CN207068854U - Dot structure, the OLED display screen comprising the dot structure, evaporation mask plate - Google Patents
Dot structure, the OLED display screen comprising the dot structure, evaporation mask plate Download PDFInfo
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- CN207068854U CN207068854U CN201720467270.2U CN201720467270U CN207068854U CN 207068854 U CN207068854 U CN 207068854U CN 201720467270 U CN201720467270 U CN 201720467270U CN 207068854 U CN207068854 U CN 207068854U
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Abstract
The utility model provides a kind of dot structure, the OLED display screen comprising the dot structure, evaporation mask plate.The length-width ratio of the dot structure sub-pixel is set smaller than 1.5:1 (i.e. sub-pixel be shaped as square or close to square), it can ensure that opening is maximum, accordingly, in order to ensure sub-pixel for square or close square, traditional four pixel cells (12 sub-pixels) are converted into three pixel cells (9 sub-pixels), and, the luminous zone of the sub-pixel of same color is mutually staggered in adjacent odd-numbered line and even number line, the arrangement of staggering that is open is deposited on evaporation mask plate, the intensity of evaporation mask plate can be improved, avoid be deposited mask plate stick up by, the problems such as fracture, reduction evaporation film layer is dizzy to be opened, the defects of influences such as skew evaporation quality.Further, the first sub-pixel, the second sub-pixel and the 3rd sub-pixel shape and size all same, the interval being deposited on mask plate is identical, can further improve the intensity of evaporation mask plate.
Description
Technical field
Display technology field is the utility model is related to, more particularly to a kind of dot structure, includes the dot structure
OLED display screen, evaporation mask plate.
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, OLED Display Techniques without backlight,
With self luminous characteristic.OLED uses relatively thin organic material film laye and glass substrate, when have electric current by when, organic material
It will light.Therefore OLED display screens can save significantly on electric energy, can be made lighter and thinner, be resistant to than LCD display wider
The temperature change of scope, and visible angle is bigger.OLED display screen is expected to turn into the FPD skill of future generation after LCD
Art, it is one of the most technology that attracted attention in current flat panel display.
The colorization method of OLED screen body has many kinds, now more ripe and the volume production that succeeded OLED colorizations
Technology is mainly OLED evaporation coating techniques, and it uses traditional RGB Stripe (RGB stripe shape) arrangement mode to be deposited.Wherein
Picture effect most preferably side-by-side (juxtaposition) mode.Side-by-side modes are in a pixel (Pixel)
In the range of have three sub-pixels (sub-pixel) of red, green, blue (R, G, B), each sub-pixel is rectangle, and is each had
Independent organic light emission component, it is to pass through fine metal mask version (Fine Metal using evaporation film-forming technology
Mask, FMM) corresponding location of pixels forms organic emitting components on array (array) substrate, and the fine metal is covered
Mask plate is often referred to simply as deposited in film version.Make high PPI's (Pixel Per Inch, the number of pixels that per inch is possessed)
The technology of OLED display screen focuses on fine and the FMM of good mechanical stability and the arrangement mode of pixel.
Fig. 1 is a kind of pixel arrangement schematic diagram of OLED display screen in the prior art.Industry is generally by this kind of dot structure
Referred to as Real RGB.As shown in figure 1, the OLED display screen uses the juxtaposed mode of pixel, each pixel cell Pixel includes R
Subpixel area 101, G sub-pixel region 103 and B subpixel areas 105, wherein, R subpixel areas 101 light including R
Area 102 and R non-light-emitting areas, G sub-pixel region 103 include G luminous zones 104 and G non-light-emitting areas, B subpixel areas 105
Including B luminous zones 106 and B non-light-emitting areas.R, G, B sub-pixel shown in Fig. 1 are rectangle and luminous zone area equation,
And R, G, B sub-pixel are arranged in a linear.In the luminous zone of each subpixel area, including negative electrode, anode and electroluminescent
Layer (be also known as organic emission layer), wherein, electroluminescence layer between negative electrode and anode, for produce predetermined color light with
Realize display.When preparing display screen, it usually needs using evaporation process three times with respectively in the hair of corresponding color pixel region
The electroluminescence layer of corresponding color is formed in light area.
FMM shown in dot structure generally use Fig. 2 of OLED display screen shown in Fig. 1 is deposited, and this kind of FMM includes
Blocked area 107 and several evaporation openings 108, two adjacent blocked areas being deposited between opening 108 of same row are referred to as
Connecting bridge (bridge).Because the sub-pixel of same color in Fig. 1 arrangement mode is that upper and lower contraposition is set, therefore FMM
Evaporation opening 108 must also align setting, and this causes the connecting bridge that longitudinally adjacent two are deposited between opening 108
(bridge) there is the risk of broken string.Also, FMM evaporation opening 108 needs to correspond to predetermined location of pixels, according to existing
A kind of this pixel arrangement mode, FMM and sub-pixel area can reduce to bit space, it is possible to produce lack lacking for color or colour mixture
Fall into.
Utility model content
The purpose of this utility model is to provide a kind of dot structure driving method, to solve to ask present in prior art
Topic.
In order to solve the above technical problems, the utility model provides a kind of dot structure, including multiple pixel columns, each pixel
Row includes the first sub-pixel, the second sub-pixel and the 3rd sub-pixel for being repeated in arrangement, identical in adjacent two odd-numbered lines
It is facing each other between the luminous zone of the sub-pixel of color, in two adjacent even number lines the luminous zone of the sub-pixel of same color it
Between it is facing each other, the luminous zone of the sub-pixel of same color is mutually staggered in adjacent odd-numbered line and even number line, it is described first son
The shape of pixel, the second sub-pixel and the 3rd sub-pixel is square and length-width ratio is less than 1.5:1.
Optionally, in described dot structure, the shape of first sub-pixel, the second sub-pixel and the 3rd sub-pixel
It is identical with size, with the on the first sub-pixel and the boundary line of the second sub-pixel and adjacent lines adjacent in a line the most adjacent 3rd
The center line that sub-pixel extends along column direction overlaps, and first sub-pixel, the second sub-pixel and the 3rd sub-pixel are square
Or rectangle.
Optionally, in described dot structure, each first sub-pixel, the second sub-pixel and the 3rd sub-pixel
In, adjacent two sides are connected by some camber lines and/or some straight lines.
Optionally, in described dot structure, the color of first sub-pixel, the second sub-pixel and the 3rd sub-pixel
One kind in respectively red, blueness and green, and first sub-pixel, the second sub-pixel, the color of the 3rd sub-pixel are mutual
Differ.
The utility model also provides a kind of OELD display screens, includes dot structure as described above.
The utility model provides a kind of evaporation mask plate again, includes the evaporation opening of multiple array arrangements, adjacent two
Evaporation opening in odd-numbered line is facing each other, the odd-numbered line facing each other, adjacent of the evaporation opening in two adjacent even number lines
Mutually stagger with the evaporation opening in even number line, the evaporation opening is shaped as square and length-width ratio less than 1.5:1.
Optionally, in described evaporation mask plate, the evaporation opening is square or rectangular.The evaporation opening
In adjacent two sides pass through some camber lines and/or some straight lines connect.
Compared with prior art, the utility model by the length-width ratio of sub-pixel by being set smaller than 1.5:1 (i.e. sub- picture
Element is shaped as square or close square), it is ensured that opening is maximum, accordingly, in order to ensure that sub-pixel is square
Or close square, traditional four pixel cells (12 sub-pixels) are converted into three pixel cells (9 sub-pixels), and
And the luminous zone of the sub-pixel of same color is mutually staggered in adjacent odd-numbered line and even number line, the evaporation on mask plate is deposited
Opening staggers arrangement, can improve the intensity of evaporation mask plate, avoid being deposited mask plate stick up by, be broken the problems such as, subtract
It is deposited that film layer is dizzy the defects of quality is deposited in influence such as to open, offset less.Further, the first sub-pixel, the second sub-pixel and the 3rd
Sub-pixel shape and size all same, the interval being deposited on mask plate is identical, can further improve the intensity of evaporation mask plate.
Brief description of the drawings
Fig. 1 is a kind of dot structure schematic diagram in the prior art.
Fig. 2 is a kind of FMM of corresponding diagram 1 schematic diagram.
Fig. 3 is a kind of dot structure schematic diagram in the embodiment of the utility model one.
Fig. 4 is a kind of FMM of corresponding diagram 3 schematic diagram.
Fig. 5 is another dot structure schematic diagram in the embodiment of the utility model one.
Fig. 6 is another dot structure schematic diagram in the embodiment of the utility model one.
Fig. 7 is another dot structure schematic diagram in the embodiment of the utility model one.
Fig. 8 is a kind of dot structure schematic diagram in the embodiment of the utility model one.
Fig. 9 is the dot structure schematic diagram that gate line and data wire are connected with the embodiment of the utility model one.
Figure 10 is the equivalent schematic of a theory pixel cells group in the embodiment of the utility model one.
Figure 11 is the equivalent schematic of four theory pixel cells groups in the embodiment of the utility model one.
Figure 12 is the schematic diagram that a kind of dot structure undertakes color component in the embodiment of the utility model one.
Figure 13 is the equivalent schematic of dot structure in Figure 12.
Figure 14 is the schematic diagram that another dot structure undertakes color component in the embodiment of the utility model one.
Figure 15 is the equivalent schematic of dot structure in Figure 14.
Embodiment
As stated in the Background Art, the technology for making high PPI OLED display screen focuses on fine and good mechanical stability
FMM and pixel arrangement mode.FMM be deposited pixel in key element, should stick up as little as possible by, fracture etc. ask
Topic, avoids causing being deposited that film layer is dizzy the defects of quality is deposited in influence such as opens, offset.And the arrangement mode of pixel and sub-pixel is to determine
Determine whether FMM easily occurs warpage and major cause of failure.That is, the arrangement mode of pixel and sub-pixel largely determines
FMM mechanical performance, FMM mechanical performance largely determine the quality of evaporation.FMM as shown in Figure 2 is in a certain face
The position correspondence of the sub-pixel of color sets evaporation opening, due to the sub-pixel of same color in Fig. 1 Real RGB arrangement modes
It is that upper and lower contraposition is set, therefore FMM evaporation opening 108 must also align setting, mask plate makes and the difficulty of evaporation process
Spend larger.
Based on the studies above, the utility model provides a kind of dot structure of OLED display screen, and the dot structure includes more
Individual pixel column (also referred to as arranging), each pixel row (column) include multiple sub-pixels, and the multiple sub-pixel includes weighing successively
The first sub-pixel, the second sub-pixel and the 3rd sub-pixel of multiple bank row, first sub-pixel, the second sub-pixel and the 3rd sub- picture
The shape of the luminous zone of element is that length-width ratio is less than 1.5：1 square, the son of same color in two adjacent odd number row (column)
Arrangement facing each other between the luminous zone of pixel, in adjacent two even number row (column) the luminous zone of the sub-pixel of same color it
Between be also arrangement facing each other, also, in adjacent odd number row (column) and even number row (column) the sub-pixel of same color it is luminous
Area is staggeredly arranged.The length-width ratio of sub-pixel the ratio between (long edge lengths with bond length) is set smaller than by the utility model
1.5:1 (i.e. sub-pixel be shaped as square or close to square), it is ensured that opening is maximum, accordingly, in order to ensure son
Traditional four pixel cells (12 sub-pixels) are converted into three pixel cells (9 by pixel for square or close to square
Individual sub-pixel).Also, the luminous zone of the sub-pixel of same color is mutually staggered in adjacent odd-numbered line and even number line, and evaporation is covered
Evaporation opening in film version staggers arrangement, can improve the intensity of evaporation mask plate, avoid being deposited mask plate stick up by, break
The problems such as splitting, the evaporation film layer dizzy the defects of influence evaporation quality such as opening, offset is reduced, reduce mask plate and make and evaporation process
Difficulty.
Therefore, the utility model also provides a kind of dot structure driving method, image to be shown is divided into some reasons
By pixel cell group, each theory pixel cells group includes four benchmark pixel units, and each benchmark pixel unit includes three
The sub-pixel of Alignment, determine the color component of each sub-pixel in theory pixel cells group；The dot structure is divided
For some object pixel unit groups, each object pixel unit group is equivalent to a theory pixel cells group, each object pixel
Unit group includes three object pixel units, and each object pixel unit includes three sub-pixels, according to theory pixel cells group
In the color component of each sub-pixel determine the color component of each sub-pixel in object pixel unit group, wherein, object pixel
The color component of at least one sub-pixel is the color of two sub-pixels of corresponding color in theory pixel cells group in unit group
The maximum or average value of component.With this, on the basis of by four pixel cell boil down tos, three pixel cells, picture is realized
The driving of plain structure.
The utility model is described in further detail below in conjunction with accompanying drawing.According to following explanation and claims, sheet
The advantages of utility model and feature will become apparent from.
Fig. 3 is the pixel arrangement schematic diagram of OLED display screen in the embodiment of the utility model one.Wherein, X-direction refers to often
The bearing of trend of one pixel column, also known as line direction (transverse direction)；Y-direction refers to the direction perpendicular with X-direction, also referred to as arranges
Direction (longitudinal direction).When the luminous zone size in the row direction of sub-pixel is less than the size on column direction, column direction is referred to as
The length direction of sub-pixel, line direction are referred to as the width of sub-pixel, and " length of sub-pixel " refers to the luminous of sub-pixel
Size of the area on the column direction, " width of sub-pixel " refer to size of the luminous zone of sub-pixel on the line direction.Group
When the size of the luminous zone of pixel in the row direction is more than the size on column direction, line direction is referred to as the length side of sub-pixel
To column direction is referred to as the width of sub-pixel, and " length of sub-pixel " refers to the luminous zone of sub-pixel on the line direction
Size, " width of sub-pixel " refers to size of the luminous zone of sub-pixel on the column direction." length-width ratio of sub-pixel " then
Refer to the ratio between full-size in the full-size and width of the luminous zone of sub-pixel in the longitudinal direction.
In addition, being simplicity, a part for OLED display screen is only indicated in accompanying drawing, pixel quantity is unlimited in actual product
In this, the quantity of pixel cell can need to make corresponding change according to actual displayed.The first row described in the utility model, second
Row, first row, secondary series ... be for illustrate the utility model and for normative reference, to be not necessarily referring to actual production shown in scheming
Row and column in product.
As shown in figure 3, the dot structure 300 of OLED display screen includes multiple pixel columns, each height in the dot structure
Pixel is in the arrangement mode of juxtaposition (side-by-side), and each pixel column includes the first sub-pixel for being repeated in arrangement
301st, the second sub-pixel 303 and the 3rd sub-pixel 305, in adjacent two odd-numbered lines the luminous zone of the sub-pixel of same color it
Between arrangement facing each other, between the luminous zone of the sub-pixel of same color be also cloth facing each other in adjacent two even number lines
Put, but the arrangement that misplaced in odd-numbered line and even number line between the luminous zone of the sub-pixel of same color.In other words, in all odd-numbered lines
Sub-pixel arrangement mode it is identical, the arrangement mode of the sub-pixel in the even number line is also identical, but odd-numbered line and even number
The luminous zone of the sub-pixel of row same color not corresponds to up and down, and is offset from each other (displacement) arrangement.
In the present embodiment, the shape of the luminous zone of the first sub-pixel 301, the second sub-pixel 303 and the 3rd sub-pixel 305 and
Size all same, with most adjacent in the first sub-pixel 301 adjacent in a line, the boundary line of the second sub-pixel 303 and adjacent lines
The center line that extends along column direction of luminous zone of the 3rd sub-pixel 305 overlap, with this so that RGB sub-pixels are evenly distributed, tool
There is preferable display effect.Detailed, (edge of center line 305 ' of center line 305 ' that the 3rd sub-pixel 305 extends along column direction
Column direction extends and the 3rd sub-pixel 305 is divided into two parts by the center line 305 ') and the first sub-pixel 301 and the second sub- picture
The boundary line of element 303 overlaps.In other words, in above-mentioned arrangement mode, the sub-pixel (such as first of odd-numbered line and even number line same color
Sub-pixel 301) 1.5 arrangement of subpixels of dislocation, i.e. two sub-pixels of the immediate same color in position in adjacent rows
Distance in the direction of the width between luminous class mark is the width of 1.5 sub-pixels, with the immediate phase in position in a line
The distance between midpoint of two sub-pixels with color is the width for being separated by 3 sub-pixels.It is understood that due to same
The first sub-pixel 301 and the second sub-pixel 303 in pixel cell share a line, and the shared side is the first sub-pixel
301 and second sub-pixel 303 boundary line, still, " border " or " boundary line " herein is not limited to " border " of entity
Or " boundary line ", and " border " or " boundary line " virtual between two pixel sub-pixels can be referred to.It should be noted that to the greatest extent
Manage the edge of the 3rd sub-pixel 305 most adjacent in the first adjacent sub-pixel 301, the boundary line of the second sub-pixel 303 and adjacent lines
When the center line of column direction extension overlaps, arrangement effect is preferable, but, actually adjacent odd-numbered line and even number line same color
The size that sub-pixel staggers is not strictly limited to 1.5 sub-pixels, for example in 1.4~1.6 sub- pixel coverages is still fair
Perhaps.
First sub-pixel 301, the second sub-pixel 303, the color of the 3rd sub-pixel 305 are respectively red, green, blue
Color any of which, and the first sub-pixel 301, the second sub-pixel 303, the color of the 3rd sub-pixel 305 is different.Such as Fig. 3
In, the first sub-pixel 301 is green (G) sub-pixel, the second sub-pixel 303 is blue (B) sub-pixel, the 3rd sub-pixel 305 is
Red (R) sub-pixel, in this way, in odd-numbered line, cycle arrangement in the way of multiple sub-pixels are by G, B, R, G, B, R ..., even number
In row, multiple sub-pixels by R, G, B, R, G, B ... in the way of cycle arrangement.Certainly, the first sub-pixel 301 can be indigo plant
Sub-pixels or red sub-pixel, the second sub-pixel 303 can be green sub-pixels or red sub-pixel, the 3rd sub-pixel 305
Can be green sub-pixels or blue subpixels, as long as the first sub-pixel 301, the second sub-pixel 303, the 3rd sub-pixel 305
Color is different.
First sub-pixel 301, the second sub-pixel 303, the 3rd sub-pixel 305 include luminous zone (viewing area) and
Non-light-emitting area (non-display area), the luminous zone of each sub-pixel include negative electrode, anode and electroluminescence layer and (are also known as organic hair
Penetrate layer), the electroluminescence layer is shown between negative electrode and anode for producing predetermined color light with realizing.This implementation
In example, first sub-pixel 301 includes G luminous zones 302, and the second sub-pixel 303 includes B luminous zones 304, the 3rd sub-pixel
305 include R luminous zones 306, it usually needs using evaporation process three times with respectively in the luminous zone of corresponding color pixel region
Form the electroluminescence layer of corresponding color (such as red, green or blueness).
Fig. 4 is a kind of FMM of dot structure shown in corresponding diagram 3 schematic diagram.As shown in figure 4, metal mask plate 400 has
Multiple evaporation openings 408, evaporation opening 408 correspond to the sub-pixel of same color (such as green) in Fig. 3.Due to odd-numbered line
Not corresponded to up and down with the pixel of even number line same color, and be offset from each other (displacement) arrangement, thus, to form sub-pixel
Evaporation mask plate (FMM) on evaporation opening and stagger arrangement.From fig. 4, it can be seen that due to being staggeredly arranged, it is adjacent
Closest two evaporation openings the distance between 408 are increased in two rows, can be increased FMM intensity, be kept away as far as possible
Exempt from the problems such as FMM is stuck up by, fracture, reduce that evaporation film layer is dizzy the defects of quality is deposited in influence such as to open, offset.
With continued reference to shown in Fig. 3, in the present embodiment, the first sub-pixel 301, the second sub-pixel 303 and the 3rd sub-pixel
305 luminous zone is quadrangle, and the length-width ratio the ratio between (long edge lengths with bond length) of the luminous zone of each sub-pixel is small
In 1.5:1, i.e. L2：L1 ＜ 1.5:1.The length-width ratio of sub-pixel is set smaller than 1.5:1, it is ensured that opening is maximum, accordingly
, in order to ensure sub-pixel for square or close to square, by four pixel cells in traditional Real RGB arrangement modes
Be converted into three pixel cells of the present embodiment, i.e. in the pel array of the 3*3 shown in Fig. 3, the size of line direction equivalent to
The size of 2 pixel cells (2pixels) in Real RGB arrangement modes, the size of column direction are also arranged equivalent to Real RGB
The size of 2 pixel cells in mode, in other words, 9 sub-pixels are equivalent to 12 sub-pixels in the prior art in the present embodiment.
Preferably, the luminous zone of first sub-pixel 301, the second sub-pixel 303 and the 3rd sub-pixel 305 is pros
Shape, i.e. the length-width ratio (L2 of the luminous zone of each sub-pixel：L1 it is) 1:1, accordingly, the evaporation opening 408 in Fig. 4 is also
Square.Inventor, which studies, to be found, the length-width ratio of the luminous zone of sub-pixel is closer to 1:The length-width ratio of 1, FMM evaporation opening
Closer to 1:1, then, FMM is less susceptible to that warpage occurs and fracture, FMM intensity are higher.
It should be understood, however, that the shape of the luminous zone of the first sub-pixel 301, the second sub-pixel 303 and the 3rd sub-pixel 305
Shape is not limited to square, can also be that length-width ratio is less than 1.5:1 rectangle, as shown in figure 5, the first sub-pixel 301,
The L2 of two sub-pixels 303 and the 3rd sub-pixel 305 is more than L1, wherein, the length-width ratio (L2 of rectangle sub-pixel：L1) can be
1.1:1、1.2:1、1.3:1、 1.4:1 etc., as long as less than 1.5:1 can obtain preferable effect.
Further it will be understood that in actual production, the true forms (and size) of various products and design shape (and
Size) between allow certain deviation be present.Typically, as long as the true form (and size) of product permits in design shape (and size)
Perhaps, can be to reach requirement in deviation range.Such as first sub-pixel 301, the second sub-pixel 303 and the 3rd sub- picture
The shape of the luminous zone of element 305 can also be class square or rectangle like, such as approximate rectangle or approximation are square
Shape it is trapezoidal, such as, can be isosceles trapezoid or non-isosceles trapezoid, can be trapezoid, inverted trapezoidal, be rotated by 90 ° to the left
It is trapezoidal or be rotated by 90 ° to the right trapezoidal.In a preferred approach, it is isosceles trapezoid that this is trapezoidal, and the upper bottom edge of the isosceles trapezoid is with
The dimension difference on base is less than the 10% of bottom edge lengths, also, the waist of the isosceles trapezoid and the angle of upper bottom edge are more than 90 degree
And less than 100 degree, and, the waist of the isosceles trapezoid and the angle of bottom are more than 80 degree and less than 90 degree, so, the first sub- picture
The shape of the luminous zone of plain 301, second sub-pixel 303 and the 3rd sub-pixel 305 is still generally rectangular shaped (in the deviation model of permission
In enclosing), it can still obtain preferably arrangement effect.Further, when the first sub-pixel 301, the second sub-pixel 303 and the 3rd sub- picture
When the shape of luminous zone of element 305 is trapezoid or inverted trapezoidal, the average of upper bottom edge length and the bottom length of side and it is trapezoidal it is high this
Maximum in two sizes is regarded as the size of trapezoidal length direction, average and trapezoidal height of the upper bottom edge length with the bottom length of side
In minimum value be then regarded as the size of trapezoidal width, also, the size of trapezoidal length direction and trapezoidal width side
To size ratio be less than 1.5.
On the other hand, as previously described, it is recognized that although the first sub-pixel 301, the second sub-pixel 303 and the 3rd sub- picture
The luminous zone of element 305 is shaped as best results during square, but in actual production, it is ideal may not can to obtain corner
Square, have some appropriate deformations in allowed limits.Such as adjacent two sides 3021,3022 can not be as
Fig. 3 show be directly connected to and be mutually perpendicular to or arc connection (adjacent two sides 3021,3022 pass through curved line
Section 3023 connects), i.e. square corner arc, as shown in Figure 6.For another example, adjacent two sides 3021,3022 also may be used
To be connected by straight line section 3024 so that it is octagon that the quadrangle, which is expanded, as shown in fig. 7, only on the whole still
It is that length-width ratio is less than 1.5：1 it is square.Certainly, adjacent two sides 3021,3022 can also be connected by two straightways,
So that it is dodecagon that the quadrangle, which is expanded,.In a word, as long as the first sub-pixel 301, the second sub-pixel 303 and the 3rd sub-pixel
The shape of 305 luminous zone is square on the whole, and the square length-width ratio is less than 1.5, and mesh of the present utility model can be achieved
's.
In addition, according to actual design and production needs, dot structure shown in Fig. 4 can be rotated by 90 ° to the left or to the right,
It is of course also possible to it is rotation 180 degree.For example be rotated by 90 ° Fig. 4 to the left, then obtain dot structure as shown in Figure 8.Such as Fig. 8
Shown, the dot structure includes multiple pixel columns, and each pixel column includes being repeated in the first sub-pixel 301 of arrangement, the
Two sub-pixels 303 and the 3rd sub-pixel 305, in adjacent two odd columns between the luminous zone of the sub-pixel of same color mutually
Face arranges, between the luminous zone of the sub-pixel of same color is also arrangement facing each other in adjacent two even columns, but very
Misplace arrangement in ordered series of numbers and even column between the luminous zone of the sub-pixel of same color.In other words, the sub- picture in all odd columns
The arrangement mode of element is identical, and the arrangement mode of the sub-pixel in the even column is also identical, but odd column is identical with even column
The luminous zone of the sub-pixel of color not corresponds to up and down, and is offset from each other (displacement) arrangement.Compared with Fig. 4, row in Fig. 8 and
Column direction is exchanged, and but, the length-width ratio of the luminous zone of each sub-pixel is still less than 1.5:1, preferably length-width ratio is
1:The length-width ratio of 1, FMM evaporation opening is closer to 1:1, then, FMM is less susceptible to that warpage and fracture, FMM intensity occurs
It is higher.
According to the another aspect of the present embodiment, a kind of OLED display screen is also provided, any of the above-described kind of pixel knot can be used
Structure.Exemplified by using the dot structure 300 shown in Fig. 3, each pixel column connects a gate line in the dot structure 300, often
Individual pixel column connects a data line.As shown in figure 9, multiple pixel columns connect respectively gate lines G 1, G2, G3 ..., multiple pictures
Element row connect respectively gate line S1, S2, S3 ....Further, due to odd-numbered line and even number line phase in the dot structure 300
Luminous zone with the sub-pixel of color is mutually staggered, thus data wire can be in bending.
With continued reference to shown in Fig. 9, the dot structure of the OLED display screen includes some object pixel unit group P0, each mesh
Mark pixel cell group P0 is equivalent to a theory pixel cells group in Real rgb pixel structures.Each object pixel unit group
P0 includes three object pixel units P1, P2, P3, and each object pixel unit includes 3 sub-pixels.Three object pixel units
In, point-blank, the 3rd pixel cell P3 is arranged for first pixel cell P1 and second pixel unit P2 Alignments
It is listed on another straight line.Sub-pixel distribution triangular in shape in first pixel cell P1 and second pixel unit P2, the
Sub-pixel in three pixel cell P3 is linearly distributed, i.e. pixel cell P1, P2 are triangular construction, and pixel cell P3 is
Rectangular configuration.
Here, each object pixel unit group P0 includes 9 sub-pixels, so each object pixel unit group P0 connections
3 gate lines and 3 data lines.And in traditional Real RGB, with reference to shown in Figure 10, each theory pixel cells group includes
4 benchmark pixel units, each benchmark pixel unit include 3 sub-pixels, i.e. each theory pixel cells group includes 12
Sub-pixel, connect 2 gate lines and 6 data lines.By contrast, the dot structure of the present embodiment is although the gate line of connection
Quantity it is more compared with Real RGB gate line quantity (for 1.5 times of the gate line quantity of Real rgb pixel structures), but its connect
The data wire quantity connect is few compared with Real RGB data wire quantity (for the 50% of the data wire quantity of Real rgb pixel structures),
The signal wire quantity of display screen integrated connection tails off.
The present embodiment is directed to above-mentioned dot structure, also provides a kind of driving method, comprises the following steps：
One image to be shown is divided into some theory pixel cells groups, each theory pixel cells group includes four battle arrays
The benchmark pixel unit of column distribution, each benchmark pixel unit include the sub-pixel of three Alignments, and determine theoretical pixel
The color component of each sub-pixel in unit group；And
Dot structure is divided into some object pixel unit groups, each object pixel unit group is equivalent to a theoretical picture
Plain unit group, each object pixel unit group include the object pixel unit of three array distributions, each object pixel unit bag
Three sub-pixels are included, and are determined according to the color component of theoretical sub-pixel in the theory pixel cells group in object pixel unit group
The actual color component undertaken of each sub-pixel；Wherein, the color component of at least one sub-pixel is in object pixel unit group
The maximum or average value of the color component of two sub-pixels of corresponding color in theory pixel cells group.
A kind of driving method in the present embodiment is described in detail with reference to Figure 10 and Figure 11.
When showing an image, image to be shown is first divided into by some theoretical pixel lists according to Real rgb pixels structure
Tuple, then the dot structure is divided into some object pixel unit groups, each object pixel unit group is equivalent to a reason
By pixel cell group.
Figure 10 is the equivalent schematic of a theory pixel cells group in the embodiment of the utility model one.Wherein, left figure is
The schematic diagram of a theory pixel cells group in Real rgb pixel structures, right figure be the present embodiment dot structure in a mesh
Mark the schematic diagram of pixel cell group.
As shown in the left figure in Figure 10, theory pixel cells group include four benchmark pixel unit P1 ', P2 ', P3 ',
P4 ', each benchmark pixel unit include R sub-pixels, G sub-pixel, the B sub-pixels of three Alignments, benchmark pixel unit
Arrangement of subpixels in P1 ', P2 ' is in a line, and benchmark pixel unit P3 ', P4 ' arrangement of subpixels are on another row.Benchmark
Pixel cell P1 ' is controlled by gate lines G 1 ' and data wire S1 ', S2 ', S3 ', and benchmark pixel unit P2 ' is by the sum of gate lines G 1 '
According to line S4 ', S5 ', S6 ' controls, benchmark pixel unit P3 ' is controlled by gate lines G 2 ' and data wire S1 ', S2 ', S3 ', benchmark
Pixel cell P4 ' is controlled by gate lines G 2 ' and data wire S4 ', S5 ', S6 '.As can be seen that four benchmark pixel unit P1 ',
P2 ', P3 ', P4 ' are rectangular configuration.
As shown in the right figure in Figure 10, object pixel unit group includes three object pixel units P1, P2, P3, each mesh
Marking pixel cell includes R sub-pixels, G sub-pixel, the B sub-pixels of three Alignments.Object pixel unit P1 is by gate line
G1, G2 and data wire S1, S2 control, object pixel unit P2 are controlled by gate lines G 1, G2 and data wire S2, S3, object pixel
Unit P3 is controlled by gate lines G 3 and data wire S1, S2, S3.As can be seen that object pixel unit P1, P2 are triangular
Make, object pixel unit P3 is rectangular configuration.
Determine in the theory pixel cells group after the color component of each sub-pixel, to map that to goal theory pixel
In unit.Specifically, in Figure 10, object pixel unit P1 undertakes benchmark pixel unit P1 ' color component, object pixel unit
P2 undertakes benchmark pixel unit P2 ' color component, and object pixel unit P3 undertakes benchmark pixel unit P3 ' and P4 ' color
Component.Detailed, pixel cell P3 ' and P4 ' on the basis of the color component of at least one sub-pixel in object pixel unit P3
In two corresponding colors sub-pixel color component maximum or average value.
In Figure 11, upper figure is the schematic diagram of four theory pixel cells groups in Real rgb pixel structures, and figure below is this reality
Apply the schematic diagram of four object pixel unit groups in the dot structure of example.
As shown in the upper figure in Figure 11, in theory pixel cells group, by the benchmark pixel unit P1 ' of the first row first row
Red sub-pixel be designated as R11, green sub-pixels are designated as G11, and blue subpixels are designated as B11；By the benchmark of the first row secondary series
Red sub-pixel in pixel cell P2 ' is designated as R12, and green sub-pixels are designated as G12, and blue subpixels are designated as B12；By the second row
Red sub-pixel in the benchmark pixel unit P3 ' of first row is designated as R21, and green sub-pixels are designated as G21, and blue subpixels are designated as
B21；Red sub-pixel in the benchmark pixel unit P4 ' of second row secondary series is designated as R22, green sub-pixels are designated as G22, blue
Sub-pixels are designated as B22, by that analogy.
During actual displayed, object pixel unit P1 is equivalent to benchmark pixel unit P1 ', and red is sub in object pixel unit P1
Pixel undertakes the color component of red sub-pixel R11 in benchmark pixel unit P1 ', and object pixel unit P1 Green sub-pixels are held
Benchmark pixel unit P1 ' Green sub-pixels G11 color component is carried on a shoulder pole, blue subpixels undertake benchmark in object pixel unit P1
The color component of blue subpixels B11 in pixel cell P1 '.Meanwhile object pixel unit P2 is equivalent to benchmark pixel unit
Red sub-pixel undertakes the color component of red sub-pixel R12 in benchmark pixel unit P2 ', mesh in P2 ', object pixel unit P2
Mark pixel cell P2 Green sub-pixels undertake benchmark pixel unit P2 ' Green sub-pixels G12 color component, object pixel
Blue subpixels undertake the color component of the blue subpixels B12 in benchmark pixel unit P2 ' in unit P2.
Because three pixel cells need to undertake in benchmark pixel unit group four pixel cells in object pixel unit group
Color component, so, object pixel unit P3 is equivalent to benchmark pixel unit P3 ' and P4 '.A kind of mode is benchmark pixel
The maximum of the color component of the sub-pixel of two corresponding colors in unit P3 ' and P4 ', corresponding color in object pixel unit P3
The color component of sub-pixel be equivalent to the maximum, such as, color component of red sub-pixel etc. in object pixel unit P3
Maximum, object pixel unit P3 Greens in two red sub-pixels R21, R22 in pixel cell P3 ' and P4 ' on the basis of effect
The color component of sub-pixel is equivalent in benchmark pixel unit P3 ' and P4 ' maximum, mesh in two green sub-pixels G21, G22
The color component of blue subpixels is equivalent to two blue subpixels in benchmark pixel unit P3 ' and P4 ' in mark pixel cell P3
Maximum in B21, B22.Another way is to obtain the face of the sub-pixel of two corresponding colors in benchmark pixel unit P3 ', P4 '
The average value of colouring component, the color component of the sub-pixel of corresponding color is equivalent to the average value in object pixel unit P3.
Above-mentioned driving process can be controlled by the driving chip (Drive IC) of display screen, compare the number of two sub-pixels by it
According to the size of voltage to judge the size of the color component of two sub-pixels, so as to which control targe pixel cell sub-pixel is to manage
Shown by the maximum in the color component of two sub-pixels of corresponding color in pixel cell group.Similarly, can also be by the drive
Dynamic chip calculates the average value of the color component of two sub-pixels, so as to which control targe pixel cell sub-pixel is with theoretical pixel
The average value of the color component of two sub-pixels of corresponding color is shown in unit group.
Further, as shown in figure below in Figure 11, the construction phase of two adjacent object pixel unit groups on column direction
Together, it is identical after the construction upset 180 degree of two object pixel unit groups adjacent on line direction, i.e. an object pixel list
The pixel cell (such as P1 and P2) of two triangular constructions of tuple is up, the pixel cell (such as P3) of rectangular configuration exists
Lower section, and the pixel cell of two triangular constructions in object pixel unit group adjacent on its line direction is in lower section, rectangular
The pixel cell of shape construction is then up.Consequently, it is possible to, it is necessary to be equivalent to two reference images in adjacent object pixel unit group
The sub-pixel of the object pixel unit of plain unit is distributed in do not go together on.
The utility model can also do some changes for the construction of pixel cell.With reference to Figure 12 and Figure 13 to this reality
Another driving method in example is applied to describe in detail.
As shown in figure 13, in object pixel unit group, the sub-pixel of the row of centre one and the row of centre one needs to undertake two bases
The color component of corresponding color sub-pixel in quasi- pixel cell, export the face of corresponding color sub-pixel in two benchmark pixel units
The maximum or average value of colouring component.
Specifically, the color component of object pixel unit P1 Green sub-pixels be equivalent to it is green in benchmark pixel unit P1 '
Sub-pixels G11 color component, the color component of red sub-pixel is equivalent to benchmark pixel unit in object pixel unit P1
The maximum or average value of the color component of two red sub-pixels R11, R12 in P1 ', P2 ', blueness in object pixel unit P1
The color component of sub-pixel is equivalent to two blue subpixels B11, B21 color component in benchmark pixel unit P1 ', P3 '
Maximum or average value.The color component of red sub-pixel is equivalent to red in benchmark pixel unit P3 ' in object pixel unit P2
Sub-pixels R21 color component, the color component of object pixel unit P2 Green sub-pixels are equivalent to benchmark pixel unit
P3 ', P4 ' Green sub-pixels G21, G22 color component maximum or average value, the sub- picture of blueness in object pixel unit P2
The color component of element is equivalent to the maximum of two blue subpixels B21, B22 color component in benchmark pixel unit P3 ', P4 '
Value or average value.The color component of red sub-pixel is equivalent in benchmark pixel unit P4 ' red son in object pixel unit P3
Pixel R22 color component, the color component of object pixel unit P3 Green sub-pixels are equivalent in benchmark pixel unit P2 '
Green sub-pixels G12 color component, the color component of blue subpixels is equivalent to benchmark pixel list in object pixel unit P3
The maximum or average value of two blue subpixels B11, B22 color component in first P1 ', P4 '.Consequently, it is possible to each target
In pixel cell group, need the sub-pixel for undertaking the color component of two benchmark pixel unit sub-pixels whole in object pixel unit
Body is distributed in crosswise.
Another driving method in the present embodiment is described in detail with reference to Figure 14 and Figure 15.
In Figure 14 and Figure 15, in object pixel unit group, a sub- picture in the pixel cell of only promising rectangular configuration
Element needs to undertake the color component of corresponding color sub-pixel in two benchmark pixel units, and the color component of the sub-pixel is two
The maximum or average value of the color component of corresponding color sub-pixel in benchmark pixel unit.
Specifically, in object pixel unit P1, the color components of green sub-pixels is equivalent to green in benchmark pixel unit P1 '
Sub-pixels G11 color component, the color component of red sub-pixel are equivalent to red sub-pixel in benchmark pixel unit P1 '
R11 color component, the color component of blue subpixels are equivalent to benchmark pixel unit P1 ' blue subpixels B11 color point
Amount.In object pixel unit P2, the color component of red sub-pixel is equivalent to red sub-pixel R12 in benchmark pixel unit P2 '
Color component, the color components of green sub-pixels is equivalent to benchmark pixel unit P2 ' Green sub-pixels G12 color point
Amount, the color component of blue subpixels are equivalent to the color component of blue subpixels B12 in benchmark pixel unit P2 '.
In object pixel unit P3, the color component of red sub-pixel is equivalent to a red in benchmark pixel unit P4 '
The color component of sub-pixel (such as R22), the color component of green sub-pixels are equivalent to green in benchmark pixel unit P3 '
The color component of pixel (such as G21), the color component of blue subpixels are then equivalent to two indigo plants in benchmark pixel unit P3 ', P4 '
The maximum or average value of the color component of sub-pixels B21, B22.
To sum up, the utility model is based on above-mentioned dot structure, it is proposed that a kind of matching image element driving method, will pass
The Real rgb pixel structures of system are compressed, and object pixel list is equivalent to by 4 pixel cells in theory pixel cells group
Three pixel cells (compression ratio 75%) in tuple, make the color component of at least one sub-pixel in object pixel unit group
The maximum or average value being equivalent in theory pixel cells group in the color component of two sub-pixels, so that object pixel list
At least one sub-pixel undertakes the function of two sub-pixels in theory pixel cells group in tuple.The image element driving method is especially suitable
For high PPI dot structures (PPI be more than 300), experiment shows, in the case that display screen PPI is higher the dot structure and its
The effect of driving method is better.
It should be noted that each embodiment is described by the way of progressive in this specification, each embodiment emphasis is said
Bright is all the difference with other embodiment, between each embodiment identical similar portion mutually referring to.
The utility model is described in detail above example, it should be appreciated that foregoing description is only new to this practicality
The description of type preferred embodiment, not to any restriction of the scope of the utility model, the ordinary skill people in the utility model field
Any change, the modification that member does according to the disclosure above content, belong to the protection domain of claims.
Claims (10)
1. a kind of dot structure, it is characterised in that including multiple pixel columns, each pixel column includes being repeated in the first of arrangement
Sub-pixel, the second sub-pixel and the 3rd sub-pixel, in adjacent two odd-numbered lines between the luminous zone of the sub-pixel of same color
It is facing each other, odd-numbered line facing each other, adjacent between the luminous zone of the sub-pixel of same color in two adjacent even number lines
Mutually stagger with the luminous zone of the sub-pixel of same color in even number line, first sub-pixel, the second sub-pixel and the 3rd son
The shape of pixel is square and length-width ratio is less than 1.5:1.
2. dot structure as claimed in claim 1, it is characterised in that first sub-pixel, the second sub-pixel and the 3rd son
The shape and size of pixel are identical.
3. dot structure as claimed in claim 1, it is characterised in that the first adjacent sub-pixel and the second sub- picture with a line
The boundary line of element overlaps with the center line that the 3rd sub-pixel most adjacent in adjacent lines extends along column direction.
4. dot structure as claimed any one in claims 1 to 3, it is characterised in that first sub-pixel, the second sub- picture
Element and the 3rd sub-pixel are square or rectangular.
5. dot structure as claimed any one in claims 1 to 3, it is characterised in that each first sub-pixel, second
In sub-pixel and the 3rd sub-pixel, adjacent two sides are connected by some camber lines and/or some straight lines.
6. dot structure as claimed any one in claims 1 to 3, it is characterised in that first sub-pixel, the second sub- picture
The color of element and the 3rd sub-pixel is respectively red, one kind in blue and green, and first sub-pixel, the second sub- picture
Element, the color of the 3rd sub-pixel are different.
7. a kind of OELD display screens, it is characterised in that include the dot structure as any one of claim 1 to 6.
8. one kind evaporation mask plate, it is characterised in that the evaporation opening including multiple array arrangements, in adjacent two odd-numbered lines
Evaporation opening it is facing each other, evaporation opening in two adjacent even number lines odd-numbered line and even number line facing each other, adjacent
In evaporation opening mutually stagger, the evaporation opening is shaped as square and length-width ratio less than 1.5:1.
9. evaporation mask plate as claimed in claim 8, it is characterised in that the evaporation opening is square or rectangular.
10. evaporation mask plate as claimed in claim 8, it is characterised in that two adjacent sides pass through in the evaporation opening
Some camber lines and/or the connection of some straight lines.
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| CN201720467270.2U CN207068854U (en) | 2017-04-28 | 2017-04-28 | Dot structure, the OLED display screen comprising the dot structure, evaporation mask plate |
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| CN201720467270.2U CN207068854U (en) | 2017-04-28 | 2017-04-28 | Dot structure, the OLED display screen comprising the dot structure, evaporation mask plate |
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| WO2018196496A1 (en) * | 2017-04-28 | 2018-11-01 | 昆山国显光电有限公司 | Pixel structure driving method |
| CN108807458A (en) * | 2017-04-28 | 2018-11-13 | 昆山国显光电有限公司 | Dot structure, the OLED display screen comprising the dot structure, vapor deposition mask plate |
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| WO2018196496A1 (en) * | 2017-04-28 | 2018-11-01 | 昆山国显光电有限公司 | Pixel structure driving method |
| CN108807458A (en) * | 2017-04-28 | 2018-11-13 | 昆山国显光电有限公司 | Dot structure, the OLED display screen comprising the dot structure, vapor deposition mask plate |
| JP2020504838A (en) * | 2017-04-28 | 2020-02-13 | クンシャン ゴー−ビシオノクス オプト−エレクトロニクス カンパニー リミテッドＫｕｎｓｈａｎ Ｇｏ−Ｖｉｓｉｏｎｏｘ Ｏｐｔｏ−Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．， Ｌｔｄ． | Pixel structure driving method |
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| CN108807458B (en) * | 2017-04-28 | 2024-01-23 | 昆山国显光电有限公司 | Pixel structure and OLED display screen comprising same |
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