CN108549180A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN108549180A CN108549180A CN201810276898.3A CN201810276898A CN108549180A CN 108549180 A CN108549180 A CN 108549180A CN 201810276898 A CN201810276898 A CN 201810276898A CN 108549180 A CN108549180 A CN 108549180A
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- lead
- underlay substrate
- groove
- display
- display panel
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a kind of display panel and display devices, by the way that groove is arranged in fan-out area, and the second lead is housed in groove, so that region intensive in the second lead and long, the phenomenon that region can be avoided to be occurred by padded problem when making planarization layer, and then improve the brightness disproportionation in the region；Further, since orthographic projection of the groove on underlay substrate and orthographic projection of first lead on underlay substrate are non-overlapping so that when being equipped with the second lead in groove, will not with other first lead short circuit, to ensure the normal display of display panel.
Description
Technical field
The present invention relates to display technology field, espespecially a kind of display panel and display device.
Background technology
The type of existing display, including liquid crystal display (Liquid Crystal Display, LCD) and organic electroluminescence
Active display (Organic Electro-luminesecent Display, OLED), wherein liquid crystal display are non-spontaneous
Optical display unit needs backlight module to provide backlight to realize display function, so liquid crystal display is in terms of ultra-thin and ultra-light
Development receives certain limitation；And OLED display is then self-emitting display, so it is not necessary that backlight module is arranged so that
OLED display has prodigious advantages for development in terms of ultra-thin and ultra-light.
Either liquid crystal display or OLED display, in order to realize display function, it usually needs by display area
Data line is electrically connected by the lead of fan-out area with driving chip, so that driving chip provides corresponding signal for data line.
However, for current 12.3 cun and for being provided only with the display of single driving chip, since the size of display is wider, lead
It causes the lead in fan-out area intensive and long, in this case, apparent film thickness is will appear after having made planarization layer not
Equal problem, that is to say, that the thickness of the planarization layer of fan-out area will be significantly greater than the thickness of other positions, so that fan
Go out the phenomenon that region is susceptible to brightness disproportionation, influences display effect.
Based on this, the lead in fan-out area is intensive and in the case of length, how to improve the brightness disproportionation of fan-out area
The phenomenon that, it is those skilled in the art's technical problem urgently to be resolved hurrily.
Invention content
An embodiment of the present invention provides a kind of display panel and display device, to improve the brightness disproportionation of fan-out area
Phenomenon.
An embodiment of the present invention provides a kind of display panels, including：
Underlay substrate, the underlay substrate include display area and neighboring area；The neighboring area includes：Fanout area
Domain, and far from the display area side and it is located at the test section at the fan-out area both ends positioned at the fan-out area
Domain；
The first signal wire on the display area of the underlay substrate；
On the neighboring area of the underlay substrate and the non-fan-out area and non-test region with
The first signal wire second signal line disposed in parallel；
The first lead and the second lead being sequentially located on the fan-out area of the underlay substrate；Described second draws
Line includes：First sub- lead and the second sub- lead；The first sub- lead electrical connection corresponding with first signal wire；Described
The electrical connection corresponding with the second signal line of two sub- leads；
Testing cushion on the test zone of the underlay substrate, first lead and the testing cushion pair
It should be electrically connected；First lead and second lead it is arranged in a crossed manner and correspond electrical connection；
And the groove on the fan-out area of the underlay substrate；Described second is equipped in the groove
Lead；And orthographic projection of the groove on the underlay substrate and orthographic projection of first lead on the underlay substrate
It is non-overlapping.
On the other hand, the embodiment of the present invention additionally provides a kind of display device, including：On provided in an embodiment of the present invention
State display panel.
The present invention has the beneficial effect that：
A kind of display panel provided in an embodiment of the present invention and display device, by the way that groove is arranged in fan-out area, and it is recessed
The second lead is housed in slot so that region intensive in the second lead and long can avoid the region when making planarization layer
The phenomenon that being occurred by padded problem, and then improving the brightness disproportionation in the region；Further, since groove on underlay substrate just
Projection is non-overlapping with orthographic projection of first lead on underlay substrate so that, will not when being equipped with the second lead in groove
With other first lead short circuit, to ensure the normal display of display panel.
Description of the drawings
Fig. 1 is the structural schematic diagram of the display panel provided in the embodiment of the present invention；
Fig. 2 is the sectional view along the directions m-m ' shown in Fig. 1；
Fig. 3 and Fig. 4 is respectively the sectional view along the directions n-n ' shown in Fig. 1；
Fig. 5 is to be compared with the thickness of the planarization layer in display area in the fan-out area provided in the embodiment of the present invention
Figure；
Fig. 6 is the structural schematic diagram of the display device provided in the embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, to the specific embodiment party of a kind of display panel provided in an embodiment of the present invention and display device
Formula is described in detail.It should be noted that described embodiments are only a part of the embodiments of the present invention, rather than it is complete
The embodiment in portion.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a kind of display panels, as shown in Figures 1 to 4, wherein Fig. 1 is the knot of display panel
Structure schematic diagram, Fig. 2 are the sectional view along the directions m-m ' shown in Fig. 1, and Fig. 3 and Fig. 4 are along n-n ' shown in Fig. 1
The sectional view in direction；Display panel may include：
Underlay substrate 10；Underlay substrate 10 may include：Display area 20 and the neighboring area (area except display area 20
Domain is neighboring area)；Neighboring area may include：Fan-out area 30, and positioned at fan-out area 30 far from display area 20
Side and the test zone (such as 40a and 40b) for being located at 30 both ends of fan-out area；
The first signal wire S1 on the display area of underlay substrate 10 20；
On the neighboring area of underlay substrate 10 and non-fan-out area 30 and non-test region (such as 40a and 40b)
With the first signal wire S1 second signal line S2 disposed in parallel；
The the first lead F1 and the second lead F2 being sequentially located on the fan-out area 30 of underlay substrate 10；Second lead F2
Including：The first sub- sub- lead F22 of lead F21 and second；First sub- lead F21 electrical connections corresponding with the first signal wire S1；Second
Sub- lead F22 electrical connections corresponding with second signal line S2；
Testing cushion p, the first lead F1 and testing cushion p on the test zone (such as 40a and 40b) of underlay substrate 10
Corresponding electrical connection；First lead F1 and the second lead F2 is arranged in a crossed manner and corresponds electrical connection；Wherein, in the specific implementation,
The setting quantity of testing cushion p is not limited to quantity shown in Fig. 1, can be adjusted according to actual needs, to meet VT surveys
Required signal input when examination；
And the groove 50 on the fan-out area of underlay substrate 10 30；The second lead F2 is equipped in groove 50；
And orthographic projection of the groove 50 on underlay substrate 10 and orthographic projections of the first lead F1 on underlay substrate 10 are non-overlapping, such as Fig. 2
It is shown.
Above-mentioned display panel provided in an embodiment of the present invention, by the way that groove 50 is arranged in fan-out area 30, and in groove 50
Accommodating second lead F2 so that region intensive in the second lead F2 and long can avoid the region when making planarization layer
Occurred by padded problem, and then the difference of box thick (the cell gap) and the box thickness in other regions in the region can be effectively reduced
It is different, keep the consistency in gap between array substrate and opposite substrate in display panel, so as to improve the region brightness not
Equal phenomenon；Further, since orthographic projection of the groove 50 on underlay substrate 10 and positive throwing of first lead on underlay substrate 10
Shadow is non-overlapping so that, will not be short-circuit with the first lead of others F1 when being equipped with the second lead F2 in groove 50, to protect
Demonstrate,prove the normal display of display panel.
Although being pointed out that the second lead F2 includes the first sub- sub- lead F22 of lead F21 and second, and specific
When implementation, the first sub- sub- lead F22 of lead F21 and second can be placed in groove 50, that is to say, that can in groove 50
To house the first sub- sub- lead F22 of lead F21 and/or second.
It may also be noted that as shown in Figure 1, the first signal wire S1 referred in embodiments of the present invention can be data
Line；Also, further include in display panel：Positioned at the neighboring area of underlay substrate 10 and non-fan-out area 30 and non-test region
When shift register 60 on (such as 40a and 40b), it be provided as shown in Figure 1, second signal line S2 can be shift register 60
Drive signal.Certainly, however it is not limited to shown in Fig. 1, the first signal wire can be that shift register 60 provide drive signal, and second
Signal wire is data line, is not limited herein.And in embodiments of the present invention, it is using the first signal wire S1 as data line
Binary signal line S2 is for shift register 60 provides drive signal, to be explained to display panel provided in an embodiment of the present invention
With explanation.
In the specific implementation, in embodiments of the present invention, in addition to being provided with the first signal wire S1 and the in display area 20
Except binary signal line S2, as shown in Figure 3 and Figure 4, display area 20 can also include：Transistor 70；If display panel is liquid crystal
When display panel, which is driving transistor, for providing drive signal under the control of grid line for pixel electrode；If
When display panel is electroluminescence display panel, which belongs to pixel-driving circuit, for driving luminescence unit to shine.
Also, the second lead F2 can be with the source/drain same material in transistor 70 and same layer setting, and the first lead F1 can be with crystal
(not shown) is arranged in grid same material and same layer in pipe 70, can simultaneously be made in the source/drain in making transistor 70
Go out the second lead F2, similarly, the first lead F1 can be produced simultaneously in the grid in making transistor 70, to be conducive to
Simplify manufacture craft, reduces cost of manufacture.
In the specific implementation, in embodiments of the present invention, as shown in Figures 2 to 4, display panel can also include：It is located at
Insulating layer 80 between first lead F1 and the second lead F2；At this point, due to the different layer settings of the first lead F1 and the second lead F2,
So in order to realize that the first lead F1 is electrically connected with the second lead F2 one-to-one correspondence, the first lead F1 and the second lead F2 passed through
Hole (k as in Figure 1 and Figure 2) is electrically connected.
It should be noted that being that the second son draws with the second signal line S2 leads being electrically connected in embodiments of the present invention
Line F22, and be the first sub- lead F21 with the first signal wire S1 leads being electrically connected, as shown in Figure 1.Also, draw due to second
Line F2 includes the first sub- sub- lead F22 of lead F21 and second, and in the first sub- lead F21 electricity corresponding with the first signal wire S1
Connection, when corresponding with the second signal line S2 electrical connections of the second sub- lead F22, second in the first lead F1 and the second lead F2 is sub
Lead F22 corresponds electrical connection, as shown in Figure 1, so that realization is to shift register 60 and grid line when carrying out VT tests
Detection, excludes underproof product.
In addition, as shown in Figures 2 to 4, groove 50 can be located in insulating layer 80 at this time, in this way, only to insulating layer 80
Structure be modified, other structures can't be had an impact, will not make complex manufacturing technology, additionally it is possible to avoid fanning
The phenomenon that brightness disproportionation for going out region 30, occurs, and improves display effect and therefore groove 50 is set in insulating layer 80, can be with
Realize the double effects for simplifying manufacture craft and improving display effect.
Optionally, in embodiments of the present invention, as shown in Fig. 2, the second lead F2 in groove 50 is far from substrate base
One side surface of plate 10 and side of the insulating layer 80 far from underlay substrate 10 between the first lead F1 and the second lead F2
Surface may be at same plane, dotted line as shown in Figure 2, in this way, can be effectively ensured after making planarization layer, be fanned out to
It is highly consistent with the planarization layer in display area 20 in region 30, it effectively prevents being occurred by padded situation, greatly improve
Display effect.
It certainly, in the specific implementation, in embodiments of the present invention, can be with as shown in figure 4, being located at second in groove 50
A side surfaces of the lead F2 far from underlay substrate 10 and the insulating layer 80 between the first lead F1 and the second lead F2 are separate
One side surface of underlay substrate 10 can be not at same plane, that is to say, that the depth d of groove 502More than the second lead F2
Thickness d1So that the second lead F2 is trapped in completely in groove 50；In this way, it is possible to prevente effectively from when making planarization layer by
In the second lead F2 arrange intensive and setting it is longer caused by planarization layer occurred by padded problem, it is uniform to improve display
Property.
In the specific implementation, in order to ensure be located at groove 50 in the second sides of the lead F2 far from underlay substrate 10
Surface and a side surface of the insulating layer 80 far from underlay substrate 10 between the first lead F1 and the second lead F2 can be located
It is intensive by the second lead of Scanning electron microscopy pair F2 before determining the making depth of groove 50 in same plane
And the thickness (right part of flg) of the thickness (left hand view) of the planarization layer in long region and the planarization layer in display area 20 into
Go contrast test, it is as a result shown in Figure 5.
Known to result as shown in Figure 5：First, in the fan-out area shown in left hand view, adjacent two second leads
Between spacing be 3 microns, and the spacing between two data lines adjacent in the display area shown in right part of flg is long-range
In 3 microns, so the arrangement comparatively dense of the second lead in fan-out area；Second, in the fan-out area shown in left hand view,
The thickness of planarization layer above second lead is 2.92 microns, and data line in the display area shown in right part of flg
The thickness of the planarization layer of top is 2.58 microns, it is clear that the thickness of the planarization layer above the second lead in fan-out area
It is greater than the thickness of the planarization layer above the data line in display area；Third, in the fan-out area shown in left hand view,
The thickness of the planarization layer above position between two second leads is 3.57 microns, the display area shown in right part of flg
Interior, the thickness of the planarization layer above position between two data lines is 3.1 microns, it is clear that two articles in fan-out area the
The thickness of the planarization layer above position between two leads is greater than on the position between two data lines in display area
The thickness of the planarization layer of side.
Therefore, according to the above results it is found that planarization in the thickness and display area of planarization layer in fan-out area
The difference of the thickness of layer is 0.4 microns can set at least to 0.4 so when groove 50 is arranged by the depth of groove 50
Micron, the difference of the thickness of the planarization layer in thickness and display area to advantageously reduce the planarization layer in fan-out area.
In addition, according to setting to the thickness of the insulating layer between the first lead and the second lead in presently relevant technology
It sets, the setting of the thickness of the second lead, current manufacture craft, and in order to avoid the occurrence of to the maximum extent in fan-out area 30
Planarization layer by padded phenomenon, the depth of groove 50 can be at most set as 0.8 micron.
It to sum up analyzes, in embodiments of the present invention, the depth of groove 50 can be between 0.4 micron to 0.8 micron, to have
Effect avoids the occurrence of the planarization layer in fan-out area 30 by padded phenomenon, improves display effect.
Optionally, in embodiments of the present invention, the depth of groove 50 could be provided as 0.6 micron, to reduce making hardly possible
While spending, display effect is improved.
In the specific implementation, since in fan-out area 30, the first lead F1 and the second lead F2 is arranged in a crossed manner and recessed
Orthographic projection of the slot 50 on underlay substrate 10 and orthographic projections of the first lead F1 on underlay substrate 10 are non-overlapping, so being arranged
When being equipped with the groove 50 of the second lead F2, in embodiments of the present invention, groove 50 can be provided with multiple and at least partly recessed
Slot 50 is separated by the first lead F1.
It specifically, in embodiments of the present invention, can be with as shown in figure 3, can only house one second in a groove 50
Lead F2, in this way, it is possible to prevente effectively from the interference generated by short circuit between the second adjacent lead F2, is imitated to improve display
Fruit；It is, of course, also possible to which as shown in figure 4, a plurality of second lead F2 can also be housed in a groove 50, in this way, can subtract significantly
The setting quantity of few groove 50, simplifies manufacture craft；Therefore, in embodiments of the present invention, can at least hold in a groove 50
Set a second lead F2.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of display device, as shown in fig. 6, may include：
Such as above-mentioned display panel d provided in an embodiment of the present invention.The display device can be：Mobile phone, tablet computer, television set, display
Any product or component with display function such as device (as shown in Figure 6), laptop, Digital Frame, navigator.The display
The implementation of device may refer to the embodiment of above-mentioned display panel, and overlaps will not be repeated.
An embodiment of the present invention provides a kind of display panel and display devices, by the way that groove is arranged in fan-out area, and it is recessed
The second lead is housed in slot so that the intensive and long region of the second lead is being set, this can be avoided when making planarization layer
Region is occurred by padded problem, and then the phenomenon that improve the brightness disproportionation in the region；Further, since groove is on underlay substrate
Orthographic projection and orthographic projection of first lead on underlay substrate it is non-overlapping so that when being equipped with the second lead in groove,
Will not with other first lead short circuit, to ensure the normal display of display panel.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of display panel, which is characterized in that including：
Underlay substrate, the underlay substrate include display area and neighboring area；The neighboring area includes：Fan-out area, with
And far from the display area side and it is located at the test zone at the fan-out area both ends positioned at the fan-out area；
The first signal wire on the display area of the underlay substrate；
On the neighboring area of the underlay substrate and the non-fan-out area and non-test region with it is described
First signal wire second signal line disposed in parallel；
The first lead and the second lead being sequentially located on the fan-out area of the underlay substrate；The second lead packet
It includes：First sub- lead and the second sub- lead；The first sub- lead electrical connection corresponding with first signal wire；Second son
Lead electrical connection corresponding with the second signal line；
Testing cushion on the test zone of the underlay substrate, the first lead electricity corresponding with the testing cushion
Connection；First lead and second lead it is arranged in a crossed manner and correspond electrical connection；
And the groove on the fan-out area of the underlay substrate；Described second is equipped in the groove to draw
Line；And orthographic projection of the groove on the underlay substrate and orthographic projection of first lead on the underlay substrate without
Overlapping.
2. display panel as described in claim 1, which is characterized in that the display panel further includes：Draw positioned at described first
Insulating layer between line and second lead；First lead is electrically connected with second lead by the way that via is corresponding；
The groove is located in the insulating layer.
3. display panel as claimed in claim 2, which is characterized in that be located at second lead in the groove far from institute
A side surface of underlay substrate and the insulating layer between first lead and second lead are stated far from described
One side surface of underlay substrate is in same plane.
4. display panel as described in claim 1, which is characterized in that the depth of the groove 0.4 micron to 0.8 micron it
Between.
5. display panel as claimed in claim 4, which is characterized in that the depth of the groove is 0.6 micron.
6. display panel as described in claim 1, which is characterized in that the groove is provided with multiple.
7. display panel as claimed in claim 6, which is characterized in that at least one described second accommodating in a groove
Lead.
8. display panel as described in claim 1, which is characterized in that the display area further includes：Transistor；
Second lead and the source/drain same material in the transistor and same layer setting；
First lead and the grid same material in the transistor and same layer setting.
9. such as claim 1-8 any one of them display panels, which is characterized in that first signal wire is data line；
The display panel further includes：Positioned at the neighboring area of the underlay substrate and non-fan-out area and non-test area
Shift register on domain；The second signal line provides drive signal for the shift register.
10. a kind of display device, which is characterized in that including：Such as claim 1-9 any one of them display panels.
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| CN201810276898.3A CN108549180A (en) | 2018-03-30 | 2018-03-30 | A kind of display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810276898.3A CN108549180A (en) | 2018-03-30 | 2018-03-30 | A kind of display panel and display device |
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| CN109448618A (en) * | 2018-12-25 | 2019-03-08 | 上海天马有机发光显示技术有限公司 | A kind of driving method of display panel, display device and display device |
| CN110265460A (en) * | 2019-06-27 | 2019-09-20 | 京东方科技集团股份有限公司 | Oled display substrate and preparation method thereof, display device |
| CN110718572A (en) * | 2019-10-17 | 2020-01-21 | 京东方科技集团股份有限公司 | Organic electroluminescent display substrate, preparation method thereof and display device |
| WO2020118759A1 (en) * | 2018-12-10 | 2020-06-18 | 武汉华星光电半导体显示技术有限公司 | Array substrate |
| CN111682031A (en) * | 2020-06-23 | 2020-09-18 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
| WO2020206714A1 (en) * | 2019-04-09 | 2020-10-15 | 深圳市华星光电技术有限公司 | Circuit structure of display panel and manufacturing method therefor, and display device |
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Application publication date: 20180918 |