CN105575994A - Fan-out line structure of AMOLED display panel - Google Patents
Fan-out line structure of AMOLED display panel Download PDFInfo
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- CN105575994A CN105575994A CN201410572652.2A CN201410572652A CN105575994A CN 105575994 A CN105575994 A CN 105575994A CN 201410572652 A CN201410572652 A CN 201410572652A CN 105575994 A CN105575994 A CN 105575994A
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- out line
- amoled display
- display floater
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Abstract
The invention relates to a fan-out line structure of an AMOLED display panel. The fan-out line structure comprises a first metal layer and a second metal layer, the first metal layer and the second metal layer are arranged in a mutually laminated manner, first fan-out lines in parallel arrangement are formed on the first metal layer in an etched manner, and second fan-out lines in parallel arrangement are formed on the second metal layer in the etched manner. According to the invention, the first fan-out lines and the second fan-out lines are etched in the two different metal layers respectively, and thus not limited by the process and the machine capability, the horizontal distance between the first fan-out lines and the second fan-out lines can be made very near, the width of the circuit board area of the AMOLED display panel is reduced, and the problems that the metal lines in the same layer are limited by the process and the machine capability and the horizontal distance between the fan-out lines cannot be reduced in the prior art are solved.
Description
Technical field
The present invention relates to AMOLED display floater, refer in particular to a kind of Fanout line structure of AMOLED display floater.
Background technology
AMOLED display floater has viewing area (displayarea) and periphery circuit region (peripheralcircuitarea).Be configured with multiple pixel (pixel) in viewing area to form pel array, periphery circuit region is then provided with perimeter circuit (peripheralcircuit).The pixel electrode that each pixel comprises thin-film transistor (TFT) and is connected with this thin-film transistor, and each pixel is surrounded by two adjacent scan lines and two adjacent data wires.Usually, these scan lines and data wire can extend to periphery circuit region by viewing area, and are electrically connected by peripheral circuit and driving chip (driverIC).Generally speaking, driving chip has specific size design, peripheral circuit can form fan-out (fanout) line by the one end connecting scan line and data wire in the set of regions at driving chip place, and the region forming fan-out line is then called fanout area (fanoutarea).
Coordinate referring to shown in Fig. 1, be the structural representation of existing a kind of AMOLED display floater, AMOLED display floater comprises wiring board region 90, viewing area 91, lead plate (OLB) 92, driving chip 93 and flexible PCB (FPC) 96.Wherein, be covered with holding wire and thin-film transistor in viewing area 91, driving chip 93 is electrically connected by the pin 95 of fan-out line 94 by the holding wire of viewing area 91 and lead plate 92, and flexible PCB 96 is electrically connected by fan-out line 94 and driving chip 93.
Nowadays the width trend tendency in the wiring board region of AMOLED panel is more and more narrow, as shown in Figure 1, the fan-out line 94 of existing AMOLED display floater is same layer metal wire, composition graphs 2 is with shown in Fig. 3 again, on the one hand with between layer metal wire because of processing procedure and the limitation problem (all having the board limit to consider because expose and developing) of board ability, lateral separation distance a between fan-out line 94 cannot be fabricated into very little, causes the width in the wiring board region 90 that cannot reduce AMOLED panel.If on the other hand the lateral separation distance between the fan-out line 94 of same layer metal wire is fabricated into very little, ratio line/space between spacing (space) so between the width (line) of fan-out line and fan-out line will increase, can easily cause the problem be short-circuited between fan-out line 94 again, cause the yield of product to reduce.
Therefore because AMOLED panel itself is with the process margins problem between layer metal wire, the requirement that the width that always cannot overcome the wiring board region of AMOLED panel progresses greatly, cause the width in the wiring board region of AMOLED panel to reduce, therefore be how the important problem of urgently to be resolved hurrily one in this area by the narrowed width in the wiring board region of AMOLED panel.
Summary of the invention
Because the problems referred to above, the invention provides a kind of Fanout line structure of AMOLED display floater, comprise: the first metal layer and the second metal level, described the first metal layer and the mutual stacked setting of described second metal level, on described the first metal layer, etching is formed with the first fan-out line of spacing arrangement, and on described second metal level, etching is formed with the second fan-out line of spacing arrangement.
The Fanout line structure of AMOLED display floater of the present invention, first fan-out line and the second fan-out line are etched respectively on the first metal layer and the second metal level being formed at mutual stacked setting, therefore the restriction of processing procedure and board ability can not be subject to, just the lateral separation distance between the projection on the first metal layer of the second fan-out line and the first fan-out line can be fabricated into very little, and then reduce the width in wiring board region of AMOLED display floater, solve in prior art with the limitation problem because of processing procedure and board ability between layer metal wire, the problem that lateral separation distance between fan-out line cannot reduce.
The further improvement of the Fanout line structure of AMOLED display floater of the present invention is, described second fan-out line relative to described first fan-out line in being staggered.
The further improvement of the Fanout line structure of AMOLED display floater of the present invention is, described the first metal layer and described second metal level are the metal level of same material.
The further improvement of the Fanout line structure of AMOLED display floater of the present invention is, described the first metal layer and described second metal level are the metal level of different materials.Because the impedance of the metal level of different materials is different, can better reduce the probability be short-circuited between the first fan-out line and the second fan-out line, and then improving product process rate.
The further improvement of the Fanout line structure of AMOLED display floater of the present invention is, described first fan-out line is for lay equally spacedly, and described second fan-out line is for lay equally spacedly.
The further improvement of the Fanout line structure of AMOLED display floater of the present invention is, described first fan-out line is identical with the width of described second fan-out line.
The further improvement of the Fanout line structure of AMOLED display floater of the present invention is, the width of described first fan-out line and described second fan-out line is 3.5 μm.
The further improvement of the Fanout line structure of AMOLED display floater of the present invention is, the spacing of the projection of described second fan-out line on described the first metal layer and described first fan-out line is 1.25 μm.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing a kind of AMOLED display floater.
Fig. 2 is the structural representation of the fanout area of AMOLED display floater in Fig. 1.
Fig. 3 is the spacing figure between the fan-out line in Fig. 2 in fanout area.
Fig. 4 is the schematic diagram of the Fanout line structure of AMOLED display floater of the present invention.
Fig. 5 is the structural representation of the fanout area of AMOLED display floater of the present invention.
Fig. 6 is the spacing figure in Fig. 4 between fan-out line.
Fig. 7 is the AMOLED display panel structure schematic diagram of the Fanout line structure adopting AMOLED display floater of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 4 is the schematic diagram of the Fanout line structure of AMOLED display floater of the present invention, coordinate referring to Fig. 4, the Fanout line structure of AMOLED display floater of the present invention, comprise: the first metal layer and the second metal level, described the first metal layer and the mutual stacked setting of described second metal level, on described the first metal layer, etching is formed with the first fan-out line 110 of spacing arrangement, and on described second metal level, etching is formed with the second fan-out line 210 of spacing arrangement.Preferably, the second fan-out line 210 is relative to the first fan-out line 110 in being staggered, and the first fan-out line 110 is for lay equally spacedly, and the second fan-out line 210 is for lay equally spacedly.Owing to present invention focuses on Fanout line structure, dependency structure such as the structures such as substrate, insulating barrier, passivation layer that therefore metal level or fan-out line may relate to do not repeat them here.
Further, described the first metal layer and described second metal level both can adopt the metal level of same material, also can adopt the metal level of different materials.Preferably, described the first metal layer and described second metal level adopt the metal level of different materials, because the impedance of the metal level of different materials is different, the probability be short-circuited between the first fan-out line 110 and the second fan-out line 210 better can be reduced, and then improving product process rate.
Fig. 5 is the structural representation of the fanout area of AMOLED display floater of the present invention, coordinate see Fig. 5, wherein, the pin of the holding wire of viewing area and lead plate is electrically connected by the first fan-out line 110 and the second fan-out line 210 by the driving chip 30 of AMOLED display floater, and flexible PCB 40 is electrically connected with driving chip 30 by the first fan-out line 110 and the second fan-out line 210.
Coordinate referring to shown in Fig. 6, the Fanout line structure of AMOLED display floater of the present invention, first fan-out line 110 and the second fan-out line 210 are etched respectively on the first metal layer and the second metal level being formed at mutual stacked setting, and the second fan-out line 210 relative to the first fan-out line 110 in being staggered, therefore the restriction of processing procedure and board ability can not be subject to, just can the lateral separation distance e between the projection on the first metal layer of the second fan-out line 210 and the first fan-out line 110 be fabricated into very little, and then reduce the width in wiring board region of AMOLED display floater, solve in prior art with the limitation problem because of processing procedure and board ability between layer metal wire, the problem that lateral separation distance between fan-out line cannot reduce.Particularly, in the present embodiment, the width c of the first fan-out line 110 is identical with the width d of the second fan-out line 210, is 3.5 μm.The spacing e of the projection of the second fan-out line 210 on described the first metal layer and the first fan-out line 110 is 1.25 μm.
Below by way of calculating, the Fanout line structure of the AMOLED display floater of prior art and the Fanout line structure of AMOLED display floater of the present invention are compared:
First referring to shown in Fig. 6, the Fanout line structure of AMOLED display floater of the present invention, the width c of the first fan-out line 110 and width d of the second fan-out line 210 is 3.5 μm, the total quantity of the first fan-out line 110 and the second fan-out line 210 is set to 1024, on the described the first metal layer being formed at mutual stacked setting respectively due to the first fan-out line 110 and the second fan-out line 210 and described second metal level, and the second fan-out line 210 relative to the first fan-out line 110 in being staggered, therefore the restriction of processing procedure and board ability is not subject to, lateral separation distance e between the projection of the second fan-out line 210 on described the first metal layer and the first fan-out line 110 can be accomplished 1.25 μm, the width of so whole fanout area is:
1024×(3.5+1.25)＝1024×4.75＝4864μm。
Shown in Fig. 4, the Fanout line structure of the AMOLED display floater of prior art, fan-out line 94 is same layer metal wire, suppose that the width b of fan-out line 94 is also 3.5 μm, the total quantity of fan-out line 94 is set to 1024, because of the limitation problem of processing procedure and board ability, the lateral separation distance a between fan-out line 94 is minimum can only accomplish 3.75 μm, and the width of so whole fanout area is:
1024×(3.5+3.75)＝1024×7.25＝7424μm。
Fig. 7 is the AMOLED display panel structure schematic diagram of the Fanout line structure adopting AMOLED display floater of the present invention.Consult Fig. 7 and can draw in conjunction with above-mentioned comparison result, the width of fanout area is reduced 2560 μm by the present invention, width by the wiring board region 50 of AMOLED display floater also reduces 2560 μm, also the width of the viewing area 60 of AMOLED display floater is added, compared to the existing AMOLED display floater of Fig. 1, there is significant progress.
The above is only present pre-ferred embodiments, not any type of restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, not departing from the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. a Fanout line structure for AMOLED display floater, is characterized in that, comprising:
The first metal layer and the second metal level, described the first metal layer and the mutual stacked setting of described second metal level, on described the first metal layer, etching is formed with the first fan-out line of spacing arrangement, and on described second metal level, etching is formed with the second fan-out line of spacing arrangement.
2. the Fanout line structure of AMOLED display floater as claimed in claim 1, is characterized in that described second fan-out line relative to described first fan-out line in being staggered.
3. the Fanout line structure of AMOLED display floater as claimed in claim 1, is characterized in that described the first metal layer and described second metal level are the metal level of same material.
4. the Fanout line structure of AMOLED display floater as claimed in claim 1, is characterized in that described the first metal layer and described second metal level are the metal level of different materials.
5. the Fanout line structure of the AMOLED display floater according to any one of Claims 1-4, it is characterized in that described first fan-out line is for lay equally spacedly, described second fan-out line is for lay equally spacedly.
6. the Fanout line structure of AMOLED display floater as claimed in claim 5, is characterized in that described first fan-out line is identical with the width of described second fan-out line.
7. the Fanout line structure of AMOLED display floater as claimed in claim 6, is characterized in that the width of described first fan-out line and described second fan-out line is 3.5 μm.
8. the Fanout line structure of the AMOLED display floater as described in claim 1,6 or 7, is characterized in that the spacing of the projection of described second fan-out line on described the first metal layer and described first fan-out line is 1.25 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410572652.2A CN105575994A (en) | 2014-10-23 | 2014-10-23 | Fan-out line structure of AMOLED display panel |
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| CN201410572652.2A CN105575994A (en) | 2014-10-23 | 2014-10-23 | Fan-out line structure of AMOLED display panel |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106548757A (en) * | 2017-01-10 | 2017-03-29 | 深圳市华星光电技术有限公司 | A kind of drive circuit and display device |
| CN107204346A (en) * | 2017-07-27 | 2017-09-26 | 厦门天马微电子有限公司 | Array base palte, display panel and display device |
| CN108415601A (en) * | 2018-03-12 | 2018-08-17 | 京东方科技集团股份有限公司 | Wire structures and its manufacturing method, display device |
| WO2019080200A1 (en) * | 2017-10-26 | 2019-05-02 | 惠科股份有限公司 | Fan-out line structure and manufacturing method therefor |
| WO2019080201A1 (en) * | 2017-10-26 | 2019-05-02 | 惠科股份有限公司 | Fan-out line structure and manufacturing method therefor |
| WO2020124913A1 (en) * | 2018-12-18 | 2020-06-25 | 武汉华星光电半导体显示技术有限公司 | Flexible display device |
| CN111667765A (en) * | 2020-06-28 | 2020-09-15 | 武汉华星光电技术有限公司 | Fan-out line structure, display panel and display device |
| WO2021051846A1 (en) * | 2019-09-19 | 2021-03-25 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display apparatus |
-
2014
- 2014-10-23 CN CN201410572652.2A patent/CN105575994A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548757A (en) * | 2017-01-10 | 2017-03-29 | 深圳市华星光电技术有限公司 | A kind of drive circuit and display device |
| WO2018129778A1 (en) * | 2017-01-10 | 2018-07-19 | 深圳市华星光电技术有限公司 | Drive circuit and display device |
| CN107204346A (en) * | 2017-07-27 | 2017-09-26 | 厦门天马微电子有限公司 | Array base palte, display panel and display device |
| CN107204346B (en) * | 2017-07-27 | 2019-09-24 | 厦门天马微电子有限公司 | Array substrate, display panel and display device |
| WO2019080200A1 (en) * | 2017-10-26 | 2019-05-02 | 惠科股份有限公司 | Fan-out line structure and manufacturing method therefor |
| WO2019080201A1 (en) * | 2017-10-26 | 2019-05-02 | 惠科股份有限公司 | Fan-out line structure and manufacturing method therefor |
| CN108415601A (en) * | 2018-03-12 | 2018-08-17 | 京东方科技集团股份有限公司 | Wire structures and its manufacturing method, display device |
| US11630534B2 (en) | 2018-03-12 | 2023-04-18 | Ordos Yuansheng Optoelectronics Co., Ltd. | Wiring structure, manufacturing method thereof, and display device |
| WO2020124913A1 (en) * | 2018-12-18 | 2020-06-25 | 武汉华星光电半导体显示技术有限公司 | Flexible display device |
| WO2021051846A1 (en) * | 2019-09-19 | 2021-03-25 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display apparatus |
| CN111667765A (en) * | 2020-06-28 | 2020-09-15 | 武汉华星光电技术有限公司 | Fan-out line structure, display panel and display device |
| WO2022000634A1 (en) * | 2020-06-28 | 2022-01-06 | 武汉华星光电技术有限公司 | Fanout line structure, display panel, and display apparatus |
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