CN108565281A - The production method of display screen, display device and display screen - Google Patents
The production method of display screen, display device and display screen Download PDFInfo
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- CN108565281A CN108565281A CN201810457236.6A CN201810457236A CN108565281A CN 108565281 A CN108565281 A CN 108565281A CN 201810457236 A CN201810457236 A CN 201810457236A CN 108565281 A CN108565281 A CN 108565281A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims description 4
- 238000007740 vapor deposition Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 76
- 239000010409 thin film Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229920002120 photoresistant polymer Polymers 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000005530 etching Methods 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 239000010406 cathode material Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000011368 organic material 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/822—Cathodes characterised by their shape
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- H—ELECTRICITY
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Abstract
The present invention relates to the production method of a kind of display screen, display device and display screen, effective display area includes edge viewing area and main viewing area；Edge viewing area includes the first sub- marginal zone and the second sub- marginal zone；Display screen includes：Pixel confining layer offers multiple openings；The pixel unit of repeated arrangement, each pixel unit include multiple sub-pixels, and the light emitting structure of sub-pixel is set in the opening of pixel confining layer；Cathode, it is formed in pixel confining layer, trepanning is offered on the cathode of the first sub- marginal zone, trepanning is projected as the first projection in the array substrate of display screen, positioned at each of pixel confining layer for stating the first sub- marginal zone opening the second projection, multiple second projections of the first projection covering are projected as in array substrate.There are light emitting structures in opening, but place corresponding with light emitting structure lacks cathode, thus while light emitting structure exists but do not shine, therefore improve the sawtooth sense of display platen edge.
Description
Technical field
The present invention relates to display technology fields, more particularly to a kind of display screen, the making side of display device and display screen
Method.
Background technology
The tablet that Organic Light Emitting Diode (Organic light-emitting diode, OLED) is known as 21 century is aobvious
Show and third generation display technology, it has also become a current international big research hotspot.Organic Light Emitting Diode has driving voltage
It is low, actively shine, visual angle is wide, efficient, fast response time, easily realizes the wall-mounted display of Panchromatic great-arear and Flexible Displays
Many features, while having many advantages, such as that manufacturing cost is low, low in energy consumption.
The luminescent layer of OLED display screen is typically all to penetrate metal mask plate using evaporation film-forming technology by organic material
Corresponding location of pixels forms organic light emitting component in deposition substrate.The preferable pixel row of OLED display screen colorization effect
Row mode is that have three sub-pixels of red, green, blue, each sub-pixel to have independent organic light emission member device in each pixel unit
Part.
However in order to meet user individual customization and use demand, the requirement to the display area shape of OLED display screen
Also it is stepping up, is producing special-shaped display screen therewith, such as common special-shaped display screen mainly has fan-shaped, arc and circle shape
Shape.But when the periphery of OLED display screen forms profiled shape (such as arc), inventor has found, OLED in the prior art is aobvious
When display screen is observed on a microscopic scale, apparent sawtooth sense will present.
Invention content
Based on this, the present invention provides a kind of display screen, display device and display screen production methods, solve display screen and exist
Apparent sawtooth sense problem is presented when being observed on micro-scale, has achieved the effect that reduce sawtooth sense.
A kind of display screen, the display screen has contour line, to define the range of effective display area；The effective display area
Include the edge viewing area of the neighbouring contour line and the main viewing area far from the contour line；The edge viewing area includes position
In first sub- marginal zone of the contour line far from the main viewing area side, and it is located at the contour line towards the main display
Second sub- marginal zone of area side；
The display screen includes：
Substrate, includes the pixel unit of pixel confining layer and repeated arrangement on the substrate, in the pixel confining layer
Multiple openings are offered, each pixel unit includes multiple sub-pixels, and the light emitting structure of each sub-pixel is set to
In the corresponding opening of the pixel confining layer；
Cathode is formed in the pixel confining layer, and trepanning is offered on the first area of the cathode, and described first
Region be positioned at the region of the cathode of the described first sub- marginal zone, the trepanning on the substrate be projected as the first throwing
Shadow, positioned at each of the pixel confining layer of the described first sub- marginal zone it is described opening on the substrate be projected as second
Projection, the first projection covering part or all second projection.
The quantity of the trepanning of the first area is one in one of the embodiments, first projection
Quantity is one, and first projection of trepanning is surrounded and multiple openings for covering the pixel confining layer
Multiple second projections.
In one of the embodiments, the trepanning of the first area be it is multiple, it is described first projection quantity with
The quantity of the trepanning is equal, and each first projection is corresponded with each second projection, and corresponding described
First projection is completely superposed with second projection.
In one of the embodiments, the trepanning of the first area be it is multiple, it is described first projection quantity with
The quantity of the trepanning is equal, and the drop shadow spread of first projection of each trepanning is more than the corresponding picture
The drop shadow spread of second projection of the opening of plain confining layers.
The arrangement mode of the pixel unit of the edge viewing area and the main display in one of the embodiments,
The arrangement mode of the pixel unit in area is identical.
It is located at the bottom of the opening of the pixel confining layer of the edge viewing area in one of the embodiments,
Vapor deposition has light emitting structure.
It is located at the bottom of the opening of the pixel confining layer of the described second sub- marginal zone in one of the embodiments,
Portion, which is deposited, light emitting structure, and the bottom for being located at the opening of the part pixel confining layer of the described first sub- marginal zone is steamed
It is coated with light emitting structure.
The described one end of opening far from the substrate of each of described pixel confining layer is in institute in one of the embodiments,
The orthographic projection for stating substrate is second projection.
A kind of display device, including：
Display screen as described in any one of the above embodiments；And
Power module, for powering for the display screen；
Memory module is used for media information；
Processing module is electrically connected with the display screen, the power module and the memory module, to control
The electric energy supply of power module is stated, and media information is shown in the display screen.
A kind of production method of display screen, the display screen has contour line, to define the range of effective display area；It is described
Effective display area includes the edge viewing area of the neighbouring contour line and the main viewing area far from the contour line；The edge is aobvious
Show that area includes being located at first sub- marginal zone of the contour line far from the main viewing area side, and be located at the contour line direction
Second sub- marginal zone of the main viewing area side；
This method includes：
Substrate is provided, the pixel unit of pixel confining layer and repeated arrangement, the pixel confining layer are included on the substrate
Upper have multiple openings, and each pixel unit includes multiple sub-pixels, and the light emitting structure of the sub-pixel is formed in described
In the opening of pixel confining layer；
Cathode is formed in the pixel confining layer；
Trepanning is formed on the cathode positioned at the described first sub- marginal zone.
The production method of display screen provided by the invention, display device and display screen, when the first area in cathode opens up
When having trepanning, wherein first area is positioned at the region of the cathode of the first sub- marginal zone, throwing of the trepanning on the substrate of display screen
Shadow is the first projection, and the second projection is projected as on substrate positioned at each of pixel confining layer of the first sub- marginal zone opening
When, multiple second projections of the first projection covering are corresponding with light emitting structure although there are light emitting structures in opening at this time
Place lack cathode, cause current loop to disconnect, thus while light emitting structure exist but do not shine, then at the first sub- edge
Area can't have brightness, so just also achieve entire invalid viewing area and do not shine, therefore improve the saw of display platen edge
Tooth sense.
Description of the drawings
Fig. 1 is display screen heteromorphic regions microstructure vertical view provided in an embodiment of the present invention；
Fig. 2 is the sectional view of display screen provided in an embodiment of the present invention；
Fig. 3 is the partial enlarged view of the display screen heteromorphic regions microstructure vertical view provided in Fig. 1；
Fig. 4 is the flow chart of display screen production method provided in an embodiment of the present invention.
Specific implementation mode
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described.In attached drawing
Give presently preferred embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.Keep the understanding to the disclosure more thorough on the contrary, purpose of providing these embodiments is
Comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the Listed Items of pass.
As described in background, using the OLED display screen of the prior art, observation on a microscopic scale exists apparent
Sawtooth sense problem, for inventor the study found that the basic reason for this problem occur is, sub-pixel is generally the rectangular of rule
Shape, and the contour line of OLED display screen is generally arc, then rectangular sub-pixel can not possibly be complete with the contour line of arc
Match, then will necessarily occur irregular zigzag in contour line periphery, be seen on a microscopic scale so as to cause OLED display screen
It will appear apparent sawtooth sense when examining.
Refering to fig. 1, one embodiment of the invention provides a kind of display screen 100, and display screen 100 is different from outside traditional rectangle
Shape, the display screen 100 are slotted, i.e., in display screen 100 on the basis of traditional rectangular profile in one end of display screen 100
One end has profiled shape.
It should be noted that the display screen 100 in the present embodiment can have slotted zones (also known as opening or Liu at one end
Sea or heteromorphic regions, slotted zones have arc angling, hereinafter referred to as slot) display screen 100, can also be in traditional rectangular shape
On the basis of with edge arc angling (hereinafter referred to as edge chamfer) display screen 100, can also be at the same have fluting with
The display screen 100 of edge chamfer, that is, the display screen 100 for any region with arc angling, scheme disclosed in the present embodiment
It is applicable in.In being described below, only illustrated by taking the slotted display screen of tool shown in FIG. 1 100 as an example.
It is the boundary line of the slotted zones of display screen 100 that display screen 100, which has contour line 101, contour line 101, and so as to
Range for defining effective display area, that is, it is effective display area to be located at the display screen area within contour line 101, is located at profile
Display screen area other than line 101 is invalid viewing area, effective display area a width picture or Dynamic Announce picture for rendering, nothing
Picture or Dynamic Announce picture need not be presented in effect viewing area, but when having sub-pixel in invalid viewing area, display
Picture or Dynamic Announce picture can influence the display effect of effective display area, such as the sawtooth sense at picture edge.In a particular application,
Display screen 100 can be plane screen, can also be Curved screen, such as the Curved screen of TV or the Curved screen of mobile phone.
Effective display area includes the edge viewing area 102 of adjacent wheel profile 101 and the main viewing area far from contour line 101
103.Wherein, main viewing area 103 is adjacent with edge viewing area 102, and most display screens within contour line 101
Region.And intersect (i.e. part is partly located at except contour line 101 within contour line 101), whole positions with contour line 101
Other than contour line 101 and it is entirely located within contour line 101 and is side close to the fraction display screen area of contour line 101
Edge viewing area 102.
Then in the present embodiment, be located in main viewing area 103 and edge viewing area 102 101 limited area of contour line it
The second interior sub- marginal zone 1022 is divided into effective display area, is located at except 101 limited area of contour line in edge viewing area 102
The first sub- marginal zone 1021 be divided into invalid viewing area.
Wherein, the second above-mentioned sub- marginal zone 1022 for close contour line 101 in edge viewing area 102 and is entirely located in wheel
It is located at contour line in fraction display screen area within profile 101 and the edge viewing area 102 intersected with contour line 101
Part display screen area within 101, also the as second sub- marginal zone 1022 be located at contour line 101 towards main viewing area 103
Side.Close contour line 101 in edge viewing area 102 is in first sub- marginal zone 1021 and is entirely located in except contour line 101
It is located at the part except contour line 101 in fraction display screen area and the edge viewing area intersected with contour line 101 to show
Shield region, also the as first sub- marginal zone 1021 is located at side of the contour line 101 far from main viewing area 103.
Refering to Fig. 2 and Fig. 3, display screen 100 includes the pixel unit of several repeated arrangements, and each pixel unit includes multiple
Sub-pixel, specifically, each pixel unit include the first sub-pixel, the second sub-pixel and third sub-pixel.Display screen 100 also wraps
Substrate 30 and pixel confining layer 10 are included, pixel confining layer 10 is set on substrate 30, and pixel confining layer 10 is equipped with corresponding per height
The opening 105 (the central part opening for exposing each sub-pixel) of the light emitting structure of pixel 104, the hair for limiting sub-pixel
Photo structure, the light emitting structure c difference of the light emitting structure a of the first sub-pixel, the light emitting structure b of the second sub-pixel and third sub-pixel
It is set in corresponding opening.
Specifically, when above-mentioned first sub-pixel, the second sub-pixel and third sub-pixel are respectively red sub-pixel, green
When pixel is with blue subpixels, transmitting feux rouges, green light and blue light can be deposited in above-mentioned opening using precision metallic mask plate
Luminescent material be respectively formed above-mentioned red sub-pixel, green sub-pixels and blue subpixels.In other embodiments, pixel list
Member further includes the sub-pixel of other colors, such as white sub-pixels, yellow sub-pixel.
Referring to Fig.2, display screen 100 further includes cathode 20,20 corresponding sub-pixel of cathode is formed in pixel confining layer 10, tool
Body, cathode 20 distinguishes corresponding first sub-pixel, the second sub-pixel and third sub-pixel and is deposited to be formed.Specifically, cathode 20 is
One overall structure, to cover the whole of pixel confining layer 10.
The first area of cathode 20 offers trepanning 106, and first area is the cathode 20 positioned at the first sub- marginal zone 1021
Region, trepanning 106 is projected as the first projection on the substrate of display screen, and the pixel for being located at the first sub- marginal zone 1021 limits
Each of layer 10 opening is projected as the second projection, multiple second projections of the first projection covering on substrate.
In this way, when offering trepanning 106 in the first area of cathode 20, substrate (such as array base of the trepanning in display screen
Plate) on be projected as the first projection, each of pixel confining layer 10 opening is (first throws when being projected as the second projection on substrate
Shadow and the corresponding substrate of the second projection are identical), first projects covering part or all second projects, at this time the first sub- marginal zone
Although 1021 there are light emitting structures, place corresponding with light emitting structure to lack cathode 20 in opening, electric current is caused to return
Road disconnects, thus while light emitting structure exists but do not shine, then can't have brightness in the first sub- marginal zone 1021, so
Just it also achieves entire invalid viewing area not shine, therefore improves the sawtooth sense of display screen frontside edge.
Specifically, it is located at the arrangement mode of the pixel unit of edge viewing area 102 and the pixel list for being located at main viewing area 103
The arrangement mode of member is identical, then can ensure the uniformity of the pixel unit arrangement of entire display screen 100, avoid entire effective
There is the luminance difference shown in viewing area.
Specifically, it is located at quantity of the pixel unit of edge viewing area 102 on the unit area of display screen 100, with position
Quantity of the pixel unit on the unit area of display screen 100 in main viewing area 103 is identical.More specifically, in display screen 100
Length direction and width direction on, be located at edge viewing area 102 pixel unit, with the pixel list positioned at main viewing area 103
Member is arranged according to identical rule, such as on the length direction and width direction of display screen 100, is located at edge viewing area 102
Spacing between each adjacent two pixel unit, with the spacing between each adjacent two pixel unit of main viewing area 103
It is identical.
It is the top partial view diagram of display screen fringe region, for the pixel unit intersected with contour line 101, nothing refering to Fig. 3
It is located at the area of the part of the first sub- marginal zone 1021 and the pixel unit (or sub- picture by each pixel unit (or sub-pixel)
Element) be located at the second sub- marginal zone 1022 part area ratio how, be provided in pixel confining layer 10 it is corresponding should
The opening 105 of the light emitting structure of all sub-pixels included by pixel unit, correspondingly, in the son with the first sub- marginal zone 1021
The region of the corresponding cathode of pixel is also equipped with opening 106, as shown in Figure 3.Cathode zone setting opening 106 shape with should
The shape for the part-structure that sub-pixel is located at the first sub- marginal zone 1021 after being cut by contour line 101 is identical, such as shadow part in Fig. 3
Shown in the opening 106 divided.That is the shape of opening 106 is located at the first sub- edge after being cut by contour line 101 with corresponding sub-pixel
The variation of the shape of the part-structure in area 1021 and be adjusted correspondingly.
In one embodiment, it for each sub-pixel outside contour line 101, is not set in pixel confining layer 10
It is equipped with the light emitting structure opening of the corresponding sub-pixel.
Further, for each sub-pixel intersected with contour line 101, when each sub-pixel is located at the first sub- marginal zone
The area of 1021 part, when being more than the area for the part that the sub-pixel is located at the second sub- marginal zone 1022, pixel confining layer 10
It is not provided with the opening of the light emitting structure of the corresponding sub-pixel, the position that cathode 20 corresponds to the sub-pixel does not offer trepanning,
As the sub-pixel is divided into invalid sub-pixel, then pixel confining layer 10 is not provided with the light emitting structure of the corresponding sub-pixel
Opening, so also need not the corresponding position of cathode 20 be provided with trepanning.
Specifically, when each sub-pixel is located at the area of the part of the first sub- marginal zone 1021, it is located at more than the sub-pixel
The area of the part of second sub- marginal zone 1022 1/2 when, pixel confining layer 10 is not provided with the light-emitting junction of the corresponding sub-pixel
The opening of structure, the position that cathode 20 corresponds to the sub-pixel do not offer trepanning.Also it is the every height picture intersected with contour line 101
Element is located at the area of the second sub- marginal zone 1022 positioned at the area of the part of the first sub- marginal zone 1021 and the sub-pixel
When ratio is more than 50%, pixel confining layer 10 is not provided with the opening of the light emitting structure of the corresponding sub-pixel, and cathode 20 corresponds to should
The position of sub-pixel does not offer trepanning.In another embodiment, for each sub-pixel intersected with contour line 101, when
Each sub-pixel is located at the area of the part of the first sub- marginal zone 1021, is located at the second sub- marginal zone 1022 more than the sub-pixel
When partial area, pixel confining layer 10 is provided with the opening of the light emitting structure of the corresponding sub-pixel, and cathode 20 corresponds to the sub- picture
The position of element offers trepanning.
Specifically, when sub-pixel is located at the area of the part of the first sub- marginal zone 1021, it is more than the sub-pixel and is located at second
The area of the part of sub- marginal zone 1022 1/2 when, pixel confining layer 10 is provided with opening for the light emitting structure of the corresponding sub-pixel
Mouthful, the position that cathode 20 corresponds to the sub-pixel offers trepanning.Also it is each sub-pixel for intersect with contour line 101 positioned at the
The ratio that the area and the sub-pixel of the part of one sub- marginal zone 1021 are located at the area of the part of the second sub- marginal zone 1022 is super
When 50%, pixel confining layer 10 is provided with the opening of the light emitting structure of the corresponding sub-pixel, and cathode 20 corresponds to the sub-pixel
Position offers trepanning.
The bottom for being located at the opening of the pixel confining layer 10 of edge viewing area 102 in one of the embodiments, is deposited
There is light emitting structure, when can so ensure that the first area in cathode 20 is not provided with trepanning, entire edge viewing area 102 is sent out
Light.
It is understood that in another embodiment, the pixel limit positioned at the second sub- marginal zone 1022 can also be arranged
The bottom of the opening of given layer 10, which is deposited, light emitting structure, and the partial pixel confining layers 10 positioned at the first sub- marginal zone 1021 are opened
The bottom vapor deposition of mouth has light emitting structure, is also the pixel confining layer for being located at and intersecting within contour line 101 and with contour line 101
The bottom vapor deposition of 10 opening has light emitting structure, when can so ensure that the first area in cathode 20 is not provided with opening, position
The edge viewing area 102 intersected within contour line 101 and with contour line 101 shines.
It is only opened up there are one trepanning in the first area of cathode 20 in one of the embodiments, such first projection
Quantity is also accordingly one, and multiple second projections of one first projection covering can so ensure to be located at outside contour line 101
Corresponding cathode 20 is not present in the light emitting structure of sub-pixel in the opening of pixel confining layer 10, although then there is light emitting structure
In the presence of but do not shine.
In another embodiment, multiple trepannings are offered in the first area of cathode 20, the quantity of the first projection with open
The quantity in hole is equal, and the drop shadow spread of first projection of each trepanning on substrate is more than corresponding pixel confining layer
It is open in the drop shadow spread of the second projection of substrate, the pixel confining layer it is also ensured that outside contour line 101 is arranged such
Corresponding cathode 20 is not present in the light emitting structure of sub-pixel in 10 opening, although then not with the presence of light emitting structure
It shines.
In yet another embodiment, the first area of cathode 20 offers multiple trepannings, and the quantity of the first projection is and opens
The quantity in hole is equal, and each first projection is corresponded with each second projection, the first projection of each trepanning and each pixel
The second projection that each of confining layers 10 are open is completely superposed, and the pixel it is also ensured that outside contour line 101 is arranged such
Corresponding cathode 20 is not present in the light emitting structure of sub-pixel in the opening of confining layers 10, although then with the presence of light emitting structure
But it does not shine.
It should be noted that second projection of the opening of above-mentioned pixel confining layer 10 on substrate, is opening
Far from substrate one end in the orthographic projection of substrate.In this embodiment, due to the longitudinal section shape of the opening of pixel confining layer 10
Shape is typically designed as inverted trapezoidal (i.e. trapezoidal relatively narrow one end close to substrate, and wider one end is far from substrate), then the second projection
It is set as opening orthographic projection of the wider one end in longitudinal section towards substrate, when first projection the second projection of covering, it is ensured that open
The projection of any part towards the substrate of mouth is respectively positioned within the coverage area of the first projection.
In the present embodiment, the shape of trepanning determines that the cross-sectional shape of such as opening is designed as square according to the shape of opening
When shape, if a complete opening is located at outside contour line 101, the shape of trepanning at this time is also configured as rectangle, if portion
It separates mouth to be located at outside contour line 101, i.e., opening intersects with contour line 101, since contour line 101 is abnormity, then being located at profile
Opening shape outside line 101 is no longer regular figure, but special-shaped, then the shape of trepanning at this time is also configured as the shape with opening
The abnormity to match.
With continued reference to Fig. 2, in this example it is shown that screen further include thin film transistor (TFT) (Thin-film transistor,
TFT), thin film transistor (TFT) is arranged on substrate 30.
Substrate 30 has the first sub-pixel area domain, the second subpixel area and third subpixel area.One group of first sub- picture
Plain region, the second subpixel area and third subpixel area may be constructed a pixel region.Substrate 30 can have multiple
Pixel region.In the present embodiment, the first sub-pixel area domain is the subpixel area for emitting feux rouges, and the second subpixel area is hair
The subpixel area of green light is penetrated, third subpixel area is to emit the subpixel area of blue light.
Thin film transistor (TFT) controls the transmitting of each sub-pixel, or can control and emit when each sub-pixel emissive light
Amount.Thin film transistor (TFT) includes planarization layer 41, semiconductor layer 42, gate electrode 43, source electrode 44, drain electrode 45, gate insulating layer
46 and interlayer insulating film 47, semiconductor layer 42 includes channel region and the source region doped with dopant and drain region, gate insulating layer 46
It is covered on semiconductor layer 42, generally gate insulating layer 46 can cover the whole surface of substrate 30, and the setting of gate electrode 43 exists
On gate insulating layer 46, gate electrode 43 is covered by interlayer insulating film 47, removes the one of gate insulating layer 46 and interlayer insulating film 47
Part forms contact hole with the presumptive area of exposed semiconductor layer 42, source electrode 44 and drain electrode 45 via connecing after the removal
Contact hole contacts semiconductor layer 42.
Specifically, thin film transistor (TFT) further includes protective layer, and protective layer covers the whole or Part portions of substrate 30, planarization
Layer 41 is formed on protective layer, through-hole is formed in protective layer and planarization layer 41, to expose the source electrode 44 and drain electrode of TFT
45。
In this example it is shown that screen 100 further includes the first pixel electrode 51, the second pixel electrode 52 and third
Pixel electrode 53.First pixel electrode 51 is formed in the first sub-pixel area domain, and the second pixel electrode 52 is formed in the second son
Pixel region, third pixel electrode 53 are formed in third subpixel area.First pixel electrode 51, the second pixel electrode
52 and third pixel electrode 53 in each can be electrically connected to thin film transistor (TFT) by through-hole.Here the first sub-pixel
Electrode 51, the second pixel electrode 52, third pixel electrode 53 are commonly known as anode.Specifically, pixel confining layer 10 is same
When cover the first pixel electrode 51, the second pixel electrode 52 and third pixel electrode 53.
The display screen of the embodiment of the present invention, when in first area, also as edge viewing area 102 is located at contour line restriction area
When being provided with trepanning on the cathode 20 of the part except domain, trepanning is projected as the first projection, pixel on the substrate of display screen
Each of confining layers 10 opening is on substrate when being projected as the second projection, multiple second projections of the first projection covering, though at this time
So there are light emitting structures in opening, but place corresponding with light emitting structure lacks cathode 20, therefore the first sub- marginal zone
Although 1021 there are light emitting structures, place corresponding with light emitting structure to lack cathode 20 in opening, thus while hair
Photo structure exists but does not shine, then can't have brightness in the first sub- marginal zone 1021, so just also achieve entire nothing
Effect viewing area does not shine, therefore improves the sawtooth sense of display screen frontside edge.
It will be understood by those skilled in the art that for display screen 100 of different shapes, the region of trepanning is provided on cathode
Difference, for example, there is the display screen 100 of edge chamfer again for existing fluting, in slot area, (slot area also has circular arc
Chamfering) the first sub- marginal zone 1021 cathode 20 on offer the opposite trepanning of opening with pixel confining layer 10, while
The trepanning opposite with the opening of pixel confining layer 10 is offered on the cathode of first sub- marginal zone 1021 of edge chamfer, to drop
The sawtooth sense in low edge region.For only having the display screen 100 of edge chamfer, then only in the first sub- marginal zone of edge chamfer
The trepanning opposite with the opening of pixel confining layer 10 is offered on 1021 cathode 20；For only having the display screen of slot area
100, and the right angle that edge is rule, then it is only offered on the cathode 20 of the first sub- marginal zone 1021 of slot area and pixel
The opposite trepanning that is open of confining layers 10.
One embodiment of the invention also provides a kind of display device, including above-mentioned display screen 100, further includes power supply mould
Block, memory module and processing module, power module are used to power for display screen 100, and memory module is used for media information, place
It manages module and display screen, power module and memory module to be electrically connected, the electric energy for controlling power module supplies, and by media
Presentation of information is in display screen 100.
Refering to Fig. 4, one embodiment of the invention also provides a kind of production method of display screen, including step：
S110：Substrate 30 is provided, substrate 30 can be glass substrate, or flexible base board；It include picture on substrate 30
The pixel unit of plain confining layers 10 and repeated arrangement, it includes more to have multiple openings, each pixel unit in pixel confining layer 10
The light emitting structure of a sub-pixel, sub-pixel is formed in the opening of pixel confining layer 10；
Specifically, sub-pixel is one kind in red sub-pixel, green sub-pixels and blue subpixels, and red pigment sub-pixel
Light emitting structure a, the light emitting structure b of green sub-pixels and the light emitting structure c of blue subpixels be deposited respectively in corresponding picture
In the opening of plain confining layers 10.
S120：Cathode 20 is formed in pixel confining layer 10；
In the present embodiment, cathode 20 can be integral structure, cover entire pixel confining layer 10, and correspond to first respectively
Sub-pixel, the second sub-pixel and third sub-pixel are deposited to be formed.In other embodiments, cathode 20 can also be strip structure or
Block structure.S130：Trepanning is formed on the cathode 20 of the first sub- marginal zone 1021.
After cathode 20 have been deposited, lithography and etching technique can be used, trepanning is opened up in the first area of cathode 20.Specifically
, first the spin coating photoresist on cathode 20, uses the mask plate with hole pattern for mask, is exposed later, develops, obtains
To the photoresist layer with hole pattern, later, using the photoresist layer with photoresist layer figure as mask, using etching work
The cathode material that skill removal is not photo-etched glue-line covering removes photoresist layer again later to form trepanning on cathode 20.
Wherein, first area is positioned at the region of the cathode 20 of the first sub- marginal zone 1021, throwing of the trepanning on substrate 30
Shadow is the first projection, is open positioned at pixel confining layer 10 of the first sub- marginal zone 1021 each of and is projected as the on substrate 30
Two projections, multiple second projections of the first projection covering, although at this time the first sub- marginal zone 1021 in opening there are light emitting structure,
But due to lacking cathode 20, so ensure that the light emitting structure positioned at the first sub- marginal zone 1021 does not shine, then entire
There is no luminous sub-pixels for invalid viewing area, therefore improve the sawtooth sense of display screen frontside edge.
Specifically, further include after step s 130 step：
Light removing layer is formed on cathode 20；Encapsulation module is set on the light removing layer.
It is understood that further including other steps, specific step other than above-mentioned steps in other embodiments
The mode similar with the prior art may be used, details are not described herein.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of display screen, which is characterized in that the display screen has contour line, to define the range of effective display area；It is described
Effective display area includes the edge viewing area of the neighbouring contour line and the main viewing area far from the contour line；The edge is aobvious
Show that area includes being located at first sub- marginal zone of the contour line far from the main viewing area side, and be located at the contour line direction
Second sub- marginal zone of the main viewing area side；
The display screen includes：
Substrate includes the pixel unit of pixel confining layer and repeated arrangement on the substrate, is opened up in the pixel confining layer
There are multiple openings, each pixel unit includes multiple sub-pixels, and each the light emitting structure of the sub-pixel is set to described
In the corresponding opening of pixel confining layer；
Cathode is formed in the pixel confining layer, and trepanning is offered on the first area of the cathode, the first area
For positioned at the region of the cathode of the described first sub- marginal zone, the trepanning on the substrate be projected as the first projection,
Each of the pixel confining layer positioned at the described first sub- marginal zone it is described opening on the substrate be projected as the second throwing
Shadow, the first projection covering part or all second projection.
2. display screen according to claim 1, which is characterized in that the quantity of the trepanning of the first area is one
A, the quantity of first projection is one, and first projection of a trepanning, which surrounds and covers the pixel, to be limited
Multiple second projections of multiple openings of layer.
3. display screen according to claim 1, which is characterized in that the trepanning of the first area be it is multiple, it is described
The quantity of first projection is equal with the quantity of the trepanning, and each first projection and each second projection one are a pair of
It answers, and corresponding first projection is completely superposed with second projection.
4. display screen according to claim 1, which is characterized in that the trepanning of the first area be it is multiple, it is described
The quantity of first projection is equal with the quantity of the trepanning, and the drop shadow spread of first projection of each trepanning is more than
The drop shadow spread of second projection of the opening of the corresponding pixel confining layer.
5. display screen according to claim 1, which is characterized in that the arrangement of the pixel unit of the edge viewing area
Mode is identical as the arrangement mode of the pixel unit of main viewing area.
6. display screen according to claim 5, which is characterized in that be located at the pixel confining layer of the edge viewing area
The bottom of the opening be deposited and have light emitting structure.
7. display screen according to claim 5, which is characterized in that the pixel for being located at the described second sub- marginal zone limits
The bottom of the opening of layer, which is deposited, light emitting structure, is located at the part pixel confining layer of the described first sub- marginal zone
The bottom vapor deposition of the opening has light emitting structure.
8. display screen according to claim 1, which is characterized in that each of described pixel confining layer opening is far from institute
The one end for stating substrate is projected in the orthographic projection of the substrate for described second.
9. a kind of display device, which is characterized in that including：
Display screen as described in any one of claim 1-8；And
Power module, for powering for the display screen；
Memory module is used for media information；
Processing module is electrically connected with the display screen, the power module and the memory module, to control the electricity
The electric energy of source module supplies, and media information is shown in the display screen.
10. a kind of production method of display screen, which is characterized in that the display screen has contour line, to define effective display area
Range；The effective display area includes the edge viewing area of the neighbouring contour line and the main display far from the contour line
Area；The edge viewing area includes being located at first sub- marginal zone of the contour line far from the main viewing area side, and be located at
Second sub- marginal zone of the contour line towards the main viewing area side；
This method includes：
Substrate is provided, the pixel unit of pixel confining layer and repeated arrangement is included on the substrate, is had in the pixel confining layer
There are multiple openings, each pixel unit includes multiple sub-pixels, and the light emitting structure of the sub-pixel is formed in the pixel
In the opening of confining layers；
Cathode is formed in the pixel confining layer；
Trepanning is formed on the cathode positioned at the described first sub- marginal zone.
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