WO2016123985A1 - 阵列基板及其制作方法和驱动方法、显示装置 - Google Patents
阵列基板及其制作方法和驱动方法、显示装置 Download PDFInfo
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- WO2016123985A1 WO2016123985A1 PCT/CN2015/089998 CN2015089998W WO2016123985A1 WO 2016123985 A1 WO2016123985 A1 WO 2016123985A1 CN 2015089998 W CN2015089998 W CN 2015089998W WO 2016123985 A1 WO2016123985 A1 WO 2016123985A1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10D86/441—Interconnections, e.g. scanning lines
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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Definitions
- At least one embodiment of the present invention provides an array substrate, a manufacturing method thereof and a driving method thereof, and a display device, wherein a common electrode is disposed on a substrate by forming a common electrode and a plurality of self-capacitance electrodes on a substrate of the array substrate Between the substrate and the layer where the self-capacitance electrode is located, the manufacturing process can be reduced and the signal-to-noise ratio can be improved.
- the way in which the self-capacitance electrodes and the wires are disposed in the same layer can be applied to products with higher resolution, because the pixel size of such products is small, and the touch dead zone can be adjusted to an acceptable range.
- this method can also be applied to products with a higher PPI (Pixels Per Inch).
- the wire When the self-capacitance electrode and the wire electrically connected thereto are disposed in different layers, the wire may be located on a side of the self-capacitance electrode away from the substrate (ie, above the self-capacitance electrode 160 in FIG. 1), or may be located on the surface of the self-capacitance electrode. One side of the base substrate (ie, below the self-capacitance electrode 160 in FIG. 1).
- the self-capacitance electrode and the wire electrically connected thereto may be in direct contact, or may be electrically connected to the wire through other conductive structures as shown in FIG. The following embodiment will be described by taking the case shown in FIG. 1 as an example.
- the wire electrically connected to the self-capacitance electrode can be made of a material of any metal structure on the array substrate.
- the wire 163 may be disposed in the same layer as the first electrode included in the thin film transistor 120, so that the wire can be made using the material from which the first electrode is made.
- the first electrode may be the gate 121 of the thin film transistor 120, or the source 124 and the drain 125.
- the gate and the source/drain may be made of a metal material such as aluminum, copper, zirconium, or molybdenum.
- FIG. 1 only takes the thin film transistor 120 as a bottom gate thin film transistor as an example, but it may also be a top gate thin film transistor, in which case the gate electrode 121 and the gate insulating layer 122 may be located at the source 124 and Above the drain 125.
- the wires 163 may be disposed in the same layer as the source and drain electrodes of the lower layer, and the conductive blocks 166 may be disposed in the same layer as the gates of the upper layer.
- the above-mentioned recessed portion 165 located in the second insulating layer 235 may be disposed in the third insulating layer 130 because the third insulating layer 130 may be disposed thicker, and the recessed portion 165 may be disposed in the insulating layer.
- the display unevenness problem caused by the uneven distribution of the via holes 164 is improved.
- the thin film transistor 120 includes a gate insulating layer 122, which is a lower electrode of the wiring 163 and the thin film transistor 120 (for example, a gate of a bottom gate type thin film transistor, or a source and a drain of a top gate type thin film transistor).
- the second insulating layer 235 between the self-capacitance electrode 160 and the wire 163 further includes a gate insulating layer 122 (for example, an insulating material such as silicon nitride may be used).
- a hollow region may be provided at a position where the common electrode 140 corresponds to a portion of the first extension portion 161 and the second extension portion 162; for example, for a cross-shaped structure
- the self-capacitance electrode 160 can correspond to all of the common electrodes 140
- a hollowed out area is provided at a position of an extension portion and a second extension portion.
- a parasitic capacitance can be generated between the self-capacitance electrode 160 and the gate line 180 and the data line 190.
- the self-capacitance electrode 160 and the gate line 180 and/or the data line can be formed.
- An insulating layer is provided between 190.
- the third insulating layer 130 between the layer in which the common electrode 140 is located and the thin film transistor 120 may be utilized to reduce the capacitance between the self-capacitance electrode 160 and the gate line 180 and the data line 190, respectively.
- each adjacent two rows of pixel units 089 form one pixel unit group, and two adjacent gate lines 180 are disposed between the adjacent two rows of pixel units 089, and the wires 163 It can be set at a gap between adjacent pixel unit groups.
- the second insulating layer 235 between the self-capacitance electrode 160 and the wire 163 includes the first insulating layer 150 , the third insulating layer 130 , and the gate insulating layer 122 .
- the second insulating layer 235 may further include a first insulating layer 150 and a third insulating layer 130, excluding the gate insulating layer 122; for example, the third insulating layer 130 may not be disposed on the array substrate 100, and correspondingly, the second The insulating layer 235 may not include the third insulating layer 130.
- At least one embodiment of the present invention further provides a method for fabricating an array substrate.
- the method includes: forming a plurality of gate lines 180, a plurality of data lines 190 on the substrate substrate 110, a thin film transistor 120, a common electrode 140, and a pixel electrode 170; a first insulating layer 150 is formed on a side of the common electrode 140 away from the substrate 110 by one patterning process; and a liner away from the first insulating layer 150 by one patterning process A plurality of self-capacitance electrodes 160 are formed on one side of the base substrate 110.
- gate line 180 and data line 190 define a plurality of pixel cells 089 distributed in an array, each pixel cell 089 including thin film transistor 120, common electrode 140, and pixel electrode 170.
- the patterning process includes a process of forming a set pattern by using a mask, for example, including photoresist coating
- a process of forming a set pattern by using a mask for example, including photoresist coating
- the process for example, can be formed by a screen printing process.
- the order in which the self-capacitance electrode 160 and the pixel electrode 170 are formed is not limited.
- the pixel electrode 170 may be formed before or after the plurality of self-capacitance electrodes 160 are formed.
- the self-capacitance electrode may be in the form of a grid or a cross to reduce the influence on the electric field between the common electrode and the pixel electrode.
- each self-capacitance electrode 160 formed includes at least one first extension 161 extending in a first direction and/or at least one second extension 162 extending in a second direction, said One direction intersects the second direction.
- a part or all of the first extension of the common electrode 140 corresponding to each self-capacitance electrode 160 may be formed at the same time as the common electrode 140 is formed by one patterning process.
- a hollowed out region 142 is formed at the location of the portion 161 and the second extension 162.
- the manufacturing method may include: in the process of forming the self-capacitance electrode 140, overlapping each self-capacitance electrode 140 with at least one wire electrically connected to other self-capacitance electrodes; forming a second insulation layer During the process, at least one recess 165 is formed in the second insulating layer, and the at least one recess 165 corresponds to each self-capacitance electrode and the at least one wire electrically connected to the self-capacitance electrode The depth of the recess 165 is smaller than the thickness of the second insulating layer (ie, the recess 165 is not a through hole penetrating the second insulating layer).
- the wire when the self-capacitance electrode and the wire are disposed in different layers, the wire may be located above or below the self-capacitance electrode.
- the fabrication method includes forming an opening 141 corresponding to the via 164 in the common electrode 140 while forming the common electrode 140. .
- the wires electrically connected to the self-capacitance electrodes may be fabricated using materials that form any of the metal structures on the array substrate.
- the fabrication method may include forming a first electrode (eg, gate 121, or source 124 and drain 125) of the thin film transistor 120 and a plurality of wires 163 by one patterning process.
- the common electrode 140 in the array substrate 100 is a plate electrode
- the pixel electrode 170 is a slit electrode
- the self-capacitance electrode 160 and the pixel electrode 170 are arranged side by side on the first insulating layer 150
- the thin film transistor 120 is a bottom gate.
- the thin film transistor, the self-capacitance electrode 160 is electrically connected to the wire 163 through the conductive block 166.
- the method for fabricating the array substrate provided by the embodiment of the present invention may include the following steps S1 to S9, which are introduced one by one below.
- Step S2 forming a gate insulating layer material, forming a gate insulating layer 122 by a second patterning process, and forming a gate insulating layer via 022 at a position of the corresponding wire 163 of the gate insulating layer 122 to expose the wire 163, as shown in FIG. 6b. Shown.
- a depressed portion (not shown in FIG. 6e) which overlaps with one of the wires in the direction along the base substrate 110 may also be formed in the third insulating layer 130.
- Step S7 forming a first insulating layer material, forming a first insulating layer 150 by a seventh patterning process, forming a via 164 at a position corresponding to the conductive block 166 to expose the conductive block 166, and at a position corresponding to the drain 125 A via 172 is formed to expose the drain 125 as shown in Figure 6g.
- Step S8 forming a layer of metal material, forming a self-capacitance electrode 160 through an eighth patterning process, such that each self-capacitance electrode 160 includes at least one first extension portion 161 and at least one second extension portion 162, such that each self-capacitance One extension of the electrode 160 is electrically connected to the conductive block 166 and at least one The extension corresponds to the hollowed out region 142 in the common electrode 140, and the metal material in the via 172 is etched away to expose the drain 125, as shown in FIG. 6h.
- the self-capacitance electrode 160 is formed at a position corresponding to the depressed portion.
- the metal material in the via 172 can also be retained.
- the above fabrication method is obtained by adding a mask process for forming a self-capacitance electrode on the basis of an array substrate of 8 mask processes (ie, patterning process).
- the fabrication method provided by the embodiment of the present invention is also applicable to other array substrates, for example, an array substrate using a 7-time mask process and a 6-time mask process, which will not be described herein.
- the common electrode 140 and the self-capacitance electrode 160 are disposed on the base substrate 110 of the array substrate 100 , and the layer where the common electrode 140 is located away from the substrate 110 is provided with a first surface.
- An insulating layer 150 is disposed on a side of the first insulating layer 150 away from the substrate.
- the display device may be any product or component having a display function, such as a liquid crystal panel, an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
- a display function such as a liquid crystal panel, an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
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Abstract
Description
Claims (30)
- 一种阵列基板,包括衬底基板、设置于所述衬底基板上的多条栅线和多条数据线,其中,所述栅线和所述数据线限定多个呈阵列分布的像素单元;每个像素单元包括公共电极、像素电极以及薄膜晶体管;所述公共电极所在的层远离所述衬底基板的一侧设有第一绝缘层;所述第一绝缘层的远离所述衬底基板的一侧设有多个自电容电极。
- 如权利要求1所述的阵列基板,其中,所述自电容电极位于所述公共电极所在的层与所述像素电极所在的层之间,或者所述自电容电极位于所述像素电极所在的层背离所述衬底基板的一侧,或者所述自电容电极与所述像素电极并排位于同一膜层上。
- 如权利要求2所述的阵列基板,其中,当所述自电容电极位于所述像素电极所在的层背离所述衬底基板的一侧时,或者当所述自电容电极与所述像素电极并排位于同一膜层上时,所述自电容电极上设有保护层。
- 如权利要求1-3任一项所述的阵列基板,其中,每个自电容电极包括至少一个沿第一方向延伸的第一延伸部和/或至少一个沿第二方向延伸的第二延伸部,所述第一方向与所述第二方向交叉。
- 如权利要求4所述的阵列基板,其中,每个第一延伸部在垂直于所述衬底基板的方向上与所述栅线之一重叠,每个第二延伸部在垂直于所述衬底基板的方向上与所述数据线之一重叠。
- 如权利要求4或5所述的阵列基板,其中,所述公共电极在对应每个自电容电极的部分或全部所述第一延伸部和第二延伸部的位置处设有镂空区域。
- 如权利要求1-6任一项所述的阵列基板,其中,每个自电容电极与一条导线电连接,所述导线用于将所述自电容电极的信号导出;所述自电容电极与所述导线异层设置,所述自电容电极所在的层以及所述导线之间设有第二绝缘层,所述自电容电极与所述导线通过过孔电连接。
- 如权利要求7所述的阵列基板,其中,所述自电容电极与至少一条与其他自电容电极电连接的导线重叠并且在二者之间的所述第二绝缘层中设有凹陷部,所述凹陷部的深度小于所述第二绝缘层的厚度。
- 如权利要求7或8所述的阵列基板,其中,所述公共电极在对应所述过孔的位置设有开口,所述过孔通过所述开口。
- 如权利要求9所述的阵列基板,其中,所述薄膜晶体管包括第一电极,所述导线与所述第一电极同层设置。
- 如权利要求10所述的阵列基板,其中,所述薄膜晶体管还包括第二电极,所述自电容电极与所述导线通过与所述第二电极同层设置的导电块电连接。
- 如权利要求9-11任一项所述阵列基板,其中,所述公共电极所在的层与所述薄膜晶体管之间设有第三绝缘层,所述第二绝缘层包括所述第三绝缘层。
- 如权利要求12所述的阵列基板,其中,所述薄膜晶体管包括栅绝缘层,所述第二绝缘层还包括所述栅绝缘层。
- 如权利要求9-13任一项所述的阵列基板,其中,每相邻的两行像素单元形成一个像素单元组,所述相邻的两行像素单元之间设有两条栅线,所述导线设置在相邻的所述像素单元组之间的间隙处。
- 如权利要求1-8任一项所述的阵列基板,其中,所述公共电极所在的层与所述薄膜晶体管之间设有第三绝缘层。
- 如权利要求1-6任一项所述的阵列基板,其中,每个自电容电极与一条导线电连接,所述导线用于将所述自电容电极的信号导出;所述自电容电极与所述导线同层设置。
- 如权利要求4-16任一项所述的阵列基板,其中,所述自电容电极采用金属材料制作。
- 一种显示装置,包括如权利要求1-17任一项所述的阵列基板。
- 如权利要求18所述的显示装置,还包括:与所述阵列基板相对设置的对置基板,其中,所述对置基板上设有黑矩阵,当每个自电容电极包括至少一个沿第一方向延伸的第一延伸部和/或至少一个沿第二方向延伸的第二延伸部,且所述第 一方向与所述第二方向交叉时,所述第一延伸部和所述第二延伸部对应所述黑矩阵所在的位置。
- 一种阵列基板的制作方法,包括:在衬底基板上形成多条栅线、多条数据线、薄膜晶体管、公共电极和像素电极;通过一次构图工艺在所述公共电极的远离所述衬底基板的一侧形成第一绝缘层;以及通过一次构图工艺在所述第一绝缘层的远离所述衬底基板的一侧形成多个自电容电极;其中,所述栅线和数据线限定呈阵列分布的多个像素单元,每个像素单元包括所述薄膜晶体管、公共电极和像素电极。
- 如权利要求20所述的制作方法,其中,在形成所述自电容电极之前或者之后,形成所述像素电极。
- 如权利要求21所述的制作方法,其中,在所述自电容电极的远离所述衬底基板的一侧形成透明导电材料;通过一次构图工艺,在形成所述像素电极的同时,在每个自电容电极上形成保护层。
- 如权利要求20-22任一项所述的制作方法,其中,每个自电容电极包括至少一个沿第一方向延伸的第一延伸部和/或至少一个沿第二方向延伸的第二延伸部,所述第一方向与所述第二方向交叉。
- 如权利要求23所述的制作方法,其中,在形成所述公共电极的同时,在所述公共电极对应每个自电容电极的部分或全部所述第一延伸部和第二延伸部的位置处形成镂空区域。
- 如权利要求20-24任一项所述的制作方法,其中,在所述衬底基板上依次形成多条导线以及第二绝缘层,使每个自电容电极通过过孔与所述导线电连接。
- 如权利要求25所述的制作方法,其中,在形成所述自电容电极的过程中,使每个自电容电极与至少一条与其他自电容电极电连接的导线重叠;在形成所述第二绝缘层的过程中,在所述第二绝缘层中形成凹陷部,所 述凹陷部对应每个自电容电极及与其重叠的所述至少一条与其他自电容电极电连接的导线,所述凹陷部的深度小于所述第二绝缘层的厚度。
- 如权利要求25或26所述的制作方法,其中,在形成所述公共电极的同时,在所述公共电极中形成对应所述过孔的开口。
- 如权利要求27所述的制作方法,其中,通过一次构图工艺,形成所述薄膜晶体管的第一电极以及所述多条导线。
- 如权利要求28所述的制作方法,其中,通过一次构图工艺,形成所述薄膜晶体管的第二电极,以及电连接所述自电容电极与所述导线的导电块。
- 一种阵列基板的驱动方法,包括:对所述公共电极施加公共电极信号,同时对所述各自电容电极施加驱动信号;接收各自电容电极的反馈信号,并根据反馈信号判断触摸位置;或者将显示一帧图像的时间分成显示时间段和触控时间段,在显示时间段和触控时间段对所述公共电极施加公共电极信号,在触控时间段对各自电容电极施加驱动信号并接收各自电容电极的反馈信号,并根据反馈信号判断触摸位置;其中,所述公共电极、所述自电容电极均设置在所述阵列基板的衬底基板上,所述公共电极所在的层远离所述衬底基板的一侧设有第一绝缘层,所述第一绝缘层的远离所述衬底基板的一侧设有自电容电极。
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| JP2016570789A JP6702890B2 (ja) | 2015-02-02 | 2015-09-18 | アレイ基板及びその作成方法と駆動方法、表示装置 |
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- 2015-09-18 KR KR1020167031662A patent/KR101978326B1/ko not_active Expired - Fee Related
- 2015-09-18 JP JP2016570789A patent/JP6702890B2/ja not_active Expired - Fee Related
- 2015-09-18 WO PCT/CN2015/089998 patent/WO2016123985A1/zh not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6702890B2 (ja) | 2020-06-03 |
| CN104571715B (zh) | 2018-01-02 |
| EP3255530A4 (en) | 2018-08-22 |
| JP2018503847A (ja) | 2018-02-08 |
| EP3255530A1 (en) | 2017-12-13 |
| US20160357314A1 (en) | 2016-12-08 |
| EP3255530B1 (en) | 2020-11-04 |
| KR101978326B1 (ko) | 2019-08-28 |
| US10042461B2 (en) | 2018-08-07 |
| KR20160145121A (ko) | 2016-12-19 |
| CN104571715A (zh) | 2015-04-29 |
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