CN109524447A - Organic light emitting display panel and display device - Google Patents
Organic light emitting display panel and display device Download PDFInfo
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- CN109524447A CN109524447A CN201811598181.7A CN201811598181A CN109524447A CN 109524447 A CN109524447 A CN 109524447A CN 201811598181 A CN201811598181 A CN 201811598181A CN 109524447 A CN109524447 A CN 109524447A
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- reference voltage
- signal line
- voltage signal
- organic light
- electrode plate
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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
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
- H10K59/1216—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being capacitors
-
- 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
-
- 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
Abstract
The embodiment of the present invention provides a kind of organic light emitting display panel and display device, is related to field of display technology, can reduce voltage on reference voltage signal line by voltage change on data signal line interference and changed degree, improve display effect.The organic light emitting display panel includes: a plurality of reference voltage signal line extended in a first direction；The a plurality of data signal line extended in a second direction, the data signal line intersect with reference voltage signal line insulation；Compensating electric capacity positioned at the neighboring area, the compensating electric capacity includes first electrode plate and second electrode plate, where perpendicular to the organic light emitting display panel on the direction of plane, the first electrode plate and the second electrode plate are overlapping, the reference voltage signal line is electrically connected to the first electrode plate of compensating electric capacity, and the second electrode plate is electrically connected to fixed current potential.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of organic light emitting display panels and display device.
Background technique
With the development of display technology, organic light emitting display (Organic Light Emitting Display, abbreviation
OLED) for panel since it is with good characteristics such as self-luminous, high brightness, wide viewing angle, fast reactions, application is more and more extensive.
It is provided with pixel-driving circuit in the display area of organic light emitting display panel, for driving pixel light emission, pixel
Signal required for driving circuit includes reference voltage signal and data-signal, respectively by reference voltage signal line and data-signal
Line provides, and a plurality of reference voltage signal line is arranged as multirow, and every reference voltage signal line is that one-row pixels driving circuits mentions
Supply reference voltage signal, a plurality of data signal line are arranged as multiple row, and every data signal wire provides for a column pixel-driving circuit
Data-signal, since data signal line and reference voltage signal line mutually insulated intersect, the data provided due to data signal line
Voltage can change, and therefore, the voltage on reference voltage signal line is easy since the effect of coupled capacitor is by data-signal
The interference of voltage change on line and change, it is abnormal so as to cause display.
Summary of the invention
The embodiment of the present invention provides a kind of organic light emitting display panel and display device, can reduce reference voltage signal line
On voltage by voltage change on data signal line interference and changed degree, improve display effect.
On the one hand, the embodiment of the invention provides a kind of organic light emitting display panels, comprising:
Display area and neighboring area around the display area；
The a plurality of reference voltage signal line extended in a first direction, the reference voltage signal line prolong from the neighboring area
Extend to the display area；
The a plurality of data signal line extended in a second direction, the second direction intersect with the first direction, the number
The neighboring area is extended to from the display area according to signal wire, the plane where perpendicular to the organic light emitting display panel
Direction on, the insulation of the data signal line and the reference voltage signal line intersects；
Compensating electric capacity positioned at the neighboring area, the compensating electric capacity include first electrode plate and second electrode plate,
Perpendicular on the direction of plane, the first electrode plate and the second electrode plate are handed over where the organic light emitting display panel
Folded, the reference voltage signal line is electrically connected to the first electrode plate of compensating electric capacity, and the second electrode plate is electrically connected to fixation
Current potential.
Optionally, above-mentioned organic light emitting display panel further include:
The reference voltage source line extended along the second direction, the reference voltage source line are located at the peripheral region
Domain；
The a plurality of reference voltage signal line is electrically connected to the reference voltage source line；
Every reference voltage signal line is electrically connected to the compensating electric capacity by the reference voltage source line.
Optionally, the organic light emitting display panel includes multiple compensating electric capacities；
The corresponding compensating electric capacity of every reference voltage signal line, each compensating electric capacity and corresponding institute
State reference voltage signal line it is adjacent and be located at the corresponding reference voltage signal line the same side.
Optionally, the opposite sides positioned at display area is each provided with the reference voltage source line, described in every
Reference voltage signal line corresponds to two compensating electric capacities, and described two compensating electric capacities are located at opposite the two of display area
Side, each compensating electric capacity is adjacent with the corresponding reference voltage signal line and is located at the corresponding reference voltage signal
The same side of line.
Optionally, the first electrode plate is electrically connected to the reference voltage source line, the second electrode by via hole
Plate is electrically connected to fixed potential power source line by via hole.
Optionally, the fixed potential power source line extends along the second direction.
Optionally, the display area includes thin film transistor (TFT) and storage capacitance, and the thin film transistor (TFT) includes grid, source
Pole, drain electrode and active layer, the storage capacitance include third electrode plate and the 4th electrode plate；
The grid and the third electrode plate are located at the first metal layer, and the 4th electrode plate is located at second metal layer,
The source electrode and the drain electrode are located at third metal layer；
The reference voltage signal line is located at the second metal layer, the reference voltage source line and the fixed current potential
Power supply line is located at the third metal layer, and the first electrode plate is located at the first metal layer.
Optionally, the second electrode plate is located at the second metal layer.
Optionally, the second electrode plate and the active layer same layer are arranged.
Optionally, the display area includes pixel-driving circuit, the pixel-driving circuit include driving transistor and
Luminescent device, the driving transistor is for generating driving current and flowing through the luminescent device, the reference voltage signal line
Required reference voltage when for providing reset for the driving transistor gate.
Optionally, the fixed potential power source line is luminescent device power supply line.
Optionally, above-mentioned organic light emitting display panel further include:
Scan drive circuit positioned at the neighboring area；
The fixed potential power source line is high level power supply line, low level power line or ground line, the high level power supply
Line is used to provide high level for the scan drive circuit, and the low level power line for the scan drive circuit for providing
Low level.
On the other hand, the embodiment of the present invention also provides a kind of display device, including above-mentioned organic light emitting display panel.
Organic light emitting display panel and display device in the embodiment of the present invention, are provided with and are electrically connected with reference voltage signal line
The compensating electric capacity connect, two electrode plates of compensating electric capacity are electrically connected in reference voltage signal line and fixed current potential, pass through benefit
The voltage holding effect for repaying capacitor, so that the voltage on reference voltage signal line is more stable, to reduce data signal line
Interference of the upper voltage change to voltage on reference voltage signal line, improves display effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of organic light emitting display panel in the embodiment of the present invention；
Fig. 2 is a kind of partial enlargement diagram of a-quadrant in Fig. 1；
Fig. 3 is the structural schematic diagram of another organic light emitting display panel in the embodiment of the present invention；
Fig. 4 is subregional the schematic diagram of the section structure in the middle part of the display area Fig. 1；
Fig. 5 is another partial enlargement diagram of a-quadrant in Fig. 1；
Fig. 6 obtains structural schematic diagram for pixel-driving circuit a kind of in the embodiment of the present invention；
Fig. 7 is the clock signal figure of pixel-driving circuit in Fig. 6；
Fig. 8 is a kind of structural schematic diagram of display device in the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
As depicted in figs. 1 and 2, Fig. 1 is a kind of structural schematic diagram of organic light emitting display panel in the embodiment of the present invention, figure
2 be a kind of partial enlargement diagram of a-quadrant in Fig. 1, and the embodiment of the present invention provides a kind of organic light emitting display panel, comprising:
Display area 1 and neighboring area 2 around display area 1；The a plurality of reference voltage signal line 3 extended along first direction h1, ginseng
It examines voltage signal line 3 and extends to display area 1 from neighboring area 2；The a plurality of data signal line 4 that h2 extends in a second direction, the
Two direction h2 intersect with first direction h1, and data signal line 4 extends to neighboring area 2 from display area 1, perpendicular to organic hair
Where light display panel on the direction of plane, data signal line 4 intersects with the insulation of reference voltage signal line 3；Positioned at neighboring area 2
Compensating electric capacity 5, compensating electric capacity 5 include first electrode plate 51 and second electrode plate 52, perpendicular to organic light emitting display panel
On the direction of place plane, first electrode plate 51 and second electrode plate 52 are overlapping, and reference voltage signal line 3 is electrically connected to compensation electricity
Hold 5 first electrode plate 51, second electrode plate 52 is electrically connected to fixed current potential.
Specifically, pixel-driving circuit is provided in display area 1, pixel-driving circuit is for driving luminescent device to send out
Light, to realize display function, reference voltage signal line 3 is used to provide required reference voltage for pixel-driving circuit, the ginseng
Examining voltage signal is, for example, the voltage for being resetted to the node in pixel-driving circuit, and data signal line 4 is used to be picture
Data voltage required for plain driving circuit provides, so that pixel-driving circuit generates corresponding drive according to corresponding data voltage
Streaming current, the driving current are used to control the light emission luminance of luminescent device, and multiple pixel-driving circuits are in battle array in display area 1
Column arrangement, definition first direction h1 are line direction, and second direction h2 is column direction, and every row pixel-driving circuit is correspondingly arranged on one
Reference voltage signal line 3, each column pixel-driving circuit are correspondingly arranged on a data voltage signal line 4, reference voltage signal
Line 3 is used to provide reference voltage for corresponding one-row pixels driving circuit, and data voltage signal line 4 is used to be corresponding column picture
Plain driving circuit provides data voltage.The second electrode plate 52 of compensating electric capacity 5 is electrically connected to fixed current potential, 51 electricity of first electrode plate
It is connected to reference voltage signal line 3, even if in this way, the coupling formed between data voltage signal line 4 and reference voltage signal line 3
Capacitor, since the voltage holding of compensating electric capacity 5 acts on, can reduce ginseng when the voltage on data voltage signal line 4 changes
The voltage change degree on voltage signal line 3 is examined, so that the reference voltage being transmitted in pixel-driving circuit is more stable.
It should be noted that the structure of meaning shown in Fig. 2 is only for example, the embodiment of the present invention does not limit compensating electric capacity 5
The mode being electrically connected between reference voltage signal line 3, for example, the first electrode plate 51 of compensating electric capacity 5 is not straight in Fig. 2
Connect and be electrically connected with reference voltage signal line 3, still, in other achievable embodiments, compensating electric capacity can directly with ginseng
Examine the electrical connection of voltage signal line.In addition, the embodiment of the present invention for the quantity of compensating electric capacity 5 and position also without limitation, as long as
It can be electrically connected reference voltage signal line, can be configured according to actual needs, a compensating electric capacity is at least set
5, it is to be understood that ground, the voltage on the more more then reference voltage signal lines 3 of the quantity of compensating electric capacity 5 is more stable, and compensating electric capacity 5 is more leaned on
Nearly reference voltage signal line 3, then the voltage on reference voltage signal line 3 is more stable.
Organic light emitting display panel in the embodiment of the present invention is provided with the compensation electricity being electrically connected with reference voltage signal line
Hold, two electrode plates of compensating electric capacity are electrically connected in reference voltage signal line and fixed current potential, pass through the electricity of compensating electric capacity
Holding effect is pressed, so that the voltage on reference voltage signal line is more stable, to reduce voltage change on data signal line
Interference to voltage on reference voltage signal line, improves display effect.
Optionally, organic light emitting display panel further include: the reference voltage source line 6 that h2 extends in a second direction, reference
Voltage power line 6 is located at neighboring area 2；A plurality of reference voltage signal line 3 is electrically connected to reference voltage source line 6；Every reference
Voltage signal line 3 is electrically connected to compensating electric capacity 5 by reference to voltage power line 6.
Specifically, reference voltage source line 6 is electrically connected to every reference voltage signal line and driving chip, for that will drive
The reference voltage that chip generates is supplied to every reference voltage signal line 3, is not by compensating electric capacity in embodiments of the present invention
5 are directly electrically connected to reference voltage signal line 3, but are electrically connected to reference voltage signal line 3 by reference to voltage power line 6,
It is implemented in technique simpler, it should be noted that in other achievable embodiments, compensating electric capacity 5 is simultaneously different
Surely it to be realized by reference to voltage power line 6 and to be electrically connected with reference voltage signal line 3.
Optionally, organic light emitting display panel includes multiple compensating electric capacities 5；Every reference voltage signal line 3 is one corresponding
Compensating electric capacity 5, each compensating electric capacity 5 is adjacent with corresponding reference voltage signal line 3 and is located at corresponding reference voltage signal line 3
The same side.
Specifically, a compensating electric capacity 5 is respectively provided with beside every reference voltage signal line 3, such as at every with reference to electricity
It presses the lower section of signal wire 3 that one compensating electric capacity 5 is set, the voltage on reference voltage signal line can be made more stable.At other
In achievable embodiment, the compensating electric capacity of respective numbers can be set according to actual needs, the embodiment of the present invention is for mending
The position for repaying capacitor is also not construed as limiting, in principle, under the premise of not influencing other elements, compensating electric capacity and reference voltage signal
The distance of line is closer, and the effect of voltage stabilization is better.For example, a compensating electric capacity can be arranged every n row.In second direction h2
On, when the distance between adjacent compensating electric capacity is equal, compensation effect is more uniform.
Optionally, as shown in figure 3, Fig. 3 is the structural representation of another organic light emitting display panel in the embodiment of the present invention
Figure, the opposite sides positioned at display area 1 are each provided with a reference voltage source line 6, and every reference voltage signal line 3 is corresponding
Two compensating electric capacities 5, and two compensating electric capacities 5 are located at the opposite sides of display area 1, each compensating electric capacity 5 with it is corresponding
Reference voltage signal line 3 it is adjacent and be located at corresponding reference voltage signal line 3 the same side.
Specifically, the opposite sides in display area 1 is respectively provided with reference voltage source line 6, passes through two reference voltage electricity
Source line 6 is that same reference voltage signal line 3 provides reference voltage from the left and right sides, can be made on reference voltage signal line 3 not
It is smaller with the voltage differences at position, meanwhile, the opposite sides in display area 1 is respectively set and every reference voltage signal line
3 corresponding compensating electric capacities 5, can further make the voltage on reference voltage signal line 3 at different location more stable.
Optionally, as shown in Fig. 2, first electrode plate 51 is electrically connected to reference voltage source line 6, second electrode by via hole
Plate 52 is electrically connected to fixed potential power source line 7 by via hole.
Optionally, h2 extends fixed potential power source line 7 in a second direction, is transmitted to each benefit for that will fix electric potential signal
Repay capacitor 5.
Optionally, as shown in figure 4, Fig. 4 is subregional the schematic diagram of the section structure, display area in the middle part of the display area Fig. 1
Including thin film transistor (TFT) M and storage capacitance C, thin film transistor (TFT) m includes grid m1, source electrode m2, drain electrode m3 and active layer m4, storage
Capacitor C includes third electrode plate C3 and the 4th electrode plate C4；Grid m1 and third electrode plate C3 is located at the first metal layer M1, and the 4th
Electrode plate C4 is located at second metal layer M2, source electrode m2 and drain electrode m3 and is located at third metal layer M3；Reference voltage signal line 3 is located at the
Two metal layer M2, reference voltage source line 6 and fixed potential power source line 7 are located at third metal layer M3, and first electrode plate 51 is located at
The first metal layer M1, since the resistivity of second metal layer M2 is small, pressure drop is small, therefore can be formed and be used for transmission fixed current potential
Fixed potential power source line 7 and the reference voltage source line 6 for being used for transmission reference voltage, and by second metal layer M2 come real
Now it is connect with the via hole of other layers.
Optionally, as shown in Figure 2 and Figure 4, second electrode plate 52 is located at second metal layer M2, by second metal layer M2 and
The first metal layer M1 is stronger to realize compensating electric capacity 5, the charging and discharging capabilities of compensating electric capacity 5.
Optionally, as shown in Figure 4 and Figure 5, Fig. 5 is another partial enlargement diagram of a-quadrant in Fig. 1, second electrode
Plate 52 and active layer m4 same layer are arranged, and active layer m4 is semiconductor material, and second electrode plate 52 can be by partly leading through overdoping
Body material is formed.
It should be noted that the specific structure of compensating electric capacity 5 shown in Fig. 2 and Fig. 5 is only for example, the present invention is implemented
Example does not limit the specific structure of compensating electric capacity 5, as long as being capable of forming capacitor, and is electrically connected with reference voltage signal line 3, with steady
Determine the voltage on reference voltage signal line 3.
Optionally, as shown in Fig. 4, Fig. 6 and Fig. 7, Fig. 6 obtains structure for pixel-driving circuit a kind of in the embodiment of the present invention and shows
It is intended to, Fig. 7 is the clock signal figure of pixel-driving circuit in Fig. 6, and display area includes pixel-driving circuit, pixel-driving circuit
Including driving transistor Td and luminescent device E, driving transistor Td to refer to for generating driving current and flowing through luminescent device E
Voltage signal line 3 is used to provide reference voltage required when reset for driving transistor Td grid.
Specifically, such as pixel-driving circuit further includes the first to the 6th switching transistor T1 to T6 and storage capacitance C,
The concrete operating principle of the pixel-driving circuit is illustrated below:
High level is provided in the first period t1, LED control signal line EMIT, controls first switch transistor T1 and third
Switching transistor T3 cut-off, luminescent device E do not shine, and the first scan signal line S1 provides low level, the 4th switch crystal of control
Pipe T4 conducting, the reference voltage of reference voltage signal line 3 are transmitted to first node N1, reset to first node N1, refer to
Voltage is low level, and the second scan signal line S2 provides high level, controls the 5th switching transistor T5 and the 6th switching transistor
T6 cut-off, the first scan signal line S1 provide low level, and control second switch transistor T2 is connected, reference voltage signal line 3
Reference voltage is transmitted to second node N2, resets to the anode of luminescent device E；
High level is provided in the second period t2, LED control signal line EMIT, controls first switch transistor T1 and third
Switching transistor T3 cut-off, luminescent device E do not shine, and the first scan signal line S1 provides high level, the 4th switch crystal of control
Pipe T4 cut-off, the second scan signal line S2 provide low level, and control the 5th switching transistor T5 and the 6th switching transistor T6 is led
Logical, the data-signal of data voltage signal line 4 passes through the 6th switching transistor T6, driving transistor Td and the 5th switching transistor
T5 is transmitted to first node N1, charges for first node N1, and when the current potential of first node N1 becomes Vdata-Vth, driving is brilliant
Body pipe Td cut-off, Vdata are the voltage data signal value that data voltage signal line 4 provides, and Vth is the threshold value for driving transistor Td
Voltage, the first scan signal line S1 provide high level, control second switch transistor T2 cut-off；
Low level is provided in third period t3, LED control signal line EMIT, controls first switch transistor T1 and third
Switching transistor T3 conducting, the first scan signal line S1 provide high level, control the 4th switching transistor T4 cut-off, the second scanning
Signal wire S2 provides high level, controls the 5th switching transistor T5 and the 6th switching transistor T6 cut-off, the first scan signal line
S1 provides high level, and control second switch transistor T2 cut-off, under the action of storage capacitance C, the current potential of first node N1 is protected
Vdata+Vth is held, under the control of Electric potentials of first node N1, driving transistor Td conducting drives the driving current of transistor Td
Ids meets following formula:
Ids=K (Vgs-Vth)2=K (Vdata+Vth-VDD-Vth)2=K (Vdata-VDD)2, wherein K is constant,
Vgs is the gate source voltage for driving transistor Td, and VDD is the driving voltage that drive voltage signal line PVDD is provided, driving current Ids
Luminescent device E is flowed through, driving luminescent device E shines.
Since the grid of driving transistor Td is electrically connected to first node N1, reference voltage signal line 3 is used for drive
The grid of dynamic transistor Td provides required reference voltage when reset, since the grid potential of driving transistor Td is for driving
Electric current is affected, and therefore, it is necessary to guarantee the voltage stabilization on reference voltage signal line 3.It should be noted that in Fig. 6 and Fig. 7
The pixel-driving circuit and clock signal illustrated are only for example, specific structure of the embodiment of the present invention for pixel-driving circuit
Without limitation.
Optionally, fixed potential power source line 7 is luminescent device power supply line.
Specifically, for example, pixel-driving circuit needs drive voltage signal line PVDD to provide driving voltage, in neighboring area
2, need luminescent device power supply line to provide driving voltage for drive voltage signal line PVDD, it therefore, can be by luminescent device power supply
Line drives to provide required fixed current potential for compensating electric capacity 5 meanwhile, it is capable to further improve as fixed potential power source line 7
Pressure drop on dynamic voltage signal line PVDD optionally, organic light emitting display panel further include: the turntable driving positioned at neighboring area 2
Circuit (not shown)；Fixed potential power source line 7 is high level power supply line, low level power line or ground line, high level electricity
Source line is used to provide high level for scan drive circuit, and low level power line is used to provide low level for scan drive circuit, connect
Ground wire is used to provide earthing potential for the electrostatic discharge protection circuit in neighboring area 2, in order to make the electrostatic of neighboring area by connecing
Ground wire is released.By high level power supply line, low level power line or ground line as fixed potential power source line 7, without individually setting
Additional cabling is set, can reduce cabling for the space hold of neighboring area 2.
As shown in figure 8, Fig. 8 is a kind of structural schematic diagram of display device in the embodiment of the present invention, the embodiment of the present invention is mentioned
For a kind of display device, including above-mentioned organic light emitting display panel 100.
Wherein, the specific structure of organic light emitting display panel 100 and principle are same as the previously described embodiments, no longer superfluous herein
It states.Display device can be appoints such as touch display screen, mobile phone, tablet computer, laptop, electric paper book or television set
What electronic equipment having a display function.
Display device in the embodiment of the present invention is provided with the compensating electric capacity being electrically connected with reference voltage signal line, compensation
Two electrode plates of capacitor are electrically connected in reference voltage signal line and fixed current potential, keep making by the voltage of compensating electric capacity
With so that the voltage on reference voltage signal line is more stable, so that it is electric to reference to reduce voltage change on data signal line
The interference for pressing voltage on signal wire, improves display effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (13)
1. a kind of organic light emitting display panel characterized by comprising
Display area and neighboring area around the display area；
The a plurality of reference voltage signal line extended in a first direction, the reference voltage signal line are extended to from the neighboring area
The display area；
The a plurality of data signal line extended in a second direction, the second direction intersect with the first direction, the data letter
Number line extends to the neighboring area from the display area, the side of plane where perpendicular to the organic light emitting display panel
Upwards, the data signal line intersects with reference voltage signal line insulation；
Compensating electric capacity positioned at the neighboring area, the compensating electric capacity includes first electrode plate and second electrode plate, vertical
Where the organic light emitting display panel on the direction of plane, the first electrode plate and the second electrode plate are overlapping, institute
The first electrode plate that reference voltage signal line is electrically connected to compensating electric capacity is stated, the second electrode plate is electrically connected to fixed current potential.
2. organic light emitting display panel according to claim 1, which is characterized in that further include:
The reference voltage source line extended along the second direction, the reference voltage source line are located at the neighboring area；
The a plurality of reference voltage signal line is electrically connected to the reference voltage source line；
Every reference voltage signal line is electrically connected to the compensating electric capacity by the reference voltage source line.
3. organic light emitting display panel according to claim 2, which is characterized in that
The organic light emitting display panel includes multiple compensating electric capacities；
The corresponding compensating electric capacity of every reference voltage signal line, each compensating electric capacity and the corresponding ginseng
Examine voltage signal line it is adjacent and be located at the corresponding reference voltage signal line the same side.
4. organic light emitting display panel according to claim 2, which is characterized in that
Opposite sides positioned at display area is each provided with the reference voltage source line, every reference voltage signal
Line corresponds to two compensating electric capacities, and described two compensating electric capacities are located at the opposite sides of display area, each described
Compensating electric capacity is adjacent with the corresponding reference voltage signal line and is located at the same side of the corresponding reference voltage signal line.
5. organic light emitting display panel according to claim 2, which is characterized in that
The first electrode plate is electrically connected to the reference voltage source line by via hole, and the second electrode plate passes through via hole electricity
It is connected to fixed potential power source line.
6. organic light emitting display panel according to claim 5, which is characterized in that the fixed potential power source line is described in
Second direction extends.
7. organic light emitting display panel according to claim 5, which is characterized in that
The display area includes thin film transistor (TFT) and storage capacitance, and the thin film transistor (TFT) includes grid, source electrode, drains and have
Active layer, the storage capacitance include third electrode plate and the 4th electrode plate；
The grid and the third electrode plate are located at the first metal layer, and the 4th electrode plate is located at second metal layer, described
Source electrode and the drain electrode are located at third metal layer；
The reference voltage signal line is located at the second metal layer, the reference voltage source line and the fixed potential power source
Line is located at the third metal layer, and the first electrode plate is located at the first metal layer.
8. organic light emitting display panel according to claim 7, which is characterized in that
The second electrode plate is located at the second metal layer.
9. organic light emitting display panel according to claim 7, which is characterized in that
The second electrode plate and the active layer same layer are arranged.
10. organic light emitting display panel according to claim 5, which is characterized in that
The display area includes pixel-driving circuit, and the pixel-driving circuit includes driving transistor and luminescent device, institute
Driving transistor is stated for generating driving current and flowing through the luminescent device, the reference voltage signal line is used to be the drive
Dynamic transistor gate provides reference voltage required when reset.
11. organic light emitting display panel according to claim 10, which is characterized in that
The fixed potential power source line is luminescent device power supply line.
12. organic light emitting display panel according to claim 5, which is characterized in that further include:
Scan drive circuit positioned at the neighboring area；
The fixed potential power source line is high level power supply line, low level power line or ground line, and the high level power supply line is used
In providing high level for the scan drive circuit, the low level power line is used to provide low electricity for the scan drive circuit
It is flat.
13. a kind of display device, which is characterized in that aobvious including the organic light emission as described in any one of claim 1 to 12
Show panel.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020191858A1 (en) * | 2019-03-27 | 2020-10-01 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| WO2020192208A1 (en) * | 2019-03-27 | 2020-10-01 | Boe Technology Group Co., Ltd. | Array substrate, display panel and display apparatus |
| CN111785226A (en) * | 2020-07-08 | 2020-10-16 | Tcl华星光电技术有限公司 | Signal transmission line structure and display panel |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5751279A (en) * | 1992-07-16 | 1998-05-12 | Nec Corporation | Active matrix type liquid crystal display and method driving the same |
| JP2006113110A (en) * | 2004-10-12 | 2006-04-27 | Seiko Epson Corp | Electrooptical device and electronic equipment |
| CN1901008A (en) * | 2005-07-21 | 2007-01-24 | 精工爱普生株式会社 | Electronic circuit, electronic device, method of driving electronic device, electro-optical device, and electronic apparatus |
| CN102122525A (en) * | 2011-04-14 | 2011-07-13 | 中国人民解放军国防科学技术大学 | Readout amplifying circuit for resistive random access memory (RRAM) cell |
| CN103680393A (en) * | 2012-08-30 | 2014-03-26 | 乐金显示有限公司 | Organic light emitting display and driving method thereof |
| CN106128360A (en) * | 2016-09-08 | 2016-11-16 | 京东方科技集团股份有限公司 | Image element circuit, display floater, display device and driving method |
| CN106952616A (en) * | 2015-12-31 | 2017-07-14 | 乐金显示有限公司 | Organic electroluminescence display panel and the organic light-emitting display device including the panel |
| CN108010951A (en) * | 2017-11-30 | 2018-05-08 | 武汉天马微电子有限公司 | A kind of organic electroluminescence display panel and display device |
| CN108806582A (en) * | 2018-07-02 | 2018-11-13 | 上海中航光电子有限公司 | Array substrate, electronics master mode display panel and its driving method and display device |
-
2018
- 2018-12-26 CN CN201811598181.7A patent/CN109524447B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5751279A (en) * | 1992-07-16 | 1998-05-12 | Nec Corporation | Active matrix type liquid crystal display and method driving the same |
| JP2006113110A (en) * | 2004-10-12 | 2006-04-27 | Seiko Epson Corp | Electrooptical device and electronic equipment |
| CN1901008A (en) * | 2005-07-21 | 2007-01-24 | 精工爱普生株式会社 | Electronic circuit, electronic device, method of driving electronic device, electro-optical device, and electronic apparatus |
| CN102122525A (en) * | 2011-04-14 | 2011-07-13 | 中国人民解放军国防科学技术大学 | Readout amplifying circuit for resistive random access memory (RRAM) cell |
| CN103680393A (en) * | 2012-08-30 | 2014-03-26 | 乐金显示有限公司 | Organic light emitting display and driving method thereof |
| CN106952616A (en) * | 2015-12-31 | 2017-07-14 | 乐金显示有限公司 | Organic electroluminescence display panel and the organic light-emitting display device including the panel |
| CN106128360A (en) * | 2016-09-08 | 2016-11-16 | 京东方科技集团股份有限公司 | Image element circuit, display floater, display device and driving method |
| CN108010951A (en) * | 2017-11-30 | 2018-05-08 | 武汉天马微电子有限公司 | A kind of organic electroluminescence display panel and display device |
| CN108806582A (en) * | 2018-07-02 | 2018-11-13 | 上海中航光电子有限公司 | Array substrate, electronics master mode display panel and its driving method and display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020191858A1 (en) * | 2019-03-27 | 2020-10-01 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| WO2020192208A1 (en) * | 2019-03-27 | 2020-10-01 | Boe Technology Group Co., Ltd. | Array substrate, display panel and display apparatus |
| US11250786B2 (en) | 2019-03-27 | 2022-02-15 | Beijing Boe Technology Development Co., Ltd. | Array substrate, display panel and display apparatus |
| CN111785226A (en) * | 2020-07-08 | 2020-10-16 | Tcl华星光电技术有限公司 | Signal transmission line structure and display panel |
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|---|---|
| CN109524447B (en) | 2021-04-09 |
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