CN203134801U

CN203134801U - OLED (organic light-emitting diode) display apparatus

Info

Publication number: CN203134801U
Application number: CN 201220622357
Authority: CN
Inventors: 金东换; 李周炫; 洪瑞
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2012-11-21
Filing date: 2012-11-21
Publication date: 2013-08-14
Anticipated expiration: 2022-11-21

Abstract

The utility model discloses an OLED display device, which relates to liquid crystal display technology. At least one layer of protective layer and sealing glue are arranged outside the position of the film, so as to prevent moisture intrusion, reduce the frame outside the film when the OLED is packaged, and reduce the It reduces the difficulty of the process and improves the overall production efficiency and yield.

Description

A kind of OLED display unit

Technical field

The utility model relates to lcd technology, relates in particular to a kind of OLED display unit.

Background technology

Carrying out OLED(Organic Light-Emitting Diode, when Organic Light Emitting Diode) encapsulating, usually adopt cover film (film) method to encapsulate, as shown in Figure 1, array base palte 101 is provided with organic luminous layer 102, and this method for packing is cover film 103 on organic luminous layer 102, film 103 is provided with base plate for packaging 104, because the existence of film 103 can stop the intrusion of moisture and air, realize the OLED encapsulation.

But, encapsulate by the method for this cover film, in order to ensure reliability, under the situation as the Mobile product, its frame (bezel) needs the above width of cover plate 2mm at least, is unfavorable for utilance and the production efficiency of Glass substrate.And because frame is bigger, is unfavorable for the realization of narrow frame, thereby can't satisfies consumer's demand for experience.

The utility model content

The utility model embodiment provides a kind of OLED display unit, to realize reducing the frame of OLED encapsulation.

A kind of OLED display unit comprises: array base palte, be arranged on the OLED device on the described array base palte, be arranged on the film in described OLED device upside and the outside, and be arranged on the base plate for packaging on the described film, also comprise:

At least layer protective layer and envelope frame glue are arranged on the film outside between described array base palte and the described base plate for packaging.

The utility model embodiment provides a kind of OLED display unit; in the film position arranged outside protective layer and the envelope frame glue of one deck at least, thereby prevent that moisture from invading the frame in the film outside when having reduced the OLED encapsulation; reduce technology difficulty, improved whole production efficiency and yield.

Description of drawings

Fig. 1 is OLED display device structure schematic diagram in the prior art;

The OLED method for packing structural representation that Fig. 2 provides for the utility model embodiment;

The making view of the corresponding OLED method for packing that Fig. 3 a-Fig. 3 f provides for the utility model embodiment;

The OLED display device structure schematic diagram that Fig. 4 provides for the utility model embodiment.

Embodiment

As shown in Figure 2, the OLED method for packing that the utility model embodiment provides comprises:

Step S201, the outside of corresponding OLED device area forms first protective layer (Passivation Layer) pattern on array base palte;

Step S202, form organic luminous layer at the corresponding OLED device area of array base palte;

Step S203, the outside of corresponding OLED device area forms the second protective layer pattern on base plate for packaging;

Step S204, form packaging film at the corresponding OLED device area of the base plate for packaging that is formed with the second protective layer pattern;

Step S205, assembly array substrate and base plate for packaging also apply envelope frame glue.

Wherein, in step S201, the outside of corresponding OLED device area can comprise:

Around the corresponding OLED device area;

Perhaps a side of corresponding OLED device area, both sides or three sides.

Owing to be provided with the protective layer pattern at array base palte and base plate for packaging; and filled envelope frame glue; so can be further with the preferable intrusion that prevents moisture and air of less thickness, and then can reduce the seal ring thickness in the oled layer outside, reduced technology difficulty.

Before step S201, can be formed for driving the TFT layer of organic luminous layer earlier at the corresponding OLED device area of array base palte, organic luminous layer can be specially oled layer, at this moment:

Corresponding step S201; shown in Fig. 3 a; array base palte 301 is provided with TFT layer 302; TFT layer arranged outside has layer protective layer 303 at least; corresponding step S202 is shown in Fig. 3 b, on TFT layer 302; be provided with oled layer 304; corresponding step S203, shown in Fig. 3 c, the film position arranged outside on base plate for packaging 305 layer protective layer 303 at least; corresponding step S204; shown in Fig. 3 d, after protective layer 303 was set, the film position on base plate for packaging 305 had attached film 306; corresponding step S205; shown in Fig. 3 e and Fig. 3 f, among Fig. 3 e, shown the state behind assembly array substrate and the base plate for packaging; among Fig. 3 f, in the slit of protective layer 303, applied envelope frame glue 307.

In step S205, can apply envelope frame glue earlier, assembly array substrate and base plate for packaging also can apply envelope frame glue again behind assembly array substrate and base plate for packaging again.

Concrete, apply envelope frame glue at base plate for packaging in the ban, when assembly array substrate and base plate for packaging, step S205 is specially again: after the zone of corresponding second protective layer on the base plate for packaging applies envelope frame glue, assembly array substrate and base plate for packaging;

Apply envelope frame glue at array base palte in the ban, when assembly array substrate and base plate for packaging, step S205 is specially again: after the zone of corresponding first protective layer on the array base palte applies envelope frame glue, and assembly array substrate and base plate for packaging; Perhaps

When behind assembly array substrate and base plate for packaging, when applying envelope frame glue again, step S205 is specially: assembly array substrate and base plate for packaging, and at the zone of corresponding first protective layer and second protective layer coating envelope frame glue.

Further, when forming the first protective layer pattern in the OLED of the array base palte device area outside, can be undertaken by composition technology, concrete, can form the first protective layer pattern in the OLED of the array base palte device area outside by photoetching and lithographic method.

Form organic luminous layer at the corresponding OLED device area of array base palte, specifically comprise:

At the corresponding OLED device area deposition organic layer of array base palte and cathode layer.

In the utility model embodiment; can form the second protective layer pattern by the outside of composition technology corresponding OLED device area on base plate for packaging equally; certainly; those skilled in the art also can be according to actual conditions, make otherwise that the outside of corresponding OLED device area forms the second protective layer pattern on base plate for packaging.

In order better to prevent the moisture intrusion, it is bigger that the thickness of protective layer pattern need arrange as far as possible, and in the utility model embodiment, its thickness all gets final product more than or equal to 1 μ m.

In order to prevent that better moisture from invading, the protective layer pattern can be set to dam shape pattern, and namely sectional view is the pattern of rectangle, and certainly, those skilled in the art can be set to other shape according to actual conditions, and is for example trapezoidal, cylindrical etc.

The first protective layer pattern can be crisscross arranged with the second protective layer pattern, and at this moment, the passage that moisture is invaded is bending, can further improve the effect of shielding moisture, and then better prevents the invasion of moisture and oxygen.

Among the utility model embodiment, employed envelope frame glue can adopt acrylate envelope frame glue, also can adopt other envelope frame glue according to actual conditions.

At this moment, in step S205, can apply envelope frame glue in the following manner:

Behind assembly array substrate and base plate for packaging, between array base palte and base plate for packaging, apply envelope frame glue by point gum machine, make the inner space between array base palte and the base plate for packaging fill envelope frame glue according to the osmotic pressure principle.

The utility model embodiment also provides a kind of OLED display unit, the OLED method for packing manufacturing that this display unit provides by the utility model embodiment.

The utility model embodiment also provides a kind of OLED display unit, as shown in Figure 4, comprising: array base palte 401, be arranged on the OLED device 402 on the array base palte 401, be arranged on the film 403 in OLED device 402 upsides and the outside, and be arranged on base plate for packaging 404 on the film 403, also comprise:

At least layer protective layer 405 and envelope frame glue 406 are arranged on film 403 outsides between array base palte 401 and the base plate for packaging 404.

Usually, OLED device 402 comprises organic luminous layer and the TFT layer between organic luminous layer and array base palte 401, and the TFT layer is used for driving organic luminous layer.

Wherein, organic luminous layer also comprises: anode, organic layer and negative electrode.

Owing to have the protective layer that can prevent that moisture from invading in the film outside, therefore can reduce the frame of film.

Further, protective layer is dam shape, is arranged on described array base palte and/or the base plate for packaging.

Protective layer can be designed as the dam shape structure that is arranged on base plate for packaging and the array base palte, makes protective layer to bring into play better and prevents the barrier action that moisture is invaded.

Protective layer and the protective layer on the array base palte on the array base palte can further be crisscross arranged, thereby better prevent the moisture intrusion.

Envelope frame glue is filled between each layer protective layer, and more strictly protective film prevents the moisture intrusion.

Wherein, envelope frame glue can be specially acrylate envelope frame glue.

And owing to reduced frame, this OLED display unit can be applied to various products, can also be applied to Resilient product.

Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.

Claims

1. An OLED display device, comprising: an array substrate, an OLED device arranged on the array substrate, a thin film arranged on the upper side and the outside of the OLED device, and an encapsulation substrate arranged on the thin film, characterized in It also includes:

At least one protective layer and sealant are arranged on the outside of the film between the array substrate and the packaging substrate.

2 . The display device according to claim 1 , wherein the protective layer is in a dam shape and is disposed on the array substrate and/or the packaging substrate.

3. The display device according to claim 2, wherein the protection layers on the array substrate and the protection layers on the array substrate are alternately arranged.

4. The display device according to claim 1, wherein the frame sealant is specifically an acrylic frame sealant.

5. The display device according to claim 1, wherein the OLED device specifically comprises:

a TFT layer disposed on the array substrate; and

an organic light-emitting layer arranged on the TFT layer.

6. The display device according to claim 5, wherein the organic light-emitting layer specifically comprises:

Anode, organic layer and cathode.