CN110111739A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110111739A CN110111739A CN201910374731.5A CN201910374731A CN110111739A CN 110111739 A CN110111739 A CN 110111739A CN 201910374731 A CN201910374731 A CN 201910374731A CN 110111739 A CN110111739 A CN 110111739A
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- Prior art keywords
- display area
- pin
- cathode
- display
- display panel
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
This application provides a kind of display panel and display device, display panel includes: substrate, is provided with display area and non-display area；Cathode is arranged around the display area and is located at the non-display area；Multiple driving chips, the multiple driving chip are uniformly arranged on the non-display area and are located at the cathode outer side；Each driving chip is provided with driving signal pin field and the bypass pin region positioned at driving signal pin field two sides；The driving signal pin field and the bypass pin region are provided with multiple negative electrode pins, and the negative electrode pin is electrically connected with the cathode.Negative electrode pin by being separately positioned on each pin field of driving chip by the application, so that the input terminal of cathode line signal is evenly distributed in the surrounding of display area, the input path of cathode line is reduced, and then reduces the resistance of cathode line, improves show uniformity.
Description
Technical field
This application involves field of display technology, in particular to a kind of display panel and display device.
Background technique
Since AMOLED is the driving display of voltage programming current, VDD and between flow through the path of T1 and OLED
On there are electric current, the resistance on the path drastically influences the distribution of the voltage on the path, and then affects the distribution of electric current
Unevenly, it causes the inhomogeneities of brightness to increase, reduces display quality.The especially display of top emitting, due to cathode resistor
It is worth the larger resistance value difference caused in display interior different zones, and then the voltage value for affecting OLED cathode is different, pixel
Interior circuit diagram is as follows, and since different zones Rs is different, the cross-pressure at the both ends OLED is Voled, then Vs=I*Rs+Voled
Can be different, and Vg=Vdata is identical for value of the Data voltage between display interior different pixels, therefore different pixels Vgs different,
I=K (Vdata+Vth '-I*Rs-Voled)/2, thus the current distribution is uneven of display is even, and it is uneven in turn result in brightness display
It is even.For the resistance Rd on VDD line, it can meet driving tube by raising VDD voltage, value and be in saturation region, then not
Influence the current distribution of display.
And each driving chip all includes following content, general bypass pin can give electric signal, including VDD and VSS letter
Number, driving pin can be in contact with IC, for exporting gate drive signal or source drive signal, the input terminal of VSS signal
Mouth only has specific region, compares concentration, increases VSS input path, increases VSS resistance value, and input port is concentrated, and is made
At the concentration of electric current, and then high-temperature area is formed, influences display quality.
Therefore, the prior art is defective, needs to improve.
Summary of the invention
The application provides a kind of display panel and display device, can reduce the resistance of cathode line, improves show uniformity.
This application provides a kind of display panels, comprising:
Substrate is provided with display area and non-display area；
Cathode is arranged around the display area and is located at the non-display area；
Multiple driving chips, the multiple driving chip are uniformly arranged on the non-display area and are located at outside the cathode
Side；Each driving chip is provided with driving signal pin field and positioned at driving signal pin field two sides
Bypass pin region；
The driving signal pin field and the bypass pin region are provided with multiple negative electrode pins, the cathode
Pin is electrically connected with the cathode.
In display panel described herein, each bypass pin region is additionally provided with multiple VDD power pins,
The multiple VDD power pins and the negative electrode pin alternate intervals in the bypass pin region are distributed.
In display panel described herein, the bypass pin region is additionally provided with GOA signal pins or WOA signal
Pin.
In display panel described herein, the driving signal pin field is provided with for exporting the driving core
Piece provide source signal source drive pin and or the gate driving pin for exporting gate drive signal.
In display panel described herein, the negative electrode pin is electrically connected by fan-out line with the cathode.
In display panel described herein, states non-display area and be additionally provided with flexible circuit board, the flexible circuit
Plate is electrically connected by cathode line with the cathode.
In display panel described herein, the multiple driving chip is evenly spaced apart to be set to the display area
The non-display area of side, the flexible circuit board are set to the non-display area of another opposite side of the display area.
In display panel described herein, the quantity of the flexible circuit board is two, described two flexible circuits
Plate is positioned apart from the non-display area.
In display panel described herein, the cathode rectangular frame-shaped, and the display area is surrounded, and institute
It is all the same at a distance from the display area to state each side of cathode.
A kind of display device, including display panel described in any of the above embodiments.
Negative electrode pin by being separately positioned on each pin field of driving chip by the application, so that cathode line is interrogated
Number input terminal be evenly distributed in the surrounding of display area, reduce the input path of cathode line, and then reduce the electricity of cathode line
Resistance improves show uniformity.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of application
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structure chart of one of some embodiments of the application display panel.
Fig. 2 is the pin distribution map of the driving chip in some embodiments of the application.
Fig. 3 is another structure chart of one of some embodiments of the application display panel.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
It is the structure chart of one of some embodiments of the application display panel please refer to Fig. 1 and Fig. 2, Fig. 1.Figure
2 be the pin distribution map of the driving chip in some embodiments of the application.
In some embodiments, display panel, comprising: substrate 10, cathode 20 and multiple driving chips 30.Wherein,
Display area 11 and non-display area 12 are provided on the substrate 10；The substrate 10 is array substrate, which is in
Rectangular-shaped, which is simultaneously arranged around the display area 11.Wherein, the cathode 20 is around the display
Region 11 is arranged and is located at the non-display area 12.Wherein, multiple driving chip 30 is uniformly arranged on the non-display area
Domain 12 is simultaneously located at 20 outside of cathode；Each driving chip 30 is provided with driving signal pin field 31 and is located at described
The bypass pin region 32 of 31 two sides of driving signal pin field.Wherein, the driving signal pin field 31 and the bypass
Pin field 32 is provided with multiple negative electrode pins 301, and the negative electrode pin 301 passes through 20 electricity of cathode line 40 and the cathode
Connection.
Negative electrode pin by being separately positioned on each pin field of driving chip by the application, so that cathode line is interrogated
Number input terminal be evenly distributed in the surrounding of display area, reduce the input path of cathode line, the electricity of cathode line can be reduced
Resistance improves show uniformity.
Specifically, in some embodiments, which is additionally provided with multiple VDD power pins, described more
A VDD power pins and the negative electrode pin alternate intervals in the bypass pin region 32 are distributed.Certainly, the bypass pin area
Domain 32 is additionally provided with GOA signal pins or WOA signal pins.
In some embodiments, driving signal pin field 31 is provided with the source provided for exporting the driving chip 30
The source drive pin of pole signal and or the gate driving pin for exporting gate drive signal.Wherein, when the driving chip
When for source driving chip, which just includes multiple source drive pins.When the driving chip is grid
When the driving chip of pole, which just includes multiple gate driving pins.When the driving chip be source electrode grid
When the integrated drive chips of pole, which just includes multiple source drive pins and gate driving pin.
In some embodiments, which is fan-out line.
Referring to Fig. 3, in some embodiments, the non-display area 12 of the substrate 10 is additionally provided with flexible circuit board 50,
The flexible circuit board 50 is electrically connected by cathode line 40 with the cathode 20.
Wherein, multiple driving chip 30 is evenly spaced apart to be set to the non-display area of 11 side of display area
12, the flexible circuit board 50 is set to the non-display area 12 of another opposite side of the display area 11.Wherein, the flexibility
The quantity of circuit board 50 is two, and described two flexible circuit boards are positioned apart from the non-display area 12.
In some embodiments, 20 rectangular frame-shaped of cathode, and the display area 11 is surrounded, and the cathode 20
Each side is all the same at a distance from the display area 11.
In conclusion negative electrode pin is by being separately positioned on each pin field of driving chip by the application, to make
The input terminal for obtaining cathode line signal is evenly distributed in the surrounding of display area, reduces the input path of cathode line, can reduce
The resistance of cathode line improves show uniformity.
Present invention also provides a kind of display device, which is AMOLED display device, which uses
Display panel in above-mentioned any embodiment.The display device is by being separately positioned on each of driving chip for negative electrode pin
Pin field reduces the defeated of cathode line so that the input terminal of cathode line signal is evenly distributed in the surrounding of display area
Enter path, and then reduce the resistance of cathode line, improves show uniformity.
Although above preferred embodiment is not to limit in conclusion the application is disclosed above with preferred embodiment
The application processed, those skilled in the art are not departing from spirit and scope, can make various changes and profit
Decorations, therefore the protection scope of the application subjects to the scope of the claims.
Claims (10)
1. a kind of display panel characterized by comprising
Substrate is provided with display area and non-display area；
Cathode is arranged around the display area and is located at the non-display area；
Multiple driving chips, the multiple driving chip are uniformly arranged on the non-display area and are located at the cathode outer side；
Each driving chip is provided with driving signal pin field and the side positioned at driving signal pin field two sides
Road pin field；
The driving signal pin field and the bypass pin region are provided with multiple negative electrode pins, the negative electrode pin
It is electrically connected with the cathode by cathode line.
2. display panel according to claim 1, which is characterized in that each bypass pin region is additionally provided with multiple
The negative electrode pin alternate intervals in VDD power pins, the multiple VDD power pins and the bypass pin region are distributed.
3. display panel according to claim 2, which is characterized in that the bypass pin region is additionally provided with GOA signal
Pin or WOA signal pins.
4. display panel according to claim 1, which is characterized in that the driving signal pin field is provided with for defeated
The source drive pin for the source signal that the driving chip provides out and or the gate driving for exporting gate drive signal
Pin.
5. display panel according to claim 1, which is characterized in that the negative electrode pin passes through fan-out line and the cathode
Electrical connection.
6. display panel according to claim 1, which is characterized in that the non-display area is additionally provided with flexible circuit
Plate, the flexible circuit board are electrically connected by cathode line with the cathode.
7. display panel according to claim 6, which is characterized in that the multiple driving chip is evenly spaced apart to be set to
The non-display area of the display area side, the flexible circuit board are set to the non-of another opposite side of the display area
Display area.
8. display panel according to claim 7, which is characterized in that the quantity of the flexible circuit board is two, described
Two flexible circuit boards are positioned apart from the non-display area.
9. display panel according to claim 1, which is characterized in that the cathode rectangular frame-shaped, and by the display
Region surrounds, and each side of the cathode is all the same at a distance from the display area.
10. a kind of display device, which is characterized in that including such as described in any item display panels of claim 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374731.5A CN110111739B (en) | 2019-05-07 | 2019-05-07 | Display panel and display device |
| PCT/CN2019/104265 WO2020224132A1 (en) | 2019-05-07 | 2019-09-04 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374731.5A CN110111739B (en) | 2019-05-07 | 2019-05-07 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110111739A true CN110111739A (en) | 2019-08-09 |
| CN110111739B CN110111739B (en) | 2021-01-01 |
Family
ID=67488534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910374731.5A Active CN110111739B (en) | 2019-05-07 | 2019-05-07 | Display panel and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110111739B (en) |
| WO (1) | WO2020224132A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020224132A1 (en) * | 2019-05-07 | 2020-11-12 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN110111739B (en) * | 2019-05-07 | 2021-01-01 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
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- 2019-09-04 WO PCT/CN2019/104265 patent/WO2020224132A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110111739B (en) | 2021-01-01 |
| WO2020224132A1 (en) | 2020-11-12 |
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