WO2014036754A1 - Tft-lcd窄边框设计中的扇出走线的设计 - Google Patents
Tft-lcd窄边框设计中的扇出走线的设计 Download PDFInfo
- Publication number
- WO2014036754A1 WO2014036754A1 PCT/CN2012/081371 CN2012081371W WO2014036754A1 WO 2014036754 A1 WO2014036754 A1 WO 2014036754A1 CN 2012081371 W CN2012081371 W CN 2012081371W WO 2014036754 A1 WO2014036754 A1 WO 2014036754A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fan
- design
- metal layer
- tft
- line
- Prior art date
Links
- 238000013461 design Methods 0.000 title claims abstract description 69
- 229910052751 metal Inorganic materials 0.000 claims abstract description 75
- 239000002184 metal Substances 0.000 claims abstract description 75
- 238000005530 etching Methods 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 description 44
- 238000000034 method Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 239000002356 single layer Substances 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- 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
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
- G02F1/136295—Materials; Compositions; Manufacture processes
Definitions
- the present invention relates to a narrow frame design of a TFT-LCD, and more particularly to a design of a fan-out trace in a narrow frame design of a TFT-LCD.
- a TFT (Thin Film Transistor)-LCD is a thin film transistor LCD which is one of an active matrix type liquid crystal display (AM-LCD).
- LCD flat panel display, special TFT-LCD is the only display device that fully catches up and exceeds CRT in terms of brightness, contrast, power consumption, life, volume and weight. It has excellent performance and large-scale production characteristics. High degree of automation, low cost of raw materials, and broad development space will quickly become the mainstream products of the new century and a bright spot for global economic growth in the 21st century.
- the liquid crystal display panel has an effective active area and an eripheral circuit area.
- a plurality of pixels (pixels) are arranged in the effective display area to form a pixel array, and a peripheral circuit is provided in the peripheral circuit area.
- Each pixel includes a thin film transistor and a pixel electrode connected to the thin film transistor, and each pixel is surrounded by two adjacent scan lines and two adjacent data lines.
- these scan lines and data lines are extended from the effective display area to the peripheral circuit area, and are electrically connected to the driver IC through the peripheral circuits.
- the driver chip has a specific size design, and the peripheral circuit is formed by fan-centering by concentrating one end of the scan line and the data line toward the area where the driver chip is located.
- TFT-LCD has to go to a higher level of development and market demand, and needs a narrow bezel design to achieve perfect visual effects.
- the narrow bezel design requires a narrower effective display area (AA)-TFT distance, but currently the same metal layer design fanout routing method introduces many difficulties in the design process:
- the narrow bezel design requires a stricter fanout height, so it is required to introduce the Fanout line width + space ⁇ 9 ⁇ ;
- the metal (Metal) required for large-size TFT-LCD has a thick film thickness, and the critical dimension loss (CD LOSS) of wet etching (WET) is controlled at 2.5 ⁇ 1.0 ⁇ , so the product
- FIG. 1 is a schematic illustration of the critical dimensions of wet etched metal lines in the prior art.
- the first metal layer 11 is aluminum, the thickness is 3300 angstroms, the second metal layer 12 is molybdenum, and the thickness is 600 angstroms.
- the current double-layer overlap metal routing method is used because of wet etching of the product.
- FIG. 2 is a schematic diagram of a mask design of a single-layer metal fan-out trace in the prior art.
- the photolithographic mask 20 is disposed on the metal layer, and is wet-etched by the mask 20, if you want to follow FIG. 2
- the object of the present invention is to provide a fan-out route design in a narrow frame design of a TFT-LCD, which solves the problem that the current process conditions cannot achieve the line width + spacing 8 ⁇ of the fan-out trace.
- the present invention provides a fan-out trace design in a TFT-LCD narrow bezel design, comprising: a first metal layer for etching to form a first fan-out trace arranged in parallel and for etching to form a parallel arrangement a second metal layer of the second outgoing wire, the first metal layer and the second metal layer are arranged in parallel in a vertical direction and are substantially staggered, the line width of the first fan-out trace and the fan-out pitch and the second The line width and the fan-out pitch of the fan-out trace are equal, and the projection of the first fan-out trace on the second metal layer is parallel to the second fan-out trace and is equally spaced from the second fan-out trace.
- the first fanout trace is used as a data line or a gate line.
- the second fanout trace is used as a data line or a gate line.
- the first fanout trace is used as an odd-numbered data line and a gate line
- the second fan-out trace is used as an even-numbered data line and a gate line.
- the first fanout trace is used as a data line and a gate line which are ordered to be even, and the second fanout trace is used as an odd-numbered data line and a gate line.
- the fan-out pitch is 8 ⁇ .
- the fan-out pitch is 7 ⁇ m.
- the line width is 4.5 ⁇ m.
- the sheet resistances of the first metal layer and the second metal layer are equal.
- the sheet resistance of the first metal layer and the second metal layer is equal to 0.085.
- the present invention also provides a fan-out trace design in a TFT-LCD narrow bezel design, comprising: a first metal layer for etching to form a first fan-out trace arranged in parallel and a second fan for etching to form a parallel arrangement a second metal layer of the exit line, the first metal layer and the second metal layer are arranged in parallel in a vertical direction and are substantially staggered, and a line width of the first fan-out trace and a fan-out pitch and a second fan-out line The line width and the fan-out pitch are equal, and the projection of the first fan-out trace on the second metal layer is parallel to the second fan-out trace and is equidistantly staggered with the second fan-out trace;
- the first fanout trace is used as a data line or a gate line
- the second fanout trace is used as a data line or a gate line
- the first fan-out trace is used as an odd-numbered data line and a gate line
- the second fan-out trace is used as an even-numbered data line and a gate line
- the fan-out pitch is 8 ⁇
- the fan-out pitch is 7 ⁇ ⁇ ;
- the sheet resistance of the first metal layer and the second metal layer is equal to 0.085.
- the design of the fan-out trace in the TFT-LCD narrow bezel design of the present invention can achieve a pitch of 8 ⁇ m, reduce the fan-out height, and simultaneously increase the critical dimension of the metal, reduce the resistive load, and realize a narrow bezel design. . DRAWINGS
- FIG. 1 is a schematic view showing a key dimension of a wet-etched metal wire in the prior art
- FIG. 2 is a schematic view showing a mask design of a single-layer metal fan-out trace in the prior art
- FIG. 3 is a schematic structural view of a preferred embodiment of a fan-out trace in a narrow bezel design of a TFT-LCD according to the present invention
- FIG. 4 is a schematic diagram of a mask design for implementing the design of the fanout trace of the present invention. detailed description
- FIG. 3 it is a schematic structural view of a preferred embodiment of a fan-out trace in a TFT-LCD narrow bezel design of the present invention.
- the fan-out trace design mainly includes: a first metal layer for etching to form the first fan-out traces 31 arranged in parallel, and a second metal layer for etching to form the second fan-out traces 32 arranged in parallel, the first The metal layer and the second metal layer are arranged in parallel in the upper and lower directions and are substantially opposite to each other, and the line width and the fan-out pitch of the first fan-out trace 31 are equal to the line width and the fan-out pitch of the second fan-out trace 32.
- the projection of the first fanout trace 31 on the second metal layer is parallel to the second fanout trace 32 and is equally spaced from the second fanout trace 32. Since the present invention focuses on the fan-out trace design, the related structures such as the substrate, the insulating layer, the passivation layer, and the like which may be involved in the metal layer or the fan-out trace are not described herein.
- the fan-out trace design in the TFT-LCD narrow bezel design of the present invention uses a double-layer metal staggered manner to implement fan-out traces, thereby replacing the current double-layer overlay metal or only a single layer metal layer. Way of routing.
- the double-layer metal staggered way can achieve a larger critical line width (CD Line) and reduce the resistive load (R loading ).
- the first fan-out trace 31 serves as a data line or a gate line; the second fan-out trace 32 serves as a data line or a gate line.
- the first fanout trace 31 is used as an odd-numbered data line and a gate line, the second fan-out trace 32 is used as an even-numbered data line and a gate line; or the first fan-out trace 31 is used as a sort to an even number
- the data line and the gate line, and the second fan line 32 are used as data lines and gate lines sorted to an odd number.
- the sheet resistances of the first metal layer and the second metal layer may be equal and equal to 0.085.
- FIG 4 a schematic diagram of a mask design for implementing the design of the fanout trace of the present invention. Since the fan-out traces in the TFT-LCD narrow bezel design of the present invention are designed to realize fan-out traces by double-layer metal staggering, two masks 41 and masks can be applied in the process of etching to form fan-out traces. 42.
- the mask 41 and the mask 42 may respectively correspond to different metal layers, and thus may be formed separately.
- the line width/space (L/S) of the corresponding mask 41 or mask 42 for each layer of metal That is, the line width of the mask
- the fan-out trace formed Line width/pitch (L/S) 4.5 ⁇ /2.5 ⁇
- the overall fanout pitch (Fanout Pitch) 7 ⁇ m ⁇ 8 ⁇
- AEI CD critical dimension
- the design of the fan-out trace in the TFT-LCD narrow bezel design of the present invention can achieve a pitch pitch of ⁇ 8 ⁇ m, reduce the fan-out height, and simultaneously increase the metal key size (Metal CD). Small resistance load ( R loading ) for narrow frame design.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/699,220 US8817218B2 (en) | 2012-09-07 | 2012-09-14 | Fan-out wiring arrangement of TFT-LCD slim bezel arrangement |
DE112012006887.4T DE112012006887T5 (de) | 2012-09-07 | 2012-09-14 | Fan-Out-Verdrahtungsanordnung einer TFT-LCD-Anordnung mit schmalem Rahmen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012103303011A CN102799005A (zh) | 2012-09-07 | 2012-09-07 | Tft-lcd窄边框设计中的扇出走线的设计 |
CN201210330301.1 | 2012-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014036754A1 true WO2014036754A1 (zh) | 2014-03-13 |
Family
ID=47198149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2012/081371 WO2014036754A1 (zh) | 2012-09-07 | 2012-09-14 | Tft-lcd窄边框设计中的扇出走线的设计 |
Country Status (3)
Country | Link |
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CN (1) | CN102799005A (zh) |
DE (1) | DE112012006887T5 (zh) |
WO (1) | WO2014036754A1 (zh) |
Cited By (1)
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CN110825265A (zh) * | 2019-11-01 | 2020-02-21 | 京东方科技集团股份有限公司 | 触控显示面板及触控显示装置 |
Families Citing this family (14)
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TWI552050B (zh) * | 2015-07-01 | 2016-10-01 | 友達光電股份有限公司 | 觸控面板及觸控顯示裝置 |
CN105158998B (zh) * | 2015-09-14 | 2017-10-17 | 深圳市华星光电技术有限公司 | 一种液晶显示装置及其显示面板 |
US9857646B2 (en) | 2015-09-14 | 2018-01-02 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Liquid crystal display device and display panel |
CN105304046A (zh) * | 2015-11-19 | 2016-02-03 | 深圳市华星光电技术有限公司 | 液晶显示装置以及液晶显示器 |
CN106444193A (zh) * | 2016-11-18 | 2017-02-22 | 深圳市华星光电技术有限公司 | 液晶面板及其阵列基板 |
CN106548757A (zh) * | 2017-01-10 | 2017-03-29 | 深圳市华星光电技术有限公司 | 一种驱动电路及显示装置 |
CN106647071B (zh) * | 2017-02-15 | 2019-11-22 | 上海中航光电子有限公司 | 一种阵列基板、显示面板及显示装置 |
CN107564921B (zh) | 2017-09-01 | 2019-09-27 | 深圳市华星光电半导体显示技术有限公司 | 显示面板及其制备方法、显示装置 |
CN107561798A (zh) * | 2017-10-26 | 2018-01-09 | 惠科股份有限公司 | 扇出线结构及其制造方法 |
CN107808864A (zh) * | 2017-10-26 | 2018-03-16 | 惠科股份有限公司 | 扇出线结构及其制造方法 |
CN108732833A (zh) | 2018-05-24 | 2018-11-02 | 京东方科技集团股份有限公司 | 阵列基板及其制作方法、显示装置 |
CN109411518B (zh) * | 2018-10-19 | 2021-04-02 | 武汉华星光电半导体显示技术有限公司 | 一种有机发光二极管显示器及其制作方法 |
CN110673410A (zh) * | 2019-09-24 | 2020-01-10 | 深圳市华星光电半导体显示技术有限公司 | 液晶显示器边框的走线结构 |
CN112068366B (zh) * | 2020-09-04 | 2021-08-24 | 深圳市华星光电半导体显示技术有限公司 | 显示面板及显示面板制作方法 |
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TW201038996A (en) * | 2009-04-21 | 2010-11-01 | Wintek Corp | Flat display panel |
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CN101046590A (zh) * | 2006-03-31 | 2007-10-03 | 元太科技工业股份有限公司 | 有源矩阵式显示面板 |
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2012
- 2012-09-07 CN CN2012103303011A patent/CN102799005A/zh active Pending
- 2012-09-14 WO PCT/CN2012/081371 patent/WO2014036754A1/zh active Application Filing
- 2012-09-14 DE DE112012006887.4T patent/DE112012006887T5/de not_active Withdrawn
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CN101639594A (zh) * | 2008-08-01 | 2010-02-03 | 群康科技(深圳)有限公司 | 液晶显示装置 |
CN101487962A (zh) * | 2009-01-20 | 2009-07-22 | 友达光电股份有限公司 | 具窄型边框区结构的显示装置与其驱动方法 |
TW201038996A (en) * | 2009-04-21 | 2010-11-01 | Wintek Corp | Flat display panel |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110825265A (zh) * | 2019-11-01 | 2020-02-21 | 京东方科技集团股份有限公司 | 触控显示面板及触控显示装置 |
CN110825265B (zh) * | 2019-11-01 | 2023-05-12 | 京东方科技集团股份有限公司 | 触控显示面板及触控显示装置 |
Also Published As
Publication number | Publication date |
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CN102799005A (zh) | 2012-11-28 |
DE112012006887T5 (de) | 2015-05-21 |
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