CN110416265B - Organic light-emitting display panel, aging treatment method and organic light-emitting display device - Google Patents
Organic light-emitting display panel, aging treatment method and organic light-emitting display device Download PDFInfo
- Publication number
- CN110416265B CN110416265B CN201910686854.2A CN201910686854A CN110416265B CN 110416265 B CN110416265 B CN 110416265B CN 201910686854 A CN201910686854 A CN 201910686854A CN 110416265 B CN110416265 B CN 110416265B
- Authority
- CN
- China
- Prior art keywords
- pixel unit
- organic light
- pixel
- light emitting
- display panel
- 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.)
- Active
Links
- 230000032683 aging Effects 0.000 title abstract description 29
- 238000000034 method Methods 0.000 title abstract description 14
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the invention provides an organic light-emitting display panel, an aging treatment method and an organic light-emitting display device, relates to the technical field of display, and aims to perform aging treatment and improve the uniformity of brightness attenuation degrees of organic light-emitting elements in different regions. The organic light emitting display panel includes: the display device comprises a display area and a non-display area, wherein the non-display area comprises a first non-display area and a second non-display area, and the second non-display area is provided with a power supply signal end; the power signal line is electrically connected with the power signal end, extends from the power signal end to the second non-display area and penetrates through the display area; a pixel unit located in the display region, the pixel unit including a pixel circuit and an organic light emitting element, the pixel circuit being electrically connected to the power signal line; the pixel unit comprises a first pixel unit and a second pixel unit, the distance between the first pixel unit and the power supply signal end is larger than the distance between the second pixel unit and the power supply signal end, and the aperture ratio of the first pixel unit is smaller than that of the second pixel unit.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to an organic light-emitting display panel, an aging treatment method and an organic light-emitting display device.
[ background of the invention ]
Under the influence of factors such as manufacturing process and manufacturing material, the organic light emitting element can produce a large degree of brightness attenuation after the newly produced display panel is lighted. Therefore, before the display panel is put into use, the display panel needs to be aged, and after the luminance of the organic light emitting element is stably attenuated, the display panel is put into use.
When the display panel is aged, the driving signal provided by the driving signal terminal is transmitted to the pixels in the display area via the lower frame region, but the distances between the pixels at different positions in the display area and the driving signal terminal are different, which results in that: the driving signal is transmitted towards the direction far away from the driving signal end, the attenuation degree of the driving signal is larger, the signal intensity received by the pixel far away from the driving signal end is smaller, so that the brightness attenuation degree of the organic light emitting element of the pixel is smaller, after the display panel is put into use, the attenuation degrees of the organic light emitting elements at different positions of the display area are inconsistent, the organic light emitting element close to the driving signal end enters an attenuation stationary period, and the organic light emitting element far away from the driving signal end does not enter the attenuation stationary period, so that the display uniformity of the display panel is influenced.
[ summary of the invention ]
In view of the above, embodiments of the present invention provide an organic light emitting display panel, an aging method, and an organic light emitting display device, which improve uniformity of brightness attenuation of organic light emitting elements in different regions when the display panel is aged.
In one aspect, an embodiment of the present invention provides an organic light emitting display panel, including:
the display device comprises a display area and a non-display area surrounding the display area, wherein the non-display area comprises a first non-display area and a second non-display area which extend along a first direction, and the second non-display area is provided with a power supply signal end;
a power supply signal line electrically connected to the power supply signal terminal, the power supply signal line extending from the power supply signal terminal toward the second non-display region and penetrating the display region;
a pixel unit located in the display region, the pixel unit including a pixel circuit and an organic light emitting element which are electrically connected, the pixel circuit being electrically connected to the power supply signal line;
the pixel unit comprises a first pixel unit and a second pixel unit, wherein the distance between the first pixel unit and the power supply signal end is larger than the distance between the second pixel unit and the power supply signal end, and the aperture ratio of the first pixel unit is smaller than that of the second pixel unit.
Optionally, the organic light emitting element includes an anode layer, a light emitting layer, and a cathode layer stacked together;
the area of the orthographic projection of the light emitting layer of the first pixel unit on the plane of the organic light emitting display panel is smaller than the area of the orthographic projection of the light emitting layer of the second pixel unit on the plane of the organic light emitting display panel.
Optionally, the pixel unit includes sub-pixel units of multiple colors;
the aperture ratio of the sub-pixel unit of at least one color in the first pixel unit is smaller than that of the sub-pixel unit of the same color in the second pixel unit.
Optionally, the pixel unit includes a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit;
the aperture ratio of the blue sub-pixel unit in the first pixel unit is smaller than that of the blue sub-pixel unit in the second pixel unit.
Optionally, an aperture ratio of the red sub-pixel unit in the first pixel unit is smaller than an aperture ratio of the red sub-pixel unit in the second pixel unit, and/or an aperture ratio of the green sub-pixel unit in the first pixel unit is smaller than an aperture ratio of the green sub-pixel unit in the second pixel unit.
Optionally, the aperture ratio of the pixel unit gradually decreases along a direction from the second non-display area to the first non-display area.
Optionally, the organic light emitting display panel includes n pixel unit groups, each of the pixel unit groups including a plurality of the pixel units arranged along the first direction;
the difference of the aperture ratios of the pixel units in any two adjacent pixel unit groups is the same.
Optionally, the organic light emitting display panel includes n pixel unit groups, each pixel unit group includes a plurality of pixel units arranged along the first direction, and the 1 st pixel unit group is located on a side away from the second non-display area;
On the other hand, an embodiment of the present invention provides an aging treatment method for an organic light emitting display panel, which is applied to the organic light emitting display panel, and includes:
step S1: according to the first driving voltage and the first duration, lighting the organic light-emitting display panel, and aging the organic light-emitting elements in the first pixel unit and the second pixel unit;
step S2: and after the first duration is finished, stopping aging.
Optionally, the method further includes:
step S3: detecting whether the brightness attenuation degrees of the organic light emitting elements in the first pixel unit and the second pixel unit are the same, if so, carrying out batch production on the organic light emitting display panel, carrying out batch aging on the organic light emitting display panel, if not, adjusting the aperture ratio of the first pixel unit and/or the second pixel unit, and returning to the step S1.
Optionally, if not, adjusting the aperture ratio of the first pixel unit and/or the second pixel unit includes:
if the brightness attenuation degree of the organic light-emitting element in the first pixel unit is smaller than that of the organic light-emitting element in the second pixel unit, the aperture ratio of the first pixel unit is reduced, and/or the aperture ratio of the second pixel unit is increased;
if the brightness attenuation degree of the organic light-emitting element in the first pixel unit is larger than that of the organic light-emitting element in the second pixel unit, the aperture ratio of the first pixel unit is increased, and/or the aperture ratio of the second pixel unit is decreased.
In another aspect, an embodiment of the present invention provides an organic light emitting display device, including the organic light emitting display panel.
One of the above technical solutions has the following beneficial effects:
by adopting the technical scheme provided by the embodiment of the invention, the aperture opening ratio of the first pixel unit and the second pixel unit which are different from the power signal end is adjusted, so that the aperture opening ratio of the first pixel unit which is far from the power signal end is smaller than the aperture opening ratio of the second pixel unit which is near from the power signal end, when the organic light-emitting display panel is aged, the brightness attenuation degree of the organic light-emitting elements in the first pixel unit and the second pixel unit tends to be the same, therefore, after the aging treatment is finished, the first pixel unit and the second pixel unit can transit to the attenuation stationary period, and after the organic light-emitting display panel is put into use, the first pixel unit and the second pixel unit have the same and more gradual brightness attenuation speed, and the display uniformity of the organic light-emitting display panel is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a top view of an organic light emitting display panel according to an embodiment of the present invention;
fig. 2 is another top view of an organic light emitting display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first pixel unit and a second pixel unit according to an embodiment of the present invention;
fig. 4 is a top view of an organic light emitting display panel according to an embodiment of the present invention;
fig. 5 is a top view of an organic light emitting display panel according to an embodiment of the present invention;
FIG. 6 is a flowchart of an aging method according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an organic light emitting display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first and second may be used to describe the pixel units in the embodiments of the present invention, the pixel units should not be limited to these terms. These terms are only used to distinguish pixel cells from one another. For example, the first pixel unit may also be referred to as the second pixel unit, and similarly, the second pixel unit may also be referred to as the first pixel unit without departing from the scope of the embodiments of the present invention.
An embodiment of the present invention provides an organic light emitting display panel, and with reference to fig. 1 and fig. 2, fig. 1 is a top view of the organic light emitting display panel provided by the embodiment of the present invention, fig. 2 is another top view of the organic light emitting display panel provided by the embodiment of the present invention, the organic light emitting display panel includes a display area 1 and a non-display area 2 surrounding the display area 1, the non-display area 2 includes a first non-display area 3 and a second non-display area 4 extending along a first direction, wherein the second non-display area 4 is provided with a power signal terminal 5; the organic light emitting display panel further includes a power supply signal line 6 and a pixel unit 7, wherein the power supply signal line 6 is electrically connected to the power supply signal terminal 5, the power supply signal line 6 extends from the power supply signal terminal 5 toward the second non-display area 4 and penetrates the display area 1; a pixel unit 7 is located in the display region 1, the pixel unit 7 includes a pixel circuit 8 and an organic light emitting element 9 which are electrically connected, the pixel circuit 8 is electrically connected to the power source signal line 6; the pixel unit 7 includes a first pixel unit 10 and a second pixel unit 11, wherein the distance between the first pixel unit 10 and the power signal terminal 5 is greater than the distance between the second pixel unit 11 and the power signal terminal 5, and the aperture ratio of the first pixel unit 10 is smaller than the aperture ratio of the second pixel unit 11.
Specifically, when the organic light emitting display panel provided by the embodiment of the present invention is subjected to the aging process, the driving signal provided by the power signal terminal 5 is transmitted toward the display area 1 through the second non-display area 4. Compared with the second pixel unit 11, the first pixel unit 10 is far away from the power signal terminal 5, so that the transmission distance of the driving signal is long when the driving signal is transmitted to the first pixel unit 10, and the signal attenuation degree is large, so that the intensity of the driving signal received by the first pixel unit 10 is smaller than that of the driving signal received by the second pixel unit 11. However, since the aperture ratio of the first pixel unit 10 is small, the current density of the first pixel unit 10 is increased, thereby accelerating the luminance decay of the first pixel unit 10. That is, although the intensity of the driving signal received by the first pixel unit 10 is smaller than that received by the second pixel unit 11, the brightness attenuation of the first pixel unit 10 and the brightness attenuation of the second pixel unit 11 can be ensured to be the same by increasing the current density of the first pixel unit 10 and accelerating the brightness attenuation.
Taking the aperture ratio of the first pixel unit 10 as 16.5% and the aperture ratio of the second pixel unit 11 as 20.25%, after the organic light emitting display panel is aged for one hour by a driving current 20 times that of the normal lighting, the luminance of the first pixel unit 10 is attenuated to 99.91% of the initial luminance, the luminance of the second pixel unit 11 is attenuated to 99.86% of the initial luminance, and the luminance attenuation degrees of the two are approximately consistent.
It can be seen that, by adjusting the aperture ratios of the first pixel unit 10 and the second pixel unit 11 which are different from the power signal terminal 5, the aperture ratio of the first pixel unit 10 which is farther from the power signal terminal 5 is smaller than the aperture ratio of the second pixel unit 11 which is closer to the power signal terminal 5, when the organic light emitting display panel is aged, it can be ensured that the luminance attenuation degrees of the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 are approximately the same, so that after the aging is finished, the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 can both transit to the attenuation plateau, and after the organic light emitting display panel is put into use, the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 have the same and relatively gentle luminance attenuation speed, the display uniformity of the organic light emitting display panel is improved.
Alternatively, as shown in fig. 3, fig. 3 is a schematic structural diagram of a first pixel unit and a second pixel unit provided in the embodiment of the present invention, and the organic light emitting element 9 includes an anode layer 12, a light emitting layer 13, and a cathode layer 14, which are stacked; the area of the orthographic projection of the light-emitting layer 13 of the first pixel unit 10 on the plane of the organic light-emitting display panel is smaller than the area of the orthographic projection of the light-emitting layer 13 of the second pixel unit 11 on the plane of the organic light-emitting display panel. By reducing the area of the light emitting layer 13 in the first pixel unit 10, that is, reducing the area of the light emitting area in the first pixel unit 10, that is, reducing the aperture ratio of the first pixel unit 10. The aperture opening ratio is reduced by reducing the area of the luminescent layer 13, only the evaporation area of the luminescent layer 13 needs to be reduced in the manufacturing process, the manufacturing method is simple and easy to implement, and the aperture opening ratio is easy to control.
It is understood that, in order to realize the multi-color image display, the pixel unit 7 generally includes sub-pixel units of multiple colors, and based on this, the aperture ratio of at least one sub-pixel unit of one color in the first pixel unit 10 is smaller than the aperture ratio of a sub-pixel unit of the same color in the second pixel unit 11, so as to realize the reduction of the aperture ratio of the first pixel unit 10 as a whole, so that the aperture ratio is smaller than the aperture ratio of the second pixel unit 11.
Alternatively, as shown in fig. 4, fig. 4 is another top view of the organic light emitting display panel provided in the embodiment of the present invention, where the pixel unit 7 includes a red sub-pixel unit 15, a green sub-pixel unit 16, and a blue sub-pixel unit 17; the aperture ratio of the blue sub-pixel unit 17 in the first pixel unit 10 is smaller than the aperture ratio of the blue sub-pixel unit 17 in the second pixel unit 11.
Based on the characteristics of the light-emitting material in the blue sub-pixel unit 17, the luminance attenuation of the blue sub-pixel unit 17 is greater than that of the red sub-pixel unit 15 and the green sub-pixel unit 16, and therefore, the blue sub-pixel unit 17 is more influenced by the intensity of the driving signal, that is, the luminance attenuation of the blue sub-pixel unit 17 has a greater influence on the luminance attenuation of the entire first pixel unit 10. By preferentially reducing the aperture ratio of the blue sub-pixel unit 17 in the first pixel unit 10, the brightness attenuation degrees of the blue sub-pixel units 17 in the first pixel unit 10 and the second pixel unit 11 tend to be the same, and the difference of the brightness attenuation degrees of the whole first pixel unit 10 and the second pixel unit 11 can be effectively reduced.
Optionally, referring to fig. 4 again, in order to further reduce the difference between the overall brightness attenuation degrees of the first pixel unit 10 and the second pixel unit 11, the aperture ratios of the red sub-pixel unit 15 and/or the green sub-pixel unit 16 may be adjusted, so that the aperture ratio of the red sub-pixel unit 15 in the first pixel unit 10 is smaller than the aperture ratio of the red sub-pixel unit 15 in the second pixel unit 11, and/or the aperture ratio of the green sub-pixel unit 16 in the first pixel unit 10 is smaller than the aperture ratio of the green sub-pixel unit 16 in the second pixel unit 11.
Alternatively, as shown in fig. 5, fig. 5 is another top view of the organic light emitting display panel provided in the embodiment of the invention, and the aperture ratio of the pixel unit 7 gradually decreases along the direction from the second non-display area 4 to the first non-display area 3. In the process of transmitting the driving signal from the second non-display area 4 to the display area 1, the attenuation degree of the driving signal is gradually increased, the intensity is gradually reduced, and the attenuation of the brightness of the pixel unit 7 is gradually accelerated by controlling the aperture ratio of the pixel unit 7 to be gradually reduced, so that the brightness attenuation degrees of the pixel units 7 at different areas of the display area 1 are ensured to be consistent.
Optionally, referring to fig. 5 again, the organic light emitting display panel includes n pixel unit groups 18, each pixel unit group 18 includes a plurality of pixel units 7 arranged along the first direction, and the aperture ratios of the pixel units 7 in any two adjacent pixel unit groups 18 are the same, so that the aperture ratios of the pixel units 7 in the display area 1 are uniformly changed along the direction from the second non-display area 4 to the first non-display area 3, and the uniformity of the luminance attenuation degrees of the organic light emitting elements 9 in each area of the display area 1 is further improved.
Alternatively, referring to fig. 5 again, the organic light emitting display panel includes n pixel unit groups 18, each pixel unit group 18 includes a plurality of pixel units 7 arranged along a first direction, and the 1 st pixel unit group 18 is located at a side far from the second non-display region 4.
According to
Deducing:
wherein i is more than or equal to 1 and less than or equal to n-1, E is luminous efficiency, L is brightness value, J is current density, ARiAnd ARi+1The aperture ratios of the pixel cells 7 in the ith pixel cell group 18 and the (I + 1) th pixel cell group 18, respectively, and further according to Ii+1＝In-(n-i-1)×ΔI，Ii＝In-(n-i)×ΔI，InFor the standard driving current provided during the aging process, that is, the driving current received by the nth pixel cell group 18, Δ I is the attenuation current of the standard driving current flowing through each pixel cell group 18, and we obtain:
further, in the above-mentioned case,
wherein, I1The drive current received by the 1 st group of pixel cells 18. By adjusting the aperture ratio of the pixel units 7 of the two adjacent pixel unit groups 18 according to the attenuation condition of the driving current, the luminance attenuation generated by the ith pixel unit group 18 under the action of the driving current with a small aperture ratio and low intensity can be consistent with the luminance attenuation generated by the (i + 1) th pixel unit group 18 under the action of the driving current with a large aperture ratio and high intensity, and the uniformity of the luminance attenuation degree of the organic light-emitting elements 9 in different regions of the display region 1 is further improved.
An embodiment of the present invention further provides an aging method for an organic light emitting display panel, where the aging method is applied to the organic light emitting display panel, and as shown in fig. 6 with reference to fig. 1 and fig. 2, fig. 6 is a flowchart of the aging method provided in the embodiment of the present invention, and the aging method includes:
step S1: the organic light emitting display panel is lit according to the first driving voltage and the first duration, and the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 are aged.
Step S2: after the first duration is over, aging is stopped.
Since the aperture ratios of the first pixel unit 10 and the second pixel unit 11 are different in the organic light emitting display panel: the aperture ratio of the first pixel unit 10 far away from the power signal terminal 5 is smaller than the aperture ratio of the second pixel unit 11 near the power signal terminal 5, so when the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 are aged by the first driving voltage, although the intensity of the driving signal received by the first pixel unit 10 is smaller than that received by the second pixel unit 11, the luminance attenuation of the first pixel unit 10 and the second pixel unit 11 is accelerated by increasing the current density of the first pixel unit 10, and the luminance attenuation degrees of the first pixel unit 10 and the second pixel unit 11 in the aging process can still be ensured to be the same. Therefore, by using the aging processing method provided by the embodiment of the present invention, after the aging processing is finished, it is ensured that the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 can both transit to the decay stationary period, and after the organic light emitting display panel is put into use, the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 have the same and relatively gentle luminance decay speed, so that the display uniformity of the organic light emitting display panel is improved.
Optionally, referring to fig. 6 again, the aging method provided in the embodiment of the present invention further includes:
step S3: detecting whether the brightness attenuation degrees of the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 are the same, if so, performing batch production on the organic light emitting display panel, performing batch aging on the organic light emitting display panel, otherwise, adjusting the aperture ratio of the first pixel unit 10 and/or the second pixel unit 11, and returning to the step S1.
It should be noted that, after the aging is finished, when it is detected that the brightness attenuation degrees of the organic light emitting devices 9 in the first pixel unit 10 and the second pixel unit 11 are different, another organic light emitting display panel may be provided, in which the aperture ratio of the first pixel unit 10 and/or the second pixel unit 11 is readjusted compared to the aged organic light emitting display panel, and the organic light emitting display panel is lightened again according to the first driving voltage and the first duration, so as to age the organic light emitting devices 9 in the first pixel unit 10 and the second pixel unit 11 again.
After the aging is finished, by detecting the brightness attenuation degree of the organic light emitting element 9 in the first pixel unit 10 and the second pixel unit 11, the aperture ratio of the first pixel unit 10 and/or the second pixel unit 11 can be further adjusted according to the brightness attenuation degree difference of the organic light emitting element 9 in the first pixel unit 10 and the second pixel unit 11 until the brightness attenuation degree of the organic light emitting element 9 in the first pixel unit 10 and the second pixel unit 11 is the same, so that the brightness attenuation degree of the organic light emitting element 9 in the organic light emitting display panel which is finally put into use is ensured to be consistent.
Optionally, if no, the adjusting the aperture ratio of the first pixel unit 10 and/or the second pixel unit 11 in step S3 may specifically include:
if the degree of brightness attenuation of the organic light emitting element 9 in the first pixel unit 10 is less than that of the organic light emitting element 9 in the second pixel unit 11, the aperture ratio of the first pixel unit 10 is decreased, and/or the aperture ratio of the second pixel unit 11 is increased; so as to accelerate the brightness attenuation of the first pixel unit 10 and/or slow down the brightness attenuation of the second pixel unit 11, and ensure the consistent brightness attenuation degree of the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11.
If the degree of brightness attenuation of the organic light emitting element 9 in the first pixel unit 10 is greater than that of the organic light emitting element 9 in the second pixel unit 11, increasing the aperture ratio of the first pixel unit 10 and/or decreasing the aperture ratio of the second pixel unit 11; so as to slow down the brightness decay of the first pixel unit 10 and/or accelerate the brightness decay of the second pixel unit 11, and ensure the consistent brightness decay degree of the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11.
As shown in fig. 7, fig. 7 is a schematic structural diagram of an organic light emitting display device provided in an embodiment of the present invention, and the organic light emitting display device includes the organic light emitting display panel 100. The specific structure of the organic light emitting display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the organic light emitting display device shown in fig. 7 is only a schematic illustration, and the organic light emitting display device may be any electronic device having a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
Since the organic light emitting display device provided by the embodiment of the invention includes the organic light emitting display panel, with the organic light emitting display device, after aging is finished, after aging treatment is finished, it is ensured that the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 can transition to the decay stationary period, and after the organic light emitting display device is put into use, the organic light emitting elements 9 in the first pixel unit 10 and the second pixel unit 11 have the same and more gradual brightness decay speed, so that the display uniformity of the organic light emitting display device is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An organic light emitting display panel, comprising:
the display device comprises a display area and a non-display area surrounding the display area, wherein the non-display area comprises a first non-display area and a second non-display area which extend along a first direction, and the second non-display area is provided with a power supply signal end;
a power supply signal line electrically connected to the power supply signal terminal, the power supply signal line extending from the power supply signal terminal toward the second non-display region and penetrating the display region;
a pixel unit located in the display region, the pixel unit including a pixel circuit and an organic light emitting element which are electrically connected, the pixel circuit being electrically connected to the power supply signal line;
the pixel unit comprises a first pixel unit and a second pixel unit, wherein the distance between the first pixel unit and the power supply signal end is larger than the distance between the second pixel unit and the power supply signal end, and the aperture ratio of the first pixel unit is smaller than that of the second pixel unit.
2. The organic light-emitting display panel according to claim 1, wherein the organic light-emitting element comprises an anode layer, a light-emitting layer, and a cathode layer which are stacked;
the area of the orthographic projection of the light emitting layer of the first pixel unit on the plane of the organic light emitting display panel is smaller than the area of the orthographic projection of the light emitting layer of the second pixel unit on the plane of the organic light emitting display panel.
3. The organic light-emitting display panel according to claim 1, wherein the pixel unit includes sub-pixel units of a plurality of colors;
the aperture ratio of the sub-pixel unit of at least one color in the first pixel unit is smaller than that of the sub-pixel unit of the same color in the second pixel unit.
4. The organic light emitting display panel of claim 3, wherein the pixel unit comprises a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit;
the aperture ratio of the blue sub-pixel unit in the first pixel unit is smaller than that of the blue sub-pixel unit in the second pixel unit.
5. The panel of claim 4, wherein the aperture ratio of the red sub-pixel unit in the first pixel unit is smaller than the aperture ratio of the red sub-pixel unit in the second pixel unit, and/or the aperture ratio of the green sub-pixel unit in the first pixel unit is smaller than the aperture ratio of the green sub-pixel unit in the second pixel unit.
6. The organic light-emitting display panel according to claim 1, wherein an aperture ratio of the pixel unit is gradually decreased in a direction along the second non-display region toward the first non-display region.
7. The organic light-emitting display panel according to claim 6, wherein the organic light-emitting display panel comprises n pixel cell groups, each of the pixel cell groups comprising a plurality of the pixel cells arranged in the first direction;
the difference of the aperture ratios of the pixel units in any two adjacent pixel unit groups is the same.
8. The panel according to claim 6, wherein the panel comprises n pixel cell groups, each pixel cell group comprising a plurality of the pixel cells arranged in the first direction, and a 1 st pixel cell group located on a side away from the second non-display region;
9. An organic light-emitting display device comprising the organic light-emitting display panel according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910686854.2A CN110416265B (en) | 2019-07-29 | 2019-07-29 | Organic light-emitting display panel, aging treatment method and organic light-emitting display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910686854.2A CN110416265B (en) | 2019-07-29 | 2019-07-29 | Organic light-emitting display panel, aging treatment method and organic light-emitting display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110416265A CN110416265A (en) | 2019-11-05 |
| CN110416265B true CN110416265B (en) | 2022-02-01 |
Family
ID=68363618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910686854.2A Active CN110416265B (en) | 2019-07-29 | 2019-07-29 | Organic light-emitting display panel, aging treatment method and organic light-emitting display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110416265B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113206125A (en) * | 2020-05-22 | 2021-08-03 | 广东聚华印刷显示技术有限公司 | Display panel and manufacturing method thereof, mask plate and light-emitting device |
| CN111740034B (en) * | 2020-06-30 | 2024-03-08 | 武汉天马微电子有限公司 | Aging method and device for organic light-emitting display panel |
| CN113410269B (en) * | 2021-06-03 | 2022-10-04 | 武汉天马微电子有限公司 | Display panel and display device |
| CN116471880B (en) * | 2023-04-20 | 2024-07-09 | 绵阳惠科光电科技有限公司 | Display panel, display panel design method and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584956A (en) * | 2004-06-07 | 2005-02-23 | 友达光电股份有限公司 | Organic LED displaying panels with uniform height |
| CN103927977A (en) * | 2013-12-31 | 2014-07-16 | 上海天马有机发光显示技术有限公司 | Organic light emitting diode displayed array substrate and displayer |
| CN207165574U (en) * | 2017-06-20 | 2018-03-30 | 信利半导体有限公司 | A kind of OLED modules and display device |
| CN207966984U (en) * | 2018-01-02 | 2018-10-12 | 京东方科技集团股份有限公司 | A kind of pixel arrangement structure and relevant apparatus |
| CN108922964A (en) * | 2018-08-01 | 2018-11-30 | 上海天马有机发光显示技术有限公司 | A kind of determination method of OLED display panel aperture opening ratio |
| CN109448635A (en) * | 2018-12-06 | 2019-03-08 | 武汉华星光电半导体显示技术有限公司 | OLED display panel |
| CN109817643A (en) * | 2019-01-29 | 2019-05-28 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733492B (en) * | 2013-12-23 | 2018-11-13 | 昆山工研院新型平板显示技术中心有限公司 | A kind of organic light-emitting display device and preparation method thereof |
| CN104091818B (en) * | 2014-06-23 | 2017-09-29 | 上海天马有机发光显示技术有限公司 | A kind of organic electroluminescence display panel, device and its manufacture method |
| CN108735790B (en) * | 2018-05-30 | 2020-11-10 | 武汉天马微电子有限公司 | Display panel, display device and pixel driving method |
| CN114256322A (en) * | 2018-06-28 | 2022-03-29 | 厦门天马微电子有限公司 | Organic light-emitting display panel, display device and display method thereof |
-
2019
- 2019-07-29 CN CN201910686854.2A patent/CN110416265B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584956A (en) * | 2004-06-07 | 2005-02-23 | 友达光电股份有限公司 | Organic LED displaying panels with uniform height |
| CN103927977A (en) * | 2013-12-31 | 2014-07-16 | 上海天马有机发光显示技术有限公司 | Organic light emitting diode displayed array substrate and displayer |
| CN207165574U (en) * | 2017-06-20 | 2018-03-30 | 信利半导体有限公司 | A kind of OLED modules and display device |
| CN207966984U (en) * | 2018-01-02 | 2018-10-12 | 京东方科技集团股份有限公司 | A kind of pixel arrangement structure and relevant apparatus |
| CN108922964A (en) * | 2018-08-01 | 2018-11-30 | 上海天马有机发光显示技术有限公司 | A kind of determination method of OLED display panel aperture opening ratio |
| CN109448635A (en) * | 2018-12-06 | 2019-03-08 | 武汉华星光电半导体显示技术有限公司 | OLED display panel |
| CN109817643A (en) * | 2019-01-29 | 2019-05-28 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110416265A (en) | 2019-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110416265B (en) | Organic light-emitting display panel, aging treatment method and organic light-emitting display device | |
| US11574968B2 (en) | Display panel and display device | |
| CN107819023B (en) | Organic light-emitting display panel and display device | |
| CN108807489B (en) | Organic light emitting display panel and organic light emitting display device | |
| US20210359033A1 (en) | Display panel and display device | |
| CN108922964B (en) | Method for determining aperture opening ratio of OLED display panel | |
| US20190236997A1 (en) | Display driving method and organic light-emitting display device thereof | |
| US9214134B2 (en) | Method of displaying image of display panel | |
| CN108281469B (en) | Organic light emitting display panel and display device | |
| CN108878493B (en) | Display panel and display device | |
| US11869450B2 (en) | Display brightness adjustment method and related apparatus | |
| CN104716167A (en) | Organic electroluminescence display device, manufacturing method thereof and display device | |
| CN105807513A (en) | Double-side display panel, making method thereof and double-side display device | |
| CN106935615A (en) | Display screen preparation, display screen body and electronic display unit | |
| CN110416275A (en) | Display panel, display device and its driving method | |
| CN110310573B (en) | Display panel | |
| CN105788527A (en) | Pixel call method and pixel call device | |
| US20180331162A1 (en) | Pixel element, method for driving the same, display panel, and display device | |
| CN108511488A (en) | The driving method of display panel and display device and display panel | |
| CN108417179B (en) | Light emitting device and display apparatus | |
| WO2021027141A1 (en) | Display panel | |
| CN107579107B (en) | OLED display device and electronic equipment | |
| CN111312775B (en) | Pixel unit, display panel, brightness compensation method of display panel and display device | |
| CN211062744U (en) | Double-sided display panel | |
| US6794819B2 (en) | Electrode structure with white balance adjustment |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211109 Address after: No.8, liufangyuan Henglu, Donghu New Technology Development Zone, Wuhan City, Hubei Province Applicant after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 201201 Applicant before: SHANGHAI TIANMA AM-OLED Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |