WO2015176469A1 - 触摸显示面板和显示装置 - Google Patents

触摸显示面板和显示装置 Download PDF

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Publication number
WO2015176469A1
WO2015176469A1 PCT/CN2014/088362 CN2014088362W WO2015176469A1 WO 2015176469 A1 WO2015176469 A1 WO 2015176469A1 CN 2014088362 W CN2014088362 W CN 2014088362W WO 2015176469 A1 WO2015176469 A1 WO 2015176469A1
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WIPO (PCT)
Prior art keywords
layer
display panel
touch display
common electrode
touch
Prior art date
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Ceased
Application number
PCT/CN2014/088362
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English (en)
French (fr)
Inventor
王海生
董学
刘红娟
丁小梁
杨盛际
刘英明
赵卫杰
任涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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Application filed by BOE Technology Group Co Ltd, Beijing BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to EP14859327.0A priority Critical patent/EP3147760B1/en
Priority to US14/442,791 priority patent/US10203785B2/en
Publication of WO2015176469A1 publication Critical patent/WO2015176469A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a touch display panel and a display device.
  • the In Cell touch display panel has a good application prospect because it does not need to additionally increase the manufacturing process of the touch display panel and has a characteristic that the aperture ratio and the light transmittance of the display pixel are extremely small.
  • the in-cell touch display panel usually multiplexes a certain layer in the array substrate as a touch driving electrode, such as multiplexing the common electrode layer, that is, using the common electrode layer as both a common electrode and a touch driving electrode.
  • the common electrode layer needs to be divided into horizontal and vertical directions. The vertical segmentation is divided along the direction of the data line, and the common electrode corresponding to the data line and the source electrode region is divided and removed. The area that is divided and removed does not have the shielding of the common electrode layer, which makes the touch display panel have a very loud noise when the display and the touch are synchronized, and the entire touch display panel can only display and touch in time, thereby causing the touch.
  • the touch panel and display effect of the display panel are relatively poor.
  • the present invention is directed to the above technical problems existing in the prior art, and provides a touch display panel and a display device.
  • the touch display panel can block the interval region corresponding to the position of the data line in the common electrode layer, thereby forming a good shielding for the electrical signals on the source and the data lines, and greatly reducing the source.
  • the data line has a problem of noise during the charging process, so that the display and the touch of the touch display panel can be performed normally at the same time.
  • the present invention provides a touch display panel including an array substrate, the array substrate including a substrate, a common electrode layer disposed on the substrate, a thin film transistor, and a data line and a pixel electrode connected to the thin film transistor, the common electrode layer includes a touch driving electrode and a common electrode which are insulated and spaced apart from each other, and the touch driving electrode is used for display time of one frame of the screen
  • the common electrode signal and the touch driving signal are time-divisionally loaded
  • the array substrate further includes a shielding layer, and the shielding layer blocks an interval between the touch driving electrode and the common electrode corresponding to the position of the data line region.
  • the shielding layer is located above and/or below the common electrode layer.
  • the shielding layer loads a common electrode signal.
  • the thin film transistor includes a source, a drain, a gate, and an active layer, and the source and the drain are disposed in the same layer above the active layer and respectively located on the active layer Two ends; the gate is disposed above the source and the drain; the pixel electrode and the common electrode layer are both located above the thin film transistor, and the pixel electrode is connected to the drain
  • the source is disposed in the same layer as the data line and connected to each other.
  • the shielding layer is disposed in the same layer as the gate.
  • the shielding layer and the gate are made of the same material and formed at the same time.
  • the pixel electrode is located above the common electrode layer, and the shielding layer is disposed in the same layer as the pixel electrode.
  • the pixel electrode is located below the common electrode layer, and the shielding layer is disposed in the same layer as the pixel electrode.
  • the shielding layer and the pixel electrode are made of the same material and formed at the same time.
  • the array substrate further includes a black matrix, the black matrix is located under the active layer, and the black matrix completely blocks the active layer.
  • the present invention also provides a display device comprising the above touch display panel.
  • the touch display panel provided by the present invention, by providing a shielding layer, an interval region corresponding to a position of a data line in the common electrode layer can be blocked, thereby enabling electrical signals on the source and the data line. Forming a good shielding, greatly reducing the problem of noise in the source and data lines during charging, and thus making The display and touch of the touch display panel can be performed normally at the same time.
  • Embodiment 1 is a cross-sectional view showing the structure of an array substrate of a touch display panel in Embodiment 1 of the present invention.
  • Embodiment 2 is a cross-sectional view showing the structure of an array substrate of a touch display panel in Embodiment 2 of the present invention.
  • FIG. 3 is a cross-sectional view showing the structure of still another array substrate of the touch display panel in Embodiment 2 of the present invention.
  • Embodiment 4 is a cross-sectional view showing the structure of an array substrate of a touch display panel in Embodiment 3 of the present invention.
  • FIG. 5 is a cross-sectional view showing the structure of an array substrate of a touch display panel in Embodiment 4 of the present invention.
  • FIG. 6 is a cross-sectional view showing the structure of still another array substrate of the touch display panel in Embodiment 4 of the present invention.
  • FIG. 7 is a cross-sectional view showing the structure of an array substrate of a touch display panel in Embodiment 5 of the present invention.
  • the embodiment provides a touch display panel including an array substrate.
  • the array substrate includes a substrate 1 , a common electrode layer 3 disposed on the substrate 1 , a thin film transistor 2 , and a data line connected to the thin film transistor 2 ( 1 and the pixel electrode 4,
  • the common electrode layer 3 includes touch driving electrodes and a common electrode which are insulated and spaced apart from each other.
  • the touch driving electrodes are used for time-sharing loading within a display time of one frame.
  • the common electrode signal and the touch driving signal, the array substrate further includes a shielding layer 5, and the shielding layer 5 blocks the spacing region 31 corresponding to the position of the data line between the touch driving electrode and the common electrode.
  • the shielding layer 5 is located above and below the common electrode layer 3. It should be appreciated that in an embodiment of the invention, the shield layer 5 is connected to the common electrode through a via to load the common electrode signal, but the invention is not limited thereto.
  • the shielding layer 5 can form an occlusion between the touch driving electrode and the common electrode corresponding to the position of the data line, so that the electrical signal on the data line can be well shielded, and the data line is greatly reduced. There is a problem of noise during the charging process, so that the display and the touch of the touch display panel can be performed normally at the same time.
  • the thin film transistor 2 includes a source 21, a drain 22, a gate 23 and an active layer 24.
  • the source 21 and the drain 22 are disposed on the same layer above the active layer 24 and respectively at both ends of the active layer 24.
  • the gate electrode 23 is disposed above the source electrode 21 and the drain electrode 22; the pixel electrode 4 and the common electrode layer 3 are both located above the thin film transistor 2, the pixel electrode 4 is connected to the drain electrode 22; and the source electrode 21 is disposed in the same layer as the data line And connected to each other, the shielding layer 5 can simultaneously form a good shielding for the electrical signals on the source 21.
  • a first insulating layer 6 is further disposed between the active layer 24 and the source 21 and the drain 22, and a gate insulating layer 7, a pixel electrode 4 and a common electrode are further disposed between the gate 23 and the source 21 and the drain 22.
  • a second insulating layer 8 is also disposed between the layers 3.
  • the first insulating layer 6 and the second insulating layer 8 are each a passivation layer formed of a resin material.
  • the pixel electrode 4 is located above the common electrode layer 3, and a resin layer 9 is disposed between the gate electrode 23 and the common electrode layer 3.
  • the shielding layer 5 is provided with two, one shielding layer 5 is disposed between the thin film transistor 2 and the common electrode layer 3, and the other shielding layer 5 is disposed above the common electrode layer 3.
  • the arrangement of the two shielding layers 5 can better shield the noise existing in the charging process of the source electrode 21 and the data line, thereby further facilitating the display and the touch of the touch display panel while performing normally.
  • the shielding layer 5 disposed between the thin film transistor 2 and the common electrode layer 3 is disposed in the same layer as the gate electrode 23, and is formed simultaneously with the same material as the gate electrode 23, and is disposed above the common electrode layer 3.
  • the shielding layer 5 is disposed in the same layer as the pixel electrode 4 and is formed simultaneously with the same material as the pixel electrode 4.
  • the shielding layer 5 is formed in such a manner that the touch display panel does not need to add additional preparation processes and steps in the preparation process, thereby simplifying the preparation of the touch display panel and improving the preparation efficiency. It should be noted that the shield layer 5 and the gate electrode 23 and the pixel electrode 4 are insulated from each other.
  • the array substrate further includes a black matrix 10, the black matrix 10 is located below the active layer 24, and the black matrix 10 completely blocks the active layer 24.
  • the black matrix 10 thus disposed can block the backlight that is irradiated onto the active layer 24, thereby avoiding the problem that the leakage current is excessively large due to the backlight of the active layer 24, thereby ensuring the normality of the thin film transistor 2 and the array substrate. Work so that the touch display panel can be displayed normally.
  • the array substrate further includes a color film layer 11 disposed above the pixel electrode 4 located above.
  • the arrangement of the color film layer 11 enables the touch display panel to be displayed in color.
  • the touch display panel further includes a sensing substrate, and the sensing substrate is disposed opposite to the array substrate.
  • the sensing substrate is provided with a sensing electrode
  • the common electrode layer 3 on the array substrate is used as a common electrode for display and as a touch driving electrode for touch, that is, the touch display panel is an in-cell touch display panel. Since the in-cell touch display panel shares the common electrode layer 3 during display and touch, it is not necessary to additionally increase the manufacturing process of the touch display panel.
  • the touch driving electrode receives the touch driving signal, and the sensing electrode senses the touch driving signal and generates a touch sensing signal. No., thereby completing the touch sensing of the touch display panel.
  • the driving method of the touch display panel is that the touch driving of the touch display panel and the display driving are synchronously performed. At the same time, a part of the touch driving electrodes in the array substrate of the touch display panel is applied with a common electrode signal, and the other part is applied with a touch driving. signal.
  • the touch display panel may include n display areas, the n is an integer greater than or equal to 2, the display area corresponds to a plurality of rows of pixels, and the driving method of the touch display panel includes: scanning during a progressive scan process One of the n display areas, and outputting a display signal to the scanned display area, inputs a touch drive signal to one of n-1 unscanned display areas.
  • the driving method is performed by shifting the display driving and the touch driving of the touch display panel at the same time point, so that the display and the touch of the touch display panel can be synchronized, thereby greatly improving the touch reporting rate of the touch display panel.
  • the setting of the shielding layer in the touch display panel can make the noise generated by the touch display panel when the display and the touch synchronization are performed well, thereby ensuring that the touch display panel can display and touch normally at the same time. It also ensures the normal effect of the display and touch of the touch panel.
  • the present embodiment provides a touch display panel. Unlike the first embodiment, only one shielding layer is disposed in the touch display panel. As shown in FIG. 2, the shielding layer 5 is located below the common electrode layer 3, and the shielding layer 5 is disposed between the thin film transistor 2 and the common electrode layer 3, and the shielding layer 5 is disposed in the same layer as the gate electrode 23, and is the same The material is simultaneously formed; or, as shown in FIG. 3, the shield layer 5 is located above the common electrode layer 3, and the shield layer 5 is disposed in the same layer as the pixel electrode 4, and is formed simultaneously using the same material.
  • the noise existing in the charging process of the source 21 and the data line can be shielded, but only relative to the embodiment.
  • the setting of the two shielding layers 5 in 1 is slightly less than the shielding effect.
  • the present embodiment provides a touch display panel. Unlike the embodiment 1-2, as shown in FIG. 4, the pixel electrode 4 is located below the common electrode layer 3, and a resin layer is disposed between the gate electrode 23 and the pixel electrode 4. 9.
  • both shielding layers 5 are disposed, and both shielding layers 5 are located below the common electrode layer 3, and both shielding layers 5 are disposed between the thin film transistor 2 and the common electrode layer 3.
  • One of the shielding layers 5 is disposed in the same layer as the gate electrode 23 and is formed simultaneously with the same material, and the other shielding layer 5 is disposed in the same layer as the pixel electrode 4 and simultaneously formed using the same material.
  • the effect of the shielding of the source 21 and the data line during the charging of the two shield layers 5 in this embodiment can achieve the same effect as in the first embodiment.
  • the embodiment provides a touch display panel. Different from the embodiment 1-3, on the basis of the third embodiment, only one shielding layer is disposed in the touch display panel, and the shielding layer is located below the common electrode layer. .
  • the shielding layer 5 is disposed between the thin film transistor and the common electrode layer. As shown in FIG. 5, the shielding layer 5 is disposed in the same layer as the gate electrode 23, and is formed by using the same material at the same time, or, as shown in FIG.
  • the shield layer 5 is disposed in the same layer as the pixel electrode 4 and formed simultaneously using the same material.
  • the noise existing in the charging process of the source 21 and the data line can be shielded, but the shielding effect is compared with the setting of the two shielding layers 5 in the embodiment 3. Slightly less.
  • the embodiment provides a touch display panel.
  • the array substrate does not include a resin layer
  • the pixel electrode 4 is located above the common electrode layer 3, and the gate electrode 23 and the common electrode layer are provided.
  • a color film layer 11 is disposed between the three layers (as shown in FIG. 7); or, the pixel electrode is located below the common electrode layer, and a color film layer is disposed between the gate electrode and the pixel electrode.
  • two shielding layers 5 are disposed, one is located above the common electrode layer 3, and the shielding layer 5 is disposed in the same layer as the pixel electrode 4, and is formed by using the same material at the same time; Located below the common electrode layer 3, and the shield layer 5 is disposed in the same layer as the gate electrode 23, and is formed simultaneously using the same material.
  • the color film layer 11 is made of red (R), green (G), and blue (B) resin materials, and the red (R), green (G), and blue (B) resin materials can perform color display on the touch display panel. It also has an insulating function to insulate the common electrode layer 3 or the pixel electrode 4 and the gate electrode 23 which are relatively lower. With this arrangement, the thickness of the touch display panel can be made thinner, and the manufacturing cost of the touch display panel can be saved.
  • the embodiment provides a display device including the touch display panel in any of the above embodiments 1-5.
  • the touch display panel provided by the present invention, by providing a shielding layer, an interval region corresponding to a position of a data line in the common electrode layer can be blocked, thereby enabling electrical signals on the source and the data line.
  • the formation of a good shielding greatly reduces the problem of noise in the charging process of the source and the data line, so that the display and the touch of the touch display panel can be performed normally at the same time.
  • the common electrode layer is described in the embodiment of the present invention.
  • the upper and/or lower representations are located at different layers from the common electrode layer and may be formed using two processes and are not intended to define their positional relationship.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

一种触摸显示面板和一种显示装置。该触摸显示面板包括阵列基板，阵列基板包括基板（1）以及设置于基板（1）上的公共电极层（3）、薄膜晶体管（2）和与薄膜晶体管（2）连接的数据线和像素电极（4），公共电极层（3）包括相互绝缘且间隔设置的触控驱动电极和公共电极，阵列基板还包括屏蔽层（5），所述屏蔽层（5）遮挡触控驱动电极和公共电极之间对应着数据线位置的间隔区域（31）。该触摸显示面板通过设置所述屏蔽层（5），能够对公共电极层（3）中的对应着数据线位置的间隔区域（31）形成遮挡，从而能对源极（21）和数据线上的电信号形成很好的屏蔽，大大降低了源极（21）和数据线在充电过程中存在噪声的问题，进而使触摸显示面板的显示和触控能够同时进行。

Description

触摸显示面板和显示装置 技术领域
本发明涉及显示技术领域，具体地，涉及触摸显示面板和显示装置。
背景技术
目前，内嵌式(In Cell)触摸显示面板由于不需要额外增加触摸显示面板的制备工序、并且具有对显示像素的开口率和透光率影响极小的特性，所以具有较好的应用前景。
内嵌式触摸显示面板通常会复用阵列基板中的某层作为触控驱动电极，如复用公共电极层，即,将公共电极层既用作公共电极又用作触控驱动电极。实现该复用功能就需要对公共电极层进行横向及纵向的分割，其中，纵向的分割要沿着数据线的方向进行分割，原来对应数据线和源电极区域的公共电极被分割去掉，从而该被分割去掉的区域便没有了公共电极层的屏蔽，这会使触摸显示面板在显示和触控同步进行时的噪音非常大，导致整个触摸显示面板只能分时显示和触控，从而导致触摸显示面板的触控和显示效果比较差。
发明内容
本发明针对现有技术中存在的上述技术问题，提供了一种触摸显示面板和一种显示装置。该触摸显示面板通过设置屏蔽层，能够对公共电极层中的对应着数据线位置的间隔区域进行遮挡，从而能对源极和数据线上的电信号形成很好的屏蔽，大大降低了源极和数据线在充电过程中存在噪声的问题，进而使触摸显示面板的显示和触控能够同时正常进行。
本发明提供一种触摸显示面板，包括阵列基板，所述阵列基板包括基板以及设置在所述基板上的公共电极层、薄膜晶体管和 与所述薄膜晶体管连接的数据线和像素电极，所述公共电极层包括相互绝缘且间隔设置的触控驱动电极和公共电极，在一帧画面的显示时间内，所述触控驱动电极用于分时地加载公共电极信号和触控驱动信号，所述阵列基板还包括屏蔽层，所述屏蔽层遮挡所述触控驱动电极和所述公共电极之间的对应着所述数据线位置的间隔区域。
优选地，所述屏蔽层位于所述公共电极层的上方和/或下方。
优选地，所述屏蔽层加载公共电极信号。
优选地，所述薄膜晶体管包括源极、漏极、栅极和有源层，所述源极和所述漏极同层设置在所述有源层的上方且分别位于所述有源层的两端；所述栅极设置在所述源极和所述漏极的上方；所述像素电极和所述公共电极层均位于所述薄膜晶体管的上方，所述像素电极与所述漏极连接；所述源极与所述数据线同层设置且相互连接。
优选地，所述屏蔽层与所述栅极同层设置。
优选地，所述屏蔽层与所述栅极采用相同的材料且同时形成。
优选地，所述像素电极位于所述公共电极层的上方，所述屏蔽层与所述像素电极同层设置。
优选地，所述像素电极位于所述公共电极层的下方，所述屏蔽层与所述像素电极同层设置。
优选地，所述屏蔽层与所述像素电极采用相同的材料且同时形成。
优选地，所述阵列基板还包括黑矩阵，所述黑矩阵位于所述有源层的下方，且所述黑矩阵完全遮挡所述有源层。
本发明还提供一种显示装置，包括上述触摸显示面板。
本发明的有益效果：本发明所提供的触摸显示面板，通过设置屏蔽层，能够对公共电极层中的对应着数据线位置的间隔区域进行遮挡，从而能对源极和数据线上的电信号形成很好的屏蔽，大大降低了源极和数据线在充电过程中存在噪声的问题，进而使 触摸显示面板的显示和触控能够同时正常进行。
附图说明
图1为本发明的实施例1中的触摸显示面板的阵列基板的结构剖视图。
图2为本发明的实施例2中的触摸显示面板的一种阵列基板的结构剖视图。
图3为本发明的实施例2中的触摸显示面板的又一种阵列基板的结构剖视图。
图4为本发明的实施例3中的触摸显示面板的阵列基板的结构剖视图。
图5为本发明的实施例4中的触摸显示面板的一种阵列基板的结构剖视图。
图6为本发明的实施例4中的触摸显示面板的又一种阵列基板的结构剖视图。
图7为本发明的实施例5中的触摸显示面板的阵列基板的结构剖视图。
具体实施方式
为使本领域的技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明所提供的触摸显示面板和显示装置作进一步详细描述。
除非另作定义，此处使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本发明专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上方”、“下方” 等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
实施例1：
本实施例提供一种触摸显示面板，包括阵列基板，如图1所示，阵列基板包括基板1以及设置在基板1上的公共电极层3、薄膜晶体管2和与薄膜晶体管2连接的数据线(图1中未示出)和像素电极4，公共电极层3包括相互绝缘且间隔设置的触控驱动电极和公共电极，在一帧画面的显示时间内，触控驱动电极用于分时地加载公共电极信号和触控驱动信号，阵列基板还包括屏蔽层5，屏蔽层5遮挡触控驱动电极和公共电极之间的对应着数据线位置的间隔区域31。
本实施例中，屏蔽层5位于公共电极层3的上方和下方。应当认识到的是，在本发明的实施例中，屏蔽层5通过过孔与公共电极连接以加载公共电极信号，但本发明不限于此。
屏蔽层5的设置能够对触控驱动电极和公共电极之间的对应着数据线位置的间隔区域31形成遮挡，从而能对数据线上的电信号形成很好的屏蔽，大大降低了数据线在充电过程中存在噪声的问题，进而使触摸显示面板的显示和触控能够同时正常进行。
其中，薄膜晶体管2包括源极21、漏极22、栅极23和有源层24，源极21和漏极22同层设置在有源层24的上方且分别位于有源层24的两端；栅极23设置在源极21和漏极22的上方；像素电极4和公共电极层3均位于薄膜晶体管2的上方，像素电极4与漏极22连接；源极21与数据线同层设置且相互连接，屏蔽层5同时能对源极21上的电信号形成很好的屏蔽。有源层24与源极21和漏极22之间还设置有第一绝缘层6，栅极23与源极21和漏极22之间还设置有栅绝缘层7，像素电极4和公共电极层3之间还设置有第二绝缘层8。第一绝缘层6和第二绝缘层8均为由树脂材料形成的钝化层。
本实施例中，像素电极4位于公共电极层3的上方，栅极23与公共电极层3之间设置有树脂层9。
本实施例中，屏蔽层5设置有两个，一个屏蔽层5设置在薄膜晶体管2与公共电极层3之间，另一个屏蔽层5设置在公共电极层3的上方。两个屏蔽层5的设置能够更好地对源极21和数据线在充电过程中存在的噪声进行屏蔽，从而更加有利于触摸显示面板的显示和触控同时正常进行。
两个屏蔽层5中，设置在薄膜晶体管2与公共电极层3之间的屏蔽层5与栅极23同层设置、且与栅极23采用相同的材料同时形成，设置在公共电极层3上方的屏蔽层5与像素电极4同层设置、且与像素电极4采用相同的材料同时形成。如此形成屏蔽层5，使得触摸显示面板在制备过程中无需增加额外的制备工艺和步骤，从而简化了触摸显示面板的制备，提高了制备效率。需要说明的是，屏蔽层5与栅极23和像素电极4之间都相互绝缘。
本实施例中，阵列基板还包括黑矩阵10，黑矩阵10位于有源层24的下方，且黑矩阵10完全遮挡有源层24。如此设置的黑矩阵10能够遮挡照射到有源层24上的背光，从而能够避免由于有源层24受背光照射而造成的漏电流偏大的问题，进而能够确保薄膜晶体管2和阵列基板的正常工作，使触摸显示面板能正常显示。
本实施例中，阵列基板还包括彩膜层11，彩膜层11设置在处于相对上方的像素电极4的上方。彩膜层11的设置能使该触摸显示面板进行彩色显示。
另外，触摸显示面板还包括感应基板，感应基板与阵列基板相对设置。感应基板上设置有感应电极，阵列基板上的公共电极层3既用作显示时的公共电极，又用作触控时的触控驱动电极，即该触摸显示面板为内嵌式触摸显示面板，内嵌式触摸显示面板由于在显示和触控时共用公共电极层3，因此不需要额外增加触摸显示面板的制备工序。在触控时，触控驱动电极接收触控驱动信号，感应电极对该触控驱动信号进行感应并产生触控感应信 号，从而完成对该触摸显示面板的触控感应。
上述触摸显示面板的驱动方法为，触摸显示面板的触控驱动和显示驱动同步进行，在同一时间,触摸显示面板的阵列基板中的触控驱动电极一部分施加公共电极信号，另一部分施加触控驱动信号。
具体地，触摸显示面板可以包括n个显示区域，所述n为大于等于2的整数，所述显示区域对应多行像素，所述触摸显示面板的驱动方法包括：在逐行扫描过程中，扫描n个显示区域中的一个、并在向扫描的显示区域输出显示信号的同时，向n-1个未扫描到的显示区域中的一个输入触控驱动信号。该驱动方法通过将触摸显示面板的显示驱动和触控驱动在同一时间点错开进行，从而使该触摸显示面板的显示和触控能够同步进行，进而大大提高了触摸显示面板的触控报点率；此外，触摸显示面板中屏蔽层的设置，能够使得触摸显示面板在显示和触控同步进行时所产生的噪声被很好地屏蔽，从而既确保触摸显示面板能够同时正常进行显示和触控，又能确保触摸显示面板的显示和触控的正常效果。
实施例2：
本实施例提供了一种触摸显示面板，与实施例1不同的是，该触摸显示面板中的屏蔽层只设置有一个。如图2所示，屏蔽层5位于公共电极层3的下方，该屏蔽层5设置在薄膜晶体管2与公共电极层3之间，且该屏蔽层5与栅极23同层设置、且采用相同的材料同时形成；或者，如图3所示，屏蔽层5位于公共电极层3的上方，且该屏蔽层5与像素电极4同层设置、且采用相同的材料同时形成。
本实施例中的触摸显示面板的其他结构与实施例1中的相同，此处不再赘述。
本实施例中的屏蔽层5虽然只有一个，但仍然能对源极21和数据线在充电过程中存在的噪声进行屏蔽，只是相对于实施例 1中的两个屏蔽层5的设置，屏蔽效果略有不及。
实施例3：
本实施例提供一种触摸显示面板，与实施例1-2不同的是，如图4所示，像素电极4位于公共电极层3的下方，栅极23与像素电极4之间设置有树脂层9。
本实施例中，屏蔽层5设置有两个，两个屏蔽层5均位于公共电极层3的下方，且两个屏蔽层5都设置在薄膜晶体管2与公共电极层3之间。其中一个屏蔽层5与栅极23同层设置、且采用相同的材料同时形成，另一个屏蔽层5与像素电极4同层设置、且采用相同的材料同时形成。
本实施例中的两个屏蔽层5对源极21和数据线在充电过程中存在的噪声进行屏蔽的效果能够达到与实施例1中同样的效果。
本实施例中的触摸显示面板的其他结构与实施例1中的相同，此处不再赘述。
实施例4：
本实施例提供一种触摸显示面板，与实施例1-3不同的是，在实施例3的基础上，该触摸显示面板中的屏蔽层只设置有一个，且屏蔽层位于公共电极层的下方。该屏蔽层5设置在薄膜晶体管与公共电极层之间，如图5所示，该屏蔽层5与栅极23同层设置、且采用相同的材料同时形成，或者，如图6所示，该屏蔽层5与像素电极4同层设置、且采用相同的材料同时形成。
本实施例中的触摸显示面板的其他结构与实施例3中的相同，此处不再赘述。
本实施例中的屏蔽层5虽然只有一个，但仍然能对源极21和数据线在充电过程中存在的噪声进行屏蔽，只是相对于实施例3中的两个屏蔽层5的设置，屏蔽效果略有不及。
实施例5：
本实施例提供一种触摸显示面板，与实施例1-4不同的是，本实施例中，阵列基板不包括树脂层，像素电极4位于公共电极层3的上方，栅极23与公共电极层3之间设置有彩膜层11(如图7所示)；或者，像素电极位于公共电极层的下方，栅极与像素电极之间设置有彩膜层。
本实施例中，如图7所示，屏蔽层5设置有两个，一个位于公共电极层3的上方，且屏蔽层5与像素电极4同层设置、并采用相同的材料同时形成；另一个位于公共电极层3的下方，且屏蔽层5与栅极23同层设置、并采用相同的材料同时形成。
本实施例中的触摸显示面板的其他结构与实施例1-4的任意一个中的相同，此处不再赘述。
彩膜层11采用红(R)、绿(G)、蓝(B)树脂材料制成，红(R)、绿(G)、蓝(B)树脂材料既能使触摸显示面板进行彩色显示，还具有绝缘功能，能使处于相对下方的公共电极层3或像素电极4与栅极23之间相互绝缘。如此设置，能使触摸显示面板的厚度更薄，节约触摸显示面板的制造成本。
实施例6：
本实施例提供一种显示装置，包括上述实施例1-5任一中的触摸显示面板。
通过采用实施例1-5任一中的触摸显示面板，不仅降低了显示装置在显示和触控时的噪声，而且提高了显示装置的显示和触控效果。
本发明的有益效果：本发明所提供的触摸显示面板，通过设置屏蔽层，能够对公共电极层中的对应着数据线位置的间隔区域进行遮挡，从而能对源极和数据线上的电信号形成很好的屏蔽，大大降低了源极和数据线在充电过程中存在噪声的问题，进而使触摸显示面板的显示和触控能够同时正常进行。
需要说明的是，本发明的实施例中描述的位于公共电极层的 上方和/或下方表示与公共电极层位于不同层，可以采用两次工艺形成，并不用于限定其位置关系。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (11)

  1. 一种触摸显示面板，包括阵列基板，所述阵列基板包括基板以及设置在所述基板上的公共电极层、薄膜晶体管和与所述薄膜晶体管连接的数据线和像素电极，所述公共电极层包括相互绝缘且间隔设置的触控驱动电极和公共电极，在一帧画面的显示时间内，所述触控驱动电极用于分时地加载公共电极信号和触控驱动信号，其中，
    所述阵列基板还包括屏蔽层，所述屏蔽层遮挡所述触控驱动电极和所述公共电极之间的对应着所述数据线位置的间隔区域。
  2. 根据权利要求1所述的触摸显示面板，其中，所述屏蔽层位于所述公共电极层的上方和/或下方。
  3. 根据权利要求1或2所述的触摸显示面板，其中，所述屏蔽层加载公共电极信号。
  4. 根据权利要求3所述的触摸显示面板，其中，所述薄膜晶体管包括源极、漏极、栅极和有源层，所述源极和所述漏极同层设置在所述有源层的上方且分别位于所述有源层的两端；所述栅极设置在所述源极和所述漏极的上方；所述像素电极和所述公共电极层均位于所述薄膜晶体管的上方，所述像素电极与所述漏极连接；所述源极与所述数据线同层设置且相互连接。
  5. 根据权利要求4所述的触摸显示面板，其中，所述屏蔽层与所述栅极同层设置。
  6. 根据权利要求5所述的触摸显示面板，其中，所述屏蔽层与所述栅极采用相同的材料且同时形成。
  7. 根据权利要求4所述的触摸显示面板，其中，所述像素电极位于所述公共电极层的上方，所述屏蔽层与所述像素电极同层设置。
  8. 根据权利要求4所述的触摸显示面板，其中，所述像素电极位于所述公共电极层的下方，所述屏蔽层与所述像素电极同层设置。
  9. 根据权利要求7或8所述的触摸显示面板，其中，所述屏蔽层与所述像素电极采用相同的材料且同时形成。
  10. 根据权利要求4所述的触摸显示面板，其中，所述阵列基板还包括黑矩阵，所述黑矩阵位于所述有源层的下方，且所述黑矩阵完全遮挡所述有源层。
  11. 一种显示装置，其包括权利要求1-10中任意一项所述的触摸显示面板。
PCT/CN2014/088362 2014-05-20 2014-10-11 触摸显示面板和显示装置 Ceased WO2015176469A1 (zh)

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