CN203480804U - Pixel circuit, display panel, and display device - Google Patents
Pixel circuit, display panel, and display device Download PDFInfo
- Publication number
- CN203480804U CN203480804U CN201320390445.6U CN201320390445U CN203480804U CN 203480804 U CN203480804 U CN 203480804U CN 201320390445 U CN201320390445 U CN 201320390445U CN 203480804 U CN203480804 U CN 203480804U
- Authority
- CN
- China
- Prior art keywords
- voltage source
- image element
- luminescent device
- electronic circuit
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The utility model discloses a pixel circuit, a display panel, and a display device, which are used for improving the uniformity of display brightness of a display area of a display panel. The pix circuit comprises a charging sub-circuit, a driving sub-circuit, and a compensating sub-circuit. The first end of the driving sub-circuit is connected with a first reference voltage source through a power supply lead, and the second end of the driving sub-circuit is connected with the first end of a luminescent device. The second end of the luminescent device is connected with the first end of the compensating sub-circuit, and the second end of the compensating sub-circuit is connected with a second reference voltage source. The third end of the driving sub-circuit is connected with the charging sub-circuit. The charging sub-circuit is used for charging the driving sub-circuit before the driving sub-circuit drives the luminescent device to emit light. The compensating sub-circuit is used for compensating the voltage drop, on the power supply lead, of a voltage which is supplied to the driving sub-circuit by the first reference voltage source.
Description
Technical field
The utility model relates to organic light emitting display technical field, relates in particular to a kind of image element circuit, display panel and display device.
Background technology
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) display is low in energy consumption because having, brightness is high, cost is low, visual angle is wide, and the advantage such as fast response time, receive much concern, in organic light emission technical field, be widely used.
The type of drive of OLED Display Driver luminescent device luminescence display is direct drive, before driving luminescent device luminescence display, is capacitor charging, and data-signal is write to electric capacity; When driving luminescent device luminescence display, capacitor discharge, capacitor discharge voltage determine the to flow through drive current of driving transistors, the drive current of driving transistors drives luminescent device luminous.
Usually, without the image element circuit of any compensation electronic circuit, drive the luminous drive current i of luminescent device
dwith (V
dd-V
ss-V
data-V
th)
2be directly proportional.Wherein, V
ddfor high level reference voltage, V
ssfor low level reference voltage, V
datafor the voltage data signal that data line provides, V
ththreshold voltage for driving transistors.
There is following problem in existing OLED display picture element structure.
First, on backboard, for driving a plurality of driving transistorss of each luminescent device luminescence display owing to there being structural unevenness in manufacturing process, and the unevenness of electric property and stability aspect, causes the threshold voltage V of each driving transistors
thpreset value V compares
th0there is drift.Secondly, driving transistors can cause stability decreases, its threshold voltage V in the situation that of long-time direct drive conducting
thvalue also can change.
In addition, along with the development that OLED size maximizes, correspondingly the load on signal wire becomes large, and the quantity of image element circuit increases, and same power supply (provides high level reference voltage V
ddpower supply) be the power supply of different image element circuit, because of voltage V
ddwhat with the increase of cabling, decline is obvious, makes the actual voltage V that offers each image element circuit
ddvariant.When apply identical data-signal V for each image element circuit
datatime, because of V
ddvalue different, backboard viewing area is flow through between the electric current of each OLED unequal, causes the current unevenness on backboard even, thereby causes brightness of image inhomogeneous.
Utility model content
A kind of image element circuit, display panel and display device that the utility model embodiment provides, in order to improve the homogeneity of display panel viewing area display brightness.
A kind of image element circuit that the utility model embodiment provides comprises: charging electronic circuit, drive sub-circuits and compensation electronic circuit;
The first end of described drive sub-circuits is connected with the first reference voltage source by power supply lead wire, the second end is connected with the first end of luminescent device, the second end of luminescent device is connected with the first end of compensation electronic circuit, and the second end of compensation electronic circuit is connected with the second reference voltage source; The 3rd end of drive sub-circuits is connected with charging electronic circuit;
Described charging electronic circuit is drive sub-circuits charging for drive described luminescent device in described drive sub-circuits before luminous, and described compensation electronic circuit is used for compensating the voltage drop on described power supply lead wire of voltage that described the first reference voltage source offers described drive sub-circuits when described drive sub-circuits drives described luminescent device luminous.
Preferably, described compensation electronic circuit is direct voltage source, the positive terminal of this direct voltage source is connected with described the second reference voltage source, and negative pole end is connected with the second end of described luminescent device, the voltage that the voltage that this direct voltage source provides provides lower than described the second reference voltage source.
Preferably, described direct voltage source is adjustable direct voltage source.
Preferably, described drive sub-circuits comprises driving transistors and electric capacity; Described charging electronic circuit comprises switching transistor, data signal source and gate signal source;
Wherein, the source electrode of described driving transistors is connected with the first reference voltage source by described power supply lead wire, and drain electrode is connected with the first end of luminescent device, and grid is connected with the first end of described electric capacity and the drain electrode of described switching transistor; The second end of described electric capacity is connected with described the first reference voltage source; The grid of described switching transistor is connected with described gate signal source, and source electrode is connected with data signal source.
Preferably, described driving transistors is N-shaped driving transistors or p-type driving transistors;
When described driving transistors is N-shaped driving transistors, described the first reference voltage source is low level voltage source, described the second reference voltage source is high level voltage source, and the negative electrode of described luminescent device is connected with described driving transistors, and anode is connected with the negative pole end of described direct voltage source;
When described driving transistors is p-type driving transistors, described the first reference voltage source is high level voltage source, described the second reference voltage source is low level voltage source, and the anode of described luminescent device is connected with described driving transistors, and negative electrode is connected with the negative pole end of described direct voltage source.
The utility model embodiment provides a kind of display panel, comprises and is a plurality of pixel cells that matrix is arranged, and each pixel cell comprises an image element circuit and the luminescent device being connected with this image element circuit, and this image element circuit is used for driving described luminescent device luminous;
Wherein, with described a plurality of pixel cells one to one image element circuit be one of at least the above-mentioned image element circuit with compensation electronic circuit.
Preferably, with the pixel cell that is positioned at same a line one to one image element circuit be the above-mentioned image element circuit with compensation electronic circuit.
Preferably, with the pixel cell that is arranged in same a line one to one the described compensation electronic circuit of image element circuit be same compensation electronic circuit.
Preferably, described compensation electronic circuit is connected with luminescent device by lead-in wire, and the wherein arbitrary of the negative electrode of the grid in described lead-in wire and display panel, grid line, data line, source-drain electrode, luminescent device or anode arranges with layer.
The utility model embodiment provides a kind of display device, comprises described display panel.
The image element circuit that the utility model embodiment provides, by compensation electronic circuit being set between luminescent device and the second reference voltage source, this compensation electronic circuit, for compensating voltage that the first reference voltage source the provides damping capacity Δ V on power supply lead wire, makes to drive the luminous drive current of luminescent device and damping capacity Δ V to have nothing to do.
Accompanying drawing explanation
One of image element circuit structure schematic diagram that Fig. 1 provides for the utility model embodiment;
Two of the image element circuit structure schematic diagram that Fig. 2 provides for the utility model embodiment;
Three of the image element circuit structure schematic diagram that Fig. 3 provides for the utility model embodiment;
The display panel structure schematic diagram that Fig. 4 provides for the utility model embodiment.
Embodiment
A kind of image element circuit, display panel and display device that the utility model embodiment provides, in order to improve the homogeneity of display panel viewing area display brightness.
Active matrix organic light-emitting shows in (AMOLED) panel, comprises a plurality of pixel cells that are matrix distribution, and each pixel cell comprises luminescent device (as OLED) and drives the image element circuit of this luminescent device luminescence display.
Image element circuit comprises provides the first reference voltage source of operating voltage and the second reference voltage source.Usually, a plurality of image element circuits on display panel or all shared first reference voltage source of image element circuit and second reference voltage source.One end of each image element circuit is connected with the first reference voltage source, and the other end is connected with one end of corresponding luminescent device, and the other end of luminescent device is connected with the second reference voltage source; The first reference voltage source is connected with a plurality of image element circuits by many power supply lead wires that distribute in the same direction on display panel; Because the type of drive of image element circuit is current drives mode; the voltage-drop loading that the first reference voltage source provides is during to image element circuit; voltage has certain decay having on the power supply lead wire of certain resistance value; make the actual magnitude of voltage that offers image element circuit of the first reference voltage source be less than predeterminated voltage value; the damping capacity of the voltage that the first reference voltage source provides on power supply lead wire is defined as Δ V; drive the luminous drive current of luminescent device relevant with damping capacity Δ V, the existence of damping capacity cause image element circuit drive luminescent device luminous extremely or luminosity lower.
The image element circuit that the utility model embodiment provides, by compensation electronic circuit being set between luminescent device and the second reference voltage source, this compensation electronic circuit, for compensating voltage that the first reference voltage source the provides damping capacity Δ V on power supply lead wire, makes to drive the luminous drive current of luminescent device and damping capacity Δ V to have nothing to do.
Below with reference to accompanying drawing, illustrate the technical scheme that the utility model embodiment provides.
Referring to Fig. 1, the image element circuit that the utility model embodiment provides comprises:
Charging electronic circuit 1, drive sub-circuits 2 and compensation electronic circuit 3;
The first end of drive sub-circuits 2 (A end) and the first reference voltage source (V
ref1) be connected, the second end (B end) is connected with the first end of luminescent device D1, and the second end of luminescent device D1 is connected with the first end of compensation electronic circuit 3, the second end and the second reference voltage source (V of compensation electronic circuit 3
ref2) be connected; The 3rd end of drive sub-circuits 2 (C end) is connected with charging electronic circuit 1.
The second end that compensation electronic circuit 3 is luminescent device D1 provides reference voltage V
ref3, V wherein
ref3=V
ref2-Δ V.Compensate the damping capacity Δ V that electronic circuit 3 has compensated the voltage on power supply lead wire, the magnitude of voltage of compensation electronic circuit 3 output is the magnitude of voltage after voltage compensation that the second end for luminescent device provides,
Preferably, luminescent device D1 can be Organic Light Emitting Diode OLED or other luminescent devices.
It should be noted that, image element circuit at least comprises a driving transistors, and this driving transistors is used for driving luminescent device luminous, and driving transistors can be N-shaped driving transistors or p-type driving transistors.
When driving transistors is N-shaped driving transistors, the first reference voltage source (V
ref1) low level voltage V is provided
ss, the second reference voltage source provides high level voltage V
dd, now need to compensate the first reference voltage source V
ref1the voltage V providing
ssdamping capacity Δ V on power supply lead wire; Wherein, the negative electrode of luminescent device D1 (being the first end of luminescent device) is connected with drive sub-circuits, anode (being the second end of luminescent device) and the second reference voltage source (V
ref2) be connected.
When driving transistors is p-type driving transistors, the first reference voltage source V
ref1high level voltage V is provided
dd, the second reference voltage source provides low level voltage V
ss, now need to compensate V
dddamping capacity Δ V on power supply lead wire.Wherein, the anode of luminescent device D1 (being the first end of luminescent device) is connected with drive sub-circuits 2, negative electrode (being the second end of luminescent device) and the second reference voltage source (V
ref2) be connected.
Take p-type driving transistors as example, the utility model the first reference voltage source V
ref1high level voltage V is provided
dd, the second reference voltage source V
ref2low level voltage V is provided
ss, V
ddpad value on the power supply lead wire that connects drive sub-circuits is Δ V; The first reference voltage source V
ref1actual loaded is V at the voltage of luminescent device D1 anode
dd-Δ V.
The second end that compensation electronic circuit is luminescent device provides voltage V
ref3=V
ss-Δ V, makes to flow through the drive current and ((V of luminescent device D1
dd-Δ V)-(V
ss-Δ V)-V
data-V
th)
2be directly proportional, with (V
dd--V
ss-V
data-V
th)
2be directly proportional, wherein V
datafor the voltage data signal that charging electronic circuit provides, V
ththreshold voltage for the driving transistors in drive sub-circuits.Compensate electronic circuit and compensated V
ddpad value Δ V on power supply lead wire, makes to flow through electric current and the V of luminescent device
ddpad value Δ V on power supply lead wire is irrelevant, and in image element circuit, the brightness of luminescent device is not subject to V
ddthe impact of pad value Δ V on power supply lead wire.
In the specific implementation, the reference voltage V of compensation electronic circuit output
ref3=V
ss-Δ V is preset value, V
ssthe size of-Δ V can by empirical value, determine in advance and improvement of visual effect is determined.Particularly, when the brightness of a certain pixel cell corresponding region is darker compared with other pixel cell corresponding region brightness, for the image element circuit in this pixel cell arranges compensation electronic circuit described in the utility model, and this compensation electronic circuit is set based on experience value and exports a setting voltage value, range estimation is provided with the brightness of the pixel cell corresponding region of compensation electronic circuit, and adjust the magnitude of voltage of described compensation electronic circuit output, until the pixel cell corresponding region brightness of this compensation electronic circuit and the brightness of other pixel cell corresponding regions are set when consistent, the magnitude of voltage of determining the output of compensation electronic circuit is described V
ss-Δ V.Certainly, described improvement of visual effect is determined just one of normal mode of using, can also adopt instrument to detect luminosity and determine, is not specifically limited here.
Take N-shaped driving transistors as example, the utility model the first reference voltage source V
ref1low level voltage V is provided
ss, the second reference voltage source V
ref2high level voltage V is provided
dd, V
sspad value on the power supply lead wire that connects drive sub-circuits is Δ V; The first reference voltage source V
ref1actual loaded is V at the voltage of luminescent device D1 negative electrode
ss-Δ V.
The second end that compensation electronic circuit is luminescent device provides voltage V
dd-Δ V, makes to flow through the drive current and ((V of luminescent device
ss-Δ V)-(V
dd-Δ V)-V
data-V
th)
2be directly proportional, with (V
ss-V
dd-V
data-V
th)
2be directly proportional, wherein V
datafor the voltage data signal that charging electronic circuit provides, V
ththreshold voltage for the driving transistors in drive sub-circuits.Compensate electronic circuit and compensated V
sspad value Δ V on power supply lead wire, makes to flow through electric current and the V of luminescent device
sspad value Δ V on power supply lead wire is irrelevant, and in image element circuit, the brightness of luminescent device is not subject to V
ssthe impact of pad value Δ V on power supply lead wire.
In the specific implementation, the V of compensation electronic circuit output
dd-Δ V is preset value, V
ddknown, the size of Δ V can be in advance be determined and improvement of visual effect is determined by empirical value, take p-type driving transistors as example with above-mentioned, explanation identical, repeat no more herein.
Preferably, the compensation electronic circuit that the utility model provides can be, but not limited to as direct voltage source, and the second end that is luminescent device D1 by this direct voltage source provides reference voltage V
ref3.
The positive terminal of described direct voltage source is connected with described the second reference voltage source, and negative pole end is connected with the second end of described luminescent device, the voltage V that this direct voltage source provides
ref3the voltage V providing lower than described the second reference voltage source
ref2.
Preferably, described direct voltage source is variable voltage source.In the specific implementation, by improvement of visual effect and empirical value, regulate the voltage V of compensation electronic circuit output
ref2-Δ V value, makes the compare brightness of other luminescent devices of the brightness of the light that described luminescent device D1 sends more even.When direct voltage source is variable voltage source, the reference voltage level V of output
ref3more flexible, more flexible to the compensation of luminescent device the second terminal voltage Δ V.
Referring to Fig. 2, the drive sub-circuits 2 that the utility model provides comprises:
Driving transistors T0 and capacitor C st;
Wherein, the source electrode of driving transistors T0 and the first reference voltage source V
ref1output terminal be connected, drain electrode is connected with the first end of luminescent device D1, grid is connected with the first end (D end) of capacitor C st and the electronic circuit 1 that charges; The second end of capacitor C st (E end) and the first reference voltage source V
ref1output terminal be connected.
Charging electronic circuit 1 comprises:
Switching transistor T1, gate signal source V
gatewith data signal source V
data.
The grid of switching transistor T1 and gate signal source V
gatebe connected, source electrode and data signal source V
databe connected, the first end (D end) of drain electrode and capacitor C st and being connected with the grid of driving transistors T0.
Preferably, the driving transistors T0 in described image element circuit is p-type driving transistors or N-shaped driving transistors; Image element circuit shown in Fig. 2, driving transistors T0 is p-type driving transistors, the image element circuit shown in Fig. 3, driving transistors T0 is N-shaped driving transistors.
Described switching transistor T1 is N-shaped or p-type driving transistors.
It should be noted that, the image element circuit that the utility model embodiment provides is not limited to the above-mentioned image element circuit structure of mentioning, for example, in image element circuit, be not limited to comprise a driving transistors, also can comprise two or more driving transistorss, each driving transistors forms a drive sub-circuits, and each drive sub-circuits is connected with the luminescent device of one or more mutual series connection, and each drive sub-circuits takes turns to operate.Any image element circuit that comprises the compensation electronic circuit that the utility model embodiment provides, within being all included in scope of the present utility model.
Referring to Fig. 4, the utility model embodiment also provides a kind of display panel, comprise that grid line Gate and data line Data by cross arrangement enclose the pixel cell forming, in each pixel cell, be provided with an image element circuit (Driving circuit), with the luminescent device being connected with this image element circuit (as the light emitting diode OLED in Fig. 4), described image element circuit is for driving the luminescent device luminescence display being attached thereto.Correspondingly, described image element circuit is also matrix distribution, and described luminescent device is also matrix distribution.That is to say, each image element circuit is corresponding connected one by one with luminescent device.
4 grid lines (Gate (n), Gate (n+1), Gate (n+2) and Gate (n+3)) shown in Fig. 4 and four data lines (Data (m), Data (m+1), Data (m+2) and Data (m+3)).
Wherein, the image element circuit that possesses compensation electronic circuit of the present utility model can be arranged in the pixel cell of any voltage that need to afford redress, and does not need to provide in the pixel cell that supplements voltage other image element circuits can be set.Therefore with each pixel cell image element circuit that image element circuit one of at least provides for the utility model embodiment one to one, the image element circuit that is provided with compensation electronic circuit that the utility model embodiment provides.Some image element circuit can be for not arranging the image element circuit of described compensation electronic circuit.
Usually, the first reference voltage source being connected with image element circuit, the second reference voltage source and for the compensation electronic circuit of bucking voltage, be arranged on outer peripheral areas or the flexible PCB of display panel, be positioned at the non-display area of display panel, and by power supply lead wire, draw and receive a plurality of image element circuits respectively, in order to simplify circuit structure, as shown in Figure 4, all image element circuits (Driving circuit) or partial pixel circuit share the first reference voltage source and the second reference voltage source.
Usually, on display panel, comprise many power supply lead wires that distribute along column direction one to one with each row image element circuit, the image element circuit being positioned in same a line is corresponding connected one by one from different power supply lead wires respectively, the image element circuit that is positioned at same row shares a power supply lead wire, and each power supply lead wire is connected to same the first reference voltage source.Each power supply lead wire is identical in the image element circuit place voltage drop that is positioned at same row, and it is identical that this voltage drop causes being positioned at the dimmed degree of the luminescent device brightness of same a line, therefore for all image element circuits of this row, compensation electronic circuit is set, to compensate described voltage drop.Wherein, can a plurality of and each image element circuit corresponding connected compensation electronic circuit be one by one set for this row image element circuit, also can be for each image element circuit arranges same compensation electronic circuit, each image element circuit shares a compensation electronic circuit.
The first reference voltage source, the second reference voltage source and compensation electronic circuit provide respectively the first reference voltage V
ref1, the second reference voltage V
ref2with bucking voltage V
ref2-Δ V.
In Fig. 4, do not embody the first reference voltage source, the second reference voltage source and compensation electronic circuit.
It should be noted that, specifically at which image element circuit, compensation electronic circuit being set needs to determine according to the actual requirements, can in all image element circuits in distance the first reference voltage source certain a line far away, compensation electronic circuit be set or compensation electronic circuit is set separately in a certain image element circuit, as long as guarantee that the emergent ray brightness of each pixel cell corresponding region on whole display panel is evenly basic.
In specific implementation process, described compensation electronic circuit is set in different rows image element circuit according to demand.
Preferably, the lead-in wire of described compensation electronic circuit can be wherein arbitrary lead-in wire arranging with layer of the electrodes such as the negative electrode with grid, grid line, data line, source-drain electrode, luminescent device or anode or electrode wires, when making described arbitrary electrode or electrode wires, the lead-in wire of described compensation electronic circuit is made simultaneously.
Preferably, the lead-in wire of described compensation electronic circuit is connected with the second end of luminescent device, and in the specific implementation, when the compensation lead-in wire of electronic circuit and the second end of luminescent device (negative electrode or anode) are positioned at different layers, the two connects by via hole.
The utility model embodiment also provides a kind of display device, comprises above-mentioned display panel.This display device can be the display device such as ORGANIC ELECTROLUMINESCENCE DISPLAYS oled panel, OLED display, OLED TV or Electronic Paper.
In sum, the image element circuit that the utility model embodiment provides, arranges compensation electronic circuit at the cathode terminal of the luminescent device being connected with image element circuit, and this compensation electronic circuit is used for compensating luminescent device anode tap V
dddamping capacity Δ V, or the V of cathode terminal
ssdamping capacity Δ V, make to drive the luminous drive current of luminescent device and damping capacity Δ V irrelevant.
It should be noted that, transistor for field of liquid crystal display, drain electrode and source electrode do not have clear and definite difference, so the transistorized source electrode of mentioning in the utility model embodiment can be transistorized drain electrode, and transistorized drain electrode can be also transistorized source electrode.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (10)
1. an image element circuit, is characterized in that, comprising: charging electronic circuit, drive sub-circuits and compensation electronic circuit;
The first end of described drive sub-circuits is connected with the first reference voltage source by power supply lead wire, the second end is connected with the first end of luminescent device, the second end of luminescent device is connected with the first end of compensation electronic circuit, and the second end of compensation electronic circuit is connected with the second reference voltage source; The 3rd end of drive sub-circuits is connected with charging electronic circuit;
Described charging electronic circuit is drive sub-circuits charging for drive described luminescent device in described drive sub-circuits before luminous, and described compensation electronic circuit is used for compensating the voltage drop on described power supply lead wire of voltage that described the first reference voltage source offers described drive sub-circuits when described drive sub-circuits drives described luminescent device luminous.
2. image element circuit according to claim 1, it is characterized in that, described compensation electronic circuit is direct voltage source, the positive terminal of this direct voltage source is connected with described the second reference voltage source, negative pole end is connected with the second end of described luminescent device, the voltage that the voltage that this direct voltage source provides provides lower than described the second reference voltage source.
3. image element circuit according to claim 2, is characterized in that, described direct voltage source is adjustable direct voltage source.
4. according to the image element circuit described in the arbitrary claim of claim 2-3, it is characterized in that, described drive sub-circuits comprises driving transistors and electric capacity; Described charging electronic circuit comprises switching transistor, data signal source and gate signal source;
Wherein, the source electrode of described driving transistors is connected with the first reference voltage source by described power supply lead wire, and drain electrode is connected with the first end of luminescent device, and grid is connected with the first end of described electric capacity and the drain electrode of described switching transistor; The second end of described electric capacity is connected with described the first reference voltage source; The grid of described switching transistor is connected with described gate signal source, and source electrode is connected with data signal source.
5. image element circuit according to claim 4, is characterized in that, described driving transistors is N-shaped driving transistors or p-type driving transistors;
When described driving transistors is N-shaped driving transistors, described the first reference voltage source is low level voltage source, described the second reference voltage source is high level voltage source, and the negative electrode of described luminescent device is connected with described driving transistors, and anode is connected with the negative pole end of described direct voltage source;
When described driving transistors is p-type driving transistors, described the first reference voltage source is high level voltage source, described the second reference voltage source is low level voltage source, and the anode of described luminescent device is connected with described driving transistors, and negative electrode is connected with the negative pole end of described direct voltage source.
6. a display panel, is characterized in that, comprises and is a plurality of pixel cells that matrix is arranged, and each pixel cell comprises an image element circuit and the luminescent device being connected with this image element circuit, and this image element circuit is used for driving described luminescent device luminous;
Wherein, with described a plurality of pixel cells one to one image element circuit be one of at least the image element circuit with compensation electronic circuit described in the arbitrary claim of claim 1-5.
7. display panel according to claim 6, is characterized in that, with the pixel cell that is positioned at same a line one to one image element circuit be the image element circuit with compensation electronic circuit described in the arbitrary claim of claim 1-5.
8. display panel according to claim 7, is characterized in that, with the pixel cell that is arranged in same a line one to one the described compensation electronic circuit of image element circuit be same compensation electronic circuit.
9. display panel according to claim 8, it is characterized in that, described compensation electronic circuit is connected with luminescent device by lead-in wire, and the wherein arbitrary of the negative electrode of the grid in described lead-in wire and display panel, grid line, data line, source-drain electrode, luminescent device or anode arranges with layer.
10. a display device, is characterized in that, comprises the display panel described in the arbitrary claim of claim 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320390445.6U CN203480804U (en) | 2013-07-02 | 2013-07-02 | Pixel circuit, display panel, and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320390445.6U CN203480804U (en) | 2013-07-02 | 2013-07-02 | Pixel circuit, display panel, and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203480804U true CN203480804U (en) | 2014-03-12 |
Family
ID=50229092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320390445.6U Withdrawn - After Issue CN203480804U (en) | 2013-07-02 | 2013-07-02 | Pixel circuit, display panel, and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203480804U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383835A (en) * | 2013-07-02 | 2013-11-06 | 京东方科技集团股份有限公司 | Pixel circuit, display panel and display device |
| CN108648690A (en) * | 2018-04-26 | 2018-10-12 | 上海天马有机发光显示技术有限公司 | A kind of display panel and display device |
| CN109830207A (en) * | 2019-03-27 | 2019-05-31 | 京东方科技集团股份有限公司 | The method of adjustment and device of electroluminescence display panel |
-
2013
- 2013-07-02 CN CN201320390445.6U patent/CN203480804U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383835A (en) * | 2013-07-02 | 2013-11-06 | 京东方科技集团股份有限公司 | Pixel circuit, display panel and display device |
| CN103383835B (en) * | 2013-07-02 | 2015-09-09 | 京东方科技集团股份有限公司 | A kind of image element circuit, display panel and display device |
| US9251737B2 (en) | 2013-07-02 | 2016-02-02 | Boe Technology Group Co., Ltd. | Pixel circuit, display panel and display apparatus |
| CN108648690A (en) * | 2018-04-26 | 2018-10-12 | 上海天马有机发光显示技术有限公司 | A kind of display panel and display device |
| CN108648690B (en) * | 2018-04-26 | 2020-04-17 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| US10783829B2 (en) | 2018-04-26 | 2020-09-22 | Shanghai Tianma AM-OLED Co., Ltd. | Display panel and display device with uniform brightness |
| CN109830207A (en) * | 2019-03-27 | 2019-05-31 | 京东方科技集团股份有限公司 | The method of adjustment and device of electroluminescence display panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103383835B (en) | A kind of image element circuit, display panel and display device | |
| US9812082B2 (en) | Pixel circuit, driving method, display panel and display device | |
| US9262966B2 (en) | Pixel circuit, display panel and display apparatus | |
| US8378936B2 (en) | Display apparatus and method of driving the same | |
| KR101382001B1 (en) | Pixel unit circuit and oled display apparatus | |
| US9508287B2 (en) | Pixel circuit and driving method thereof, display apparatus | |
| US9496293B2 (en) | Pixel circuit and method for driving the same, display panel and display apparatus | |
| US10997905B2 (en) | Display panel and display device | |
| CN108428434B (en) | Pixel circuit, organic light-emitting display panel and display device | |
| US20200279524A1 (en) | Driving method for pixel driving circuit, display panel, and display device | |
| CN104575382A (en) | Aging compensation system and method for OLED component | |
| CN105185305A (en) | Pixel circuit, driving method thereof and related device | |
| US20160071919A1 (en) | Active Matrix Organic Light-Emitting Diode Display Substrate and Display Device | |
| CN104809989A (en) | Pixel circuit, drive method thereof and related device | |
| KR101674153B1 (en) | Organic Light Emitting Display Device and Driving Method Thereof | |
| CN103714778B (en) | Image element circuit, the driving method of image element circuit and display device | |
| CN104835452A (en) | Pixel circuit and driving method and related devices thereof | |
| CN104217682A (en) | Pixel circuit, organic electroluminescent display panel and display device | |
| US9165508B2 (en) | Display apparatus using reference voltage line for parasitic capacitance, electronic apparatus using the display apparatus and driving method of the display apparatus | |
| KR20100082933A (en) | Organic light emitting display device | |
| CN106952615A (en) | A kind of pixel-driving circuit and its driving method, display device | |
| TW201314656A (en) | Pixel circuit and driving method thereof | |
| CN203480803U (en) | Pixel circuit, display panel, and display device | |
| KR20140141192A (en) | Display device | |
| KR20140013587A (en) | Pixel and organic light emitting display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150909 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150909 |
|
| RGAV | Abandon patent right to avoid regrant |