TWI652607B - Touch panel and touch display device using same - Google Patents
Touch panel and touch display device using same Download PDFInfo
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- TWI652607B TWI652607B TW107107306A TW107107306A TWI652607B TW I652607 B TWI652607 B TW I652607B TW 107107306 A TW107107306 A TW 107107306A TW 107107306 A TW107107306 A TW 107107306A TW I652607 B TWI652607 B TW I652607B
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- 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
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- 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
- G06F3/0412—Digitisers structurally integrated in a display
Abstract
一種觸控面板，其定義有觸控區和圍繞觸控區的非觸控區，所述觸控面板包括基板以及依次層疊在基板上的複數第一觸控電極、絕緣層、以及複數第二觸控電極，第一和第二觸控電極位於觸控區，所述觸控面板還包括位於非觸控區的多條第一和第二走線，第一走線與第一觸控電極連接，第二走線與第二觸控電極連接，非觸控區設置有綁定區以使走線連接控制電路，綁定區設置有與走線連接的複數連接墊，第二觸控電極在非觸控區延伸形成多條延伸走線，每一條延伸走線延伸至所述綁定區並覆蓋搭接一個連接墊。本發明可保證第二觸控電極與控制電路的電性連接。A touch panel defines a touch area and a non-touch area surrounding the touch area. The touch panel includes a substrate and a plurality of first touch electrodes, an insulating layer, and a plurality of second layers that are sequentially stacked on the substrate. Touch electrodes. The first and second touch electrodes are located in the touch area. The touch panel further includes a plurality of first and second traces located in a non-touch area. The first traces and the first touch electrode Connection, the second trace is connected with the second touch electrode, the non-touch area is provided with a binding area to connect the trace to the control circuit, the binding area is provided with a plurality of connection pads connected to the trace, and the second touch electrode A plurality of extension traces are formed in the non-touch area, and each extension trace extends to the binding area and covers a connection pad. The invention can ensure the electrical connection between the second touch electrode and the control circuit.
Description
本發明涉及一種觸控面板及應用其的觸控顯示裝置。The invention relates to a touch panel and a touch display device using the same.
習知技術中，觸控面板通常包括基材、依次層疊在基材表面的複數觸控驅動（Tx）電極、絕緣層和複數觸控感應（Rx）電極，其中絕緣層層疊在所述複數Tx電極和所述複數Rx電極之間，所述基板上還設置有與所述Tx觸控電極和所述Rx電極分別電性連接的多條金屬引線。其中觸控面板可劃分成顯示觸控區以及周邊線路區，所述複數Tx電極和複數Rx電極設置於顯示觸控區中，所述多條金屬引線設置於周邊線路區中，各條金屬引線電性連接於對應之觸控電極。In the conventional technology, a touch panel generally includes a substrate, a plurality of touch driving (Tx) electrodes, an insulating layer, and a plurality of touch sensing (Rx) electrodes which are sequentially stacked on the surface of the substrate, wherein the insulating layer is stacked on the plurality of Tx Between the electrode and the plurality of Rx electrodes, a plurality of metal leads electrically connected to the Tx touch electrode and the Rx electrode are respectively disposed on the substrate. The touch panel can be divided into a display touch area and a peripheral circuit area. The plurality of Tx electrodes and a plurality of Rx electrodes are disposed in the display touch area. The plurality of metal leads are disposed in the peripheral circuit area. It is electrically connected to the corresponding touch electrode.
然，當絕緣層的厚度較大時，且絕緣層的外邊緣相對所述基材表面的坡度較大時，形成在所述絕緣層上的所述Rx電極與非觸控區的金屬引線搭接時，容易造成斷線等搭接不良，進而影響觸控面板之運作。However, when the thickness of the insulating layer is large and the slope of the outer edge of the insulating layer with respect to the surface of the substrate is large, the Rx electrode formed on the insulating layer overlaps the metal lead of the non-touch area. When connected, it is easy to cause poor connection, such as disconnection, and then affect the operation of the touch panel.
鑒於此，有必要提供一種觸控面板，其觸控電極與周邊線路具有良好的電性連接。In view of this, it is necessary to provide a touch panel whose touch electrodes have good electrical connection with peripheral circuits.
一種觸控面板，其定義有觸控區和圍繞觸控區的非觸控區，所述觸控面板包括基板以及依次層疊在基板上的複數第一觸控電極、絕緣層、以及複數第二觸控電極，所述複數第一觸控電極和所述複數第二觸控電極位於所述觸控區，所述觸控面板還包括設置在基板上且位於非觸控區的多條第一走線和多條第二走線，所述多條第一走線與第一觸控電極連接，所述多條第二走線與第二觸控電極連接，所述非觸控區設置有綁定區以使所述多條第一走線和所述多條第二走線連接控制電路，綁定區設置有與所述多條第一走線和所述多條第二走線分別連接的複數連接墊以與控制電路連接，所述第二觸控電極在非觸控區延伸形成多條延伸走線，每一條延伸走線延伸至所述綁定區並覆蓋搭接一個連接墊。A touch panel defines a touch area and a non-touch area surrounding the touch area. The touch panel includes a substrate and a plurality of first touch electrodes, an insulating layer, and a plurality of second layers that are sequentially stacked on the substrate. A touch electrode, wherein the plurality of first touch electrodes and the plurality of second touch electrodes are located in the touch area, and the touch panel further includes a plurality of first bars disposed on a substrate and located in a non-touch area Traces and multiple second traces, the multiple first traces are connected to the first touch electrode, the multiple second traces are connected to the second touch electrode, and the non-touch area is provided with A binding area for connecting the plurality of first traces and the plurality of second traces to a control circuit, and the binding area is provided separately from the plurality of first traces and the plurality of second traces The plurality of connected connection pads are connected to the control circuit. The second touch electrode extends in the non-touch area to form a plurality of extension traces. Each extension trace extends to the binding area and covers a connection pad. .
進一步的，所述延伸走線遠離所述連接墊的表面上設置有異方性導電膜，所述異方性導電膜位於所述控制電路與所述延伸走線之間以使控制電路連通所述延伸走線。Further, an anisotropic conductive film is disposed on a surface of the extended wiring away from the connection pad, and the anisotropic conductive film is located between the control circuit and the extended wiring to communicate the control circuit. The extended wiring.
進一步的，所述絕緣層覆蓋所述觸控區和非觸控區的所述多條第一走線和所述多條第二走線，但不覆蓋綁定區。Further, the insulating layer covers the plurality of first traces and the plurality of second traces of the touch area and the non-touch area, but does not cover the binding area.
進一步的，所述異方性導電膜中含有的導電粒子的直徑大於所述絕緣層的厚度。Further, a diameter of the conductive particles contained in the anisotropic conductive film is larger than a thickness of the insulating layer.
進一步的，所述複數第一觸控電極排布成沿第一方向延伸的多行，每一行中每相鄰的兩個第一觸控電極為電性連接，使每一行的第一觸控電極形成一個第一觸控電極串，不同行的第一觸控電極為相互電性絕緣的；所述複數第二觸控電極排布成沿第二方向延伸的多列，每一列中每相鄰的兩個第二觸控電極為電性連接，使每一列的第二觸控電極形成一個第二觸控電極串，不同列的第二觸控電極為相互電性絕緣的。Further, the plurality of first touch electrodes are arranged in a plurality of rows extending along the first direction, and each adjacent two first touch electrodes in each row are electrically connected to make the first touch of each row The electrodes form a first touch electrode string, and the first touch electrodes in different rows are electrically insulated from each other; the plurality of second touch electrodes are arranged in a plurality of columns extending along the second direction, and each phase in each column Adjacent two second touch electrodes are electrically connected, so that the second touch electrodes in each column form a second touch electrode string, and the second touch electrodes in different columns are electrically insulated from each other.
進一步的，每一條第一走線一端連接一個第一觸控電極串，另一端連接綁定區的一個連接墊，每一條第二走線一端連接一個第二觸控電極串，另一端連接設置在綁定區的一個連接墊。Further, one end of each first trace is connected to a first touch electrode string, the other end is connected to a connection pad of the binding area, one end of each second trace is connected to a second touch electrode string, and the other end is connected to the device. A connection pad in the binding area.
進一步的，所述觸控面板還包括設置在所述絕緣層上的複數虛設電極，所述複數虛設電極設置在相鄰的兩個第二觸控電極串之間的間隙，所述複數虛設電極相互之間不連通，且所述虛設電極也不與任何的走線連接。Further, the touch panel further includes a plurality of dummy electrodes disposed on the insulating layer, the plurality of dummy electrodes disposed on a gap between two adjacent second touch electrode strings, and the plurality of dummy electrodes They are not connected to each other, and the dummy electrodes are not connected to any traces.
進一步的，所述複數虛設電極與第一觸控電極為一一對應的關係，每一個虛設電極在基板上的投影與一個第一觸控電極相重疊。Further, the plurality of dummy electrodes are in a one-to-one correspondence relationship with the first touch electrodes, and the projection of each of the dummy electrodes on the substrate overlaps with the first touch electrode.
進一步的，所述第二觸控電極和所述多條延伸走線由同一的導電材料層圖案化形成。Further, the second touch electrode and the plurality of extended traces are formed by patterning the same conductive material layer.
另外還有必要提供一種觸控顯示裝置，其包括顯示面板以及設置在所述顯示面板上的上述觸控面板。It is also necessary to provide a touch display device, which includes a display panel and the touch panel provided on the display panel.
本發明在習知技術的基礎上，藉由對第二觸控電極進行延伸形成延伸走線與綁定區的金屬連接墊進行連接，即使絕緣層的厚度較大，也可保證第二觸控電極與周邊線路（如控制電路）的電性連接，有效提高觸控感測效果。On the basis of the conventional technology, the present invention connects the metal connecting pads of the bonding line by forming an extension trace by extending the second touch electrode, which can ensure the second touch even if the thickness of the insulation layer is large. The electrical connection between the electrodes and peripheral circuits (such as the control circuit) effectively improves the touch sensing effect.
附圖中示出了本發明的實施例，本發明可以藉由多種不同形式實現，而並不應解釋為僅局限於這裡所闡述的實施例。相反，提供這些實施例是為了使本發明更為全面和完整的公開，並使本領域的技術人員更充分地瞭解本發明的範圍。為了清晰可見，在圖中，層和區域的尺寸被放大了。 可以理解，儘管第一、第二等這些術語可以在這裡使用來描述各種元件、元件、區域、層和/或部分，但這些元件、元件、區域、層和/或部分不應僅限於這些術語。這些術語只是被用來區分元件、元件、區域、層和/或部分與另外的元件、元件、區域、層和/或部分。因此，只要不脫離本發明的教導，下面所討論的第一部分、元件、區域、層和/或部分可以被稱為第二元件、元件、區域、層和/或部分。The drawings show embodiments of the present invention, and the present invention can be implemented in many different forms, and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. For clarity, the dimensions of layers and regions have been exaggerated in the figure. It is understood that although the terms first, second, etc. may be used herein to describe various elements, elements, regions, layers and / or sections, these elements, elements, regions, layers and / or sections should not be limited to these terms . These terms are only used to distinguish one element, element, region, layer and / or part from another element, element, region, layer and / or part. Accordingly, the first part, element, region, layer, and / or part discussed below can be referred to as the second element, element, region, layer, and / or part without departing from the teachings of the present invention.
這裡所用的專有名詞僅用於描述特定的實施例而並非意圖限定本發明。如這裡所用的，單數形式“一”、“一個”和“該”也意圖涵蓋複數形式，除非上下文清楚指明是其它情況。還應該理解，當在說明書中使用術語“包含”、“包括”時，指明了所述特徵、整體、步驟、操作、元件和/或部件的存在，然不排除一個或複數其它特徵、整體、步驟、操作、元件和/或部件的存在。The proper nouns used herein are only used to describe specific embodiments and are not intended to limit the present invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that when the terms "comprising" and "including" are used in the specification, the presence of stated features, integers, steps, operations, elements and / or components is indicated, but one or more other features, integers, The presence of steps, operations, elements and / or components.
這裡參考剖面圖描述本發明的實施例，這些剖面圖是本發明理想化的實施例（和中間構造）的示意圖。因而，由於製造工藝和/或公差而導致的圖示的形狀不同是可以預見的。因此，本發明的實施例不應解釋為限於這裡圖示的區域的特定形狀，而應包括例如由於製造而產生的形狀的偏差。圖中所示的區域本身僅是示意性的，它們的形狀並非用於圖示裝置的實際形狀，並且並非用於限制本發明的範圍。Embodiments of the present invention are described here with reference to cross-sectional views, which are schematic diagrams of idealized embodiments (and intermediate structures) of the present invention. Thus, variations in the shapes of the illustrations as a result of manufacturing processes and / or tolerances are to be expected. Therefore, the embodiments of the present invention should not be interpreted as being limited to the specific shape of the region illustrated here, but should include deviations in the shape due to, for example, manufacturing. The regions shown in the figures are schematic only, and their shapes are not intended to illustrate the actual shape of the device and are not intended to limit the scope of the invention.
除非另外定義，這裡所使用的所有術語（包括技術和科學術語）具有與本發明所述領域的普通技術人員所通常理解的含義相同的含義。還應當理解，比如在通用的辭典中所定義的那些的術語，應解釋為具有與它們在相關領域的環境中的含義相一致的含義，而不應以過度理想化或過度正式的含義來解釋，除非在本文中明確地定義。Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in the general dictionary should be interpreted to have meanings consistent with their meaning in the context of the relevant field, and should not be interpreted in an over-ideal or over-formal meaning Unless explicitly defined in this article.
請參閱圖1-2，本發明較佳實施方式的觸控面板100，其定義有觸控區101和圍繞觸控區101的非觸控區103。請結合參閱圖3，所述觸控面板100包括基板10形成在基板10一表面上的複數第一觸控電極20、形成在所述基板10上且覆蓋所述複數第一觸控電極20的絕緣層40、以及形成在所述絕緣層40上的複數第二觸控電極30。所述複數第一觸控電極20與所述複數第二觸控電極30藉由所述絕緣層40相互絕緣。Referring to FIGS. 1-2, a touch panel 100 according to a preferred embodiment of the present invention defines a touch area 101 and a non-touch area 103 surrounding the touch area 101. Referring to FIG. 3, the touch panel 100 includes a substrate 10 having a plurality of first touch electrodes 20 formed on one surface of the substrate 10, and a plurality of first touch electrodes 20 formed on the substrate 10 and covering the plurality of first touch electrodes 20. An insulating layer 40 and a plurality of second touch electrodes 30 formed on the insulating layer 40. The plurality of first touch electrodes 20 and the plurality of second touch electrodes 30 are insulated from each other by the insulating layer 40.
可以理解的，所述複數第一觸控電極20和所述複數第二觸控電極30的材質可為本領域常規使用的各種透光且導電的材料，如氧化銦錫、金屬網格、奈米銀線、碳奈米管等。It can be understood that the materials of the plurality of first touch electrodes 20 and the plurality of second touch electrodes 30 can be various light-transmitting and conductive materials conventionally used in the art, such as indium tin oxide, metal grid, nano Rice silver wire, carbon nano tube, etc.
圖1為觸控面板100具有第二觸控電極30所在層的俯視示意圖，圖2為觸控面板100具有第一觸控電極20所在層的俯視示意圖。如圖2所示，所述複數第一觸控電極20排布成沿第一方向（如圖2中D1方向）延伸的多行，每一行包括複數間隔設置的複數第一觸控電極20，每一行中每相鄰的兩個第一觸控電極20藉由一第一連接部201電性連接，使每一行的第一觸控電極20形成一個第一觸控電極串21，不同行的第一觸控電極20為相互電性絕緣的。所述第一接連部201與所述第一觸控電極20形成於基板10的同一表面，且可由同一導電材料層圖案化形成。如圖1所示，所述複數第二觸控電極30排布成沿第二方向（如圖1中D2方向）延伸的多列，每一列包括複數間隔設置的複數第二觸控電極30，每一列中每相鄰的兩個第二觸控電極30藉由一第二連接部301電性連接，使每一列的第二觸控電極30形成一個第二觸控電極串31，不同列的第二觸控電極30為相互電性絕緣的。所述第二連接部301與所述第二觸控電極30可由同一導電材料層圖案化形成。所述第二方向與第一方向交叉，本實施例中，第二方向與第一方向垂直交叉。本實施例中，所述第一觸控電極20為觸控驅動（Tx）電極，所述第二觸控電極30為觸控感應（Rx）電極。可以理解的，在其他實施例中，也可設置為第一觸控電極20為Rx電極，所述第二觸控電極30為Tx電極。FIG. 1 is a schematic top view of a layer where the touch panel 100 has a second touch electrode 30, and FIG. 2 is a schematic top view of a layer where the touch panel 100 has a first touch electrode 20. As shown in FIG. 2, the plurality of first touch electrodes 20 are arranged in a plurality of rows extending along a first direction (direction D1 in FIG. 2), and each line includes a plurality of first touch electrodes 20 arranged at a plurality of intervals. Each adjacent two first touch electrodes 20 in each row are electrically connected through a first connection portion 201, so that the first touch electrodes 20 in each row form a first touch electrode string 21, and The first touch electrodes 20 are electrically insulated from each other. The first connection portion 201 and the first touch electrode 20 are formed on the same surface of the substrate 10 and can be patterned and formed from the same conductive material layer. As shown in FIG. 1, the plurality of second touch electrodes 30 are arranged in a plurality of rows extending along the second direction (direction D2 in FIG. 1), and each column includes a plurality of second touch electrodes 30 arranged at intervals. Each adjacent two second touch electrodes 30 in each column are electrically connected through a second connection portion 301, so that the second touch electrodes 30 in each column form a second touch electrode string 31. The second touch electrodes 30 are electrically insulated from each other. The second connection portion 301 and the second touch electrode 30 may be formed by patterning the same conductive material layer. The second direction intersects the first direction. In this embodiment, the second direction intersects the first direction perpendicularly. In this embodiment, the first touch electrode 20 is a touch driving (Tx) electrode, and the second touch electrode 30 is a touch sensing (Rx) electrode. It can be understood that, in other embodiments, the first touch electrode 20 may be an Rx electrode, and the second touch electrode 30 may be a Tx electrode.
如圖1和圖2所示，所述觸控面板100還包括與所述第一觸控電極串21和所述第二觸控電極串31分別電性連接的多條走線。所述多條走線設置在所述非觸控區103。本實施例中，所述多條走線中與第一觸控電極串21連接的走線定義為第一走線51，與第二觸控電極串31連接的走線定義為第二走線52。所述非觸控區103還包括一個綁定區105。所述多條走線延伸至所述綁定區105與控制電路（如本實施例中的FPC60）電性連接。如圖2所示，每一條第一走線51一端連接有接觸墊53，其另一端連接有連接墊54，每一條第一走線51藉由接觸墊53連接一個第一觸控電極串21，連接墊54設置在綁定區105以藉由連接墊54連通所述FPC60。所述第一觸控電極串21設置在觸控區101。如圖1和圖2所示，所述多條走線（包括第一走線51和第二走線52）直接設置在基板10上且被絕緣層40覆蓋，其中絕緣層40覆蓋的區域為圖1和圖2最大的虛線框環繞的區域。如圖1所示，每一條第二走線52一端直接連接第二觸控電極串31，另一端連接設置在綁定區105的連接墊54。第二走線52貫穿所述絕緣層40得以電性連接第二觸控電極串31。本實施例中，第二走線52連接第二觸控電極串31的一端並未像第一走線51一樣設置接觸墊53。所述接觸墊53、連接墊54設置均直接設置在所述基板10上，且位於非觸控區103。另外，所述第一走線51、所述第二走線52、所述接觸墊53、和所述連接墊54的材質可為本領域常規使用的各種導電金屬或合金。As shown in FIG. 1 and FIG. 2, the touch panel 100 further includes a plurality of wires electrically connected to the first touch electrode string 21 and the second touch electrode string 31 respectively. The multiple traces are disposed in the non-touch area 103. In this embodiment, among the multiple traces, a trace connected to the first touch electrode string 21 is defined as a first trace 51, and a trace connected to the second touch electrode string 31 is defined as a second trace. 52. The non-touch area 103 further includes a binding area 105. The multiple traces extend to the binding area 105 and are electrically connected to a control circuit (such as the FPC60 in this embodiment). As shown in FIG. 2, one end of each first trace 51 is connected to a contact pad 53 and the other end is connected to a connection pad 54. Each first trace 51 is connected to a first touch electrode string 21 through the contact pad 53. The connection pad 54 is disposed in the binding area 105 to communicate with the FPC 60 through the connection pad 54. The first touch electrode string 21 is disposed in the touch area 101. As shown in FIG. 1 and FIG. 2, the plurality of traces (including the first trace 51 and the second trace 52) are directly disposed on the substrate 10 and covered by the insulating layer 40. The area covered by the insulating layer 40 is The area surrounded by the largest dashed box in Figures 1 and 2. As shown in FIG. 1, one end of each second trace 52 is directly connected to the second touch electrode string 31, and the other end is connected to a connection pad 54 disposed in the binding region 105. The second trace 52 penetrates the insulation layer 40 and is electrically connected to the second touch electrode string 31. In this embodiment, one end of the second trace 52 connected to the second touch electrode string 31 is not provided with a contact pad 53 like the first trace 51. The contact pads 53 and the connection pads 54 are disposed directly on the substrate 10 and are located in the non-touch area 103. In addition, the materials of the first wiring 51, the second wiring 52, the contact pad 53, and the connection pad 54 may be various conductive metals or alloys conventionally used in the art.
如圖1和圖2所示，本實施例中，每一個第一觸控電極20和每一個第二觸控電極30均呈菱形，位於最邊緣的第一觸控電極20和第二觸控電極30可非為菱形。如圖1所示，由於相鄰的兩個第二觸控電極串31之間存在間隙，導致從所述觸控面板100一側射入的光線穿過該第二觸控電極30所在的導電層後產生差異，進而影響整體的顯示效果；因此，本實施例還在所述絕緣層40上設置複數虛設電極70，所述複數虛設電極70設置在相鄰的兩個第二觸控電極串31之間的間隙。所述虛設電極70與所述第二觸控電極30為同層設置，即由同一導電材料層圖案化形成。如圖1所示，每一個虛設電極70呈菱形，所述複數虛設電極70相互之間不連通，而是相互絕緣間隔設置，且所述虛設電極70也不與任何的走線連接。本實施例中，所述複數虛設電極70可設置為與第一觸控電極20為一一對應的關係，及每一個虛設電極70在基板10上的投影與一個第一觸控電極20相重疊，如圖3所示。As shown in FIG. 1 and FIG. 2, in this embodiment, each of the first touch electrodes 20 and each of the second touch electrodes 30 are diamond-shaped, and the first touch electrodes 20 and the second touch electrodes located at the outermost edges are The electrode 30 may not be diamond-shaped. As shown in FIG. 1, because there is a gap between two adjacent second touch electrode strings 31, the light incident from one side of the touch panel 100 passes through the conductive area where the second touch electrode 30 is located. Differences occur after layering, thereby affecting the overall display effect; therefore, in this embodiment, a plurality of dummy electrodes 70 are also disposed on the insulating layer 40, and the plurality of dummy electrodes 70 are disposed on two adjacent second touch electrode strings. The gap between 31. The dummy electrode 70 and the second touch electrode 30 are disposed in the same layer, that is, formed by patterning the same conductive material layer. As shown in FIG. 1, each of the dummy electrodes 70 is in a rhombus shape. The plurality of dummy electrodes 70 are not connected to each other, but are arranged at an insulated distance from each other, and the dummy electrodes 70 are not connected to any traces. In this embodiment, the plurality of dummy electrodes 70 may be set in a one-to-one relationship with the first touch electrodes 20, and the projection of each of the dummy electrodes 70 on the substrate 10 overlaps with the first touch electrode 20. ,As shown in Figure 3.
藉由虛設電極70的設置，從所述觸控面板100一側射入的光線穿過該第二觸控電極30所在的導電層後不會產生明顯的差異，進而保證整體的顯示效果的均勻性。然而，設置虛設電極70後，虛設電極70會對第一觸控電極20產生一定的干擾，而為了避免此種干擾，需增大虛設電極70和第一觸控電極20之間的絕緣層40的厚度（增加虛設電極70和第一觸控電極20之間的距離）。然，絕緣層40厚度的增加會導致絕緣層40的外邊緣的坡度（與基板10表面的夾角）較大，使得第二觸控電極30在絕緣層40的外邊緣搭接時容易產生斷線等搭接不良。With the provision of the dummy electrode 70, the light incident from the side of the touch panel 100 will not cause a significant difference after passing through the conductive layer where the second touch electrode 30 is located, thereby ensuring the uniform display effect. Sex. However, after the dummy electrode 70 is provided, the dummy electrode 70 will cause certain interference to the first touch electrode 20, and in order to avoid such interference, the insulation layer 40 between the dummy electrode 70 and the first touch electrode 20 needs to be increased. (Increasing the distance between the dummy electrode 70 and the first touch electrode 20). However, an increase in the thickness of the insulating layer 40 will cause a larger slope (an included angle with the surface of the substrate 10) of the outer edge of the insulating layer 40, so that the second touch electrode 30 is prone to disconnection when the outer edge of the insulating layer 40 overlaps. Wait for poor connection.
為解決上述問題，如圖1所示，所述第二觸控電極30所在的導電層不僅設置在所述觸控區101，還進一步在非觸控區103延伸直至達到綁定區105，定義所述第二觸控電極30延伸至非觸控區103的部分為延伸走線33。每一個第二觸控電極串31連接有一個由其延伸且位於非觸控區103的延伸走線33。所述第二觸控電極串31與所述延伸走線33為同層設置，即由同一的導電材料層同時圖案化形成。所述延伸走線33在非觸控區103延伸並達到綁定區105，並覆蓋所述綁定區105中與第二走線52連接的連接墊54。由於第二走線52和延伸走線33均延伸與所述綁定區105中的連接墊54連接，為避免第二走線52和延伸走線33在非綁定區電性連接，如圖1和圖2所示，所述絕緣層40覆蓋了觸控區101和非觸控區103的部分，未覆蓋綁定區105，以使第二走線52和延伸走線33相互絕緣。To solve the above problem, as shown in FIG. 1, the conductive layer where the second touch electrode 30 is located is not only disposed in the touch area 101 but also further extended in the non-touch area 103 until it reaches the binding area 105. A portion of the second touch electrode 30 extending to the non-touch area 103 is an extension wiring 33. Each second touch electrode string 31 is connected to an extension line 33 extending from the second touch electrode string 31 and located in the non-touch area 103. The second touch electrode string 31 and the extension wiring 33 are disposed in the same layer, that is, formed by patterning the same conductive material layer at the same time. The extension wiring 33 extends in the non-touch area 103 and reaches the binding area 105, and covers the connection pad 54 connected to the second wiring 52 in the binding area 105. Because the second trace 52 and the extension trace 33 are both extended to be connected to the connection pad 54 in the binding region 105, in order to avoid the second trace 52 and the extension trace 33 being electrically connected in the non-binding region, as shown in the figure As shown in FIG. 1 and FIG. 2, the insulating layer 40 covers portions of the touch area 101 and the non-touch area 103 and does not cover the binding area 105 to insulate the second trace 52 and the extended trace 33 from each other.
如圖4所示綁定區105的剖面圖，所述基板10上設置有與所述第二走線52連接的連接墊54，所述連接墊54局部被絕緣層40覆蓋，所述延伸走線33沿絕緣層40的傾角爬坡直至覆蓋所述連接墊54未被絕緣層40覆蓋的區域。所述連接墊54上還設置有一異方性導電膜80，所述連接墊54藉由所述異方性導電膜80電性連接所述FPC60。具體的為，所述異方性導電膜80是位於所述延伸走線33遠離所述連接墊54的表面上，所述異方性導電膜80位於所述FPC60與所述所述延伸走線33之間。As shown in the cross-sectional view of the binding region 105 in FIG. 4, the substrate 10 is provided with a connection pad 54 connected to the second wiring 52, the connection pad 54 is partially covered by the insulating layer 40, and the extension The line 33 climbs along the inclination of the insulating layer 40 until it covers the area of the connection pad 54 that is not covered by the insulating layer 40. An anisotropic conductive film 80 is also provided on the connection pad 54, and the connection pad 54 is electrically connected to the FPC 60 through the anisotropic conductive film 80. Specifically, the anisotropic conductive film 80 is located on a surface of the extension wiring 33 away from the connection pad 54, and the anisotropic conductive film 80 is located on the FPC 60 and the extension wiring. Between 33.
本實施例中，絕緣層40的材質為透明的不導電材料，其厚度設置大於等於5微米。所述異方性導電膜80的厚度大於所述絕緣層40的厚度，所述異方性導電膜80中含有的導電粒子的直徑大於所述絕緣層40的厚度，例如絕緣層40的厚度為10微米，則異方性導電膜80中含有的導電粒子的直徑大於10微米。如此，當所述延伸走線33沿絕緣層40的傾角爬坡發生斷線等搭接不良時，所述FPC60的電信號可經由所述異方性導電膜80、延伸走線33、連接墊54、第二走線52，達到所述第二觸控電極串31。而如果所述延伸走線33沿絕緣層40的傾角爬坡搭接良好時，則所述FPC60的電信號可經由所述異方性導電膜80、延伸走線33，達到所述第二觸控電極串31。In this embodiment, the material of the insulating layer 40 is a transparent non-conductive material, and its thickness is set to be 5 μm or more. The thickness of the anisotropic conductive film 80 is greater than the thickness of the insulating layer 40. The diameter of the conductive particles contained in the anisotropic conductive film 80 is greater than the thickness of the insulating layer 40. For example, the thickness of the insulating layer 40 is 10 microns, the diameter of the conductive particles contained in the anisotropic conductive film 80 is greater than 10 microns. In this way, when the extension wiring 33 is broken along the inclination of the insulation layer 40, such as a disconnection, the electrical signal of the FPC 60 can pass through the anisotropic conductive film 80, the extension wiring 33, and the connection pad. 54. The second wiring 52 reaches the second touch electrode string 31. And if the extension wiring 33 is well overlapped along the inclination of the insulating layer 40, the electrical signal of the FPC 60 can pass through the anisotropic conductive film 80 and the extension wiring 33 to reach the second contact.控 杆 串 31。 Control electrode string 31.
本發明在習知技術的基礎上，藉由對第二觸控電極30進行延伸形成延伸走線33與綁定區105的金屬連接墊54進行連接，可保證第二觸控電極30與控制電路的電性連接，有效提高觸控感測效果。On the basis of the conventional technology, the present invention can ensure that the second touch electrode 30 and the control circuit are connected by extending the second touch electrode 30 to form an extension line 33 and a metal connection pad 54 of the binding region 105. The electrical connection effectively improves the touch sensing effect.
可以理解的，第一觸控電極20和每一個第二觸控電極30的形狀不限於菱形，還可以為本領域常規使用的各種形狀，例如矩形、長條性等等。 可以理解的，所述虛設電極70的形狀不限於菱形，還可以為本領域常規使用的各種形狀，只要能填充在相鄰觸控電極串之間的間隙即可。It can be understood that the shapes of the first touch electrodes 20 and each of the second touch electrodes 30 are not limited to rhombuses, and may be various shapes conventionally used in the art, such as rectangles, strips, and the like. It can be understood that the shape of the dummy electrode 70 is not limited to a rhombus, and may be various shapes conventionally used in the art, as long as it can fill a gap between adjacent touch electrode strings.
請參閱圖5所示的觸控顯示裝置200，所述觸控顯示裝置200包括顯示面板210以及設置在所述顯示面板210上的上述觸控面板100。所述觸控顯示裝置200可為行動電話、平板電腦、筆記型電腦等。所述顯示面板210可為液晶顯示面板、OLED顯示面板，微型LED顯示面板等，本實施例中，所述顯示面板210為液晶顯示面板。Please refer to the touch display device 200 shown in FIG. 5. The touch display device 200 includes a display panel 210 and the touch panel 100 provided on the display panel 210. The touch display device 200 may be a mobile phone, a tablet computer, a notebook computer, or the like. The display panel 210 may be a liquid crystal display panel, an OLED display panel, a micro LED display panel, etc. In this embodiment, the display panel 210 is a liquid crystal display panel.
以上實施例僅用以說明本發明的技術方案而非限制，圖示中出現的上、下、左及右方向僅為了方便理解，儘管參照較佳實施例對本發明進行了詳細說明，所屬技術領域的普通人員應當理解，可以對本發明的技術方案進行修改或等同替換，而不脫離本發明技術方案的精神和範圍。The above embodiments are only used to illustrate the technical solution of the present invention and are not limiting. The up, down, left, and right directions appearing in the illustration are for easy understanding. Although the present invention is described in detail with reference to the preferred embodiments, the technical field to which it belongs Those of ordinary skill in the art should understand that the technical solution of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.
100‧‧‧觸控面板100‧‧‧ touch panel
10‧‧‧基板10‧‧‧ substrate
101‧‧‧觸控區101‧‧‧touch area
103‧‧‧非觸控區103‧‧‧ Non-touch area
105‧‧‧綁定區105‧‧‧Binding zone
20‧‧‧第一觸控電極20‧‧‧First touch electrode
201‧‧‧第一連接部201‧‧‧First connecting section
30‧‧‧第二觸控電極30‧‧‧Second touch electrode
301‧‧‧第二連接部301‧‧‧Second connection section
40‧‧‧絕緣層40‧‧‧ Insulation
21‧‧‧第一觸控電極串21‧‧‧The first touch electrode string
31‧‧‧第二觸控電極串31‧‧‧Second touch electrode string
51‧‧‧第一走線51‧‧‧The first route
52‧‧‧第二走線52‧‧‧Second Route
53‧‧‧接觸墊53‧‧‧contact pad
54‧‧‧連接墊54‧‧‧Connecting pad
60‧‧‧FPC60‧‧‧FPC
70‧‧‧虛設電極70‧‧‧ dummy electrode
33‧‧‧延伸走線33‧‧‧Extended wiring
80‧‧‧異方性導電膜80‧‧‧Anisotropic conductive film
200‧‧‧觸控顯示裝置200‧‧‧Touch display device
210‧‧‧顯示面板210‧‧‧Display Panel
圖1是本發明較佳實施方式觸控面板的俯視示意圖。FIG. 1 is a schematic top view of a touch panel according to a preferred embodiment of the present invention.
圖2是本發明較佳實施方式的觸控面板去掉第二觸控電極的層後的平面示意圖。FIG. 2 is a schematic plan view of a touch panel according to a preferred embodiment of the present invention after the second touch electrode layer is removed.
圖3是沿圖1的剖面線III-III剖開的剖面示意圖。3 is a schematic cross-sectional view taken along a section line III-III of FIG. 1.
圖4是沿圖1的剖面線IV-IV剖開的剖面示意圖。4 is a schematic cross-sectional view taken along a section line IV-IV of FIG. 1.
圖5是本發明較佳實施方式觸控顯示裝置的剖面示意圖。FIG. 5 is a schematic cross-sectional view of a touch display device according to a preferred embodiment of the present invention.
Claims (9)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140457.0A CN108228002B (en) | 2018-02-11 | 2018-02-11 | Touch panel and touch display device using same |
| ??201810140457.0 | 2018-02-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI652607B true TWI652607B (en) | 2019-03-01 |
| TW201935201A TW201935201A (en) | 2019-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW107107306A TWI652607B (en) | 2018-02-11 | 2018-03-05 | Touch panel and touch display device using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108228002B (en) |
| TW (1) | TWI652607B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI707262B (en) * | 2019-06-24 | 2020-10-11 | 大陸商友達光電（昆山）有限公司 | Touch display panel |
| TWI711955B (en) * | 2019-03-05 | 2020-12-01 | 大陸商業成科技（成都）有限公司 | Touch panel |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108920008B (en) * | 2018-07-23 | 2021-10-15 | 意力(广州)电子科技有限公司 | Display device, touch panel, touch sensor and manufacturing method thereof |
| CN108776561A (en) * | 2018-09-14 | 2018-11-09 | 无锡市科虹标牌有限公司 | Circuit and manufacture craft in a kind of decoration panel transparent window |
| CN109343730A (en) * | 2018-12-14 | 2019-02-15 | 武汉华星光电半导体显示技术有限公司 | Touch device and touch-control driving method |
| CN110045871B (en) * | 2019-04-19 | 2022-06-21 | 业成科技（成都）有限公司 | Touch panel and touch display device using same |
| CN111090357B (en) * | 2019-11-25 | 2022-04-22 | 业成科技（成都）有限公司 | Touch module, preparation method thereof and electronic equipment |
| TWI722717B (en) * | 2019-12-13 | 2021-03-21 | 友達光電股份有限公司 | Touch panel |
| CN113515207B (en) * | 2020-04-10 | 2024-03-22 | 和鑫光电股份有限公司 | Touch panel and manufacturing method thereof |
| CN111766966A (en) * | 2020-05-08 | 2020-10-13 | 南昌欧菲显示科技有限公司 | Touch film, touch assembly and electronic equipment |
| CN112230795B (en) * | 2020-10-13 | 2024-04-16 | 京东方科技集团股份有限公司 | Touch module and display device |
| CN113625904B (en) * | 2021-08-09 | 2023-10-17 | 深圳市华星光电半导体显示技术有限公司 | Touch module and touch display device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102799295A (en) * | 2011-05-26 | 2012-11-28 | 胜华科技股份有限公司 | Touch device and touch display device |
| US8890824B2 (en) * | 2012-02-07 | 2014-11-18 | Atmel Corporation | Connecting conductive layers using in-mould lamination and decoration |
| CN103092424B (en) * | 2013-01-28 | 2016-01-06 | 北京京东方光电科技有限公司 | A kind of In-cell touch panel and display device |
| CN203376990U (en) * | 2013-07-31 | 2014-01-01 | 南昌欧菲光科技有限公司 | Transparent conductive film |
| CN103824616B (en) * | 2014-02-26 | 2017-01-11 | 南昌欧菲光科技有限公司 | Conducting film and manufacturing method thereof, touch component and touch display device |
| JP6404091B2 (en) * | 2014-11-13 | 2018-10-10 | 株式会社Ｖｔｓタッチセンサー | Touch sensor substrate |
| CN204515751U (en) * | 2015-04-20 | 2015-07-29 | 南昌欧菲光科技有限公司 | Contact panel |
| CN106020551A (en) * | 2016-06-02 | 2016-10-12 | 武汉华星光电技术有限公司 | Flexible touch screen and manufacturing method thereof |
-
2018
- 2018-02-11 CN CN201810140457.0A patent/CN108228002B/en active Active
- 2018-03-05 TW TW107107306A patent/TWI652607B/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI711955B (en) * | 2019-03-05 | 2020-12-01 | 大陸商業成科技（成都）有限公司 | Touch panel |
| TWI707262B (en) * | 2019-06-24 | 2020-10-11 | 大陸商友達光電（昆山）有限公司 | Touch display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201935201A (en) | 2019-09-01 |
| CN108228002B (en) | 2021-08-24 |
| CN108228002A (en) | 2018-06-29 |
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