CN111883509A - Display panel - Google Patents
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- CN111883509A CN111883509A CN202010752105.8A CN202010752105A CN111883509A CN 111883509 A CN111883509 A CN 111883509A CN 202010752105 A CN202010752105 A CN 202010752105A CN 111883509 A CN111883509 A CN 111883509A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/50—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor for integrated circuit devices, e.g. power bus, number of leads
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating 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
- G09F9/33—Indicating 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
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Abstract
The embodiment of the invention relates to the technical field of display, and discloses a display panel, which comprises: the power supply signal routing is positioned in the non-display area; the power signal routing includes: the pixel unit comprises a main body routing part, a first routing part, a second routing part and a third routing part, wherein the main body routing part is used for connecting the pixel unit, the first routing part and the second routing part are respectively positioned at two ends of the main body routing part, one end of the third routing part is electrically connected with the main body routing part, and the other end of the third routing part is used for accessing a third power supply voltage signal; wherein a connection point of the third routing portion with the body routing portion is located between a connection point of the first routing portion with the body routing portion and a connection point of the second routing portion with the body routing portion. The uniformity of the power supply voltage of the display panel can be improved, and the display effect of the display panel is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel.
Background
In recent years, Organic Light-Emitting diodes (OLEDs) have become very popular flat display products at home and abroad because OLED displays have the characteristics of self-luminescence, wide viewing angle, short reaction time, high luminous efficiency, wide color gamut, low operating voltage, thin panel, large-sized and bendable panel, simple manufacturing process, and the like, and also have the potential of low cost.
However, the inventors found that at least the following problems exist in the prior art: in the OLED display panel, the power signal wires are connected to the screen body on two sides of the lower frame of the power signal wires, and the power voltage of the area close to the power supply position of the power signal is higher than that of the area far away from the power supply position, which is called power voltage Drop (IR Drop), and the IR Drop can cause current difference of different areas of the display panel and influence the display effect of the display panel.
Disclosure of Invention
Embodiments of the present invention provide a display panel, which improves the uniformity of the power voltage of the display panel and improves the display effect of the display panel.
To solve the above technical problem, an embodiment of the present invention provides a display panel including: the display device comprises a display area, a non-display area surrounding the display area, and a power signal wire positioned in the non-display area; the power supply signal routing is used for providing power supply voltage signals for the pixel units of the display area; the power signal routing includes: the main body routing part is used for connecting the pixel units, and the first routing part and the second routing part are respectively positioned at two ends of the main body routing part, and the routing directions of the first routing part and the second routing part are different from the routing direction of the main body routing part; one end of the first wiring part is electrically connected with the main body wiring part, and the other end of the first wiring part is used for accessing a first power supply voltage signal; one end of the second wiring part is electrically connected with the main body wiring part, and the other end of the second wiring part is used for accessing a second power supply voltage signal; the power signal routing further comprises: one end of the third wiring part is electrically connected with the main body wiring part, and the other end of the third wiring part is used for accessing a third power supply voltage signal; wherein a connection point of the third routing portion with the body routing portion is located between a connection point of the first routing portion with the body routing portion and a connection point of the second routing portion with the body routing portion.
In addition, a first distance is kept between a connecting point of the first routing part and the main body routing part and a connecting point of the third routing part and the main body routing part; a second distance is kept between the connection point of the second routing part and the main body routing part and the connection point of the third routing part and the main body routing part; a ratio of the first distance to the second distance is between 3/7 and 7/3;
preferably, the first distance and the second distance are the same.
In addition, the power signal routing further comprises: a connecting portion; the other end of the third wire routing part is connected with the first wire routing part and/or the second wire routing part through the connecting part.
In addition, the display panel further includes: a first power supply pad, a second power supply pad, and a third power supply pad positioned in the non-display area; the third power supply pad is located between the first power supply pad and the second power supply pad; the other end of the first wire routing part is electrically connected with the first power supply pad, and the other end of the second wire routing part is electrically connected with the second power supply pad; the other end of the third wire routing part is also electrically connected with the third power supply pad.
In addition, the display panel further includes: a first power supply pad, a second power supply pad, and a third power supply pad positioned in the non-display area; the third power supply pad is located between the first power supply pad and the second power supply pad; the other end of the first wire routing part is electrically connected with the first power supply pad, and the other end of the second wire routing part is electrically connected with the second power supply pad; the other end of the third wire routing part is electrically connected with the third power supply pad.
In addition, the display panel further includes: a fourth power supply pad between the first power supply pad and the second power supply pad; the other end of the third wire routing part is also electrically connected with the fourth power supply pad.
In addition, the third routing portion is provided with a plurality of.
In addition, the power signal routing further comprises: a connecting portion; the other ends of the plurality of third wire routing parts are electrically connected to the first wire routing parts and/or the second wire routing parts through the same connecting part.
In addition, the display panel further includes: a first power supply pad, a second power supply pad, and a plurality of fifth power supply pads located in the non-display area; the fifth power supply pad is located between the first power supply pad and the second power supply pad; the other end of the first wire routing part is electrically connected with the first power supply pad, and the other end of the second wire routing part is electrically connected with the second power supply pad; the other end of at least part of the third routing parts is also connected with the fifth power supply pad, wherein each of the third routing parts in the at least part of the third routing parts is correspondingly connected with one fifth power supply pad.
In addition, the display panel further includes: the first routing part and the second routing part are positioned on two sides of the chip bonding pad area; the main body wiring part is positioned between the display area and the chip bonding pad area; the third wiring part penetrates through the chip bonding pad area and is connected with the main body wiring part.
Compared with the prior art, the embodiment of the invention provides a display panel, which comprises: the display device comprises a display area, a non-display area surrounding the display area and power signal wiring positioned in the non-display area; the power supply signal wiring is used for providing power supply voltage signals for the pixel units of the display area; the power signal routing includes: the pixel unit comprises a main body routing part used for connecting the pixel units, a first routing part and a second routing part which are respectively positioned at two ends of the main body routing part, wherein the routing directions of the first routing part and the second routing part are different from the routing direction of the main body routing part; one end of the first wiring part is electrically connected with the main body wiring part, and the other end of the first wiring part is used for accessing a first power supply voltage signal; one end of the second wiring part is electrically connected with the main body wiring part, and the other end of the second wiring part is used for accessing a second power supply voltage signal; the power signal routing further comprises: one end of the third wiring part is electrically connected with the main body wiring part, and the other end of the third wiring part is used for accessing a third power supply voltage signal; wherein a connection point of the third routing portion and the main body routing portion is located between a connection point of the first routing portion and the main body routing portion and a connection point of the second routing portion and the main body routing portion. The first wire routing part and the second wire routing part are used for providing power supply voltage signals, and the first power supply voltage signals and the second power supply voltage signals are input to the two ends of the main body wire routing part, so that the power supply voltage signals are provided for the pixel units of the display area; because the main body routing part providing a power supply voltage signal for the display area is connected with the pixel unit and has a larger load, the power supply voltage close to two ends of the main body routing part is higher than the power supply voltage at the middle position of the main body routing part, so that the current difference of different areas of the display panel can be caused, and the display effect of the display panel is influenced; the power signal routing in this embodiment further includes: and the third wire routing part is positioned between the connection point of the first wire routing part and the main body wire routing part and the connection point of the second wire routing part and the main body wire routing part, namely, a third power supply voltage signal is input from the middle part of the main body wire routing part, so that the difference between the voltage at two ends of the main body wire routing part and the voltage at the middle part of the main body wire routing part can be reduced, the uniformity of the power supply voltage in the display panel is improved, and the display effect of the display panel is improved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the present invention;
fig. 2 is another structural schematic diagram of a display panel according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of a display panel according to a second embodiment of the present invention;
fig. 4 is another structural schematic diagram of a display panel according to a second embodiment of the present invention;
FIG. 5 is a schematic diagram of a display panel according to a third embodiment of the present invention;
fig. 6 is another schematic structural diagram of a display panel according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display panel according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to a display panel, and a schematic structural view of the display panel in this embodiment is shown in fig. 1 and 2, and includes: the display device comprises a display area 01, a non-display area 02 surrounding the display area 01, and power signal wiring located in the non-display area 02; the power signal traces are used for providing power voltage signals for the pixel units in the display area 01.
The power signal routing includes: the pixel structure comprises a main body wire walking part 10 used for connecting pixel units, a first wire walking part 11 and a second wire walking part 12 which are respectively positioned at two ends of the main body wire walking part 10, wherein the wire walking directions of the first wire walking part 11 and the second wire walking part 12 are different from the wire walking direction of the main body wire walking part 10; one end of the first wire routing part 11 is electrically connected with the main body wire routing part 10, and the other end is used for accessing a first power supply voltage signal; one end of the second wire routing part 12 is electrically connected with the main body wire routing part 10, and the other end is used for accessing a second power supply voltage signal.
Specifically, a first wire walking part 11 and a second wire walking part 12 for providing a power supply voltage signal are arranged at two ends of the main body wire walking part 10, the first wire walking part 11 inputs a first power supply voltage signal to one end of the main body wire walking part 10, and the second wire walking part 12 inputs a second power supply voltage signal to the other end of the main body wire walking part 10, so that the power supply voltage signal is provided for the pixel units of the display area 01, and normal display of the pixel units of the display area 01 is maintained. Since the main body wire trace portion 10 providing the display region 01 with the power voltage signal is connected to the pixel unit, the load is large, and therefore, the power voltage near the two ends of the main body wire trace portion 10 is higher than the power voltage at the middle position of the main body wire trace portion 10, which may cause the current difference in different regions of the display panel, and affect the display effect of the display panel.
The power signal routing further comprises: one end of the third wire routing part 13 is electrically connected with the main body wire routing part 10, and the other end of the third wire routing part 13 is used for accessing a third power supply voltage signal; wherein, the connection point of the third routing portion 13 and the main body routing portion 10 is located between the connection point of the first routing portion 11 and the main body routing portion 10 and the connection point of the second routing portion 12 and the main body routing portion 10.
The power signal routing in this embodiment further includes: since the third routing portion 13 is located between the connection point of the third routing portion 13 and the main body routing portion 10 and the connection point of the second routing portion 12 and the main body routing portion 10, that is, a third power supply voltage signal is input from the middle portion of the main body routing portion 10, the difference between the voltage at both ends of the main body routing portion 10 and the voltage at the middle portion of the main body routing portion 10 can be reduced, the uniformity of the power supply voltage in the display panel can be improved, and the display effect of the display panel can be improved.
It is worth mentioning that the display panel further includes: a chip bonding pad region 03 located in the non-display region 02, wherein the first wire trace portion 11 and the second wire trace portion 12 are located on two sides of the chip bonding pad region 03; the main body wire trace part 10 is positioned between the display area 01 and the chip pad area 03; the third wire traces 13 are connected to the body wire traces 10 through the chip pad region 03.
Specifically, as shown in fig. 1, the display panel further includes: a die pad area 03 located in the non-display area 02, and the die pad area 03 located under the display area 01. The chip pad region 03 includes: the display panel comprises a chip signal input bonding pad group close to one side of the display area 01 and a chip signal output bonding pad group positioned below the chip signal input bonding pad group, wherein a gap exists between the chip signal input bonding pad group and the chip signal output bonding pad group, and the chip signal input bonding pad group and the chip signal output bonding pad group both comprise a plurality of bonding pads. The main body wire trace portion 10 is located on one side of the display region 01 and between the display region 01 and the chip pad region 03, and the first wire trace portion 11 and the second wire trace portion 12 are located on both sides of the chip pad region 03. The main body wiring portion 10 extends in the horizontal direction in fig. 1, and the first wiring portion 11 and the second wiring portion 12 extend in the vertical direction in fig. 1. The third wire traces 13 also extend in the vertical direction in fig. 1, and are electrically connected to the body wire traces 10 through the chip pad region 03. Because the chip pad area 03 includes a plurality of pads, when the third routing portion 13 passes through the position of the pad, an avoiding design is required to be performed to prevent the third routing portion 13 from shielding the pad or being electrically connected with the pad, so that normal use of the pad in the chip pad area 03 is ensured.
As shown in fig. 1, the main body wire trace portion 10 is located below the display area 01 of the display panel and extends in a horizontal direction, and the first wire trace portion 11, the second wire trace portion 12, and the third wire trace portion 13 are located below the display area 01 of the display panel and extend in a vertical direction, which is merely an example. In practical applications, the main body wire trace portion 10 may also be disposed at a side or above the display area 01 of the display panel, and accordingly, the positions of the first wire trace portion 11 and the second wire trace portion 12 may be rearranged according to the position of the main body wire trace portion 10.
Further, a first distance is provided between a connection point of the first routing portion 11 and the main body routing portion 10, and a connection point of the third routing portion 13 and the main body routing portion 10; a second distance is kept between the connection point of the second routing portion 12 and the main body routing portion 10 and the connection point of the third routing portion 13 and the main body routing portion 10; the ratio of the first distance to the second distance is between 3/7 and 7/3. That is, the third routing portion 13 is connected to substantially the middle portion of the main body routing portion 10, and thus, a third power supply voltage signal is input to the main body routing portion 10 from the middle portion of the main body routing portion 10, so that the voltage at both ends of the main body routing portion 10 is substantially the same as the voltage at the middle portion, and the difference between the voltage at both ends of the main body routing portion 10 and the voltage at the middle portion of the main body routing portion 10 is further reduced, thereby improving the uniformity of the power supply voltage in the display panel.
Preferably, the first distance and the second distance are the same. The third routing portion 13 is connected to the middle position of the main body routing portion 10, and when the first power supply voltage signal and the second power supply voltage signal are the same in magnitude, the position of the maximum voltage drop of the main body routing portion 10 when the third routing portion 13 is not provided is approximately at the position 1/2; when the third routing portion 13 is connected to the middle position of the main body routing portion 10, the position of the maximum voltage drop of the main body routing portion 10 is approximately at the position 1/4, and the uniformity of the power supply voltage in the display panel is further improved.
Further, the power signal routing further comprises: a connecting portion; the other end of the third wire trace portion 13 is connected to the first wire trace portion 11 and/or the second wire trace portion 12 through a connecting portion.
Specifically, the connection portion is located in a gap between the chip signal input pad group and the chip signal output pad group. In one implementation, the other end of the third wire walking part 13 is connected to the first wire walking part 11 through a connecting part, and a first power voltage signal accessed by the first wire walking part 11 is shunted to the third wire walking part 13 to provide a third power voltage signal for the third wire walking part 13. At this time, the third power voltage signal is half of the first power voltage signal.
In another implementation manner, the other end of the third wire walking portion 13 is connected to the second wire walking portion 12 through a connecting portion, and a second power supply voltage signal accessed by the second wire walking portion 12 is shunted to the third wire walking portion 13 to provide a third power supply voltage signal for the third wire walking portion 13. At this time, the third power supply voltage signal is half of the second power supply voltage signal.
In still another implementation manner, as shown in fig. 1, the other end of the third wire trace portion 13 is connected to the first wire trace portion 11 and the second wire trace portion 12 through a connection portion, and a first power voltage signal accessed by the first wire trace portion 11 is shunted to the third wire trace portion 13 to provide a third power voltage signal for the third wire trace portion 13; the second power voltage signal accessed by the second wire portion 12 is shunted to the third wire portion 13, and a third power voltage signal is provided to the third wire portion 13, and at this time, the third power voltage signal is half of the first power voltage signal and half of the second power voltage signal. As described above, when the first power supply voltage signal and the second power supply voltage signal have the same magnitude, the third power supply voltage signal is shunted at the middle portion of the main body routing portion 10, and therefore, the magnitude of the current input to the main body routing portion 10 after the third power supply voltage signal is shunted is close to the magnitude of the current shunted from the first routing portion 11 and the second routing portion 12 and input to the main body routing portion 10, and thus, the difference between the voltages at the portions of the main body routing portion 10 can be further reduced, and the uniformity of the power supply voltage in the display panel can be improved.
Further, as shown in fig. 2, the display panel further includes: a first power supply pad 21, a second power supply pad 22, and a third power supply pad 23 positioned in the non-display area 02; the third power supply pad 23 is located between the first power supply pad 21 and the second power supply pad 22; the other end of the first wire portion 11 is electrically connected to the first power supply pad 21, and the other end of the second wire portion 12 is electrically connected to the second power supply pad 22; the other end of the third wire portion 13 is also electrically connected to the third power supply pad 23.
Specifically, the first power supply pad 21, the second power supply pad 22, and the third power supply pad 23 are provided by pads of the FPC pad region 04. The other end of the first wire portion 11 is electrically connected to the first power supply pad 21, and the other end of the second wire portion 12 is electrically connected to the second power supply pad 22; the other end of the third wire portion 13 is also electrically connected to a third power supply pad 23, and the third power supply pad 23 is located between the first power supply pad 21 and the second power supply pad 22. The first power supply pad 21, the second power supply pad 22 and the third power supply pad 23 are used for accessing electrical signals, so as to provide power supply voltage signals for the first wire routing part 11, the second wire routing part 12 and the third wire routing part 13 respectively. In this embodiment, the third wire portion 13 is configured to receive not only the first power supply voltage signal of the first wire portion 11 and/or the second power supply voltage signal of the second wire portion 12, but also an electrical signal from the third power supply pad 23, and the electrical signal of the third power supply pad 23 can compensate for a current loss caused by the power supply voltage signal shunting in the third wire portion 13.
It should be noted that, in the present embodiment, the main body routing portion 10 providing the display region 01 with the power supply voltage signal is connected to the pixel unit, the load is large, and the first routing portion 11, the second routing portion 12 and the third routing portion 13 are pure routing structures, so that the voltage drop caused by the resistances of the first routing portion 11, the second routing portion 12 and the third routing portion 13 can be ignored compared with the voltage drop caused by the load of the main body routing portion 10, and this embodiment provides an improvement scheme mainly for the problem of the voltage drop caused by the large load of the main body routing portion 10.
Compared with the prior art, the embodiment of the invention provides a display panel, wherein a first wire walking part 11 and a second wire walking part 12 for providing a power supply voltage signal are arranged at two ends of a main body wire walking part 10, and the first wire walking part 11 and the second wire walking part 12 input the first power supply voltage signal and the second power supply voltage signal to two ends of the main body wire walking part 10 so as to provide the power supply voltage signal for pixel units of a display area 01; because the main body wire routing part 10 providing a power supply voltage signal for the display area 01 is connected with the pixel unit, and the load is larger, the power supply voltage close to two ends of the main body wire routing part 10 is higher than the power supply voltage at the middle position of the main body wire routing part 10, which can cause the current difference of different areas of the display panel and influence the display effect of the display panel; the power signal routing in this embodiment further includes: since the third routing portion 13 is located between the connection point of the third routing portion 13 and the main body routing portion 10 and the connection point of the second routing portion 12 and the main body routing portion 10, that is, a third power supply voltage signal is input from the middle portion of the main body routing portion 10, the difference between the voltage at both ends of the main body routing portion 10 and the voltage at the middle portion of the main body routing portion 10 can be reduced, the uniformity of the power supply voltage in the display panel can be improved, and the display effect of the display panel can be improved.
A second embodiment of the present invention relates to a display panel, and a schematic configuration diagram of the present embodiment is shown in fig. 3, and the second embodiment is substantially the same as the first embodiment except that the other end of the third wire portion 13 is directly electrically connected to the third power supply pad 23, and another configuration pattern in which the third wire portion 13 is connected is given.
Fig. 3 shows a schematic structural diagram of the present embodiment, and the display panel further includes: a first power supply pad 21, a second power supply pad 22, and a third power supply pad 23 positioned in the non-display area 02; the third power supply pad 23 is located between the first power supply pad 21 and the second power supply pad 22; the other end of the first wire portion 11 is electrically connected to the first power supply pad 21, and the other end of the second wire portion 12 is electrically connected to the second power supply pad 22; the other end of the third wire portion 13 is electrically connected to the third power supply pad 23.
Specifically, the first power supply pad 21, the second power supply pad 22, and the third power supply pad 23 are provided by pads of the FPC pad region 04. The other end of the first wire portion 11 is electrically connected to the first power supply pad 21, and the other end of the second wire portion 12 is electrically connected to the second power supply pad 22; the other end of the third wire portion 13 is electrically connected to a third power supply pad 23, and the third power supply pad 23 is located between the first power supply pad 21 and the second power supply pad 22. The first power supply pad 21, the second power supply pad 22 and the third power supply pad 23 are used for accessing electrical signals, so as to provide power supply voltage signals for the first wire routing part 11, the second wire routing part 12 and the third wire routing part 13 respectively. Another structure of the third wire portion 13 is shown in this embodiment, and the other end of the third wire portion 13 is directly electrically connected to the third power supply pad 23.
Further, as shown in fig. 4, the display panel further includes: a fourth power supply pad 24 between the first power supply pad 21 and the second power supply pad 22; the other end of the third wire portion 13 is also electrically connected to a fourth power supply pad 24.
Specifically, the fourth power supply pad 24 is provided by a pad of the FPC pad region 04, and the fourth power supply pad 24 is located between the first power supply pad 21 and the second power supply pad 22. The fourth power supply pad 24 is used for receiving an electrical signal and providing a power supply voltage signal for the third wire portion 13. In this embodiment, the other end of the third wire trace 13 is electrically connected to not only the third power pad 23 but also the fourth power pad 24, so that when the magnitudes of the electrical signals provided by the first power pad 21, the second power pad 22, the third power pad 23 and the fourth power pad 24 are the same, the magnitude of the current input to the main body wire trace 10 by the third wire trace 13 after shunting is similar to the magnitudes of the currents input to the main body wire trace 10 by the first wire trace 11 and the second wire trace 12, respectively, thereby further reducing the difference between the voltages of the parts of the main body wire trace 10 and improving the uniformity of the power voltage in the display panel.
Preferably, in this scheme, the lengths of the traces from the third power source pad 23 to the third trace 13 are the same as the lengths of the traces from the fourth power source pad 24 to the third trace 13, so as to avoid the problem that the magnitudes of the currents input into the third trace 13 by the third power source pad 23 and the fourth power source pad 24 are different due to the difference in trace resistances, and further ensure that the magnitudes of the currents input into the third trace 13 by the third power source pad 23 and the fourth power source pad 24 are the same.
Compared with the prior art, the display panel provided in the embodiment of the invention provides another structural style of the third wire portion 13, and the other end of the third wire portion 13 is directly and electrically connected to the third power supply pad 23 and the fourth power supply pad 24.
A third embodiment of the present invention relates to a display panel, and a schematic structural view of the display panel in this embodiment is shown in fig. 5 to 7, and the third embodiment is an improvement of the first embodiment, and is mainly improved in that a plurality of third routing portions 13 are provided.
The plurality of third routing parts 13 are provided, the plurality of third routing parts 13 can be uniformly connected to the main body routing part 10, and a power supply voltage signal is provided for the main body routing part 10 from a plurality of positions of the main body routing part 10, so that voltage difference of each part of the main body routing part 10 can be further reduced, and uniformity of power supply voltage in the display panel is improved.
Preferably, the power signal trace further includes: a connecting portion; the other ends of the plurality of third wire traces 13 are electrically connected to the first wire traces 11 and/or the second wire traces 12 through the same connecting portion.
Specifically, in one implementation, the other ends of the plurality of third wire traces 13 are connected to the first wire trace 11 through the same connecting portion, and a first power supply voltage signal accessed by the first wire trace 11 is shunted to the plurality of third wire traces 13 to provide a third power supply voltage signal to the plurality of third wire traces 13.
In another implementation manner, the other ends of the plurality of third wire routing portions 13 are connected to the second wire routing portion 12 through the same connecting portion, and a second power supply voltage signal accessed by the second wire routing portion 12 is shunted to the plurality of third wire routing portions 13 to provide a third power supply voltage signal for the plurality of third wire routing portions 13.
In still another implementation, as shown in fig. 5, the other ends of the plurality of third wire traces 13 are connected to the first wire trace 11 and the second wire trace 12 through the same connecting portion, and a first power voltage signal accessed by the first wire trace 11 is shunted to the plurality of third wire traces 13 to provide a third power voltage signal for the plurality of third wire traces 13; the second power voltage signal accessed by the second wire walking part 12 is shunted to the plurality of third wire walking parts 13, and the third power voltage signal is provided for the plurality of third wire walking parts 13
In the present embodiment, three structural patterns in which the plurality of third routing portions 13 are connected are given.
In addition, as shown in fig. 6, the display panel further includes: a first power supply pad 21, a second power supply pad 22, and a plurality of fifth power supply pads 25 positioned in the non-display area 02; the fifth power supply pad 25 is located between the first power supply pad 21 and the second power supply pad 22; the other end of the first wire portion 11 is electrically connected to the first power supply pad 21, and the other end of the second wire portion 12 is electrically connected to the second power supply pad 22; the other end of at least part of the third wire routing parts 13 is also connected with a fifth power supply pad 25, wherein each third wire routing part 13 in at least part of the third wire routing parts 13 is correspondingly connected with a fifth power supply pad 25.
Specifically, the first power supply pad 21, the second power supply pad 22, and the plurality of fifth power supply pads 25 are provided by pads of the FPC pad region 04, the other end of the first wire portion 11 is electrically connected to the first power supply pad 21, and the other end of the second wire portion 12 is electrically connected to the second power supply pad 22; the other end of at least part of the third wire routing parts 13 is also connected with a fifth power supply pad 25, wherein each third wire routing part 13 in at least part of the third wire routing parts 13 is correspondingly connected with a fifth power supply pad 25. In this embodiment, at least a part of the third wire trace portion 13 is configured to receive not only the first power supply voltage signal of the first wire trace portion 11 and/or the second power supply voltage signal of the second wire trace portion 12, but also the electrical signal from the fifth power supply pad 25, and the electrical signal of the fifth power supply pad 25 can compensate for the current loss after the power supply voltage signal is shunted in the third wire trace portion 13.
It is worth noting that as shown in fig. 7, the other end of each third wire portion 13 in the plurality of third wire portions 13 is connected with a fifth power supply pad 25, and a structural style that the other third wire portion 13 is connected is given.
Compared with the prior art, the embodiment of the invention provides the display panel, the plurality of third wire routing parts 13 are arranged, the plurality of third wire routing parts 13 are connected into the main body wire routing part 10, and the main body wire routing part 10 is provided with the power supply voltage signals from a plurality of positions of the main body wire routing part 10, so that the voltage difference of each part of the main body wire routing part 10 can be further reduced, and the uniformity of the power supply voltage in the display panel is improved.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A display panel, comprising: the display device comprises a display area, a non-display area surrounding the display area, and a power signal wire positioned in the non-display area; the power supply signal routing is used for providing power supply voltage signals for the pixel units of the display area;
the power signal routing includes: the main body routing part is used for connecting the pixel units, and the first routing part and the second routing part are respectively positioned at two ends of the main body routing part, and the routing directions of the first routing part and the second routing part are different from the routing direction of the main body routing part;
one end of the first wiring part is electrically connected with the main body wiring part, and the other end of the first wiring part is used for accessing a first power supply voltage signal;
one end of the second wiring part is electrically connected with the main body wiring part, and the other end of the second wiring part is used for accessing a second power supply voltage signal;
the power signal routing further comprises: one end of the third wiring part is electrically connected with the main body wiring part, and the other end of the third wiring part is used for accessing a third power supply voltage signal; wherein a connection point of the third routing portion with the body routing portion is located between a connection point of the first routing portion with the body routing portion and a connection point of the second routing portion with the body routing portion.
2. The display panel of claim 1, wherein a connection point of the first routing portion to the body routing portion and a connection point of the third routing portion to the body routing portion are a first distance apart;
a second distance is kept between the connection point of the second routing part and the main body routing part and the connection point of the third routing part and the main body routing part;
a ratio of the first distance to the second distance is between 3/7 and 7/3;
preferably, the first distance and the second distance are the same.
3. The display panel of claim 1, wherein the power signal trace further comprises: a connecting portion; the other end of the third wire routing part is connected with the first wire routing part and/or the second wire routing part through the connecting part.
4. The display panel according to claim 3, characterized in that the display panel further comprises: a first power supply pad, a second power supply pad, and a third power supply pad positioned in the non-display area; the third power supply pad is located between the first power supply pad and the second power supply pad;
the other end of the first wire routing part is electrically connected with the first power supply pad, and the other end of the second wire routing part is electrically connected with the second power supply pad;
the other end of the third wire routing part is also electrically connected with the third power supply pad.
5. The display panel according to claim 1, characterized in that the display panel further comprises: a first power supply pad, a second power supply pad, and a third power supply pad positioned in the non-display area; the third power supply pad is located between the first power supply pad and the second power supply pad;
the other end of the first wire routing part is electrically connected with the first power supply pad, and the other end of the second wire routing part is electrically connected with the second power supply pad;
the other end of the third wire routing part is electrically connected with the third power supply pad.
6. The display panel according to claim 5, characterized in that the display panel further comprises: a fourth power supply pad between the first power supply pad and the second power supply pad;
the other end of the third wire routing part is also electrically connected with the fourth power supply pad.
7. The display panel according to claim 1, wherein the third wire portion is provided in plurality.
8. The display panel of claim 7, wherein the power signal trace further comprises: a connecting portion; the other ends of the plurality of third wire routing parts are electrically connected to the first wire routing parts and/or the second wire routing parts through the same connecting part.
9. The display panel according to claim 8, characterized in that the display panel further comprises: a first power supply pad, a second power supply pad, and a plurality of fifth power supply pads located in the non-display area; the fifth power supply pad is located between the first power supply pad and the second power supply pad;
the other end of the first wire routing part is electrically connected with the first power supply pad, and the other end of the second wire routing part is electrically connected with the second power supply pad;
the other end of at least part of the third routing parts is also connected with the fifth power supply pad, wherein each of the third routing parts in the at least part of the third routing parts is correspondingly connected with one fifth power supply pad.
10. The display panel according to claim 1, characterized in that the display panel further comprises: the first routing part and the second routing part are positioned on two sides of the chip bonding pad area; the main body wiring part is positioned between the display area and the chip bonding pad area;
the third wiring part penetrates through the chip bonding pad area and is connected with the main body wiring part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010752105.8A CN111883509A (en) | 2020-07-30 | 2020-07-30 | Display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010752105.8A CN111883509A (en) | 2020-07-30 | 2020-07-30 | Display panel |
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| CN111883509A true CN111883509A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010752105.8A Pending CN111883509A (en) | 2020-07-30 | 2020-07-30 | Display panel |
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| CN114627758A (en) * | 2022-02-23 | 2022-06-14 | 武汉天马微电子有限公司 | Display panel and display device |
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Application publication date: 20201103 |