CN110930931A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN110930931A
CN110930931A CN201911398040.5A CN201911398040A CN110930931A CN 110930931 A CN110930931 A CN 110930931A CN 201911398040 A CN201911398040 A CN 201911398040A CN 110930931 A CN110930931 A CN 110930931A
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China
Prior art keywords
power
display panel
power trace
trace
power supply
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Granted
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CN201911398040.5A
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CN110930931B (en
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夏惠建
徐宁
余志华
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The application provides a display panel and a display device, the display panel can adopt a double-side driving mode, a first pixel of a first display area can be driven by a power chip through a third power wire, a first binding area power wire and a first display panel power wire in sequence, a second pixel of a second display area can be driven by the power chip through the third power wire, the second power wire, a second binding area power wire and a second display panel power wire in sequence, in the display panel provided by the invention, the ratio of the wiring bus resistance of the power chip for driving the first pixel to display to the wiring bus resistance of the power chip for driving the second pixel to display is within a preset range, therefore, the brightness displayed by the first pixel is similar to that displayed by the second pixel and basically keeps consistent, and the problem that the display brightness of the left side and the right side of the display panel in a double-side driving mode is inconsistent is solved.

Description

Display panel and display device
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
With the continuous development of display technologies, the large-screen narrow-frame display technology is more and more mature, and in order to further reduce the size of a frame, a display panel in a bilateral drive mode gradually becomes a mainstream trend.
In a display module, a display panel may be connected to a power chip through a Flexible Printed Circuit (FPC), and the power chip may provide a driving signal to the display panel through the FPC. The bilateral driving mode is that the power chip respectively provides driving signals for the pixels in different areas of the display panel from the left side and the right side of the display panel.
However, since it is not guaranteed that the left and right driving signals are consistent, the display panel in the dual-side driving method in the prior art has a problem that the display brightness on the left and right sides is not consistent.
Disclosure of Invention
In view of the above, the present invention provides a display panel and a display device to solve the problem of inconsistent display brightness at the left and right sides of the display panel in the dual-side driving manner in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a display panel, includes the power chip, and the power chip adopts two side drive modes, can walk a plurality of first pixels that are located first display area on the drive display panel through first side power to and can walk a plurality of second pixels that are located the second display area on the drive display panel through second side power, wherein, the bus that first side power was walked is hindered with the bus that second side power was walked and is hindered the ratio at predetermineeing the within range.
Through the technical scheme, the display panel provided by the invention adopts a double-side driving mode, the first pixels of the first display area can be sequentially driven by the power chip through the third power wire, the first binding area power wire and the first display panel power wire, the second pixels of the second display area can be sequentially driven by the power chip through the third power wire, the second binding area power wire and the second display panel power wire, in the display panel provided by the embodiment of the invention, the ratio of the wiring bus resistance for driving the first pixel to display to the wiring bus resistance for driving the second pixel to display is within a preset range, therefore, the brightness displayed by the first pixel is similar to that displayed by the second pixel and basically keeps consistent, and the problem that the display brightness of the left side and the right side of the display panel in a double-side driving mode is inconsistent is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a partial schematic view of a display panel structure according to an embodiment of the invention;
FIG. 3 is a partial schematic view of another display panel structure according to an embodiment of the present invention;
fig. 4 is a partial schematic view of a display panel structure according to an embodiment of the invention;
FIG. 5 is a partial schematic view of another display panel structure according to an embodiment of the present invention;
fig. 6 is a partial schematic view of a display panel structure according to an embodiment of the invention;
fig. 7 is a schematic diagram illustrating a comparison between a first power trace and a second power trace according to an embodiment of the invention;
fig. 8 is a schematic diagram illustrating a comparison between a first power trace and a second power trace according to an embodiment of the invention;
fig. 9 is a schematic diagram illustrating a comparison between a first power trace and a second power trace according to an embodiment of the invention;
fig. 10 is a schematic diagram illustrating a comparison between a first power trace and a second power trace according to an embodiment of the invention;
fig. 11 is a schematic diagram illustrating a comparison between a first power trace and a second power trace according to an embodiment of the invention;
fig. 12 is a schematic diagram illustrating a comparison between a first power trace and a second power trace according to an embodiment of the invention;
FIG. 13 is a partial schematic view of another display panel structure according to an embodiment of the invention;
fig. 14 is a schematic cross-sectional view comparing a first power trace and a second power trace according to another embodiment of the invention;
fig. 15 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
As described in the background section, the display panel of the double-side driving method in the prior art has a problem of inconsistent display brightness on the left and right sides.
The inventors found that the root cause of the above phenomenon is: the power chip is connected to the pixels of the corresponding side through the power wires on each side, the pixels of the corresponding side are driven, although the power wires are usually made of the same material and the same process in the manufacturing process, manufacturing tolerance inevitably occurs in the manufacturing process, wire resistance of the power wires on two sides is different, and display brightness of two sides of the display panel in a double-side driving mode is inconsistent.
In addition, in the manufacturing process of the display panel, the display panel is connected with the power chip on the FPC through the binding area, the manufacturing of the display panel is completed through a series of processes, the power chip on the FPC and the power wiring are completed through a series of processes, and then the display panel is bound and connected through the binding area. Generally, after a large amount of display panels are manufactured, it takes a long time to rework and correct the wiring resistance of the power supply wiring of the display panel, and the display panel almost needs to be manufactured again. Therefore, how to adjust the bus resistance of the power traces between the power chips and the pixels after the display panel is manufactured is to make the bus resistances of the power traces on both sides of the display panel relatively close, so as to solve the problem of inconsistent display brightness on both sides of the display panel adopting the double-side driving mode.
Based on this, the present invention provides a display panel, which includes a power chip, where the power chip adopts a double-side driving manner, and can drive a plurality of first pixels on the display panel in a first display area through a first-side power trace and a plurality of second pixels on the display panel in a second display area through a second-side power trace, where a difference from the prior art is that a ratio of a bus resistance of the first-side power trace to a bus resistance of the second-side power trace is within a preset range.
The bus resistances of the power supply wires on the two sides are basically close, so that the problem of different display brightness of display areas on the two sides of the display panel caused by different wire resistances of the power supply wires is solved.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, where the display panel includes: a first display area AA1 and a second display area AA2 which are oppositely disposed; a plurality of first pixels P1 located in the first display area AA1 and arranged in an array; a plurality of second pixels P2 located in the second display area AA2 and arranged in an array; the power chip C is electrically connected to the first pixel P1 and the second pixel P2 through power traces.
The power supply is walked the line and is included: a first display panel power trace X1 electrically connected to the first pixel P1; a first bonding area power trace Y1 electrically connected to the first display panel power trace X1; a first power trace Z1 electrically connected to first bonding zone power trace Y1; a second display panel power trace X2 electrically connected to the second pixel P2; a second bonding area power trace Y2 electrically connected to the second display panel power trace X2; a second power trace Z2 electrically connected to second bonding zone power trace Y2; a third power trace Z3 electrically connected to a common terminal G of the first power trace Z1 and the second power trace Z2; and the power chip C, the first power trace Z1, the second power trace Z2 and the third power trace Z3 are all disposed on the first flexible circuit board F1.
Bus resistances of the first display panel power trace X1, the first bonding area power trace Y1, and the first power trace Z1 (e.g., the line resistance R1 in fig. 1 and the line resistance R of the first power trace Z1)Z1And) the bus resistance with the second display panel power trace X2, the second bonding area power trace Y2, and the second power trace Z2 (e.g., the line resistance R2 in fig. 1 and the line resistance R of the second power trace Z2)Z2Sum) is within a preset range.
In this embodiment, specific values of the preset range are not limited, the preset range is close to or equal to 1, and when the preset range is 1, it indicates that bus resistances of the first display panel power trace X1, the first bonding area power trace Y1, and the first power trace Z1 are equal to bus resistances of the second display panel power trace X2, the second bonding area power trace Y2, and the second power trace Z2, which is an optimal state, so that display luminance of the first display area driven by the display panel double-side driving manner is the same as display luminance of the second display area.
In practice, the predetermined range may be 0.9 to 1.1, inclusive. That is, the difference between the bus resistance of the power chip to the first pixel and the bus resistance of the power chip to the second pixel is not more than 10% of the one-sided bus resistance. The bus resistance of the first pixel or the second pixel connected to the power supply chip can be changed, so that the difference of the bus resistance of the first pixel and the bus resistance of the second pixel is reduced, the voltage difference from the power supply chip to the first pixel and the second pixel is reduced to a certain extent, the voltage difference on the two sides tends to be consistent, the display brightness of the first display area is consistent with the display brightness of the second display area, and the display effect of the display panel is improved.
It should be noted that, in the present embodiment, the display brightness of the first display area and the display brightness of the second display area both refer to an average brightness, and although the plurality of pixels in the display panel are distributed in an array and have different positions, because the power trace in the display panel is a whole metal layer (as shown by X in fig. 1), the brightness difference of the pixels at different positions is not affected by the pixel position. Therefore, the display brightness difference caused by the pixel position is not considered in the embodiment of the invention. And only the average brightness difference between the first display area and the second display area is compensated, so that the brightness of the first display area and the brightness of the second display area are kept consistent as much as possible.
In this embodiment, the "first" and the "second" only refer to different corresponding sides in the case of the double-side driving mode, where the "first" does not refer to the left side or the right side of the display panel specifically, and the "second" does not refer to the right side or the left side of the display panel either, and for convenience of description, the "first" represents the left side and the "second" represents the right side in this embodiment to describe a specific implementation, but this is not a limitation to the embodiment of the present invention, and optionally, the "first" may also represent the right side of the display panel, and the "second" represents the left side of the display panel; or "first" may also represent the upper side of the display panel, and "second" represents the lower side of the display panel, which is not described in detail in this embodiment.
The inventive concept of the embodiment of the invention is as follows: in the manufacturing process of the display panel, the power supply wire on the display panel and the power supply wire in the binding area belong to a front-end process, the subsequent manufacturing of the power supply wire on the FPC is positioned in a rear-end process, after the front-end process is manufactured, the wire resistance detection is carried out on the power supply wire on the display panel and the power supply wire in the binding area formed in the front-end process, so that the bus resistance of the power supply wire on the left side of the display panel and the power supply wire in the binding area and the bus resistance of the power supply wire on the right side of the display panel and the power supply wire in the binding area are obtained, then the adjustment can be carried out through the wire resistance on the left side or the right side of the power supply wire on the FPC, so that the final bus resistance of all the power supply wires from the left side power supply chip to the first pixel is basically the same as or has smaller difference with the bus resistance from the right side power supply chip to the second, so that the bus resistances on both sides are consistent.
In the embodiment of the present invention, the specific manner of the binding region is not limited, and the binding manner may be a cop (chip On pi) manner, a cof (chip On film) manner, or a cog (chip On glass) manner.
Specifically, in the embodiment of the present invention, at least one of the length, the width, and the thickness of the first power trace or the second power trace may be adjusted to adjust the wire resistance, and different implementation manners provided by the embodiment of the present invention are described below with reference to the accompanying drawings.
The adjustment of the bus resistance of the power supply wiring can be realized by adjusting the length of the power supply wiring on the FPC.
Referring to fig. 2, fig. 2 is a partial schematic view of a display panel structure according to an embodiment of the present invention; at this time, if the material, width, and thickness of the first power trace Z1 on the FPC are the same as the material, width, and thickness of the second power trace Z2, the material, width, and thickness of the first power trace Z2 are adjusted to be smaller than the material, width, and thickness of the second power trace Z2, so that the wire resistance of the second power trace Z2 is greater than the wire resistance of the first power trace Z1.
Because the extension length of the second power trace Z2 is long and the wire resistance is large, the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is compensated, so that the ratio of the wire resistance of the first power trace Z1 to the sum of the bus resistances R1 of the first display panel power trace X1 and the first bonding area power trace Y1 to the sum of the wire resistance of the second power trace Z2 to the sum of the bus resistances R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is close to 1, and finally the display brightness of the first display area AA1 and the second display area AA2 is substantially consistent, thereby improving the display effect.
It should be noted that, in this embodiment, the width refers to an equivalent width or an average width of the power trace, and the thickness also refers to an equivalent thickness or an average thickness of the power trace, and is not particularly limited to the width or the thickness at a certain position. As shown in fig. 2, the first power trace Z1 includes all power traces from the connection point with the first bonding area power trace Y1 to the connection point with the second power trace Z2, and thus the length extending between the two connection points and along the direction of the first power trace Z1 is the extending length of the first power trace Z1.
Referring to fig. 3, fig. 3 is a partial schematic view of another display panel structure according to an embodiment of the present invention; at this time, if the material, width, and thickness of the first power trace Z1 on the FPC are the same as the material, width, and thickness of the second power trace Z2, the material, width, and thickness of the first power trace Z2 are adjusted to be longer than the material, width, and thickness of the second power trace Z6857, so that the wire resistance of the second power trace Z2 is smaller than the wire resistance of the first power trace Z1.
Because the first power trace Z1 has a long extension length and a large line resistance, the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is compensated, so that the ratio of the line resistance of the first power trace Z1 to the sum of the bus resistances R1 of the first display panel power trace X1 and the first bonding area power trace Y1 to the sum of the line resistance of the second power trace Z2 to the sum of the bus resistances R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is close to 1, and finally, the display brightness of the first display area AA1 and the second display area AA2 is substantially consistent, thereby improving the display effect.
It should be noted that, in the above two embodiments, adjusting the extending length of the first power trace Z1 and the extending length of the second power trace Z2 can be implemented by changing the position of the common end of the first power trace Z1 and the second power trace Z2. The bus resistance can be adjusted only by adjusting the position of the common end, that is, only the shape of the mask plate for etching the first power trace Z1, the second power trace Z2 and the third power trace Z3 on the FPC is changed.
The width of the power supply wiring on the FPC is adjusted, so that the bus resistance of the power supply wiring is adjusted.
Referring to fig. 4, fig. 4 is a partial schematic view of a display panel structure according to an embodiment of the present invention; at this time, if the material, the extending length, and the thickness of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the extending length, and the thickness of the first power trace Z1 are adjusted to be greater than that of the second power trace Z2, so that the wire resistance of the second power trace Z2 is greater than that of the first power trace Z1.
Because the width of the second power trace Z2 is small and the wire resistance is large, the bus resistance R2 of the second display panel power trace X2 and the second binding region power trace Y2 is compensated, so that the ratio of the wire resistance of the first power trace Z1 to the sum of the bus resistance R1 of the first display panel power trace X1 and the first binding region power trace Y1 to the sum of the wire resistance of the second power trace Z2 to the sum of the bus resistance R2 of the second display panel power trace X2 and the second binding region power trace Y2 is close to 1, and finally, the display luminance of the first display region AA1 and the display luminance of the second display region AA2 are substantially consistent, and the display effect is improved.
Referring to fig. 5, fig. 5 is a partial schematic view of another display panel structure according to an embodiment of the present invention; at this time, if the material, the extending length, and the thickness of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the extending length, and the thickness of the first power trace Z1 are adjusted to be smaller than that of the second power trace Z2, so that the wire resistance of the second power trace Z2 is smaller than that of the first power trace Z1.
Because the width of the first power trace Z1 is smaller and the wire resistance is larger, the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is compensated, so that the sum of the wire resistance of the first power trace Z1 and the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is close to 1, and the ratio of the wire resistance of the second power trace Z2 and the sum of the wire resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is substantially the same, and finally, the display brightness of the first display area AA1 and the second display area AA2 is substantially the same, thereby improving the display effect.
It should be noted that, in the two embodiments, the width of the first power trace Z1 and/or the width of the second power trace Z2 are adjusted, the width of only one of the power traces can be changed, or the widths of the two power traces can be changed at the same time, and in the adjustment process, the shape of the mask plate formed by etching the first power trace Z1, the second power trace Z2, and the third power trace Z3 on the FPC is changed, so as to achieve the purpose of changing the width of the power traces.
The thickness of the power supply wiring on the FPC is adjusted, so that the bus resistance of the power supply wiring is adjusted.
Referring to fig. 6, fig. 6 is a partial schematic view of a display panel structure according to an embodiment of the present invention; at this time, if the material, the extending length, and the width of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the extending length, and the width of the first power trace Z6323 are adjusted to be greater than those of the second power trace Z2, so that the wire resistance of the second power trace Z2 is greater than that of the first power trace Z1.
As shown in fig. 7, fig. 7 is a schematic diagram comparing a first power trace Z1 with a second power trace Z2 according to an embodiment of the present invention; the section is a section perpendicular to the display panel and parallel to the lower frame of the display panel. Because the thickness H2 of the second power trace Z2 is small and the wire resistance is large, the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is compensated, so that the ratio of the wire resistance of the first power trace Z1 to the sum of the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 to the sum of the wire resistance of the second power trace Z2 to the sum of the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is close to 1, and finally, the display brightness of the first display area AA1 and the second display area AA2 is basically consistent, and the display effect is improved.
Referring to fig. 8, fig. 8 is a schematic diagram illustrating a comparison between a first power trace Z1 and a second power trace Z2 according to an embodiment of the present invention; at this time, if the material, the extending length, and the width of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the extending length, and the width of the first power trace Z6323 are adjusted to be smaller than those of the second power trace Z2, so that the wire resistance of the second power trace Z2 is smaller than that of the first power trace Z1.
Because the thickness of the first power trace Z1 is small and the wire resistance is large, the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is compensated, so that the sum of the wire resistance of the first power trace Z1 and the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is close to 1, and the ratio of the wire resistance of the second power trace Z2 and the sum of the wire resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is substantially the same, and finally, the display brightness of the first display area AA1 and the second display area AA2 is substantially the same, and the display effect is improved.
It should be noted that, in the above embodiments, the width of the first power trace Z1 and/or the thickness of the second power trace Z2 are adjusted, the thickness of one of the power traces can be changed, the thicknesses of two power traces can also be changed at the same time, and the process of adjusting the thickness can be performed by additionally arranging a layer of mask plate to shield the power trace with the thicker thickness, and performing etching for multiple times in the region where the power trace with the thinner thickness is to be formed, so as to form the thinner power trace.
It should be noted that, corresponding to the adjustment of the thickness, when the material, the thickness, the extending length, and the width of the first power trace Z1 are the same as those of the second power trace Z2, an effect similar to the increase of the thickness can be obtained by connecting one of the power traces to another metal layer in parallel.
In this embodiment, it is not limited whether the other metal layers connected in parallel and the FPC where the power trace is located are the same FPC.
Referring to fig. 9, fig. 9 is a schematic diagram illustrating a comparison between a first power trace Z1 and a second power trace Z2 according to an embodiment of the present invention; wherein, the bus resistor R1 of the first display panel power trace X1 and the first bonding area power trace Y1, the ratio of the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is greater than 1.1, i.e., R1/R2>1.1, i.e., the bus resistance of the left display panel power trace and the bonding area power trace is greater than the bus resistance of the right display panel power trace and the bonding area power trace, if the material, thickness, extension length and width of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the second flexible circuit board F2 can be additionally disposed, and the first power trace Z1 can be electrically connected to the metal layer on the second flexible circuit board F2 through the conductive portion D1, thereby reducing the wire resistance of the first power trace Z1 such that the wire resistance of the second power trace Z2 is greater than the wire resistance of the first power trace Z1.
It should be noted that, in this embodiment, the specific structure of the conductive portion is not limited, and the conductive portion may be a conductive adhesive or other conductive structure, as long as the metal layers on the two flexible circuit boards are electrically connected to form a parallel structure.
Because the line resistance of the second power trace Z2 is relatively large, the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is compensated, so that the sum of the line resistance of the first power trace Z1 and the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is equal to the sum of the line resistance of the second power trace Z2 and the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2, and finally the display brightness of the first display area AA1 and the second display area AA2 is substantially the same, thereby improving the display effect.
Referring to fig. 10, fig. 10 is a schematic diagram illustrating a comparison between a first power trace Z1 and a second power trace Z2 according to an embodiment of the present invention; wherein, the bus resistor R1 of the first display panel power trace X1 and the first bonding area power trace Y1, the ratio of the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is less than 0.9, i.e., R1/R2 is less than 0.9, i.e., the bus resistance of the left display panel power trace and the bonding area power trace is much less than the bus resistance of the right display panel power trace and the bonding area power trace, at this time, if the material, thickness, extension length and width of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the second flexible circuit board F2 can be additionally disposed, and the second power trace Z2 can be electrically connected to the metal layer on the second flexible circuit board F2 through the conductive portions D such as conductive adhesive, so as to reduce the wire resistance of the second power trace Z2, and the wire resistance of the second power trace Z2 is smaller than the wire resistance of the first power trace Z1.
Because the line resistance of the first power trace Z1 is relatively large, the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is compensated, so that the sum of the line resistance of the first power trace Z1 and the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is equal to the sum of the line resistance of the second power trace Z2 and the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2, and finally the display brightness of the first display area AA1 and the second display area AA2 is substantially the same, and the display effect is improved.
Referring to fig. 11, fig. 11 is a schematic diagram illustrating a comparison between a first power trace Z1 and a second power trace Z2 according to an embodiment of the present invention; wherein, the bus resistor R1 of the first display panel power trace X1 and the first bonding area power trace Y1, the ratio of the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is greater than 1.1, i.e., R1/R2>1.1, i.e., the bus resistance of the left display panel power trace and the bonding area power trace is greater than the bus resistance of the right display panel power trace and the bonding area power trace, if the material, thickness, extension length and width of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the first power trace Z1 can be electrically connected to the other metal layer trace M1 on the first flexible circuit board F1 through the conductive via V1, thereby reducing the wire resistance of the first power trace Z1 such that the wire resistance of the second power trace Z2 is greater than the wire resistance of the first power trace Z1.
Because the line resistance of the second power trace Z2 is relatively large, the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is compensated, so that the sum of the line resistance of the first power trace Z1 and the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is equal to the sum of the line resistance of the second power trace Z2 and the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2, and finally the display brightness of the first display area AA1 and the second display area AA2 is substantially the same, thereby improving the display effect.
Referring to fig. 12, fig. 12 is a schematic cross-sectional comparison diagram of another first power trace Z1 and a second power trace Z2 according to an embodiment of the present invention; wherein, the bus resistor R1 of the first display panel power trace X1 and the first bonding area power trace Y1, the ratio of the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is less than 0.9, i.e., R1/R2 is less than 0.9, i.e., the bus resistance of the left display panel power trace and the bonding area power trace is much less than the bus resistance of the right display panel power trace and the bonding area power trace, at this time, if the material, thickness, extension length and width of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the second power trace Z2 can be electrically connected to the other metal layer trace M1 on the first flexible circuit board F1 through the conductive via V2, so as to reduce the wire resistance of the second power trace Z2, and the wire resistance of the second power trace Z2 is smaller than that of the first power trace Z1.
Because the line resistance of the first power trace Z1 is relatively large, the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is compensated, so that the sum of the line resistance of the first power trace Z1 and the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 is equal to the sum of the line resistance of the second power trace Z2 and the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2, and finally the display brightness of the first display area AA1 and the second display area AA2 is substantially the same, and the display effect is improved.
In the embodiment of the invention, the conductive through holes are directly formed on the FPCs where the first power supply wire and the second power supply wire are positioned to be connected with other metal layers, so that the wire resistance of the corresponding power supply wires is reduced, and the aim of adjusting the bus resistance is fulfilled.
In other embodiments of the present invention, any two or three of the extension length, the width, and the thickness of the power trace may be adjusted at the same time, so that the ratio between the bus resistance of the first display panel power trace, the first bonding area power trace, and the first power trace, and the bus resistance of the second display panel power trace, the second bonding area power trace, and the second power trace is within a preset range, that is, close to 1, thereby substantially equalizing the display brightness of the first display area and the second display area, and improving the display effect.
Specifically, please refer to fig. 13, fig. 13 is a partial schematic view of another display panel structure according to an embodiment of the present invention; at this time, if the material and thickness of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the width of the first power trace Z1 may be adjusted to be greater than that of the second power trace Z2, and the extension length of the first power trace Z1 may be adjusted to be smaller than that of the second power trace Z2, so that the wire resistance of the second power trace Z2 is greater than that of the first power trace Z1.
Because the width of the second power trace Z2 is smaller and the extension length is larger, the wire resistance of the second power trace Z2 is larger, the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is compensated, so that the ratio of the wire resistance of the first power trace Z1 to the sum of the bus resistance R1 of the first display panel power trace X1 and the first bonding area power trace Y1 to the ratio of the wire resistance of the second power trace Z2 to the sum of the bus resistance R2 of the second display panel power trace X2 and the second bonding area power trace Y2 is close to 1, and finally, the display brightness of the first display area AA1 and the display area AA2 is basically consistent, and the display effect is improved.
Referring to fig. 14, fig. 14 is a schematic cross-sectional comparison diagram of another first power trace Z1 and a second power trace Z2 according to an embodiment of the present invention; at this time, if the material and thickness of the first power trace Z1 on the FPC are the same as those of the second power trace Z2, the width of the first power trace Z1 may be adjusted to be smaller than the width of the second power trace Z2, and the extension length of the first power trace Z1 may be adjusted to be larger than that of the second power trace Z2, so that the wire resistance of the second power trace Z2 is smaller than that of the first power trace Z1.
Because the width of the first power trace Z1 is smaller and the extension length is larger, the wire resistance of the first power trace Z1 is larger, the sum of the wire resistance of the first display panel power trace X1 and the bus resistance R1 of the first bonding area power trace Y1 is compensated, so that the ratio of the wire resistance of the first power trace Z1 to the sum of the wire resistance of the first display panel power trace X1 and the bus resistance R1 of the first bonding area power trace Y1 to the ratio of the wire resistance of the second power trace Z2 to the sum of the wire resistance of the second display panel power trace X2 and the bus resistance R2 of the second bonding area power trace Y2 is close to 1, and finally, the display brightness of the first display area AA1 and the display area AA2 are basically consistent, and the display effect is improved.
Because the length and the width of the power supply wire are changed, the shape of the mask plate in the etching process is only required to be modified, so that the length and the width can be changed and combined in the same process for manufacturing, and the manufacturing process of the power supply wire is not influenced.
In other embodiments of the present invention, the width and thickness of the power traces (including the parallel connection mode) may also be changed at the same time to adjust the bus resistance, for example, when the bus resistance of the first display panel power trace and the first bonding area power trace is greater than 1.1, the ratio of the bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1; the first power supply wire and the second power supply wire are made of the same material and have the same extension length; the width of the first power supply wire is larger than that of the second power supply wire; the thickness of the first power supply wire is larger than that of the second power supply wire, or the first power supply wire can be electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
When the ratio of the bus resistance of the first display panel power supply wire and the first binding area power supply wire to the bus resistance of the second display panel power supply wire and the second binding area power supply wire is less than 0.9; the first power supply wire and the second power supply wire are made of the same material and have the same extension length; the width of the first power supply wire is smaller than that of the second power supply wire; the thickness of the first power supply wire is smaller than that of the second power supply wire, or the second power supply wire can be electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
For the detailed description, reference may be made to the description of the above embodiments and the accompanying drawings, which are not described in detail in this embodiment.
Similarly, the bus resistance can be adjusted by adjusting the extension length and thickness (including the parallel connection mode) of the power supply lines, for example, when the ratio of the bus resistance of the first display panel power supply line and the first binding area power supply line to the bus resistance of the second display panel power supply line and the second binding area power supply line is greater than 1.1; the first power supply wire and the second power supply wire are made of the same material and have the same width; the extension length of the first power supply wire is less than that of the second power supply wire; the thickness of the first power supply wire is larger than that of the second power supply wire, or the first power supply wire can be electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
When the ratio of the bus resistance of the first display panel power supply wire and the first binding area power supply wire to the bus resistance of the second display panel power supply wire and the second binding area power supply wire is less than 0.9; the first power supply wire and the second power supply wire are made of the same material and have the same width; the extension length of the first power supply wire is greater than that of the second power supply wire; the thickness of the first power supply wire is smaller than that of the second power supply wire, or the second power supply wire can be electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
In another embodiment of the present invention, the extension length, width, and thickness (including the parallel connection mode) of the power traces may also be adjusted at the same time to achieve the adjustment of the bus resistance, for example, when the bus resistance of the first display panel power trace and the first bonding area power trace is greater than 1.1, the ratio of the bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1; the first power supply wire and the second power supply wire are made of the same material; the width of the first power supply wire is larger than that of the second power supply wire; the extension length of the first power supply wire is less than that of the second power supply wire; the thickness of the first power supply wire is larger than that of the second power supply wire, and/or the first power supply wire can be electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
When the ratio of the bus resistance of the first display panel power supply wire and the first binding area power supply wire to the bus resistance of the second display panel power supply wire and the second binding area power supply wire is less than 0.9; the first power supply wire and the second power supply wire are made of the same material; the width of the first power supply wire is smaller than that of the second power supply wire; the extension length of the first power supply wire is greater than that of the second power supply wire; the thickness of the first power supply wire is smaller than that of the second power supply wire, and/or the second power supply wire can be electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
It should be noted that, when the adjustment is performed by adopting the method, because various factors can be adjusted, the adjustment process is more flexible, and the adjustment method is suitable for the situation that the bus resistances have large differences, and under the situation that the adjustment influence on the bus resistances is small through one parameter adjustment, the adjustment effect can be superposed through simultaneous adjustment of a plurality of parameters, so that the bus resistances on the left side and the right side tend to be consistent, and the display effect is improved.
In addition, the specific type of the display panel is not limited in the embodiments of the present invention, and as long as the power routing structure is as described above, and when there is a bus resistance difference between the power routing of the display panel and the power routing of the binding region, the power routing on the flexible printed circuit board FPC can be used to perform adjustment compensation, so as to obtain the display panel with an improved display effect.
Based on the same inventive concept, there is also provided a display device in the embodiment of the present invention, as shown in fig. 15, wherein the display device 150 includes the display panel described in any of the above embodiments. The display device may be an intelligent mobile terminal, such as a smart phone, a tablet computer, or a wearable device, and may also be other display devices, which is not limited in this embodiment.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (22)

1. A display panel, comprising:
the display device comprises a first display area and a second display area which are oppositely arranged;
a plurality of first pixels located in the first display region and arranged in an array;
a plurality of second pixels located in the second display region and arranged in an array;
the power supply chip is electrically connected with the first pixels and the second pixels through power supply wires respectively;
the power trace includes:
a first display panel power trace electrically connected to the first pixel;
a first bonding area power trace electrically connected to the first display panel power trace;
a second display panel power trace electrically connected to the second pixel;
a second bonding area power trace electrically connected to the second display panel power trace;
the first power supply wire is electrically connected with the first binding area power supply wire;
a second power trace electrically connected to the second bonding area power trace;
a third power trace electrically connected to a common terminal of the first power trace and the second power trace; the power supply chip, the first power supply wire, the second power supply wire and the third power supply wire are all arranged on the first flexible circuit board;
the ratio of the bus resistance of the first display panel power line, the first binding area power line and the first power line to the bus resistance of the second display panel power line, the second binding area power line and the second power line is within a preset range.
2. The display panel of claim 1, wherein the preset range is 0.9 to 1.1, inclusive.
3. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1,
and the material, width and thickness of the first power supply wire are the same as those of the second power supply wire,
the extension length of the first power trace is smaller than that of the second power trace.
4. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is less than 0.9,
and the material, width and thickness of the first power supply wire are the same as those of the second power supply wire,
the extension length of the first power trace is greater than that of the second power trace.
5. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1,
and the material, the extension length and the thickness of the first power supply wire are the same as those of the second power supply wire,
the width of the first power trace is greater than the width of the second power trace.
6. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is less than 0.9,
and the material, the extension length and the thickness of the first power supply wire are the same as those of the second power supply wire,
the width of the first power trace is smaller than that of the second power trace.
7. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1,
and the material, the extending length and the width of the first power supply wire are the same as those of the second power supply wire,
the thickness of the first power trace is greater than the thickness of the second power trace.
8. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is less than 0.9,
and the material, the extending length and the width of the first power supply wire are the same as those of the second power supply wire,
the thickness of the first power trace is less than the thickness of the second power trace.
9. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1,
and the material, thickness, extension length and width of the first power supply wire are the same as those of the second power supply wire,
the first power supply routing is electrically connected with the metal layer on the second flexible circuit board through the conductive part.
10. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is less than 0.9,
and the material, thickness, extension length and width of the first power supply wire are the same as those of the second power supply wire,
the second power supply routing is electrically connected with the metal layer on the second flexible circuit board through the conductive part.
11. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace, the first bonding area power trace, and a bus resistance of the second display panel power trace, the second bonding area power trace is greater than 1.1,
and the material, thickness, extension length and width of the first power supply wire are the same as those of the second power supply wire,
the first power supply wire is electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
12. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace, the first bonding area power trace, and a bus resistance of the second display panel power trace, the second bonding area power trace is less than 0.9,
and the material, thickness, extension length and width of the first power supply wire are the same as those of the second power supply wire,
the second power supply wire is electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
13. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1;
the first power supply wire and the second power supply wire are made of the same material and have the same thickness;
the width of the first power trace is greater than that of the second power trace;
the extension length of the first power trace is smaller than that of the second power trace.
14. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is less than 0.9;
the first power supply wire and the second power supply wire are made of the same material and have the same thickness;
the width of the first power trace is smaller than that of the second power trace;
the extension length of the first power trace is greater than that of the second power trace.
15. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1;
the first power supply wire and the second power supply wire are made of the same material and have the same extension length;
the width of the first power trace is greater than that of the second power trace;
the thickness of the first power supply wire is larger than that of the second power supply wire, or the first power supply wire is electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
16. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is less than 0.9;
the first power supply wire and the second power supply wire are made of the same material and have the same extension length;
the width of the first power trace is smaller than that of the second power trace;
the thickness of the first power supply wire is smaller than that of the second power supply wire, or the second power supply wire is electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
17. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1;
the first power supply wire and the second power supply wire are made of the same material and have the same width;
the extension length of the first power supply wire is smaller than that of the second power supply wire;
the thickness of the first power supply wire is larger than that of the second power supply wire, or the first power supply wire is electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
18. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is less than 0.9;
the first power supply wire and the second power supply wire are made of the same material and have the same width;
the extension length of the first power supply wire is greater than that of the second power supply wire;
the thickness of the first power supply wire is smaller than that of the second power supply wire, or the second power supply wire is electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
19. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is greater than 1.1;
the first power supply wire and the second power supply wire are made of the same material;
the width of the first power trace is greater than that of the second power trace;
the extension length of the first power supply wire is smaller than that of the second power supply wire;
the thickness of the first power supply wire is larger than that of the second power supply wire, and/or the first power supply wire is electrically connected with other layers of metal wires on the first flexible circuit board through a conductive through hole.
20. The display panel of claim 1, wherein when a ratio of a bus resistance of the first display panel power trace and the first bonding area power trace to a bus resistance of the second display panel power trace and the second bonding area power trace is less than 0.9;
the first power supply wire and the second power supply wire are made of the same material;
the width of the first power trace is smaller than that of the second power trace;
the extension length of the first power supply wire is greater than that of the second power supply wire;
the thickness of the first power supply wire is smaller than that of the second power supply wire, and/or the second power supply wire is electrically connected with other layers of metal wires on the first flexible circuit board through the conductive through hole.
21. The display panel according to claim 1, wherein the display panel is an OLED display panel or a liquid crystal display panel.
22. A display device, comprising:
a display panel as claimed in any one of claims 1-21.
CN201911398040.5A 2019-12-30 2019-12-30 Display panel and display device Active CN110930931B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111354306A (en) * 2020-04-07 2020-06-30 Oppo广东移动通信有限公司 Display device, electronic apparatus, and display method
CN111653600A (en) * 2020-06-17 2020-09-11 京东方科技集团股份有限公司 Display substrate, manufacturing method thereof and display device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006065281A (en) * 2004-08-25 2006-03-09 Samsung Sdi Co Ltd Light emitting display
US20070096135A1 (en) * 2005-10-03 2007-05-03 Shoichiro Matsumoto Display panel
US20150372072A1 (en) * 2014-06-23 2015-12-24 Shanghai Tianma AM-OLED Co., Ltd. Organic light emitting diode display panel, organic light emitting diode display device, and method for fabricating organic light emitting diode display panel
US20170288008A1 (en) * 2016-03-31 2017-10-05 Samsung Display Co., Ltd. Display apparatus
CN108389880A (en) * 2018-02-23 2018-08-10 武汉华星光电半导体显示技术有限公司 A kind of OLED display panel and OLED display
CN110061147A (en) * 2019-04-24 2019-07-26 昆山国显光电有限公司 Display panel and preparation method thereof, display device
CN110249430A (en) * 2019-01-22 2019-09-17 京东方科技集团股份有限公司 The preparation method of display panel, display device and display panel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006065281A (en) * 2004-08-25 2006-03-09 Samsung Sdi Co Ltd Light emitting display
US20070096135A1 (en) * 2005-10-03 2007-05-03 Shoichiro Matsumoto Display panel
US20150372072A1 (en) * 2014-06-23 2015-12-24 Shanghai Tianma AM-OLED Co., Ltd. Organic light emitting diode display panel, organic light emitting diode display device, and method for fabricating organic light emitting diode display panel
US20170288008A1 (en) * 2016-03-31 2017-10-05 Samsung Display Co., Ltd. Display apparatus
CN108389880A (en) * 2018-02-23 2018-08-10 武汉华星光电半导体显示技术有限公司 A kind of OLED display panel and OLED display
CN110249430A (en) * 2019-01-22 2019-09-17 京东方科技集团股份有限公司 The preparation method of display panel, display device and display panel
CN110061147A (en) * 2019-04-24 2019-07-26 昆山国显光电有限公司 Display panel and preparation method thereof, display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111354306A (en) * 2020-04-07 2020-06-30 Oppo广东移动通信有限公司 Display device, electronic apparatus, and display method
CN111354306B (en) * 2020-04-07 2022-01-07 Oppo广东移动通信有限公司 Display device, electronic apparatus, and display method
CN111653600A (en) * 2020-06-17 2020-09-11 京东方科技集团股份有限公司 Display substrate, manufacturing method thereof and display device
CN111653600B (en) * 2020-06-17 2023-08-29 京东方科技集团股份有限公司 Display substrate, manufacturing method thereof and display device

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