WO2014015729A1 - 触控面板、其制造方法及其显示装置 - Google Patents

触控面板、其制造方法及其显示装置 Download PDF

Info

Publication number
WO2014015729A1
WO2014015729A1 PCT/CN2013/077742 CN2013077742W WO2014015729A1 WO 2014015729 A1 WO2014015729 A1 WO 2014015729A1 CN 2013077742 W CN2013077742 W CN 2013077742W WO 2014015729 A1 WO2014015729 A1 WO 2014015729A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductive
touch panel
layer
substrate
conductive ring
Prior art date
Application number
PCT/CN2013/077742
Other languages
English (en)
French (fr)
Inventor
叶惠林
余晶
林群峰
邱宗科
Original Assignee
宸鸿科技(厦门)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宸鸿科技(厦门)有限公司 filed Critical 宸鸿科技(厦门)有限公司
Publication of WO2014015729A1 publication Critical patent/WO2014015729A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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; CALCULATING OR 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
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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 touch technology, and in particular to a touch panel, a method of manufacturing the same, and a display device thereof.
  • touch panels are commonly used in electronic products, such as mobile phones and tablets.
  • the signal interference generated by the screen or the motherboard under the touch panel often causes the touch panel to malfunction. Therefore, in order to prevent the occurrence of malfunction, the general touch panel is provided with a conductive ring or a shielding layer in the touch panel structure, and the conductive ring and the shielding layer of the touch panel are passed through the flexible printed circuit ( Flexible Printed Circuit, FPC) is grounded.
  • FPC Flexible Printed Circuit
  • FIG. 1A is a perspective view of a conventional touch panel
  • FIG. 1B is FIG. 1A.
  • the conventional touch panel 3 has a substrate 31, a touch sensing layer 32, a shielding layer 33, a flexible printed circuit 34, a plurality of peripheral lines 35, and a conductive ring 36. Connect with multiple conductive points 37 .
  • the surface of the substrate 31 is divided into a peripheral region 30 which is located at the periphery of the substrate 31 and which forms a frame.
  • the plurality of peripheral lines 35 are also disposed on the upper surface of the substrate 31, and the plurality of peripheral lines 35 are electrically connected to the touch sensing layer 32, and the plurality of peripheral lines 35 are electrically connected to the flexible printed circuit. 34.
  • the signal generated by the touch sensing layer 32 is transmitted to the external controller through a flexible printed circuit 34 (not shown).
  • the conductive ring 36 is disposed on the upper surface of the substrate 31 and located in the peripheral region 30.
  • the shielding layer 33 is disposed on the lower surface of the substrate 31 and electrically connected to the shielding pins of the flexible printed circuit 34.
  • a plurality of conductive connection points 37 are spanned on the side of the substrate 31 and electrically connected to the substrate 31
  • the conductive ring 36 on the upper surface and the shielding layer on the lower surface of the substrate 31.
  • the peripheral area 30 of the conventional touch panel 3 is not only provided with a plurality of peripheral lines 35 but also provided with a conductive ring 36. This will make the area of the peripheral area 30 of the conventional touch panel 3 large, and it is not easy to realize the design requirements of the electronic products of the narrow frame.
  • the embodiment of the invention provides a touch panel, a manufacturing method thereof and a touch display device thereof.
  • the touch panel has a decorative layer, and the conductive ring is disposed under the decorative layer, thereby reducing the area occupied by the conductive ring occupying the peripheral area of the touch panel.
  • the embodiment of the invention provides a touch panel, which comprises a protective cover, a decorative layer, a conductive ring, a substrate, a touch sensing layer, a shielding layer and at least one conductive connection point.
  • the surface of the protective casing is divided into peripheral areas.
  • the decorative layer is disposed under the protective casing and located in the peripheral area.
  • the conductive ring is disposed under the decorative layer and is located in the peripheral area.
  • the substrate is located below the conductive ring.
  • the touch sensing layer is disposed on the upper surface of the substrate, and the shielding layer is disposed on the lower surface of the substrate.
  • the conductive connection point is disposed at a periphery of the shielding layer, and is used for electrically connecting the shielding layer to the conductive ring.
  • the method further includes a plurality of peripheral lines and an insulating layer, wherein the peripheral lines are located on the substrate, and are electrically connected to the touch sensing layer, and are also located under the decorative layer; the insulating layer is located at the Between the peripheral line and the conductive ring.
  • the insulating layer is an adhesive layer.
  • connection points are disposed at four corners of the shielding layer and span across the side of the substrate.
  • the conductive connection points are disposed on each side of the shielding layer, and at least one conductive connection point is disposed on each side.
  • the conductive connection points are electrically connected to each other to form a conductive connecting ring, and the conductive connecting ring is electrically connected to the shielding layer and the conductive ring.
  • the shielding layer is a planar structure formed by a transparent conductive material.
  • the shielding layer is a mesh structure formed by a transparent conductive material.
  • the shielding layer is grounded.
  • the conductive coil is electrically connected to a shield pin of a flexible printed circuit, and the shield pin is grounded.
  • the conductive ring and the conductive connection point are one of silver glue or conductive tape.
  • the conductive ring has at least one protrusion extending outward from the periphery, and the conductive connection point electrically connects the conductive ring to the shielding layer, and the conductive ring is mostly insulated by the shielding Covered by layers.
  • the substrate and the periphery of the shielding layer have at least one groove, and the conductive connection point electrically connects the conductive ring to the shielding layer, and the conductive ring is mostly covered by the insulating layer .
  • the embodiment of the invention further provides a method for manufacturing a touch panel, comprising: forming a decorative layer on the underside of the protective casing, wherein the surface of the protective casing is divided into a peripheral area, and the decorative layer is located in the peripheral area.
  • a conductive ring is formed under the decorative layer, and the conductive ring is located in the peripheral region.
  • a shielding layer is formed on the lower surface of the substrate. And forming at least one conductive connection point on the periphery of the shielding layer, wherein the conductive connection point is used to electrically connect the shielding layer to the conductive ring.
  • the method further includes: forming a plurality of peripheral lines on the substrate, wherein the peripheral lines are electrically connected to the touch sensing layer and are also located under the decorative layer; and forming an insulating layer to form the protective cover The substrate is bonded, wherein the insulating layer is located between the peripheral lines and the conductive ring.
  • the conductive ring and the conductive connection point are formed by one of coating silver glue or conductive tape.
  • the embodiment of the invention provides a touch display device, and the touch display device includes the touch panel and the display unit.
  • the touch panel is located above the display unit.
  • the touch panel provided by the embodiment of the present invention has better and uniform interference signal resistance and higher reliability.
  • the conductive ring is disposed under the decorative layer, thereby reducing the area occupied by the conductive ring occupying the peripheral area of the touch panel to suit the design of the electronic product of the narrow frame.
  • FIG. 1A is a perspective view of still another conventional touch panel.
  • FIG. 1B is a cross-sectional view of the conventional touch panel of FIG. 1A.
  • FIG. 2A is a top plan view of a touch panel according to an embodiment of the present invention.
  • 2B is a bottom view of the touch panel of the embodiment of the present invention.
  • 2C is a bottom view of a touch panel according to another embodiment of the present invention.
  • 2D is a bottom view of a touch panel according to another embodiment of the present invention.
  • 2E is a bottom view of a touch panel according to another embodiment of the present invention.
  • 2F is a bottom view of a touch panel according to another embodiment of the present invention.
  • FIG 3 is a cross-sectional view of a touch panel in accordance with an embodiment of the present invention.
  • FIG. 4 is a flow chart of a method of manufacturing a touch panel according to an embodiment of the present invention.
  • FIG. 5 is a block diagram of a touch display device according to an embodiment of the present invention.
  • Embodiments of the present invention provide a touch panel, a method of manufacturing the same, and a display device thereof.
  • the touch panel includes a protective cover.
  • the surface of the protective cover is divided into a peripheral area, and has a decorative layer in a peripheral area of the protective cover.
  • the decorative layer is disposed under the protective cover, and a conductive ring is disposed under the decorative layer.
  • the lower surface of the substrate of the touch panel has a shielding layer and a plurality of conductive connection points distributed around the periphery of the shielding layer, and the conductive connection points are used for electrically connecting the shielding layer to the conductive ring.
  • the conductive ring of the touch panel of the embodiment of the present invention is disposed under the decorative layer, the area of the peripheral area of the touch panel is not required to be occupied, so that the design requirements of the electronic product of the narrow frame are easily realized.
  • FIG. 2A is a top view of the touch panel according to the embodiment of the present invention
  • FIG. 2B FIG. 3 is a cross-sectional view of a touch panel according to an embodiment of the present invention.
  • FIG. The touch panel 5 includes a protective cover 51, a decorative layer 52, a conductive ring 53, and a shielding layer 54 , conductive connection point 55, substrate 56 and touch sensing layer 57.
  • the surface of the protective casing 51 is distinguished by a peripheral area 50 which is located in the protective casing 51 The perimeter is surrounded by a border.
  • the decorative layer 52 is disposed under the protective casing 51 and located in the peripheral region 50.
  • Conductor ring 53 is placed on the decorative layer 52 Below it is an annular structure and is also located in the peripheral region 50 to be obscured by the decorative layer 52.
  • the touch sensing layer 57 is disposed on the upper surface of the substrate 56.
  • Shield layer 54 is disposed on substrate 56 The lower surface.
  • the conductive connection point 55 is disposed around the shielding layer 54 and is used to electrically connect the shielding layer 54 to the conductive ring 53. Since the conductive ring 53 of the touch panel 5 is disposed on the decorative layer 52 Below, there is no need to additionally occupy the area of the peripheral area 50 of the touch panel 5, so it is easy to realize the design requirements of the electronic products of the narrow frame.
  • the protective casing 51 is a transparent insulating sheet such as glass or a transparent plastic plate.
  • the conductive ring 53 can be silver glue or conductive tape. Shield For example, a mesh structure or a planar structure formed of a transparent conductive material, a plurality of conductive connection points 55 are disposed at the periphery of the shielding layer 54, for example, at four corners, and are spanned on the substrate 56. The side surface is electrically connected to the shielding layer 54 on the lower surface of the substrate 56 and the conductive ring 53 on the upper surface of the substrate 56.
  • the conductive ring 53 can be electrically connected to the flexible printed circuit (not shown in Figure 2A). Shielding pins in Figure 2B and Figure 3).
  • the interference signals around the touch panel 5 can be respectively guided by the conductive ring 53 and the shielding layer 54 It is absorbed and the interference signal is released to the ground through the shield pins of the flexible printed circuit. Since the conductive ring 53 is generally made of a low-impedance material, and electrically connected to the shielding layer through the conductive connection point 55 54 Therefore, the shield layer 54 has a relatively uniform and low impedance value, and its points do not have different shielding effects due to the distance from the flexible printed circuit.
  • the touch panel 5 may further include a plurality of peripheral lines 59 and an insulating layer 58.
  • Multiple peripheral lines 59 are disposed on the substrate 56 upper surface, and electrically connected to the touch sensing layer 57 and a plurality of signal pins of the flexible printed circuit.
  • a plurality of peripheral lines 59 are also located below the decorative layer 52 and are obscured by the decorative layer 52.
  • Insulation layer 58 Located between the peripheral line 59 and the conductive ring 53, so that the peripheral line 59 is electrically insulated from the conductive ring 53.
  • the insulating layer 58 may be an adhesive layer such as optical glue, double-sided tape or UV (ultraviolet) light-solid glue or the like, the substrate 56 can be bonded to the protective case 51 through an adhesive layer.
  • the insulating layer 58 is a one-layer structure covering the peripheral lines. Above the touch sensing layer 57, but in another embodiment, the insulating layer 58 may be an annular structure covering only a plurality of peripheral lines 59 to electrically insulate the peripheral lines 59 from being electrically conductive. Circle 53 Just fine.
  • FIG. 2C is a bottom view of the touch panel according to another embodiment of the present invention.
  • the conductive ring 53' has at least one convex portion 53'a extending outward from the periphery, and the conductive ring 53' is mostly an insulating layer (Fig. 2C)
  • the cover is not shown, only the convex portion 53' a is exposed, and the conductive connection point 55 electrically connects the conductive ring 53' with the shielding layer 54 through the convex portion 53' a.
  • the conductive ring can be avoided 53 'Oxidized or eroded, and improves the reliability of the touch panel 5.
  • FIG. 2D is a bottom view of the touch panel according to another embodiment of the present invention.
  • the periphery of the substrate (not shown) and the shielding layer 54' has at least one groove 53''a, and the conductive ring 53'' is mostly insulated (Fig. 2D) Covered, not only through the recess 53 '' a exposes a small portion of the conductive ring 53 '', the conductive connection point 55 through the recess 53 '' a conductive ring 53 '' and the shielding layer 54 'Electrical connection.
  • the conductive ring 53'' is dimensioned so that most of it is covered by the insulating layer 58 (not shown in FIG. 2D), so that the conductive ring 53'' can be prevented from being oxidized or eroded, and the touch panel can be improved. 5 reliability.
  • FIG. 2E is a bottom view of the touch panel according to another embodiment of the present invention. Different from the touch panel 5 of Figure 2B, The conductive connection points 55 of the 2E touch panel 5'' are disposed on each side of the shielding layer 54 and at least one conductive connection point 55 is disposed on each side. Figure 2B and Figure 2E It can be seen that the number and arrangement of the conductive connection points 55 are not intended to limit the present invention.
  • FIG. 2F is a bottom view of the touch panel according to another embodiment of the present invention. Different from the touch panel 5 of Figure 2B, The 2F touch panel 5''' is surrounded by a plurality of conductive connection points around the shield layer 54 to form a conductive connection ring 55'.
  • the conductive connecting ring 55 ' electrically connects the conductive ring 53 to the shielding layer 54.
  • Conductive connecting ring 55 ' can be made of low-impedance conductive material, such as conductive adhesive and conductive silver adhesive. Therefore, the conductive connecting ring 55 ' is electrically connected to the shielding layer 54 and the conductive ring 53 to reduce the shielding layer.
  • the impedance of 54 and the conductive ring 53 is such that the shield layer 54 has a relatively uniform and low impedance value, and its points do not have different shielding effects due to the distance from the flexible printed circuit.
  • the touch panel 5 '''' has better interference signal resistance and is suitable for environments with very high interference signals.
  • FIG. 4 is a flowchart of a method for manufacturing a touch panel according to an embodiment of the present invention.
  • the decorative layer 52 is formed under the protective casing 51, wherein the surface of the protective casing 51 is divided into a peripheral region 50, and the decorative layer 52 is located at the peripheral region 50.
  • the conductive ring 53 is formed under the decorative layer 52, wherein the conductive ring 53 is also located in the peripheral region 50.
  • the touch sensing layer 57 is formed on the substrate 56. Upper surface.
  • a shield layer 54 is formed on the lower surface of the substrate 56.
  • step S705 a plurality of peripheral lines 59 are formed on the substrate 56.
  • a plurality of peripheral lines 59 are electrically connected to the touch sensing layer 57 and are also located under the decorative layer 52.
  • an insulating layer 58 is formed.
  • the protective case is bonded to the substrate, wherein the insulating layer 58 is located between the peripheral line 59 and the conductive ring 53, and the insulating layer 58 may be an adhesive layer, for example, the substrate 56 and the protective case are bonded using an adhesive layer. .
  • step S707 at least one conductive connection point 55 (or conductive connection ring 55') is disposed around the shielding layer 54, wherein the conductive contact 55 (or the conductive connection ring 55) ') is used to electrically connect the shielding layer 54 to the conductive ring 53, and the conductive ring 53 and the conductive contact 55 (or the conductive connecting ring 55) ') is formed by coating silver or conductive tape.
  • the conductive ring 53 and the conductive contact are formed by coating silver paste or conductive tape compared to the metal plating or printing process. The manufacturing process is simple and the production cost is low.
  • steps S703 and S704 It should be noted that the order of the steps of the above method for manufacturing the touch panel is not intended to limit the present invention. For example, steps S703 and S704 It can be reversed, or steps S701 and S702 can be followed by steps S703 and S704.
  • FIG. 5 is a block diagram of a touch display device according to an embodiment of the present invention.
  • Touch display device 8 includes touch panel 81
  • the display unit 82 is located on the display unit 82.
  • the touch panel 81 can be one of the above embodiments.
  • Display unit 82 Used to display the picture.
  • the touch display device 8 can also include a touch sensing circuit 83.
  • the touch panel 81 is electrically connected to the touch sensing circuit 83.
  • Touch sensing circuit 83 ( The driving circuit, the sensing circuit and the digital signal processing chip are included to determine whether there is a change in the signal amount on the touch panel 81, thereby obtaining the contact position.
  • the touch panel provided by the embodiments of the present invention has better and uniform interference signal resistance, lower manufacturing cost, and higher reliability.
  • the touch panel provided by the embodiments of the present invention is also applicable to the design of electronic products with narrow frames.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

一种触控面板（5），所述触控面板（5）包括保护外壳（51）、装饰层（52）、导电圈（53）、基板（56）、触控感测层（57）、屏蔽层（54）、至少一导电连接点（55）。保护外壳（51）表面区分有周边区域（50）。装饰层（52）设置于保护外壳（51）的下面，且位于周边区域（50）。导电圈（53）设置于装饰层（52）的下面，且位于周边区域（50），基板位于导电圈（53）的下面，触控感测层（57）设置于基板（56）的上表面，屏蔽层（54）设置于基板（56）的下表面，导电连接点（55）设置于屏蔽层（54）之周边，且用以将屏蔽层（54）电性连接导电圈（53）。触控面板（5）的导电圈（53）设置于装饰层（52）下面，藉此减少了导电圈（53）占用触控面板（5）之周边区域（50）的面积，适用于窄边框之电子产品的设计。

Description

触控面板、其制造方法及其显示装置 技术领域
本发明涉及触控技术领域，且特别是一种触控面板、其制造方法及其显示装置。
背景技术
目前触控面板普遍运用于电子产品中，例如手机及平板电脑等。然而，一般触控面板下方之屏幕或主板所产生的信号干扰常会造成触控面板误动作。因此，一般触控面板为了防止误动作的产生，会在触控面板结构中设置导电圈或屏蔽层，并且将触控面板之导电圈与屏蔽层通过可挠性印刷电路（ Flexible Printed Circuit ， FPC ）接地。如此，具有导电圈与屏蔽层之触控面板可降低屏幕或主板所产生的信号干扰。
请参照图 1A 与图 1B ，图 1A 是一种传统触控面板的立体图，图 1B 是图 1A 传统触控面板的剖面图。传统触控面板 3 具有基板 31 、触控感测层 32 、屏蔽层 33 、可挠性印刷电路 34 、多个周边线路 35 、导电圈 36 与多个导电连接点 37 。基板 31 的表面区分有一周边区域 30 ，周边区域 30 位于基板 31 的周边且形成一边框。触控感测层 32 与多个周边线路 35 均设置于基板 31 的上表面，多个周边线路 35 还位于周边区域 30 ，并电性连接于触控感测层 32 ，且多个周边线路 35 还电性连接可挠性印刷电路 34 ，通过可挠性印刷电路 34 将触控感测层 32 产生的信号传递至外部控制器 ( 图未绘示 ) 。导电圈 36 设置于基板 31 的上表面，且位于周边区域 30 。屏蔽层 33 设置于基板 31 的下表面，且电性连接可挠性印刷电路 34 的屏蔽接脚。多个导电连接点 37 跨设于基板 31 的侧面，且电性连接基板 31 上表面的导电圈 36 与基板 31 下表面的屏蔽层 33 。
但是，传统触控面板 3 的周边区域 30 不仅设置有多个周边线路 35 ，还设置有导电圈 36 ，将使得传统触控面板 3 的周边区域 30 面积变大，不易于实现窄边框的电子产品的设计需求。
发明内容
本发明实施例提供一种触控面板、其制造方法及其触控显示装置。于所述实施例中，触控面板具有装饰层，且导电圈设置于装饰层的下面，以藉此减少导电圈占用触控面板之周边区域的面积。
本发明实施例提供一种触控面板，所述触控面板包括保护外壳、装饰层、导电圈、基板、触控感测层、屏蔽层与至少一导电连接点。保护外壳表面区分有周边区域。装饰层设置于保护外壳的下面，且位于周边区域。导电圈设置于装饰层的下面，且位于周边区域。基板位于导电圈的下面。触控感测层设置于基板的上表面，屏蔽层设置于基板的下表面。导电连接点设置于屏蔽层之周边，且用以将屏蔽层电性连接导电圈。
进一步的，更包括多个周边线路与一绝缘层，其中该些周边线路位于该基板上，且电性连接于该触控感测层，且还位于该装饰层下；该绝缘层位于该些周边线路与该导电圈之间。
进一步的，该绝缘层为一黏接层。
进一步的，该些导电连接点布设于该屏蔽层之四个角落处，且跨设于该基板的侧面。
进一步的，该些导电连接点布设于该屏蔽层之各边上，且每一边上布设至少一个导电连接点。
进一步的，该些导电连接点相互电性连接进而形成一导电连接圈，该导电连接圈电性连接该屏蔽层与该导电圈。
进一步的，该屏蔽层为透明导电材质所形成的平面结构。
进一步的，该屏蔽层为透明导电材质所形成的网状结构。
进一步的，该屏蔽层接地。
进一步的，该导电圈电性连接至一可挠性印刷电路之屏蔽接脚，该屏蔽接脚接地。
进一步的，该导电圈及该导电连接点为银胶或导电胶带其中之一。
进一步的，该导电圈具有由周边向外延伸的至少一凸起部，该导电连接点通过该凸起部将该导电圈与该屏蔽层电性连接，且该导电圈大部份被该绝缘层所覆盖。
进一步的，该基板与该屏蔽层的周边具有至少一凹槽，该导电连接点通过该凹槽将该导电圈与该屏蔽层电性连接，且该导电圈大部份被该绝缘层所覆盖。
本发明实施例还提供一种触控面板的制造方法，包括：形成装饰层于保护外壳的下面，其中保护外壳的表面区分有周边区域，装饰层位于周边区域。形成导电圈于装饰层的下面，且导电圈位于周边区域。形成触控感测层于基板的上表面，其中基板位于导电圈的下面。形成屏蔽层于基板的下表面。以及形成至少一导电连接点于屏蔽层的周边，其中导电连接点用以将屏蔽层电性连接于导电圈。
进一步的，更包括：形成多个周边线路于该基板上，其中该些周边线路电性连接于该触控感测层，且还位于该装饰层下；以及形成一绝缘层将该保护外壳与该基板贴合，其中该绝缘层位于该些周边线路与该导电圈之间。
进一步的，该导电圈及该导电连接点为涂布银胶或导电胶带之其中之一形成。
本发明实施例提供一种触控显示装置，所述触控显示装置包括上述触控面板与显示单元。触控面板位于显示单元之上。
综上所述，本发明实施例所提供的触控面板具有较佳且均匀的干扰信号抵抗能力与较高的可靠性。除此之外，导电圈被设置于装饰层的下面，藉此减少了导电圈占用触控面板之周边区域的面积，以适用于窄边框之电子产品的设计。
为使能更进一步了解本发明之特征及技术内容，请参阅以下有关本发明之详细说明与附图，但是此等说明与所附图式仅用来说明本发明，而非对本发明的权利范围作任何的限制。
附图说明
图 1A 是又一种传统触控面板的立体图。
图 1B 是图 1A 之传统触控面板的剖面图。
图 2A 是本发明实施例的触控面板之俯视图。
图 2B 是本发明实施例的触控面板之仰视图。
图 2C 是本发明另一实施例之触控面板之仰视图。
图 2D 是本发明另一实施例之触控面板之仰视图。
图 2E 是本发明另一实施例之触控面板之仰视图。
图 2F 是本发明另一实施例之触控面板之仰视图。
图 3 是本发明实施例的触控面板之剖面图。
图 4 是本发明实施例的触控面板之制造方法的流程图。
图 5 是本发明实施例的触控显示装置之方块图。
具体实施方式
下面结合附图与具体实施方式对本发明作进一步详细描述。
本发明实施例提供一种触控面板、其制造方法及其显示装置。触控面板包括保护外壳，保护外壳的表面区分有周边区域，且在保护外壳之周边区域具有装饰层，装饰层设置于保护外壳的下面，并于装饰层之下面设置导电圈。触控面板之基板下表面具有屏蔽层以及分布于屏蔽层周边之多个导电连接点，且导电连接点用以将屏蔽层电性连接导电圈。
由于本发明实施例的触控面板之导电圈设置于装饰层的下面，无需额外占用触控面板之周边区域的面积，因此易于实现窄边框之电子产品的设计要求。
请参考图 2A 、图 2B 与图 3 ，图 2A 是本发明实施例的触控面板之俯视图，图 2B 是本发明实施例的触控面板之仰视图，图 3 是本发明实施例的触控面板之剖面图。触控面板 5 包括保护外壳 51 、装饰层 52 、导电圈 53 、屏蔽层 54 、导电连接点 55 、基板 56 与触控感测层 57 。保护外壳 51 的表面区分有周边区域 50 ，周边区域 50 位于保护外壳 51 的周边且形成边框。装饰层 52 设置于保护外壳 51 的下面，且位于该周边区域 50 。导电圈 53 设置于装饰层 52 的下面，其为环状结构，且亦位于周边区域 50 ，以被装饰层 52 遮蔽。触控感测层 57 设置于基板 56 的上表面。屏蔽层 54 设置于基板 56 的下表面。导电连接点 55 设置于屏蔽层 54 之周边，且用以将屏蔽层 54 电性连接导电圈 53 。由于触控面板 5 之导电圈 53 设置于装饰层 52 的下面，无需额外占用触控面板 5 的周边区域 50 之面积，故易于实现窄边框之电子产品的设计要求。
另外，保护外壳 51 为透明绝缘板材，例如玻璃或透明塑胶板。导电圈 53 可以为银胶或导电胶带。屏蔽层 54 例如为由透明导电材质所形成的网状结构或平面结构，多个导电连接点 55 设置于屏蔽层 54 之周边，例如四个角落处，且跨设于基板 56 的侧面，藉以电性连接基板 56 下表面的屏蔽层 54 与基板 56 上表面的导电圈 53 。另外，导电圈 53 可以电性连接可挠性印刷电路（未绘于图 2A 、图 2B 与图 3 中）的屏蔽接脚。如此，触控面板 5 周围的干扰信号将可以分别被导电圈 53 与屏蔽层 54 所吸收，并且通过可挠性印刷电路的屏蔽接脚释放干扰信号至大地。由于导电圈 53 一般藉由低阻抗的材质制作，且通过导电连接点 55 电性连接屏蔽层 54 ，因此屏蔽层 54 具有较均匀且较低之阻抗值，且其各点不会因为与可挠性印刷电路距离不同而具有不同的屏蔽效果。
除此之外，触控面板 5 更可以包括多个周边线路 59 与绝缘层 58 。多个周边线路 59 设置于基板 56 之上表面，且电性连接触控感测层 57 与可挠性印刷电路的多个信号接脚。多个周边线路 59 还位于装饰层 52 之下，以被装饰层 52 遮蔽。绝缘层 58 位于周边线路 59 与导电圈 53 之间，以使周边线路 59 电性绝缘于导电圈 53 。绝缘层 58 可以为粘接层，例如光学胶，双面胶或 UV(ultraviolet) 光固胶等，基板 56 可以通过粘接层与保护外壳 51 贴合。于本实施例中，绝缘层 58 为一整层的结构，覆盖于周边线路 59 与触控感测层 57 之上，但于另一实施例中，绝缘层 58 可以为一环状结构，其仅覆盖于多个周边线路 59 之上，以使周边线路 59 电性绝缘于导电圈 53 即可。
请参照图 2C ，图 2C 是本发明另一实施例之触控面板之仰视图。不同于图 2B 的触控面板 5 ，于图 2C 的触控面板 5 '中，导电圈 53 '具有由周边向外延伸的至少一凸起部 53 ' a ，导电圈 53 '大部分为绝缘层（图 2C 未绘示）覆盖，仅露出凸起部 53 ' a ，导电连接点 55 通过凸起部 53 ' a 将导电圈 53 '与屏蔽层 54 电性连接。藉此，可避免导电圈 53 '被氧化或被侵蚀，并提升触控面板 5 的可靠性。
请参照图 2D ，图 2D 是本发明另一实施例之触控面板之仰视图。不同于图 2B 的触控面板 5 ，于图 2D 的触控面板 5 ''中，基板 ( 图未示 ) 与屏蔽层 54 '的周边具有至少一凹槽 53 '' a ，导电圈 53 ''大部份被绝缘层（图 2D 未绘示）所覆盖，仅通过凹槽 53 '' a 曝露出少部分的导电圈 53 ''，导电连接点 55 通过凹槽 53 '' a 将导电圈 53 ''与屏蔽层 54 '电性连接。藉此，导电圈 53 ''通过尺寸设计使其大部分为绝缘层 58 （图 2D 未绘示）覆盖，故可避免导电圈 53 ''被氧化或被侵蚀，并提升触控面板 5 的可靠性。
请参考图 2E ，图 2E 是本发明另一实施例之触控面板之仰视图。不同于图 2B 的触控面板 5 ，图 2E 的触控面板 5 '''的导电连接点 55 布设于屏蔽层 54 之各边上，且每一边上布设至少一个导电连接点 55 。由图 2B 与图 2E 可以得知，导电连接点 55 的数量与设置位置皆非用以限制本发明。
请参考图 2F ，图 2F 是本发明另一实施例之触控面板之仰视图。不同于图 2B 的触控面板 5 ，图 2F 的触控面板 5 ''''于屏蔽层 54 之周边布满多个导电连接点，以形成一个导电连接圈 55 '。此导电连接圈 55 '使得导电圈 53 电性连接屏蔽层 54 ，导电连接圈 55 '可采用低阻抗的导电材质制作，例如导电胶、导电银胶，故导电连接圈 55 '电性连接于屏蔽层 54 和导电圈 53 后，可降低屏蔽层 54 和导电圈 53 的阻抗，使得屏蔽层 54 具有较均匀且较低之阻抗值，且其各点不会因为与可挠性印刷电路距离不同而具有不同的屏蔽效果。换言之，相较于图 2B 与 2E 的触控面板 5 与 5 '，触控面板 5 ''''具有更佳的干扰信号抵抗能力，适用于干扰信号十分严重的环境。
请参照图 3 与图 4 ，图 4 是本发明实施例的触控面板之制造方法的流程图。首先，在步骤 S701 中，形成装饰层 52 于保护外壳 51 的下面，其中保护外壳 51 的表面区分有周边区域 50 ，装饰层 52 位于周边区域 50 。接着，在步骤 S702 中，形成导电圈 53 于装饰层 52 的下面，其中导电圈 53 也位于周边区域 50 。接着，在步骤 S703 中，形成触控感测层 57 于基板 56 的上表面。然后，在步骤 S704 中，形成屏蔽层 54 于基板 56 的下表面。之后，在步骤 S705 中，形成多个周边线路 59 于基板 56 之上，其中多个周边线路 59 电性连接于触控感测层 57 ，且还位于装饰层 52 下面。再者，在步骤 S706 中，形成绝缘层 58 将保护外壳与基板贴合，其中绝缘层 58 位于周边线路 59 与导电圈 53 之间，绝缘层 58 可以是粘接层，例如使用粘接层贴合基板 56 与保护外壳 51 。最后，在步骤 S707 中，于屏蔽层 54 的周边设置至少一导电连接点 55 （或导电连接圈 55 '），其中导电接点 55 （或导电连接圈 55 '）用以将屏蔽层 54 电性连接于导电圈 53 ，且导电圈 53 及导电接点 55 （或导电连接圈 55 '）为涂布银胶或导电胶带之其中之ㄧ形成，相较于金属镀膜或印刷制程，采用涂布银胶或导电胶带的方式形成导电圈 53 及导电接点 55 ，其制造程序简单且制作成本较低。
在此请注意，上述触控面板之制造方法的各步骤顺序并非用以限制本发明。举例来说，步骤 S703 与 S704 可以对调，或者，步骤 S701 与 S702 可以在步骤 S703 与 S704 之后。
请接着参照图 5 ，图 5 是本发明实施例的触控显示装置之方块图。触控显示装置 8 包括触控面板 81 、显示单元 82 ，触控面板 81 位于显示单元 82 之上，触控面板 81 可以是上述各实施例的其中一种的触控面板。显示单元 82 用以显示画面。触控显示装置 8 还可以包括一触控感测电路 83 ，其中触控面板 81 电性连接触控感测电路 83 。触控感测电路 83( 包括驱动电路、感测电路与数位信号处理晶片 ) 用以判断触控面板 81 上是否有信号量的变化，以藉此获得触点位置。
综上所述，本发明实施例所提供的触控面板具有较佳且均匀的干扰信号抵抗能力、较低的制造成本与较高的可靠性。除此之外，本发明实施例所提供的触控面板还适用于窄边框之电子产品的设计。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明保护的范围之内。

Claims (17)

  1. 一种触控面板，其特征在于，包括：
    保护外壳，其表面区分有一周边区域；
    装饰层，设置于该保护外壳的下面，且位于该周边区域；
    导电圈，设置于该装饰层的下面，且位于该周边区域；
    基板，位于该导电圈的下面；
    触控感测层，设置于该基板的上表面；
    屏蔽层，设置于该基板的下表面；以及
    至少一导电连接点，设置于该屏蔽层之周边，且用以将该屏蔽层电性连接于该导电圈。
  2. 根据权利要求 1 所述的触控面板，其特征在于，更包括多个周边线路与一绝缘层，其中该些周边线路位于该基板上，且电性连接于该触控感测层，且还位于该装饰层下；该绝缘层位于该些周边线路与该导电圈之间。
  3. 根据权利要求2所述的触控面板，其特征在于，该绝缘层为一黏接层。
  4. 根据权利要求1所述的触控面板，其特征在于，该些导电连接点布设于该屏蔽层之四个角落处，且跨设于该基板的侧面。
  5. 根据权利要求1所述的触控面板，其特征在于，该些导电连接点布设于该屏蔽层之各边上，且每一边上布设至少一个导电连接点。
  6. 根据权利要求5所述的触控面板，其特征在于，该些导电连接点相互电性连接进而形成一导电连接圈，该导电连接圈电性连接该屏蔽层与该导电圈。
  7. 根据权利要求1所述的触控面板，其特征在于，该屏蔽层为透明导电材质所形成的平面结构。
  8. 根据权利要求1所述的触控面板，其特征在于，该屏蔽层为透明导电材质所形成的网状结构。
  9. 根据权利要求1所述的触控面板，其特征在于，该屏蔽层接地。
  10. 根据权利要求1所述的触控面板，其特征在于，该导电圈电性连接至一可挠性印刷电路之屏蔽接脚，该屏蔽接脚接地。
  11. 根据权利要求1所述的触控面板，其特征在于，该导电圈及该导电连接点为银胶或导电胶带其中之一。
  12. 根据权利要求2所述的触控面板，其特征在于，该导电圈具有由周边向外延伸的至少一凸起部，该导电连接点通过该凸起部将该导电圈与该屏蔽层电性连接，且该导电圈大部份被该绝缘层所覆盖。
  13. 根据权利要求1所述的触控面板，其特征在于，该基板与该屏蔽层的周边具有至少一凹槽，该导电连接点通过该凹槽将该导电圈与该屏蔽层电性连接，且该导电圈大部份被该绝缘层所覆盖。
  14. 一种触控面板的制造方法，其特征在于，包括：
    形成一装饰层于一保护外壳的下面，其中该保护外壳的表面区分有一周边区域，该装饰层位于该周边区域；
    形成一导电圈于该装饰层的下面，且该导电圈位于该周边区域；
    形成一触控感测层于一基板的上表面其中该基板于该导电圈的下面；
    形成一屏蔽层于该基板的下表面；以及
    形成至少一导电连接点于该屏蔽层的周边，其中该导电接点用以将该屏蔽层电性连接于该导电圈。
  15. 根据权利要求14所述的触控面板的制造方法，其特征在于，更包括：
    形成多个周边线路于该基板上，其中该些周边线路电性连接于该触控感测层，且还位于该装饰层下；以及
    形成一绝缘层将该保护外壳与该基板贴合，其中该绝缘层位于该些周边线路与该导电圈之间。
  16. 根据权利要求14所述的触控面板的制造方法，其特征在于，该导电圈及该导电连接点为涂布银胶或导电胶带之其中之一形成。
  17. 一种触控显示装置，其特征在于，包括：
    一显示单元；以及
    一触控面板，位于该显示单元之上，该触控面板包括：
    一保护外壳，其表面区分有一周边区域；
    一装饰层，设置于该保护外壳的下面，且位于该周边区域；
    一导电圈，设置于该装饰层的下面，且位于该周边区域；
    一基板，位于该导电圈的下面；
    一触控感测层，设置于该基板的上表面；
    一屏蔽层，设置于该基板的下表面；以及
    至少一导电连接点，设置于该屏蔽层之周边，且用以将该屏蔽层电性连接于该导电圈。
PCT/CN2013/077742 2012-07-24 2013-06-24 触控面板、其制造方法及其显示装置 WO2014015729A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210257940.X 2012-07-24
CN201210257940.XA CN103576951B (zh) 2012-07-24 2012-07-24 触控面板、其制造方法及其显示装置

Publications (1)

Publication Number Publication Date
WO2014015729A1 true WO2014015729A1 (zh) 2014-01-30

Family

ID=49030617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/077742 WO2014015729A1 (zh) 2012-07-24 2013-06-24 触控面板、其制造方法及其显示装置

Country Status (3)

Country Link
CN (1) CN103576951B (zh)
TW (2) TWM454580U (zh)
WO (1) WO2014015729A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103576951B (zh) * 2012-07-24 2016-12-28 宸鸿科技(厦门)有限公司 触控面板、其制造方法及其显示装置
CN207249638U (zh) * 2017-08-23 2018-04-17 意力(广州)电子科技有限公司 触控显示屏及触控电子产品
CN112837623B (zh) * 2021-02-26 2024-04-16 京东方科技集团股份有限公司 显示模组及电子设备
TWI814357B (zh) * 2022-04-22 2023-09-01 大陸商鴻通科技（廈門）有限公司 電子裝置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101533319A (zh) * 2008-03-12 2009-09-16 台达电子工业股份有限公司 触控面板及其制作方法
US20100171718A1 (en) * 2009-01-08 2010-07-08 Seiko Epson Corporation Method for manufacturing touch panel, touch panel, display device, and electronic apparatus
CN102221928A (zh) * 2011-03-18 2011-10-19 友达光电股份有限公司 触控显示装置、触控面板以及其制作方法
TWM424751U (en) * 2011-09-10 2012-03-11 Tpk Touch Solutions Xiamen Inc Touch panel with shield structure
CN202815764U (zh) * 2012-07-24 2013-03-20 宸鸿科技(厦门)有限公司 触控面板及其显示装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001282454A (ja) * 2000-03-31 2001-10-12 Nissha Printing Co Ltd 周縁部に遮光性を有するタッチパネル
TWM374607U (en) * 2009-08-27 2010-02-21 Minlad Invest Ltd Resistive touch panel structure
TWI395999B (zh) * 2009-09-18 2013-05-11 Innolux Corp 觸控面板
TWM384361U (en) * 2010-03-22 2010-07-11 Minlad Invest Ltd Capacitive touch panel
CN102573253A (zh) * 2010-12-15 2012-07-11 东莞万士达液晶显示器有限公司 装饰板以及具有装饰板的电子装置
CN103576951B (zh) * 2012-07-24 2016-12-28 宸鸿科技(厦门)有限公司 触控面板、其制造方法及其显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101533319A (zh) * 2008-03-12 2009-09-16 台达电子工业股份有限公司 触控面板及其制作方法
US20100171718A1 (en) * 2009-01-08 2010-07-08 Seiko Epson Corporation Method for manufacturing touch panel, touch panel, display device, and electronic apparatus
CN102221928A (zh) * 2011-03-18 2011-10-19 友达光电股份有限公司 触控显示装置、触控面板以及其制作方法
TWM424751U (en) * 2011-09-10 2012-03-11 Tpk Touch Solutions Xiamen Inc Touch panel with shield structure
CN202815764U (zh) * 2012-07-24 2013-03-20 宸鸿科技(厦门)有限公司 触控面板及其显示装置

Also Published As

Publication number Publication date
CN103576951A (zh) 2014-02-12
CN103576951B (zh) 2016-12-28
TWM454580U (zh) 2013-06-01
TW201405391A (zh) 2014-02-01
TWI493398B (zh) 2015-07-21

Similar Documents

Publication Publication Date Title
WO2018159926A1 (ko) 안테나가 구비된 터치 센서
WO2013053215A1 (en) Touch device and manufacturing method thereof
CN202815764U (zh) 触控面板及其显示装置
WO2014117708A1 (en) Touch panel and methods for forming the same
CN107340926B (zh) 一种触控板及led显示屏
WO2014173217A1 (zh) 触控面板及其制作方法
WO2015010507A1 (zh) 触控电极结构及其应用之触控面板
WO2020156456A1 (zh) 柔性电路板及制作方法、电子装置模组及电子装置
US11589461B2 (en) Flexible printed circuit and manufacturing method thereof, electronic device module and electronic device
WO2020156595A9 (zh) 柔性电路板及制作方法、显示装置、电路板结构及其显示面板
WO2014015729A1 (zh) 触控面板、其制造方法及其显示装置
WO2013170684A1 (zh) 触控面板及其应用的触控显示设备
CN205318347U (zh) 一种触控显示面板
WO2013137561A1 (ko) 단일 적층 구조를 갖는 개량된 접촉 위치 감지 패널
EP3920671B1 (en) Flexible circuit board and manufacturing method, display device, circuit board structure and display panel thereof
WO2016090691A1 (zh) 电磁感应式触控基板及显示装置
WO2010038957A2 (ko) 터치패널의 제조방법 및 이에 의해 제조되는 터치패널
WO2019095500A1 (zh) 一种显示面板以及显示器
TW201709032A (zh) 具天線模組之金屬網格觸控薄膜及內嵌式觸控顯示模組
US9188803B2 (en) Touch panel
CN115113764A (zh) 显示面板及显示装置
WO2021254420A1 (zh) Oled显示面板及显示装置
WO2013166742A1 (zh) 液晶显示模组及液晶显示装置
WO2013053263A1 (en) Pattern of a capacitive touch device and manufacturing method thereof
WO2014194686A1 (zh) 触控面板

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13822180

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13822180

Country of ref document: EP

Kind code of ref document: A1