CN105161049B - A kind of organic electroluminescence display panel and electronic equipment - Google Patents
A kind of organic electroluminescence display panel and electronic equipment Download PDFInfo
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- CN105161049B CN105161049B CN201510374402.2A CN201510374402A CN105161049B CN 105161049 B CN105161049 B CN 105161049B CN 201510374402 A CN201510374402 A CN 201510374402A CN 105161049 B CN105161049 B CN 105161049B
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- 238000005401 electroluminescence Methods 0.000 title claims abstract description 51
- 239000002184 metal Substances 0.000 claims abstract description 57
- 229910052751 metal Inorganic materials 0.000 claims abstract description 57
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 230000001427 coherent effect Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000011368 organic material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The present invention provides a kind of organic electroluminescence display panel, and the organic electroluminescence display panel includes：Substrate；The first metal layer on the substrate is set, and the first metal layer includes multi-strip scanning line, and the multi-strip scanning line arranges in the first direction；Second metal layer on the substrate is set, and the second metal layer includes a plurality of data lines, and a plurality of data lines arranges in a second direction, and the scan line is intersected with the data wire defines multiple pixel regions；The 3rd metal level being arranged between the first metal layer and the second metal layer, the 3rd metal level include multiple dummy electrodes, and each dummy electrodes have overlapping on the direction of vertical substrate with the data wire.Organic light emitting display provided by the invention is that panel can solve the problems, such as vertical crosstalk.
Description
Technical field
The present invention relates to organic light emitting display technical field, shows more particularly, to a kind of organic light emission for improving vertical crosstalk
Show panel and electronic equipment.
Background technology
Organic light emitting display (Organic Light-Emitting Display, OLED) panel, also known as organic electric shock
Light display panel, because organic electroluminescence display panel has self luminous characteristic, the very thin coating of organic material of use, work as electric current
When passing through organic material, organic material will light, and the angle of organic electroluminescence display panel is big, and can significantly save
Electric energy is saved, thus organic electroluminescence display panel possesses many traditional display panels, for example liquid crystal display panel is incomparable
Advantage.
Vertical crosstalk phenomenon in organic electroluminescence display panel passes through experimental verification, organic light emitting display face than more serious
The vertical crosstalk origin cause of formation of plate substantially has two kinds, is that vertical crosstalk and data wire cause caused by the pressure drop on power input line respectively
Vertical crosstalk.Vertical crosstalk caused by data wire is principal element at present, be need to improve, at present in organic light emitting display
In the circuit design of panel, without effectively Improving Measurements, merely by two layers of gold medal in reduction organic electroluminescence display panel
Belong to the overlapping area of wiring, to reduce crosstalk, but this mode is very limited to the decrease of vertical crosstalk phenomenon.
The content of the invention
In order to solve the problems, such as vertical crosstalk in organic electroluminescence display panel, the present invention provides a kind of organic light emitting display face
Plate, the organic electroluminescence display panel include：
Substrate；
The first metal layer on the substrate is set, and the first metal layer includes multi-strip scanning line, described a plurality of to sweep
Line is retouched to arrange in the first direction；
Second metal layer on the substrate is set, and the second metal layer includes a plurality of data lines, a plurality of number
Arranged in a second direction according to line, the scan line is intersected with the data wire defines multiple pixel regions；
The 3rd metal level being arranged between the first metal layer and the second metal layer, the 3rd metal level bag
Multiple dummy electrodes are included, each dummy electrodes have overlapping on the direction of vertical substrate with the data wire.
The present invention also provides a kind of electronic equipment, including organic electroluminescence display panel as described above.
Organic electroluminescence display panel and electronic equipment provided by the invention, because dummy electrodes are on the direction of vertical substrate
Overlapped with data wire, therefore, dummy electrodes can shield signal on data wire to other circuits on organic electroluminescence display panel
The influence of structure, the problem of so as to weaken vertical crosstalk, obtain more preferable display effect.
Brief description of the drawings
Fig. 1 is the display picture that a kind of organic electroluminescence display panel produces vertical crosstalk；
Fig. 2 is a kind of schematic top plan view of organic electroluminescence display panel provided by the invention；
Fig. 3 is schematic cross-sections of the Fig. 2 along AA ' directions；
Fig. 4 is the schematic top plan view of another organic electroluminescence display panel provided by the invention；
Fig. 5 is a kind of organic electroluminescence display panel drive circuit figure；
Fig. 6 is the schematic top plan view of another organic electroluminescence display panel provided by the invention；
Fig. 7 is the network structure schematic diagram in organic electroluminescence display panel provided by the invention.
Embodiment
In order to be explained in greater detail the present invention technology contents, especially exemplified by illustrated appended by specific embodiment and cooperation as
Under, but the following drawings and embodiment are not limitation of the present invention, are had in any art usual
Skill, without departing from the spirit and scope of the present invention, when can make a little change and retouching, therefore the protection model of the present invention
Enclose to work as and be defined depending on those as defined in claim.
Organic electroluminescence display panel generally existing vertical crosstalk, Producing reason exist mainly due to the voltage on data wire
Changed in one frame time and caused.Pixel region in organic electroluminescence display panel is generally arranged in array, for same
Pixel region on one row, inputted by same data wire and show signal, when data wire is to each pixel for being connected thereto
The display signal of region input is when changing, the problem of will producing vertical crosstalk, below for a typical example for
It is bright, when need the picture that shows for a black rectangle under white background when, the problem of due to vertical crosstalk, in black square
The grey more dark than periphery white can be shown above and below shape, may be referred to Fig. 1, Fig. 1 is a kind of organic light emitting display face
Plate produces the display picture of vertical crosstalk, and the signal that the picture that Fig. 1 is shown is inputted is one black of display in white background
Rectangle (see the rectangle of middle dash area in Fig. 1), can show more dark than periphery white above and below black rectangle
Grey (as shown in Fig. 1 bend dash areas), for parallel 2 points of A, B, when scanning to the pixel column where 2 points of A, B
When, data wire can be to the signal of 2 points of input identical display white of A, B, but when scanning is to black rectangle, is counted corresponding to A points
According to the display signal voltage rise (or reduction) of line input, and the signal that data wire corresponding to B points inputs is constant, due to same row
On pixel region linked together by same data wire, therefore, corresponding to A points on data wire rise (or reduce) it is aobvious
Show that signal produces crosstalk to the pixel region of A points, cause A points dimmed, and the signal that data wire corresponding to B points inputs is constant, because
This will not have an impact to B points, so A can be somewhat secretly in B.The influence of this vertical crosstalk until the black rectangle end of scan and
Terminate, so as to which the displays of A points can substantially return to normally, but the brightness of human eye perception is the average value in certain time, institute
It is exactly A points secretly in B points with macroscopical picture seen by person.
Fig. 2 is a kind of schematic top plan view of organic electroluminescence display panel provided by the invention, organic hair provided by the invention
Light display panel includes substrate (not shown in FIG. 2), the first metal layer, second metal layer and the 3rd metal level, wherein first
Metal level includes multi-strip scanning line 11, and X-direction arranges multi-strip scanning line 11 in the first direction；Second metal layer includes more datas
Line 21, Y-direction arranges a plurality of data lines 21 in a second direction, and multi-strip scanning line 11 is intersected with a plurality of data lines 21 defines multiple pictures
Plain region 50 (in dotted line frame)；3rd metal level is arranged between the first metal layer and second metal layer, and the 3rd metal level includes
Multiple dummy electrodes 31, each dummy electrodes 31 have overlapping on the direction of vertical substrate with data wire 21.To describe herein
It is that first direction X-direction and second direction Y-direction may not be orthogonal, both intersect.
In order to illustrate more clearly of the structure of organic electroluminescence display panel provided by the invention, Fig. 3 is may be referred to, Fig. 3 is
Schematic cross-sections of the Fig. 2 along AA ' directions, as shown in Fig. 2 organic electroluminescence display panel provided by the invention includes substrate 10, the
One metal level, second metal layer and the 3rd metal level, the first metal layer include scan line 11, and second metal layer includes data wire
21, the 3rd metal level includes dummy electrodes 31, and on the direction of vertical substrate 10, dummy electrodes 31 are in scan line 11 and data wire
Between 21, that is to say, that on the direction of vertical substrate 10, the 3rd metal level is between the first metal layer and second metal layer.
Also, on the direction of vertical substrate 10, dummy electrodes 31 are overlapping with data wire 21.
Organic electroluminescence display panel provided by the invention is handed over due to dummy electrodes on the direction of vertical substrate with data wire
Folded, therefore, dummy electrodes can shield influence of the signal to other circuit structures on organic electroluminescence display panel on data wire,
The problem of so as to weaken vertical crosstalk, obtain more preferable display effect.
In order to shield influence of the signal on data wire to organic electroluminescence display panel to greatest extent, virtual electricity can be made
There is overlapping part as much as possible pole with data wire.Therefore, there will be overlapping multiple pixels with data wire described in same respectively
The dummy electrodes in region link together, and with reference to figure 4, Fig. 4 is another organic light emitting display face provided by the invention
The schematic top plan view of plate, shows the structure of two pixel regions in Fig. 4, and the dummy electrodes 31 in two pixel regions are connected to
Together so that together with dummy electrodes 31 are coherent with the overlapping region of the data wire 21 in two pixel regions, reach increase and hand over
The purpose in folded region.It is, of course, also possible to be in multiple pixel regions corresponding with data wire described in same even and same
Dummy electrodes corresponding to the data wire in all pixels region are both connected to together, to improve dummy electrodes to greatest extent
With the overlapping region of data wire.In some cases, data wire needs to carry out electricity by via across the 3rd metal level and active layer
Connection, in this case, dummy electrodes can in via area opening, with around via area, or, as shown in figure 4, in number
According to a protuberance is formed on line 21, the protuberance of data wire 21 is realized by via 42 with active layer to be electrically connected.
For active type organic electroluminescence display panel, each pixel in organic electroluminescence display panel passes through a driving
Circuit drives are luminous to realize display, and drive circuit is varied, the next individual drive circuit of normal conditions include multiple transistors and
At least one electric capacity, with reference to figure 5, Fig. 5 is a kind of organic electroluminescence display panel drive circuit figure, and shown drive circuit includes switch
Transistor T1, driving transistor T2 and storage capacitance C1, switching transistor T1 are used for Vdata (display signal) on control data line
Input, switching transistor T1 grid is connected with scan line (SCAN), and driving transistor T2 is used to drive organic light-emitting diodes
Manage (OLED) to light, storage capacitance C1 is used for the luminance for keeping Organic Light Emitting Diode (OLED) in a frame time.This
Invention is not limited to that, using the drive circuit shown in Fig. 5, other drive circuits can also be used, it is generally the case that driving electricity
Road includes a switching transistor and one or more driving transistors and a storage capacitance, also includes in some cases
Other electric capacity.
Drive circuit for forming organic electroluminescence display panel as described above, can make full use of each metal level,
Therefore the first metal layer can also include multiple driving transistor grids, and the 3rd metal level can also include multiple capacitance electrodes,
Multiple driving transistor grids have on the direction of vertical substrate overlapping with multiple capacitance electrodes simultaneously, still with reference to figure 4, first
Metal level can also include multiple driving transistor grids 12 and (illustrate only in figure brilliant comprising a driving in a pixel region
The situation of body tube grid), the 3rd metal level can also include multiple capacitance electrodes 32, multiple driving transistor grids 12 with it is multiple
Capacitance electrode 32 has overlapping on the direction of vertical substrate, therefore, is formed between driving transistor grid 12 and capacitance electrode 32
Electric capacity is used for the driving shown.The electric capacity formed using this metal and metal, metal different from the past are formed with active layer
Electric capacity, it is easier to control the accuracy of capacitance, ensure that the validity of drive circuit.
With continued reference to Fig. 4, equally, in order to make full use of metal level, second metal layer can also include a plurality of power input
Line 22, the effect of power input line in the driving circuit are for inputting the high level of driving organic light-emitting diode (ginseng
Examine the PVDD in Fig. 5), a plurality of power input line 22 arranges in the first direction, substantially consistent with the orientation of data wire 21, extremely
A few capacitance electrode 32 electrically connects with power input line 22.Talk about above, a storage electricity can be included in a drive circuit
Hold, also include other electric capacity in some cases, the capacitance electrode for forming storage capacitance, it may be connected to power input line,
As shown in Figure 4, capacitance electrode 32 is connected by via 41 with power input line 22.
Further, the capacitance electrode in the one-row pixels region arranged in a second direction can also be linked together,
With reference to figure 6, Fig. 6 is the schematic top plan view of another organic electroluminescence display panel provided by the invention, in embodiment illustrated in fig. 6 with
Previous embodiment identical part will not be repeated here, and difference is, in the one-row pixels region arranged in a second direction
Capacitance electrode links together, specifically, as shown in fig. 6, the capacitance electrode in the one-row pixels region arranged in a second direction
321 and capacitance electrode 322 link together, the capacitance electrode 323 and electricity in another row pixel region arranged in a second direction
Holding electrode 324 can also link together.Alternatively, the capacitance electrode connection in the one-row pixels region arranged in a second direction
Get up to be formed a coherent path.Because the capacitance electrode for forming storage capacitance electrically connects with power input line, therefore alternatively,
When the capacitance electrode of the formation storage capacitance in multirow pixel region, which is respectively coupled, forms coherent path together, it is connected
Capacitance electrode and power input line will form network structure, specifically may be referred to Fig. 7, Fig. 7 is organic hair provided by the invention
Network structure schematic diagram in light display panel, as shown in fig. 7, a plurality of power input line 22 arranges in a second direction, each row picture
The path 35 that the capacitance electrode of formation storage capacitance in plain region is joined together to form arranges in the first direction, power input
The path 35 of line 22 and each row has electrical connection in infall, therefore, forms the network structure with same current potential.Normal conditions
Under, drive the power supply (PVDD) of organic electroluminescence display panel can be from the power circuit (Power of the side of organic electroluminescence display panel
IC) input, due to the resistance on power input line, PVDD can form pressure drop during transmission on power input line, lead
Cause further away from power input, drive the power supply of organic electroluminescence display panel more insufficient.In such as Fig. 7 embodiment, formation
Network structure can be more favorable for transmission of the PVDD on power input line, reduce pressure drops of the PVDD on power input line.
In the case of belonging to the 3rd metal level for capacitance electrode and dummy electrodes, because capacitance electrode is in second direction
On form coherent electrical connection, what the dummy electrodes of corresponding same data wire can not be realized on first direction coherent is electrically connected
Connect, reason is that first direction intersects with second direction, therefore can be by the one-row pixels region arranged in a second direction
Dummy electrodes link together, and specifically may be referred to Fig. 7, as shown in fig. 7, in the one-row pixels region arranged in a second direction
Dummy electrodes 311 and dummy electrodes 312 link together, the dummy electrodes in another row pixel region arranged in a second direction
313 and dummy electrodes 314 can also link together.Alternatively, it is virtual in the one-row pixels region arranged in a second direction
Electrode connects to form a coherent path.
Dummy electrodes in the organic electroluminescence display panel provided in above-described embodiment can keep hanging state, hang
Dummy electrodes need not be realized with any electrical connection under dummy status, be easier to realize, while can also have and preferably keep away
The signal exempted from data wire impacts to other circuit structures.
In further embodiment, dummy electrodes can also be connected to fixed potential, can obtain dummy electrodes more preferable
Shield effectiveness, the not specific restriction of selection for fixed potential, only need to can be realized on organic electroluminescence display panel
Current potential.Be connected the form of current potential for dummy electrodes, and dummy electrodes can use the embodiment shown in Fig. 4,
Dummy electrodes corresponding to a data line are both connected to one coherent path of formation together, therefore, can be in organic light emission
The input of current potential is fixed in the lower edges of display panel, that is, the end of path that dummy electrodes are formed；It is or virtual
Electrode can use the embodiment shown in Fig. 6, and the dummy electrodes in one-row pixels region arranged in a second direction connect
, therefore, can be in the left and right edges of organic electroluminescence display panel to form a coherent path, that is, dummy electrodes are formed
The input of current potential is fixed in the end of path.It is of course also possible to the defeated of current potential is fixed respectively to scattered dummy electrodes
Enter.
The embodiment of the present invention also provides a kind of electronic equipment, including organic electroluminescence display panel provided by the invention.For
Electronic equipment provided by the invention, because dummy electrodes overlap on the direction of vertical substrate with data wire, therefore, dummy electrodes
Influence of the signal to other circuit structures on organic electroluminescence display panel on data wire can be shielded, so as to weaken vertical crosstalk
The problem of, obtain more preferable display effect.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (9)
1. a kind of organic electroluminescence display panel, the organic electroluminescence display panel includes：
Substrate；
The first metal layer on the substrate is set, and the first metal layer includes multi-strip scanning line, the multi-strip scanning line
Arrange in the first direction；
Second metal layer on the substrate is set, and the second metal layer includes a plurality of data lines, a plurality of data lines
Arrange in a second direction, the scan line is intersected with the data wire defines multiple pixel regions；
The 3rd metal level being arranged between the first metal layer and the second metal layer, the 3rd metal level include more
Individual dummy electrodes, each dummy electrodes have overlapping on the direction of vertical substrate with the data wire；
On the direction of the vertical substrate, the dummy electrodes are between the scan line and the data wire.
2. organic electroluminescence display panel as claimed in claim 1, there are overlapping multiple institutes with data wire described in same respectively
The dummy electrodes stated in pixel region link together.
3. organic electroluminescence display panel as claimed in claim 1, the first metal layer also includes multiple driving transistor grid
Pole, the 3rd metal level also include multiple capacitance electrodes, the multiple driving transistor grid and the multiple capacitance electrode
Have on the direction of vertical substrate overlapping.
4. organic electroluminescence display panel as claimed in claim 3, the second metal layer also includes a plurality of power input line, institute
State a plurality of power input line to arrange along the second direction, at least one capacitance electrode is electrically connected with the power input line
Connect.
5. organic electroluminescence display panel as claimed in claim 4, along pixel region described in a line of second direction arrangement
The interior capacitance electrode links together.
6. organic electroluminescence display panel as claimed in claim 5, along pixel region described in a line of second direction arrangement
The interior dummy electrodes link together.
7. organic electroluminescence display panel as claimed in claim 1, the dummy electrodes are hanging.
8. the organic electroluminescence display panel as described in claim 2 or claim 6, the dummy electrodes are connected current potential.
9. a kind of electronic equipment, including the organic electroluminescence display panel as described in claim 1-8 is any.
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| CN201510374402.2A CN105161049B (en) | 2015-06-30 | 2015-06-30 | A kind of organic electroluminescence display panel and electronic equipment |
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| CN201510374402.2A CN105161049B (en) | 2015-06-30 | 2015-06-30 | A kind of organic electroluminescence display panel and electronic equipment |
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| CN105161049B true CN105161049B (en) | 2017-12-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10490122B2 (en) * | 2016-02-29 | 2019-11-26 | Samsung Display Co., Ltd. | Display device |
| KR102504948B1 (en) * | 2016-06-14 | 2023-03-03 | 삼성디스플레이 주식회사 | Display device |
| KR102613863B1 (en) | 2016-09-22 | 2023-12-18 | 삼성디스플레이 주식회사 | Display device |
| KR102611958B1 (en) | 2016-09-23 | 2023-12-12 | 삼성디스플레이 주식회사 | Display device |
| KR102559096B1 (en) | 2016-11-29 | 2023-07-26 | 삼성디스플레이 주식회사 | Display device |
| KR20180096875A (en) | 2017-02-21 | 2018-08-30 | 삼성디스플레이 주식회사 | Display device |
| CN107274829B (en) * | 2017-07-10 | 2020-04-14 | 上海天马有机发光显示技术有限公司 | Organic electroluminescent display panel and display device |
| CN107958922B (en) * | 2017-12-11 | 2020-06-30 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display panel |
| CN111562858B (en) * | 2020-04-28 | 2024-04-09 | 京东方科技集团股份有限公司 | Touch display module, display device and touch method |
| CN111710684A (en) * | 2020-06-10 | 2020-09-25 | 深圳市华星光电半导体显示技术有限公司 | Array substrate and display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0239130A (en) * | 1988-07-29 | 1990-02-08 | Sharp Corp | Liquid crystal display device |
| US5953088A (en) * | 1997-12-25 | 1999-09-14 | Kabushiki Kaisha Toshiba | Liquid crystal display with shield electrodes arranged to alternately overlap adjacent pixel electrodes |
| US20040174483A1 (en) * | 2003-03-07 | 2004-09-09 | Yayoi Nakamura | Liquid crystal display device having auxiliary capacitive electrode |
| CN103137616B (en) * | 2011-11-25 | 2017-04-26 | 上海天马微电子有限公司 | TFT array substrate, forming method thereof and display panel |
| JP5929136B2 (en) * | 2011-12-05 | 2016-06-01 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
| KR101980757B1 (en) * | 2012-12-13 | 2019-05-21 | 엘지디스플레이 주식회사 | Organic light-emitting diode display device |
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Effective date of registration: 20211101 Address after: No.8, liufangyuan Henglu, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Patentee after: Tianma Micro-Electronics Co.,Ltd. Address before: 201201, 889, Qing Qing Road, Shanghai, Pudong New Area Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. Patentee before: Tianma Micro-Electronics Co.,Ltd. |
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