CN107490885A - A kind of display device - Google Patents
A kind of display device Download PDFInfo
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- CN107490885A CN107490885A CN201710792276.1A CN201710792276A CN107490885A CN 107490885 A CN107490885 A CN 107490885A CN 201710792276 A CN201710792276 A CN 201710792276A CN 107490885 A CN107490885 A CN 107490885A
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- Prior art keywords
- conductive welding
- chip
- signal wire
- bonding pad
- welding disk
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- 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
-
- 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
- G02F1/13458—Terminal pads
-
- 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
Abstract
The invention discloses a kind of display device, belongs to display technology field, including：Display panel, chip and FPC；FPC includes a plurality of first signal wire, multiple conductive welding disks, and the first signal wire is corresponded with conductive welding disk and set；Multiple conductive welding disks electrically connect with display panel；One end of first signal wire electrically connects with conductive welding disk, and the other end of the first signal wire electrically connects with chip；The length of a plurality of first signal wire is incomplete same；The resistance of multiple conductive welding disks is incomplete same；Wherein, the resistance for the conductive welding disk that the first longer signal wire of length is correspondingly arranged, the resistance for the conductive welding disk that first signal wire shorter less than length is correspondingly arranged.Relative to prior art, display inequality is improved, improves display quality.
Description
Technical field
The present invention relates to display technology field, more particularly, to a kind of display device.
Background technology
With the development of Display Technique, consumer is more and more diversified for the needs of display device.The display of narrow frame
Device has the advantages that light, attractive in appearance, receives liking for consumer.In the display device that prior art provides, COF is used
(Chip On FPC) technology is to reduce the width of frame.
Fig. 1 is refer to, Fig. 1 is a kind of planar structure schematic diagram for display device that prior art provides.It is aobvious shown in Fig. 1
Showing device includes display panel 01, FPC 02.Display device also includes chip 03, and chip 03 is used to handle display surface
Electric signal in plate 01.In order to reduce the area shared on display panel 01 of chip 03, chip 03 is arranged on flexible wires
On road plate 02.Pad 021 and signal wire 022 are provided with FPC 02, FPC 02 passes through pad 021 and display
Panel 01 is electrically connected, chip 03 is electrically connected by signal wire 022 with pad 021, so as to realize chip 03 and the electricity of display panel 01
Connection.This skill being arranged on chip (Chip) on FPC (Flexible Printed Circuit, abbreviation FPC)
Art is referred to as COF technologies.
In the display device that prior art provides, the size of pad 021 is identical and resistance is identical；More signal lines 022
Length is incomplete same, thus the resistance of more signal lines 022 is incomplete same, so the electric signal exported from chip 03 is passing through
The difference of the voltage drop after different signal wires 022, pad 021 is crossed, display panel 01 is caused after transmitting to display panel 01
Display is uneven, reduces display quality.
The content of the invention
In view of this, the invention provides a kind of display device.
The invention provides a kind of display device, including：Display panel, chip and FPC；FPC bag
The first bonding pad and a plurality of first signal wire are included, the first bonding pad includes multiple conductive welding disks, the first signal wire and conductive welding disk
Correspond and set；Multiple conductive welding disks electrically connect with display panel；One end of first signal wire electrically connects with conductive welding disk, the
The other end of one signal wire electrically connects with chip；The length of a plurality of first signal wire is incomplete same；The electricity of multiple conductive welding disks
Hinder incomplete same；Wherein, the resistance for the conductive welding disk that the first longer signal wire of length is correspondingly arranged, it is shorter less than length
The resistance for the conductive welding disk that first signal wire is correspondingly arranged.
Compared with prior art, display device provided by the invention, following beneficial effect is at least realized：
A kind of display device provided by the invention includes：Display panel, chip and FPC；FPC bag
The first bonding pad and a plurality of first signal wire are included, the first bonding pad includes multiple conductive welding disks, the first signal wire and conductive welding disk
Correspond and set；Chip is electrically connected by a plurality of first signal wire and multiple conductive welding disks with display panel.Due to a plurality of
The length of one signal wire is incomplete same, thus the resistance of a plurality of first signal wire is incomplete same.In cutting for the first signal wire
In the case of area identical, the resistance of the first signal wire that the resistance of the first longer signal wire of length is larger, length is shorter compared with
It is small.In display device provided by the invention, set the resistance of multiple conductive welding disks incomplete same, the first longer signal of length
The resistance for the conductive welding disk that line is correspondingly arranged, the resistance for the conductive welding disk that first signal wire shorter less than length is correspondingly arranged；
In other words, the first larger signal wire of resistance electrically connects with the less conductive welding disk of resistance, so that the electric signal warp in chip
After crossing each first signal wire, the conductive welding disk being correspondingly arranged with first signal wire, voltage drop is identical or close.Relative to existing
There is technology, improve display inequality, improve display quality.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is a kind of planar structure schematic diagram for display device that prior art provides；
Fig. 2 is a kind of planar structure schematic diagram of display device provided in an embodiment of the present invention；
Fig. 3 is the partial structural diagram for the display device that Fig. 2 is provided；
Fig. 4 is the partial structural diagram of another display device provided in an embodiment of the present invention；
Fig. 5 is the partial structural diagram of another display device provided in an embodiment of the present invention；
Fig. 6 is the partial structural diagram of another display device provided in an embodiment of the present invention；
Fig. 7 is the partial structural diagram of another display device provided in an embodiment of the present invention；
Fig. 8 is the partial structural diagram of another display device provided in an embodiment of the present invention；
Fig. 9 is the partial structural diagram of another display device provided in an embodiment of the present invention.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless have in addition
Body illustrates that the unlimited system of part and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative to be never used as to the present invention below
And its application or any restrictions that use.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
Fig. 2 and Fig. 3 are refer to, Fig. 2 is a kind of planar structure schematic diagram of display device provided in an embodiment of the present invention, figure
3 be the partial structural diagram for the display device that Fig. 2 is provided.The embodiments of the invention provide a kind of display device, including：Display
Panel 10, chip 20 and FPC 30；FPC 30 includes the first bonding pad 31 and a plurality of first signal wire 40, the
One bonding pad 31 includes multiple conductive welding disks 50, and the first signal wire 40 corresponds with conductive welding disk 50 to be set；Multiple conductive welderings
Disk 50 electrically connects with display panel 10；One end of first signal wire 40 electrically connects with conductive welding disk 50, the first signal wire 40 it is another
One end electrically connects with chip 20；The length of a plurality of first signal wire 40 is incomplete same；The resistance of multiple conductive welding disks 50 is endless
It is exactly the same；Wherein, the resistance for the conductive welding disk 50 that the first longer signal wire 40 of length is correspondingly arranged, shorter less than length
The resistance for the conductive welding disk 50 that one signal wire 40 is correspondingly arranged.
The present embodiment provide display device in, display panel 10 has display function, can be liquid crystal display panel or
Person is organic electroluminescence display panel etc., and the present embodiment is not specifically limited to the concrete structure of display panel 10.
FPC (Flexible Printed Circuit, abbreviation FPC) includes the first bonding pad 31, the first connection
Area 31 includes multiple conductive welding disks 50, and conductive welding disk 50 is made using conductive material, usually metal material, multiple conductive welding disks
50 are used to electrically connect with display panel 10.FPC 30 also includes a plurality of first signal wire 40, and the first signal wire 40 is used for
Transmitting telecommunication number.First signal wire 40 electrically connects with chip 20.For example, optional, chip 20 includes multiple pins, each pin
Correspond and set with the first signal wire 40, the first signal wire 40 transmits the electric signal of chip 20 by pin.First signal wire
40 correspond setting with conductive welding disk 50.The electric signal of chip 20 passes through the first signal wire 40, right with first signal wire 40
Transmitted after the conductive welding disk 50 that should be set into display panel 10.
In order to reduce FPC 30 and chip 20 in a display device shared space, make display device frivolous
Change, the length D1 of chip 20 is less than the length D2 of the first bonding pad 31, thus the incomplete phase of length of a plurality of first signal wire 40
Together.Wherein, the length of a plurality of first signal wire 40 is incomplete same refers to, in a plurality of first signal wire 40, at least in the presence of one
The first signal wire of bar 40 is different from the length of remaining the first signal wire 40.When the sectional area of a plurality of first signal wire 40 is identical
When, the resistance for the first signal wire 40 that the resistance of the first longer signal wire 40 of length is larger, length is shorter is smaller.In chip 20
Voltage drop of the electric signal after a plurality of first signal wire 40 it is different.
In the display device that the present embodiment provides, set the resistance of multiple conductive welding disks 50 incomplete same, be, at least
It is different from the resistance of remaining conductive welding disk 50 in the presence of a conductive welding disk 50.Wherein, the first longer signal wire 40 of length is right
The resistance for the conductive welding disk 50 that should be set, the electricity for the conductive welding disk 50 that first signal wire 40 shorter less than length is correspondingly arranged
Resistance.Using the first signal wire 40 and the conductive welding disk 50 being correspondingly arranged as an overall structure, then display device is including multiple whole
Body structure.The integrally-built equivalent resistance for the resistance of the first signal wire 40 and the resistance of conductive welding disk 50 that is correspondingly arranged it
With.Technical scheme provided in an embodiment of the present invention can make multiple integrally-built resistance same or similar, so that chip
Voltage drop of the electric signal after multiple overall structures in 20 is same or similar, relative to prior art, can improve aobvious
Show inequality.
A kind of display device provided by the invention includes：Display panel, chip and FPC；FPC bag
The first bonding pad and a plurality of first signal wire are included, the first bonding pad includes multiple conductive welding disks, the first signal wire and conductive welding disk
Correspond and set；Chip is electrically connected by a plurality of first signal wire and multiple conductive welding disks with display panel.Due to a plurality of
The length of one signal wire is incomplete same, thus the resistance of a plurality of first signal wire is incomplete same.In cutting for the first signal wire
In the case of area identical, the resistance of the first signal wire that the resistance of the first longer signal wire of length is larger, length is shorter compared with
It is small.In display device provided by the invention, set the resistance of multiple conductive welding disks incomplete same, the first longer signal of length
The resistance for the conductive welding disk that line is correspondingly arranged, the resistance for the conductive welding disk that first signal wire shorter less than length is correspondingly arranged；
In other words, the first larger signal wire of resistance electrically connects with the less conductive welding disk of resistance, so that the electric signal warp in chip
After crossing each first signal wire, the conductive welding disk being correspondingly arranged with first signal wire, voltage drop is identical or close.Relative to existing
There is technology, improve display inequality, improve display quality.
In display device provided in an embodiment of the present invention, the incomplete same mode of the resistance of multiple conductive welding disks 50 is set
Have a variety of, it is, for example, possible to use the different conductive material of resistivity makes multiple conductive welding disks 50, or multiple conductive welderings are set
The physical parameter differences such as the length of disk 50, sectional area are to set the resistance of multiple conductive welding disks 50 incomplete same.
In some optional embodiments, Fig. 4 is refer to, Fig. 4 is another display device provided in an embodiment of the present invention
Partial structural diagram.Fig. 4 has continued to use Fig. 3 reference, and something in common repeats no more.The display dress that the present embodiment provides
In putting, x is arranged in order in the first direction for chip 20, the first bonding pad 31；Multiple conductive welding disks 50 x in the first direction length L
It is identical；Multiple conductive welding disks 50 y in a second direction width H is incomplete same；Second direction y is perpendicular to first direction x；Length
The width H for the conductive welding disk 50 that the first longer signal wire 40 is correspondingly arranged, first signal wire 40 correspondence shorter more than length
The width H of the conductive welding disk 50 of setting.In the display device that the present embodiment provides, by the width for setting multiple conductive welding disks 50
H is incomplete same to realize the resistance of multiple conductive welding disks 50.Specifically, the calculation formula R=ρ L/S (R according to resistance：Electricity
Resistance, S：Sectional area, L：Length, ρ：Resistivity), wherein, the length L of multiple conductive welding disks 50 is identical, and electricalresistivityρ is identical, therefore,
In the present embodiment, sectional area S affects the resistance of conductive welding disk 50.It is known, sectional area S=H*d, wherein, H is conductive welding disk
50 width, d are the thickness of conductive welding disk 50；During display device is manufactured, multiple conductive welding disks 50 are generally in same system
Make in technique and formed using same material, its thickness d is typically identical.Therefore, by setting the width of multiple conductive welding disks 50
It is identical to spend H portions, it is possible to achieve the resistance of multiple conductive welding disks 50 is incomplete same.Wherein, R=ρ L/S=ρ L/H*d, when
When ρ, L, d are identical, H is bigger, resistance R is smaller, conversely, when ρ, L, d are identical, H is smaller, resistance R is bigger.What the present embodiment provided
In display device, during display device is manufactured, existing ripe manufacturing process can be used, only need to change making leads
The parameter of the mask plate of electrical bonding pads, you can produce the incomplete same multiple conductive welding disks 50 of width H of y in a second direction, make
It is simple to make technique.The display device that the present embodiment provides, relative to prior art, display inequality is improved, improves display product
Matter.
In some optional embodiments, Fig. 5 is refer to, Fig. 5 is another display device provided in an embodiment of the present invention
Partial structural diagram.It is in place of Fig. 5 and Fig. 4 difference, in the display device shown in Fig. 5, multiple edges of conductive welding disk 50
Second direction y width H is identical, and multiple conductive welding disks 50 x in the first direction length L is incomplete same.Length it is longer
The length L for the conductive welding disk 50 that one signal wire 40 is correspondingly arranged, what first signal wire 40 shorter less than length was correspondingly arranged leads
The length L of electrical bonding pads 50.According to R=ρ L/S=ρ L/H*d, when ρ, H, d are identical, L is bigger, resistance R is bigger, conversely, when ρ, H,
When d is identical, L is smaller, resistance R is smaller., can be with during display device is manufactured in the display device that the present embodiment provides
Using existing ripe manufacturing process, it need to only change the parameter for the mask plate for making conductive welding disk, you can produce along first
The direction x incomplete same multiple conductive welding disks 50 of length L, manufacturing process is simple.The display device that the present embodiment provides, relatively
In prior art, display inequality is improved, improves display quality.
Fig. 4 and Fig. 5 it is exemplary illustrate to set the incomplete same specific embodiment party of the resistance of multiple conductive welding disks 50
Formula, but it is not limited only to this.
In some optional embodiments, Fig. 6 is refer to, Fig. 6 is another display device provided in an embodiment of the present invention
Partial structural diagram.Fig. 6 has continued to use Fig. 4 reference, and something in common repeats no more.The display dress that the present embodiment provides
In putting, on the basis of the display device that Fig. 4 is provided, y extends in a second direction for the first bonding pad 31；First bonding pad 31 includes
Y is arranged in order in a second direction the first sub- bonding pad 311, the second sub- 312 and the 3rd sub- bonding pad 313 of bonding pad；Second son
The width H of conductive welding disk 50 in bonding pad is identical；It is in larger distance with the second sub- bonding pad 312 in first sub- bonding pad 311
Conductive welding disk 50 width H, more than the width H of the conductive welding disk 50 in small distance with the second sub- bonding pad 312；3rd son
In bonding pad 313, the width H with the conductive welding disk 50 in larger distance of the second sub- bonding pad 312, more than with the second sub- bonding pad
The width H of 312 conductive welding disk 50 in small distance.Optionally, in the first bonding pad 31, multiple conductive welding disks 50 are along second party
A line is arranged as to y.
In the display device that Fig. 6 embodiments provide, in the second sub- bonding pad 312, multiple conductive welding disks 50 are corresponding to be set
The length of a plurality of first signal wire 402 be also identical, specifically, a plurality of first signal wire 402 can be prolonged with x in the first direction
Stretch, accordingly, the width H of the conductive welding disk 50 in the second sub- bonding pad of setting is identical.
In first sub- bonding pad 311, the length of corresponding a plurality of first signal wire 401 set of multiple conductive welding disks 50 is not
Together, the length of the first bigger signal wire 401 of the distance of the first signal wire of distance 402 is longer.Accordingly, the first sub- bonding pad
In 311, the width H with the conductive welding disk 50 in larger distance of the second sub- bonding pad 312, more than with the second sub- bonding pad 312
The width H of conductive welding disk 50 in small distance；In other words, with the conductive welding disk 50 in larger distance of the second sub- bonding pad 312
Resistance, less than the resistance of the conductive welding disk 50 in small distance with the second sub- bonding pad 312.
In 3rd sub- bonding pad 313, the length of corresponding a plurality of first signal wire 403 set of multiple conductive welding disks 50 is not
Together, the length of the first bigger signal wire 403 of the distance of the first signal wire of distance 402 is longer.Accordingly, the 3rd sub- bonding pad
In 313, the width H with the conductive welding disk 50 in larger distance of the second sub- bonding pad 312, more than with the second sub- bonding pad 312
The width H of conductive welding disk 50 in small distance；In other words, with the conductive welding disk 50 in larger distance of the second sub- bonding pad 312
Resistance, less than the resistance of the conductive welding disk 50 in small distance with the second sub- bonding pad 312.
In the display device that Fig. 6 embodiments provide, three sub- bonding pads are provided with the first bonding pad 31, respectively first
Sub- bonding pad 311, the second sub- 312 and the 3rd sub- bonding pad 313 of bonding pad, be correspondingly arranged according to three sub- bonding pads
The length of one signal wire 40, the width of the conductive welding disk 50 in each sub- bonding pad is set respectively, to adjust each conductive welding disk 50
Resistance.Wherein, the first larger signal wire of resistance electrically connects with the less conductive welding disk of resistance, so that the electric signal in chip
After each first signal wire, the conductive welding disk being correspondingly arranged with first signal wire, voltage drop is identical or close.Relative to
Prior art, display inequality is improved, improves display quality.
In some optional embodiments, Fig. 7 is refer to, Fig. 7 is another display device provided in an embodiment of the present invention
Partial structural diagram.Fig. 7 has continued to use Fig. 3 reference, and something in common repeats no more.Carried in any embodiment of the present invention
On the basis of the display device of confession, in the display device that the present embodiment provides, in the first bonding pad 31, multiple rows of conductive welding disk 50
It is classified as the row 502 of the first row 501 and second；Y is arranged multiple conductive welding disks 50 in the first row 501 in a second direction, the second row 502
In multiple conductive welding disks 50 in a second direction y arrange；X is arranged successively in the first direction for chip 20, the first row 501, the second row 502
Row；Second direction y is perpendicular to first direction x.In the display device that the present embodiment provides, multiple conductive welding disks 50 are segmented into two
Row is set, when the quantity of conductive welding disk 50 is identical, the width H of each conductive welding disk 50 can be set it is more wider, when
When conductive welding disk 50 electrically connects with display panel 10, the width of conductive welding disk 50 is wider and the precision of the cooperation of display panel 10 will
Ask lower, so as to the fine ratio of product for reducing the precision of FPC 30 and the binding of display panel 10, improving display device.
In some optional embodiments, please continue to refer to Fig. 7, the first signal wire 40 include the first subsignal line 40a and
Second subsignal line 40b；First subsignal line 40a is corresponded with multiple conductive welding disks 50 in the first row 501 and set；Second
Multiple conductive welding disks 50 in subsignal line 40b and the second row 502, which correspond, to be set；Of first subsignal line 40a and second
Y is arranged alternately signal wire 40b in a second direction.In the display device that the present embodiment provides, in order to avoid the first subsignal line 40a
Intersect with the second subsignal line 40b and cause short circuit, y is handed in a second direction by the first subsignal line 40a and the second subsignal line 40b
For setting；Optionally, multiple conductive welding disks 50 in the first row 501 are staggeredly set with multiple conductive welding disks 50 in the second row 502
Put, to realize that y is arranged alternately in a second direction by the first subsignal line 40a and the second subsignal line 40b.
In some optional embodiments, please continue to refer to Fig. 7, multiple conductive welding disks 50 in the first row 501 along
One direction x length L is A, and the x in the first direction of multiple conductive welding disks 50 in the second row 502 length L is B；Its
In, A ＞ B.In the display device that the present embodiment provides, the first subsignal line 40a is corresponding with the conductive welding disk 50 in the first row 501
Set, the second subsignal line 40b is correspondingly arranged with the conductive welding disk 50 in the second row 502.Because multiple in the second row 502 lead
Electrical bonding pads 50 are distant apart from chip 20, thus in some optional embodiments, the second subsignal line 40b length is big
In the first subsignal line 40a length, accordingly, the second subsignal line 40b resistance is more than the first subsignal line 40a electricity
Resistance.According to R=ρ L/S=ρ L/H*d, when ρ, H, d are identical, L is bigger, resistance R is bigger, conversely, when ρ, H, d are identical, L is got over
It is small, resistance R is smaller.The smaller of the length L settings of multiple conductive welding disks 50 in the second row 502 can be made in second row 502
Multiple conductive welding disks 50 resistance it is smaller so that electric signal in chip by the first subsignal line 40a, with first son
Conductive welding disk 50 in the first row 501 that signal wire 40a is correspondingly arranged, and the second subsignal line 40b and second subsignal
After conductive welding disk 50 in the second row 502 that line 40b is correspondingly arranged, voltage drop is identical or close.Relative to prior art, change
It is uneven to be apt to display, has improved display quality.
In some optional embodiments, Fig. 8 please be join, Fig. 8 is another display device provided in an embodiment of the present invention
Partial structural diagram.Fig. 8 has continued to use Fig. 7 reference, and the present embodiment is herein only on the basis of Fig. 7 display devices provided
On illustrate.On the basis of the display device that any embodiment of the present invention provides, the first bonding pad 31 and chip 20 are relative
Set；First bonding pad 31 is the first connection side 300 close to the side of chip 20；First connection side 300 includes the He of first end 301
Second end 302；Chip 20 is the first chip side 21 close to the side of the first bonding pad 31；First chip side 21 includes the 3rd end
213 and the 4th end 214；The connecting line at the end 213 of first end 301 and the 3rd is the first connecting line B1, the second end 302 and the 4th end
214 connecting line is the second connecting line B2；First connecting line B1, the second connecting line B2, the first connection are in 300, the first chip
21 limit step sector；At least one the first signal wires 40 are extended to outside step sector.It should be noted that the first connecting line B1
Do not actually existed on FPC 30 with the second connecting line B2, but in order to clearly illustrate the technology of the present embodiment
Scheme, the artificial line drawn.Prior art provide display device in, the first signal wire 40 may be contained within the step sector it
It is interior.The display device that the present embodiment provides, at least one the first signal wires 40 are extended to outside step sector, can make full use of ladder
The distance between walking line, the first adjacent signal wire 40 is entered in space outside shape area to be increased, and can prevent because of the first letter
The distance between number line 40 it is too small and caused by short circuit, improve the yield of manufacture display panel.First signal wire 40 extends to
After outside step sector, track lengths increase, by reducing the resistance for the conductive welding disk 50 being correspondingly arranged with first signal wire 40,
The integrally-built resistance caused by the length increase of the first signal wire 40 can be offset and become big.
In some optional embodiments, chip 20 also includes the second chip in 22, three chip 23 and fourth chip
Side 24；First chip while 21 with the second chip while 22 be oppositely arranged, the 3rd chip 24 is oppositely arranged at 23 and fourth chip；Prolong
Extend the first signal wire 40 outside fan section be electrically connected to the second chip in 22, three chip 23 and fourth chip side 24 in
Any one.It should be noted that being provided with pin in chip 20, the first signal wire 40 is electrically connected by pin with chip 20.
In the display device that the present embodiment provides, when when the first chip is in 21, the second chip, the 22, the 3rd chip is in 23 and fourth chip
Opening position is provided with pin corresponding to 24.The first signal wire 40 extended to outside fan section and the second chip side the 22, the 3rd
Chip any one of 24 electrical connection at 23 and fourth chip, can subtract the quantity of the pin of the side of the first chip side 21
It is small, make the distance between pin increase so that chip 20 and a plurality of first signal wire 40 contraposition precision reduce, improve aobvious
The yield of showing device.
In some optional embodiments, Fig. 9 is refer to, Fig. 9 is another display device provided in an embodiment of the present invention
Partial structural diagram.Fig. 9 has continued to use Fig. 4 reference, and something in common repeats no more.The present embodiment is herein only in Fig. 4
Illustrated on the basis of the display device of offer.It is flexible on the basis of the display device that any embodiment of the present invention provides
Wiring board 30 includes the first sub- sub- FPC 30b of FPC 30a and second；First sub- FPC 30a includes
First bonding pad 31 and a plurality of first signal wire 40；First sub- FPC 30a also includes a plurality of secondary signal line 42；Second
One end of signal wire 42 electrically connects with chip 20, and the other end of secondary signal line 42 electrically connects with the second sub- FPC 40b.
In the display device that the present embodiment provides, FPC 30 is spliced by the sub- FPC of two pieces of electrical connections, wherein,
First sub- FPC 30a is used for binding chip 20, and it is the transmitting telecommunication number of chip 20 that the second sub- FPC 30b, which is used for,.
It should be noted that display device provided in an embodiment of the present invention, can be mobile phone, computer, TV, car-mounted display
Other have the display device of display function to device etc., and the present invention is not specifically limited to this.
By above-described embodiment, display device provided by the invention, following beneficial effect is at least realized：
In a kind of display device that various embodiments of the present invention provide, including display panel, chip and FPC；It is flexible
Wiring board includes the first bonding pad and a plurality of first signal wire, and the first bonding pad includes multiple conductive welding disks, the first signal wire with
Conductive welding disk, which corresponds, to be set；Chip is electrically connected by a plurality of first signal wire and multiple conductive welding disks with display panel.By
It is incomplete same in the length of a plurality of first signal wire, thus the resistance of a plurality of first signal wire is incomplete same.In the first letter
In the case of the sectional area identical of number line, the resistance of the first longer signal wire of length is larger, length is shorter the first signal wire
Resistance it is smaller.In display device provided by the invention, set that the resistance of multiple conductive welding disks is incomplete same, and length is longer
The resistance for the conductive welding disk that first signal wire is correspondingly arranged, the conductive welding disk that first signal wire shorter less than length is correspondingly arranged
Resistance；In other words, the first larger signal wire of resistance electrically connects with the less conductive welding disk of resistance, so that the electricity in chip
For signal after each first signal wire, the conductive welding disk being correspondingly arranged with first signal wire, voltage drop is identical or close.Phase
For prior art, display inequality is improved, improves display quality.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel it should be understood that example above merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (10)
- A kind of 1. display device, it is characterised in that including：Display panel, chip and FPC；The FPC includes the first bonding pad and a plurality of first signal wire, and first bonding pad includes multiple conductive welderings Disk, first signal wire are corresponded with the conductive welding disk and set；The multiple conductive welding disk electrically connects with the display panel；One end of first signal wire electrically connects with the conductive welding disk, the other end and the chip of first signal wire Electrical connection；The length of a plurality of first signal wire is incomplete same；The resistance of the multiple conductive welding disk is incomplete same；Wherein,The resistance for the conductive welding disk that longer first signal wire of length is correspondingly arranged, shorter less than length described The resistance for the conductive welding disk that one signal wire is correspondingly arranged.
- 2. display device according to claim 1, it is characterised in thatThe chip, first bonding pad are arranged in order in the first direction；Length of the multiple conductive welding disk along the first direction is identical；The width of the multiple conductive welding disk in a second direction It is incomplete same；The second direction is perpendicular to the first direction；The width for the conductive welding disk that longer first signal wire of length is correspondingly arranged, shorter more than length described The width for the conductive welding disk that one signal wire is correspondingly arranged.
- 3. display device according to claim 2, it is characterised in thatFirst bonding pad extends along the second direction；First bonding pad includes the first sub- bonding pad, the second sub- bonding pad and the 3rd being arranged in order along the second direction Sub- bonding pad；The width of the conductive welding disk in the second sub- bonding pad is identical；In the first sub- bonding pad, the width of the conductive welding disk in larger distance with the described second sub- bonding pad, it is more than With the width of the conductive welding disk in small distance of the described second sub- bonding pad；In the 3rd sub- bonding pad, the width of the conductive welding disk in larger distance with the described second sub- bonding pad, it is more than With the width of the conductive welding disk in small distance of the described second sub- bonding pad.
- 4. display device according to claim 1, it is characterised in thatIn first bonding pad, the multiple conductive welding disk is arranged as a line along the second direction.
- 5. display device according to claim 1, it is characterised in thatIn first bonding pad, the multiple conductive welding disk is arranged as the first row and the second row；It is multiple in the first row The conductive welding disk arranges in a second direction, and multiple conductive welding disks in second row arrange in a second direction；The chip, the first row, second row are arranged in order in the first direction；The second direction is perpendicular to described One direction.
- 6. display device according to claim 5, it is characterised in thatThe length in the first direction of the multiple conductive welding disk in the first row is A, in second row The length in the first direction of the multiple conductive welding disk is B；Wherein, A ＞ B.
- 7. display device according to claim 5, it is characterised in thatFirst signal wire includes the first subsignal line and the second subsignal line；The first subsignal line is corresponded with multiple conductive welding disks in the first row and set；The second subsignal line is corresponded with multiple conductive welding disks in second row and set；The first subsignal line and the second subsignal line are arranged alternately along the second direction.
- 8. display device according to claim 1, it is characterised in thatFirst bonding pad and the chip are oppositely arranged；First bonding pad is the first connection side close to the side of the chip；The first connection side includes first end and the Two ends；The chip is the first chip side close to the side of first bonding pad；The first chip side includes the 3rd end and the Four ends；The connecting line at the first end and the 3rd end is the connecting line of the first connecting line, second end and the 4th end For the second connecting line；First connecting line, second connecting line, the first connection side, the first chip margin make step sector；At least one first signal wire is extended to outside the step sector.
- 9. display device according to claim 8, it is characterised in thatThe chip also includes the second chip in, three chip and fourth chip side；The first chip side and described second Chip side is oppositely arranged, the 3rd chip while and be oppositely arranged during the fourth chip；First signal wire extended to outside the fan section is electrically connected to second chip in, three chip Any one of with the fourth chip side.
- 10. display device according to claim 1, it is characterised in thatThe FPC includes the first sub- FPC and the second sub- FPC；The first sub- FPC includes first bonding pad and a plurality of first signal wire；First son is flexible Wiring board also includes a plurality of secondary signal line；One end of the secondary signal line electrically connects with the chip, and the other end of the secondary signal line and the described second son are soft Property circuit board electrical connection.
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| CN201710792276.1A CN107490885B (en) | 2017-09-05 | 2017-09-05 | Display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710792276.1A CN107490885B (en) | 2017-09-05 | 2017-09-05 | Display device |
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| CN107490885B CN107490885B (en) | 2021-03-09 |
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| CN112669756A (en) * | 2020-12-29 | 2021-04-16 | 厦门天马微电子有限公司 | Array substrate, driving chip and display device |
| CN113075824A (en) * | 2021-04-06 | 2021-07-06 | 天马微电子股份有限公司 | Display module, manufacturing method thereof and display device |
| WO2021253156A1 (en) * | 2020-06-15 | 2021-12-23 | 京东方科技集团股份有限公司 | Display panel and display device |
| EP4120011A4 (en) * | 2020-03-13 | 2023-08-09 | BOE Technology Group Co., Ltd. | Display panel and display device |
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