CN109065592A - OLED abnormity screen, display device - Google Patents
OLED abnormity screen, display device Download PDFInfo
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- CN109065592A CN109065592A CN201810909784.8A CN201810909784A CN109065592A CN 109065592 A CN109065592 A CN 109065592A CN 201810909784 A CN201810909784 A CN 201810909784A CN 109065592 A CN109065592 A CN 109065592A
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- 239000003086 colorant Substances 0.000 claims abstract description 7
- 239000010409 thin film Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000011109 contamination Methods 0.000 description 53
- 238000000034 method Methods 0.000 description 12
- 239000000758 substrate Substances 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000003760 hair shine Effects 0.000 description 4
- 238000003491 array Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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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
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
- H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
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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
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Abstract
Present disclose provides a kind of OLED abnormity screen and display devices, belong to field of display technology.The OLED abnormity screen has viewing area, and the OLED abnormity screen includes the pixel in the viewing area array distribution, and each pixel includes the sub-pixel of at least three kinds colors；The sub-pixel of at least one color at least one described pixel of the fringe region of the viewing area includes multiple independently of each other by the sub-pixel unit of control hair same color light.The OLED abnormity screen can be avoided display exception, improve display effect.
Description
Technical field
This disclosure relates to field of display technology more particularly to a kind of OLED abnormity screen, display device.
Background technique
With the progress of display technology, abnormity wearing product is able to apply rapidly and promote.Abnormity wearing product is usually answered
With the special-shaped display panel with part curved edge or whole curved edges.
Special-shaped display panel includes multiple pixels in viewing area, and each pixel includes the sub-pixel of multiple and different colors；It is logical
The colour mixture ratio of the light of the adjustable different colours of luminous intensity of the sub-pixel of different colours is overregulated, to show image.It is different
Shape display panel generallys use open mask (open mask plate) and FFM (Fine Metal Mask, high-precision metal mask
Plate) combination viewing area is deposited as vapor deposition mask plate, since FFM is easy to be open by lower layer open mask circular edge
Influence, therefore the fringe region of the abnormity display panel in viewing area is easy to happen colour contamination, leads to the white balance of fringe region
It is abnormal, reduce the display effect of special-shaped display panel.
Above- mentioned information disclosed in the background technology part are only used for reinforcing the understanding to the background of the disclosure, therefore it can
To include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
The disclosure is designed to provide a kind of OLED abnormity screen and display device, and it is abnormal to can be avoided display, improves aobvious
Show effect.
For achieving the above object, the disclosure adopts the following technical scheme that
According to the first aspect of the disclosure, a kind of OLED abnormity screen is provided, there is viewing area, the OLED abnormity screen packet
The pixel in the viewing area array distribution is included, each pixel includes the sub-pixel of at least three kinds colors；In the display
The sub-pixel of at least one color at least one of the fringe region in area pixel includes multiple quilts independently of each other
The sub-pixel unit of control hair same color light.
In a kind of exemplary embodiment of the disclosure, the OLED abnormity screen is circle, and the fringe region is distance
The center of the OLED abnormity screen is not less than the fan-shaped region of a pre-determined distance.
In a kind of exemplary embodiment of the disclosure, the fringe region carries out for the OLED abnormity screen along radius etc.
Divide the outermost one or more fan-shaped regions being formed by multiple fan-shaped regions.
In a kind of exemplary embodiment of the disclosure, at least one of fringe region pixel includes R picture
Element, G sub-pixel and B sub-pixel；
The R sub-pixel and the G sub-pixel are arranged in the same of the B sub-pixel along the length direction of the B sub-pixel
Side；
The outer profile of the R sub-pixel is identical with the outer profile size of the G sub-pixel, and in the B sub-pixel foreign steamer
Orthographic projection in a wide long side is without departing from the long side.
In a kind of exemplary embodiment of the disclosure, the R sub-pixel includes multiple being glowed independently of each other by control
R sub-pixel unit；And the G sub-pixel includes multiple independently of each other by the G sub-pixel unit of control green light.
In a kind of exemplary embodiment of the disclosure, the quantity of the R sub-pixel unit is four and size is identical；Four
A R sub-pixel unit is distributed in array central symmetry；
The quantity of the G sub-pixel unit is four and size is identical；Four G sub-pixel units are in array center
It is symmetrical.
In a kind of exemplary embodiment of the disclosure, the B sub-pixel includes multiple independently of each other by control blue light-emitting
B sub-pixel unit.
In a kind of exemplary embodiment of the disclosure, the quantity of the B sub-pixel unit is four and size is identical；Four
A B sub-pixel unit is distributed in array central symmetry.
In a kind of exemplary embodiment of the disclosure, the OLED abnormity screen further include:
At least two layers of the drive circuit layer being stacked, at least two layers of drive circuit layer are set to the institute of the viewing area
State fringe region；
The multiple thin film transistor (TFT)s of setting of every layer of equal array of drive circuit layer.
According to the second aspect of the disclosure, a kind of display device is provided, including above-mentioned OLED abnormity screen.
The OLED abnormity screen that the disclosure provides, the sub- picture of at least one color at least one pixel of fringe region
Element includes multiple independently of each other by the sub-pixel unit of control hair same color light.When the sub-pixel part sub-pixel unit by
In colour contamination and when luminous intensity exception, the luminous intensity of the sub-pixel unit of other non-colour contamination of the adjustable sub-pixel, or
Person directly adjusts the luminous intensity that the sub-pixel unit of colour contamination occurs, to mend to the luminous intensity of the sub-pixel of colour contamination
It repays, the sub-pixel for emitting light intensity of colour contamination and other sub-pixels in same pixel is made to realize white balance.In this way, what the disclosure provided
OLED abnormity screen white balance caused by some or all of elimination colour contamination in such a way that sub-pixel unit shines compensation is abnormal, dimension
The white balance for holding fringe region overcomes the influence of colour contamination, improves display effect.
Detailed description of the invention
Its example embodiment is described in detail by referring to accompanying drawing, the above and other feature and advantage of the disclosure will become
It is more obvious.
Fig. 1 is a kind of structural schematic diagram of pixel of disclosure embodiment.
Fig. 2 is a kind of structural schematic diagram of pixel of disclosure embodiment.
Fig. 3 is the sub-pixel unit colour contamination phenomenon schematic diagram of disclosure embodiment.
Fig. 4 is a kind of display panel schematic diagram of disclosure embodiment.
Fig. 5 is the structural schematic diagram of the pixel distribution of disclosure embodiment.
Fig. 6 is a kind of structural schematic diagram of display panel of disclosure embodiment.
Main element description of symbols includes: in figure
1, pixel；11, B sub-pixel；111, B1 sub-pixel unit；112, B2 sub-pixel unit；113, B3 sub-pixel unit；
114, B4 sub-pixel unit；12, G sub-pixel；121, G1 sub-pixel unit；122, G2 sub-pixel unit；123, G3 sub-pixel list
Member；124, G4 sub-pixel unit；13, R sub-pixel；131, R1 sub-pixel unit；132, R2 sub-pixel unit；133, R3 sub-pixel
Unit；134, R4 sub-pixel unit；2, pixel；3, viewing area；31, fan-shaped region；4, underlay substrate；51, first buffer layer；
52, second buffer layer；6, the first pixel-driving circuit layer；61, the first active layer；611, drain contact region；612, channel region；
613, source contact area；614, silicon electrode plate layer；62, first grid insulating layer；63, first grid layer；64, second grid insulate
Layer；65, middle layer；66, source electrode；67, it drains；68, flatness layer；69, second grid layer；7, the second pixel-driving circuit layer；81,
First anode layer；82, second plate layer；9, pixel defining layer.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be real in a variety of forms
It applies, and is not understood as limited to example set forth herein；On the contrary, these embodiments are provided so that the disclosure will more comprehensively and
Completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Described feature, structure or characteristic
It can be incorporated in any suitable manner in one or more embodiments.In the following description, many details are provided
Embodiment of the disclosure is fully understood to provide.
Described feature, structure or characteristic can be incorporated in any suitable manner in one or more embodiments.
In the following description, many details are provided to provide and fully understand to embodiment of the disclosure.However, this field
Technical staff will realize can with technical solution of the disclosure without one or more in the specific detail, or
Person can be using other methods, constituent element, material etc..In other cases, be not shown in detail or describe known features, material or
The major technique intention that person operates to avoid the fuzzy disclosure.
Although the term of relativity, such as "upper" "lower" is used to describe a component of icon for another in this specification
The relativeness of one component, but these terms are in this manual merely for convenient, for example, with reference to the accompanying drawings described in show
The direction of example.It is appreciated that, if making it turn upside down the device overturning of icon, the component described in "upper" will
As the component in "lower".Term of other relativities, such as "high" " low " "top" "bottom" " left side " " right side " etc. are also made to have similar
Meaning.
Term "one", " one ", " described " to indicate there are one or more elements/component part/etc.；Term " packet
Include " and " having " to indicate the open meaning being included and refer to that the element/component part/in addition to listing waits it
Outside also may be present other element/component part/etc..Term " first " and " second " etc. are only used as label, are not to it
The quantity of object limits.
In the related technology, it when the special-shaped display panel needed for preparing special-shaped wearable device, needs to exist by evaporation process
Pixel is deposited in viewing area.With the special-shaped display surface of OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode)
R pixel, G pixel, B pixel, ITO (Indium tin oxide, tin indium oxide) and pixel electricity for plate, on OLED abnormity screen
Road needs successively to shine to R, G, B in viewing area by the combination of open mask and FFM using lateral juxtaposition arrangement
Region is deposited.Vapor deposition when, FFM be easy by open mask curved edge opening influenced and at the edge of viewing area
Region generates colour contamination.Since each sub-pixel (pixel) is controlled by independently TFT (thin film transistor (TFT)), work as
When the size of current of adjacent same sub-pixels is the same under entire picture, since the influence of colour contamination leads to shining for the sub-pixel of colour contamination
Brightness is different, and then OLED abnormity screen is caused to occur white balance exception when carrying out the display of white picture.
A kind of OLED abnormity screen is provided in disclosure embodiment, which has viewing area, the shape of viewing area
Shape can be the shapes at least one section curved edge such as round, ellipse, fan-shaped or annular.
As shown in Figure 1, OLED abnormity screen includes the pixel in the viewing area array distribution, each pixel includes at least three
The sub-pixel of kind color；The sub-pixel of at least one color at least one pixel of the fringe region of viewing area includes more
A sub-pixel unit for being sent out same color light by control independently of each other.
The OLED abnormity screen that the disclosure provides, the sub- picture of at least one color at least one pixel of fringe region
Element includes multiple independently of each other by the sub-pixel unit of control hair same color light.When the sub-pixel part sub-pixel unit by
In colour contamination and when luminous intensity exception, the luminous intensity of the sub-pixel unit of other non-colour contamination of the adjustable sub-pixel, or
Person directly adjusts the luminous intensity that the sub-pixel unit of colour contamination occurs, to mend to the luminous intensity of the sub-pixel of colour contamination
It repays, the sub-pixel for emitting light intensity of colour contamination and other sub-pixels in same pixel is made to realize white balance.In this way, what the disclosure provided
OLED abnormity screen white balance caused by some or all of elimination colour contamination in such a way that sub-pixel unit shines compensation is abnormal, dimension
The white balance for holding fringe region overcomes the influence of colour contamination, improves display effect.
Each component of the OLED abnormity screen provided with reference to the accompanying drawing disclosure embodiment is described in detail:
In one embodiment, as shown in figure 4, OLED abnormity screen can be circle.The circle display panel is apart from it
Center is a circle ring area not less than the region of a pre-determined distance, and the whole or in which a part of arc area of the circle ring area can
Using the fringe region as viewing area.
Technical staff can determine that fringe region in the size of radial direction, such as can use radius by a variety of methods
The methods of equal part, radius segmentation, setting pre-determined distance, setting fringe region width determine the width of fringe region.For example,
In one embodiment, round display panel can be divided into 360 fan-shaped regions along its center, then uses radius equal part
Each fan-shaped region is carried out N (N is natural number) equal part by starting point of its center by method, is formed more fan-shaped regions, is then taken
(outermost) one or more fan-shaped regions at the center far from circle display panel are as fringe region.
In another embodiment, round display panel can be divided into 360 fan-shaped regions along its center, then adopted
With dividing radius split plot design to be split each fan-shaped region according to a preset step-length as starting point, along radial direction using its center,
More fan-shaped regions are formed, (outermost) one or more fan-shaped regions at the center far from round display panel are then taken
As fringe region.Preset step-length can be selected and be adjusted according to the resolution ratio etc. of the display panel, such as the default step
Length can be 0.5mm.
In the embodiment of the present invention, pixel 1 be arranged edge region, at least one sub-pixel include multiple independent controls
Sub-pixel unit pixel, the quantity of sub-pixel included by the pixel 1 can also be three, four, five, six or
The size and shape of other quantity, each sub-pixel can be identical, not exactly the same or completely not identical, and technical staff can be with
It is selected and is applied as needed.In order to enable pixel can mix full color, at least need to include at least three kinds of face
The quantity of the sub-pixel of color, the sub-pixel of each color can be one or more, and each sub-pixel includes at least a pixel
Unit.
For example, as shown in Figure 1, pixel 1 may include the sub-pixel of three hair different colours light.For example, as
Element 1 may include B (blue) sub-pixel 11, G (green) sub-pixel 12 and R (red) sub-pixel 13.B sub-pixel 11, G sub-pixel
Can be adjacent two-by-two between 12 and R sub-pixel 13, and G sub-pixel 12 and R sub-pixel 13 are located at the same side of B sub-pixel 11.
In one embodiment, the outer profile of B sub-pixel is rectangle；The length of R sub-pixel and G sub-pixel along B sub-pixel
Direction is arranged in the same side of B sub-pixel；The outer profile of R sub-pixel and the outer profile of G sub-pixel are identical rectangular for size, and
Orthographic projection in a long side of B sub-pixel outer profile is without departing from the long side.
Since G sub-pixel 12 and R sub-pixel 13 are located at the same side of B sub-pixel 11 and close to G sub-pixel 12 and R
Colour contamination is easy to happen between sub-pixel 13.Therefore, G sub-pixel 12 may include multiple independently of each other by G of control green light
Pixel unit；Also, R sub-pixel 13 may include multiple R sub-pixel units to be glowed independently of each other by control.
As depicted in figs. 1 and 2, G sub-pixel 12 can be arranged by 2~6 G sub-pixel units, each G sub-pixel list
Member is individually controlled by TFT and is shone.Since G sub-pixel 12 may be influenced by colour contamination in a different direction, it is more
A G sub-pixel unit is distributed in array central symmetry, is gone here and there to reduce all G sub-pixel units in G sub-pixel 12
The possibility that color influences.When wherein one or more G sub-pixel units by colour contamination influenced and luminous intensity deviate preset value when, then may be used
To carry out luminous intensity compensation by other G sub-pixel units adjusted in G sub-pixel 12.Of course, those skilled in the art
Luminous intensity compensation can also be carried out by adjusting the luminous intensity of the G sub-pixel unit influenced by colour contamination.
Likewise, R sub-pixel 13 can be arranged by 2~6 R sub-pixel units, each R sub-pixel unit passes through
TFT, which is individually controlled, to shine.Since R sub-pixel 13 may be influenced by colour contamination in a different direction, multiple R pictures
Plain unit is distributed in array central symmetry, is influenced by colour contamination to reduce all R sub-pixel units in R sub-pixel 13
It may.When wherein one or more R sub-pixel units by colour contamination influenced and luminous intensity deviate preset value when, then by adjust R
Other R sub-pixel units in sub-pixel 13 carry out luminous intensity compensation.Of course, those skilled in the art can also pass through tune
The luminous intensity for saving the R sub-pixel unit influenced by colour contamination carries out luminous intensity compensation.
For example, as shown in Figure 1, G sub-pixel 12 may include four G sub-pixel units, four G sub-pixel units it
Between be centrosymmetric distribution, show 2 × 2 distributed rectangular on the whole；This four G sub-pixel units are the identical side of size
Shape can be respectively G1 sub-pixel unit 121, G2 sub-pixel unit 122, G3 sub-pixel unit 123 and G4 sub-pixel unit
124.R sub-pixel 13 may include four R sub-pixel units, and be centrosymmetric distribution between four R sub-pixel units；This four
R sub-pixel unit is that size is identical rectangular, can be respectively R1 sub-pixel unit 131, R2 sub-pixel unit 132, R3 picture
Plain unit 133 and R4 sub-pixel unit 134, show 2 × 2 distributed rectangular on the whole.
The situation of colour contamination is occurred as an example, carrying out the OLED abnormity screen of the explanation and illustration disclosure with R sub-pixel 13 now
Overcome the method and principle of colour contamination.As shown in figure 3, in one embodiment, when the lower portion region of R sub-pixel 13 is gone here and there
When color, i.e., when colour contamination occurs for the R1 sub-pixel unit 131 of R sub-pixel 13 and 134 part of R4 sub-pixel unit, in same control electricity
Its luminous intensity will change under the conditions of pressure (or control electric current), if entire R sub-pixel 13 shines without adjustment
Intensity will change, and then entire pixel is caused white balance exception occur.At this point it is possible to by adjusting the upper lateral part of R sub-pixel 13
The control voltage (or control electric current) of subregional R sub-pixel unit, so that R2 sub-pixel unit 132 and R3 sub-pixel unit
The intensity of 133 light issued changes, so that luminous intensity and B sub-pixel 11 and G are sub on the whole for final R sub-pixel 13
Pixel 12 reaches white balance.Of course, shining for R2 sub-pixel unit 132 or R3 sub-pixel unit 133 can also only be adjusted
Intensity compensates the luminous intensity variations of R1 sub-pixel unit 131 and R4 sub-pixel unit 134.In another embodiment, may be used
With the luminous intensity by adjusting the R1 sub-pixel unit 131 and R4 sub-pixel unit 134 that are influenced by colour contamination, realize to R
The luminous compensation of pixel 13.
As shown in Fig. 2, since B sub-pixel 11 may also be influenced by colour contamination, B sub-pixel 11 can also be divided into
Multiple and different B sub-pixel units.B sub-pixel 11 can be arranged by 2~6 B sub-pixel units, each B sub-pixel list
Member is individually controlled by TFT and is shone.Since B sub-pixel 11 may be influenced by colour contamination in a different direction, it is more
A B sub-pixel unit can be distributed in array central symmetry, so as to reduce in B sub-pixel 11 all B sub-pixel units by
The possibility influenced to colour contamination.When wherein one or more B sub-pixel units by colour contamination influenced and luminous intensity deviate preset value when,
Then luminous intensity compensation is carried out by other B sub-pixel units adjusted in B sub-pixel 11.Of course, can also be by adjusting
The luminous intensity of the B sub-pixel unit influenced by colour contamination carries out luminous intensity compensation.
For example, B sub-pixel 11 may include four B sub-pixel units, and four B sub-pixel units are that size is identical
Rectangle, respectively B1 sub-pixel unit 111, B2 sub-pixel unit 112, B3 sub-pixel unit 113 and B4 sub-pixel unit 114,
This four pixel units show 2 × 2 distributed rectangular on the whole.
Technical staff can determine the luminous intensity compensation rate of the sub-pixel of colour contamination by many algorithms.For example,
Since the luminous intensity of pixel unit is directly proportional to electric current (current) passed through, after grayscale driving, can pass through
Data acquisition obtain normal luminous pixel unit I-V curve (current -voltage curve), and be fitted obtain quantization electric current with
The formula of voltage.According to the formula of the electric current of the quantization and voltage, combined data acquisition calculates the picture of the sub-pixel of each colour contamination
The compensation rate of plain unit, and the compensation rate is burned onto DIC, antithetical phrase picture is realized by the compensation to pixel unit luminous intensity
The compensation of plain luminous intensity, so that the luminous intensity of the sub-pixel of colour contamination is identical as the luminous intensity of the sub-pixel of not colour contamination.Skill
Art personnel it is realized that, luminous pixel unit is compensated, either there is no the pictures of colour contamination in the sub-pixel of colour contamination
Plain unit is also possible to that the pixel unit of colour contamination occurs.
In order to arrange more TFT in identical area, the independent control to each pixel unit, OLED abnormity are realized
The whole of screen or part can have the pixel-driving circuit layer of multilayered structure, multilayer pixel-driving circuit layer stackup setting and every
TFT is arranged in array on layer pixel-driving circuit layer, and the independence for controlling each pixel unit shines.The pixel of multilayered structure is driven
Edge region can be set in dynamic circuit layer.Of course, OLED abnormity screen can also only include one layer of pixel-driving circuit layer, and
By increasing the TFT density of setting of the pixel-driving circuit layer edge region, so that each sub-pixel unit is by one
The independent control of a corresponding TFT.
For example, which has two-layer pixel drive circuit layer, and two-layer pixel drive circuit layer includes the
Two pixel-driving circuit layers 7 and the first pixel-driving circuit layer 6.Each layer of pixel-driving circuit layer is arranged multiple in array
TFT, each TFT connect correspondingly with each sub-pixel unit and control each sub-pixel unit and independently shine.
Certainly, likewise, the pixel-driving circuit layer of trilaminate stack, four layer stackups can also be arranged in those skilled in the art
Pixel-driving circuit layer or other quantity stacking pixel-driving circuit layer, set on each pixel-driving circuit layer in array
It sets TFT and each TFT controls a sub-pixel unit, realize the purpose for increasing TFT quantity in the limited area of plane, realize
Independent control to each sub-pixel unit of sub-pixel.
In one embodiment, by taking the quantity of pixel-driving circuit layer is two layers as an example, as shown in fig. 6, OLED abnormity screen
It may include underlay substrate 4, first buffer layer 51, the first pixel-driving circuit layer 6, second buffer layer 52, the second pixel driver
Circuit layer 7, anode layer and pixel defining layer 9, in which:
First buffer layer 51 is set to underlay substrate 4；
First pixel-driving circuit layer 6 is set to side of the first buffer layer 51 far from underlay substrate 4, has multiple arrays row
The TFT of cloth.First pixel-driving circuit layer 6 includes the first active layer 61, silicon electrode plate layer 614, first grid insulating layer 62, the
One grid layer 63, second grid insulating layer 64, second grid layer 69, middle layer 65, source electrode 66, drain electrode 67 and flatness layer 68,
In,
First active layer 61 and silicon electrode plate layer 614 are spaced apart from each other and are set to first buffer layer 51 far from underlay substrate 4 one
Side.First active layer 61 includes 66 contact zone 613 of 67 contact zone 611 of drain electrode, channel region 612 and source electrode of same layer setting；
First grid insulating layer 62 covers first active layer 61, silicon electrode plate layer 614 and first buffer layer 51；
First grid layer 63 is set to side of the first grid insulating layer 62 far from underlay substrate 4, and is divided into face the
Two parts of one active layer 61 and silicon electrode plate layer 614；
Second grid insulating layer 64 covers first grid layer 63 and part first grid insulating layer 62；
Second grid layer 69 is set to silicon electrode plate described in side of the second grid insulating layer 64 far from underlay substrate 4 and face
Layer 614；
Middle layer 65 covers first grid insulating layer 62, second grid insulating layer 64 and second grid layer 69；
Source electrode 66 is set to side of the middle layer 65 far from underlay substrate 4 and connect with 66 contact zone 613 of source electrode；
Drain electrode 67 is set to side of the middle layer 65 far from underlay substrate 4 and connect with 67 contact zones 611 of drain electrode；
Flatness layer 68 covers middle layer 65, source electrode 66 and drain electrode 67, for forming second in the side far from underlay substrate 4
Buffer layer 52.
Wherein, the first active layer 61, first grid layer 63, source electrode 66 and drain electrode 67 constitute TFT.
Second buffer layer 52 is set to the first side of the pixel-driving circuit layer 6 far from first buffer layer 51；
Second pixel-driving circuit layer 7 is set to side of the second buffer layer 52 far from underlay substrate 4, has multiple arrays row
The TFT of cloth.The structure of second pixel-driving circuit layer 7 can be identical as the structure of the first pixel-driving circuit layer 6.
Anode layer is set to the second side of the pixel-driving circuit layer 7 far from second buffer layer 52, is at least divided into first
Anode layer 81 and second plate layer 82, first anode layer 81 connect by the way that via hole is corresponding with the drain electrode of the first pixel-driving circuit layer 6
It connects, second plate 82 is correspondingly connected with by the drain electrode of via hole and the second pixel-driving circuit layer 7；
Pixel defining layer 9, set on anode layer or the second side of the pixel-driving circuit layer 7 far from second buffer layer 52, and
First pixel is set；Each pixel unit of first pixel is connect with an anode respectively, for receiving the control of corresponding TFT
Signal processed.
In the non-edge of OLED abnormity screen, it can be configured using conventional pixel, simplify OLED abnormity screen
Preparation.As shown in figure 5, conventional pixel can be pixel 2, pixel 2 includes R sub-pixel, G sub-pixel and B sub-pixel etc. three
Sub-pixel, control of each sub-pixel by a TFT.
For pixel 1, when colour contamination problem is not present in sub-pixel, each sub-pixel unit in sub-pixel can be with identical
Control voltage (or control electric current) control of size, so that each sub-pixel unit luminous intensity is identical, it is different to simplify OLED
The control method of shape screen.If sub-pixel has colour contamination, need to carry out each of sub-pixel sub-pixel unit
Individually control, to overcome the problems, such as colour contamination.
In order to simplify the control to display device, fringe region can be divided into different regions and detect each region
Whether influenced by colour contamination.If all pixels are not influenced by colour contamination in a certain region, to the region using system
One controls, i.e., the sub-pixel unit in same sub-pixel is all made of identical control voltage (or control electric current).If a certain region
Inside there are problems that colour contamination, then independent control is used to the pixel unit in the region, i.e., according to situation to each sub-pixel
Unit separate configurations control voltage (or control electric current).
For example, as shown in figure 4, in one embodiment, viewing area 3 is circle, fringe region can be divided into
The fan-shaped region 31 of 360 equal parts.If colour contamination occurs in some fan-shaped region 31, which can be subjected to independence
Control, i.e. each of independent control fan-shaped region 31 sub-pixel unit.
A kind of driving method of OLED abnormity screen is additionally provided in disclosure embodiment, for driving above-mentioned OLED different
OLED abnormity screen described in shape screen embodiment.The driving method includes: that each sub-pixel unit of control sub-pixel respectively is only
It is vertical to shine, so that the luminous intensity of sub-pixel and the luminous intensity of other sub-pixels in the pixel where it reach white balance.
Technical staff by the fringe region to OLED abnormity screen also it should also be understood that can carry out subregion and filter out
There are problems that the subregion of colour contamination, pixel unit therein is independently controlled, to the subregion that colour contamination problem is not present, to wherein
Pixel unit be uniformly controlled.
By using the disclosure provide OLED abnormity screen driving method, can to disclosure embodiment OLED abnormity
The pixel of screen is driven, and overcomes the problems, such as colour contamination.
A kind of display device is additionally provided in disclosure embodiment, which has above-mentioned OLED abnormity screen real
Apply OLED abnormity screen described in mode.The display device can include but is not limited to television set, mobile phone, computer, intelligent hand
Table, Intelligent bracelet, electronic instrument instruction disk, robot interactive panel etc..
In the embodiment of OLED abnormity screen and above-mentioned OLED abnormity screen that the display device of disclosure embodiment uses
OLED abnormity screen it is identical, therefore, beneficial effect having the same, details are not described herein.
It should be appreciated that the disclosure is not limited in its application to the detailed construction and arrangement of the component of this specification proposition
Mode.The disclosure can have other embodiments, and can realize and execute in many ways.Aforesaid deformation form and
Modification is fallen within the scope of this disclosure.It should be appreciated that this disclosure and the disclosure of restriction extend in text
And/or it is mentioned in attached drawing or all alternative combinations of two or more apparent independent features.It is all these different
Combination constitutes multiple alternative aspects of the disclosure.Embodiment described in this specification illustrates to become known for realizing the disclosure
Best mode, and those skilled in the art will be enable using the disclosure.
Claims (10)
1. a kind of OLED abnormity screen has viewing area, the OLED abnormity screen includes the pixel in the viewing area array distribution,
Each pixel includes the sub-pixel of at least three kinds colors；It is characterized in that, the viewing area fringe region at least
The sub-pixel of at least one color in one pixel includes multiple independently of each other by control hair same color light
Sub-pixel unit.
2. OLED abnormity screen according to claim 1, which is characterized in that the viewing area is circle, the fringe region
It is not less than the fan-shaped region of a pre-determined distance for the center apart from the viewing area.
3. OLED abnormity screen according to claim 2, which is characterized in that the fringe region is the viewing area along radius
Carry out outermost one or more fan-shaped regions that equal part is formed by multiple fan-shaped regions.
4. OLED abnormity screen according to claim 1, which is characterized in that at least one of fringe region pixel
Including R sub-pixel, G sub-pixel and B sub-pixel；
The R sub-pixel and the G sub-pixel are arranged in the same side of the B sub-pixel along the length direction of the B sub-pixel；
The outer profile of the R sub-pixel is identical with the outer profile size of the G sub-pixel, and in the B sub-pixel outer profile
Orthographic projection in one long side is without departing from the long side.
5. OLED abnormity screen according to claim 4, which is characterized in that the R sub-pixel includes multiple quilts independently of each other
Control the R sub-pixel unit to glow；And the G sub-pixel includes multiple independently of each other by the G sub-pixel list of control green light
Member.
6. OLED abnormity screen according to claim 5, which is characterized in that the quantity of the R sub-pixel unit be four and
It is identical rectangular for size；Four R sub-pixel units are distributed in array central symmetry；
The quantity of the G sub-pixel unit is four and size is identical；Four G sub-pixel units are in array central symmetry
Distribution.
7. OLED abnormity screen according to claim 5 or 6, which is characterized in that the B sub-pixel includes multiple mutually indepedent
By the B sub-pixel unit of control blue light-emitting.
8. OLED abnormity screen according to claim 7, which is characterized in that the quantity of the B sub-pixel unit be four and
Size is identical；Four B sub-pixel units and in array central symmetry be distributed.
9. OLED abnormity screen according to claim 8, which is characterized in that the OLED abnormity screen further include:
At least two layers of the drive circuit layer being stacked, at least two layers of drive circuit layer are set to the side of the viewing area
Edge region；
The multiple thin film transistor (TFT)s of setting of every layer of equal array of drive circuit layer.
10. a kind of display device, which is characterized in that including OLED abnormity screen according to any one of claims 1 to 9.
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