-pixel is one of red (R) sub-pixels, green (G) sub-pixels and blue (B) sub-pixels, and the first sub-pixel, The color of second sub-pixel and third sub-pixel is different.For example, in arrangement shown in Fig. 3, the first sub-pixel 301 is green Color (G) sub-pixel, the second sub-pixel 303 are red (R) sub-pixel, and third sub-pixel 305 is blue (B) sub-pixel.Correspondingly, First sub-pixel 301 includes the luminous zones G 302 and the non-light-emitting areas G, and includes the organic emission layer for emitting green light；The Two sub-pixels 303 include the luminous zones R 304 and the non-light-emitting areas R, and include the organic emission layer for emitting feux rouges；Third Sub-pixel 305 includes the luminous zones B 306 and the non-light-emitting areas B, and includes the organic emission layer for emitting blue light.
Preferably, in order to extend the service life of OLED, in same pixel unit group, the area of blue subpixels is more than red The area of sub-pix and green sub-pixels, this is because being used to make the service life of the blue emitting material of blue subpixels generally most It is low, thus the service life of organic elctroluminescent device depend primarily on the service life of blue subpixels, reach it is identical display it is bright Under conditions of degree, when the size of blue subpixels increases, the brightness of blue subpixels can reduce, and flow through blue Asia by reducing The current density of pixel can extend the service life of blue subpixels, and then extend the service life of organic elctroluminescent device.
In Fig. 3, the shape and area of the first sub-pixel 301 and the second sub-pixel 303 are preferably equal, and mirror symmetry point Cloth, in each pixel unit, center line and the first sub-pixel 301 and the second sub- picture that third sub-pixel 305 extends along line direction The boundary line of element 303 overlaps, in this way, advantageously reducing pel spacing, and RGB sub-pixels is evenly distributed, and has preferable Display effect.Fig. 3 is specifically referred to, (center line 306 ' is by for center line 306 ' that third sub-pixel 305 extends along line direction Three sub-pixels 305 are divided into two parts and the center line 306 ' extends along line direction) and the first sub-pixel 301 and the second sub-pixel 303 boundary line overlaps.It should be noted that due to the first sub-pixel 301 and the second sub-pixel 303 in same pixel unit A line is shared, which is the boundary line of the first sub-pixel 301 and the second sub-pixel 303, it should be appreciated that herein " boundary " or " boundary line " is not limited to " boundary " or " boundary line " of entity, and can refer to two pixels or sub-pixel it Between virtual " boundary " or " boundary line ".In Fig. 3, the shape of the first sub-pixel 301 and the second sub-pixel 303 is rectangle, The shape of third sub-pixel 305 is square, and first sub-pixel, 301 and second sub-pixel 303 is along its short side extension side To arrangement, the length of side (height) of the luminous zone 306 of third sub-pixel 305 is that the short side of the luminous zone 302 of the first sub-pixel 301 is long 2 times of the bond length of the luminous zone 304 of degree and the second sub-pixel 303.
It will be appreciated that the shape of the first sub-pixel 301, the second sub-pixel 303 and third sub-pixel 305 not office It is limited to rectangle, can also be that other quadrangles or triangle, pentagon, hexagon, octagon except rectangle etc. are polygon One kind in shape or its arbitrary combination.In practical application, some deformations, example can also be done to part on the basis of above-mentioned shape Such as, fillet is made at four angles of quadrangle, and certain radian is presented.Meanwhile first sub-pixel 301 and the second sub-pixel 303 Area can not also be equal, and the area of third sub-pixel 305 is also not limited to the first sub-pixel 301 or the second sub-pixel 303 2 times of area can be required according to color matching accordingly to adjust the shape and/or area of each sub-pixel.For example, the first sub-pixel 301, the second sub-pixel 303 and 303 area of third sub-pixel can be all different, and third sub-pixel 303 (blue subpixels) is big It is more than the second sub- picture in the area of the area of the first sub-pixel 301 (green sub-pixels), the first sub-pixel 301 (green sub-pixels) The area of plain 303 (red sub-pixels)；Alternatively, as shown in figure 4, third sub-pixel 303 (blue subpixels) is equal to the first sub- picture The area of plain (green sub-pixels), and third sub-pixel 303 (blue subpixels) and the first sub-pixel (green sub-pixels) are big It is minimum in the area of the area of the second sub-pixel 303 (red sub-pixel), i.e. the second sub-pixel 303 (red sub-pixel).
In the dot structure, the sub-pixel of arbitrary same color is at the center of second direction (Y-direction or column direction) Distance Y1 with its in a first direction (X-direction or line direction) centre distance X1 may exist following relationship：Y1=2N/ (N+1) X1, alternatively, Y1=2X1, alternatively, X1/ 2=N/ (N+1) Y1。
For example, with reference to figure 3, third sub-pixel 305 (blue subpixels) is at the center of second direction (Y-direction or column direction) Distance Y1It is the centre distance X of its (X-direction or line direction) in a first direction14/3 times.
Fig. 6 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention, and Fig. 7 is one in Fig. 6 The schematic diagram of repetitive unit.It is in place of the difference of dot structure dot structure as shown in figure 3, is by picture shown in Fig. 3 Plain structure integral level overturns 180 degree.Wherein, the described first sub- repetitive unit 31 includes along the second direction (referred to herein as Y Direction) the third sub-pixel 305, the first sub-pixel 301 and the second sub-pixel 303 that are arranged in order, the second sub- repetitive unit 32 include the first sub-pixel 301, the second sub-pixel 303 and the third sub-pixel 305 being arranged in order in a second direction.Specifically, In the pixel unit of odd-numbered line, the first sub-pixel 301, the second sub-pixel 303 and third sub-pixel 305 are in be rotated by 90 ° to the left Triangle disposition is arranged, that is, third sub-pixel 305 is arranged in left side, and the first sub-pixel 301 and the second sub-pixel 303 are arranged in the right side Side；In the pixel unit of even number line, the first sub-pixel 301, the second sub-pixel 303 and third sub-pixel 305 are in right rotation 90 The triangle disposition of degree is arranged, that is, the first sub-pixel 301 and the second sub-pixel 303 are arranged in left side, and third sub-pixel 305 is arranged On right side.
Fig. 8 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.The dot structure and Fig. 3 It is in place of the difference of shown dot structure, with the first sub-pixel 301 and the second sub-pixel 303 of all pixels unit in a line It is staggered.Specifically, with all pixels unit in a line the first sub-pixel 301 be not be arranged in a linear, meanwhile, it is same The second sub-pixel 303 of all pixels unit is nor be arranged in a linear in row, but, with of all pixels unit in a line One sub-pixel 301 and the second sub-pixel 303 are staggered point-blank.For example, the first row first row pixel unit (1, 1) the second sub-pixel 303, the tertial picture of the first row of the pixel unit (1,2) of the first sub-pixel 301, the first row secondary series First sub-pixel 301 ... of plain unit (1,3) is arranged point-blank successively.
Fig. 9 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention.The dot structure and Fig. 3 It is in place of the difference of shown dot structure, is to be rotated by 90 ° OLED display shown in Fig. 3 so that row and column carries out Exchange, if will X-direction be referred to as line direction (transverse direction), Y-direction is referred to as column direction (longitudinal direction), it is possible to be interpreted as, First sub-pixel 301 and the second sub-pixel 303 are arranged in a line, and third sub-pixel 305 is arranged in another row.Pixel in same row The arrangement of unit is identical, it is preferred that each pixel unit along column direction overturn (spinning upside down) after arrangement with it is same The arrangement of adjacent pixel unit is identical in a line.For example, the pixel unit (1,1) of the first row first row is with its central point The pixel list of arrangement and pixel unit, that is, the first row secondary series with adjacent column in a line after column direction overturning 180 degree The arrangement of first (1,2) is identical.
Figure 10 is a kind of pixel arrangement schematic diagram of OLED display in the embodiment of the present invention.The dot structure and figure It is in place of the difference of dot structure shown in 3, the centre distance Y of the sub-pixel second direction of arbitrary same color1With first party To centre distance X1There are following relationships：Y1=2X1.In this case, without compression algorithm, direct 1:1 display be It can.Wherein, the shape of the first sub-pixel 301 and the second sub-pixel 303 (and its luminous zone) is square, third sub-pixel The shape of 305 (and its luminous zones) is rectangle, and pixel unit is integrally square, the first sub-pixel 301 and the second sub-pixel 303 along third sub-pixel 305 long side extending direction arrange.
Figure 11 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention, and Figure 12 is one in Figure 11 The schematic diagram of a repetitive unit.The dot structure includes the multiple repetitive units 30 arranged in the matrix form, each described heavy Multiple unit 30 includes that the first son that is being disposed adjacent along first direction and respectively including three different sub-pixels of color repeats list Member 31 and the second sub- repetitive unit 32.The first sub- repetitive unit 31 includes the second sub-pixel being arranged in order in a second direction 303, the first sub-pixel 301 and third sub-pixel 305.The second sub- repetitive unit 32 includes being arranged successively along the second direction The third sub-pixel 305 of row, the second sub-pixel 303 and the first sub-pixel 301.The first son weight in each repetitive unit 30 31 and second sub- repetitive unit 32 of multiple unit constitutes two pixel units being disposed adjacent in a second direction, thus, each pixel Unit includes the first sub-pixel 301, the second sub-pixel 303 and third that color is different and virtual center line is triangular in shape Sub-pixel 305.
As is illustrated by figs. 11 and 12, it is in place of the difference of dot structure dot structure as shown in figure 3, each repeats list In member, the third sub-pixel 305 of one of them sub- repetitive unit is not repeated along the center line that line direction extends with another height The boundary line of the first sub-pixel 301 and the second sub-pixel 303 in unit overlaps, for example, the in the first sub- repetitive unit 31 Three sub-pixels 305 along the center line that line direction extends not with the first sub-pixel 301 and second in the second sub- repetitive unit 32 The boundary line of sub-pixel 303 overlaps, but, the third sub-pixel 305 in the first sub- repetitive unit 31 and the second sub- repetitive unit First sub-pixel 301 alignment arrangement in 32.The first sub- repetitive unit 31 and the second sub- repetitive unit 32 in each repetitive unit Be staggered the distance of a sub-pixel.
Wherein, the first sub-pixel 301 (and its luminous zone), the second sub-pixel 303 (and its luminous zone), third sub-pixel The shape of 305 (and its luminous zones) can be square, the virtual center line of the first sub-pixel 301 and the second sub-pixel 303 And first sub-pixel 301 and third sub-pixel 305 two waists of the virtual center line as isosceles triangle.That is, each weight A pixel unit in multiple unit is integrally L-shaped, and one other pixel unit is in integrally the L-shaped of rotation 180 degree.Preferably, One sub-pixel 301 (and its luminous zone), second sub-pixel 303 (and its luminous zone), third sub-pixel 305 (and its luminous zone) Area is identical, in this way, the arrangement position of the sub-pixel of same color is in identical rule, and the size of each pixel is also identical, i.e., The arrangement rule of three different sub-pixels of color is identical, can be used in the sub-pixel for preparing different colours so same A metal mask plate, to reduce the production quantity of metal mask plate.
The first sub-pixel 301, the second sub-pixel 303 and third sub-pixel are distributed in the dot structure, on column direction The first sub-pixel 301 and the second sub-pixel 303 (tri- colors of RG) is distributed on line direction, compared to one party in 305 (tri- colors of RGB) A kind of sub-pixel of color is only distributed with upwards, this arrangement mode row, column direction shows more uniform.
Figure 13 is the pixel arrangement schematic diagram of another OLED display in the embodiment of the present invention, and Figure 14 is one in Figure 13 The schematic diagram of a repetitive unit.As shown in Figure 13 and Figure 14, the dot structure and the difference of dot structure shown in Figure 12 is in In the first sub- repetitive unit 31 includes the first sub-pixel 301,303 and of the second sub-pixel being arranged in order in a second direction Third sub-pixel 305.The second sub- repetitive unit 32 include the third sub-pixel 305 being arranged in order along the second direction, First sub-pixel 301 and the second sub-pixel 303.Third sub-pixel 305 and the second son in first sub- repetitive unit 31 repeat single First sub-pixel 301 alignment arrangement in member 32.The first sub- repetitive unit 31 and the second sub- repetitive unit in each repetitive unit 32 distances for being staggered a sub-pixel.
Wherein, the first sub-pixel 301 (and its luminous zone), the second sub-pixel 303 (and its luminous zone), third sub-pixel The shape of 305 (and its luminous zones) can be square, the virtual center line of the first sub-pixel 301 and the second sub-pixel 303 And first sub-pixel 301 and third sub-pixel 305 two waists of the virtual center line as isosceles triangle.
It is understood that above-mentioned dot structure can also carry out deformation appropriate, for example, be rotated by 90 °, 180 degree, 270 Degree etc., and, the shape and area of each sub-pixel can carry out deformation appropriate, also for example, the first sub-pixel and the second sub- picture The position of element can mutually be exchanged, and will not enumerate herein.
Several dot structures of the embodiment of the present invention are described above, wherein the sub-pixel second party of arbitrary same color To the centre distance Y of (such as Y-direction)1With the centre distance X of the sub-pixel first direction (such as X-direction) of arbitrary same color1In the presence of Following relationship：
Y1=2X1, alternatively, Y1=2N/ (N+1) X1；
Wherein, N is the integer more than or equal to 1.
For example, as N=2, Y1=4/3X1；
For example, as N=1, Y1=X1。
Alternatively, the centre distance Y of the sub-pixel second direction (Y-direction) of arbitrary same color1With arbitrary same color The centre distance X of sub-pixel1There are following relationships：
X1/ 2=N/ (N+1) Y1；
That is, X1=2N/ (N+1) Y1；
Wherein, N is the integer more than or equal to 1.
That is, arbitrarily the centre distance X1 of the sub-pixel of same color in a first direction is it in second direction The 2N/ (N+1) of heart distance Y1 times.
Dot structure driving method provided in this embodiment, by the pixel unit etc. in the dot structure in a direction Effect is (N+1)/N times of pixel unit in Real dot structures, and then improves the virtual resolution of display device.
For example, as N=2,2M pixel unit on line direction realizes in Real dot structures 3M pixel unit Display effect, that is, each repetitive unit has 2 pixel units in the Y direction, and X-direction has 1 pixel unit, while by the side X To resolution compression to 2/3.
So, there are following relationships by X and the pitch of Y-direction：
Y1/ 2=2/3X1,
That is, Y1=4/3X1。
In general, the display information of image is all on the basis of Real dot structures, therefore, this image information is inputted To before performing image display in the dot structure of the present embodiment, need to convert display information, by Real dot structures In pixel intensity be assigned in the dot structure of the present embodiment, the at this moment pixel of the pixel of Real dot structures and the present embodiment Pixel unit in structure has one-to-one correspondence.In the present embodiment, a kind of mode is to be divided into Real dot structures several Benchmark pixel unit group, each benchmark pixel unit group include that two rows three arrange totally six benchmark pixel units, each benchmark pixel Unit includes three Alignments and the mutually different sub-pixel of color, and obtains the bright of benchmark pixel unit group sub-pixel Degree.And the dot structure is divided into several object pixel unit groups, each object pixel unit group includes two repetitions Unit (i.e. two rows two arrange totally four object pixel units), the brightness further according to benchmark pixel unit group sub-pixel determines target The brightness of pixel unit group sub-pixel makes the display effect of an object pixel unit group be equivalent to a benchmark pixel unit The display effect of group.With this, three pixel units in Real dot structures are realized by two pixel units in dot structure Display effect, for example, totally 780 pixel units can realize in Real dot structures the aobvious of 1280 pixel units on line direction Show effect, improves virtual resolution.
With reference to figure 15 (a), in a benchmark pixel unit group, including two rows three row totally six benchmark pixel unit P11 ', P12 ', P13 ', P21 ', P22 ', P23 ', each benchmark pixel unit include the sub-pixel of three Alignments, benchmark pixel list Arrangement of subpixels in first P11 ', P12 ', P13 ' in a line, benchmark pixel unit P21 ', P22 ', P23 ' arrangement of subpixels On another row.
It for sake of convenience, will be red in the benchmark pixel unit P11 ' of the first row first row in benchmark pixel unit group P0 ' Sub-pixels are denoted as R11 ', and green sub-pixels are denoted as G11 ', and blue subpixels are denoted as B11 '；By the reference image of the first row secondary series Red sub-pixel in plain unit P12 ' is denoted as R12 ', and green sub-pixels are denoted as G12 ', and blue subpixels are denoted as B12 '；By second Red sub-pixel in the benchmark pixel unit P21 ' of row first row is denoted as R21 ', and green sub-pixels are denoted as G21 ', the sub- picture of blue Element is denoted as B21 '；Red sub-pixel in the benchmark pixel unit P22 ' of second row secondary series is denoted as R22 ', green sub-pixels It is denoted as G22 ', blue subpixels are denoted as B22 ', and so on.
With reference to figure 15 (b), in object pixel unit group, including two repetitive units P1, P2, repetitive unit P1 include two Pixel unit P11, P12, repetitive unit P2 include two pixel units P12, P22.Pixel unit P11, P12 Alignment is same A line, pixel unit P21, P22 Alignment are in same a line.Pixel unit P11, P12, P21, P22 include respectively color mutually not Three identical and triangular in shape virtual center line sub-pixels.
For sake of convenience, in object pixel unit group P0, the red sub-pixel in benchmark pixel unit P11 is denoted as R11, Green sub-pixels are denoted as G11, and blue subpixels are denoted as B11；Red sub-pixel in benchmark pixel unit P12 is denoted as R12, it is green Sub-pixels are denoted as G12, and blue subpixels are denoted as B12；Red sub-pixel in benchmark pixel unit P21 is denoted as R21, green Sub-pixel is denoted as G21, and blue subpixels are denoted as B21；Red sub-pixel in benchmark pixel unit P22 is denoted as R22, green Pixel is denoted as G22, and blue subpixels are denoted as B22.
As shown in Figure 15 (a) and Figure 16, benchmark pixel unit P11 ' is by gate lines G 1 ' and data line S11 ', S12 ', S13 ' Control, benchmark pixel unit P12 ' are controlled by gate lines G 1 ' and data line S21 ', S22 ', S23 ', benchmark pixel unit P13 ' by Gate lines G 1 ' and data line S31 ', S32 ', S33 ' controls, benchmark pixel unit P21 ' by gate lines G 2 ' and data line S11 ', S12 ', S13 ' are controlled, and benchmark pixel unit P22 ' is controlled by gate lines G 2 ' and data line S21 ', S22 ', S23 ', benchmark pixel Unit P23 ' is controlled by gate lines G 2 ' and data line S31 ', S32 ', S33 ', it can be seen that six benchmark pixel unit P11 ', P12 ', P13 ', P21 ', P22 ', P23 ' are rectangular configuration.
As shown in Figure 15 (b), Figure 17 and Figure 18, object pixel unit P11 is by gate lines G 1 and data line S11, S12, S13 Control, object pixel unit P12 are controlled by gate lines G 1 and data line S21, S22, S23, and object pixel unit P21 is by grid line G2 and data line S11, S12, S13 control, object pixel unit P22 are controlled by gate lines G 2 and data line S21, S22, S23.Example It is realized in a manner of the following two kinds in this way：
With reference to figure 17, a kind of mode can be, R11, G11, B11, R12, G12, B12 by gate lines G 1 and data line S11, S12, S13, S21, S22, S23 are controlled, B21, G21, R21, B22, G22, R22 by gate lines G 2 and data line S11, S12, S13, S21, S22, S23 are controlled.
With reference to figure 18, another way can be that R11, G11, B11, R12, G12, B12 are by gate lines G 1 and data line S11, S12, S13, S21, S22, S23 are controlled, B21, R21, G21, B22, R22, G22 by gate lines G 2 and data line S11, S12, S13, S21, S22, S23 are controlled.
Since four pixel units need to undertake in benchmark pixel unit group six pixel units in object pixel unit group Brightness, that is, three benchmark pixel units adjacent on line direction in benchmark pixel unit group are merged into object pixel unit Two pixel units are shown in group, to realize 2 pair 3 of display effect.Therefore it determines each in the benchmark pixel unit group After the brightness of sub-pixel, need to assign it in obj ect reference pixel unit.For example, the following method of salary distribution can be used：Will in Between the brightness of pixel unit P11 ', P21 ' that arranges be divided into two parts, object pixel unit P11, P12 on odd number undertake reference image Plain unit P11 ', the brightness of P13 ' and the brightness of benchmark pixel unit P12 ' half, object pixel unit P21 on even number, P22 undertakes benchmark pixel unit P21 ', the brightness of P23 ' and the brightness of P22 ' half.
By taking the sub-pixel B12 ' of benchmark pixel unit P12 ' in Figure 15 (a) as an example, a half intensity can be distributed to adjacent mesh The sub-pixel B11 of mark pixel unit P11 is shown.
Specific luminance distribution mode is as follows：
1) in odd-numbered line,
L11r=L '11r
L11g=L '11g
L11b=L '11b+L’12b/2
L12r=L '13r+L’12r/2
L12g=L '13g+L’12g/2
L12b=L '13b
Wherein, L11r、L11g、L11b、L12r、L12g、L12bRefer to object pixel unit group sub-pixel R11, G11, B11, The brightness value of R12, G12, B12；L’11r、L’11g、L’11b、L’12r、L’12g、L’12b、L’13r、L’13g、L’13bIt refer to benchmark pixel The brightness value of unit group sub-pixel R11 ', G11 ', B11 ', R12 ', G12 ', B12 ', R13 ', G13 ', B13 '.
2) in even number line
L21r=L '21r+L’22r/2
L21g=L '21g+L’22g/2
L21b=L '21b
L22r=L '23r
L22g=L '23g
L22b=L '23b+L’22b/2
Wherein, L21r、L21g、L21b、L22r、L22g、L22bRefer to object pixel unit group sub-pixel R21, G21, B21, The brightness value of R22, G22, B22；L’21r、L’21g、L’21b、L’22r、L’22g、L’22b、L’23r、L’23g、L’23bIt refer to object pixel The brightness value of unit group sub-pixel R21 ', G21 ', B21 ', R22 ', G22 ', B22 ', R23 ', G23 ', B23 '.
Above-mentioned formula is the calculating to brightness, brightness value LumIt is as follows with the relationship of grayscale value Gray：
Lum=(Gray/255)2.2
To save operation time, the mode that grayscale value is tabled look-up can be used.
As N=2, Y1=4/3X1, another driving method also can be used, so that 2M pixel unit on line direction Realize the display effect of 3M pixel unit in Real dot structures.
That is, the pixel unit in the dot structure in a direction to be equivalent to 3/2 times of picture in Real dot structures When plain unit, under type such as may be used and realize that pixel borrows：
In the dot structure m rows i-th arrange third sub-pixel undertake m rows (3*i-1) in Real dot structures/ The brightness of the third sub-pixel of 2 row and m rows (3*i+1)/2 row；
The second sub-pixel that m row jth arranges in the dot structure undertakes m rows (3*j/2- in Real dot structures 1) brightness of the second sub-pixel of row and m rows 3*j/2 row；
The first sub-pixel that m row jth arranges in the dot structure undertakes m rows (3*j/2- in Real dot structures 1) brightness of the first sub-pixel of row and m rows 3*j/2 row；
In the dot structure line n i-th arrange the first sub-pixel undertake line n (3*i-1) in Real dot structures/ The brightness of first sub-pixel of 2 row and m rows (3*i+1)/2 row；
In the dot structure line n i-th arrange the second sub-pixel undertake line n (3*i-1) in Real dot structures/ The brightness of second sub-pixel of 2 row and m rows (3*i+1)/2 row；
The third sub-pixel that line n jth arranges in the dot structure undertakes line n (3*j/2- in Real dot structures 1) brightness of the third sub-pixel of row and line n 3*j/2 row；
Wherein, m and i is odd number, and n and j are even number.
This driving method is discussed in detail with reference to Figure 19.
1) in odd-numbered line
It is a pixel unit to be sequentially followed successively by sub-pixel RGBRGB ..., RGB according to data line (source line), is led to The expression of two pixels pair, three pixels is realized in the borrow for crossing sub-pixel.That is, two object pixel units P11, P12 are equivalent to three A benchmark pixel unit P11 ', P12 ', P13 '.
In conjunction with shown in Figure 19, specific luminance distribution mode is as follows：
In object pixel unit P11, red sub-pixel R11 undertakes red sub-pixel R11 ' in benchmark pixel unit P11 ' Brightness, green sub-pixels G11 undertake the brightness of benchmark pixel unit P11 ' Green sub-pixels G11 ', and blue subpixels B11 is held Carry on a shoulder pole the brightness of blue subpixels B12 ' in blue subpixels B11 ' and benchmark pixel unit P12 ' in benchmark pixel unit P11 '；
In object pixel unit P12, red sub-pixel R12 undertake in benchmark pixel unit P12 ' red sub-pixel R12 ' and The brightness of red sub-pixel R13 ' in benchmark pixel unit P13 ', green sub-pixels G12 undertake green in benchmark pixel unit P12 ' The brightness of sub-pixels G12 ' and benchmark pixel unit P13 ' Green sub-pixels G13 ', blue subpixels B12 undertake reference image The brightness of blue subpixels B13 ' in plain unit P13 '.
In odd-numbered line, a certain sub-pixel undertakes corresponding two sub-pixels in benchmark pixel unit in object pixel unit Brightness when, it is also necessary to consider the luminance distribution coefficient of the two sub-pixels.It is assumed that sub-pixel in benchmark pixel unit Brightness is L1, and the brightness of another sub-pixel is L2, then in the object pixel unit sub-pixel brightness value LumCan be：
Lum=L1*L1/ (L1+L2)+L2*L2/ (L1+L2).
Specifically, odd-numbered line has the processing mode of the sub-pixel of borrow relationship to be, for example,：
For blue subpixels,
L1=LumB(m,(3*i-1)/2)；
L2=LumB(m,(3*i+1)/2)；
When L1 and L2 are equal to 0, LumB(m, i) '=0；
When L1 or L2 is not equal to 0, LumB(m, i) '=L1*L1/ (L1+L2)+L2*L2/ (L1+L2)；
For red sub-pixel,
L1=LumR(m,(3*j/2-1))；
L2=LumR(m,3*j/2)；
When L1 and L2 are equal to 0, LumR(m, j) '=0；
When L1 or L2 is not equal to 0, LumR(m, j) '=L1*L1/ (L1+L2)+L2*L1/ (L1+L2)；
For green sub-pixels,
L1=LumG(m,(3*j/2-1))；
L2=LumG(m,3*j/2)；
When L1 and L2 are equal to 0, LumG(m, j) '=0；
When L1 or L2 is not equal to 0, LumG(m, j) '=L1*L1/ (L1+L2)+L2*L1/ (L1+L2)；
Wherein, m indicates line number, and i and j indicate columns, and m and i are odd number, and j is even number, on the basis of L1 and L2 in pixel unit Brightness value, LumB(m, i) ' is the brightness value of the blue subpixels in the object pixel unit that m rows i-th arrange, LumR(m,i)’ The brightness value of red sub-pixel in the object pixel unit arranged for m rows i-th, LumG(m, i) ' is the target that m rows i-th arrange The brightness value of green sub-pixels in pixel unit.
2) in even number line
As shown in figure 19, it is one to be sequentially followed successively by sub-pixel BRGBRG ..., BRG according to data line (source line) Pixel unit realizes the expression of two pixels pair, three pixels by the borrow of sub-pixel.That is, two object pixel unit P21, P22 is equivalent to three benchmark pixel unit P21 ', P22 ', P23 '.
For even number line, in each repetitive unit, in the one other pixel unit of repetitive unit, the first sub-pixel undertakes The brightness of first sub-pixel in two adjacent benchmark pixel units, the second sub-pixel undertake two adjacent benchmark pixel units In the second sub-pixel brightness, third sub-pixel holds the brightness of third sub-pixel in a benchmark pixel unit；One pixel list The first sub-pixel and the second sub-pixel of member undertake the brightness of the first sub-pixel and the second sub-pixel in benchmark pixel unit, third Sub-pixel undertakes the brightness of third sub-pixel in two adjacent benchmark pixel units.
The specific method of salary distribution is as follows：
In object pixel unit P21, blue subpixels B21 undertakes blue subpixels B21 ' in benchmark pixel unit P21 ' Brightness, red sub-pixel R21 undertake red in red sub-pixel R21 ' and benchmark pixel unit P22 ' in benchmark pixel unit P21 ' The brightness of sub-pixels R22 ', green sub-pixels G21 undertake benchmark pixel unit P21 ' Green sub-pixel G21 ' and reference image The brightness of plain unit P22 ' Green sub-pixels G22 '；
In object pixel unit P22, blue subpixels B22 undertake in benchmark pixel unit P22 ' blue subpixels B22 ' and The brightness of blue subpixels B23 ' in benchmark pixel unit P23 ', red sub-pixel R22 undertake red in benchmark pixel unit P23 ' The brightness of sub-pixels R23 ', green sub-pixels G22 undertake the brightness of benchmark pixel unit P23 ' Green sub-pixels G23 '.
In even number line, a certain sub-pixel undertakes corresponding two sub-pixels in benchmark pixel unit in object pixel unit Brightness when, it is also necessary to consider the luminance distribution coefficient of the two sub-pixels.It is assumed that sub-pixel in benchmark pixel unit Brightness is L1, and the brightness of another sub-pixel is L2, then the brightness value L of the object pixel unitumCan be：Lum=L1* L1/(L1+L2)+L2*L2/(L1+L2)。
Specifically, even number line has the processing mode of the sub-pixel of borrow relationship to be, for example,：
For red sub-pixel,
L1=LumR(n, (3*i-1)/2)；
L2=LumR(n, (3*i+1)/2)；
When L1 and L2 are equal to 0, LumR(n, i) '=0；
When L1 or L2 is not equal to 0, LumR(n, i) '=L1*L1/ (L1+L2)+L2*L1/ (L1+L2)；
For green sub-pixels,
L1=LumG(n, (3*i-1)/2)；
L2=LumG(n, (3*i+1)/2)；
When L1 and L2 are equal to 0, LumG (n, i) '=0；
When L1 or L2 is not equal to 0, LumG(n, i) '=L1*L1/ (L1+L2)+L2*L1/ (L1+L2)；
For blue subpixels,
L1=LumB(n, (3*j/2-1))；
L2=LumB(n, 3*j/2)；
When L1 and L2 are equal to 0, LumB(n, j) '=0；
When L1 or L2 is not equal to 0, LumB(n, j) '=L1*L1/ (L1+L2)+L2*L1/ (L1+L2)；
Wherein, n indicates that line number, i and j indicate that columns, n are even number, and i is odd number, and j is even number, and L1 and L2 indicate reference image Brightness value in plain unit, LumR(n, i) ' indicates the brightness value of the red sub-pixel in the object pixel unit that line n i-th arranges, LumG(n, i) ' indicates the brightness value of the green sub-pixels in the object pixel unit that line n i-th arranges, LumB(n, j) ' indicates n-th The brightness value value of blue subpixels in the object pixel unit of row jth row.
Certainly, a certain sub-pixel undertakes the brightness of corresponding two sub-pixels in benchmark pixel unit in object pixel unit When, it can also directly be shown using the maximum value or average value of the brightness of the two sub-pixels, also with using such as lower section Formula is shown：
Lum=L1*x+L2*y；
Wherein, x+y=1.
For example, x=0.3, y=0.7.
For above-mentioned dot structure, the present embodiment provides a kind of dot structure driving method again, and each repetitive unit is in the side Y To with 2 pixel units, X-direction has 1 pixel unit, meanwhile, make the M pixel unit realization Real pictures on line direction The display effect of 2M pixel unit in plain structure, that is, X-direction pixel unit is compressed to 1/2.
So, there are following relationships by N=1, X and the pitch of Y-direction：
Y1/ 2=X1/ 2,
That is, Y1=X1。
In this way, the pixel unit in the dot structure in a direction can be equivalent to 2 times in Real dot structures Pixel unit improves virtual resolution.
It is as follows that relationship is borrowed between sub-pixel：
As i=1, the second sub-pixel that m rows i-th arrange in the dot structure undertakes m rows in Real dot structures The brightness of second sub-pixel of the i-th row；
As 2≤i≤W/2, the second sub-pixel that m rows i-th arrange in the dot structure undertakes in Real dot structures M rows (2i-2) arrange and the brightness of the second sub-pixel of m rows (2i-1) row；
As i=1, the first sub-pixel that m rows i-th arrange in the dot structure undertakes m rows in Real dot structures The brightness of first sub-pixel of the i-th row；
As 2≤i≤W/2, the first sub-pixel that m rows i-th arrange in the dot structure undertakes in Real dot structures M rows (2i-2) arrange and the brightness of the first sub-pixel of m rows (2i-1) row；
As 1≤i≤W/2, the third sub-pixel that m rows i-th arrange in the dot structure undertakes in Real dot structures M rows (2i-1) arrange and the brightness of the third sub-pixel of m rows 2i row；
As i=1, the third sub-pixel that line n i-th arranges in the dot structure undertakes line n in Real dot structures The brightness of the third sub-pixel of i-th row；
As 2≤i≤W/2, the third sub-pixel that line n i-th arranges in the dot structure undertakes in Real dot structures Line n (2i-2) arranges and the brightness of the third sub-pixel of line n (2i-1) row；
As 1≤i≤W/2, the second sub-pixel that line n i-th arranges in the dot structure undertakes in Real dot structures Line n (2i-1) arranges and the brightness of the second sub-pixel of line n 2i row；
As 1≤i≤W/2, the first sub-pixel that line n i-th arranges in the dot structure undertakes in Real dot structures Line n (2i-1) arranges and the brightness of the first sub-pixel of line n 2i row；
Wherein, m and i is odd number, and n is even number, i=W/2, the shared W row × H row pixel units of Real dot structures, institute It states dot structure and shares i row × H row pixel units.
This driving method is discussed in detail with reference to Figure 20.
1) in odd-numbered line
As shown in figure 20, it is one to be sequentially followed successively by sub-pixel RGBRGB ..., RGB according to data line (source line) Pixel unit realizes the display of two pixel units of a pixel unit pair by the borrow of sub-pixel.
The specific method of salary distribution is as follows：
In object pixel unit P11, red sub-pixel R11 undertakes red sub-pixel R11 ' in benchmark pixel unit P11 ' Brightness, green sub-pixels G11 undertake the brightness of benchmark pixel unit P11 ' Green sub-pixels G11 ', and blue subpixels B11 is held Carry on a shoulder pole the brightness of blue subpixels B12 ' in blue subpixels B11 ' and benchmark pixel unit P12 ' in benchmark pixel unit P11 '；
In object pixel unit P12, red sub-pixel R12 undertake in benchmark pixel unit P12 ' red sub-pixel R12 ' and The brightness of red sub-pixel R13 ' in benchmark pixel unit P13 ', green sub-pixels G12 undertake green in benchmark pixel unit P12 ' The brightness of sub-pixels G12 ' and benchmark pixel unit P13 ' Green sub-pixels G13 ', blue subpixels B12 undertake reference image In plain unit P13 ' in blue subpixels B13 ' and benchmark pixel unit P14 ' blue subpixels B14 ' brightness；
And so on, complete the borrow of odd-numbered line sub-pixel.
Since a certain sub-pixel of object pixel unit in odd-numbered line undertakes corresponding two sub- pictures in benchmark pixel unit When the brightness of element, it is also necessary to consider the luminance distribution coefficient of the two sub-pixels, a kind of mode is that odd-numbered line has borrow relationship The processing mode of sub-pixel is the average value for the brightness value for taking two sub-pixels undertaken, specific as follows：
Wherein, m indicates that line number, i indicate that columns, m are odd number, and it is W × H (such as 1280*640) that data, which input resolution ratio, LR (m, i) is the brightness value of the red sub-pixel in the object pixel unit that m rows i-th arrange, and LG (m, i) is what m rows i-th arranged The brightness value of green sub-pixels in object pixel unit, LB (m, i) are the blue in the object pixel unit that m rows i-th arrange The brightness value of sub-pixel, LumR(m, i) is the brightness value of red sub-pixel in the benchmark pixel unit that m rows i-th arrange, LumG(m, I) brightness value of the benchmark pixel unit Green sub-pixel arranged for m rows i-th, LumB(m, i) is the reference image that m rows i-th arrange The brightness value of blue subpixels in plain unit.
2) in even number line
As shown in figure 21, it is one to be sequentially followed successively by sub-pixel BRGBRG ..., RGB according to data line (source line) Pixel unit realizes the display of two pixel units of a pixel unit pair by the borrow of sub-pixel.
The specific method of salary distribution is as follows：
In object pixel unit P21, blue subpixels B21 undertakes the bright of blue subpixels B2 in benchmark pixel unit P21 ' Degree, red sub-pixel R21 undertake red in red sub-pixel R21 ' and benchmark pixel unit P22 ' in benchmark pixel unit P21 ' The brightness of sub-pixel R22 ', green sub-pixels G21 undertake benchmark pixel unit P21 ' Green sub-pixel G21 ' and benchmark pixel The brightness of unit P22 ' Green sub-pixels G22 '；
In object pixel unit P22, blue subpixels B22 undertake in benchmark pixel unit P22 ' blue subpixels B22 ' with And in benchmark pixel unit P23 ' blue subpixels B23 ' brightness, red sub-pixel R22 undertakes in benchmark pixel unit P23 ' The brightness of red sub-pixel R24 ', green sub-pixels G22 undertake benchmark in red sub-pixel R23 ' and benchmark pixel unit P24 ' The brightness of pixel unit P23 ' Green sub-pixel G23 ' and benchmark pixel unit P24 ' Green sub-pixels G24 '；
And so on, complete the borrow of even number line sub-pixel.
Similarly, since a certain sub-pixel of object pixel unit undertakes in benchmark pixel unit corresponding two in even number line When the brightness of sub-pixel, it is also necessary to consider the luminance distribution coefficient of the two sub-pixels, a kind of mode is that odd-numbered line has borrow to close The processing mode of the sub-pixel of system is the average value for the brightness value for taking two sub-pixels undertaken, specific as follows：
Wherein, n indicates that line number, i indicate that columns, n are even number, and it is W × H (such as 1280*640) that data, which input resolution ratio, LB (n, i) is the brightness value of the blue subpixels in the object pixel unit that line n i-th arranges, and LR (n, i) is what line n i-th arranged The brightness value of red sub-pixel in object pixel unit, LG (n, i) are the green in the object pixel unit that line n i-th arranges The brightness value of sub-pixel.
As N=1, Y1=X1, another driving method also can be used, so that M pixel unit on line direction is realized The display effect of 2M pixel unit in Real dot structures.In conjunction with shown in Figure 21, the following two kinds type of drive may be used：
1) pixel unit in the dot structure only undertakes the brightness of the sub-pixel of half in Real dot structures, another Half sub-pixel omission is not shown, for example, the sub-pixel omission with dotted line frame in Figure 21 a is not shown, that is, by benchmark pixel list Blue subpixels B11 ' in first P11 ', the red sub-pixel R21 ' in benchmark pixel unit P21 ' and green sub-pixels G21 ', Blue in red sub-pixel R12 ' and green sub-pixels G12 ', benchmark pixel unit P22 ' in benchmark pixel unit P12 ' Pixel B 22 ', the blue subpixels B13 ' in benchmark pixel unit P13 ', the red sub-pixel in benchmark pixel unit P23 ' R23 ' and green sub-pixels G23 ', the red sub-pixel R14 ' in benchmark pixel unit P14 ' and green sub-pixels G14 ', benchmark Blue subpixels B24 ' omissions in pixel unit P24 ' are not shown.To realize 1 pair 2 of display effect.
2) sub-pixel with dotted line frame in Figure 21 a is carried out the first ratio brightness to show, is carried out without the part of dotted line frame Second ratio brightness shows that second ratio and the first ratio are unequal, for example, second ratio is more than the first ratio, For example, first ratio is 30%, the second ratio is 70%.In this way, can guarantee the luminance difference of laterally adjacent row, also may be used The display of single-point is set not to be distorted excessively.Certainly, the first ratio and the second ratio can also be equal, i.e. brightness display scale can also It half-and-half divides, the identical easily fuzzy display details of two row brightness adjacent so still can get certainly in the case where high PPI is shown Good display effect.
It as shown in figure 22, can be by each in driving chip (Drive IC) calculating benchmark pixel unit in OLED display screen The brightness value (i.e. raw image data) of sub-pixel, and treated image data is obtained using the above method, and then control mesh Sub-pixel in mark pixel unit is shown with the brightness value of the sub-pixel of corresponding color in benchmark pixel unit group, realizes M picture Display effect of the plain unit to M* (N+1)/N pixel units in Real dot structures.
It is that two pixel lists being disposed adjacent in a second direction (column direction) are constituted with described two sub- repetitive units above (each pixel unit includes the first sub-pixel that color is different and virtual center line is triangular in shape, the second sub-pixel to member With third sub-pixel), M pixel unit realizes M*N (N+1) pixel unit in Real dot structures on first direction (line direction) Display effect for the explanation that carries out.It should be understood that described two sub- repetitive units can also be constituted along first direction (row side To) two pixel units being disposed adjacent, pixel unit realizes (N+1)/N in Real dot structures in second direction (column direction) The display effect of pixel unit.For example, as shown in figure 23 and figure 24, wherein X1=Y1, i.e. N=1, that is, M pixel on column direction Unit realizes the display effect of M* (N+1)/N pixel units in Real dot structures.For another example, as illustrated in figs. 25 and 26, In, X1=4/3Y1, i.e. N=2, that is, 2 pixel units realize the display of 3 pixel units in Real dot structures on column direction Effect.Driving when driving method when pixel is compressed on column direction is compressed with pixel on above-described line direction Method And Principle is similar, and those skilled in the art could be aware that how to drive in conjunction with record above, and details are not described herein.
It is found that for any type driving method described above, when in the pixel unit in the dot structure One sub-pixel, the second sub-pixel and third sub-pixel need to undertake the bright of two sub-pixels of corresponding color in Real dot structures When spending, following any mode may be used and realize borrow：
1) choose in the Real dot structures maximum value of the brightness of two sub-pixels of corresponding color or average value into Row display.
2)Lum=L1*L1/ (L1+L2)+L2*L2/ (L1+L2)；
Wherein, LumFor first sub-pixel, the brightness value of the second sub-pixel or third sub-pixel, L1 and L2 are Real pictures The brightness value of two sub-pixels of corresponding color in plain structure.
3)Lum=L1*x+L2*y；X+y=1；
Wherein, LumFor first sub-pixel, the brightness value of the second sub-pixel or third sub-pixel, L1 and L2 are Real pictures The brightness value of two sub-pixels of corresponding color in plain structure.
To sum up, the present invention is based on above-mentioned dot structures, it is proposed that a kind of matching image element driving method, it will be traditional Real dot structures are compressed, and Real pixel knots are equivalent to by M pixel unit in a direction in the dot structure M* (N+1)/N pixel units in structure, improve virtual resolution.The image element driving method is particularly suitable for high PPI pixels knot Structure (PPI be 300 or more), experiment show that the effect of the dot structure and its driving method is more in the case that display screen PPI is higher It is good.
Based on same inventive concept, the present embodiment additionally provides a kind of OLED display, including the embodiment of the present invention carries The above-mentioned dot structure supplied, the display device can be：Mobile phone, tablet computer, television set, display, laptop, number Any product or component with display function such as photo frame, navigator.For other essential compositions of the display device Part is it will be apparent to an ordinarily skilled person in the art that having, and this will not be repeated here, also be should not be used as to the present invention's Limitation.The implementation of the display device may refer to the embodiment of above-mentioned organic elctroluminescent device, and it is no longer superfluous to repeat place It states.Each pixel column can connect a grid line in the dot structure, and each pixel column can connect a data line, due to The luminous zone of the sub-pixel of odd-numbered line and even number line same color mutually staggers arrangement in the dot structure, thus data line and/ Grid line can be in bending.
Dot structure proposed by the present invention and its driving method is described in detail in above example, it should be appreciated that Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, field of the present invention Any change, the modification that those of ordinary skill does according to the disclosure above content, belong to the protection domain of claims.And And each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are implement with other The difference of example, just to refer each other for identical similar portion between each embodiment.

Claims (10)

1. a kind of dot structure, which is characterized in that the dot structure includes the multiple repetitive units arranged in the matrix form, often One repetitive unit includes two sons that are being disposed adjacent along first direction and respectively including three different sub-pixels of color Repetitive unit；A sub- repetitive unit in each repetitive unit includes the first sub- picture being arranged in order in a second direction Element, the second sub-pixel and third sub-pixel or the second sub-pixel, the first sub-pixel and third sub-pixel, another sub- repetitive unit Include third sub-pixel, the first sub-pixel and the second sub-pixel being arranged in order along the second direction or third sub-pixel, Two sub-pixels and the first sub-pixel；
Described two sub- repetitive units constitute two pixel units being disposed adjacent in a second direction, the sub- picture of arbitrary same color Element is in 2 times or 2N/ (N+1) times that the centre distance of second direction is its centre distance in a first direction；Alternatively, described two Sub- repetitive unit constitutes two pixel units being disposed adjacent along first direction, and the sub-pixel of arbitrary same color is in a first direction Centre distance be it at 2N/ (N+1) times of the centre distance of second direction；Wherein, N is the integer more than or equal to 1.
2. dot structure as described in claim 1, which is characterized in that described two sub- repetitive units constitute phase in a second direction When two pixel units of neighbour's setting, the sub-pixel of arbitrary same color the centre distance of second direction be its in a first direction 1 times or 4/3 times of centre distance；Described two sub- repetitive units constitute two pixel units being disposed adjacent along first direction When, the centre distance of the sub-pixel of arbitrary same color in a first direction is it at 1 times or 4/3 of the centre distance of second direction Times.
3. dot structure as claimed in claim 1 or 2, which is characterized in that a pixel unit in the sub- repetitive unit Arrangement after first direction overturning 180 degree is identical as one other pixel unit.
4. dot structure as claimed in claim 1 or 2, which is characterized in that first sub-pixel and the second sub-pixel are along institute State the size that the overall size of second direction is greater than or equal to the third sub-pixel along the second direction.
5. dot structure as claimed in claim 1 or 2, which is characterized in that in pixel unit in a line or same row One pixel arrangement point-blank, with the second pixel arrangement of the pixel unit in pixel unit in a line or same row On another straight line；Alternatively, being arranged alternately with the first sub-pixel of pixel unit in a line or same row and the second sub-pixel Point-blank.
6. dot structure as claimed in claim 1 or 2, which is characterized in that first sub-pixel, the second sub-pixel and The shape of three sub-pixels is triangle, quadrangle, pentagon, hexagon, one kind in octagon or its arbitrary combination.
7. dot structure as claimed in claim 1 or 2, which is characterized in that the shape of first sub-pixel and the second sub-pixel Shape is identical.
8. dot structure as claimed in claim 1 or 2, which is characterized in that first sub-pixel, the second sub-pixel and third Sub-pixel is respectively green sub-pixels, red sub-pixel and blue subpixels.
9. dot structure as claimed in claim 8, which is characterized in that the area of the blue subpixels is more than the red son The area of pixel and green sub-pixels.
10. a kind of OLED display, including dot structure as claimed in any one of claims 1-9 wherein.
CN201710774606.4A 2017-08-31 2017-08-31 Dot structure and OLED display Pending CN108511480A (en)

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US16/324,992 US11152432B1 (en) 2017-08-31 2018-08-02 Pixel structure, OLED display device and driving method
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EP18849577.4A EP3678182A4 (en) 2017-08-31 2018-08-02 Pixel structure, oled display device, and driving method
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