CN104716266B - A kind of narrow frame OLED - Google Patents

A kind of narrow frame OLED Download PDF

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Publication number
CN104716266B
CN104716266B CN201310677067.4A CN201310677067A CN104716266B CN 104716266 B CN104716266 B CN 104716266B CN 201310677067 A CN201310677067 A CN 201310677067A CN 104716266 B CN104716266 B CN 104716266B
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China
Prior art keywords
film
compactness
refraction
base palte
array base
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CN201310677067.4A
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Chinese (zh)
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CN104716266A (en
Inventor
刘巍
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昆山国显光电有限公司
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Priority to CN201310677067.4A priority Critical patent/CN104716266B/en
Publication of CN104716266A publication Critical patent/CN104716266A/en
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Abstract

The invention discloses a kind of narrow frame OLED, it includes being provided with pixel region and the array base palte and encapsulation cover body corresponding with the array base palte of non-pixel region, between array base palte and encapsulation cover body and fit on the array base palte provided with forming the multi-layer film structure of scan drive circuit, in non-pixel region, packaging plastic and compactness membrane structure are sequentially provided with by encapsulation cover body at most film structure, wherein, the compactness membrane structure is the film layer structure that multilayer is arranged alternately by high index of refraction compactness film and low-refraction compactness film.Packaging plastic lower floor is placed in present invention employs the alternate compactness film of the high low-refraction of multilayer, its high reflectance, high compactness and the characteristic with glass dust or the good contact of UV glue, reduction glass frame is reached, lift the effect of water oxygen barrier, improving laser efficiency and seal adhesive curing efficiency.

Description

A kind of narrow frame OLED

Technical field

A kind of relevant active matrix/organic light emitting display of the present invention(AMOLED, Active Matrix Organic Light Emitting Diode), particularly relate to a kind of organic light-emitting display device of achievable narrow frame.

Background technology

Organic light-emitting display device is generally by the array base palte of offer pixel region and non-pixel areas and in order to which display is filled Put and be encapsulated and arranged towards the array base palte and utilize sealant(Such as epoxy resin, glass dust)With the array base palte knot Container or the package substrate composition of conjunction.As shown in figure 1, array base palte 1 in the corresponding region of package substrate 3 with being divided into pixel region Domain(That is AA regions), non-pixel region and packaging plastic region, between the array base palte 1 and package substrate 3 in the non-pixel region For scan drive circuit region, pixel region is located between the array base palte 1 and package substrate 3 with being provided with shape in non-pixel region Into the multi-layer film structure 2 of scan drive circuit.It is connected to multiple light-emitting components between scan line and data wire in a matrix Formed in the pixel region of array base palte 1, light-emitting component is by anode electrode, cathode electrode and is formed in anode electrode and the moon Organic thin film layer composition between pole.Packaging plastic 4 is provided between packaging plastic region, array base palte 1 and package substrate 3.However, The organic light-emitting display device of prior art, its periphery is the distance between from light-emitting zone to glass edge because including turntable driving Circuit region and packaging plastic peak width, cause entire display screen frame wider, and make it that display screen volume is larger.

The content of the invention

In view of this, it is a primary object of the present invention to provide a kind of OLED of achievable narrow frame.

To reach above-mentioned purpose, the present invention provides a kind of narrow frame OLED, and it includes being provided with pixel region The array base palte of domain and non-pixel region and the encapsulation cover body being correspondingly arranged with the array base palte, in array base palte and package Between body and fit in the array base palte and be provided with and form the multi-layer film structure of scan drive circuit, in non-pixel region, by Encapsulation cover body at most film structure is sequentially provided with packaging plastic and compactness membrane structure, wherein, the compactness membrane structure is many The film layer structure that layer is arranged alternately by high index of refraction compactness film and low-refraction compactness film.

The compactness membrane structure is odd-level, and first layer and last layer are high index of refraction compactness film.

The refractive index of wherein one layer low-refraction compactness film is less than the folding of adjacent two layers high index of refraction compactness film Rate is penetrated, wherein the refractive index of a floor height refractive index compactness film is more than the refraction of adjacent two layers low-refraction compactness film Rate.

The refractive index of all floor height refractive index compactness films is identical, the refractive index of all layers of low-refraction compactness film It is identical.

The high index of refraction compactness film is for one kind in titanium dioxide, aluminum oxide and tantalum pentoxide or by wherein extremely Few two kinds of materials are mixed.

The low-refraction compactness film is silica or silicon nitride or mixed by silica with silicon nitride.

The packaging plastic is glass dust or ultraviolet cured adhesive.

The material of the glass dust is magnesia, calcium oxide, barium monoxide, aluminum oxide, silica and one kind in titanium oxide Or mixed by two kinds of materials of wherein at least.

The multi-layer film structure is extended to outside the non-pixel region.

The encapsulation cover body is the package substrate being correspondingly arranged with the array base palte or combined with the array base palte Container.

The present invention is used sets packaging plastic and compactness membrane structure between package substrate and multi-layer film structure, wherein, Compactness membrane structure is the film layer knot that multilayer is arranged alternately by high index of refraction compactness film and low-refraction compactness film Structure, can make scan drive circuit region be located at same region with packaging plastic region, can reduce OLED Border width.

Brief description of the drawings

Fig. 1 is the frame region structural section schematic diagram of conventional organic luminescence display;

Fig. 2 is the specific embodiment schematic cross-section of narrow frame OLED of the present invention.

Embodiment

There is further understanding for ease of structure and the effect that reaches to the present invention, developed simultaneously preferable implement in conjunction with accompanying drawing Example describes in detail as follows.

Fig. 2 is the embodiment cross section structure schematic diagram of narrow frame OLED of the present invention, and Fig. 2 only shows correspondence The display part cross section structure of one Organic Light Emitting Diode unit.The OLED of the present invention includes being provided with In pixel region and the array base palte of non-pixel region 1 and the encapsulation cover body being correspondingly arranged with the array base palte 1, the present invention Encapsulate cover body can be the package substrate 3 being correspondingly arranged with array base palte 1 or the container combined with array base palte 1, as shown in Fig. 2 The present invention by taking package substrate 3 as an example, between array base palte 1 and package substrate 3 and fit on the array base palte provided with formed The multi-layer film structure 2 of scan drive circuit, in non-pixel region, encapsulation is sequentially provided with by package substrate 3 to multi-layer film structure 2 Glue 4 and compactness membrane structure 8.Wherein, the compactness membrane structure 8 is that multilayer is alternately set by high low-refraction compactness film The film layer structure put, the compactness membrane structure 8 is odd-level, and first layer is that high index of refraction compactness is thin with last layer Film.As shown in Fig. 2 the compactness membrane structure 8 is exemplified by three layers, it is high that the compactness membrane structure 8 from top to bottom includes first Refractive index compactness film 5, low-refraction compactness film 6 and the second high index of refraction compactness film 7, or more height The alternate odd-level film layer structure of refractive index, such as five layers, first and third, five layers be high index of refraction compactness film, second, four layers For low-refraction compactness film.High index of refraction compactness film can be TiO2(Titanium dioxide)、Al2O3(Aluminum oxide)With Ta2O5 (Tantalum pentoxide)In one kind or at least the above two kinds of materials constitute high index of refraction mixture, low-refraction compactness film For SiO2(Silica)Or SiNx(Silicon nitride)Or the low-refraction mixture being made up of two kinds of materials, the low refraction of a certain layer The refractive index of rate compactness film is less than the refractive index of adjacent two layers high index of refraction compactness film, and a certain floor height refractive index is fine and close Property film refractive index be more than the refractive index of adjacent two layers low-refraction compactness film, or all floor height refractive index compactness The refractive index of film is identical, and the refractive index of all layers of low-refraction compactness film is identical.Because packaging plastic is located in the present invention Scan drive circuit region, multilayer film knot in the present invention different positioned at OLED edge from conventional packaging plastic Structure may extend to outside non-pixel region, can increase light-emitting zone area.

Packaging plastic 4 in the present invention can be that glass dust can also be ultraviolet cured adhesive(UV glue), form glass dust Material can be magnesia, calcium oxide, barium monoxide, aluminum oxide, silica, the one of which such as titanium oxide or by above-mentioned At least two materials are mixed.Exemplified by using glass dust encapsulation as packaging plastic, optical maser wavelength is commonly used for 808nm, the compactness Film structure thickness is set to λ/4=202nm, and index requirements are that high/low/height is arranged alternately and film layer number is odd number.Laser is passed through Cross multilayer film back reflection rate and carry out calculating assessment according to equation below:

Wherein, R2s+1For 2S+1 layers of reflectivity, n0 is air refraction, and nh is high refractive index layer refractive index, and n1 is Low-index film refractive index, ng is glass refraction, and S is S tunics layer.By can be calculated reflectivity by taking 3 tunics as an example For 90%;By can be calculated reflectivity for 93% by taking 5 tunics as an example;Film layer more multiple reflection effect is better, such as anti-using 17 tunics Rate is penetrated up to 99.99%.

If packaging plastic 4 uses ultraviolet cured adhesive, its UV optical wavelength is commonly used for 365nm;The compactness film structure thickness It is disposed as λ/4=92nm;Index requirements are that high/low/height is arranged alternately and film layer number is odd number.Laser is after multilayer film Reflectivity is estimated according to above-mentioned formula:By can be calculated reflectivity for 90% by taking 3 tunics as an example;Pass through by taking 5 tunics as an example Can be calculated reflectivity is 93%;Film layer more multiple reflection effect is better, such as using 17 tunic reflectivity up to 99.99%.

By packaging plastic in the present invention(Glass dust or ultraviolet cured adhesive)It is placed in GIP circuits and signal lead, that is, is located at On the array base palte and package substrate of non-pixel region, packaging plastic region of the prior art can be removed, therefore can realize narrow The OLED of frame, while passing through the multilayer for setting high low-refraction to be alternately arranged between packaging plastic and GIP circuits Film compactness membrane structure, can be achieved high reflectance, can both protect lower circuit, and the irradiation effect of laser or UV light can be improved again Rate, so as to improve the curing performance of packaging plastic.Multilayer film in the present invention uses high compactness material, it is ensured that high reflectance it is same When, improve water oxygen barrier.

The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair Bright to be described in detail, any those of ordinary skill in the art is not departing from the spirit and scope of the present invention Interior, when can make a little change and retouching, therefore protection scope of the present invention depending on the right person of defining when being defined.

Claims (9)

1. a kind of narrow frame OLED, it include being provided with pixel region and non-pixel region array base palte and The encapsulation cover body being correspondingly arranged with the array base palte, the array base palte and encapsulation cover body between and fit on the array base palte It is many to this by the encapsulation cover body provided with the multi-layer film structure for forming scan drive circuit, it is characterised in that in non-pixel region Film structure is sequentially provided with packaging plastic and compactness membrane structure, the packaging plastic region and scan drive circuit region position In the same area, wherein, the compactness membrane structure is that multilayer is thin by high index of refraction compactness film and low-refraction compactness The film layer structure that film is arranged alternately, the multi-layer film structure is extended to outside the non-pixel region.
2. narrow frame OLED as claimed in claim 1, it is characterised in that the compactness membrane structure is strange Several layers, and first layer and last layer are high index of refraction compactness film.
3. narrow frame OLED as claimed in claim 2, it is characterised in that wherein one layer low-refraction compactness The refractive index of film is less than the refractive index of adjacent two layers high index of refraction compactness film, wherein a floor height refractive index compactness film Refractive index be more than adjacent two layers low-refraction compactness film refractive index.
4. narrow frame OLED as claimed in claim 2, it is characterised in that all floor height refractive index compactness are thin The refractive index of film is identical, and the refractive index of all layers of low-refraction compactness film is identical.
5. narrow frame OLED as claimed in claim 1, it is characterised in that the high index of refraction compactness film Mixed for one kind in titanium dioxide, aluminum oxide and tantalum pentoxide or by two kinds of materials of wherein at least.
6. narrow frame OLED as claimed in claim 1, it is characterised in that the low-refraction compactness film Mixed for silica or silicon nitride or by silica with silicon nitride.
7. narrow frame OLED as claimed in claim 1, it is characterised in that the packaging plastic is glass dust or purple Outer optic-solidified adhesive.
8. narrow frame OLED as claimed in claim 7, it is characterised in that the material of the glass dust is oxidation Magnesium, calcium oxide, barium monoxide, aluminum oxide, silica is mixed with one kind in titanium oxide or by two kinds of materials of wherein at least.
9. narrow frame OLED as claimed in claim 1, it is characterised in that the encapsulation cover body is and the battle array Package substrate that row substrate is correspondingly arranged or the container combined with the array base palte.
CN201310677067.4A 2013-12-13 2013-12-13 A kind of narrow frame OLED CN104716266B (en)

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CN104716266B true CN104716266B (en) 2017-10-17

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106129092A (en) * 2016-07-26 2016-11-16 昆山工研院新型平板显示技术中心有限公司 Frame of a kind of display screen and preparation method thereof, display screen
CN106298812B (en) * 2016-09-30 2019-03-12 昆山国显光电有限公司 Array substrate and its manufacturing method, display panel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102893700A (en) * 2010-10-01 2013-01-23 日本电气硝子株式会社 Electric device package
CN103389588A (en) * 2013-07-30 2013-11-13 合肥京东方光电科技有限公司 Display panel and packaging method thereof and liquid crystal display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102893700A (en) * 2010-10-01 2013-01-23 日本电气硝子株式会社 Electric device package
CN103389588A (en) * 2013-07-30 2013-11-13 合肥京东方光电科技有限公司 Display panel and packaging method thereof and liquid crystal display device

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