CN106548757A - A kind of drive circuit and display device - Google Patents
A kind of drive circuit and display device Download PDFInfo
- Publication number
- CN106548757A CN106548757A CN201710015815.0A CN201710015815A CN106548757A CN 106548757 A CN106548757 A CN 106548757A CN 201710015815 A CN201710015815 A CN 201710015815A CN 106548757 A CN106548757 A CN 106548757A
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- Prior art keywords
- fan
- out line
- metal layer
- drive circuit
- sub
- Prior art date
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Classifications
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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
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of drive circuit and display device, and the drive circuit includes driving chip, for providing drive signal；Portion is fanned out to, for the drive signal is delivered in the viewing area of display floater；The portion of being fanned out to includes：Main fan-out line and sub- fan-out line, the main fan-out line are obtained by carrying out patterned process to the first metal layer；The sub- fan-out line is obtained by carrying out patterned process to second metal layer.The drive circuit and display device of the present invention, can reduce the size of panel border.
Description
【Technical field】
The present invention relates to display technology field, more particularly to a kind of drive circuit and display device.
【Background technology】
With the continuous development of display floater, the actuation techniques towards display floater also develop constantly.It is existing aobvious
Show that panel generally includes array base palte and color membrane substrates.Be provided with array base palte a plurality of data lines, multi-strip scanning line and
The multiple pixel cells limited by data wire and scan line.
The frame of display floater is the distance between glass edge and viewing area.Frame is mainly by OLB (Outer Lead
Bonding) area, fan-out area and three part of electrostatic circuit protection zone composition.OLB areas are used for the region for accessing external signal,
Fan-out area is for being input into viewing area by external input signal.Electrostatic circuit is protected for protecting the electronics of viewing area first
Part.
As fan-out area occupies the space of the larger part of frame, therefore cause the frame of panel larger, be unfavorable for narrow
The design of frame.
Therefore, it is necessary to a kind of drive circuit and display device are provided, to solve the problems of prior art.
【The content of the invention】
It is an object of the invention to provide a kind of drive circuit and display device, can reduce the size of panel border.
To solve above-mentioned technical problem, the present invention provides a kind of drive circuit, and which includes：
Driving chip, for providing drive signal；
Portion is fanned out to, for the drive signal is delivered in the viewing area of display floater；The portion of being fanned out to includes：It is main
Fan-out line and sub- fan-out line, the main fan-out line are obtained by carrying out patterned process to the first metal layer；The sub- fan
Outlet is obtained by carrying out patterned process to second metal layer.
In the drive circuit of the present invention, it is crisscross arranged between the main fan-out line and the sub- fan-out line.
In the drive circuit of the present invention, the two ends of the two ends of the main fan-out line and the sub- fan-out line are both provided with connecting
End is connect, the connection end includes the first metal layer and the second metal layer.
It is in the drive circuit of the present invention, when the main fan-out line is connected with the data wire of the display floater, described
The first metal layer and second metal layer of the corresponding connection end of main fan-out line is electrically connected with；
When the sub- fan-out line is connected with the scan line of the display floater, the corresponding connection end of the sub- fan-out line
The first metal layer and second metal layer are electrically connected with.
In the drive circuit of the present invention, the width of the second metal layer is less than the width of the first metal layer.
In the drive circuit of the present invention, the width of the main fan-out line is located in the range of predetermined width.
In the drive circuit of the present invention, between the first metal layer and the second metal layer, insulating barrier is provided with.
In the drive circuit of the present invention, the thickness of the insulating barrier is located in the range of preset thickness.
In the drive circuit of the present invention, the thickness of the second metal layer is less than the thickness of the first metal layer.
The present invention also provides a kind of display device, and which includes：Display floater and above-mentioned drive circuit.
The drive circuit and display device of the present invention, by the fan-out line of the first metal layer forming part, by second metal layer
The fan-out line of remainder is formed, the spacing between fan-out line in same layer is increased, so as to reduce the width of fan-out area,
Reduce the frame size of panel.
【Description of the drawings】
Fig. 1 is the structural representation of existing fan-out line.
Fig. 2 is the structural representation of the display device of the present invention.
Fig. 3 is the structural representation for being fanned out to portion of the present invention.
Top views of the Fig. 4 for the connection end in Fig. 3.
Generalized sections of the Fig. 5 for the connection end in Fig. 4.
【Specific embodiment】
The explanation of following embodiment is, with reference to additional schema, to may be used to the particular implementation implemented to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, for example " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side "
Deng being only the direction with reference to annexed drawings.Therefore, the direction term for using is to illustrate and understand the present invention, and is not used to
Limit the present invention.In figure, the similar unit of structure is represented with identical label.
Fig. 1 is refer to, Fig. 1 is the structural representation of existing fan-out line of the invention.
As shown in figure 1, existing fan-out area includes a plurality of fan-out line 11, the two ends 12 of every fan-out line 11 and fan-out line
11 are all exposed by same layer metal level, developing obtains.The distance between wherein every 11 two ends of fan-out line are L1.
Fig. 2 is refer to, Fig. 2 is a structural representation of display device of the present invention.
As shown in Fig. 2 drive circuit includes driving chip 21 and is fanned out to portion；Wherein driving chip 21 includes source drive chip
With grid driving chip, for providing data signal, grid driving chip is used to provide scanning signal source drive chip.
The portion of being fanned out to includes main fan-out line 23 and sub- fan-out line 24, and the portion of being fanned out to connects driving chip 21 and display floater 22,
For the drive signal is delivered in the viewing area of display floater 22.Specifically, this is fanned out to portion and is transferred to scanning signal
In the scan line of the display floater 22, and data signal is transferred in the data wire of the display floater 22.
The main fan-out line 23 is obtained by carrying out patterned process to the first metal layer；The sub- fan-out line 24 is
By carrying out what patterned process was obtained to second metal layer.Namely the main fan-out line 23 is located at Bu Tong gold with the sub- fan-out line 24
Category layer.
With reference to Fig. 3, as the main fan-out line 23 and the sub- fan-out line 24 are located at different layers, so that being located in same layer
Gap ratio between two neighboring main fan-out line or sub- fan-out line is larger, by spacing exchange between fan-out line two ends away from
From now the distance between main fan-out line or sub- fan-out line two ends are L2, and L2 is less than L1, so as to shorten the width of fan-out area
Degree.
In one embodiment, it is crisscross arranged between the main fan-out line 23 and the sub- fan-out line 24.In such as Fig. 2 from
Left-to-right, first is sub- fan-out line, and fan-out line based on Article 2, Article 3 are sub- fan-out line, and remaining is similar.Due to this
Be crisscross arranged between main fan-out line 23 and the sub- fan-out line 24 so that be located at same layer in two neighboring main fan-out line or
Spacing between sub- fan-out line further increases, and preferably shortens the width of fan-out area.
In one embodiment, be fanned out to portion it is left half side all based on fan-out line 23, be fanned out to the right half side of portion and be all fanned out to for son
Line 24.Specifically the main fan-out line 23 and the sub- fan-out line 24 can be bent arrangement, to exchange the width of fan-out area for.
With reference to Fig. 4, the two ends of the main fan-out line 23 and the sub- fan-out line 24 are both provided with connection end 25, the connection
End 25 includes the first metal layer 251 and the second metal layer 252.The second metal layer 252 is located at the first metal layer
On 251.The material of the first metal layer 251 can be metal material with the material of the second metal layer 252, preferably copper, from
And can preferably reduce the impedance of main fan-out line or sub- fan-out line.The material of the first metal layer 251 and second metal
The material of layer 252 can be with identical.
As main fan-out line 23 and sub- fan-out line 24 are located at different metal layer, and data wire also is located at Bu Tong gold with scan line
Category layer, therefore connection end is set to into double layer of metal structure, can improve between display floater and main fan-out line or sub- fan-out line
Connective stability.Further, since the connecting line of periphery need not be arranged, production cost can also be reduced.
As shown in figure 4, width W1s of the width W2 of the second metal layer 252 less than the first metal layer 251.If two-layer
The width of metal level is equal, exposing to second metal layer 252, develop or etching process in, be easily caused connection end occur it is short
Road, therefore the width of second metal layer 252 is set smaller than the width of the first metal layer 251, can prevent connection end from occurring
Short circuit, so as to reduce production cost.
There is short circuit, the width W1 of the first metal layer 251 and the second metal layer 252 to be better protected from connection end
Width W2 between difference be located at predetermined width in the range of.If both width differentials are less, in exposure, development or etched
Cheng Zhong, it is impossible to prevent from well connecting terminal shortcircuit.If both width differentials are larger, increase the size of fan-out area, so as to increase
The big size of panel.
There is short circuit to be better protected from connection end, the width W1 scopes of the first metal layer 251 are 6-8 microns.
There is short circuit to be better protected from connection end, the width W2 scopes of the second metal layer 252 are 1-6 microns, are entered
One step is preferably 2-6 microns.
In order to reduce the impedance of main fan-out line, the width of the main fan-out line 23 is located in the range of predetermined width.In order to subtract
The impedance of boy's fan-out line, the width of the sub- fan-out line 24 are located in the range of predetermined width.
When the main fan-out line 23 is connected with the data wire of the display floater 22,23 corresponding company of the main fan-out line
The first metal layer 251 and second metal layer 252 for connecing end is electrically connected with；When the sub- fan-out line 24 and the display floater 22
When scan line connects, the first metal layer 251 and second metal layer 252 of 24 corresponding connection end of the sub- fan-out line electrically connect
Connect.Specifically, the second metal layer 252 is electrically connected with the first metal layer 251 by via.
With reference to Fig. 5, between the first metal layer 251 and the second metal layer 252, insulating barrier 253 is provided with.
In order to preferably reduce RC delay, the thickness L of the insulating barrier 253 is located in the range of preset thickness.Such as, this is exhausted
The thickness range of edge layer 253 is 2000-6000 Ethylmercurichlorendimides.Wherein, the material of the insulating barrier 253 is SiO2Or silicon nitride.Due to
Thickness it is too big or too it is little be all unfavorable for reduce RC delay.It should be understood that being also equipped with the second metal layer 252 absolutely
Edge layer 254, for protecting second metal layer 252.
In order to preferably reduce RC delay, in one embodiment, the thickness H1 of the first metal layer 251 more than this
The thickness H2 of two metal levels 252.
The drive circuit of the present invention, by the fan-out line of the first metal layer forming part, forms remainder by second metal layer
Point fan-out line, increase the spacing between fan-out line in same layer, so as to reduce the width of fan-out area, reduce panel
Frame size.
The present invention also provides a kind of display device, as shown in Fig. 2 the display device of the present embodiment includes 22 He of display floater
Drive circuit, wherein display floater 22 include array base palte, color membrane substrates and between array base palte and color membrane substrates
Liquid crystal layer (not shown), wherein array base palte include data wire and scan line and are limited by data wire and scan line being formed
Multiple pixel cells.
As shown in Fig. 2 drive circuit includes driving chip 21 and is fanned out to portion；Wherein driving chip 21 includes source drive chip
With grid driving chip, for providing data signal, grid driving chip is used to provide scanning signal source drive chip.
The portion of being fanned out to includes main fan-out line 23 and sub- fan-out line 24, and the portion of being fanned out to connects driving chip 21 and display floater 22,
For the drive signal is delivered in the viewing area of display floater 22.Specifically, this is fanned out to portion and is transferred to scanning signal
In the scan line of the display floater 22, and data signal is transferred in the data wire of the display floater 22.
The main fan-out line 23 is obtained by carrying out patterned process to the first metal layer；The sub- fan-out line 24 is
By carrying out what patterned process was obtained to second metal layer.Namely the main fan-out line 23 and the sub- fan-out line 24 are located at difference
Layer.
With reference to Fig. 3, as the main fan-out line 23 and the sub- fan-out line 24 are located at different layers, so that being located in same layer
Gap ratio between two neighboring main fan-out line or sub- fan-out line is larger, by spacing exchange between fan-out line two ends away from
From now the distance between main fan-out line or sub- fan-out line two ends are L2, and L2 is less than L1, so as to shorten the width of fan-out area
Degree.
In one embodiment, it is crisscross arranged between the main fan-out line 23 and the sub- fan-out line 24.In such as Fig. 2 from
Left-to-right, first is sub- fan-out line, and fan-out line based on Article 2, Article 3 are sub- fan-out line, and remaining is similar.Due to this
Be crisscross arranged between main fan-out line 23 and the sub- fan-out line 24 so that be located at same layer in two neighboring main fan-out line or
Spacing between sub- fan-out line further increases, and preferably shortens the width of fan-out area.
In one embodiment, be fanned out to portion it is left half side all based on fan-out line 23, be fanned out to the right half side of portion and be all fanned out to for son
Line 24.Specifically the main fan-out line 23 and the sub- fan-out line 24 can be bent arrangement, to exchange the width of fan-out area for.
With reference to Fig. 4, the two ends of the main fan-out line 23 and the sub- fan-out line 24 are both provided with connection end 25, the connection
End 25 includes the first metal layer 251 and the second metal layer 252.The second metal layer 252 is located at the first metal layer
On 251.The material of the first metal layer 251 can be metal material with the material of the second metal layer 252, preferably copper, from
And can preferably reduce the impedance of main fan-out line or sub- fan-out line.The material of the first metal layer 251 and second metal
The material of layer 252 can be with identical.
As main fan-out line and sub- fan-out line are located at different metal layer, and data wire and scan line also are located at different metal
Layer, therefore connection end is set to into double layer of metal structure, can improve between display floater and main fan-out line or sub- fan-out line
Connective stability.Further, since the connecting line of periphery need not be arranged, production cost can also be reduced.
As shown in figure 4, width W1s of the width W2 of the second metal layer 252 less than the first metal layer 251.If two-layer
The width of metal level is equal, exposing to second metal layer 252, develop or etching process in, be easily caused connection end occur it is short
Road, therefore the width of second metal layer 252 is set smaller than the width of the first metal layer 251, can prevent connection end from occurring
Short circuit, so as to reduce production cost.
There is short circuit, the width W1 of the first metal layer 251 and the second metal layer 252 to be better protected from connection end
Width W2 between difference be located at predetermined width in the range of.If both width differentials are less, in exposure, development or etched
Cheng Zhong, it is impossible to prevent from well connecting terminal shortcircuit.If both width differentials are larger, increase the size of fan-out area, so as to increase
The big size of panel.
There is short circuit to be better protected from connection end, the width W1 scopes of the first metal layer 251 are 6-8 microns.
There is short circuit to be better protected from connection end, the width W2 scopes of the second metal layer 252 are 1-6 microns, are entered
One step is preferably 2-6 microns.
In order to reduce the impedance of main fan-out line, the width of the main fan-out line 23 is located in the range of predetermined width.In order to subtract
The impedance of boy's fan-out line, the width of the sub- fan-out line 24 are located in the range of predetermined width.
When the main fan-out line 23 is connected with the data wire of the display floater 22,23 corresponding company of the main fan-out line
The first metal layer 251 and second metal layer 252 for connecing end is electrically connected with；When the sub- fan-out line 24 and the display floater 22
When scan line connects, the first metal layer 251 and second metal layer 252 of 24 corresponding connection end of the sub- fan-out line electrically connect
Connect.Specifically, the second metal layer 252 is electrically connected with the first metal layer 251 by via.
With reference to Fig. 5, between the first metal layer 251 and the second metal layer 252, insulating barrier 253 is provided with.
In order to preferably reduce RC delay, the thickness L of the insulating barrier 253 is located in the range of preset thickness.Such as, this is exhausted
The thickness range of edge layer 253 is 2000-6000 Ethylmercurichlorendimides.Wherein, the material of the insulating barrier 253 is SiO2Or silicon nitride.Due to
Thickness it is too big or too it is little be all unfavorable for reduce RC delay.It should be understood that being also equipped with the second metal layer 252 absolutely
Edge layer 254, for protecting second metal layer 252.
In order to preferably reduce RC delay, in one embodiment, the thickness H1 of the first metal layer 251 more than this
The thickness H2 of two metal levels 252.
The display device of the present invention, by the fan-out line of the first metal layer forming part, forms remainder by second metal layer
Point fan-out line, increase the spacing between fan-out line in same layer, so as to reduce the width of fan-out area, reduce panel
Frame size.
In sum, although the present invention it is disclosed above with preferred embodiment, but above preferred embodiment and be not used to limit
The system present invention, one of ordinary skill in the art without departing from the spirit and scope of the present invention, can make various changes and profit
Adorn, therefore protection scope of the present invention is defined by the scope that claim is defined.
Claims (10)
1. a kind of drive circuit, it is characterised in that include：
Driving chip, for providing drive signal；
Portion is fanned out to, for the drive signal is delivered in the viewing area of display floater；The portion of being fanned out to includes：Master is fanned out to
Line and sub- fan-out line, the main fan-out line are obtained by carrying out patterned process to the first metal layer；The sub- fan-out line
Obtained by carrying out patterned process to second metal layer.
2. drive circuit according to claim 1, it is characterised in that hand between the main fan-out line and the sub- fan-out line
It is wrong to arrange.
3. drive circuit according to claim 1, it is characterised in that the two ends of the main fan-out line and the sub- fan-out line
Two ends be both provided with connection end, the connection end includes the first metal layer and the second metal layer.
4. drive circuit according to claim 1, it is characterised in that when the main fan-out line and the number of the display floater
When connecting according to line, the first metal layer and second metal layer of the corresponding connection end of the main fan-out line are electrically connected with；
When the sub- fan-out line is connected with the scan line of the display floater, the first of the corresponding connection end of the sub- fan-out line
Metal level and second metal layer are electrically connected with.
5. drive circuit according to claim 4, it is characterised in that the width of the second metal layer is less than described first
The width of metal level.
6. drive circuit according to claim 1, it is characterised in that the width of the main fan-out line is located at predetermined width model
In enclosing.
7. drive circuit according to claim 1, it is characterised in that the first metal layer and the second metal layer it
Between be provided with insulating barrier.
8. drive circuit according to claim 1, it is characterised in that the thickness of the insulating barrier is located at preset thickness scope
It is interior.
9. drive circuit according to claim 1, it is characterised in that the thickness of the second metal layer is less than described first
The thickness of metal level.
10. a kind of display device, it is characterised in that include：Display floater and drive circuit, the drive circuit are claim
Drive circuit described in any one of 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015815.0A CN106548757A (en) | 2017-01-10 | 2017-01-10 | A kind of drive circuit and display device |
| PCT/CN2017/073329 WO2018129778A1 (en) | 2017-01-10 | 2017-02-13 | Drive circuit and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015815.0A CN106548757A (en) | 2017-01-10 | 2017-01-10 | A kind of drive circuit and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106548757A true CN106548757A (en) | 2017-03-29 |
Family
ID=58396464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710015815.0A Pending CN106548757A (en) | 2017-01-10 | 2017-01-10 | A kind of drive circuit and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106548757A (en) |
| WO (1) | WO2018129778A1 (en) |
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| CN107170366A (en) * | 2017-07-21 | 2017-09-15 | 厦门天马微电子有限公司 | Display panel and display device |
| CN110047427A (en) * | 2018-12-17 | 2019-07-23 | 友达光电股份有限公司 | Display screen for virtual reality device |
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| CN106125418A (en) * | 2016-08-11 | 2016-11-16 | 深圳市华星光电技术有限公司 | Display device and display floater thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170366A (en) * | 2017-07-21 | 2017-09-15 | 厦门天马微电子有限公司 | Display panel and display device |
| CN110047427A (en) * | 2018-12-17 | 2019-07-23 | 友达光电股份有限公司 | Display screen for virtual reality device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018129778A1 (en) | 2018-07-19 |
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