CN203931457U - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN203931457U CN203931457U CN201420342620.9U CN201420342620U CN203931457U CN 203931457 U CN203931457 U CN 203931457U CN 201420342620 U CN201420342620 U CN 201420342620U CN 203931457 U CN203931457 U CN 203931457U
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Abstract
The utility model provides a kind of display panel and display device, and this display panel comprises two groups of pixel-driving circuits; And in every two adjacent pixel column of each primary colours, the operating voltage line of a pixel column accesses first group of pixel-driving circuit, and access point is positioned at a side at the first row pixel place of pel array; The operating voltage line of one other pixel row accesses second group of pixel-driving circuit, and access point is positioned at a side at last column pixel place of pel array.Like this in the position of every a line, any two neighbors that belong to same primary colours to the distance of pixel-driving circuit and be all a definite value, due to the operating voltage to the distance final decision pixel of pixel-driving circuit, the operating voltage sum of any two neighbors is definite value, the brightness sum of two light-emitting components that any two neighbors are corresponding is equated, thereby make the display brightness of whole display panel even.
Description
Technical field
The utility model relates to display technique field, relates in particular to a kind of display panel and display device.
Background technology
For existing display device, Organic Light Emitting Diode (Organic LightEmitting Diode, OLED) as a kind of current mode luminescent device, because of its autoluminescence having, fast response, wide visual angle and can be produced on the first-class feature of flexible substrate and be applied to more and more in the middle of high-performance demonstration field.
Be illustrated in figure 1 the schematic diagram of a kind of OLED product of the prior art, drive circuit (comprising red driving circuit, green driving circuit and the blue driving circuit) operated by rotary motion of pixel at the top of display screen, and the pixel compensation circuit that is this row pixel by the operating voltage line of each row provide operating voltage.But, because operating voltage line itself exists certain line resistance, can cause like this generation of pressure drop, for the pixel cell nearer apart from driving circuit, its brightness is higher, and away from the pixel cell of driving circuit, brightness is lower, has caused the inhomogeneous problem of display brightness.
Utility model content
The purpose of this utility model is to propose a kind of method that can make the uniform OLED display panel of display brightness and driving display panel.
The utility model provides a kind of display panel, comprises two groups of pixel-driving circuits; And in every two adjacent pixel column of each primary colours, the operating voltage line of a pixel column accesses first group of pixel-driving circuit, and access point is positioned at a side at the first row pixel place of pel array; The operating voltage line of one other pixel row accesses second group of pixel-driving circuit, and access point is positioned at a side at last column pixel place of pel array.
Preferably, first group of pixel-driving circuit is arranged on a side at the first row pixel place in described display panel; Second group of pixel-driving circuit is arranged on a side at last column pixel place in described display panel.
Preferably, the operating voltage line of each odd pixel column of each primary colours is linked into first group of pixel-driving circuit, and the operating voltage line of each even pixel row is linked into second group of pixel-driving circuit; Or,
The operating voltage line of each even pixel row of each primary colours is linked into first group of pixel-driving circuit, and the operating voltage line of each odd pixel column is linked into second group of pixel-driving circuit.
Preferably, described display panel comprises N kind primary colours, and each group pixel-driving circuit comprises N sub-driving circuit; Each in first group of pixel-driving circuit driving circuit is connected with a kind of operating voltage line of each odd pixel column of primary colours, and the sub-driving circuit of each in second group of pixel-driving circuit is connected with a kind of operating voltage line of each even pixel row of primary colours; Wherein, N >=3.
Preferably, the value of described N is that 3,3 kinds of primary colours are respectively redness, green, blue.
Preferably, described display panel is active matrix organic light-emitting diode (AMOLED) panel AMOLED panel.
The utility model also provides a kind of display device, comprises the display panel described in above-mentioned any one.
The display panel that the utility model provides, comprises two groups of pixel-driving circuits; And in every two adjacent pixel column of each primary colours, the operating voltage line of a pixel column accesses first group of pixel-driving circuit, and access point is positioned at a side at the first row pixel place of pel array; The operating voltage line of one other pixel row accesses second group of pixel-driving circuit, and access point is positioned at a side at last column pixel place of pel array.Like this in the position of every a line, any two neighbors that belong to same primary colours to the distance of pixel-driving circuit and be all a definite value, due to the operating voltage to the distance final decision pixel of pixel-driving circuit, the operating voltage sum of two described neighbors is definite value, the brightness sum that makes to belong to two light-emitting components that any two neighbors of same primary colours are corresponding equates, thereby makes the display brightness of whole display panel even.
Brief description of the drawings
Fig. 1 is the structural representation of display panel of the prior art;
The structural representation of the display panel that Fig. 2 provides for the utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
The utility model provides a kind of display panel, as shown in Figure 2, comprise two groups of pixel-driving circuits 110 and 120 and array base palte, on array base palte, be formed with pel array 200, pel array 200 comprises different base colors (redness, green, blue) pixel column, (shown in Fig. 2 is to comprise 15 pixel columns in each pixel column, to comprise multiple sub-pix unit corresponding to these primary colours, a kind of situation that each pixel column comprises 5 row sub-pix unit, wherein, 211-215 is red pixel column, 221-225 is green pixel column, 231-235 is blue pixel column, certainly in practical application, the number of pixel column will be much larger than 15 row, and former 5 row that are greater than of line number, but it realizes consistent with Fig. 2 of principle, and the utility model only describes in conjunction with Fig. 2), in any two adjacent pixel columns of each primary colours, have the operating voltage line of a pixel column to access first group of pixel-driving circuit 110, access point is positioned at a side at the first row (the first row) the pixel place of pel array, the operating voltage line of one other pixel row accesses second group of pixel-driving circuit 120, and access point is positioned at a side at last column (fifth line) pixel place of pel array, classify example as with red pixel, the operating voltage line access driving circuit 110 of pixel column 211,213,215, and access point is positioned at a side at the first row pixel place, the i.e. top of the first row pixel, the operating voltage line access driving circuit 120 of pixel column 212,214, and access point is positioned at a side at fifth line pixel place, the i.e. below of fifth line pixel.
Consistent in the connected mode of operating voltage line and the pixel compensation circuit of each pixel and prior art in the utility model, as shown in Fig. 1 or 2, the pixel compensation circuit of each pixel of a pixel column is connected to the operating voltage line of this pixel column by parallel way.
In conjunction with Fig. 2, principle of the present utility model is described, suppose that it is the operating voltage of ELVDD1 and ELVDD2 that two pixel drive unit provide respectively initial voltage, and hypothesis operating voltage decline △ V after a pixel, for all capable pixels of M that access the first pixel drive unit 100, its operating voltage is that (such as the odd column pixel in figure, it is the 1st years old for ELVDD1-(M-1) △ V, 2, 3, 4, the operating voltage of 5 row is ELVDD1, ELVDD1-△ V, ELVDD1-2 △ V, ELVDD1-3 △ V, ELVDD1-4 △ V), for all capable pixels of M of access the second pixel drive unit, its operating voltage is that (such as the even column pixel in figure, it the 1st for ELVDD2-(5-M) △ V accordingly, 2, 3, 4, the operating voltage of 5 row is (ELVDD2-4 △ V, ELVDD2-3 △ V, ELVDD2-2 △ V, ELVDD2-△ V, ELVDD2), and due to any two the sub-pix unit of going up in the row direction adjacent same color, can access respectively the first pixel-driving circuit and the second pixel-driving circuit, two of adjacent same color operating voltage sums corresponding to sub-pix unit are:
V0＝ELVDD1-(M-1)△V+ELVDD2-(5-M)△V＝ELVDD1+ELVDD2-4△V。
That is to say any two sub-pix unit of going up in the row direction adjacent same color, its operating voltage sum is the definite value irrelevant with its line number.Like this, in the time of luminescence display, any two brightness sums that go up in the row direction the sub-pix unit of adjacent same color can be maintained steady state value.Thereby ensure that display panel sends out uniformity of light.
Preferably, as shown in Figure 2, first group of pixel-driving circuit 110 is arranged on a side at the first row pixel place in display panel, and second group of pixel-driving circuit 120 is arranged on a side at last column pixel place in display panel.
The benefit of doing is like this that one side can be arranged apart by driving circuit, reduces the thickness of display panel, can make as much as possible on the other hand pixel-driving circuit near the pixel column driving, and reduces the pressure drop on transmission line, and then reduce the wastage.
Be understood that; no matter the first pixel-driving circuit and the second pixel-driving circuit are arranged on to which position; in each row, the operating voltage sum of the sub-pix unit of two adjacent same colors all equates, the utility model embodiment preferred embodiment and should not be construed as the restriction to the utility model protection domain.
Preferably, as shown in Figure 2, each odd pixel column of each primary colours is linked into first group of pixel-driving circuit 110, and each even pixel row are linked into second group of pixel-driving circuit 120.
In this way, can realize the same of technique, reduce the manufacture difficulty of display panel.Certainly in practical application, the odd number (even number) of each primary colours is listed as the pixel-driving circuit accessing can be not identical yet.Such as, the odd column of red pixel can access the first pixel-driving circuit, and even column accesses the second pixel-driving circuit; The odd column of blue and green pixel is all accessed to the second pixel-driving circuit simultaneously, even column can access the first pixel-driving circuit, as long as the operating voltage line of adjacent two pixel columns of same primary colours enters different pixel-driving circuits from a side of the first row pixel and a side joint of last column pixel respectively, can realize the technical solution of the utility model.
Preferably, as shown in Figure 2, display panel comprises 3 kinds of primary colours, and each group pixel-driving circuit comprises 3 sub-driving circuits, i.e. red driving circuit, green driving circuit and blue driving circuit; Each in first group of pixel-driving circuit operating voltage line of sub-driving circuit and each odd pixel column of a kind of primary colours are connected, and the operating voltage line of the sub-driving circuit of each in second group of pixel-driving circuit is connected with each even pixel row of a kind of primary colours.
Certainly in practical application, N also can get the value that other are greater than 3, and the technical scheme that the utility model provides is applicable equally for four primary colours or other many primary colours display panel.
Preferably, described display panel is active matrix organic light-emitting diode (AMOLED) panel AMOLED (Active-matrix organic light-emitting diode, active matrix organic light-emitting diode or active-matrix organic light emitting diode) panel.
Based on identical design, the utility model also provides a kind of method that drives display panel, comprising:
Step S1 arranges two groups of pixel-driving circuits in display panel;
Step S2, for every two adjacent pixel column of each primary colours of described display panel, is linked into first group of pixel-driving circuit by the operating voltage line of one of them pixel column, and access point is positioned at a side at the first row pixel place of pel array; The operating voltage line of one other pixel row is accessed to second group of pixel-driving circuit, and access point is positioned at a side at last column pixel place of pel array;
Step S3, makes two groups of pixel-driving circuits provide identical operating voltage to the operating voltage line of access.
Preferably, described step S2 specifically comprises: for each primary colours of display panel,
The operating voltage line of its each odd pixel column is accessed to first group of pixel-driving circuit, the operating voltage line of its each even pixel row is accessed to second group of pixel-driving circuit; Or,
The operating voltage line of its each odd pixel column is accessed to second group of pixel-driving circuit, the operating voltage line of its each even pixel row is accessed to first group of pixel-driving circuit.
The utility model also provides a kind of display device, comprises the display panel described in above-mentioned any one.
The display device here can be: any product or parts with Presentation Function such as Electronic Paper, mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a display panel, is characterized in that, comprises two groups of pixel-driving circuits; And in every two adjacent pixel column of each primary colours, the operating voltage line of a pixel column accesses first group of pixel-driving circuit, and access point is positioned at a side at the first row pixel place of pel array; The operating voltage line of one other pixel row accesses second group of pixel-driving circuit, and access point is positioned at a side at last column pixel place of pel array.
2. display panel as claimed in claim 1, is characterized in that, first group of pixel-driving circuit is arranged on a side at the first row pixel place in described display panel; Second group of pixel-driving circuit is arranged on a side at last column pixel place in described display panel.
3. display panel as claimed in claim 1, is characterized in that, the operating voltage line of each odd pixel column of each primary colours is linked into first group of pixel-driving circuit, and the operating voltage line of each even pixel row is linked into second group of pixel-driving circuit; Or,
The operating voltage line of each even pixel row of each primary colours is linked into first group of pixel-driving circuit, and the operating voltage line of each odd pixel column is linked into second group of pixel-driving circuit.
4. the display panel as described in claim 1 or 3, is characterized in that, described display panel comprises N kind primary colours, and each group pixel-driving circuit comprises N sub-driving circuit; Each in first group of pixel-driving circuit driving circuit is connected with a kind of operating voltage line of each odd pixel column of primary colours, and the sub-driving circuit of each in second group of pixel-driving circuit is connected with a kind of operating voltage line of each even pixel row of primary colours; Wherein, N >=3.
5. display panel as claimed in claim 1, is characterized in that, the value of described N is that 3,3 kinds of primary colours are respectively redness, green, blue.
6. display panel as claimed in claim 1, is characterized in that, described display panel is active matrix organic light-emitting diode (AMOLED) panel AMOLED panel.
7. a display device, is characterized in that, comprises the display panel described in claim 1-6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342620.9U CN203931457U (en) | 2014-06-24 | 2014-06-24 | Display panel and display device |
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| CN201420342620.9U CN203931457U (en) | 2014-06-24 | 2014-06-24 | Display panel and display device |
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| CN203931457U true CN203931457U (en) | 2014-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091561A (en) * | 2014-06-24 | 2014-10-08 | 京东方科技集团股份有限公司 | Display panel and driving method thereof and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091561A (en) * | 2014-06-24 | 2014-10-08 | 京东方科技集团股份有限公司 | Display panel and driving method thereof and display device |
| WO2015196610A1 (en) * | 2014-06-24 | 2015-12-30 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
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