CN107887399B - Array substrate, organic light-emitting display panel and organic light-emitting display device - Google Patents
Array substrate, organic light-emitting display panel and organic light-emitting display device Download PDFInfo
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- CN107887399B CN107887399B CN201711242568.4A CN201711242568A CN107887399B CN 107887399 B CN107887399 B CN 107887399B CN 201711242568 A CN201711242568 A CN 201711242568A CN 107887399 B CN107887399 B CN 107887399B
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- 239000000758 substrate Substances 0.000 title claims abstract description 113
- 239000004020 conductor Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 22
- 230000008054 signal transmission Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000013039 cover film Substances 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
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- 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
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- H10K59/12—Active-matrix OLED [AMOLED] displays
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Abstract
The invention provides an array substrate, an organic light emitting display panel and an organic light emitting display device, wherein the array substrate comprises: the display panel comprises a substrate base plate, a display area and a display control unit, wherein the substrate base plate comprises a display area, the display area comprises at least one first area and at least one second area, and the length of the first area along the second direction is greater than that of the second area along the second direction; and a power supply voltage signal line layer formed on the substrate, the power supply voltage signal line layer including at least one first power supply voltage signal line and at least one second power supply voltage signal line; the absolute value of the difference between the resistance value of the first power supply voltage signal line and the resistance value of the second power supply voltage signal line is greater than or equal to 0 and less than or equal to 2% of the resistance value of the first power supply voltage signal line. Compared with the existing array substrate, the array substrate provided by the invention can improve the display uniformity of the display panel, and further improve the display effect of the display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to an array substrate, an organic light-emitting display panel and an organic light-emitting display device.
Background
As the size of the mobile phone screen gradually increases, the screen ratio becomes an important index for measuring the performance of the mobile phone. The screen occupation ratio refers to the ratio of the display area of the mobile phone to the total area of the screen. The higher screen ratio makes the appearance of the mobile phone more beautiful on one hand, and on the other hand can bring better impression experience to the user.
However, at present, components such as a camera or a sensor are often arranged in a mobile phone, in order to enable the camera or the sensor to be in an optimal working state, a part of area needs to be reserved in a display panel of the mobile phone for placing the camera or the sensor, and then a display area of the display panel is not a traditional rectangle, and a local edge of the display area is often in a special shape. The appearance of the irregular edge can deteriorate the display uniformity of the display panel, and the user experience is affected.
Disclosure of Invention
The invention provides an array substrate, an organic light-emitting display panel and an organic light-emitting display device, which are used for improving the display uniformity of the display panel and further improving the display effect of the display panel.
In a first aspect, an embodiment of the present invention provides an array substrate, including:
the display panel comprises a substrate base plate, a display area and a display control unit, wherein the substrate base plate comprises a display area, the display area comprises at least one first area and at least one second area, the first area and the second area are sequentially arranged along a first direction, and the length of the first area along a second direction is greater than that of the second area along the second direction;
and a power supply voltage signal line layer formed on the substrate, the power supply voltage signal line layer including at least one first power supply voltage signal line extending in the second direction and at least one second power supply voltage signal line extending in the second direction, a vertical projection of the first power supply voltage signal line on the substrate being partially overlapped with the first region only, a vertical projection of the second power supply voltage signal line on the substrate being partially overlapped with the second region only;
wherein an absolute value of a difference between the resistance value of the first power supply voltage signal line and the resistance value of the second power supply voltage signal line is greater than or equal to 0 and less than or equal to 2% of the resistance value of the first power supply voltage signal line, and the first direction crosses the second direction.
In a second aspect, an embodiment of the present invention further provides an organic light emitting display panel, which includes the array substrate provided in the first aspect.
In a third aspect, embodiments of the present invention also provide an organic light emitting display device including the organic light emitting display panel provided in the second aspect.
The display area is divided into a first area and a second area according to the length along a second direction, the power supply voltage signal line layer comprises at least one first power supply voltage signal line extending along the second direction and at least one second power supply voltage signal line extending along the second direction, the vertical projection of the first power supply voltage signal line on the substrate is only partially overlapped with the first area, the vertical projection of the second power supply voltage signal line on the substrate is only partially overlapped with the second area, the absolute value of the difference between the resistance value of the first power supply voltage signal line and the resistance value of the second power supply voltage signal line is greater than or equal to 0 and less than or equal to 2% of the resistance value of the first power supply voltage signal line, and the essence of the invention is that the voltage drop difference of the power supply voltage signal lines in different areas is reduced, the problem of among the current display panel, because of containing special-shaped edge, the display panel that causes shows the homogeneity variation is solved, the purpose that has improved display panel and has shown the homogeneity, and then improve display panel's display effect has been reached.
Drawings
Fig. 1 is a schematic structural diagram of an array substrate according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the array substrate of FIG. 1 along the sectional line 0-0';
fig. 3 is a schematic diagram illustrating a connection relationship between a PVDD signal line and an organic light emitting unit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another array substrate according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of the array substrate of FIG. 4 along the section line A-A';
FIG. 6 is a cross-sectional view of the array substrate of FIG. 4 along the section line B-B';
fig. 7 is a schematic shape diagram of a second power voltage signal line on a bottom surface of the groove of the array substrate according to the embodiment of the invention;
fig. 8 is a schematic view illustrating another shape of a second power voltage signal line on a bottom surface of a groove of an array substrate according to an embodiment of the invention;
fig. 9 is a schematic view of another shape of a second power voltage signal line on the bottom surface of the groove of the array substrate according to the embodiment of the invention;
fig. 10 is a schematic structural diagram of another array substrate according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another array substrate according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of another array substrate according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of another array substrate according to an embodiment of the present invention;
FIG. 14 is a cross-sectional view of the array substrate of FIG. 13 along the section line C-C';
fig. 15 is a schematic structural diagram of another array substrate according to an embodiment of the invention;
fig. 16 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention;
fig. 17 is a schematic structural diagram of an organic light emitting display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the 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.
In the existing display device, such as a mobile phone, components such as a front camera, a photosensitive/infrared sensor and the like are often arranged. In actual design, if components such as a front-facing camera and a photosensitive/infrared sensor are shielded by a signal line for realizing image display, signal acquisition cannot be normally carried out. I.e. these components will not function properly. Therefore, in the existing array substrate, part of the substrate and the related film layer corresponding to the arrangement position of the front camera, the photosensitive/infrared sensor and other components are usually dug out, so that the array substrate is in a concave shape. In order to make the display panel including the array substrate have a high screen ratio, the display area in the array substrate is also usually arranged to be in a concave shape. Therefore, the lengths of the power supply voltage signal wires at different positions in the display panel are different, the voltage drops of the power supply voltage signal wires at different positions are different, and finally the display panel comprising the array substrate has the problems of poor display uniformity and poor display effect.
Fig. 1 is a schematic structural diagram of an array substrate according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a cross-section of the array substrate along a section line 0-0' in fig. 1, referring to fig. 1 and fig. 2, an array substrate 10 according to an embodiment of the present invention includes: a substrate 100, the substrate 100 including a display region 110, the display region 110 including at least one first region 111 and at least one second region 112 (the boundary between the first region 111 and the second region 112 is exemplarily represented by a dotted line in fig. 1), the first region 111 and the second region 112 being sequentially arranged along a first direction (i.e., an X-axis direction in fig. 1), a length H1 of the first region 111 along a second direction (i.e., a Y-axis direction in fig. 1) being greater than a length H2 of the second region 112 along the second direction (i.e., a Y-axis direction in fig. 1); and a power supply voltage signal line layer 113 formed on the substrate base plate 100, the power supply voltage signal line layer 113 including at least one first power supply voltage signal line 114 extending in a second direction (i.e., Y-axis direction in fig. 1) and at least one second power supply voltage signal line 115 extending in the second direction (i.e., Y-axis direction in fig. 1), a vertical projection of the first power supply voltage signal line 114 on the substrate base plate 100 partially overlapping only the first region 111, and a vertical projection of the second power supply voltage signal line 115 on the substrate base plate 100 partially overlapping only the second region 112; the absolute value of the difference between the resistance of the first power voltage signal line 114 and the resistance of the second power voltage signal line 115 is greater than or equal to 0 and less than or equal to 2% of the resistance of the first power voltage signal line 114, and the first direction (i.e., the X-axis direction in fig. 1) intersects the second direction (i.e., the Y-axis direction in fig. 1).
The display area is divided into a first area and a second area according to the length along a second direction, the power supply voltage signal line layer comprises at least one first power supply voltage signal line extending along the second direction and at least one second power supply voltage signal line extending along the second direction, the vertical projection of the first power supply voltage signal line on the substrate is only partially overlapped with the first area, the vertical projection of the second power supply voltage signal line on the substrate is only partially overlapped with the second area, the absolute value of the difference between the resistance value of the first power supply voltage signal line and the resistance value of the second power supply voltage signal line is greater than or equal to 0 and less than or equal to 2% of the resistance value of the first power supply voltage signal line, and the essence of the invention is that the voltage drop difference of the power supply voltage signal lines in different areas is reduced, the problem of among the current display panel, because of containing special-shaped edge, the display panel that causes shows the homogeneity variation is solved, the purpose that has improved display panel and has shown the homogeneity, and then improve display panel's display effect has been reached.
In the above technical solution, the first power voltage signal line 114 and the second power voltage signal line 115 may be signal lines or the like that affect the light emitting brightness of the light emitting unit. Illustratively, the first power voltage signal line 114 and the second power voltage signal line 115 are PVDD lines in an organic light emitting display panel for providing PVDD power voltage signals to organic light emitting cells in the organic light emitting display panel.
Exemplarily, fig. 3 is a schematic diagram of a connection relationship between a PVDD line and an organic light emitting unit according to an embodiment of the present invention, as shown in fig. 3, an array substrate of an organic light emitting display panel includes a plurality of organic light emitting units 200, a PVDD line, a scan driver, a scan line 201, a data driver, and a data line 202, and the organic light emitting unit 200 includes a first port a, a second port B, and a third port C. Wherein, the PVDD line is electrically connected to the first port of each organic light emitting cell 200 and provides a power voltage signal to each organic light emitting cell 200; the scan driver is electrically connected to the second port B of each organic light emitting unit 200 through the scan line 201 to provide a scan signal to each organic light emitting unit 200; the data driver is electrically connected to the third port C of each organic light emitting cell 200 through the data line 202, and provides a data signal to each organic light emitting cell 200, and the power voltage signal, the scan signal and the data signal work together to operate the organic light emitting cell 200. The PVDD line may be the first power supply voltage signal line 114 or the second power supply voltage signal line 115 in the above-described embodiments. It should be understood that, in fig. 3, the circuit structure in the organic light emitting unit 200 is only an example, and should not be construed as a limitation to the embodiment of the present invention, and in other alternative embodiments of the present invention, other circuit structures may be adopted as long as the organic light emitting unit realizes the display.
It should be noted that the organic light emitting unit provided with the power supply voltage signal by the PVDD line according to the embodiment of the present invention may further include an anode, a hole transport layer, an electron blocking layer, an organic light emitting layer, a hole blocking layer, an electron transport layer, a cathode, and other film layers to form an organic light emitting diode, which is not described in detail herein.
It should be noted that fig. 1 only exemplarily shows two first regions 111 and one second region 112, and the arrangement manner of the first regions 111 and the second regions 112 along the first direction X is: the array substrate includes a first region 111, a second region 112, and a first region 111, but is not limited to the array substrate of the present invention. In other embodiments, the number and arrangement of the first regions 111 and the second regions 112 may be designed according to actual requirements.
Only 4 first power supply voltage signal lines 114 and 3 second power supply voltage signal lines 115 are shown in fig. 1 and 2, which are only a specific example of the present invention and do not limit the array substrate of the present invention. In other embodiments, the number of the first power supply voltage signal lines 114 and the second power supply voltage signal lines 115 may be set according to actual requirements.
The resistance of the signal lines (including the first power voltage signal line 114 and the second power voltage signal line 115) is calculated by the following formula:
rho is the resistivity of the material selected for the signal line and is determined by the material type, l is the effective length of the signal transmission of the signal line, and S is the area of the signal line perpendicular to the signal transmission direction. In consideration of practical application, the thickness of each signal line on the array substrate is generally set to be the same for the simplicity of the manufacturing process, and therefore, the size of S depends on the width of the signal line.
Therefore, in order to enable the absolute value of the difference between the resistance values of the first power supply voltage signal line and the second power supply voltage signal line to be greater than or equal to 0 and less than or equal to 2% of the resistance value of the first power supply voltage signal line, the signal line can be manufactured by selecting different materials, and the effective length of signal transmission of the signal line or the width of the signal line can be adjusted.
Considering that the first power voltage signal line and the second power voltage signal line made of different materials may complicate the manufacturing process of the array substrate, increase the manufacturing cost of the array substrate, and prolong the production cycle of the array substrate, which is obviously not desired by manufacturers. Therefore, the following mainly takes the adjustment of the effective length of signal transmission of the signal line or the width of the signal line as an example to describe the technical solution provided by the present invention in detail.
Fig. 4 is a schematic structural view of another array substrate according to an embodiment of the present invention, fig. 5 is a schematic cross-sectional view of the array substrate of fig. 4 along a sectional line a-a ', and fig. 6 is a schematic cross-sectional view of the array substrate of fig. 4 along a sectional line B-B', referring to fig. 4, 5 and 6, the array substrate 10 according to an embodiment of the present invention further includes an insulating layer 121; the insulating layer 121 is located between the substrate base plate 100 and the power supply voltage signal line layer; the substrate base 100 further includes a non-display region 120 surrounding the display region 110; at least one groove 122 is formed in the insulating layer 113, the groove 122 is located in the non-display region 120, and the groove 122 includes a bottom surface 1221 and an inner sidewall 1222 surrounding the bottom surface 1221; at least a portion of the second power voltage signal line 115 is located on the inner sidewall 1222 and the bottom surface 1221 of the recess 122.
Compared with the solution without the groove, in the solution of fig. 5, by disposing the second power voltage signal line 115 on the inner sidewall 1222 of the groove 122, the effective length of the second power voltage signal line 115 for signal transmission is substantially extended, so that the effective length of the second power voltage signal line 115 for signal transmission is equal to or equivalent to the effective length of the first power voltage signal line 114 for signal transmission. The arrangement reduces the voltage drop difference between the second power voltage signal line 115 and the first power voltage signal line 114, and improves the display uniformity of the display panel. In addition, the above technical scheme sets up recess 122 in non-display area 120, can realize when the effective length of the signal transmission of extension second power supply voltage signal line 115, does not occupy the area in display area, can not increase the degree of difficulty of laying of each rete in display area, can not cause the influence to display panel's display effect.
It should be noted that fig. 4, 5 and 6 only illustrate one groove by way of example, but do not limit the array substrate of the present invention. In other embodiments, the number and shape of the grooves may be set according to actual requirements.
On the basis of the above technical solution, the shape of the portion of the second power voltage signal line 115 on the bottom surface of the groove may be a bow shape, a zigzag shape, or other shapes. Illustratively, in fig. 7, the portion of the second power supply voltage signal line 115 on the groove bottom surface 1221 is in the shape of a bow. In fig. 8 and 9, the portion of the second power supply voltage signal line 115 on the bottom surface 1221 of the groove has a zigzag shape. Compared with the linear design, the second power supply voltage signal line 115 is arranged in a bow shape, a Z shape or other shapes, the effective length of signal transmission of the second power supply voltage signal line 115 can be prolonged as much as possible in a groove with limited size, and the space of the groove is fully utilized; meanwhile, the design can reduce the occupied area of the groove in the non-display area to a certain extent, and the narrow frame design is favorably realized.
Fig. 10 is a schematic structural diagram of another array substrate according to an embodiment of the present invention, and referring to fig. 10, the array substrate 10 further includes a bonding region 123; the groove 122 is located between the binding area 123 and the display area 110; the bonding area 123 is bonded with a flexible wiring board (not shown in fig. 10).
The flexible circuit board is bound in the binding area 123, and can be bent and arranged on one side of the array substrate opposite to the light emitting surface by utilizing the flexibility of the flexible circuit board, so that the area of the light emitting surface of the array substrate is avoided being occupied, and the screen occupation ratio of the display panel is further increased.
With continued reference to fig. 10, in the array substrate 10 provided in the embodiment of the present invention, the bonding region 123 includes at least one connection pin 124; each of the first power supply voltage signal lines 114 and each of the second power supply voltage signal lines 115 are electrically connected to their corresponding connection pins 124.
The connection pin 124 is used to electrically connect each first power voltage signal line 114 and each second power voltage signal line 115 to the flexible circuit board in the bonding area 123, and the power voltage signal output by the flexible circuit board supplies power to each light emitting unit through each first power voltage signal line and each second power voltage signal line.
It should be noted that fig. 10 only shows 7 connection pins 124 by way of example, and each of the first power supply voltage signal lines 114 and each of the second power supply voltage signal lines 115 are disposed in one-to-one correspondence with each of the connection pins 124, which is only a specific example of the present invention and is not a limitation to the array substrate of the present invention. In other embodiments, the number of the connection pins 124 and the corresponding relationship between each connection pin 124 and the first power voltage signal line and the second power voltage signal line may be designed according to actual requirements.
Considering that in practice, the magnitude of the power voltage signals transmitted by the first power voltage signal line 114 and the second power voltage signal line 115 is often the same, optionally, the number of the connection pins 124 is set to be smaller than the sum of the number of the first power voltage signal line 114 and the number of the second power voltage signal line 115, so that the number of the connection pins 124 on the flexible circuit board corresponding to the number of the connection pins can be effectively reduced, and the manufacturing difficulty and the manufacturing cost of the flexible circuit board are reduced.
Fig. 11 is a schematic structural diagram of another array substrate according to an embodiment of the present invention, referring to fig. 11, the array substrate 10 further includes at least one third connection wire 116 and at least one fourth connection wire 117; the third connecting wire 116 extends along the second direction (Y-axis direction in fig. 11), one end of the third connecting wire 116 is electrically connected to the connecting pin 124 in the bonding region 123, and the other end is electrically connected to the fourth connecting wire 117; the fourth connecting wire 117 extends in the first direction (X-axis direction in fig. 11) to electrically connect the third connecting wire 116 with the first power supply voltage signal line 114 and/or the second power supply voltage signal line 115. The advantage of this arrangement is that it avoids the phenomenon that the signal lines (including the first power voltage signal line 114 and the second power voltage signal line 115) are too dense near the connection pin 124 because a plurality of signal lines (including the first power voltage signal line 114 and the second power voltage signal line 115) are directly connected to the same connection pin 124, so as to prevent the undesirable phenomenon that the array substrate is burned due to the temperature of the dense signal lines (including the first power voltage signal line 114 and the second power voltage signal line 115) from being too high. In addition, the third connecting wire 116 and the fourth connecting wire 117 are arranged in this way, the number of wires in the non-display area can be reduced to a certain extent, the area of the non-display area occupied by the wires is reduced, and the narrow-frame design is facilitated.
Fig. 12 is a schematic structural diagram of another array substrate according to an embodiment of the present invention, and referring to fig. 12, the shape of the fourth connection wire 117 is a broken line or an arc (in fig. 12, the shape of the fourth connection wire 117 is an arc for example); the fourth connecting wire 117 includes a convex portion whose vertex is a distance H3 from the binding region 123 smaller than a distance H4 from the boundary line between the display region 110 and the non-display region 120 adjacent thereto. The essence of this arrangement is to make the fourth connecting wire 117 sufficiently close to the bonding region 123, so as to reserve a sufficient area between the fourth connecting wire 117 and the display region for disposing the groove 122, so as to ensure that the effective signal transmission length of the second power voltage signal line 115 can be sufficiently increased, thereby sufficiently reducing the voltage drop difference between the second power voltage signal line 115 and the first power voltage signal line 114, and improving the display uniformity of the display panel.
According to the above analysis, the resistance of the signal line is inversely proportional to the width of the signal line on the premise that the effective length of signal transmission is fixed, as determined by the material of the signal line. Accordingly, optionally, on the basis of the above technical solution, the width of the signal line is adjusted. Fig. 13 is a schematic structural diagram of another array substrate according to an embodiment of the present invention, and fig. 14 is a schematic structural diagram of a cross-section of the array substrate of fig. 13 along a section line C-C', referring to fig. 13 and 14, a width W1 of a first power voltage signal line 114 of the array substrate according to an embodiment of the present invention is greater than a width W2 of a second power voltage signal line 115. The advantage of this arrangement is to further reduce the voltage drop difference between the second power voltage signal line 115 and the first power voltage signal line 114, and improve the display uniformity of the display panel.
Fig. 15 is a schematic structural diagram of another array substrate according to an embodiment of the invention. Referring to fig. 15, the array substrate 10 provided by the embodiment of the invention further includes a bonding area 123, and a vertical projection of the second power voltage signal line 115 on the substrate 100 is at least partially located on a side of the display area 110 away from the bonding area 123. Illustratively, the area E is located on a side of the display area 110 away from the binding area 123, and a front camera, a photosensitive/infrared sensor, and other components are disposed in the area E. The vertical projection of the second power supply voltage signal line 115 on the substrate base plate 100 is at least partially located within the region E.
The essence of this arrangement is that, instead of cutting out a portion of the substrate base plate and its associated film layer corresponding to the position where the front camera, the photo sensor/infrared sensor, and other components are disposed, that is, without cutting out the substrate base plate and its associated film layer in the region E, the portion of the substrate base plate and its associated film layer are retained, and the second power supply voltage signal line 115 is extended into the region E. The advantages of such an arrangement include that a link of digging out a part of the substrate and the related film layer is omitted, the manufacturing process of the array substrate is simplified, and the resistance of the second power supply voltage signal line 115 is equivalent to that of the first power supply voltage signal line 114, so that the display uniformity of the display panel is improved.
On the basis of the above technical solution, optionally, the material of the first power supply voltage signal line 114 and the second power supply voltage signal line 115 is a transparent conductive material. Further, the transparent conductive material may be a transparent conductive oxide material such as Indium Tin Oxide (ITO) or fluorine-doped tin oxide (FTO), which is not limited herein, and the transparent conductive material may be selected according to the actual requirement of the array substrate. The first power supply voltage signal wire and the second power supply voltage signal wire are made of transparent conductive materials, so that the length of the power supply voltage signal wire can be prolonged, the acquisition of a front camera, a photosensitive/infrared sensor and other components on signals is not influenced, and all the components can work in the best working state.
Fig. 16 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention, and referring to fig. 16, an organic light emitting display panel 20 according to an embodiment of the present invention includes the array substrate 10 according to the embodiment of the present invention.
In the organic light emitting display panel according to an embodiment of the present invention, the display area is divided into a first area and a second area according to a length along a second direction, the power supply voltage signal line layer includes at least one first power supply voltage signal line extending along the second direction and at least one second power supply voltage signal line extending along the second direction, a vertical projection of the first power supply voltage signal line on the substrate is only partially overlapped with the first area, a vertical projection of the second power supply voltage signal line on the substrate is only partially overlapped with the second area, an absolute value of a difference between a resistance value of the first power supply voltage signal line and a resistance value of the second power supply voltage signal line is greater than or equal to 0 and less than or equal to 2% of the resistance value of the first power supply voltage signal line, and thus, a substantial difference in voltage drop of the power supply voltage signal lines located in different areas is reduced, the problem of among the current display panel, because of containing special-shaped edge, the display panel that causes shows the homogeneity variation is solved, the purpose that has improved display panel and has shown the homogeneity, and then improve display panel's display effect has been reached.
With continued reference to fig. 16, an encapsulation cover or thin film encapsulation layer 11 is included opposite the array substrate 10.
Fig. 17 is a schematic structural diagram of an organic light emitting display device according to an embodiment of the present invention, and referring to fig. 17, an organic light emitting display device 30 according to an embodiment of the present invention includes the organic light emitting display panel 20 according to the above embodiment.
The organic light emitting display device 30 may be one of a mobile phone, a tablet computer, electronic paper, and an electronic photo frame.
In the organic light emitting display device according to an embodiment of the present invention, the display area is divided into a first area and a second area according to a length along a second direction, the power supply voltage signal line layer includes at least one first power supply voltage signal line extending along the second direction and at least one second power supply voltage signal line extending along the second direction, a vertical projection of the first power supply voltage signal line on the substrate is only partially overlapped with the first area, a vertical projection of the second power supply voltage signal line on the substrate is only partially overlapped with the second area, an absolute value of a difference between a resistance value of the first power supply voltage signal line and a resistance value of the second power supply voltage signal line is greater than or equal to 0 and less than or equal to 2% of the resistance value of the first power supply voltage signal line, and thus, a substantial difference in voltage drop of the power supply voltage signal lines located in different areas is reduced, the problem of among the current display panel, because of containing special-shaped edge, cause display panel to show the homogeneity variation is solved, reached and improved display panel and showed the homogeneity, and then improved display panel's display effect's purpose.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (12)
1. An array substrate, comprising:
the display panel comprises a substrate base plate, a display area and a display control unit, wherein the substrate base plate comprises a display area, the display area comprises at least one first area and at least one second area, the first area and the second area are sequentially arranged along a first direction, and the length of the first area along a second direction is greater than that of the second area along the second direction;
and a power supply voltage signal line layer formed on the substrate, the power supply voltage signal line layer including at least one first power supply voltage signal line extending in the second direction and at least one second power supply voltage signal line extending in the second direction, a vertical projection of the first power supply voltage signal line on the substrate being partially overlapped with the first region only, a vertical projection of the second power supply voltage signal line on the substrate being partially overlapped with the second region only;
wherein an absolute value of a difference between the resistance value of the first power supply voltage signal line and the resistance value of the second power supply voltage signal line is greater than or equal to 0 and less than or equal to 2% of the resistance value of the first power supply voltage signal line, and the first direction crosses the second direction.
2. The array substrate of claim 1, further comprising an insulating layer;
the insulating layer is positioned between the substrate base plate and the power supply voltage signal line layer;
the substrate further includes a non-display region surrounding the display region;
at least one groove is formed in the insulating layer; the groove is positioned in the non-display area and comprises a bottom surface and an inner side wall surrounding the bottom surface;
at least a part of the second power voltage signal line is located on the inner side wall and the bottom surface of the groove.
3. The array substrate of claim 2, wherein the portion of the second power voltage signal line on the bottom surface of the recess is in the shape of a bow or a zigzag.
4. The array substrate of claim 2, further comprising a bonding region;
the groove is positioned between the binding area and the display area;
the binding region is bound with a flexible circuit board.
5. The array substrate of claim 2, further comprising a bonding region;
the binding region comprises at least one connection pin; each of the first power supply voltage signal lines and each of the second power supply voltage signal lines are electrically connected to the corresponding connection pin.
6. The array substrate of claim 5, further comprising at least one third connecting wire and at least one fourth connecting wire;
the third connecting lead extends along the second direction, one end of the third connecting lead is electrically connected with the connecting pin in the binding region, and the other end of the third connecting lead is electrically connected with the fourth connecting lead;
the fourth connection wire extends in the first direction to electrically connect the third connection wire with the first power supply voltage signal line and/or the second power supply voltage signal line.
7. The array substrate of claim 6, wherein the fourth connecting wires are in a shape of a broken line or an arc;
the fourth connecting wire includes a convex portion, and a distance from a vertex of the convex portion to the binding region is smaller than a distance from the vertex of the convex portion to an interface line between the display region and the non-display region adjacent thereto.
8. The array substrate of claim 1, wherein the first power voltage signal line has a width greater than a width of the second power voltage signal line.
9. The array substrate of claim 1, further comprising a bonding region;
the vertical projection of the second power supply voltage signal line on the substrate base plate is at least partially positioned on one side of the display area, which is far away from the binding area.
10. The array substrate of claim 9, wherein the first power voltage signal line and the second power voltage signal line are made of a transparent conductive material.
11. An organic light emitting display panel comprising the array substrate according to any one of claims 1 to 10.
12. An organic light-emitting display device comprising the organic light-emitting display panel according to claim 11.
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| CN201711242568.4A CN107887399B (en) | 2017-11-30 | 2017-11-30 | Array substrate, organic light-emitting display panel and organic light-emitting display device |
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| CN201711242568.4A CN107887399B (en) | 2017-11-30 | 2017-11-30 | Array substrate, organic light-emitting display panel and organic light-emitting display device |
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| CN107887399B true CN107887399B (en) | 2020-10-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108682391B (en) * | 2018-05-03 | 2020-10-20 | 昆山国显光电有限公司 | Display panel, display device and preparation method |
| CN109360844A (en) * | 2018-10-23 | 2019-02-19 | 上海天马有机发光显示技术有限公司 | A kind of display panel and a kind of display device |
| CN109713012B (en) * | 2018-12-27 | 2020-11-20 | 厦门天马微电子有限公司 | Display panel and display device |
| CN109976059A (en) * | 2019-04-30 | 2019-07-05 | 武汉天马微电子有限公司 | A kind of display panel and display device |
| CN110265411B (en) * | 2019-06-26 | 2021-10-08 | 厦门天马微电子有限公司 | Display panel and display device |
| CN112490274B (en) * | 2020-11-30 | 2022-08-09 | 武汉天马微电子有限公司 | Display panel and display device |
| CN115512659A (en) * | 2022-09-30 | 2022-12-23 | 厦门天马显示科技有限公司 | Array substrate, display panel and display device |
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