CN205104492U - Array substrate and display device - Google Patents
Array substrate and display device Download PDFInfo
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- CN205104492U CN205104492U CN201520908092.3U CN201520908092U CN205104492U CN 205104492 U CN205104492 U CN 205104492U CN 201520908092 U CN201520908092 U CN 201520908092U CN 205104492 U CN205104492 U CN 205104492U
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- organic electroluminescent
- array base
- base palte
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- type organic
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Abstract
The utility model provides an array substrate and display device belongs to and shows technical field, its problem that can solve present display device frame broad. The utility model discloses an array substrate, include display area and incite somebody to action the neighboring area that display area surrounded display area is provided with a plurality of active organic electroluminescence diodes, array substrate is still including setting up a plurality of passive form organic electroluminescence diodes of neighboring area, wherein, active organic electroluminescence diode and passive form organic electroluminescence diode all are connected with power drive unit electricity. The utility model discloses an array substrate is owing to being provided with a plurality of passive form organic electroluminescence diodes that can give out light, so make in the neighboring area the utility model discloses an array substrate realizes narrow limitization.
Description
Technical field
The utility model belongs to Display Technique field, is specifically related to a kind of array base palte and display unit.
Background technology
ORGANIC ELECTROLUMINESCENCE DISPLAYS (OrganicLight-EmittingDiode; OLED) device is as a kind of novel flat panel display, owing to having, active illuminating, luminosity are high, wide viewing angle, fast response time, low energy consumption and can the feature such as flexibility, receive increasing concern, become the Display Technique of future generation that may replace liquid crystal display.OLED is divided into active driving (AM-OLED) and passive type to drive (PM-OLED) in a driving manner.
The typical structure of PM-OLED is by glass substrate, ITO (indiumtinoxide; Indium tin oxide) anode (Anode), organic luminous layer (EmittingMaterialLayer) and negative electrode (Cathode) etc. formed, there is structure simple, drive lead-in wire few, the characteristics such as peripheral circuit occupied area is few.
AM-OLED is then applied in each sub-pixel of display floater, and in each sub-pixel, be also equipped with the low-temperature polysilicon film transistor (LowTemperaturePoly-SiThinFilmTransistor with switching function, LTP-SiTFT) and charge storage capacitance, peripheral drive circuit and array of display whole system are integrated on same glass substrate.Have fast response time, high-contrast, the advantages such as colour gamut is wide, energy-conservation are the main flow directions of OLED technical development, but at least have raster data model, the peripheral leads that source-drain electrode driving etc. are a large amount of due to each low-temperature polysilicon film transistor.And these lead areas cannot be luminous, what cause final display unit to certainly exist one fixed width cannot the black region of display frame, and the namely frame region of display floater, causes display floater cannot realize narrow limit.
Utility model content
Technical problem to be solved in the utility model comprises, and for the problems referred to above that existing array base palte exists, provides a kind of array base palte and the display unit that can realize narrow limit.
The technical scheme that solution the utility model technical problem adopts is a kind of array base palte, the neighboring area comprising viewing area and described viewing area is surrounded, described viewing area is provided with multiple active organic electroluminescent diode, and described array base palte also comprises the multiple passive type organic electroluminescent LEDs being arranged on described neighboring area; Wherein, described active organic electroluminescent diode and passive type organic electroluminescent LED are all electrically connected with power source drive unit.
Preferably, and the top electrode of described passive type organic electroluminescent LED arranges with layer and material is identical for the top electrode of described active organic electroluminescent diode;
The hearth electrode of described active organic electroluminescent diode and the hearth electrode of described passive type organic electroluminescent LED arrange with layer and material is identical;
The luminescent layer of described active organic electroluminescent diode and the luminescent layer of described passive type organic electroluminescent LED arrange with layer and material is identical.
Preferably, multiple described passive type organic electroluminescent LED is matrix arrangement, and the hearth electrode being located at the described passive type organic electroluminescent LED of same a line links into an integrated entity; The top electrode being located at the described passive type organic electroluminescent LED of same row links into an integrated entity.
Preferably, described array base palte also comprises: the gate driver circuit below the described passive type organic electroluminescent LED place layer being positioned at neighboring area.
Preferably, described array base palte also comprises: the multiple switching transistors below the described active organic electroluminescent diode place layer being positioned at viewing area; Wherein, the drain electrode of switching transistor described in each connects the hearth electrode of a described active organic electroluminescent diode.
Preferably, described array base palte also comprises the multiple first dottle pin posts above the pixel confining layers of the described active organic electroluminescent diode being positioned at viewing area; And, the multiple second dottle pin posts above the pixel confining layers being positioned at the described passive type organic electroluminescent LED of neighboring area.
Further preferably, the shape of described first dottle pin post is trapezoid; The shape of described second dottle pin post is inverted trapezoidal.
The technical scheme that solution the utility model technical problem adopts is a kind of display unit, and it comprises above-mentioned array base palte.
The utility model has following beneficial effect:
The neighboring area of array base palte of the present utility model is provided with multiple passive type organic electroluminescent LED, the neighboring area of array base palte can be made to carry out luminescence, therefore can realize the display effect of narrow frame.
Display unit of the present utility model is owing to comprising above-mentioned array base palte, therefore its frame is narrower.
Accompanying drawing explanation
Fig. 1 is the floor map of the array base palte of embodiment 1 of the present utility model;
Fig. 2 is the cutaway view of the A-A ＇ of Fig. 1;
Fig. 3 is the schematic diagram of the step 6 of the preparation method of the array base palte of embodiment 2 of the present utility model;
Fig. 4 is the schematic diagram of the step 7 of the preparation method of the array base palte of embodiment 2 of the present utility model;
Fig. 5 is the schematic diagram of the step 8 of the preparation method of the array base palte of embodiment 2 of the present utility model;
Fig. 6 is the schematic diagram of the step 9 of the preparation method of the array base palte of embodiment 2 of the present utility model.
Wherein Reference numeral is: 10, substrate; 11, resilient coating; 12, active layer; 13, gate insulator; 14, grid; 15, interlayer insulating film; 16A, source electrode; 16B, drain electrode; 17, planarization layer; 18, the anode of AM-OLED; 19, the pixel confining layers of AM-OLED; 20, the first dottle pin post; 21, the luminescent layer of AM-OLED; 22, the luminescent layer of PM-OLED; 23, the pixel confining layers of PM-OLED; 24, the second dottle pin post; 25, the anode of PM-OLED; 26, the negative electrode of AM-OLED; 27, the negative electrode of PM-OLED.
Embodiment
For making those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
First, it should be noted that at this, organic electroluminescent LED (OLED) comprises just puts type and inversion type; Wherein, its negative electrode of OLED just putting type is arranged at above anode, and that is top electrode is negative electrode, and hearth electrode is anode; And its anode of the OLED of inversion type is arranged at above negative electrode, that is hearth electrode is negative electrode, and top electrode is anode.All be described for the OLED just putting type in the examples below, but this is not as the restriction to protection range of the present utility model, the OLED of inversion type is also in protection range of the present utility model.
Wherein, the patterning processes described in following examples can only include photoetching process, or, comprise photoetching process and etch step, other techniques for the formation of predetermined pattern such as printing, ink-jet can also be comprised simultaneously; Photoetching process, refers to that utilize photoresist, mask plate, the exposure machine etc. that comprise the technical processs such as film forming, exposure, development form the technique of figure.Can according to the structure choice formed in the present embodiment corresponding patterning processes.
Next, in conjunction with following embodiment to array base palte of the present utility model and preparation method thereof, display unit is described.
Embodiment 1:
As illustrated in fig. 1 and 2, the present embodiment provides a kind of array base palte, the neighboring area AR ＇ (PR wherein shown in figure is whole non-display area) comprising viewing area AR and described viewing area AR is surrounded, described viewing area AR is provided with multiple active organic electroluminescent diode, described neighboring area AR ＇ is provided with multiple passive type organic electroluminescent LED; Wherein, described active organic electroluminescent diode and passive type organic electroluminescent LED are all electrically connected with power source drive unit.
Concrete, it will be understood by those skilled in the art that, array base palte comprises substrate 10, intersect and insulate many grid lines and a plurality of data lines that are arranged on above substrate, the position wherein intersected at adjacent grid line and adjacent data line will limit a pixel, each pixel comprises a light-emitting component and for driving the switching transistor of this light-emitting component luminescence, due to this light-emitting component luminescence whether, by connected switching transistor control (the drain electrode 16B of switching transistor described in each connects the anode 18 of an AM-OLED), therefore this light-emitting component i.e. multiple active (active) organic electroluminescent LED (AM-OLED) described in the present embodiment.And to be applicable to display frame used the pixel position on array base palte, therefore this part region is claimed to be viewing area AR.By this viewing area AR surround region be then neighboring area AR ＇, namely usual said frame region in prior art, and frame region normally can not be used for display.But, in the present embodiment, neighboring area AR ＇ is arranged multiple passive type organic electroluminescent LED (PM-OLED), wherein, the negative electrode of PM-OLED and the voltage of anode all applied by power source drive unit, without the need to the control of switching transistor.Owing to being provided with PM-OLED at neighboring area AR ＇, therefore also can be luminous at the neighboring area AR ＇ of array base palte, effectively reduce the width of non-display frame, improve the overall regional extent for showing, realizing the effect of narrow frame.
Wherein, the anode 18 of AM-OLED and the anode 25 of PM-OLED are arranged with layer and material is identical in the present embodiment, and that is both is prepared by employing patterning processes; The negative electrode 26 of AM-OLED and the negative electrode 27 of PM-OLED arrange with layer and material is identical, and that is both is prepared by employing patterning processes; The luminescent layer 21 of AM-OLED and the luminescent layer 22 of PM-OLED arrange with layer and material is identical, and that is both is prepared by employing patterning processes.It can thus be appreciated that the patterning processes number of times of the array base palte of the present embodiment does not increase, and therefore can raise the efficiency, save production cost.
Wherein, the multiple PM-OLED being located at neighboring area AR ＇ in the present embodiment become matrix to arrange, and the anode 25 being wherein located at the PM-OLED of same a line links into an integrated entity; The negative electrode 27 being located at the PM-OLED of same row links into an integrated entity.Setting like this, when power source drive unit is to the anode of the first row and the negative electrode applying voltage giving first row, the first row first PM-OLED luminescence now can be controlled, it can thus be appreciated that, this kind of set-up mode not only can save processing step, but also can realize the independent control of each PM-OLED.
Wherein, the gate driver circuit be positioned at below the layer of PM-OLED place is also provided with at the neighboring area AR ＇ of the array base palte of the present embodiment, that is this gate driver circuit is the GOA circuit for driving AM-OLED, thus reduces the width of the frame region of array base palte further.
Wherein, described array base palte also comprises the multiple first dottle pin posts 20 above the pixel confining layers of the AM-OLED being positioned at viewing area AR; And, the multiple second dottle pin posts 24 above the pixel confining layers being positioned at the PM-OLED of neighboring area AR ＇.
Preferably, the shape of the first dottle pin post 20 is trapezoid; The shape of the second dottle pin post 24 is inverted trapezoidal.
The reason why arranging the first dottle pin post 20 of trapezoid and the second dottle pin post 24 of inverted trapezoidal is, when the negative electrode 27 adopting the negative electrode 26 of same evaporation process formation AM-OLED with PM-OLED, the negative electrode of each AM-OLED is the structure formed as one, the side of the first dottle pin post of trapezoid stretches out gently, and the negative electrode 26 of each AM-OLED can not be caused to rupture; And the negative electrode 27 of PM-OLED is provided separately, the second dottle pin post of inverted trapezoidal can form the negative electrode 27 that multiple disconnection arranges PM-OLED, therefore so arranges.
In sum, the neighboring area AR ＇ of the array base palte of the present embodiment is provided with PM-OLED, the neighboring area AR ＇ of array base palte can be made to carry out luminescence, therefore can realize the display effect of narrow frame.
Embodiment 2:
Composition graphs 2-6 the present embodiment provides a kind of preparation method of array base palte, and wherein, this array base palte can be the array base palte in embodiment 1, and the preparation method of the present embodiment specifically comprises the steps:
Step one, in substrate buffer layer 11 and active layer film successively, and adopt patterning processes to be formed at viewing area AR to comprise the figure of the active layer 12 of switching transistor, and form the figure of active layer 12 of each transistor in gate driver circuit at neighboring area AR ＇.Then, the substrate being formed with active layer forms gate insulator 13.
Wherein, the material of resilient coating 11 and gate insulator 13 all for the oxide (SiOx) of silicon, the nitride (SiNx) of silicon, the oxide (HfOx), the nitrogen oxide (SiOxNy) of silicon, the oxide (AlOx) of aluminium etc. of hafnium or can be made up of wherein two or three multilayer film formed.
Wherein, the material of active layer can be amorphous silicon film (a-Si), polysilicon film (p-Si).
Step 2, in the substrate of completing steps one, deposition grid metallic film, and formed the figure of the grid 14 of switching transistor at viewing area AR by patterning processes, form the figure of the grid 14 of each transistor in gate driver circuit at neighboring area AR ＇, and form the figure of the grid metal lines extending to neighboring area AR ＇ from viewing area AR.
Wherein, the material of gate metal film adopts a kind of or that in them, multiple material the is formed single or multiple lift composite laminate in molybdenum (Mo), molybdenum niobium alloy (MoNb), aluminium (Al), aluminium neodymium alloy (AlNd), titanium (Ti) and copper (Cu), is preferably the single or multiple lift composite membrane of Mo, Al or the alloy composition containing Mo, Al.
Step 3, in the substrate of completing steps two, deposition interlayer insulating film 15, and interlayer insulating film 15 formed be used for active layer and source electrode with drain be connected contact via hole.
Wherein, the material of interlayer insulating film 15 for the oxide (SiOx) of silicon, the nitride (SiNx) of silicon, the oxide (HfOx), the nitrogen oxide (SiOxNy) of silicon, the oxide (AlOx) of aluminium etc. of hafnium or can be made up of wherein two or three multilayer film formed.
Step 4, in the substrate of completing steps three, deposition source and drain metallic film, and form the source electrode 16A of switching transistor and the figure of drain electrode 16B by patterning processes at viewing area AR, form the source electrode 16A of each transistor in gate driver circuit and the figure of drain electrode 16B at neighboring area AR ＇, and form the figure of the data wire extending to neighboring area AR ＇ from viewing area AR.
Wherein, the material of source and drain metallic film can be a kind of or that in them, multiple material the is formed single or multiple lift composite laminate in molybdenum (Mo), molybdenum niobium alloy (MoNb), aluminium (Al), aluminium neodymium alloy (AlNd), titanium (Ti) and copper (Cu), is preferably the single or multiple lift composite membrane of Mo, Al or the alloy composition containing Mo, Al.
Step 5, in the substrate of completing steps four, deposited planarization layer 17, and formed in planarization layer and be used for pixel electrode (anode) and the contact via hole that is connected of drain electrode.
Wherein, the material of planarization layer 17 for the oxide (SiOx) of silicon, the nitride (SiNx) of silicon, the oxide (HfOx), the nitrogen oxide (SiOxNy) of silicon, the oxide (AlOx) of aluminium etc. of hafnium or can be made up of wherein two or three multilayer film formed.
Step 6, in the substrate of completing steps five, depositing first conductive metal level, and formed the figure (each anode is arranged separately) of the anode 18 of the AM-OLED of each pixel at viewing area AR by patterning processes, the figure (anodic formation being located at same a line is integrated) of the anode 25 of each PM-OLED is formed, as shown in Figure 3 at neighboring area AR ＇.
Wherein, the material of the first conductive metal layer can be any one in ITO (tin indium oxide)/Ag (silver)/ITO (tin indium oxide) or Ag (silver)/ITO (tin indium oxide) structure; Or, the ITO in said structure is changed into any one in IZO (indium zinc oxide), IGZO (indium oxide gallium zinc) or InGaSnO (indium oxide gallium tin).
Step 7, in the substrate of completing steps six, formed the figure (comprising the pixel confining layers 19 of AM-OLED and the pixel confining layers 23 of PM-OLED) of pixel confining layers by patterning processes.Then, the figure of an evaporation process formation luminescent layer 21 of AM-OLED and the luminescent layer 22 of PM-OLED is adopted, as shown in Figure 4.
Wherein, the material of pixel confining layers for the oxide (SiOx) of silicon, the nitride (SiNx) of silicon, the oxide (HfOx), the nitrogen oxide (SiOxNy) of silicon, the oxide (AlOx) of aluminium etc. of hafnium or can be made up of wherein two or three multilayer film formed.
Wherein, the material of luminescent layer can be that the organic material of undoped fluorescence radiation is made, or adopt the organic material of the doping fluorescent material be made up of fluorescent dopants and host material to make, or the organic material of the Doping Phosphorus luminescent material be made up of phosphorescent dopants and host material is adopted to make.
Step 8, in the substrate of completing steps seven, above the pixel confining layers 19 of the AM-OLED of viewing area AR, form multiple first dottle pin post 20 by patterning processes; Preferably, the shape of the first dottle pin post 20 is trapezoid, as shown in Figure 5.
Wherein, the material of the first chock insulator matter 20 is resin material, can be polyimides, acrylic, phenolic resins.
Step 9, in the substrate of completing steps eight, above the pixel confining layers 23 of the PM-OLED of neighboring area AR ＇, form multiple second dottle pin post 24 by patterning processes.Preferably, the second dottle pin post 24 is inverted trapezoidal.What wherein adopt when formation second dottle pin post is negative photoresist, as shown in Figure 6.
Wherein, the material of the second chock insulator matter 24 is resin material, can be polyimides, acrylic, phenolic resins.
Step 10, in the substrate of completing steps nine, formed the figure of the negative electrode 26 of each AM-OLED by evaporation process, and the figure of the negative electrode 27 of each PM-OLED.Wherein, the negative electrode 26 of each AM-OLED is the structure formed as one, and is in the structure be integrated of same row, as shown in Figure 2 in the negative electrode 27 of each PM-OLED.
Wherein, cathode layer, as the articulamentum of organic electroluminescence device negative voltage, has good electric conductivity and lower work function.Cathode layer adopts low workfunction metal material usually, such as: the alloy of lithium, magnesium, calcium, strontium, aluminium, indium etc. or above-mentioned metal and copper, gold, silver is made; Or adopt the very thin buffer insulation layer of one deck (as lithium fluoride LiF, cesium carbonate CsCO
3deng) and above-mentioned metal or alloy make.
So far the preparation of array base palte is completed.
Embodiment 3:
Present embodiments provide in a kind of display unit, it comprises the array base palte of embodiment 1.This display unit can be: any product or parts with Presentation Function such as oled panel, mobile phone, panel computer, television set, display, notebook computer, DPF, navigator.
Be understandable that, the illustrative embodiments that above execution mode is only used to principle of the present utility model is described and adopts, but the utility model is not limited thereto.For those skilled in the art, when not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection range of the present utility model.
Claims (8)
1. an array base palte, the neighboring area comprising viewing area and described viewing area is surrounded, described viewing area is provided with multiple active organic electroluminescent diode, it is characterized in that, described array base palte also comprises the multiple passive type organic electroluminescent LEDs being arranged on described neighboring area; Wherein, described active organic electroluminescent diode and passive type organic electroluminescent LED are all electrically connected with power source drive unit.
2. array base palte according to claim 1, is characterized in that, the top electrode of described active organic electroluminescent diode and the top electrode of described passive type organic electroluminescent LED arrange with layer and material is identical;
The hearth electrode of described active organic electroluminescent diode and the hearth electrode of described passive type organic electroluminescent LED arrange with layer and material is identical;
The luminescent layer of described active organic electroluminescent diode and the luminescent layer of described passive type organic electroluminescent LED arrange with layer and material is identical.
3. array base palte according to claim 1, is characterized in that, multiple described passive type organic electroluminescent LED is matrix arrangement, and the hearth electrode being located at the described passive type organic electroluminescent LED of same a line links into an integrated entity; The top electrode being located at the described passive type organic electroluminescent LED of same row links into an integrated entity.
4. array base palte according to claim 1, is characterized in that, described array base palte also comprises: the gate driver circuit below the described passive type organic electroluminescent LED place layer being positioned at neighboring area.
5. array base palte according to claim 1, is characterized in that, described array base palte also comprises: the multiple switching transistors below the described active organic electroluminescent diode place layer being positioned at viewing area; Wherein, the drain electrode of switching transistor described in each connects the hearth electrode of a described active organic electroluminescent diode.
6. array base palte according to claim 1, is characterized in that, described array base palte also comprises the multiple first dottle pin posts above the pixel confining layers of the described active organic electroluminescent diode being positioned at viewing area; And, the multiple second dottle pin posts above the pixel confining layers being positioned at the described passive type organic electroluminescent LED of neighboring area.
7. array base palte according to claim 6, is characterized in that, the shape of described first dottle pin post is trapezoid; The shape of described second dottle pin post is inverted trapezoidal.
8. a display unit, is characterized in that, described display unit comprises the array base palte according to any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908092.3U CN205104492U (en) | 2015-11-13 | 2015-11-13 | Array substrate and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520908092.3U CN205104492U (en) | 2015-11-13 | 2015-11-13 | Array substrate and display device |
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| CN205104492U true CN205104492U (en) | 2016-03-23 |
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| CN201520908092.3U Withdrawn - After Issue CN205104492U (en) | 2015-11-13 | 2015-11-13 | Array substrate and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355646A (en) * | 2015-11-13 | 2016-02-24 | 京东方科技集团股份有限公司 | Array substrate and preparation method thereof and display device |
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- 2015-11-13 CN CN201520908092.3U patent/CN205104492U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355646A (en) * | 2015-11-13 | 2016-02-24 | 京东方科技集团股份有限公司 | Array substrate and preparation method thereof and display device |
| CN105355646B (en) * | 2015-11-13 | 2019-03-22 | 京东方科技集团股份有限公司 | Array substrate and preparation method thereof, display device |
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