CN107994133B - Organic light emitting display - Google Patents
Organic light emitting display Download PDFInfo
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- CN107994133B CN107994133B CN201711297461.XA CN201711297461A CN107994133B CN 107994133 B CN107994133 B CN 107994133B CN 201711297461 A CN201711297461 A CN 201711297461A CN 107994133 B CN107994133 B CN 107994133B
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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
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
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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
- H10K50/84—Passivation; Containers; Encapsulations
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Abstract
The present invention relates to a kind of organic light emitting displays.Above-mentioned organic light emitting display includes cover board, the first encapsulation pattern, the second encapsulation pattern and bottom plate；Cover board offers the first opening；First encapsulation pattern is set on cover board；Second encapsulation pattern is set on cover board, and the second encapsulation pattern is around the first opening, and the first encapsulation pattern is around the second encapsulation pattern；Bottom plate includes non-display area and display area, and the second opening corresponding with the first opening is offered on non-display area；The first encapsulation pattern of sintering and the second encapsulation pattern, cover board is sealed with bottom plate, fits in sunk area on the second encapsulation pattern, and bottom plate fits on the first encapsulation pattern, and display area is sealed between the first encapsulation pattern and the second encapsulation pattern；Due to can be closely adhered between sunk area and the second encapsulation pattern, the bonding force between bottom plate and the second encapsulation pattern is improved, makes bottom plate good bond on the second encapsulation pattern.
Description
Technical field
The present invention relates to the technical fields of display equipment, more particularly to a kind of organic light emitting display.
Background technique
Traditional light emitting display is packaged by the way of laser sintered, to drop the cover board and bottom plate of light emitting display
It is adhered to together.However, extraneous moisture and oxygen infiltrates into the display area of the light emitting display after encapsulation, make organic hair
The display area of light display screen occurs short circuit and even damages, to keep the service life of organic light emitting display lower.
Summary of the invention
Based on this, it is necessary to for the lower problem of the service life of organic light emitting display, provide a kind of organic light emission
Display screen.
A kind of organic light emitting display, comprising:
Cover board offers the first opening；
First encapsulation pattern, is set on the cover board；
Second encapsulation pattern, is set on the cover board, and the second encapsulation pattern is open around described first, and described first
Pattern is encapsulated around the second encapsulation pattern；And
Bottom plate, including non-display area and display area, offer on the non-display area and first opening pair
The second opening answered, the non-display area are equipped with sunk area corresponding with the second encapsulation pattern；The viewing area
Domain surrounds the non-display area；The first encapsulation pattern and the second encapsulation pattern sintering setting, by the cover board
It is sealed with the bottom plate, fits in the sunk area on the second encapsulation pattern, the bottom plate fits in described
On first encapsulation pattern, and the display area is sealed between the first encapsulation pattern and the second encapsulation pattern.
Above-mentioned organic light emitting display offers the first opening, the first encapsulation pattern and the second encapsulation pattern on cover board
It is set on cover board, around the first opening, the non-display area of bottom plate is equipped with and the second encapsulation pattern pair the second encapsulation pattern
The sunk area answered, the first encapsulation pattern of sintering and the second encapsulation pattern, cover board and bottom plate are sealed in together, depressed area is made
Domain fits on the second encapsulation pattern, and bottom plate fits on the first encapsulation pattern, and display area is sealed in the first encapsulation pattern
Between the second encapsulation pattern, due to offering the second opening corresponding with the first opening on bottom plate, make the first opening and second
Open communication；Due to can be closely adhered between sunk area and the second encapsulation pattern, bottom plate and the second encapsulation pattern are improved
Between bonding force, make bottom plate good bond in second encapsulation pattern on, and due to first encapsulation pattern surround the second package drawing
Case, and display area surrounds non-display area makes extraneous moisture and oxygen be not easy to infiltrate into light emitting display after encapsulation
In display area, the problem of short circuit even damages occurs for the display area for avoiding organic light emitting display, improves organic hair
The service life of optical screen.
The first encapsulation pattern and the second encapsulation pattern are printed by silk screen printing process in one of the embodiments,
It brushes on the cover board, so that the first encapsulation pattern and the second encapsulation pattern are firmly attached on cover board.
It opens up in one of the embodiments, fluted on the sunk area, sunk area is made preferably to fit in
On two encapsulation patterns, better ensures that the bonding force between bottom plate and the second encapsulation pattern, avoid extraneous moisture and oxygen not
In the display area of light emitting display after easily infiltrating into encapsulation.
The cross-sectional shape triangular shape of the groove in one of the embodiments,.
The cross-sectional shape of the groove is in quadrilateral shape in one of the embodiments,.
The cross-sectional shape of the groove is in rounded shape in one of the embodiments,.
The display area includes the driving circuit and pixel around the non-display area in one of the embodiments,
Array；The driving circuit includes thin film transistor (TFT), and the thin film transistor (TFT) includes the buffering successively formed on the bottom plate
Insulating layer, polysilicon layer, gate insulation layer, gate electrode layer, interlayer insulating film, source-drain electrode layer, protective layer, flatness layer and positive electrode
Layer, the source-drain electrode layer are arranged in the gate insulation layer and the interlayer insulating film, and the source-drain electrode layer and institute respectively
State polysilicon layer electrical connection；The pixel array is set to the side away from the flatness layer of the anode electrode layer, makes to drive
The work of circuit drives pixel array is shown with controlling display area.
The interlayer insulating film includes the first interlayer insulating film and the second interlayer insulating film in one of the embodiments,
First interlayer insulating film is adjacent to the gate electrode layer, and second interlayer insulating film is adjacent to the source-drain electrode layer, to mention
Insulating properties between high gate electrode layer and source-drain electrode layer.
The thin film transistor (TFT) further includes pixel layer in one of the embodiments, and the pixel layer is wrapped in the sun
It is abutted on electrode layer and with the flatness layer.
The driving circuit further includes storage in one of the embodiments, under the storage includes
Electrode layer and upper electrode layer, the lower electrode layer and the upper electrode layer are electrically connected with the source-drain electrode layer.
Detailed description of the invention
Fig. 1 is the schematic diagram of the organic light emitting display of an embodiment；
Fig. 2 is the cross-sectional view of organic light emitting display shown in Fig. 1；
Fig. 3 is the schematic diagram of the bottom plate of organic light emitting display shown in Fig. 2, the first encapsulation pattern and the second encapsulation pattern；
Fig. 4 is showing for the bottom plate of the organic light emitting display of another embodiment, the first encapsulation pattern and the second encapsulation pattern
It is intended to；
Fig. 5 is showing for the bottom plate of the organic light emitting display of another embodiment, the first encapsulation pattern and the second encapsulation pattern
It is intended to；
Fig. 6 is showing for the bottom plate of the organic light emitting display of another embodiment, the first encapsulation pattern and the second encapsulation pattern
It is intended to；
Fig. 7 is the display area of organic light emitting display and the structural schematic diagram of non-display area shown in Fig. 1.
Specific embodiment
To facilitate the understanding of the present invention, organic light emitting display is more fully retouched below with reference to relevant drawings
It states.The preferred embodiment of organic light emitting display is given in attached drawing.But organic light emitting display can be with many different
Form is realized, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to organic hair
The disclosure of light display screen is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is 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 for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Only it is in the term used in the description of organic light emitting display herein
The purpose of description specific embodiment, it is not intended that in the limitation present invention.Term " and or " used herein includes one
Or any and all combinations of multiple relevant listed items.
For example, a kind of organic light emitting display includes: cover board, the first encapsulation pattern, the second encapsulation pattern and bottom plate；Example
Such as, cover board offers the first opening；For example, the first encapsulation pattern is set on the cover board；For example, the second encapsulation pattern is set to institute
It states on cover board；For example, the second encapsulation pattern is around first opening；For example, the first encapsulation pattern is around described
Second encapsulation pattern；For example, bottom plate includes non-display area and display area；For example, offered on the non-display area with
First opening corresponding second is open；For example, the non-display area is equipped with corresponding with the second encapsulation pattern
Sunk area；For example, the display area surrounds the non-display area；For example, the first encapsulation pattern and described second
Pattern sintering setting is encapsulated, the cover board and the bottom plate are sealed, the sunk area is made to fit in described second
It encapsulates on pattern；For example, the bottom plate fits on the first encapsulation pattern, and the display area is sealed in described first
It encapsulates between pattern and the second encapsulation pattern.For example, a kind of organic light emitting display include: cover board, first encapsulation pattern,
Second encapsulation pattern and bottom plate；Cover board offers the first opening；First encapsulation pattern is set on the cover board；Second package drawing
Case is set on the cover board, and the second encapsulation pattern is around first opening, and the first encapsulation pattern is around described the
Two encapsulation patterns；Bottom plate includes non-display area and display area, is offered on the non-display area and first opening
Corresponding second opening, the non-display area are equipped with sunk area corresponding with the second encapsulation pattern；The display
Region surrounds the non-display area；The first encapsulation pattern and the second encapsulation pattern sintering setting, by the lid
Plate is sealed with the bottom plate, fits in the sunk area on the second encapsulation pattern, the bottom plate fits in institute
It states on the first encapsulation pattern, and the display area is sealed between the first encapsulation pattern and the second encapsulation pattern.
As shown in Figures 1 and 2, the organic light emitting display 10 of an embodiment include cover board 100, first encapsulate pattern 200,
Second encapsulation pattern 300 and bottom plate 400.Cover board offers the first opening 110；First encapsulation pattern is set on the cover board；
Second encapsulation pattern is set on the cover board, and the second encapsulation pattern is around first opening, the first encapsulation pattern
Around the second encapsulation pattern；Bottom plate includes non-display area 400a and display area 400b.It is opened on the non-display area
Equipped with the second opening 410 corresponding with first opening.The non-display area is equipped with and the second encapsulation pattern pair
The sunk area 420 answered.The display area surrounds the non-display area.The first encapsulation pattern and second encapsulation
First encapsulation pattern and the second encapsulation pattern are sintered, the first encapsulation pattern are made to fit in bottom plate by pattern sintering setting
On, and the second encapsulation pattern fits in sunk area, is also that the sintering first encapsulation pattern and described second encapsulate pattern,
The cover board and the bottom plate to be sealed, fit in the sunk area on the second encapsulation pattern.The bottom
Plate fits on the first encapsulation pattern, and the display area is sealed in the first encapsulation pattern and second encapsulation
Between pattern.
Above-mentioned organic light emitting display offers the first opening, the first encapsulation pattern and the second encapsulation pattern on cover board
It is set on cover board, around the first opening, the non-display area of bottom plate is equipped with and the second encapsulation pattern pair the second encapsulation pattern
The sunk area answered, the first encapsulation pattern of sintering and the second encapsulation pattern, cover board and bottom plate are sealed in together, depressed area is made
Domain fits on the second encapsulation pattern, and bottom plate fits on the first encapsulation pattern, and display area is sealed in the first encapsulation pattern
Between the second encapsulation pattern, due to offering the second opening corresponding with the first opening on bottom plate, make the first opening and second
Open communication；Due to can be closely adhered between sunk area and the second encapsulation pattern, bottom plate and the second encapsulation pattern are improved
Between bonding force, make bottom plate good bond in second encapsulation pattern on, and due to first encapsulation pattern surround the second package drawing
Case, and display area surrounds non-display area makes extraneous moisture and oxygen be not easy to infiltrate into light emitting display after encapsulation
In display area, the problem of short circuit even damages occurs for the display area for avoiding organic light emitting display, improves organic hair
The service life of optical screen.
For example, the first opening and the second opening are processed by way of machining, it is opened in the first opening
On cover board, and second is opened on the non-display area of bottom plate.First opening and/or the second opening can be the of cover board
Two encapsulation patterns open up before or after being bonded in the sunk area of bottom plate, make the processing of the first opening and the second opening more
It is convenient.For example, the first opening and the second opening are in rounded shape, and the area equation of the area of the first opening and the second opening,
In other embodiments, the first opening and the second opening can be with square-shaped or triangle.For example, the first opening and second
It is open in rounded shape, the first encapsulation pattern and the second encapsulation pattern are annular in shape, and the center of circle of first annular pattern and the
The center of circle of second ring pattern is overlapped, and the center of circle of first annular pattern is overlapped with the center of circle of the first opening, makes the first encapsulation pattern
Inward flange and the outer peripheral distance of the second encapsulation pattern are equal everywhere, so as to be better protected from extraneous moisture and oxygen
In the display area of light emitting display after infiltrating into encapsulation.As shown in figure 3, for example, display area is annular in shape, and viewing area
Domain is located between the first encapsulation pattern and the second encapsulation pattern；After cover board and bottom plate seal, display area is sealed in first
It encapsulates between pattern and the second encapsulation pattern, i.e., the first encapsulation pattern surrounds display area, and the second encapsulation pattern is shown area
Domain surrounds, so that display area be made to be sealed between the first encapsulation pattern and the second encapsulation pattern.
The first encapsulation pattern and the second encapsulation pattern are printed by silk screen printing process in one of the embodiments,
It brushes on the cover board, so that the first encapsulation pattern and the second encapsulation pattern are firmly attached on cover board.For example, being shone using laser
The mode for penetrating heating heats the first encapsulation pattern and the second encapsulation pattern respectively, and the first encapsulation pattern and second is made to encapsulate pattern
In state is softened or melted, it is connected to cover board on bottom plate by the first encapsulation pattern and the second encapsulation pattern, thus will lid
Plate is sealed with bottom plate.For example, the material of the first encapsulation pattern is glass powder or shadowless glue.In the present embodiment, the first envelope
The material for filling pattern is glass powder；For example, the material of the second encapsulation pattern is glass powder or shadowless glue.In the present embodiment,
The material of two encapsulation patterns is glass powder.
As shown in Fig. 2, open up fluted 422 on the sunk area in one of the embodiments, make sunk area compared with
It fits in well on the second encapsulation pattern, better ensures that the bonding force between bottom plate and the second encapsulation pattern, avoid the external world
Moisture and oxygen are not easy in the display area for infiltrating into the light emitting display after encapsulation.When cover board and bottom plate sintering encapsulate, lead to
The second encapsulation pattern of laser heating and the first encapsulation pattern are crossed, the first encapsulation pattern and the second encapsulation pattern absorb luminous energy heating
And soften or even melt, the second encapsulation pattern part of melting flows into the groove of sunk area, so that the second encapsulation pattern is certainly
So cooling and solidifying is in groove, so that being bonded in together between bottom plate and the second encapsulation pattern.As shown in figure 3, for example, described recessed
Fall into region it is annular in shape, and the center location of sunk area with second encapsulate pattern center location be overlapped, make sunk area compared with
It is bonded in well on the second encapsulation pattern.As shown in figure 4, the cross-sectional shape of the groove is in one of the embodiments,
Triangle.For example, the number of the groove be it is multiple, multiple grooves are spaced apart, and are preferably bonded sunk area
In on the second encapsulation pattern；For another example, multiple grooves are in multiple rows of distribution, and sunk area is made preferably to be bonded in the second encapsulation pattern
On.For another example, one of diameter parallel of the orientation of every row's triangle and sunk area, bonds sunk area preferably
In on the second encapsulation pattern.Referring again to shown in Fig. 3 and Fig. 5, it will be understood that the cross section of each groove is not limited only in triangle
Shape, in other embodiments, the cross-sectional shape of each groove can also be in quadrilateral shape, specifically, the groove
Cross-sectional shape is rectangular or square shape.For example, the number of the groove is multiple, multiple groove intervals point
Cloth is preferably bonded sunk area on the second encapsulation pattern；For another example, the extending direction of each groove is parallel to each other,
Multiple grooves are made to be distributed in sunk area side by side, so that sunk area be made to be bonded on the second encapsulation pattern securely.For another example, often
The extending direction of a groove and one of diameter parallel of sunk area, make sunk area more firmly be bonded in the second encapsulation
On pattern.For another example, the cross-sectional shape of the groove is in multilateral shape.As shown in fig. 6, for another example, the cross section shape of the groove
Shape is in rounded shape；For example, the number of the groove be it is multiple, multiple grooves are spaced apart, and paste sunk area preferably
Together on the second encapsulation pattern；The center location of multiple grooves with second encapsulation pattern the center of circle is overlapped, make sunk area and
Second encapsulation pattern securely connects, and extraneous moisture or oxygen is preferably avoided to enter display area.
As shown in fig. 7, the display area 400b includes around the non-display area in one of the embodiments,
Driving circuit 430 and pixel array 440；The driving circuit includes thin film transistor (TFT) 432, and the thin film transistor (TFT) includes successively
Buffer insulation layer 4321, polysilicon layer 4322, gate insulation layer 4323, the gate electrode layer 4324, interlayer formed on the bottom plate
Insulating layer 4325, source-drain electrode layer 4326, protective layer 4327, flatness layer 4328 and anode electrode layer 4329, the source-drain electrode layer
It is arranged in the gate insulation layer and the interlayer insulating film respectively, and the source-drain electrode layer is electrically connected with the polysilicon layer；
The pixel array is set to the side away from the flatness layer of the anode electrode layer, and driving circuit is made to drive pixel array work
Work is shown with controlling display area.For example, sunk area is accumulated by the film layer of driving circuit and pixel array, due to
Sunk area and the second encapsulation pattern are bonded in together, with encapsulation cover plate and bottom plate, avoid extraneous moisture or oxygen from entering aobvious
Show region, while and there is the driving circuit for driving display area to be shown and pixel array, i.e. sunk area to play simultaneously
The function of driving and sealing, to keep the structure of organic light emitting display more compact.For another example, sunk area include organic film,
At least one of metal film and insulating film.For another example, buffer insulation layer, polysilicon layer, gate insulation layer, gate electrode layer, interlayer are exhausted
Edge layer, source-drain electrode layer, protective layer, flatness layer and anode electrode layer are stacked, and keep the structure of thin film transistor (TFT) more compact.Example
Such as, source-drain electrode layer includes source electrode layer and drain electrode layer, and source electrode layer is electrically connected with polysilicon layer with drain electrode layer, and source
Electrode layer is arranged in the gate insulation layer and the interlayer insulating film respectively, drain electrode layer be arranged in respectively the gate insulation layer and
The interlayer insulating film is electrically connected source-drain electrode layer with polysilicon layer and anode electrode layer respectively, and since pixel array is arranged
In the side away from flatness layer of anode electrode layer, it is electrically connected anode electrode layer with pixel array.For another example, anode electrode layer is arranged in flat
Smooth layer and protective layer, to be electrically connected with another source-drain electrode layer.
The thin film transistor (TFT) further includes pixel layer 4330 in one of the embodiments, and the pixel layer is wrapped in institute
It states in anode electrode layer and is abutted with the flatness layer.For another example, the pixel layer includes pixel defining layer and pixel space layer, described
Pixel defining layer wrap up the anode electrode layer and with it is described flat, the pixel space layer is located at deviating from for the pixel defining layer
The side of the anode electrode layer.For another example, the pixel space layer and the pixel defining layer are integrally formed, and make the structure of pixel layer
It is more compact, to keep the structure of organic light emitting display more compact.
The interlayer insulating film includes that the first interlayer insulating film 4325a and the second interlayer are exhausted in one of the embodiments,
Edge layer 4325b, first interlayer insulating film is adjacent to the gate electrode layer, and second interlayer insulating film is adjacent to the source and drain electricity
Pole layer, to improve the insulating properties between gate electrode layer and source-drain electrode layer.For another example, the first interlayer insulating film and the second layer insulation
Layer stackup setting, keeps the structure of interlayer insulating film more compact.The driving circuit further includes depositing in one of the embodiments,
Storage container 434, the storage include lower electrode layer 4342 and upper electrode layer 4344, the lower electrode layer and gate electrode
Layer electrical connection, the upper electrode layer are electrically connected with the Data In-Line of the display screen.In the present embodiment, lower electrode layer 4342
It is made of one structure with gate electrode layer 4324, i.e. lower electrode layer 4342 and gate electrode layer 4324 shares, and is detailed in Fig. 7.For example, described
Interlayer insulating film includes the first interlayer insulating film and the second interlayer insulating film, and first interlayer insulating film is adjacent to the gate electrode
Layer, second interlayer insulating film is adjacent to the source-drain electrode layer, to improve the insulation between gate electrode layer and source-drain electrode layer
Property；The driving circuit further includes storage 434, and the storage includes lower electrode layer 4342 and upper electrode layer
4344, the lower electrode layer is electrically connected with gate electrode layer, and the upper electrode layer is electrically connected with the Data In-Line of the display screen,
And upper electrode layer is set on the second interlayer insulating film, lower electrode layer is set on the first interlayer insulating film, makes the structure of driving circuit
It is more compact.For another example, lower electrode layer and gate electrode layer share, and keep the structure of driving circuit more compact.For example, the interlayer is exhausted
Edge layer includes the first interlayer insulating film and the second interlayer insulating film, and first interlayer insulating film is adjacent to the gate electrode layer, institute
The second interlayer insulating film is stated adjacent to the source-drain electrode layer, to improve the insulating properties between gate electrode layer and source-drain electrode layer；Institute
Stating driving circuit further includes storage, and the storage includes that lower electrode layer and upper electrode layer are electrically connected with gate electrode layer
It connecing, the upper electrode layer is electrically connected with the Data In-Line of the display screen, and upper electrode layer is set on the second interlayer insulating film,
Lower electrode layer is set on the first interlayer insulating film, keeps the structure of driving circuit more compact；The thin film transistor (TFT) further includes picture
Plain layer, the pixel layer are wrapped in the anode electrode layer and abut with the flatness layer；The pixel layer includes pixel definition
Layer and pixel space layer, the pixel defining layer are wrapped up the anode electrode layer and are abutted with the flatness layer, the pixel space
Layer is located at the side away from the anode electrode layer of the pixel defining layer.For another example, lower electrode layer and gate electrode layer share, and make to drive
The structure of dynamic circuit is more compact.For another example, pixel array further include the first middle layer 441 being set in turn in anode electrode layer,
Luminous material layer 442, the second middle layer 443, cathode electrode layer 444 and photosphere 445 out.For another example, it is offered on the sunk area
Multiple grooves, multiple grooves are spaced apart along the sunk area, are preferably bonded sunk area in the second package drawing
In case, better ensures that the bonding force between bottom plate and the second encapsulation pattern, extraneous moisture and oxygen is avoided to be not easy to infiltrate into
In the display area of light emitting display after encapsulation；It is offered on luminous material layer and avoids hole correspondingly with multiple grooves,
So that luminous material layer is avoided multiple grooves of sunk area, avoids the problem for making luminous material layer that short circuit occur.
Above-mentioned organic light emitting display offers the first opening, the first encapsulation pattern and the second encapsulation pattern on cover board
It is set on cover board, around the first opening, the non-display area of bottom plate is equipped with and the second encapsulation pattern pair the second encapsulation pattern
The sunk area answered, the first encapsulation pattern of sintering and the second encapsulation pattern, cover board and bottom plate are sealed in together, depressed area is made
Domain fits on the second encapsulation pattern, and bottom plate fits on the first encapsulation pattern, and display area is sealed in the first encapsulation pattern
Between the second encapsulation pattern, due to offering the second opening corresponding with the first opening on bottom plate, make the first opening and second
Open communication；Due to can be closely adhered between sunk area and the second encapsulation pattern, bottom plate and the second encapsulation pattern are improved
Between bonding force, make bottom plate good bond in second encapsulation pattern on, and due to first encapsulation pattern surround the second package drawing
Case, and display area surrounds non-display area makes extraneous moisture and oxygen be not easy to infiltrate into light emitting display after encapsulation
In display area, the problem of short circuit even damages occurs for the display area for avoiding organic light emitting display, improves organic hair
The service life of optical screen.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, 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, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and 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 protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of organic light emitting display characterized by comprising
Cover board offers the first opening；
First encapsulation pattern, is set on the cover board；
Second encapsulation pattern, is set on the cover board, and the second encapsulation pattern is around first opening, first encapsulation
Pattern is around the second encapsulation pattern；And
Bottom plate, including non-display area and display area offer on the non-display area corresponding with first opening
Second opening, the non-display area are equipped with sunk area corresponding with the second encapsulation pattern；It encloses the display area
Around the non-display area；The first encapsulation pattern and the second encapsulation pattern sintering setting, by the cover board and institute
It states bottom plate to be sealed, fits in the sunk area on the second encapsulation pattern, the bottom plate fits in described first
It encapsulates on pattern, and the display area is sealed between the first encapsulation pattern and the second encapsulation pattern；It is described recessed
Region is fallen into be accumulated by the film layer of driving circuit and pixel array.
2. organic light emitting display according to claim 1, which is characterized in that the first encapsulation pattern and described second
Encapsulation pattern passes through silk screen printing process and is printed on the cover board.
3. organic light emitting display according to claim 1, which is characterized in that opened up on the sunk area fluted.
4. organic light emitting display according to claim 3, which is characterized in that the cross-sectional shape of the groove is in triangle
Shape.
5. organic light emitting display according to claim 3, which is characterized in that the cross-sectional shape of the groove is in four sides
Shape.
6. organic light emitting display according to claim 3, which is characterized in that the cross-sectional shape of the groove is rounded
Shape.
7. organic light emitting display according to claim 1, which is characterized in that the display area includes around described non-
The driving circuit and pixel array of display area；The driving circuit includes thin film transistor (TFT), the thin film transistor (TFT) include according to
The secondary buffer insulation layer formed on the bottom plate, polysilicon layer, gate insulation layer, gate electrode layer, interlayer insulating film, source-drain electrode
Layer, protective layer, flatness layer and anode electrode layer, the source-drain electrode layer are arranged in the gate insulation layer and the layer insulation respectively
Layer, and the source-drain electrode layer is electrically connected with the polysilicon layer；The pixel array is set to deviating from for the anode electrode layer
The side of the flatness layer.
8. organic light emitting display according to claim 7, which is characterized in that the interlayer insulating film includes the first interlayer
Insulating layer and the second interlayer insulating film, first interlayer insulating film is adjacent to the gate electrode layer, second interlayer insulating film
The neighbouring source-drain electrode layer.
9. organic light emitting display according to claim 7, which is characterized in that the thin film transistor (TFT) further includes pixel
Layer, the pixel layer are wrapped in the anode electrode layer and abut with the flatness layer.
10. organic light emitting display according to claim 7, which is characterized in that the driving circuit further includes storage electricity
Container, the storage include lower electrode layer and upper electrode layer, the lower electrode layer and the upper electrode layer with it is described
The electrical connection of source-drain electrode layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711297461.XA CN107994133B (en) | 2017-12-08 | 2017-12-08 | Organic light emitting display |
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| CN201711297461.XA CN107994133B (en) | 2017-12-08 | 2017-12-08 | Organic light emitting display |
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| CN107994133A CN107994133A (en) | 2018-05-04 |
| CN107994133B true CN107994133B (en) | 2019-11-12 |
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| CN110707231A (en) * | 2019-09-12 | 2020-01-17 | 武汉华星光电半导体显示技术有限公司 | Organic light emitting diode display panel |
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| KR100643891B1 (en) * | 2005-05-04 | 2006-11-10 | 주식회사 대우일렉트로닉스 | Organic light emitting device panel having encapsulation cap |
| CN105576148A (en) * | 2016-01-04 | 2016-05-11 | 京东方科技集团股份有限公司 | Package method of organic light emitting diode (OLED) display panel, OLED display panel and OLED display device |
| CN106373990A (en) * | 2016-11-29 | 2017-02-01 | 上海天马有机发光显示技术有限公司 | OLED (optical light emitting diode) display panel and manufacturing method thereof |
| CN107331797A (en) * | 2017-07-12 | 2017-11-07 | 信利（惠州）智能显示有限公司 | Display screen and its method for packing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100643891B1 (en) * | 2005-05-04 | 2006-11-10 | 주식회사 대우일렉트로닉스 | Organic light emitting device panel having encapsulation cap |
| CN105576148A (en) * | 2016-01-04 | 2016-05-11 | 京东方科技集团股份有限公司 | Package method of organic light emitting diode (OLED) display panel, OLED display panel and OLED display device |
| CN106373990A (en) * | 2016-11-29 | 2017-02-01 | 上海天马有机发光显示技术有限公司 | OLED (optical light emitting diode) display panel and manufacturing method thereof |
| CN107331797A (en) * | 2017-07-12 | 2017-11-07 | 信利（惠州）智能显示有限公司 | Display screen and its method for packing |
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