CN110137231B - Display panel - Google Patents

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CN110137231B
CN110137231B CN201910429929.9A CN201910429929A CN110137231B CN 110137231 B CN110137231 B CN 110137231B CN 201910429929 A CN201910429929 A CN 201910429929A CN 110137231 B CN110137231 B CN 110137231B
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pixel
equal
pixel unit
display panel
pixel units
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CN110137231A (en
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陶林
刘宏俊
李胜坤
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Suzhou Qingyue Optoelectronics Technology Co Ltd
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Suzhou Qingyue Optoelectronics Technology Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/17Passive-matrix OLED displays

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Abstract

The application discloses a display panel belongs to and shows technical field. The display panel includes: n first electrodes, wherein n is a positive integer and is not less than 2; the display array comprises m rows and N columns of N pixel units, wherein at least two pixel units with different resistance values exist in the display array, the area of the pixel unit with the large resistance value is smaller than that of the pixel unit with the small resistance value for any two of the at least two pixel units, m is a positive integer and is not less than 1, and m multiplied by N is not less than N; m second electrodes; each row of pixel units is connected with a first electrode, and each column of pixel units is connected with a second electrode. The total brightness is low due to the fact that the power of the pixel unit with the large resistance value in the display panel is low, the brightness of the pixel unit can be increased by reducing the area of the pixel unit with the large resistance value, the problem that the display brightness of the display panel is not uniform can be reduced to a certain extent, and the display effect of the display panel is improved.

Description

Display panel
Technical Field
The application relates to the technical field of display, in particular to a display panel.
Background
Organic Light-Emitting diodes (OLEDs) utilize a self-Emitting Light-Emitting mechanism, do not require a backlight, and when applied to a display panel and a display device, the overall thickness of the display panel and the display device is thin, which is beneficial to realizing a Light and thin design.
Disclosure of Invention
The embodiment of the application provides a display panel, which can solve the problem of poor display effect caused by uneven display brightness of the display panel in the related art.
In one aspect, an embodiment of the present application provides a display panel, including:
n first electrodes, wherein n is a positive integer and is not less than 2;
the display array comprises m rows and N columns of N pixel units, wherein at least two pixel units with different resistance values exist in the display array, the area of the pixel unit with the large resistance value is smaller than that of the pixel unit with the small resistance value for any two of the at least two pixel units, m is a positive integer and is not less than 1, and m is multiplied by N;
the pixel units in the p-th row in the display array are connected with the p-th first electrode in the n first electrodes, p is a positive integer, and p is more than or equal to 1 and less than or equal to n;
m second electrodes;
and the q-th row of pixel units in the display array is connected with the q-th second electrode in the m second electrodes, q is a positive integer, and q is more than or equal to 1 and less than or equal to m.
In an alternative embodiment, the first electrode is a cathode electrode of the display panel;
at least one row of pixel units in the display array has at least two pixel units with different resistance values, and for any two pixel units in the at least two pixel units with different resistance values, the area of the pixel unit with a large resistance value is smaller than that of the pixel unit with a small resistance value.
In an alternative embodiment, for the ith pixel cell and the jth pixel cell with different resistance values in the xth column of pixel cells, the following formula is satisfied:
Figure BDA0002068664580000021
wherein R isiRepresents the resistance value, R, of the ith pixel celljRepresents the resistance value, S, of the jth pixel celliDenotes the area of the ith pixel cell, SjThe area of the jth pixel unit is expressed, x, i and j are positive integers, x is more than or equal to 1 and less than or equal to n, i is more than or equal to 1 and less than or equal to m, and j is more than or equal to 1 and less than or equal to m.
In an alternative embodiment, the ith pixel unit and the jth pixel unit are two adjacent pixel units in the xth column of pixel units.
In an alternative embodiment, the second electrode is an anode electrode of the display panel;
at least two pixel units with different resistance values exist in at least one row of pixel units in the display array, and for any two pixel units in the at least two pixel units with different resistance values, the area of the pixel unit with a large resistance value is smaller than that of the pixel unit with a small resistance value.
In an alternative embodiment, for the kth pixel unit and the l pixel unit with different resistance values in the y row of pixel units, the following formula is satisfied:
Figure BDA0002068664580000022
wherein R iskRepresents the resistance value, R, of the kth pixel celllRepresents the resistance value of the first pixel unit, SkDenotes the area of the kth pixel cell, SlThe area of the first pixel unit is expressed, y, k and l are positive integers, y is more than or equal to 1 and less than or equal to m, k is more than or equal to 1 and less than or equal to n, and l is more than or equal to 1 and less than or equal to n.
In an alternative embodiment, the kth pixel unit and the l-th pixel unit are two adjacent pixel units in the y-th row of pixel units.
In an alternative embodiment, each of the N pixel units is a trapezoid;
for the pixel units in the z-th row, along the first direction of the row where the pixel units in the z-th row are located, the adjacent s-th pixel unit and t-th pixel unit are located, the upper bottom of the s-th pixel unit is equal to the lower bottom of the t-th pixel unit, z, s and t are positive integers, z is greater than or equal to 1 and less than or equal to m, s is greater than or equal to 1 and less than or equal to n, and t is greater than or equal to 1 and less than or equal to n.
In an optional embodiment, for the z +1 th row of pixel units, along the first direction, the u-th pixel unit and the v-th pixel unit are adjacent, the lower base of the u-th pixel unit is equal to the upper base of the v-th pixel unit, u and v are positive integers, u is greater than or equal to 1 and less than or equal to n, and v is greater than or equal to 1 and less than or equal to n.
In an alternative embodiment, the display panel is a passive matrix organic electroluminescent diode display panel.
The technical scheme at least comprises the following advantages:
the area of the pixel unit with a large resistance value is smaller than that of the pixel unit with a small resistance value for two pixel units with two different resistance values of at least one column of pixel units in the display panel, and the total brightness is low due to low power of the pixel unit with the large resistance value in the display panel, so that the brightness of the pixel unit can be increased by reducing the area of the pixel unit with the large resistance value, the problem of uneven display brightness of the display panel can be reduced to a certain extent, and the display effect of the display panel is improved.
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In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a passive matrix organic electroluminescent diode display panel according to the related art;
fig. 2 is a schematic structural diagram of a display panel according to an exemplary embodiment of the present application;
fig. 3 is a schematic structural diagram of a display panel according to an exemplary embodiment of the present application;
fig. 4 is a schematic structural diagram of a display panel according to an exemplary embodiment of the present application.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but 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 application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
A Passive matrix Organic Light-Emitting Diode (PMOLED) is one of the OLEDs, and each pixel unit in a pixel unit array is illuminated in a scanning manner, so that the structure is simple and the manufacturing cost can be effectively reduced.
In the related art, the PMOLED display module includes a display array formed by N pixel units in m rows and N columns, each column of the display array is connected to a first electrode, and each row of the display array is connected to a second electrode. Fig. 1 is a schematic structural diagram of a PMOLED display panel in the related art. As shown in fig. 1, a PMOLED display panel 100 in the related art includes a display array (2 rows and 8 columns of pixel units are exemplarily illustrated in fig. 1) formed by N pixel units 101 in m rows and N columns, N first electrodes 110, and m second electrodes 120 (1 first electrode and 2 second electrodes are exemplarily illustrated in fig. 1), where N, m, and N are positive integers, N ≧ 1, m ≧ 1, and m × N ═ N.
Each row of pixel units in the display array is connected with a first electrode 110; each row of pixel cells in the display array is connected to a second electrode 120. Namely, the pixel units in the ith row are connected with the ith first electrode; the jth row of pixel units is connected with the jth second electrode, wherein i and j are positive integers, i is more than or equal to 1 and less than or equal to m, and j is more than or equal to 1 and less than or equal to n.
The first electrode 110 is a cathode electrode of the PMOLED display panel 100, and the second electrode 120 is an anode electrode of the PMOLED display panel 100. With pixel units R in ith row and jth columnijFor example, when the pixel unit RijWhen the pixel needs to be lighted, current flows into the pixel unit R from the jth first electrodeijAnd flows out from the ports at the two sides of the ith second electrode.
The PMOLED display panel is generally obtained by Deposition (Deposition) of a vacuum coating device, and since the vacuum coating device has Uniformity (Uniformity) problem in the process of manufacturing the PMOLED display panel, for example, pixel units in different areas of a display array on the PMOLED display panel may have different thicknesses, which results in different resistance values of the pixel units in the different areas. For example, as shown in fig. 1, the resistance value of the pixel unit 1011 in the ith row and the jth column is different from the resistance value of the pixel unit 1012 in the (i + 1) th row and the jth column. Since each pixel unit in the PMOLED display panel is connected in parallel, under the condition that the driving voltage applied to each pixel unit is the same, the display brightness of the pixel units with different resistance values is different, and the display brightness of the PMOLED display panel is not uniform.
Fig. 2 is a schematic structural diagram of a display panel according to an exemplary embodiment of the present application. As shown in fig. 2, the display panel 200 includes a display array (2 rows and 8 columns of pixel units are exemplarily illustrated in fig. 2) composed of N first electrodes 210, m second electrodes 220 (1 first electrode and 2 second electrodes are exemplarily illustrated in fig. 2), and N pixel units 201 in m rows and N columns, where m, N, and N are positive integers, m ≧ 1, N ≧ 2, and m × N ═ N. Optionally, the display panel is a PMOLED display panel.
As shown in fig. 2, the pixel units in the p-th column in the display array are connected with the p-th first electrode in the n first electrodes; the q-th row of pixel units in the display array is connected with the q-th second electrode in the m second electrodes, p and q are positive integers, p is more than or equal to 1 and less than or equal to n, and q is more than or equal to 1 and less than or equal to m.
At least two pixel units with different resistance values exist in the display array, and the area of the pixel unit with the large resistance value is smaller than that of the pixel unit with the small resistance value for any two of the at least two pixel units.
As shown in fig. 2, a pixel unit 2011 and a pixel unit 2012 with different areas exist in the display array for illustration. The resistance of the pixel unit 2011 is greater than the resistance of the pixel unit 2012, and the area of the pixel unit 2011 is smaller than the area of the pixel unit 2012.
For the pixel unit, under the condition that other parameters are not changed, the larger the area is, the lower the brightness is, because the resistance value of the pixel unit 2011 is greater than that of the pixel unit 2012, and the pixel unit 2011 and the pixel unit 2012 are connected in parallel in the electrical connection, if the areas of the pixel unit 2011 and the pixel unit 2012 are the same, the display brightness of the pixel unit 2011 is smaller than that of the pixel unit 2012 under the same voltage pulse. In order to solve the problem, in the embodiment of the present application, the area of the pixel unit 2011 is set to be smaller than the area of the pixel unit 2012, so that the luminance of the pixel unit 2011 is closer to the luminance of the pixel unit 2012, and the problem of uneven display luminance of the display panel is reduced to a certain extent.
To sum up, in the embodiment of the present application, at least two pixel units with different areas are arranged in the display panel, and in the pixel units with the different areas, the area of the pixel unit with the large resistance value is smaller than the pixel unit with the small resistance value, because the power of the pixel unit with the large resistance value in the display panel is lower, the total brightness is lower, and therefore, the brightness of the pixel unit can be increased by reducing the area of the pixel unit with the large resistance value, so that the problem of uneven display brightness of the display panel can be reduced to a certain extent, and the display effect of the display panel is improved.
Fig. 3 is a schematic structural diagram of a display panel according to an exemplary embodiment of the present application. As shown in fig. 3, the display panel 300 includes a display array (2 rows and 8 columns of pixel units are exemplarily illustrated in fig. 3) formed by N first electrodes 310, m second electrodes 320 (1 first electrode and 2 second electrodes are exemplarily illustrated in fig. 3), and N pixel units 301 in m rows and N columns, where m, N, and N are positive integers, m ≧ 1, N ≧ 2, and m × N ═ N.
As shown in fig. 3, the pixel units in the p-th column in the display array are connected with the p-th first electrode in the n first electrodes; the q-th row of pixel units in the display array is connected with the q-th second electrode in the m second electrodes, p and q are positive integers, p is more than or equal to 1 and less than or equal to n, and q is more than or equal to 1 and less than or equal to m.
Illustratively, the first electrode is a cathode electrode of the display panel. In the deposition preparation process of the display panel, in some cases, the resistance values of different pixel units are different along the column direction, and if the area of each pixel unit in the display panel is the same, the brightness of each row of pixel units in the display panel is different in the display process, which is called a "display zebra" phenomenon, so that the display effect of the display panel is poor.
In view of the above technical problems, in the n rows of pixel units in the embodiment of the present application, at least one row of pixel units has at least two pixel units with different resistance values, and for any two pixel units in the at least two pixel units with different resistance values, the area of the pixel unit with a large resistance value is smaller than that of the pixel unit with a small resistance value, so that the problem of uneven display brightness of the display panel can be reduced to a certain extent.
Alternatively, as shown in fig. 3, for the ith pixel unit 3011 and the jth pixel unit 3012 in the xth column of pixel units, if the resistance value of the ith pixel unit 3011 is RiThe resistance value of the jth pixel unit 3012 is RjArea S of i-th pixel unit 3011iAnd area S of the jth pixel unit 3012jThe following formula is satisfied:
Figure BDA0002068664580000081
wherein x, i and j are positive integers, x is more than or equal to 1 and less than or equal to n, i is more than or equal to 1 and less than or equal to m, and j is more than or equal to 1 and less than or equal to m.
The luminance of the pixel unit satisfies the following formula:
Figure BDA0002068664580000082
where Nit represents the brightness of the pixel unit, LM represents the lumens of the pixel unit, and S represents the area of the pixel unit. Since the lumens, and pi, of each pixel element are constant, the brightness is inversely proportional to the area of the pixel element for each pixel element. Therefore, in the embodiment of the present application, the ratio of the areas between the pixel units with different resistance values in one row of the pixel units is set as the inverse ratio of the resistance values, so that the luminance of the pixel units with different resistance values can be approximate to a certain extent.
To sum up, in the embodiment of the present application, at least one row of pixel units is arranged in n rows of pixel units in the display panel, so that the two pixel units with different resistance values are satisfied, the area of the pixel unit with a large resistance value is smaller than the pixel unit with a small resistance value, and the total brightness is lower due to the lower power of the pixel unit with a large resistance value in the display panel, so that the brightness of the pixel unit can be increased by reducing the area of the pixel unit with a large resistance value, thereby the problem of uneven display brightness of the display panel can be reduced to a certain extent, and the display effect of the display panel is improved.
Optionally, in this embodiment of the application, the ratio of the areas between the pixel units with different resistance values in one row of the pixel units is set as the inverse ratio of the resistance values, so that the brightness of the pixel units with different resistance values can be close to each other to some extent, the problem of uneven display brightness of the display panel can be reduced to some extent, and the display effect of the display panel is improved.
Fig. 4 is a schematic structural diagram illustrating a display panel according to an exemplary embodiment of the present application. As shown in fig. 4, the display panel 400 includes a display array (2 rows and 4 columns of pixel units are exemplarily illustrated in fig. 1) composed of N first electrodes 410, m second electrodes 420 (1 first electrode and 2 second electrodes are exemplarily illustrated in fig. 1), and N pixel units 401 in m rows and N columns, where m, N, and N are positive integers, m ≧ 1, N ≧ 2, and m × N ═ N. The first electrode 410 is a cathode electrode of the display panel 400, and the second electrode 420 is an anode electrode of the display panel 400.
As shown in fig. 4, the pixel units in the p-th column in the display array are connected with the p-th first electrode in the n first electrodes; the q-th row of pixel units in the display array is connected with the q-th second electrode in the m second electrodes, p and q are positive integers, p is more than or equal to 1 and less than or equal to n, and q is more than or equal to 1 and less than or equal to m.
In the deposition preparation process of the display panel, in some cases, the resistance values of different pixel units are different along the direction of the columns; meanwhile, along the direction of the row, the resistance values of different pixel units are different, and if the area of each pixel unit in the display panel is the same, the brightness of each pixel unit in the display panel is different in the display process, so that the display effect of the display panel is poor.
In view of the above technical problem, in the n rows of pixel units in the embodiment of the present application, at least one row of pixel units has at least two pixel units with different resistance values, and for any two pixel units in the at least two pixel units with different resistance values, the area of the pixel unit with a large resistance value is smaller than that of the pixel unit with a small resistance value; in the m rows of pixel units in the embodiment of the application, at least two pixel units with different resistance values exist in at least one row of pixel units, and for any two pixel units in at least two pixel units with different resistance values, the area of the pixel unit with a large resistance value is smaller than that of the pixel unit with a small resistance value, so that the problem of uneven display brightness of the display panel can be reduced to a certain extent.
Optionally, for the ith pixel unit 4011 and the jth pixel unit 4012 in the xth column of pixel units, if the resistance value of the ith pixel unit 4011 is RiThe resistance value of the jth pixel unit 4012 is RjArea S of ith pixel cell 4011iAnd area S of the jth pixel cell 4012jThe following formula is satisfied:
Figure BDA0002068664580000101
wherein x, i and j are positive integers, x is more than or equal to 1 and less than or equal to n, i is more than or equal to 1 and less than or equal to m, and j is more than or equal to 1 and less than or equal to m. Optionally, the ith pixel unit and the jth pixel unit are two adjacent pixel units in the xth column of pixel units.
Optionally, for the kth pixel unit 4013 and the l pixel unit 4014 in the y row of pixel units, if the resistance value of the kth pixel unit 4013 is RkThe resistance value of the ith pixel unit 4014 is RlArea S of kth pixel cell 4013kAnd area S of the l-th pixel unit 4014lThe following formula is satisfied:
Figure BDA0002068664580000102
wherein y, k and l are positive integers, y is more than or equal to 1 and less than or equal to m, k is more than or equal to 1 and less than or equal to n, and l is more than or equal to 1 and less than or equal to n. Optionally, the kth pixel unit and the l-th pixel unit are two adjacent pixel units in the y-th row of pixel units.
In the embodiment of the present application, because the area of each pixel unit is different, if the pixel unit is set to be rectangular, each row of pixel units and/or each column of pixel units are jagged, so that the display effect of the display panel is poor; meanwhile, in some cases, the resistance value gradually decreases along the first direction in which the rows are located for the z-th row of pixel cells in the m-th row of pixel cells, and gradually increases along the first direction for the z + 1-th row of pixel cells.
In view of the above technical problem, in the embodiment of the present application, each pixel unit is set to be trapezoidal. Specifically, for the z-th row of pixel units, along the first direction (the direction shown by the arrow 402 in fig. 4), the adjacent s-th pixel unit and t-th pixel unit are arranged, the upper bottom of the s-th pixel unit is equal to the lower bottom of the t-th pixel unit, z, i and j are positive integers, z is greater than or equal to 1 and less than or equal to m, s is greater than or equal to 1 and less than or equal to n, and t is greater than or equal to 1 and less than or equal to n.
For the z +1 th row of pixel units, along the first direction, the adjacent u-th pixel unit and the adjacent v-th pixel unit have the same bottom as the upper bottom of the v-th pixel unit, u and v are positive integers, u is greater than or equal to 1 and less than or equal to n, and v is greater than or equal to 1 and less than or equal to n.
To sum up, in this application embodiment, set up the area ratio between the different pixel cell of resistance value into the inverse ratio of resistance value through in at least one row of pixel cell, can make the luminance of the different pixel cell of resistance value approach to a certain extent to can reduce the inhomogeneous problem of display panel display luminance to a certain extent, improve display panel's display effect.
Optionally, in this embodiment of the application, by setting the ratio of the areas between the pixel units with different resistance values in at least one row of pixel units to the inverse ratio of the resistance values, the brightness of the pixel units with different resistance values can be made to approach to a certain extent, so that the problem of uneven display brightness of the display panel can be reduced to a certain extent, and the display effect of the display panel is improved.
Optionally, in the embodiment of the present application, each pixel unit is set to be trapezoid, and in two adjacent trapezoids in each row of pixel units, an upper bottom of a pixel unit with a larger area is equal to a lower bottom of a pixel unit with a smaller area, so that a problem of poor display effect caused by a jagged edge of a pixel unit array is solved, and the display effect of the display panel is improved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this invention are intended to be covered by the scope of the invention as expressed herein.

Claims (10)

1. A display panel, comprising:
n first electrodes, wherein n is a positive integer and is not less than 2;
the display array comprises m rows and N columns of N pixel units, wherein at least two pixel units with different resistance values exist in the display array, the area of the pixel unit with a large resistance value is smaller than that of the pixel unit with a small resistance value for any two pixel units with different resistance values caused by thickness factors in the at least two pixel units, m is a positive integer and is not less than 1, and m × N is N;
the pixel units in the p-th row in the display array are connected with the p-th first electrode in the n first electrodes, p is a positive integer, and p is more than or equal to 1 and less than or equal to n;
m second electrodes;
and the q-th row of pixel units in the display array is connected with the q-th second electrode in the m second electrodes, q is a positive integer, and q is more than or equal to 1 and less than or equal to m.
2. The display panel according to claim 1, wherein the first electrode is a cathode electrode of the display panel;
at least one row of pixel units in the display array has at least two pixel units with different resistance values, and for any two pixel units in the at least two pixel units with different resistance values, the area of the pixel unit with a large resistance value is smaller than that of the pixel unit with a small resistance value.
3. The display panel according to claim 2, wherein the following formula is satisfied for an ith pixel cell and a jth pixel cell having different resistance values in the xth column of pixel cells:
Figure FDA0002950664920000011
wherein R isiRepresents the resistance value, R, of the ith pixel celljRepresents the resistance value, S, of the jth pixel celliDenotes the area of the ith pixel cell, SjThe area of the jth pixel unit is expressed, x, i and j are positive integers, x is more than or equal to 1 and less than or equal to n, i is more than or equal to 1 and less than or equal to m, and j is more than or equal to 1 and less than or equal to m.
4. The display panel according to claim 3, wherein the ith pixel unit and the jth pixel unit are two adjacent pixel units in the xth column of pixel units.
5. The display panel according to any one of claims 1 to 4, wherein the second electrode is an anode electrode of the display panel;
at least two pixel units with different resistance values exist in at least one row of pixel units in the display array, and for any two pixel units in the at least two pixel units with different resistance values, the area of the pixel unit with a large resistance value is smaller than that of the pixel unit with a small resistance value.
6. The display panel according to claim 5, wherein the following formula is satisfied for a kth pixel cell and an l pixel cell having different resistance values in a y-th row of pixel cells:
Figure FDA0002950664920000021
wherein R iskRepresents the resistance value, R, of the kth pixel celllRepresents the resistance value of the first pixel unit, SkDenotes the area of the kth pixel cell, SlThe area of the first pixel unit is expressed, y, k and l are positive integers, y is more than or equal to 1 and less than or equal to m, k is more than or equal to 1 and less than or equal to n, and l is more than or equal to 1 and less than or equal to n.
7. The display panel according to claim 6, wherein the kth pixel unit and the l pixel unit are two adjacent pixel units in the y row of pixel units.
8. The display panel according to any one of claims 1 to 7, wherein each of the N pixel units has a trapezoidal shape;
for the pixel units in the z-th row, along the first direction of the row where the pixel units in the z-th row are located, the adjacent s-th pixel unit and t-th pixel unit are located, the upper bottom of the s-th pixel unit is equal to the lower bottom of the t-th pixel unit, z, s and t are positive integers, z is greater than or equal to 1 and less than or equal to m, s is greater than or equal to 1 and less than or equal to n, and t is greater than or equal to 1 and less than or equal to n.
9. The display panel of claim 8, wherein for the z +1 th row of pixel units, along the first direction, the adjacent u-th pixel unit and the adjacent v-th pixel unit have a lower base equal to an upper base of the v-th pixel unit, u and v are positive integers, u is greater than or equal to 1 and less than or equal to n, and v is greater than or equal to 1 and less than or equal to n.
10. The display panel of any one of claims 1 to 9, wherein the display panel is a passive matrix organic electroluminescent diode display panel.
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CN102157542A (en) * 2010-12-17 2011-08-17 四川虹视显示技术有限公司 PMOLED scanning electrode wiring structure
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
CN107818993A (en) * 2017-11-30 2018-03-20 武汉天马微电子有限公司 A kind of display panel and display device

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