CN109166886A - OLED display panel and OLED show equipment - Google Patents
OLED display panel and OLED show equipment Download PDFInfo
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- CN109166886A CN109166886A CN201810948514.8A CN201810948514A CN109166886A CN 109166886 A CN109166886 A CN 109166886A CN 201810948514 A CN201810948514 A CN 201810948514A CN 109166886 A CN109166886 A CN 109166886A
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- power supply
- supply cabling
- display panel
- cabling
- oled display
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
- H10K59/1315—Interconnections, e.g. wiring lines or terminals comprising structures specially adapted for lowering the resistance
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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 provides a kind of OLED display panel, by the way that the first accessory power supply cabling that is parallel with power supply cabling and being located at different layers is arranged in the OLED display panel, and will be electrically connected between the first accessory power supply cabling and power supply cabling by multiple spaced via holes.The first accessory power supply cabling in parallel is equivalent on the power supply cabling, the all-in resistance of the power supply cabling and the first accessory power supply cabling after parallel connection reduces, so that power supply signal in the structure after the power supply cabling is in parallel with the first accessory power supply cabling when being transmitted, the voltage drop of each position reduces, so that the power supply signal difference for being transmitted to each pixel unit is smaller, so that the display progress of each position of the OLED display panel is more uniform.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of OLED display panels and OLED to show equipment.
Background technique
OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) display panel has reaction speed
Fastly, excitation purity and brightness have, contrast is high, visual angle light and the features such as low-power consumption, gradually obtain the extensive concern of people.Tool
Body, OLED display panel includes multiple pixel units, is provided by power supply cabling (VDD cabling) for each pixel unit
Power supply signal (VDD signal).Power supply signal is generally transmitted from one end of the power supply cabling to the other end, due to power supply cabling electricity
The presence of resistance can have certain voltage drop (IR drop) on the power supply cabling, so that each position of OLED display panel
The power supply signal set it is of different sizes so that each position of OLED display panel generates luminance difference.
Summary of the invention
The present invention provides a kind of OLED display panel and OLED shows equipment, the electricity of each position of OLED display panel
Source signal is uniform in size, so that each position of the OLED display panel has uniform display effect.
The OLED display panel includes the driving transistor of multiple array settings, and the power supply of a plurality of parallel interval setting is walked
Line, and a plurality of spaced first accessory power supply cabling parallel with the power supply cabling, first accessory power supply are walked
Line and the power supply cabling are located at different layers, and every the first accessory power supply cabling is corresponding with a power supply cabling,
And every the first accessory power supply cabling with between its corresponding power supply cabling pass through multiple spaced via holes into
Row electrical connection；Each driving transistor is electrically connected with the power supply cabling, and the power supply cabling is the driving
Transistor provides power supply signal.
Wherein, the resistance of the first accessory power supply cabling is less than the resistance of the power supply cabling.
Wherein, the OLED display panel includes source-drain electrode layer, grid layer, pixel electrode layer, the anode layer being stacked
And the cathode layer opposite with the anode layer, the power supply cabling and the source-drain electrode layer are located on the same floor and pass through same processing procedure
It obtains；Any one layer is located at same in the first accessory power supply cabling and the grid layer, the anode layer and the cathode layer
It one layer and is obtained by same processing procedure.
Wherein, the first accessory power supply cabling is located on the same floor with the anode layer and passes through same processing procedure and obtains；Shape
It is less than the resistance value for forming the source-drain electrode layer material at the resistance value of the anode layer material.
Wherein, the position that every power supply cabling is electrically connected with the driving transistor is equipped with the via hole.
Wherein, the OLED display panel includes the pixel unit of multiple array settings, each driving transistor position
In in a pixel unit.
Wherein, every power supply cabling and the first accessory power supply cabling be located at two adjacent column pixel units it
Between；It is equipped with a power supply cabling per between the two adjacent column pixel units, is laminated on every power supply cabling
One accessory power supply cabling corresponding with the power supply cabling.
Wherein, the OLED display panel further includes the second accessory power supply cabling of a plurality of spaced and parallel setting, and described
Two accessory power supply cablings are located on the same floor with the first accessory power supply cabling and arranged in a crossed manner, the first accessory power supply cabling
It is formed with the second accessory power supply cabling latticed.
Wherein, every the second accessory power supply cabling is between two adjacent row pixel units.
The OLED shows that equipment includes the OLED display panel.
The OLED display panel provided by the invention, by being arranged to walk with the power supply in the OLED display panel
Line is parallel and is located at the first accessory power supply cabling of different layers, and will lead between the first accessory power supply cabling and power supply cabling
Multiple spaced via holes are crossed to be electrically connected.First accessory power supply in parallel is equivalent on the power supply cabling to walk
Total resistance of line, the power supply cabling and the first accessory power supply cabling after parallel connection reduces, so that power supply signal is in institute
State power supply cabling it is in parallel with the first accessory power supply cabling after structure on when being transmitted, the power supply cabling and described the
The voltage drop of each position of structure after one accessory power supply cabling is in parallel reduces, so that passing through the power supply cabling and institute
State the first accessory power supply cabling it is in parallel after structural transmission to each position of the OLED display panel power supply signal more
Uniformly, so that the OLED display panel is uniformly shown.
Detailed description of the invention
More clearly to illustrate construction feature and effect of the invention, come with reference to the accompanying drawing with specific embodiment to its into
Row is described in detail.
Fig. 1 is the schematic cross-section of the OLED display panel of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the OLED display panel of one embodiment of the invention；
Fig. 3 is the structural schematic diagram of the OLED display panel of another embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Wherein, the drawings are for illustrative purposes only and are merely schematic diagrams, should not be understood as the limitation to this patent.
The present invention provides a kind of OLED display equipment, and the OLED shows that equipment can be mobile phone, computer, TV, electronics
Various types of display equipment such as reader.The OLED display panel includes that each position has uniform display effect
OLED display panel, so that the OLED display panel has good display effect.
Referring to Fig. 1, the present invention provides a kind of OLED display panel 100.The OLED display panel 100 includes multiple battle arrays
The driving transistor 10 of column setting, the power supply cabling 20 of a plurality of parallel interval setting, and it is parallel with the power supply cabling 20
A plurality of spaced first accessory power supply cabling 30, the first accessory power supply cabling 30 are located at not with the power supply cabling 20
Same layer, every the first accessory power supply cabling 30 is corresponding with a power supply cabling 20, and every first auxiliary
Power supply cabling 30 is electrically connected with between its corresponding power supply cabling 20 by multiple spaced via holes 40.Each
The driving transistor 10 is electrically connected with the power supply cabling 20, and the power supply cabling 20 is the driving transistor 10
Power supply signal is provided.
The OLED display panel includes substrate 50, and the driving transistor 10 is set on the substrate 50.It can manage
Solution, in some embodiments of the invention, is also laminated with buffer layer and/or light shield layer on the substrate 50.Further,
It is also laminated with anode layer 51 and cathode layer 52 on the driving transistor 10, and is set to the anode layer 51 and the cathode layer
Luminescent layer 53 between 52.The driving transistor 10 is electrically connected with the anode layer 51, to pass through the driving transistor 10
Control the size of power supply signal input from the power supply cabling 20 to the anode layer 51 so that the anode layer 51 and
A certain size voltage is generated between the cathode layer 52, so that the hair between the anode layer 51 and the cathode layer 52
Photosphere 53 issues the light of different brightness.
In the present embodiment, the driving transistor 10 includes the active layer 11 being cascading, grid layer 12 and source
Drain electrode layer 13, and spacer insulator between each layer.Due to one that the driving transistor 10 is the OLED display panel 100
Point, i.e., the described OLED display panel 100 includes the active layer 11, grid layer 12 and source-drain electrode layer 13.It is understood that this
In invention, the grid layer 12 can be one layer, or stacking and insulation gap setting two layers.The active layer 11 wraps
Include semiconductor channel area 111 and the first doped region 112 and the second doped region 113 positioned at 111 two sides of semiconductor channel area.
The source-drain electrode layer 13 includes source electrode and drain electrode, and the source electrode is electrically connected with first doped region 112 by via hole, institute
Drain electrode is stated to be electrically connected with second doped region 113 by via hole.The anode layer 51 by via hole and the source electrode into
Row electrical connection.The power supply cabling 20 is located on the same floor with the source-drain electrode layer 13 and is obtained by same processing procedure, i.e., so that institute
The material for stating power supply cabling 20 is identical as the material of the source and drain and layer 14.Also, the power supply cabling 20 and the source electrode or
The drain electrode is electrically connected, and is the driving to realize that the power supply cabling 20 drives being electrically connected for transistor 10 with described
Transistor 10 provides power supply signal.The first accessory power supply cabling 30 can with the grid layer 12, the anode layer 51 or
Cathode layer 52 is located on the same floor and is obtained by same processing procedure, to avoid increasing the processing procedure of the OLED display panel 100.And
And no matter the first accessory power supply cabling 30 is located at which layer, the first accessory power supply cabling 30 and the power supply cabling
The resistance sizes of structure after 20 parallel connections are respectively less than the resistance sizes of the power supply cabling 20, are transmitted to reduce power supply signal
The voltage drop generated when the different driving transistor 10, so that each pixel list of the OLED display panel 100
Member 50 it is luminous uniformly.Also, due to the first accessory power supply cabling 30 it is in parallel with the power supply cabling 20 after structure
Resistance sizes are less than the resistance sizes of the power supply cabling 20, so that via the power supply cabling 20 first auxiliary electricity in parallel
The speed of the parallel-connection structure transmission power supply signal of source cabling 30 faster, is rung faster so that the OLED display panel 100 has
Speed is answered, realizes more preferably display effect.
Preferably, in the present invention, the resistance of the first accessory power supply cabling 30 is less than the resistance of the power supply cabling 20,
The resistance of parallel-connection structure after parallel connection is less than the size of the resistance of the first accessory power supply cabling 30, so that described first
The resistance of structure after accessory power supply cabling 30 is in parallel with the power supply cabling 20 is small as far as possible, to reduce voltage as far as possible
Drop.In the present embodiment, the first accessory power supply cabling 30 is located on the same floor with the anode layer 51 and is obtained by same processing procedure
It arrives.The resistance value for forming the material of the anode layer 51 is less than the resistance value for forming the material of the source-drain electrode layer 13, so that institute
The resistance for stating the first accessory power supply cabling 30 is less than the resistance sizes of the power supply cabling 20.Specifically, the institute in the present embodiment
The material for stating pixel electrode layer is tin indium oxide and silver, and the material of the source-drain electrode layer is titanium or aluminum metal.
Referring to Fig. 2, the OLED display panel 100 includes the pixel unit 50 of multiple arrays setting, often in the present invention
A driving transistor 10 is located in the pixel unit 50.Between having between the pixel unit 50 of adjacent two
Gap.In the present invention, every power supply cabling 20 and the first accessory power supply cabling 30 are located at two adjacent column pixel units
In gap between 50, so that the power supply cabling 20 and the first accessory power supply cabling 30 is avoided to block the pixel unit 50,
The power supply cabling 20 is avoided to occupy the aperture opening ratio of the OLED display panel 100 with the first auxiliary cabling 30.Wherein, institute
The line width for stating the first accessory power supply cabling 30 and the power supply cabling 20 can be wide as far as possible, to reduce the first auxiliary electricity
The resistance of source cabling 30 and the power supply cabling 20.
In the present embodiment, it is equipped with a power supply cabling 20 per between the two adjacent column pixel units 50, i.e., often
It is corresponding with a power supply cabling 20 to arrange the pixel unit 50, so that the driving transistor in the pixel unit 50
10 are electrically connected with power supply cabling 20 corresponding with the pixel unit 50, with by the power supply cabling 20 for the driving transistor
10 provide power supply signal, to drive the column pixel unit 50 to perform image display.It is understood that in of the invention its
, can also be a power supply cabling 20 be arranged between every two column pixel unit 50 in its embodiment, and make the power supply
The pixel unit 50 of 20 two sides of cabling is electrically connected with power supply cabling 20 described in this, i.e., same by the power supply cabling 20
When the two column pixel units 50 of driving perform image display.In the present embodiment, one is laminated on every power supply cabling 20
The item first accessory power supply cabling 30 corresponding with the power supply cabling 20.Also, in the present embodiment, every power supply
Cabling 20 be equipped with the position of the source electrode of the driving transistor 10 or drain electrode electrical connection connect the power supply cabling 20 and
The via hole 40 of the first accessory power supply cabling 30, so that the corresponding power supply signal of each pixel unit 50 passes
Defeated route all has small voltage drop, to further make the power supply signal size phase as far as possible of each pixel unit 50
Together, so that the display of the OLED display panel is uniform.It, can also be with it is understood that in other embodiments of the invention
It does not need the position that each power supply cabling 20 is electrically connected with the driving transistor 10 and is respectively provided with the via hole 40, it is adjacent
Multiple pixel units 50 can be spaced between two via holes 40.
Further, referring to Fig. 3, in the present invention, the OLED display panel 100 further includes a plurality of spaced and parallel setting
The second accessory power supply cabling 60, the second accessory power supply cabling 60 is located on the same floor with the first accessory power supply cabling 30
And it is arranged in a crossed manner, the first accessory power supply cabling 30 forms latticed with the second accessory power supply cabling 60.In other words,
The a plurality of first accessory power supply cabling 30 is together in parallel by a plurality of second accessory power supply cabling 60, and is equivalent to and increases institute
The area of the first power supply cabling 30 is stated, to reduce the resistance of the first accessory power supply cabling 30, further with further
Reduce the voltage drop for the power supply signal being transmitted on each pixel unit 50.Also, due on the power supply cabling 20
The first accessory power supply cabling 30 in parallel and the second accessory power supply cabling 60, the structure after parallel connection is relative to described in Fig. 1
OLED display panel for, the resistance for transmitting the transmission line of the power supply signal further decreases, so that via institute
The parallel-connection structure of the first accessory power supply cabling 30 in parallel and the second accessory power supply cabling 60 on power supply cabling 20 is stated to pass
Faster, so that the OLED display panel has faster corresponding speed, realization is more preferably shown the speed of defeated power supply signal
Effect.
In some embodiments of the invention, every the second accessory power supply cabling 20 is located at two adjacent row pixel units 50
Between.It is understood that in other embodiments of the invention, it can also between the second auxiliary cabling 20 of adjacent two
With the multiple pixel units 50 in interval, i.e., the distance between described second auxiliary cabling 20 of adjacent two is two or more
Pixel unit size.
The OLED display panel 100 provided by the invention, by the OLED display panel 100 be arranged with it is described
Power supply cabling 20 is parallel and is located at the first accessory power supply cabling 30 of different layers, and will the first accessory power supply cabling 30 with it is electric
It is electrically connected between source cabling 20 by multiple spaced via holes.It is equivalent on the power supply cabling 20 described in parallel connection
Total resistance of first accessory power supply cabling 30, the power supply cabling 20 and the first accessory power supply cabling 30 after parallel connection reduces,
So that power supply signal is passed in the structure after the power supply cabling 20 is in parallel with the first accessory power supply cabling 30
When defeated, the voltage drop of each position reduces, so that the power supply signal difference for being transmitted to each pixel unit 50 is smaller, so that
The display of each position of the OLED display panel 100 carries out more uniform.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of OLED display panel, which is characterized in that the driving transistor including the setting of multiple arrays, a plurality of parallel interval are set
The power supply cabling set, and a plurality of spaced first accessory power supply cabling parallel with the power supply cabling, described first
Accessory power supply cabling and the power supply cabling are located at different layers, and every the first accessory power supply cabling is walked with a power supply
Line is corresponding, and every the first accessory power supply cabling is arranged with between its corresponding power supply cabling by multiple intervals
Via hole be electrically connected；Each driving transistor is electrically connected with the power supply cabling, and the power supply cabling is
The driving transistor provides power supply signal.
2. OLED display panel as described in claim 1, which is characterized in that the resistance of the first accessory power supply cabling is less than
The resistance of the power supply cabling.
3. OLED display panel as described in claim 1, which is characterized in that the OLED display panel includes being stacked
Source-drain electrode layer, grid layer, pixel electrode layer, anode layer and the cathode layer opposite with the anode layer, the power supply cabling and institute
It states source-drain electrode layer and is located on the same floor and passes through same processing procedure and obtain；It is the first accessory power supply cabling and the grid layer, described
Any one layer is located on the same floor and passes through same processing procedure and obtains in anode layer and the cathode layer.
4. OLED display panel as claimed in claim 3, which is characterized in that the first accessory power supply cabling and the anode
Layer is located on the same floor and is obtained by same processing procedure；The resistance value for forming the anode layer material, which is less than, forms the source-drain electrode layer material
The resistance value of material.
5. OLED display panel as described in claim 1, which is characterized in that every power supply cabling and the driving crystal
The position of pipe electrical connection is equipped with the via hole.
6. OLED display panel as described in claim 1, which is characterized in that the OLED display panel includes that multiple arrays are set
The pixel unit set, each driving transistor are located in the pixel unit.
7. OLED display panel as claimed in claim 6, which is characterized in that every power supply cabling and first auxiliary
Power supply cabling is between two adjacent column pixel units；An electricity is equipped with per between the two adjacent column pixel units
Source cabling is laminated with the accessory power supply cabling corresponding with the power supply cabling on every power supply cabling.
8. such as the OLED display panel of any one of claim 1-7, which is characterized in that the OLED display panel further includes
Second accessory power supply cabling of a plurality of spaced and parallel setting, the second accessory power supply cabling and the first accessory power supply cabling
It is located on the same floor and arranged in a crossed manner, the first accessory power supply cabling forms latticed with the second accessory power supply cabling.
9. the OLED display panel as claimed in claim 8, which is characterized in that every the second accessory power supply cabling is located at
Between two adjacent row pixel units.
10. a kind of OLED shows equipment, which is characterized in that the OLED display panel including any one of such as claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948514.8A CN109166886A (en) | 2018-08-20 | 2018-08-20 | OLED display panel and OLED show equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810948514.8A CN109166886A (en) | 2018-08-20 | 2018-08-20 | OLED display panel and OLED show equipment |
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| CN109166886A true CN109166886A (en) | 2019-01-08 |
Family
ID=64896180
Family Applications (1)
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| CN201810948514.8A Pending CN109166886A (en) | 2018-08-20 | 2018-08-20 | OLED display panel and OLED show equipment |
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