CN110112176A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN110112176A CN110112176A CN201910202910.0A CN201910202910A CN110112176A CN 110112176 A CN110112176 A CN 110112176A CN 201910202910 A CN201910202910 A CN 201910202910A CN 110112176 A CN110112176 A CN 110112176A
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- 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
- H10K50/805—Electrodes
- H10K50/81—Anodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/123—Connection of the pixel electrodes to the thin film transistors [TFT]
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
This application discloses a kind of display panel and display device, which includes: non-rectangle viewing area and non-display area, and non-rectangle viewing area includes that central viewing area and edge viewing area, edge viewing area are set between central viewing area and non-display area；Wherein, edge viewing area is provided with the first pixel unit group and the second pixel unit group；First pixel unit group is located between non-display area and the second pixel unit group, the corresponding sub-pixel common anode in sub-pixel and the second pixel unit group in first pixel unit group, shared anode connects the first driving circuit, and the first driving circuit drives the corresponding sub-pixel in sub-pixel and the second pixel unit group in the first pixel unit group simultaneously.By the above-mentioned means, the application can improve the sawtooth sense that edge is shown.
Description
Technical field
This application involves field of display technology, more particularly to a kind of display panel and display device.
Background technique
For the special-shaped display panel of non-rectangular configuration, boundary can be arc boundary or bevel edge circle, in this way
One, boundary will appear the dot structure of step arrangement, it sometimes appear that step distance difference is excessive, then in display,
Apparent sawtooth will occur in the boundary of display panel, display information is discontinuous, and display effect is poor.
In the prior art, by covering pixel openings, so that step distance difference is reduced, to weaken sawtooth sense.But
Covering pixel openings must just cover corresponding pixel-driving circuit, but in narrow arc-shaped frame, when covering pixel-driving circuit,
It can interfere with other circuit units, such as GIP circuit unit, more pixels can not be covered by being limited by frame, cover pixel
Position also will receive influence.
Summary of the invention
The application can not influence narrow side mainly solving the technical problems that provide a kind of display panel and display device
More pixels are covered in the case where frame.
In order to solve the above technical problems, the technical solution that the application uses is: providing a kind of display panel, comprising:
Non-rectangle viewing area and non-display area, non-rectangle viewing area include central viewing area and edge viewing area, the setting of edge viewing area
Between central viewing area and non-display area；Wherein, edge viewing area is provided with the first pixel unit group and the second pixel unit
Group；First pixel unit group is located between non-display area and the second pixel unit group, the sub-pixel in the first pixel unit group and
Corresponding sub-pixel common anode in second pixel unit group, shared anode connect the first driving circuit, the first driving circuit
The corresponding sub-pixel in the sub-pixel and the second pixel unit group in the first pixel unit group is driven simultaneously.
In order to solve the above technical problems, another technical solution that the application uses is: providing a kind of display device, at least
Including display panel as described above.
The beneficial effect of the application is: being in contrast to the prior art, in embodiments herein, in edge viewing area
The corresponding sub-pixel common anode in the sub-pixel and the second pixel unit group in the first pixel unit group being arranged, shared sun
Pole connects the first driving circuit, and the first driving circuit drives sub-pixel and the second pixel unit in the first pixel unit group simultaneously
Corresponding sub-pixel in group, allows the driving electricity for sharing other sub-pixels in special-shaped edge viewing area compared with the sub-pixel at edge
Road to can reduce the quantity of driving circuit when the edge close to non-display area covers pixel, while can cover more
More pixel openings, and then realize the range difference for reducing pixel openings at edge step, improve the sawtooth sense that edge is shown.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of display panel first embodiment of the application；
Fig. 2 is the partial structure diagram of existing display panel；
Fig. 3 is the cross section structure schematic diagram of two pixel units of common anode in Fig. 1；
Fig. 4 is the arrangement mode schematic diagram of the partial pixel unit of edge viewing area in Fig. 1；
Fig. 5 is a kind of structural schematic diagram of display panel second embodiment of the application；
Fig. 6 is the pixel-driving circuit schematic diagram of 2T1C；
Fig. 7 is a kind of structural schematic diagram of display panel 3rd embodiment of the application；
Fig. 8 is a kind of structural schematic diagram of one embodiment of display device of the application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiment of the application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
As shown in Figure 1, display panel 10 includes: non-rectangle viewing area in a kind of display panel first embodiment of the application
101 and non-display area 102, which can be arc boundary or bevel edge circle etc..
Non-rectangle viewing area 101 includes central viewing area 1011 and edge viewing area 1012.Edge viewing area 1012 is arranged
It is as shown in figure 1 edge viewing area 1012 on the left of dotted line MM ' and non-display between central viewing area 1011 and non-display area 102
Area 102, right side are central viewing area 1011.The usually stepped arrangement of the pixel unit of edge viewing area 1012, such as Fig. 2 institute
The stepped area 202 shown.
In existing display panel, if the distance difference of the stepped area 202 in X-direction and/or Y-direction between two-stage step
(the range difference H2 of adjacent two-stage step in such as Fig. 2) is larger, is easy to cause the display panel edge to generate sawtooth display sense, influences
Display effect.
In the present embodiment, which is provided with the first pixel unit group 1012a and the second pixel unit group
1012b, the first pixel unit group 1012a are located between non-display area 102 and the second pixel unit group 1012b, the first pixel
The corresponding sub-pixel common anode 30 in sub-pixel and the second pixel unit group 1012b in unit group 1012a.Shared anode
30 are an integral molding structure, and one end is located at the sub-pixel in the first pixel unit group 1012a, and the other end is located at the second pixel unit
Corresponding sub-pixel in group 1012b, and the first driving circuit (not shown) is connected, which drives the first picture simultaneously
The corresponding sub-pixel in sub-pixel and the second pixel unit group 1012b in plain unit group 1012a, so that edge viewing area 1012
In more edge sub-pixel (i.e. close to the sub-pixel of the first pixel unit 1012a group of non-display area 102) can with it is close
The corresponding sub-pixel common drive circuit of second pixel unit group 1012b of central viewing area 1011, thus close to non-display
The edge in area 102 can reduce the quantity of driving circuit and conform to narrow rim space especially at curved edge,
More pixel openings can be covered simultaneously, and then realize the range difference for reducing pixel openings at edge step, are improved edge and are shown
Sawtooth sense.
Specifically, it is different from display panel as shown in Figure 2, display panel 10 shown in FIG. 1 is in edge viewing area 1012
In be provided with the first pixel unit group 1012a and the second pixel unit group 1012b, wherein the second pixel unit group 1012b distance
Central viewing area 1011 recently, forms step arrangement architecture in edge viewing area 1012.First pixel unit group 1012a
For the pixel unit group (only showing anode in Fig. 1) of covering, at least partly sub-pixel in the first pixel unit group 1012a is set
It is placed in the interior recess of the step arrangement architecture, i.e., is extended as shown in Figure 1 in X direction and/or in Y-direction towards non-display area 102
Region be arranged only shown in the first pixel unit group 1012a, Fig. 1 along Y-direction setting the first pixel unit group 1012a,
It can certainly be arranged in X direction.Due to having covered the first pixel in the interior recess of 1012 step arrangement architecture of edge viewing area
Unit group 1012a, advantageously reduces the range difference of adjacent two-stage step, and the range difference H1 of adjacent two-stage step is less than as shown in figure 1
The range difference H2 of existing display panel in Fig. 2, then in display, the edge that can weaken edge viewing area 1012 shows sawtooth
Sense.
As shown in Figure 1, sub-pixel and the second pixel unit group in pixel unit the first pixel unit group 1012a of covering
Corresponding sub-pixel common anode 30 in 1012b.As shown in figure 3, each shared anode 30 connects first driving circuit
301, so that first driving circuit 301 drives the son in the first pixel unit group 1012a simultaneously when driving sub-pixel display
Corresponding sub-pixel in pixel and the second pixel unit group 1012b.At this point, since anode 30 is shared, first pixel unit
Corresponding sub-pixel is to be connected in series in sub-pixel and the second pixel unit group 1012b in group 1012a, the first pixel unit group
Sub-pixel in 1012a can be divided to the corresponding sub-pixel in the second pixel unit group 1012b, so that the first pixel unit
The display brightness decline of sub-pixel in group 1012a and the corresponding sub-pixel in the second pixel unit group 1012b, can be further
The edge for reducing edge viewing area 1012 shows sawtooth sense.
Preferably, the sub-pixel and the second pixel unit group in the first pixel unit group 1012a of same anode 30 are shared
Corresponding sub-pixel in 1012b is the sub-pixel unit of same color, such as is all red sub-pixel unit R.In this way, driving
When sub-pixel unit shines, the sub-pixel list of few two same colors can be directly driven to using one sub-pixel unit of driving
Member, the light emission luminance of each sub-pixel unit are the half of single sub-pixel unit brightness in former display panel, thus edge picture
The brightness of element can reduce, and be conducive to the display sawtooth sense for lowering edge pixel.As shown in Figure 1, the second pixel unit group 1012b is
The nearest pixel unit group in the central viewing area 1011 of distance, with immediate first pixel list in the second pixel unit group 1012b
A sub-pixel in tuple 1012a can be to a corresponding sub-pixel in the second pixel unit group 1012b by the same drive
Circuit (that is, by same anode) is moved to drive.
In addition, sub-pixel in the second pixel unit group 1012b and adjacent and different color other sub-pixel structure
At a pixel of display panel 10.For example, when the sub-pixel in the second pixel unit group 1012b is red sub-pixel, it can
To together constitute with a complete pixel of display panel 10, the adjacent sub- picture with adjacent green sub-pixels and blue subpixels
Element can be the sub-pixel in the first pixel unit group 1012a, other the sub- pictures being also possible in the second pixel unit group 1012b
Element improves display effect so as to reduce color offset phenomenon when edge viewing area 1012 is shown.Such as in Fig. 4, along Y-direction
Green (G) the sub-pixel unit 1012a composition display panel 10 of adjacent red (R), indigo plant (B) sub-pixel unit 1012b and adjacent column
A complete pixel (as shown in the virtual coil in Fig. 4), can keep in this way edge viewing area 1012 pixel arrangement and center
Viewing area 1011 is consistent, reduces color offset phenomenon when edge viewing area 1012 is shown, improves display effect.
When designing the shared anode 30, it is only necessary to will be near the second pixel unit 1012b's of non-display area 102
Anode 30 does extending design towards non-display area 102, and continues to prepare pixel openings on anode 30 after extension, thus should
Shared 30 area of anode is typically larger than 40 area of anode of each pixel unit 1011a of central viewing area 1011.With separate
After the anode for preparing the sub-pixel in the first pixel unit group 1012a and the corresponding sub-pixel in the second pixel unit group 1012b
Two anodes are attached again and are compared, the above-mentioned while method for preparing anode so that shared 30 area of anode be greater than it is normal
Anode 40, but preparation method is simple, does not need to increase the processes such as exposure mask, will not excessively increase cost, realizes relatively simple, has
Conducive to procedure production.
In other embodiments, the space by edge viewing area 1012 is limited, in the second pixel unit group 1012b
The pixel openings of sub-pixel are greater than the pixel openings of the sub-pixel in the first pixel unit group 1012a.For example, the second pixel list
The pixel openings of sub-pixel in tuple 1012b can be identical as the openings of sizes of sub-pixel unit of central viewing area 1011,
And the space of edge viewing area 1012 is limited, the pixel openings of the sub-pixel of the first pixel unit group 1012a of covering can be small
In the pixel openings of the sub-pixel of the second pixel unit group 1012b, so as to cover more pictures in edge viewing area 1012
Element further decreases edge and shows sawtooth sense, improves display effect.
In other embodiments, it in order to which the sawtooth display for further weakening edge is felt, can also reduce in edge viewing area
The driving current of pixel, and then reduce the brightness of pixel in edge viewing area.
Specifically as shown in figure 5, in a kind of display panel second embodiment of the application, display panel 50 includes non-rectangle display
Area 501 and non-display area 502, non-rectangle 501 boundary of viewing area can be arc boundary or bevel edge circle etc..Non-rectangle viewing area
501 include central viewing area 5011 and edge viewing area 5012.Wherein, the structure of the edge viewing area 5012 can refer in Fig. 1
The edge viewing area 1012 of display panel 10, details are not described herein again.
Central viewing area 5011 includes multiple third pixel unit 5011a, the anode connection the of third pixel unit 5011a
Two driving circuits 503.In edge viewing area 5,012 first driving circuit 504 of pixel unit by the first power supply cabling 505 with
The connection of power supply (not shown), the second driving circuit 503 are connected to power supply by second source cabling 506；Wherein, the first power supply is walked
The resistance value of line 505 is greater than the resistance value of second source cabling 506.First power supply of the pixel unit of edge viewing area 5012 as a result,
505 resistance of cabling increases, and the driving current of pixel reduces, so that pixel light emission brightness reduces, reaches reduction edge and shows sawtooth
The effect of sense.
Specifically, it is illustrated with 2T1C pixel circuit well known in the art.As shown in fig. 6, shining in the pixel circuit
The source electrode of the switch transistor T FT2 of the anode connection driving circuit of diode OLED, the drain electrode of switch transistor T FT2 pass through power supply cabling
VDD cabling connects power vd D, the source electrode of the grid connection switch pipe TFT1 of switch transistor T FT2, and the drain electrode of switch transistor T FT1 passes through
Data line data cabling connects data source, and the grid of switch transistor T FT1 connects scanning signal source, electricity by scan line scan cabling
Appearance Cs is storage capacitance.
When the VDD trace resistances of the pixel circuit increase, VDD cabling pressure drop becomes larger, the electricity of the drain electrode of switch transistor T FT2
Pressure drop is low, then when switch transistor T FT2 is connected, the voltage of light emitting diode OLED anode is reduced, and flows through light emitting diode OLED
Electric current can reduce, the brightness of OLED can decline.Therefore, when edge viewing area 5012 pixel unit the first power supply cabling
When 505 resistance are greater than the resistance of the second source cabling 506 of central viewing area 5011, the driving current of edge pixel is reduced, hair
Brightness reduces, and inventor's discovery can achieve the effect that reduction edge shows sawtooth sense in this way.
Preferably, the first power supply cabling 505 and second source cabling 506 are being designed, it can be directly by the first power supply cabling
505 are changed to the metal wire of high resistivity, and second source cabling 506 is still using conventional low-resistivity cabling, Ke Yida
Meet screen intensity uniformity requirements simultaneously to the VDD pressure drop for guaranteeing central viewing area 5011, the VDD pressure of edge viewing area 5012
Drop increases, and the driving current of the pixel circuit of edge viewing area 5012 reduces, edge pixel light emission luminance, and it is aobvious to reach reduction edge
Show the effect of sawtooth sense.
Specifically, as shown in figure 5, to avoid short circuit, the first power supply cabling 505 and second source cabling 506 use
The metal of different resistivity, and different layer is arranged, which is connected by thread-changing hole 507 and the first driving circuit 504
It connects.Preferably, the aperture in the thread-changing hole 507 is 2.5-3 μm, this pore diameter range meets exposure and requires, and will not influence display effect
Fruit.
In other embodiments, the first power supply cabling 505 of the edge viewing area 5012 can still use conventional cabling,
And the second source cabling 506 of the center viewing area 5011 is using two layers of metal routing in parallel.In production, it is only necessary to same
When complete one layer of metal routing of the first power supply cabling 505 and second source cabling 506 after, continue shape in central viewing area 5011
At one layer of metal routing, it can realize the second source cabling 506 of two layers of metal routing in parallel.The method is not needed to use and be changed
String holes does not need to punch, therefore will not influence display effect, and technique is relatively simple.The method is by reducing central viewing area
5011 VDD pressure drop, and the VDD cabling of edge viewing area 5012 is not processed, then the VDD pressure drop of edge viewing area 5012 is greater than
The driving current of central viewing area 5011, edge pixel reduces, and brightness reduces, and weakens the effect that edge shows sawtooth sense to reach
Fruit.
In other embodiments, the driving of pixel in edge viewing area can also be reduced by changing the resistance of data cabling
Electric current.
Specifically as shown in fig. 7, in a kind of display panel 3rd embodiment of the application, in the structure and Fig. 5 of display panel 70
The structure of display panel 50 is similar, and something in common repeats no more, the difference is that: the first driving circuit 504 passes through the first number
Data source (not shown) is connected according to cabling 508, the second driving circuit 503 connects the data source by the second data cabling 509,
In the first data cabling 508 resistance value less than the second data cabling 509 resistance value.
It is equally illustrated by taking circuit shown in fig. 6 as an example, if the data cabling resistance value of the pixel circuit reduces, works as switch
When pipe TFT1 is connected, the voltage of switch transistor T FT2 grid be will increase, then when switch transistor T FT2 is connected, light emitting diode OLED
The voltage of anode can reduce, then the electric current for flowing through light emitting diode OLED can be reduced, and the brightness of OLED can decline.Therefore, when
The resistance value of one data cabling 508 less than the second data cabling 509 resistance value when, the pixel light emission brightness of the edge viewing area 5012
It can decline, to achieve the effect that weakening edge shows sawtooth sense.
Preferably, as shown in fig. 7, first data are walked when designing the first data cabling 508 and the second data cabling 509
Line 508 can be using two layers of metal routing in parallel.The manufacturing method of the first data cabling 508 can be with reference to using two layers of gold medal
The second source cabling 506 for belonging to cabling, is not repeated herein.Similar, the method can not need not needing using thread-changing hole
Punching, therefore will not influence display effect, technique is relatively simple.
Certainly, in other embodiments, which can also use the metal routing of high resistivity,
Manufacturing method can refer to the first power supply cabling 505 using high resistivity metal routing, be not repeated herein.
As shown in figure 8, display device 80 includes at least display panel 801 in one embodiment of the application display device, this is aobvious
Show that panel 801 can be not repeated herein with reference to the application display panel first to third any embodiment.The display device 80
It is shared by the first pixel unit being arranged in 801 edge viewing area of display panel and the second pixel unit common anode
Anode connects the first driving circuit, and the first driving circuit drives the first pixel unit and the second pixel unit to shine simultaneously, so that
The driving circuit of other pixel units can be shared in special-shaped edge viewing area compared with the pixel unit at edge, thus in covering pixel
When can reduce the locational space of driving circuit occupancy, more pixel openings can be covered, and then realize and reduce at edge step
The range difference of pixel openings improves the sawtooth sense that edge is shown.
In other unshowned embodiments, which can also include driving chip, power supply, touch panel etc.
Other structures.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of display panel characterized by comprising
Non-rectangle viewing area and non-display area, the non-rectangle viewing area include central viewing area and edge viewing area, the side
Edge viewing area is set between the central viewing area and the non-display area；
Wherein, the edge viewing area is provided with the first pixel unit group and the second pixel unit group；First pixel unit
Group is between the non-display area and the second pixel unit group, sub-pixel in the first pixel unit group and described
Corresponding sub-pixel common anode in second pixel unit group, the shared anode the first driving circuit of connection, described first
Driving circuit drives the corresponding sub- picture in sub-pixel and the second pixel unit group in the first pixel unit group simultaneously
Element.
2. display panel according to claim 1, which is characterized in that the second pixel unit group is shown at the edge
Area forms step arrangement architecture, and at least partly sub-pixel in the first pixel unit group is located at the step arrangement architecture
Interior recess.
3. display panel according to claim 1, which is characterized in that share the first pixel unit group of same anode
Sub-pixel and the second pixel unit group sub-pixel be same color.
4. display panel according to claim 1, which is characterized in that a certain color in the second pixel unit group
Nearest first pixel unit of sub-pixel in homochromy sub-pixel group pixel group connect first driving circuit,
In, the sub-pixel in the second pixel unit group constitutes the display panel from adjacent and different color other sub-pixel
A pixel.
5. display panel according to claim 1, which is characterized in that the picture of the sub-pixel in the second pixel unit group
Element opening is greater than the pixel openings of the sub-pixel in the first pixel unit group,
Preferably, the shared annode area is greater than the annode area of each sub-pixel of the central viewing area.
6. display panel according to claim 1, which is characterized in that the center viewing area includes multiple third pixel lists
The anode of member, the third pixel unit connects the second driving circuit；
First driving circuit is connected to power supply by the first power supply cabling, and second driving circuit is walked by second source
Line is connect with the power supply；Wherein the resistance value of the first power supply cabling is greater than the resistance value of the second source cabling.
7. display panel according to claim 6, which is characterized in that the second source cabling includes two layers of gold in parallel
Belong to cabling.
8. display panel according to claim 1, which is characterized in that the center viewing area includes multiple third pixel lists
The anode of member, the third pixel unit connects the second driving circuit；
First driving circuit connects data source by the first data cabling, and second driving circuit is walked by the second data
Line connects the data source；Wherein the resistance value of the first data cabling is less than the resistance value of the second data cabling.
9. display panel according to claim 8, which is characterized in that the first data cabling includes two layers of gold in parallel
Belong to cabling.
10. a kind of display device, which is characterized in that include at least such as the described in any item display panels of claim 1-9.
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| CN201910202910.0A CN110112176A (en) | 2019-03-18 | 2019-03-18 | A kind of display panel and display device |
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| CN201910202910.0A CN110112176A (en) | 2019-03-18 | 2019-03-18 | A kind of display panel and display device |
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Application publication date: 20190809 |