CN107644621A - Display panel - Google Patents
Display panel Download PDFInfo
- Publication number
- CN107644621A CN107644621A CN201711123636.5A CN201711123636A CN107644621A CN 107644621 A CN107644621 A CN 107644621A CN 201711123636 A CN201711123636 A CN 201711123636A CN 107644621 A CN107644621 A CN 107644621A
- Authority
- CN
- China
- Prior art keywords
- lead
- display panel
- reference voltage
- providing unit
- voltage line
- 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.)
- Granted
Links
- 230000005611 electricity Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 6
- 241000208340 Araliaceae Species 0.000 claims description 4
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 4
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 4
- 235000008434 ginseng Nutrition 0.000 claims description 4
- 229920005591 polysilicon Polymers 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000002210 silicon-based material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000002305 electric material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 5
- 208000032005 Spinocerebellar ataxia with axonal neuropathy type 2 Diseases 0.000 description 3
- 208000033361 autosomal recessive with axonal neuropathy 2 spinocerebellar ataxia Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009795 derivation Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display panel, which comprises a display area and a frame area, and also comprises: a plurality of reference voltage lines positioned in the display area; the first lead and the second lead are electrically connected with the voltage providing unit, and the first lead and the second lead are respectively electrically connected with two ends of the reference voltage line, so that the voltage applied to the plurality of reference voltage lines is reduced along with the increase of the distance between the reference voltage line and the voltage providing unit. The display panel provided by the invention ensures that the voltages at two ends of the light-emitting diodes in different areas are kept stable, namely, the voltage at the first end of the light-emitting diode does not change along with the increase of the distance between the light-emitting diode and the voltage providing unit, the uniformity of the light-emitting brightness of the light-emitting diode in the display area is improved, and the display effect of the display panel is further improved.
Description
Technical field
The present invention relates to display technology field, more specifically to a kind of display panel.
Background technology
In existing a variety of display devices, organic electroluminescence display panel is because of its low-power consumption, wide viewing angle, high brightness and low weight
The advantages that, obtain more and more extensive concern and application.
But as the size of organic light emission (OLED) display panel is increasing, the appearance display brightness of display panel
The problem of uneven, the region nearer apart from driving chip being shown as, brightness is higher, and as the distance with driving chip is got over
Greatly, display brightness gradually reduces.
The content of the invention
In view of this, the invention provides a kind of display panel, to a certain extent, display panel viewing area is alleviated
The situation of the brightness disproportionation occurred with the change of distance between driving chip, improve the display effect of display panel.
To achieve the above object, the present invention provides following technical scheme：
A kind of display panel, the display panel include viewing area and frame region, and the display panel also includes：
A plurality of reference voltage line positioned at the viewing area；
Positioned at the first lead, the second lead and voltage providing unit of the frame region, first lead and
Two leads electrically connect with the voltage providing unit, first lead and the second lead respectively with the reference voltage line two
End electrical connection, so that the voltage applied on a plurality of reference voltage line is with the reference voltage line and the voltage providing unit
Distance increase and reduce.
Optionally, a plurality of reference voltage line includes a plurality of the first of distribution parallel with the data wire of the display panel
Reference voltage line, wherein,
The first end of each first reference voltage line electrically connects with first lead, each first reference voltage line
The second end electrically connected with second lead.
Optionally, first lead is located at the frame region close to the side of the voltage providing unit, and described
Two leads are located at side of the frame region away from the voltage providing unit, wherein, the current potential of first lead is higher than
The current potential of second lead.
Optionally, a plurality of reference voltage line includes a plurality of the second of distribution parallel with the scan line of the display panel
Reference voltage line, first lead are located at the first side of the frame region, and second lead is located at the rim area
The second side in domain, the voltage providing unit are located at the four side of the frame region, the first side and described the
Four side is adjacent, and the second side is relative with the first side；
The display panel also includes the 3rd lead positioned at the 3rd side of the frame region；
First lead and the second lead are connected close to the first end of the four side with the voltage providing unit,
First lead and the second lead are connected close to the second end of the 3rd side with the 3rd lead, first lead
It is higher than the current potential of the 3rd lead with the current potential of the first end of the second lead；
The both ends of second reference voltage line electrically connect with first lead and second lead respectively.
Optionally, the 3rd lead electrically connects with the voltage providing unit.
Optionally, a plurality of reference voltage line includes a plurality of first reference voltage line and a plurality of second reference voltage line,
First reference voltage line distribution parallel with the data wire of the display panel, second reference voltage line and the display
The parallel distribution of scan line of panel；
The voltage providing unit is located at the four side of the frame region, and first lead is located at the rim area
The four side in domain, second lead are located at threeth side of the frame region away from the voltage providing unit, wherein,
The current potential of first lead is higher than the current potential of second lead；
First reference voltage line electrically connects close to the first end of the voltage providing unit with first lead, institute
Second end of first reference voltage line away from the voltage providing unit is stated to electrically connect with second lead.
Optionally, the display panel also includes the 4th lead positioned at the first side of the frame region, and/or,
The 5th lead positioned at the second side of the frame region, wherein, the first side is adjacent with the four side, described
Second side is relative with the first side；
The first end and the voltage providing unit or institute of 4th lead and the 5th lead close to the four side
State the first lead to be connected, the 4th lead and the 5th lead second end and the second lead phase away from the four side
Even；
The both ends of second reference voltage line electrically connect with the 4th lead and the 5th lead respectively.
Optionally, the voltage providing unit is driving chip.
Optionally, bottom side or top side of the four side for the display panel.
Optionally, for same display panel, the voltage difference between first lead and second lead is solid for one
Definite value.
Optionally, for same display panel, positioned at the first end and the electricity at the second end of the lead of the first side
Pressure difference is a fixed value.
Optionally, the material of the reference voltage line is high resistance conductive material.
Optionally, the material of the reference voltage line is metal Mo, or highly doped low-temperature polysilicon silicon materials, or conductive
Oxide semiconductor material.
The invention also discloses a kind of display panel, the display panel includes viewing area and frame region, described aobvious
Show that panel also includes：
A plurality of reference voltage line positioned at the viewing area, the number of a plurality of reference voltage line and the display panel
According to the parallel distribution of line；
Positioned at the voltage providing unit of the frame region four side, and positioned at the side of frame region the 3rd
First lead, the 3rd side are relative with the four side；
Wherein, the reference voltage line close to the voltage providing unit first end directly with the voltage providing unit
Electrical connection, second end of the reference voltage line away from the voltage providing unit electrically connect with first lead, the ginseng
The current potential for examining the first end of pressure-wire is higher than the current potential at second end.
Compared with prior art, technical scheme provided by the present invention has advantages below：
Display panel provided by the present invention, because the supply voltage so as to light emitting diode is with light emitting diode and voltage
The increase of the distance of unit is provided and reduced, therefore the first lead and the second lead by being electrically connected with voltage providing unit,
Respectively the both ends of reference voltage line apply voltage, make the voltage that applies on a plurality of reference voltage line with the reference voltage line with
The increase of the distance of the voltage providing unit and reduce, that is, ensure that different zones light emitting diode both ends voltage keep
Stable, i.e., the voltage of light emitting diode first end does not become with the increase of light emitting diode and the distance of voltage providing unit
Change, so as to improve the homogeneity of the lumination of light emitting diode brightness of viewing area, improve the display effect of display panel.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the electrical block diagram of existing one pixel region of organic light-emitting display device including 3T1C；
Fig. 2 is adjacent gate line Scan1 and Scan2 voltage timing diagram in Fig. 1 display panel；
Fig. 3 is a kind of overlooking the structure diagram for display panel that one embodiment of the invention provides；
Fig. 4 is a kind of overlooking the structure diagram for display panel that another embodiment of the present invention provides；
Fig. 5 is a kind of overlooking the structure diagram for display panel that yet another embodiment of the invention provides；
Fig. 6 is a kind of overlooking the structure diagram for display panel that another embodiment of the present invention provides；
Fig. 7 is a kind of overlooking the structure diagram for display panel that yet another embodiment of the invention provides；
Fig. 8 is a kind of overlooking the structure diagram for display panel that another embodiment of the present invention provides；
Fig. 9 is a kind of schematic diagram of display device provided in an embodiment of the present invention.
Embodiment
As described in background, there is with the increase with driving chip distance asking for reducing in the brightness of display panel
Topic, inventor have found the reason for this problem occur including in terms of two, one is due to the electricity of the first supply voltage Vdd and second
Source voltage Vee etc. provides by driving chip, and is used for the electricity for transmitting the first supply voltage Vdd positioned at light emitting diode D one end
Press transmission line PVDD resistance excessive, and then cause the current loss in voltage transmitting procedure, so as to cause to get over apart from driving chip
Remote light emitting diode, its display brightness are lower；Second, it is different by the temperature in different pixels region, so as to cause the brightness of pixel
Display is uneven.
No matter driven for low-temperature polysilicon film transistor (Low Temperature Poly-silicon, abbreviation LTPS)
Dynamic OLED display panel, or the OLED display panel of metal oxide thin-film transistor (Oxide-TFT) driving, are present
It is this to show the problem of uneven, and it is more serious the problem of the OLED display panel of Oxide-TFT drivings.
Specifically, as depicted in figs. 1 and 2, Fig. 1 is in the prior art including 3T1C (i.e. 3 transistors and 1 electric capacity)
The electrical block diagram of one pixel region of organic light-emitting display device, Fig. 2 are adjacent gate line Scan1 and Scan2
Voltage timing diagram.From Fig. 1 and Fig. 2 as can be seen that when first grid polar curve Scan1 high potentials, the first transistor M1 is opened, number
First node N1 is transferred to according to the voltage Vdata of line, now second transistor M2 is opened, and supply voltage Vdd is through second transistor
M2 is transferred to section point N2, and when second gate line Scan2 high potentials, third transistor M3 is opened, reference voltage Vref warp
Third transistor M3 is transferred to section point N2, now, is determined by the electric current at light emitting diode D both ends by Vdd-Vref, i.e.,
The voltage at light emitting diode D section point N2 ends is Vdd-Vref, and the voltage of the light emitting diode D other end is by driving core
The supply voltage Vee that piece provides.
Based on principles above, inventor has found, by controlling the magnitude of voltage of reference voltage Vref, can control flow through it is luminous
The electric current at diode D both ends, and then the display effect of light emitting diode can be improved.
,, should to overcome above mentioned problem existing for prior art the embodiments of the invention provide a kind of display panel based on this
Display panel includes viewing area and frame region, and the display panel also includes：
A plurality of reference voltage line positioned at the viewing area, reference voltage line provide reference voltage for viewing area
Vref；
Positioned at the first lead, the second lead and voltage providing unit of the frame region, first lead and
Two leads electrically connect with the voltage providing unit, first lead and the second lead respectively with the reference voltage line two
End electrical connection, so that the voltage applied on a plurality of reference voltage line is with the reference voltage line and the voltage providing unit
Distance increase and reduce.
Voltage providing unit in the embodiment of the present invention can be the circuit for providing voltage being separately provided, and can also be integrated in
On the driving chip IC or FPC of display panel, in order to reduce the complexity of frame region circuit, the present embodiment preferably carries voltage
Power supply road is integrated on driving chip IC or FPC.
Furthermore, it is desirable to explanation, for same display panel, the reference nearest apart from voltage providing unit electricity
First reference voltage V1 of line ball position, the second reference voltage with the reference voltage line position farthest apart from voltage providing unit
Voltage difference △ V between V2 are a fixed positive, i.e. △ V=V1-V2 are fixed value.Voltage difference △ V can be in display surface
Before plate dispatches from the factory, debugged according to the display effect of display panel, to determine to be directed to voltage difference △ corresponding to each display panel
V, voltage difference △ V during the use in later stage, then will not be adjusted and be changed by driving chip again after being determined before dispatching from the factory
Become.For display panel different in same production batch, voltage difference △ V can be with identical, can also be different.
For same display panel, after voltage difference △ V are determined, with voltage providing unit apart near OLED pixel unit
Electric current be a (Vdd-V1), apart from the electric current of remote OLED pixel unit be a (Vdd-V2)=a [Vdd- with voltage providing unit
(V1- △ V)]=a (Vdd-V1+ △ V), wherein a be the related constant such as resistance value to drive circuit, OLED pixel unit,
For same display panel, a is a fixed value.It follows that the presence due to voltage difference △ V so that with voltage providing unit
Electric current apart from remote OLED pixel unit can offset the first supply voltage Vdd in voltage compared to increasing in the prior art
The loss of voltage on transmission line, so as to compared to prior art, improve to a certain extent remote with voltage providing unit distance
OLED pixel unit brightness, improve the display effect of display panel.
In addition, it is necessary to illustrate, the material of the reference voltage line in the present embodiment can be high resistance conductive material.Tool
Body, the material of the reference voltage line can be metal Mo, or highly doped low-temperature polysilicon silicon materials (Low
Temperature Poly-silicon, abbreviation LTPS), or conductive oxide semiconductor material.
Using the equal sheet resistance of reference voltage line as 0.7 Ω/, the width of reference voltage line is 3 microns, length be 200mm (i.e.
The length of display panel) exemplified by, △ V are 0.5V, and the bar number n of reference voltage line is 2000 in display panel, then all ginsengs
Examining caused extra power consumption W on pressure-wire is：
W=n* △ V2/ R=2000*0.25/ (0.7*200000/3)=0.01w
As can be seen here, after the scheme of the embodiment of the present invention is implemented, for display panel, relative to prior art, we
The increased extra power consumption of case is that display panel can be born completely, i.e., the scheme of the embodiment of the present invention is to display panel function
Influence is entirely acceptable.Also, in other embodiments, can also be by being made from more high-resistance material with reference to electricity
Line ball, so as to further reduce the extra power consumption of reference voltage line.
In addition, the scheme of the embodiment of the present invention, which can be applied to reference voltage current potential, can influence the benefit of OLED pixel unit brightness
Repay in circuit, including but not limited to using the display panel of the circuit structure shown in Fig. 1.
Display panel provided by the present invention, because the supply voltage Vdd of light emitting diode is with light emitting diode and voltage
The increase of the distance of unit is provided and reduced, thus in the present embodiment by the first lead for being electrically connected with voltage providing unit and
The both ends of second lead, respectively reference voltage line apply voltage, and the voltage for making to apply on a plurality of reference voltage line is with the ginseng
Examine the increase of pressure-wire and the distance of the voltage providing unit and reduce, that is, ensure that the light emitting diode first of different zones
The voltage at (the section point N2 ends i.e. shown in Fig. 1) at end keeps stable, i.e. the end of light emitting diode second (i.e. second source electricity
Press Vee ends) keep stable on the basis of, the voltage at light emitting diode both ends not with light emitting diode and voltage providing unit away from
From increase and change, solve because the resistance on first voltage transmission line PVDD with voltage providing unit distance increase
And caused by increasing the problem of the light emitting diode spread of voltage of viewing area, so as to improve viewing area light emitting diode
The homogeneity of luminosity, improve the display effect of display panel.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, for different display panels, in the embodiment of the present invention
Technical scheme is clearly and completely described, it is clear that and described embodiment is only part of the embodiment of the present invention, without
It is whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not before creative work is made
The every other embodiment obtained is put, belongs to the scope of protection of the invention.
The embodiments of the invention provide a kind of display panel, its overlooking the structure diagram is as shown in figure 3, the display panel 10
Including viewing area 11 and frame region 12, the display panel also includes：A plurality of reference voltage positioned at the viewing area
Line, and the first lead 121, the second lead 122 and voltage providing unit 120 positioned at the frame region 12.
As shown in figure 3, a plurality of reference voltage line in the present embodiment includes parallel with the data wire of the display panel point
A plurality of first reference voltage line 111 of cloth, wherein, data wire direction is Y-direction, and scan-line direction is X-direction, and every first is joined
Examine pressure-wire 111 to electrically connect with the pixel cell 110 of its column, for providing reference voltage for pixel cell 110.This reality
Apply in example in order that the voltage applied on a plurality of first reference voltage line 111 carries with the first reference voltage line 111 with the voltage
Reduce for the increase of the distance of unit 120, different voltage need to be applied at the both ends of the first reference voltage line 111, and make first
The voltage of the near-end nearer apart from voltage providing unit 120 on reference voltage line 111, higher than apart from voltage providing unit 120 compared with
The voltage of remote distal end.
As shown in figure 3, the first lead 121 is located at the frame region 12 close to the voltage providing unit in the present embodiment
120 side, second lead 122 are located at side of the frame region 12 away from the voltage providing unit 120, its
In, the current potential V1 of the first lead 121 is higher than the current potential V2 of the second lead 122.
Also, the first lead 121 and the second lead 122 both ends with the first reference voltage line 111 respectively in the present embodiment
Electrical connection, specifically, the first end (near-end i.e. nearer apart from voltage providing unit 120) of each first reference voltage line 111 and
First lead 121 electrically connects, and the second end of each first reference voltage line 111 is (apart from voltage providing unit 120 farther out
Distal end) electrically connected with second lead 122.Due to V1>V2, therefore, the current potential of the first end of the first reference voltage line 111
Higher than the current potential at the second end of the first reference voltage line 111.
The voltage in the first lead 121 and the second lead 122 in the present embodiment can be carried by voltage providing unit 120 respectively
For i.e. the first lead 121 and the second lead 122 electrically connect with voltage providing unit 120.As shown in figure 3, the first lead 121 can
Together with voltage providing unit 120, positioned at the same side of frame region 12, i.e. the one or both ends of the first lead 121 can be with
Voltage providing unit 120 is joined directly together.Second lead 122 is located at the side relative with voltage providing unit 120, therefore second draws
The one or both ends of line 122 need to pass through the 3rd lead 123 and voltage providing unit positioned at two other side of frame region 12
120 are connected.
With the increase of size of display panels, in order that the voltage on the both ends of the first lead 121 keeps stable and consistent, this
The both ends of preferably the first lead 121 are connected with voltage providing unit 120 in embodiment, as shown in Figure 3.Likewise, in order that
Voltage on the both ends of two lead 122 keeps stable and consistent, and the both ends of preferably the second lead 122 pass through the 3rd in the present embodiment
Lead 123 is connected with voltage providing unit 120.In other embodiments, can also be only by the first lead 121 and the second lead 122
One end be connected with voltage providing unit 120.
The display panel of the first reference voltage line 121 distribution parallel with data wire is directed in the present embodiment, by controlling the
The current potential of one lead 121 and the second lead 122, you can the voltage and voltage difference at control the first reference voltage line 121 both ends, so as to
The voltage on the first reference voltage line 121 is reduced with the increase of the distance away from voltage providing unit 120, and then cause and electricity
Pressure provides electric current of the unit 120 apart from remote OLED pixel unit compared to increasing in the prior art, can offset the first power supply
The losses of voltage of the voltage Vdd on voltage transmission line, so as to compared to prior art, solve because of first voltage transmission line PVDD
On resistance with voltage providing unit distance increase and increase, caused by entering viewing area middle-range ionization voltage provide unit compared with
The problem of electric current reduces in remote light emitting diode, improves the OLED distant with voltage providing unit to a certain extent
The brightness of pixel cell, improve the display effect of display panel.
Another embodiment of the present invention provide display panel overlooking the structure diagram as shown in figure 4, with a upper embodiment
Unlike, a plurality of reference voltage line in the present embodiment includes distribution parallel with the scan line of the display panel, i.e., a plurality of
Reference voltage line includes a plurality of of distribution (distribution i.e. parallel with X-direction in Fig. 4) parallel with the scan line of the display panel
Second reference voltage line 112, every second reference voltage line 112 electrically connect with the pixel cell 110 that it is expert at, for for
Pixel cell 110 provides reference voltage.First lead 121 is located at the first side 21 of the frame region, and described second
Lead 122 is located at the second side 22 of the frame region.Voltage providing unit 120 in the present embodiment is located at the rim area
The four side 24 in domain, the first side 21 is adjacent with the four side 24, the second side 22 and first side
Side 21 is relative.
The first lead 121 and the second lead 122 in the present embodiment are respectively that the both ends of the second reference voltage line 112 provide
Voltage, i.e. in order to ensure the stabilization of the voltage at the both ends of the second reference voltage line of same root 112 so that same root second is with reference to electricity
Voltage on line ball 112 is consistent, the both ends of the second reference voltage line 112 in the present embodiment respectively with first lead 121
Electrically connected with second lead 122.
Further, in order to realize the voltage for making to apply on a plurality of second reference voltage line 112 with the second reference voltage line
112 with the increase of the distance of the voltage providing unit 120 and the purpose that reduces, the first lead 121 and the second lead 122 need to be made
The voltage at both ends reduces with the increase of the distance away from voltage providing unit 120, i.e. the both ends of the first lead 121, and second draws
The voltage at the both ends of line 122 needs difference, and the voltage of the near-end nearer apart from voltage providing unit 120, is provided more than apart from voltage
The voltage of the distal end of unit 120 farther out.
Based on this, the first end and institute of the present embodiment the first lead 121 and the second lead 122 close to the four side 24
State voltage providing unit 120 to be connected, provided by first end of the voltage providing unit 120 for the first lead 121 and the second lead 122
First voltage V1.
In addition, the display panel 10 in the present embodiment also includes the positioned at the 3rd side 23 of the frame region 12 the 3rd
Lead 123.First lead 121 and the second lead 122 are connected close to the second end of the 3rd side 23 with the 3rd lead 123,
Second voltage V2 is provided by second end of the 3rd lead 123 for the first lead 121 and the second lead 122.In the present embodiment, the 3rd
Lead 123 also can be electrically connected directly with the voltage providing unit 120, be that the 3rd lead 123 provides by voltage providing unit 120
Second voltage V2.
The current potential of the first end of the present embodiment the first lead 121 and the second lead 122 draws higher than the first lead 121 and second
The current potential of the current potential at the second end of line 122, the i.e. first end of the first lead 121 and the second lead 122 is higher than the 3rd lead 123
Current potential, that is to say, that V1>V2, so that the voltage applied on a plurality of second reference voltage line 112, with the second reference voltage
The increase of line 112 and the distance of the voltage providing unit 120 and reduce, according to the derivation mode in above example, and then
The brightness of the OLED pixel unit distant with voltage providing unit is improved to a certain extent, improves display panel
Display effect.
The overlooking the structure diagram of display panel disclosed in another embodiment of the present invention is as shown in figure 5, in the present embodiment
A plurality of reference voltage line includes in the characteristics of distribution mode of reference voltage line combines both examples above, i.e. the present embodiment
A plurality of first reference voltage line 111 and a plurality of second reference voltage line 112, the first reference voltage line 111 and the display panel
The 10 parallel distribution of data wire, the distribution parallel with the scan line of the display panel of the second reference voltage line 112.
Based on the distribution situation of the reference voltage line shown in Fig. 5, only for the first reference voltage line 111 in the present embodiment
The reference voltage at both ends is adjusted, and the applying mode of the reference voltage at the both ends of the second reference voltage line 112 (is not shown in figure
Go out) can with it is identical in the prior art.Specifically, in the present embodiment the reference voltage at the both ends of the first reference voltage line 111 application
Mode, it can refer to the embodiment corresponding to Fig. 3.
That is, the voltage providing unit 120 in the present embodiment is located at the four side 24 of frame region 12, the first lead 121
Positioned at the four side 24 of the frame region 12, second lead 122 is located at the frame region 12 away from the voltage
3rd side 23 of unit 120 is provided, wherein, the current potential of first lead 121 is higher than the current potential of second lead 122.
First reference voltage line 111 electrically connects close to the first end of voltage providing unit 120 with the first lead 121, and first
Second end of the reference voltage line 111 away from voltage providing unit 120 electrically connects with second lead 122.
In other embodiments, it can also be adjusted only for the reference voltage at the both ends of the second reference voltage line 112, such as scheme
Shown in 6, and can be with prior art to the applying mode (not shown) of the reference voltage at the both ends of the first reference voltage line 111
In it is identical.Specifically, Fig. 4 can refer to the applying mode of the reference voltage at the both ends of the second reference voltage line 112 in the present embodiment
Corresponding embodiment, is repeated no more here.
The overlooking the structure diagram of display panel disclosed in another embodiment of the present invention is as shown in fig. 7, in Fig. 5 and Fig. 6 institutes
On the basis of the display panel shown, the two is combined, i.e., for simultaneously including a plurality of first with reference to electricity in the present embodiment
The display panel of line ball 111 and a plurality of second reference voltage line 112, to a plurality of both ends of first reference voltage line 111 and a plurality of
The reference voltage at the both ends of two reference voltage line 112 is adjusted.Wherein, the first reference voltage line 111 and the display surface
The parallel distribution of data wire of plate 10, the distribution parallel with the scan line of the display panel of the second reference voltage line 112.
Compared to the embodiment corresponding to Fig. 5, display panel 10 also includes disclosed in the present embodiment：Positioned at frame region 12
First side 21 the 4th lead 124, and the 5th lead 125 positioned at the second side 22 of the frame region 12.Its
In, the first side 21 is adjacent with the four side 24, and the second side is relative with the first side.
The first end and the phase of voltage providing unit 120 of 4th lead 124 and the 5th lead 125 close to four side 24
Even, as shown in Figure 7；4th lead 124 and second end and described second of the 5th lead 125 away from the four side 24
Lead 122 is connected, and voltage is provided for the second end of the 4th lead 124 and the 5th lead 125 by the second lead 122；And second
The both ends of reference voltage line 112 electrically connect with the 4th lead 123 and the 5th lead 125 respectively.
In other embodiments, the 4th lead 124 and the 5th lead 125 can also be with close to the first end of four side 24
One lead 121 is connected (not shown), provides voltage for the first lead by voltage providing unit 120, is by the first lead 121
4th lead 124 and the 5th lead 125 provide voltage close to the first end of four side 24.
The description of embodiment with reference to corresponding to Fig. 3 and Fig. 4, the reference voltage line in the present embodiment are with reference to electricity by first
The latticed pressure-wire that line ball and the second reference voltage line are formed, also, on the first reference voltage line and the second reference voltage line
The reference voltage of application, reduce with the increase of reference voltage line and the distance of voltage providing unit, so as to improve display
The display effect of panel.
The overlooking the structure diagram of display panel disclosed in another embodiment of the present invention is as shown in figure 8, the display panel 10
Including viewing area 11 and frame region 12, the display panel also includes：
(the first reference voltage line i.e. shown in Fig. 3 of a plurality of reference voltage line 111 positioned at the viewing area 11
111), a plurality of reference voltage line 111 distribution parallel with the data wire of display panel 10；
Positioned at the voltage providing unit 120 of the four side 24 of frame region 12, and positioned at the frame region 12 the 3rd
First lead 121 of side 23, the 3rd side 23 are relative with the four side 24.
Wherein, the reference voltage line 111 directly carries close to the first end of the voltage providing unit 120 with the voltage
Electrically connected for unit 120, second end of the reference voltage line 111 away from the voltage providing unit 120 is drawn with described first
Line 121 electrically connects, and the current potential of the first end of the reference voltage line 111 is higher than the current potential at second end.
Also, the first lead 121 is also by the 3rd lead 123 and the phase of voltage providing unit 120 positioned at its both ends respectively
Even, voltage is provided by voltage providing unit 120 for it.
The first end of a plurality of reference voltage line 111 is directly connected with voltage providing unit 120 in the present embodiment, and it is non-through
The lead crossed positioned at the homonymy of voltage providing unit 120 is connected, and compared to the embodiment corresponding to Fig. 3, eliminates and is carried positioned at voltage
For the lead of the homonymy of unit 120.
Both ends in the present embodiment for a plurality of reference voltage 111 provide the mode of current potential, and a plurality of reference voltage line two
The difference of the current potential at end, refer to retouching for the current potential presentation mode of the first reference voltage line 111 in the embodiment corresponding to Fig. 3
State, repeat no more here.
For each embodiment for more than, it is necessary to illustrate, four side 24 can be the bottom side of the display panel
Side or top side, i.e. voltage providing unit 120 can be set and the bottom side of display panel or top side.Accordingly, its
The position of its side can be adjusted correspondingly according to the setting of four side 24.
Also, it will be understood by those skilled in the art that for the scheme shown in Fig. 3, Fig. 5 and Fig. 7, for same display
Panel, the voltage difference △ V between first lead 121 and second lead 122 are a fixed value, i.e. voltage providing unit
120 need are that the first lead 121 and the second lead 122 provide a fixed voltage respectively, you can realize the first reference voltage
Current potential on 111 each position of line reduces with the increase of its distance between voltage providing unit 120.
Accordingly, for the scheme shown in Fig. 8, for same display panel, voltage providing unit 120 is reference voltage
The voltage that the first end of line 111 provides, the voltage difference between the first lead 121 is also a fixed value.
And for the scheme shown in Fig. 4, Fig. 6 and Fig. 7, for same display panel, positioned at the first side 21
The first end of lead and the voltage difference △ V at the second end are a fixed value.That is, for same display panel, with
For second reference voltage line 112 of the parallel distribution of scan line, the current potential on each reference voltage line is identical, but with electricity
It is different that pressure, which provides current potential of the voltage 120 on different reference voltage lines, and provides electricity with reference voltage line and voltage
Press the increase of distance between 120 and reduce.
With reference to the description of above example, voltage difference △ V can be before display panel dispatches from the factory, according to the display of display panel
Effect is debugged, to determine be directed to voltage difference △ V corresponding to each display panel, voltage difference △ V after determination before dispatching from the factory,
During the use in later stage, then it will not be adjusted and be changed by driving chip again.Show for different in same production batch
Show panel, voltage difference △ V can be with identical, can also be different.
In addition, it is necessary to explanation, in Fig. 5-Fig. 7, including the first reference voltage line 111 and the second reference voltage line
112 display panel, be only in the embodiment of the present invention with the first reference voltage line 111 and the second reference voltage line 112 with picture
Exemplified by plain unit 110 electrically connects, come illustrate for applying for the first reference voltage line 111 and the second reference voltage line 112 it is alive
Mode.In other embodiments, the connection side of the first reference voltage line 111 and the second reference voltage line 112 and pixel cell 110
Also there are other diversified forms in formula, specifically refer to connected mode of the prior art, and the embodiment of the present invention is not done to this
Limit.
It will be understood by those skilled in the art that the display panel in each embodiment can apply to different show above
Showing device, the display device can be mobile phone as shown in Figure 9, or tablet personal computer, notebook computer, desktop computer,
Television set, big screen display screen etc..
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (14)
1. a kind of display panel, it is characterised in that the display panel includes viewing area and frame region, the display panel
Also include：
A plurality of reference voltage line positioned at the viewing area；
Positioned at the first lead, the second lead and voltage providing unit of the frame region, first lead and second draws
Line electrically connects with the voltage providing unit, and first lead and the second lead are electric with the both ends of the reference voltage line respectively
Connection so that the voltage applied on a plurality of reference voltage line with the reference voltage line and the voltage providing unit away from
From increase and reduce.
2. display panel according to claim 1, it is characterised in that a plurality of reference voltage line includes and the display
A plurality of first reference voltage line of the parallel distribution of data wire of panel, wherein,
The first end of each first reference voltage line electrically connects with first lead, and the of each first reference voltage line
Two ends electrically connect with second lead.
3. display panel according to claim 2, it is characterised in that it is close that first lead is located at the frame region
The side of the voltage providing unit, second lead are located at side of the frame region away from the voltage providing unit
Side, wherein, the current potential of first lead is higher than the current potential of second lead.
4. display panel according to claim 1, it is characterised in that a plurality of reference voltage line includes and the display
A plurality of second reference voltage line of the parallel distribution of scan line of panel, first lead are located at the first side of the frame region
Side, second lead are located at the second side of the frame region, and the voltage providing unit is located at the frame region
Four side, the first side is adjacent with the four side, and the second side is relative with the first side；
The display panel also includes the 3rd lead positioned at the 3rd side of the frame region；
First lead and the second lead are connected close to the first end of the four side with the voltage providing unit, described
First lead and the second lead are connected close to the second end of the 3rd side with the 3rd lead, first lead and
The current potential of the first end of two leads is higher than the current potential of the 3rd lead；
The both ends of second reference voltage line electrically connect with first lead and second lead respectively.
5. display panel according to claim 4, it is characterised in that the 3rd lead and voltage providing unit electricity
Connection.
6. display panel according to claim 1, it is characterised in that a plurality of reference voltage line includes a plurality of first ginseng
Examine pressure-wire and a plurality of second reference voltage line, parallel with the data wire of the display panel point of first reference voltage line
Cloth, second reference voltage line distribution parallel with the scan line of the display panel；
The voltage providing unit is located at the four side of the frame region, and first lead is located at the frame region
Four side, second lead are located at threeth side of the frame region away from the voltage providing unit, wherein, it is described
The current potential of first lead is higher than the current potential of second lead；
First reference voltage line electrically connects close to the first end of the voltage providing unit with first lead, and described
Second end of one reference voltage line away from the voltage providing unit electrically connects with second lead.
7. display panel according to claim 6, it is characterised in that the display panel also includes being located at the rim area
4th lead of the first side in domain, and/or, the 5th lead positioned at the second side of the frame region, wherein, described
One side is adjacent with the four side, and the second side is relative with the first side；
4th lead and the 5th lead are close to first end and the voltage providing unit of the four side or described the
One lead is connected, and the 4th lead and second end of the 5th lead away from the four side are connected with second lead；
The both ends of second reference voltage line electrically connect with the 4th lead and the 5th lead respectively.
8. according to the display panel described in claim any one of 1-7, it is characterised in that the voltage providing unit is driving core
Piece.
9. display panel according to claim 8, it is characterised in that the four side is the bottom of the display panel
Side or top side.
10. according to the display panel described in claim 2,3 or 6, it is characterised in that for same display panel, described
Voltage difference between one lead and second lead is a fixed value.
11. according to the display panel described in claim 4,5 or 7, it is characterised in that for same display panel, positioned at institute
It is a fixed value that the first end of the lead of first side, which is stated, with the voltage difference at the second end.
12. display panel according to claim 1, it is characterised in that the material of the reference voltage line is led for high resistance
Electric material.
13. display panel according to claim 12, it is characterised in that the material of the reference voltage line is metal Mo,
Or highly doped low-temperature polysilicon silicon materials, or conductive oxide semiconductor material.
14. a kind of display panel, it is characterised in that the display panel includes viewing area and frame region, the display surface
Plate also includes：
A plurality of reference voltage line positioned at the viewing area, the data wire of a plurality of reference voltage line and the display panel
Parallel distribution；
Positioned at the voltage providing unit of the frame region four side, and first positioned at the side of frame region the 3rd
Lead, the 3rd side are relative with the four side；
Wherein, the reference voltage line is directly electrically connected close to the first end of the voltage providing unit with the voltage providing unit
Connect, second end of the reference voltage line away from the voltage providing unit electrically connects with first lead, described with reference to electricity
The current potential of the first end of line ball is higher than the current potential at second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123636.5A CN107644621B (en) | 2017-11-14 | 2017-11-14 | display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123636.5A CN107644621B (en) | 2017-11-14 | 2017-11-14 | display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107644621A true CN107644621A (en) | 2018-01-30 |
| CN107644621B CN107644621B (en) | 2019-12-13 |
Family
ID=61125933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711123636.5A Active CN107644621B (en) | 2017-11-14 | 2017-11-14 | display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107644621B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463254A (en) * | 2020-04-30 | 2020-07-28 | 武汉天马微电子有限公司 | Display panel and display device |
| CN111968578A (en) * | 2020-08-31 | 2020-11-20 | 合肥维信诺科技有限公司 | Display device |
| CN115148116A (en) * | 2022-06-28 | 2022-10-04 | 武汉天马微电子有限公司 | Display panel and display device |
| WO2023226017A1 (en) * | 2022-05-27 | 2023-11-30 | 京东方科技集团股份有限公司 | Light-emitting substrate and display apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833915A (en) * | 2008-12-04 | 2010-09-15 | 株式会社半导体能源研究所 | Display device, method for driving the same, and electronic device using the display device and the method |
| CN101859541A (en) * | 2010-04-29 | 2010-10-13 | 友达光电股份有限公司 | Organic Light Emitting Diode Display |
| 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 |
| CN103927968A (en) * | 2013-06-18 | 2014-07-16 | 上海天马微电子有限公司 | OLED display device |
| CN104809988A (en) * | 2015-05-18 | 2015-07-29 | 京东方科技集团股份有限公司 | OLED (Organic Light Emitting Diode) array substrate, display panel and display device |
| US20160240140A1 (en) * | 2015-02-13 | 2016-08-18 | Samsung Display Co., Ltd. | Voltage drop compensator for display panel and display device including the same |
-
2017
- 2017-11-14 CN CN201711123636.5A patent/CN107644621B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833915A (en) * | 2008-12-04 | 2010-09-15 | 株式会社半导体能源研究所 | Display device, method for driving the same, and electronic device using the display device and the method |
| CN101859541A (en) * | 2010-04-29 | 2010-10-13 | 友达光电股份有限公司 | Organic Light Emitting Diode Display |
| CN103927968A (en) * | 2013-06-18 | 2014-07-16 | 上海天马微电子有限公司 | OLED display device |
| 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 |
| US20160240140A1 (en) * | 2015-02-13 | 2016-08-18 | Samsung Display Co., Ltd. | Voltage drop compensator for display panel and display device including the same |
| CN104809988A (en) * | 2015-05-18 | 2015-07-29 | 京东方科技集团股份有限公司 | OLED (Organic Light Emitting Diode) array substrate, display panel and display device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463254A (en) * | 2020-04-30 | 2020-07-28 | 武汉天马微电子有限公司 | Display panel and display device |
| CN111463254B (en) * | 2020-04-30 | 2022-04-19 | 武汉天马微电子有限公司 | Display panel and display device |
| CN111968578A (en) * | 2020-08-31 | 2020-11-20 | 合肥维信诺科技有限公司 | Display device |
| WO2023226017A1 (en) * | 2022-05-27 | 2023-11-30 | 京东方科技集团股份有限公司 | Light-emitting substrate and display apparatus |
| CN115148116A (en) * | 2022-06-28 | 2022-10-04 | 武汉天马微电子有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107644621B (en) | 2019-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105206221B (en) | Pixel-driving circuit, driving method, array substrate and display device | |
| CN108109583A (en) | El display device and its driving method | |
| CN110335564A (en) | A kind of array substrate, display panel and display device | |
| US8004480B2 (en) | Organic light emitting display | |
| CN105225636B (en) | Pixel-driving circuit, driving method, array base palte and display device | |
| CN105206220B (en) | Pixel-driving circuit, driving method, array base palte and display device | |
| CN110299107A (en) | A kind of organic light emitting display panel and organic light-emitting display device | |
| US12073762B2 (en) | Pixel driving circuit, pixel driving method, display panel and display device | |
| WO2016011719A1 (en) | Pixel drive circuit, driving method, array substrate and display apparatus | |
| CN204029330U (en) | Pixel-driving circuit, array base palte and display device | |
| CN106504701B (en) | AMOLED pixel-driving circuit and image element driving method | |
| US20230024912A1 (en) | Display module and driving method of display module | |
| CN107481668A (en) | A kind of display panel and display device | |
| CN107644621A (en) | Display panel | |
| DE112013006020T5 (en) | Smart Pixel Lighting and Display Microcontroller | |
| CN108492777A (en) | Driving method, display panel and the display device of pixel-driving circuit | |
| CN106816137A (en) | Display device and the method for increasing the display device brightness homogeneity | |
| CN114724514B (en) | Pixel driving circuit, driving method thereof, display panel and display device | |
| CN114695488A (en) | display device | |
| US20230078842A1 (en) | Display device | |
| CN109686308A (en) | A kind of driving method of display panel, display device and display panel | |
| CN115995206A (en) | Display device and method of inspecting the display device | |
| CN110136651A (en) | A kind of array substrate, OLED display panel and display device | |
| CN109064972A (en) | Dot structure, driving method, pixel circuit and display panel | |
| CN108877661A (en) | Dot structure, driving method, pixel circuit and display panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |