CN107910350A - A kind of display base plate, display device - Google Patents

A kind of display base plate, display device Download PDF

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Publication number
CN107910350A
CN107910350A CN201711121318.5A CN201711121318A CN107910350A CN 107910350 A CN107910350 A CN 107910350A CN 201711121318 A CN201711121318 A CN 201711121318A CN 107910350 A CN107910350 A CN 107910350A
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CN
China
Prior art keywords
base plate
display base
display
organic component
area
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Granted
Application number
CN201711121318.5A
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Chinese (zh)
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CN107910350B (en
Inventor
张玉欣
李新国
吴新银
乔勇
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Priority to CN201711121318.5A priority Critical patent/CN107910350B/en
Publication of CN107910350A publication Critical patent/CN107910350A/en
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80Constructional details
    • H10K59/88Dummy elements, i.e. elements having non-functional features

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The present invention discloses a kind of display base plate, display device, it is related to display technology field, to solve in the prior art, when being cut to display base plate motherboard, the stress that cutting produces easily cracks display base plate, and then causes display base plate to show the problem of bad.The display base plate, including display area and around the neighboring area of the display area, the neighboring area of the display base plate is provided with the first organic component that can absorb stress, and first organic component is completely embedded in the film layer of the neighboring area.Display base plate provided by the invention is used for display picture.

Description

A kind of display base plate, display device
Technical field
The present invention relates to display technology field, more particularly to a kind of display base plate, display device.
Background technology
With the continuous development of Display Technique, Organic Light Emitting Diode (English:Organic Light-Emitting Diode, hereinafter referred to as OLED) display base plate, light emitting diode with quantum dots (English:Quantum Dot Light Emitting Diodes, hereinafter referred to as QLED) the new display base plate such as display base plate is with its impact resistance, and shock resistance is strong, light-weight, volume It is small, the features such as more convenient is carried, receives the extensive concern of people.
In actual production, in order to improve the production efficiency of oled display substrate or QLED display base plates, it can generally be formed Corresponding oled display substrate motherboard or QLED display base plate motherboard, then carries out cut place to the display base plate motherboard of preparation again Reason, to form corresponding display base plate.But when carrying out cutting process, the stress of generation is cut easily so that display base plate produces Raw crackle, and crackle is also possible to further expand to the viewing area of display base plate, causes display base plate display occur undesirable Problem.
The content of the invention
It is an object of the invention to provide a kind of display base plate, display device, for solving in the prior art, to display When substrate motherboard is cut, cutting the stress of generation easily cracks display base plate, and then causes display base plate to show The problem of bad.
To achieve these goals, the present invention provides following technical solution:
The first aspect of the present invention provides a kind of display base plate, including display area and around the periphery of the display area Region, the neighboring area of the display base plate are provided with the first organic component that can absorb stress, first organic component It is completely embedded in the film layer of the neighboring area.
Further, first organic component surrounds the display area of the display base plate.
Further, the display base plate includes underlay substrate and the thin film transistor (TFT) being arranged on the underlay substrate And light-emitting component, first organic component set fluted, the extension side of the groove away from the surface of the underlay substrate To almost parallel with the edge of the display area.
Further, the display base plate further includes stress absorbing layer, and the stress absorbing layer is located at the film crystal Between pipe and the underlay substrate.
Further, the stress absorbing layer is made of organic material.
Further, the display base plate further includes can absorbing for the display area edge that is arranged on the display base plate Second organic component of stress.
Further, second organic component, which is located at, is arranged on the pixel defining layer at the display area edge and described Between the underlay substrate that display base plate includes, orthographic projection of second organic component on the underlay substrate and the pixel The orthographic projection that layer is defined in the underlay substrate at least partly overlaps.
Further, second organic component surrounds the central area of the display area.
Further, first organic component and second organic component are made of organic material.
Based on the technical solution of above-mentioned display base plate, the second aspect of the present invention provides a kind of display device, including above-mentioned Display base plate.
In technical solution provided by the invention, due to being provided with the first organic component in the neighboring area of display base plate, make Obtain when carrying out being cut to display base plate to display base plate motherboard, the first organic component can be effectively absorbed in cutting process The stress of generation, avoids the stress that cutting produces from causing display base plate to crack, ensure that display base plate in practical application Display quality.
Brief description of the drawings
Attached drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the first structure schematic diagram of display base plate provided in an embodiment of the present invention;
Fig. 2 is the second structure diagram of display base plate provided in an embodiment of the present invention;
Fig. 3 is the 3rd structure diagram of display base plate provided in an embodiment of the present invention;
Fig. 4 is the 4th structure diagram of display base plate provided in an embodiment of the present invention.
Reference numeral:
1- underlay substrates, 20- display areas,
21- gate insulators, 22- interlayer insulating films,
23- passivation layers, 24- anodes,
25- organic luminous layers, 26- cathodes,
27- pixel defining layers, 28- thin film transistor (TFT)s,
The first organic components of 3-, 31- grooves,
4- planarization layers, 5- stress absorbing layers,
The second organic components of 6-.
Embodiment
In order to further illustrate display base plate provided in an embodiment of the present invention, display device, with reference to Figure of description It is described in detail.
Referring to Fig. 1, display base plate provided in an embodiment of the present invention includes:Display area 20 and around display area 20 Neighboring area, the neighboring area of display base plate are provided with the first organic component 3 that can absorb stress, and the first organic component 3 is complete It is embedded in entirely in the film layer of neighboring area.
Specifically, when making display base plate, display base plate motherboard is initially formed, which includes multiple displays Substrate, and each display base plate includes display area 20 and around the neighboring area of display area 20, in the week of each display base plate Border region makes the first organic component 3 so that the first organic component 3 is located at display area 20 and the display base plate of each display base plate Between the line of cut of motherboard, so when being cut to display base plate motherboard, the first organic component 3 can be good at absorption and cut The stress that operation produces is cut, avoids stress from extending to the display area 20 of display base plate.
In display base plate provided in an embodiment of the present invention, due to being provided with first organic portion in the neighboring area of display base plate Part 3 so that when carrying out being cut to display base plate to display base plate motherboard, the first organic component 3, which can effectively absorb, to be cut The stress produced during cutting, avoids the stress that cutting produces from causing display base plate to crack, ensure that display base plate in reality Display quality when border is applied.Further, since the first organic component 3 is completely embedded in the film layer of neighboring area, ensureing to inhale While receiving cutting stress, it is thus also avoided that formation of first organic component 3 to other film layers in display base plate has an impact.
It should be noted that the display base plate formed generally comprises:Underlay substrate 1 and it is formed on underlay substrate 1 Planarization layer 4, gate insulator 21, interlayer insulating film 22, passivation layer 23, thin film transistor (TFT) 28, anode 24, organic luminous layer 25th, cathode 26 and pixel defining layer 27 etc., and when actually preparing display base plate, can be direct in order to simplify preparation process By planarization layer 4, gate insulator 21, interlayer insulating film 22, passivation layer 23 etc. covering underlay substrate 1 Zone Full (including Display area and neighboring area).Display base plate based on said structure, the first organic component 3 can be formed at peripheral region On underlay substrate 1, planarization layer 4, gate insulator 21 or the interlayer insulating film 22 or passivation layer 23 in domain, and it can run through flat Change in layer 4, gate insulator 21, interlayer insulating film 22, the film layer such as passivation layer 23 it is any one or more layers.When the first of formation , can be directly positioned at substrate when organic component 3 is through planarization layer 4, gate insulator 21, interlayer insulating film 22 and passivation layer 23 1 neighboring area of substrate forms groove, and enables the groove through planarization layer 4, gate insulator 21, interlayer insulating film 22 With passivation layer 23, the first organic component 3 is then formed in the groove.
In addition, display base plate provided in an embodiment of the present invention is chosen as oled display substrate or QLED display base plates, but not It is only limitted to this.Moreover, above-mentioned display base plate can be flexible display substrates or non-flexible display base plate.
The structure for the first organic component 3 that above-described embodiment provides is varied, as long as cutting operation can effectively be absorbed The stress of generation, for example, the first organic component 3 is set around the display area 20 of display base plate, and setting first is organic Component 3 has certain thickness so that the first organic component 3 is formed to around the similar of the display area 20 of display base plate The structure of enclosure wall shape.First organic component 3 of segmentation can certainly be set, for example, in the display area 20 of display base plate Three faces set three section of first organic component 30, and the one side for being in addition not provided with the first organic component 30 can be used for bonding driving chip.
Specifically, the first organic component 3 to be arranged to the structure of similar enclosure wall shape, the display area of display base plate can be made 20 are surrounded completely by the first organic component 3, and so when carrying out being cut to display base plate to display base plate motherboard, first has Machine component 3 can preferably absorb the stress that cutting produces, and avoid the stress that cutting produces and extend to display area 20 to aobvious Show that the display effect of substrate has an impact.
Referring to Fig. 2, above-mentioned display base plate includes underlay substrate 1 and the film being arranged on the underlay substrate 1 is brilliant Body pipe 28 and light-emitting component (light-emitting component may include anode 24, organic luminous layer 25, cathode 26), in order to further improve first Organic component 3 absorbs the ability of stress, it is preferred that the first organic component 3 is set into groove 31 away from the surface of underlay substrate 1, And the extending direction of groove 31 and the edge of display area are almost parallel.In more detail, the first organic component 3 can be deviated from The patterned surface of underlay substrate 1, forms multigroup groove 31, and the groove extending direction of each group groove 31 with display area Edge is almost parallel, and multigroup groove 31 can be set around display area 20 successively in a manner of rectangular-ambulatory-plane is nested.
Away from the surface of underlay substrate 1 setting groove 31 in the first organic component 3, not only to improve the first organic component 3 right The absorbability of stress so that stress can preferably be absorbed by the first organic component 3, ensure the display quality of display base plate, Moreover, when above-mentioned display base plate is flexible display substrates, above-mentioned patterned first organic component 3 can also be lifted preferably The flexibility energy of flexible display substrates.
It is worth noting that, the depth of the above-mentioned groove 31 being formed on the first organic component 3 can be according to actual needs Set, as long as meeting that the depth of groove 31 is less than the thickness of the first organic component 3.
As shown in figure 3, above-mentioned display base plate further includes stress absorbing layer 5, which is located at thin film transistor (TFT) 28 Between underlay substrate 1, and stress absorbing layer 5 can cover Zone Full or the subregion of underlay substrate 1.
In more detail, stress absorbing layer 5 is set between underlay substrate 1 and thin film transistor (TFT) 28 so as to display When substrate motherboard carries out cutting operation, stress absorbing layer 5 can further absorb the stress produced due to cutting operation, preferably The influence that display base plate is stressed is avoided, ensure that the display quality of display base plate.In addition, in order to ensure thin film transistor (TFT) 28 formation is unaffected, and planarization layer 4 can be set between stress absorbing layer 5 and gate insulator 21.
It is worth noting that, above-mentioned 5 available material of stress absorbing layer is varied, it is preferred that selects organic material Prepare stress absorbing layer 5.When selecting organic material to prepare stress absorbing layer 5, resin material can be specifically selected to prepare stress suction Layer 5 is received, since resin material itself has preferable pliability, the stress absorbing layer 5 prepared using resin material, not only It can be good at absorbing flexible display substrates in stress caused by bending, lift the flexible of flexible display substrates;Can also The stress produced in cutting process is enough absorbed, is avoided since what is cracked caused by cutting in the film layer of display base plate asks Topic.
As shown in figure 4, the display base plate that above-described embodiment provides further includes the display area edge for being arranged on display base plate The second organic component 6 that can absorb stress.Specifically, at the edge of the display area 20 of display base plate, setting second is organic Component 6 can further absorb the stress by bending or cutting generation, effectively prevent from being diffused into display by the crackle that stress produces Region, reduces risk cracked on the film that display base plate includes, realizes the protective effect to display base plate well.
The specific of above-mentioned second organic component 6 sets position varied, and optionally, the second organic component 6 is positioned at setting Between the pixel defining layer 27 at display area edge and underlay substrate 1, orthographic projection of second organic component 6 in underlay substrate 1 At least partly overlapped with orthographic projection of the pixel defining layer 27 in underlay substrate 1.
Since the display area edge of display base plate is typically provided with pixel defining layer 27, and pixel defining layer 27 is used Material be chosen as resin material, therefore, the second organic component 6 is arranged between pixel defining layer 27 and underlay substrate 1, and So that the second organic component 6 underlay substrate 1 orthographic projection and pixel defining layer 27 underlay substrate 1 orthographic projection at least partly It during coincidence, can realize using homogenous resins material, form the second organic component 6 and pixel circle at the same time in a patterning processes Given layer 27, avoiding increases extra preparation process to form the second organic component 6, has saved production cost.
Above-mentioned second organic component 6 equally has various structures, and optionally, the second organic component 6 is and first organic portion The structure of the identical similar enclosure wall shape of part, i.e. the second organic component 6 surround the central area of display area, which is aobvious Show the region in addition to the edge of display area in region.Moreover, the set-up mode of the second organic component 6 can with it is first organic Component 3 is identical, can equally accomplish underlay substrate 1, planarization layer 4, gate insulator 21, interlayer insulating film 22 or passivation layer 23 On, and can run through any one layer in the film layer such as planarization layer 4, gate insulator 21, interlayer insulating film 22, passivation layer 23 or Multilayer.
Specifically, the second organic component 6 is arranged to the structure of similar enclosure wall shape, enables to the second organic component 6 more Stress is absorbed well, avoids stress from extending to the display area 20 of display base plate, the display to display base plate has an impact.More into One step, the second organic component 6 of setting surrounds the center of the display area in display area in addition to the edge of display area Domain, enable to the second organic component 6 display area all directions absorb cutting produce stress, reduce further by Extending to display area in stress causes the cracked risk in display area.In addition, the quantity of the second organic component 6 can be set To be multiple, preferably to ensure the assimilation effect to stress.
It is worth noting that, in order to preferably lift assimilation effect of second organic component 6 to stress, can be in viewing area The edge in domain sets multiple second organic components 6, and multiple second organic components 6 can be formed in a manner of rectangular-ambulatory-plane is nested The edge of display area, so establishes multilayer barricade equivalent at the edge of display area, to the display area of display base plate 20 form multilayer protection, so that the cracked risk in the display area 20 of display base plate be preferably minimized.
The material of above-mentioned first organic component, 3 and second organic component 6 is varied, and only need to meet to be formed first is organic 3 and second organic component 6 of component has preferable stress absorption ability, it is preferred that the first organic component 3 and second is organic Component 6 uses organic material, when selecting organic material to prepare the first organic component 3 and the second organic component 6, can specifically select The first organic component 3 and the second organic component 6 are prepared with photosensitive resin.Specifically, first organic portion is prepared using photosensitive resin 3 and second organic component 6 of part, not only so that formed the first organic component 3 and the second organic component 6 stress absorption ability compared with It is good, and due to the characteristic of photosensitive material itself, when forming the first organic component 3 and the second organic component 6, it is only necessary to Photosensitive resin film is formed in corresponding position, then pattern is carried out by modes such as exposure imagings to the photosensitive resin film of formation Change, you can form corresponding first organic component, 3 and second organic component 6, without extra coating photoresist layer, simplify The preparation process of first organic component 3 and the second organic component 6, improves the preparation efficiency of display base plate.
The embodiment of the present invention additionally provides a kind of display device, including the display base plate that above-described embodiment provides.Due to upper The display base plate for stating embodiment offer is provided with the first organic component 3 in neighboring area so that is carried out to display base plate motherboard When being cut to display base plate, the first organic component 3 can effectively absorb the stress produced in cutting process, avoid cutting from producing Raw stress causes display base plate to crack, and ensure that display quality of the display base plate in practical application.Further, since the One organic component 3 is completely embedded in the film layer of neighboring area, while ensureing to absorb cutting stress, it is thus also avoided that first has Formation of the machine component 3 to other film layers in display base plate has an impact.Therefore, display device provided in an embodiment of the present invention is being wrapped When including above-mentioned display base plate, equally with the effect above.
In the description of the above embodiment, particular features, structures, materials, or characteristics can be in any one or more Combined in an appropriate manner in a embodiment or example.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (10)

1. a kind of display base plate, including display area and around the neighboring area of the display area, it is characterised in that it is described aobvious Show that the neighboring area of substrate is provided with the first organic component that can absorb stress, first organic component is completely embedded in institute In the film layer for stating neighboring area.
2. display base plate according to claim 1, it is characterised in that first organic component surrounds the display base plate Display area.
3. display base plate according to claim 2, it is characterised in that the display base plate includes underlay substrate and setting Thin film transistor (TFT) and light-emitting component on the underlay substrate, first organic component deviate from the surface of the underlay substrate Set fluted, the extending direction of the groove and the edge of the display area are almost parallel.
4. display base plate according to claim 3, it is characterised in that the display base plate further includes stress absorbing layer, institute Stress absorbing layer is stated between the thin film transistor (TFT) and the underlay substrate.
5. display base plate according to claim 4, it is characterised in that the stress absorbing layer is made of organic material.
6. according to Claims 1 to 5 any one of them display base plate, it is characterised in that the display base plate further includes setting The second organic component that can absorb stress at the display area edge of the display base plate.
7. display base plate according to claim 6, it is characterised in that second organic component is described aobvious positioned at being arranged on Show between the pixel defining layer of edges of regions and the underlay substrate that the display base plate includes, second organic component is described Orthographic projection on underlay substrate is at least partly overlapped with orthographic projection of the pixel defining layer in the underlay substrate.
8. display base plate according to claim 7, it is characterised in that second organic component surrounds the display area Central area.
9. display base plate according to claim 6, it is characterised in that first organic component and second organic portion Part is made of organic material.
10. a kind of display device, it is characterised in that including such as claim 1~9 any one of them display base plate.
CN201711121318.5A 2017-11-14 2017-11-14 Display substrate and display device Active CN107910350B (en)

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WO2020258550A1 (en) * 2019-06-26 2020-12-30 武汉华星光电半导体显示技术有限公司 Display panel
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CN112038355B (en) * 2020-08-28 2022-05-31 武汉华星光电半导体显示技术有限公司 Array substrate and display device
CN112038355A (en) * 2020-08-28 2020-12-04 武汉华星光电半导体显示技术有限公司 Array substrate and display device
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