TW201314535A - In-cell touch panel - Google Patents

In-cell touch panel Download PDF

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TW201314535A
TW201314535A TW100134934A TW100134934A TW201314535A TW 201314535 A TW201314535 A TW 201314535A TW 100134934 A TW100134934 A TW 100134934A TW 100134934 A TW100134934 A TW 100134934A TW 201314535 A TW201314535 A TW 201314535A
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substrate
touch panel
protrusion
conductive layer
layer
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TW100134934A
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Chinese (zh)
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TWI451315B (en
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Yi-Chung Juan
Hsuan-Chen Liu
Sung-Chun Lin
Wen-Chi Lin
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Hannstar Display Corp
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Priority to TW100134934A priority Critical patent/TWI451315B/en
Priority to CN201110333386.4A priority patent/CN103034377B/en
Publication of TW201314535A publication Critical patent/TW201314535A/en
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Abstract

An in-cell touch panel is provided. The in-cell touch panel having a touch sensing signal transfer area and a touch sensing area includes a capacitive sensing electrode disposed on the touch sensing area of a first substrate and an opposite second substrate. A conductive layer is disposed on the touch sensing signal transfer area of the second substrate. A protrusion is disposed between the first and the second substrates and at the touch sensing signal transfer area, wherein the protrusion is electrically connected with the capacitive sensing electrode and contacts with the conductive layer on the second substrate, such that a touch sensing signal from the capacitive sensing electrode is transferred to the second substrate through the protrusion.

Description

內嵌式觸控面板In-line touch panel

本發明係有關於一種觸控面板,特別有關於一種電容式內嵌觸控面板的訊號傳遞方式。The present invention relates to a touch panel, and more particularly to a signal transmission method of a capacitive in-cell touch panel.

目前的觸控面板可使用電阻式、電容式或其他方式,例如紅外線或表面聲波等,達到觸碰感應的效果,其中電容式觸控面板係利用監測觸碰處與電容式感應電極之間所產生的電容值來判定觸碰的位置,因為電容式觸控面板不需要施加壓力就能達到觸控效果,為未來觸控面板的發展主流。The current touch panel can use a resistive, capacitive or other means, such as infrared or surface acoustic waves, to achieve the effect of touch sensing, wherein the capacitive touch panel utilizes between the monitoring touch and the capacitive sensing electrode. The generated capacitance value determines the position of the touch, because the capacitive touch panel can achieve the touch effect without applying pressure, which is the mainstream of the future development of the touch panel.

目前的電容式觸控面板可分為兩種,一種為外掛式觸控面板,其係將電容式觸控面板外加於顯示面板外,但這種方式會造成觸控顯示裝置的整體厚度增加。另一種方式為將電容式觸控元件製作在彩色濾光片基板的背面(on cell),但是這種方式會導致先製作的電容式觸控元件在後續彩色濾光片基板的製程中受到刮傷損害。The current capacitive touch panel can be divided into two types. One is an external touch panel, which is a capacitive touch panel applied to the outside of the display panel, but this method causes an increase in the overall thickness of the touch display device. Another way is to make the capacitive touch element on the back of the color filter substrate, but this method will cause the first fabricated capacitive touch element to be scraped in the process of the subsequent color filter substrate. Injury damage.

因此,業界亟需一種電容式觸控面板,其可以克服上述問題,降低觸控顯示裝置的整體厚度,並且避免電容式觸控元件在製作顯示器裝置的後續製程中受到損害。Therefore, there is a need in the industry for a capacitive touch panel that overcomes the above problems, reduces the overall thickness of the touch display device, and prevents the capacitive touch element from being damaged in subsequent processes for making the display device.

依據本發明之一實施例,提供一種內嵌式觸控面板,其具有觸控訊號傳遞區及觸控感測區,此內嵌式觸控面板包括:第一基板,電容式感測電極設置於第一基板的觸控感測區上,第二基板與第一基板對向設置,導電層設置於第二基板的觸控訊號傳遞區上,突起物設置於第一基板與第二基板之間,且位於觸控訊號傳遞區上,其中突起物與電容式感測電極電性連接,並且與第二基板上的導電層接觸,使得電容式感測電極的觸控訊號經由突起物傳遞至第二基板。According to an embodiment of the present invention, an in-cell touch panel has a touch signal transmission area and a touch sensing area, and the in-cell touch panel includes: a first substrate, and a capacitive sensing electrode On the touch sensing area of the first substrate, the second substrate is disposed opposite to the first substrate, the conductive layer is disposed on the touch signal transmission area of the second substrate, and the protrusion is disposed on the first substrate and the second substrate And being located on the touch signal transmission area, wherein the protrusion is electrically connected to the capacitive sensing electrode and is in contact with the conductive layer on the second substrate, so that the touch signal of the capacitive sensing electrode is transmitted to the touch via the protrusion The second substrate.

為了讓本發明之上述目的、特徵、及優點能更明顯易懂,以下配合所附圖式,作詳細說明如下:In order to make the above objects, features, and advantages of the present invention more comprehensible, the following detailed description is made in conjunction with the accompanying drawings.

本發明之實施例係提供一種電容感應的內嵌式觸控面板,其係將電容式觸控感應電極設置在彩色濾光片基板的內側,與彩色濾光層位於彩色濾光片基板的同一側,藉此可解決傳統觸控面板將電容式觸控元件製作在彩色濾光片基板的背面(on cell)所造成的刮傷問題,避免電容式觸控感應電極受到損傷,同時相較於外掛式觸控面板,本發明實施例之內嵌式觸控面板可以降低觸控顯示裝置的整體厚度。Embodiments of the present invention provide a capacitive sensing in-cell touch panel in which a capacitive touch sensing electrode is disposed inside a color filter substrate, and the color filter layer is located on the color filter substrate. The side can be used to solve the scratch problem caused by the conventional touch panel manufacturing the capacitive touch element on the back of the color filter substrate, thereby avoiding damage to the capacitive touch sensing electrode, and at the same time The in-cell touch panel of the embodiment of the present invention can reduce the overall thickness of the touch display device.

但是在本發明實施例之內嵌式觸控面板中,需要將彩色濾光片基板側的電容式觸控感應電極的觸控訊號傳遞至薄膜電晶體基板側。一般傳統的方法為透過顯示面板週邊區的框膠(seal)材料中的導電粒子,將彩色濾光片基板側的訊號傳送至薄膜電晶體基板側。然而,由於導電粒子在框膠材料中的摻雜量只有0.4wt%,因此在某些區域內可能無導電粒子存在,造成觸控訊號的傳遞不良;或者傳遞觸控訊號的每一條信號線(signal trace)所接觸的導電粒子之數目會不同,造成觸控訊號的傳遞不均勻等問題。此外,傳統的方法利用框膠中的導電粒子進行觸控訊號的傳遞,將會使得原本傳送顯示面板之共用電極的電壓(Vcom)訊號可使用面積減少,造成顯示面板的Vcom訊號傳送不良或不均,進而衍生顯示畫面品質不佳的問題。However, in the in-cell touch panel of the embodiment of the invention, the touch signal of the capacitive touch sensing electrode on the side of the color filter substrate needs to be transmitted to the side of the thin film transistor substrate. In the conventional method, the signal on the side of the color filter substrate is transmitted to the side of the thin film transistor substrate through the conductive particles in the seal material in the peripheral region of the display panel. However, since the doping amount of the conductive particles in the sealant material is only 0.4 wt%, there may be no conductive particles in some regions, resulting in poor transmission of the touch signal; or each signal line transmitting the touch signal ( Signal trace) The number of conductive particles that are in contact with each other will be different, causing problems such as uneven transmission of touch signals. In addition, the conventional method utilizes the conductive particles in the sealant to transmit the touch signal, which will reduce the available area of the voltage (Vcom) signal of the common electrode of the original display panel, resulting in poor transmission or non-transmission of the Vcom signal of the display panel. Both of them further lead to the problem of poor display quality.

因此,在本發明實施例之內嵌式觸控面板中,利用設置在彩色濾光片基板與薄膜電晶體基板之間的突起物,將彩色濾光片基板側的電容式觸控感應電極的觸控訊號傳遞至薄膜電晶體基板側。Therefore, in the in-cell touch panel of the embodiment of the present invention, the capacitive touch sensing electrode on the color filter substrate side is used by using the protrusion disposed between the color filter substrate and the thin film transistor substrate. The touch signal is transmitted to the side of the thin film transistor substrate.

請參閱第1圖,其係顯示本發明一實施例之觸控面板的平面示意圖。觸控面板100具有觸控感測區100A及觸控訊號傳遞區100B,此外還有用於輸入顯示訊號的週邊電路區100C。另外,在觸控面板100的觸控感測區100A及觸控訊號傳遞區100B的外圍具有框膠134。Please refer to FIG. 1 , which is a plan view showing a touch panel according to an embodiment of the present invention. The touch panel 100 has a touch sensing area 100A and a touch signal transmitting area 100B, and a peripheral circuit area 100C for inputting a display signal. In addition, a sealant 134 is disposed on the periphery of the touch sensing area 100A and the touch signal transmitting area 100B of the touch panel 100.

在觸控面板100的上基板之觸控感測區100A內具有複數個電容式感應電極108,例如為菱形的銦錫氧化物(indium tin oxide;ITO)電極,這些電容式感應電極108分別以行及列的形式串連排列,每一行與每一列的電容式感應電極108所得到的觸控訊號可藉由觸控訊號傳遞區100B上的突起物114傳遞至下基板,並且觸控訊號可藉由下基板上的導電層傳送至軟性電路板(flexible print circuit;FPC)136,再經由軟性電路板136傳送至顯示裝置中的積體電路(IC)(未繪出)進行觸控訊號的處理。In the touch sensing area 100A of the upper substrate of the touch panel 100, there are a plurality of capacitive sensing electrodes 108, such as diamond-shaped indium tin oxide (ITO) electrodes, and the capacitive sensing electrodes 108 are respectively The rows and columns are arranged in series, and the touch signals obtained by the capacitive sensing electrodes 108 of each row and each row can be transmitted to the lower substrate through the protrusions 114 on the touch signal transmitting region 100B, and the touch signals can be The conductive layer on the lower substrate is transferred to a flexible printed circuit (FPC) 136, and then transmitted to the integrated circuit (IC) (not shown) in the display device via the flexible circuit board 136 for touch signals. deal with.

請參閱第2圖,其係顯示沿著第1圖的剖面線2-2’,本發明一實施例之觸控面板的剖面示意圖。觸控面板100包含第一基板102,例如為彩色濾光片(color filter substrate)基板,首先在第一基板102的內側形成電容式觸控感應電極結構S,其包含第一導電層104、第一絕緣層106、第二導電層108以及第二絕緣層110,其中第一導電層104可以是金屬層,其材料例如為金、銀、銅、鋁、鈦、鉬或鋁釹合金(AlNd)等金屬材料,第二導電層108例如為銦錫氧化物(ITO)層或其它材質之透明導電層,第一絕緣層106與第二絕緣層110的材料例如為壓克力樹脂、氮化矽、氧化矽或氮氧化矽等材料。第二導電層108為第1圖中所示之同一列(X方向)的菱形電容式感應電極,第一導電層104為連接同一列的菱形電容式感應電極108之架橋(bridge)結構,在第2圖中未顯示同一行(Y方向)的菱形電容式感應電極108。Referring to FIG. 2, there is shown a cross-sectional view of a touch panel according to an embodiment of the present invention along a section line 2-2' of FIG. The touch panel 100 includes a first substrate 102, such as a color filter substrate. First, a capacitive touch sensing electrode structure S is formed on the inner side of the first substrate 102, and includes a first conductive layer 104, An insulating layer 106, a second conductive layer 108, and a second insulating layer 110, wherein the first conductive layer 104 may be a metal layer, such as gold, silver, copper, aluminum, titanium, molybdenum or aluminum-bismuth alloy (AlNd). For the metal material, the second conductive layer 108 is, for example, an indium tin oxide (ITO) layer or a transparent conductive layer of other materials. The materials of the first insulating layer 106 and the second insulating layer 110 are, for example, acrylic resin or tantalum nitride. , bismuth oxide or bismuth oxynitride and other materials. The second conductive layer 108 is a diamond-shaped capacitive sensing electrode of the same column (X direction) shown in FIG. 1 , and the first conductive layer 104 is a bridge structure connecting the rhombic capacitive sensing electrodes 108 of the same column. The rhombic capacitive sensing electrode 108 of the same row (Y direction) is not shown in FIG.

接著,在第一基板102的電容式觸控感應電極結構S上方形成第三絕緣層112,第三絕緣層112的材料例如為壓克力樹脂、氮化矽、氧化矽或氮氧化矽等材料,然後在第三絕緣層112上形成彩色濾光層CF,其包含黑色矩陣層(black matrix;BM)116以及包括紅、綠、藍(R、G、B)三色的彩色濾光片(color filter:CF)118,彩色濾光層位於觸控面板100的觸控感測區100A內。Next, a third insulating layer 112 is formed over the capacitive touch sensing electrode structure S of the first substrate 102. The material of the third insulating layer 112 is, for example, an acrylic resin, tantalum nitride, hafnium oxide or bismuth oxynitride. Then, a color filter layer CF is formed on the third insulating layer 112, which includes a black matrix (BM) 116 and color filters including three colors of red, green, and blue (R, G, B) ( The color filter: CF) 118 is located in the touch sensing area 100A of the touch panel 100.

依據本發明之一實施例,在第一基板102的觸控訊號傳遞區100B內形成突起物114,其包含感光型間隔物(photo spacer)115,以及覆蓋在感光型間隔物115上的第一透明導電層120,例如為銦錫氧化物(ITO)層,其中感光型間隔物115係利用光阻塗佈與微影製程直接形成於第二導電層108上,而第一透明導電層120則覆蓋感光型間隔物115並延伸至第二導電層108上,因此突起物114與第一基板102上的電容式觸控感應電極結構S產生電性連接。According to an embodiment of the present invention, a protrusion 114 is formed in the touch signal transmission region 100B of the first substrate 102, and includes a photo spacer 115 and a first cover on the photosensitive spacer 115. The transparent conductive layer 120 is, for example, an indium tin oxide (ITO) layer, wherein the photosensitive spacer 115 is directly formed on the second conductive layer 108 by photoresist coating and lithography, and the first transparent conductive layer 120 is The photosensitive spacer 115 is covered and extended to the second conductive layer 108, so that the protrusion 114 is electrically connected to the capacitive touch sensing electrode structure S on the first substrate 102.

接著,提供第二基板130與第一基板102對向設置,第二基板130例如為薄膜電晶體陣列基板(thin-film transistor(TFT) array substrate),具有複數個薄膜電晶體(未繪出)形成於其上。在第二基板130上形成導電層132,其材料例如為金、銀、銅、鋁、鈦、鉬或鋁釹合金(AlNd)等金屬材料,並且突起物114與第二基板130上的導電層132接觸,使得第一基板102上的電容式觸控感應電極結構S所產生的觸控訊號可經由突起物114傳遞至第二基板130側。Next, the second substrate 130 is disposed opposite to the first substrate 102. The second substrate 130 is, for example, a thin-film transistor (TFT) array substrate, and has a plurality of thin film transistors (not shown). Formed on it. A conductive layer 132 is formed on the second substrate 130, and the material thereof is, for example, a metal material such as gold, silver, copper, aluminum, titanium, molybdenum or aluminum-niobium alloy (AlNd), and the conductive layer on the protrusion 114 and the second substrate 130 The touch is generated so that the touch signal generated by the capacitive touch sensing electrode structure S on the first substrate 102 can be transmitted to the second substrate 130 side via the protrusion 114.

如第2圖所示,第二基板130上的導電層132與軟性電路板(FPC)136電性連接,因此電容式觸控感應電極結構S所產生的觸控訊號可經由突起物114以及導電層132傳送至軟性電路板136,再經由軟性電路板136傳送至顯示裝置中的積體電路(IC)(未繪出)進行觸控訊號的處理,並且設置於第二基板130上的薄膜電晶體與導電層132電性連接,以讀取電容式觸控感應電極結構S所產生的觸控訊號。As shown in FIG. 2, the conductive layer 132 on the second substrate 130 is electrically connected to the flexible circuit board (FPC) 136. Therefore, the touch signal generated by the capacitive touch sensing electrode structure S can be transmitted through the protrusion 114 and the conductive The layer 132 is transferred to the flexible circuit board 136, and then transmitted to the integrated circuit (IC) (not shown) in the display device via the flexible circuit board 136 for the processing of the touch signal, and the thin film electricity disposed on the second substrate 130. The crystal is electrically connected to the conductive layer 132 to read the touch signal generated by the capacitive touch sensing electrode structure S.

接著,在彩色濾光層CF上形成第二透明導電層122,例如為銦錫氧化物(ITO)層,第二透明導電層122與覆蓋在感光型間隔物115表面的第一透明導電層120可藉由全面性的沈積製程同時在第一基板102之上形成,並經由圖案化製程將第一透明導電層120與第二透明導電層122互相隔開彼此電性絕緣,其中第一透明導電層120用於傳遞電容式觸控感測電極結構S的觸控訊號,而第二透明導電層122則作為顯示裝置的共用電極(common electrode)。Next, a second transparent conductive layer 122, such as an indium tin oxide (ITO) layer, and a second transparent conductive layer 122 and a first transparent conductive layer 120 covering the surface of the photosensitive spacer 115 are formed on the color filter layer CF. The first transparent conductive layer 120 and the second transparent conductive layer 122 are electrically insulated from each other by a patterning process, and the first transparent conductive layer is electrically insulated from each other by a patterning process. The layer 120 is used to transmit the touch signal of the capacitive touch sensing electrode structure S, and the second transparent conductive layer 122 serves as a common electrode of the display device.

依據本發明之一實施例,在第一基板102與第二基板130之間可夾設液晶層128作為顯示元件,為了使液晶層128內的液晶分子產生規則排列,在第一基板102與第二基板130之上需分別形成第一配向層124與第二配向層126夾設液晶層128,第一配向層124與第二配向層126通常由聚亞醯胺(polyimide;PI)製成。一般而言,第一配向層124與第二配向層126的厚度會增加突出物114與第二基板130上的導電層132之接觸阻抗,導致觸控訊號的傳遞效能降低。因此,在本發明之實施例中,觸控面板100的觸控訊號傳遞區100B之設置避開第一配向層124與第二配向層126的位置。According to an embodiment of the present invention, a liquid crystal layer 128 may be interposed between the first substrate 102 and the second substrate 130 as a display element. In order to cause regular alignment of liquid crystal molecules in the liquid crystal layer 128, the first substrate 102 and the first substrate A liquid crystal layer 128 is interposed between the first alignment layer 124 and the second alignment layer 126, and the first alignment layer 124 and the second alignment layer 126 are usually made of polyimide (PI). In general, the thickness of the first alignment layer 124 and the second alignment layer 126 increases the contact resistance between the protrusion 114 and the conductive layer 132 on the second substrate 130, resulting in a decrease in the transmission performance of the touch signal. Therefore, in the embodiment of the present invention, the touch signal transmission area 100B of the touch panel 100 is disposed away from the positions of the first alignment layer 124 and the second alignment layer 126.

依據本發明之一實施例,突起物114中的感光型間隔物115是經由光阻塗佈及微影製程形成,因此,突起物114與導電層132的接觸面積可經由感光型間隔物115的微影製程而固定,藉此可使得電容式感應電極的每一條訊號線經由突起物114與導電層132產生電性接觸的阻值固定,提升觸控面板的感測精準度。According to an embodiment of the present invention, the photosensitive spacer 115 in the protrusion 114 is formed through a photoresist coating and a lithography process. Therefore, the contact area of the protrusion 114 and the conductive layer 132 can be via the photosensitive spacer 115. The lithography process is fixed, so that each signal line of the capacitive sensing electrode can be fixed by the resistance of the electrical contact between the protrusion 114 and the conductive layer 132, thereby improving the sensing accuracy of the touch panel.

依據本發明之另一實施例,突起物114可直接由導電材料製成,例如可經由沈積金屬層,並利用微影與蝕刻製程形成。在此實施例中,突起物114與導電層132的接觸面積也可經由微影製程而固定。In accordance with another embodiment of the present invention, the protrusions 114 can be formed directly from a conductive material, such as via a deposited metal layer, and formed using a lithography and etching process. In this embodiment, the contact area of the protrusions 114 and the conductive layer 132 can also be fixed via a lithography process.

在其他實施例中,突起物114可以由具有導電性的有機或無機材料製成,例如為摻雜導電粒子的有機或無機材料,導電粒子例如為金、銀或碳黑粒子。In other embodiments, the protrusions 114 may be made of an organic or inorganic material having electrical conductivity, such as an organic or inorganic material doped with conductive particles, such as gold, silver, or carbon black particles.

在本發明之實施例中,當突起物114本身具有導電性時,在突起物114表面可以不需要第一透明導電層120。In the embodiment of the present invention, when the protrusions 114 themselves have electrical conductivity, the first transparent conductive layer 120 may not be required on the surface of the protrusions 114.

依據本發明之另一實施例,突起物114可以在第二基板130的導電層132上形成,並且與第一基板102的第二導電層108電性連接。According to another embodiment of the present invention, the protrusions 114 may be formed on the conductive layer 132 of the second substrate 130 and electrically connected to the second conductive layer 108 of the first substrate 102.

由於本發明實施例中的突起物114可以將第一基板102側的電性訊號傳送至第二基板130側,因此,依據本發明之一實施例,可額外形成其他的突起物(未繪出)與第一基板102上的共用電極122產生電性連接,將共用電極122的電壓(Vcom)訊號傳送至第二基板130側,藉此可使得框膠材料134中不需摻雜導電粒子,進而降低面板的製作成本,其中突起物114與用以傳遞共用電極122所需電壓之突起物彼此無電性接觸。Since the protrusions 114 in the embodiment of the present invention can transmit the electrical signals on the side of the first substrate 102 to the side of the second substrate 130, other protrusions can be additionally formed according to an embodiment of the present invention (not shown). The electrical connection is made to the common electrode 122 on the first substrate 102, and the voltage (Vcom) signal of the common electrode 122 is transmitted to the second substrate 130 side, so that the conductive material is not doped in the sealant material 134. Further, the manufacturing cost of the panel is reduced, wherein the protrusions 114 and the protrusions for transmitting the voltage required for the common electrode 122 are in non-electrical contact with each other.

此外,依據本發明之一實施例,突起物114的製作方式為先製作感光型間隔物115,再形成第一透明導電層120,因此,本發明一實施例的製程可以與現有的液晶顯示面板之製程結合,於形成液晶層128內的間隔物(未繪出)時,同時形成突起物114的感光型間隔物115,並且在形成液晶顯示面板的共用電極122時,同時形成突起物114的第一透明導電層120,並且在此實施例中,突起物的製程順序與內嵌式電阻式感應觸控面板的按壓感測結構之製程順序相同,因此,在本發明之一實施例中,可以將電容式與電阻式觸控面板的製程結合,形成電容與電阻混合型的觸控面板。In addition, according to an embodiment of the present invention, the protrusion 114 is formed by first forming the photosensitive spacer 115 and then forming the first transparent conductive layer 120. Therefore, the process of an embodiment of the present invention can be combined with the existing liquid crystal display panel. The process is combined to form the spacers 115 of the protrusions 114 at the same time when the spacers (not shown) in the liquid crystal layer 128 are formed, and the protrusions 114 are simultaneously formed when the common electrodes 122 of the liquid crystal display panel are formed. The first transparent conductive layer 120, and in this embodiment, the process sequence of the protrusions is the same as the process sequence of the pressure sensing structure of the in-line resistive touch panel, and thus, in an embodiment of the present invention, Capacitive and resistive touch panel processes can be combined to form a capacitive and resistive hybrid touch panel.

綜上所述,本發明實施例之內嵌式觸控面板係將電容式觸控感應電極與彩色濾光層設置在彩色濾光片基板的同一側,相較於外掛式觸控面板,本發明之實施例可減少觸控顯示裝置的整體厚度。此外,本發明之實施例還可以避免目前觸控面板在彩色濾光片基板上進行雙面製程所造成的刮傷問題,藉此提高觸控面板的製造良率。In summary, the in-cell touch panel of the embodiment of the present invention has a capacitive touch sensing electrode and a color filter layer disposed on the same side of the color filter substrate, compared to the external touch panel. Embodiments of the invention can reduce the overall thickness of the touch display device. In addition, the embodiment of the present invention can also avoid the scratch problem caused by the current double-sided process of the touch panel on the color filter substrate, thereby improving the manufacturing yield of the touch panel.

同時,本發明實施例之內嵌式觸控面板係利用突起物與第一基板上的電容式觸控感應電極以及第二基板上的導電層產生電性連接,進而將第一基板側的觸控訊號傳遞至第二基板側,藉此可避免傳統利用框膠中的導電粒子進行訊號傳遞所造成的訊號不均問題。In the meantime, the in-cell touch panel of the embodiment of the present invention utilizes the protrusions to electrically connect the capacitive touch sensing electrodes on the first substrate and the conductive layer on the second substrate, thereby further touching the first substrate side. The control signal is transmitted to the second substrate side, thereby avoiding the problem of signal unevenness caused by the conventional signal transmission by the conductive particles in the sealant.

此外,依據本發明之一實施例,原本顯示裝置的共用電極之電壓(Vcom)訊號的傳遞區域之面積不會受到觸控訊號傳遞區域的影響,因此本發明實施例之觸控顯示面板可以改善傳統觸控顯示面板的Vcom訊號不均而衍生的顯示畫面品質不佳的問題。In addition, according to an embodiment of the present invention, the area of the transmission area of the voltage (Vcom) signal of the common electrode of the display device is not affected by the touch signal transmission area, so the touch display panel of the embodiment of the present invention can be improved. The problem that the quality of the display screen derived from the Vcom signal of the conventional touch display panel is not good.

雖然本發明已揭露較佳實施例如上,然其並非用以限定本發明,任何熟悉此項技藝者,在不脫離本發明之精神和範圍內,當可做些許更動與潤飾,因此本發明之保護範圍當視後附之申請專利範圍所界定為準。Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application attached.

100...觸控面板100. . . Touch panel

100A...觸控感測區100A. . . Touch sensing area

100B...觸控訊號傳遞區100B. . . Touch signal transmission area

100C...週邊電路區100C. . . Peripheral circuit area

102...第一基板102. . . First substrate

104...第一導電層104. . . First conductive layer

106、110、112...絕緣層106, 110, 112. . . Insulation

108...第二導電層108. . . Second conductive layer

114...突起物114. . . Protrusion

115...感光型間隔物115. . . Photosensitive spacer

116...黑色矩陣層116. . . Black matrix layer

118...彩色濾光片118. . . Color filter

120...第一透明導電層120. . . First transparent conductive layer

122...第二透明導電層(共用電極)122. . . Second transparent conductive layer (common electrode)

124、126...配向層124, 126. . . Alignment layer

128...液晶層128. . . Liquid crystal layer

130...第二基板130. . . Second substrate

132...導電層132. . . Conductive layer

134...框膠134. . . Frame glue

136...軟性電路板(FPC)136. . . Flexible circuit board (FPC)

S...電容式觸控感應電極結構S. . . Capacitive touch sensing electrode structure

CF...彩色濾光層CF. . . Color filter layer

第1圖係顯示依據本發明一實施例之觸控面板的平面示意圖。1 is a schematic plan view showing a touch panel according to an embodiment of the invention.

第2圖係顯示沿著第1圖的剖面線2-2’,本發明一實施例之觸控面板的剖面示意圖。Fig. 2 is a cross-sectional view showing a touch panel according to an embodiment of the present invention, taken along line 2-2' of Fig. 1.

100...觸控面板100. . . Touch panel

100A...觸控感測區100A. . . Touch sensing area

100B...觸控訊號傳遞區100B. . . Touch signal transmission area

102...第一基板102. . . First substrate

104...第一導電層104. . . First conductive layer

106、110、112...絕緣層106, 110, 112. . . Insulation

108...第二導電層108. . . Second conductive layer

114...突起物114. . . Protrusion

115...感光型間隔物115. . . Photosensitive spacer

116...黑色矩陣層116. . . Black matrix layer

118...彩色濾光片118. . . Color filter

120...第一透明導電層120. . . First transparent conductive layer

122...第二透明導電層(共用電極)122. . . Second transparent conductive layer (common electrode)

124、126...配向層124, 126. . . Alignment layer

128...液晶層128. . . Liquid crystal layer

130...第二基板130. . . Second substrate

132...導電層132. . . Conductive layer

134...框膠134. . . Frame glue

136...軟性電路板(FPC)136. . . Flexible circuit board (FPC)

S...電容式觸控感應電極結構S. . . Capacitive touch sensing electrode structure

CF...彩色濾光層CF. . . Color filter layer

Claims (13)

一種內嵌式觸控面板,具有一觸控感測區及一觸控訊號傳遞區,包括:一第一基板;一電容式觸控感測電極,設置於該第一基板的該觸控感測區上;一第二基板,與該第一基板對向設置;一導電層,設置於該第二基板的該觸控訊號傳遞區上;以及一突起物,設置於該第一基板與該第二基板之間,且位於該觸控訊號傳遞區上,其中該突起物與該電容式觸控感測電極電性連接,並且與該第二基板上的該導電層接觸,使得該電容式觸控感測電極的一觸控訊號經由該突起物傳遞至該第二基板。An in-cell touch panel having a touch sensing area and a touch signal transmission area includes: a first substrate; a capacitive touch sensing electrode; the touch feeling disposed on the first substrate a second substrate disposed opposite the first substrate; a conductive layer disposed on the touch signal transmission area of the second substrate; and a protrusion disposed on the first substrate and the Between the second substrate and the touch signal transmission area, wherein the protrusion is electrically connected to the capacitive touch sensing electrode and is in contact with the conductive layer on the second substrate, so that the capacitive type A touch signal of the touch sensing electrode is transmitted to the second substrate via the protrusion. 如申請專利範圍第1項所述之內嵌式觸控面板,更包括一彩色濾光層設置於該電容式觸控感測電極之上,面對該第二基板。The in-cell touch panel of claim 1, further comprising a color filter layer disposed on the capacitive touch sensing electrode facing the second substrate. 如申請專利範圍第2項所述之內嵌式觸控面板,其中該突起物包括一感光型間隔物,以及一第一透明導電層覆蓋於該感光型間隔物上,且其中該第一透明導電層與該電容式觸控感測電極以及該第二基板上的該導電層電性連接。The in-cell touch panel of claim 2, wherein the protrusion comprises a photosensitive spacer, and a first transparent conductive layer covers the photosensitive spacer, and wherein the first transparent The conductive layer is electrically connected to the capacitive touch sensing electrode and the conductive layer on the second substrate. 如申請專利範圍第3項所述之內嵌式觸控面板,更包括一第二透明導電層覆蓋於該彩色濾光層上,其中該第二透明導電層與該第一透明導電層經由一圖案化製程而互相隔絕。The in-cell touch panel of claim 3, further comprising a second transparent conductive layer overlying the color filter layer, wherein the second transparent conductive layer and the first transparent conductive layer are The process is patterned and isolated from each other. 如申請專利範圍第4項所述之內嵌式觸控面板,其中該第一透明導電層傳遞該電容式觸控感測電極的該觸控訊號,且該第二透明導電層為一共用電極。The in-cell touch panel of claim 4, wherein the first transparent conductive layer transmits the touch signal of the capacitive touch sensing electrode, and the second transparent conductive layer is a common electrode . 如申請專利範圍第5項所述之內嵌式觸控面板,更包含一另一突起物設置於該第一基板與該第二基板間,用以提供該第二透明導電層一共用電壓,且該突起物與該另一突起物彼此無電性連接。The in-cell touch panel of claim 5, further comprising a further protrusion disposed between the first substrate and the second substrate for providing a common voltage of the second transparent conductive layer, And the protrusion and the other protrusion are not electrically connected to each other. 如申請專利範圍第1項所述之內嵌式觸控面板,其中該突起物包括一導電性突起物。The in-cell touch panel of claim 1, wherein the protrusion comprises a conductive protrusion. 如申請專利範圍第7項所述之內嵌式觸控面板,其中該導電突起物的材料包括金屬、摻雜導電粒子的有機材料或摻雜導電粒子的無機材料。The in-cell touch panel of claim 7, wherein the material of the conductive protrusion comprises a metal, an organic material doped with conductive particles or an inorganic material doped with conductive particles. 如申請專利範圍第1項所述之內嵌式觸控面板,更包括一框膠設置於該第一基板與該第二基板之間,且其中該封膠內無導電粒子摻雜。The in-cell touch panel of claim 1, further comprising a sealant disposed between the first substrate and the second substrate, wherein no conductive particles are doped in the sealant. 如申請專利範圍第1項所述之內嵌式觸控面板,更包括:一第一配向層,設置於該第一基板之上;一第二配向層,設置於該第二基板之上,面對該第一配向層;以及一液晶層,夾設於該第一配向層與該第二配向層之間,其中該第一配向層與該第二配向層的位置與該觸控訊號傳遞區隔開。The in-cell touch panel of claim 1, further comprising: a first alignment layer disposed on the first substrate; a second alignment layer disposed on the second substrate, Facing the first alignment layer; and a liquid crystal layer interposed between the first alignment layer and the second alignment layer, wherein the position of the first alignment layer and the second alignment layer and the touch signal are transmitted Separated by zones. 如申請專利範圍第10項所述之內嵌式觸控面板,其中該液晶層內包括複數個間隔物,且該突起物包括一感光型間隔物,其中該些間隔物與該突起物之該感光型間隔物同時形成。The in-cell touch panel of claim 10, wherein the liquid crystal layer includes a plurality of spacers, and the protrusions comprise a photosensitive spacer, wherein the spacers and the protrusions are Photosensitive spacers are formed simultaneously. 如申請專利範圍第1項所述之內嵌式觸控面板,其中該突起物形成於該第一基板或該第二基板上。The in-cell touch panel of claim 1, wherein the protrusion is formed on the first substrate or the second substrate. 如申請專利範圍第1項所述之內嵌式觸控面板,其中該電容式觸控感測電極具有複數條信號線,且每一條信號線經由該突起物與該第二基板上的該導電層的接觸面積相同。The in-cell touch panel of claim 1, wherein the capacitive touch sensing electrode has a plurality of signal lines, and each of the signal lines passes the protrusion and the conductive on the second substrate The contact areas of the layers are the same.
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