TWI432833B - Touch device having a shielding layer - Google Patents

Touch device having a shielding layer Download PDF

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TWI432833B
TWI432833B TW100102679A TW100102679A TWI432833B TW I432833 B TWI432833 B TW I432833B TW 100102679 A TW100102679 A TW 100102679A TW 100102679 A TW100102679 A TW 100102679A TW I432833 B TWI432833 B TW I432833B
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touch
shielding layer
substrate
touch device
layer
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TW100102679A
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TW201232098A (en
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Ming Shian Lee
Jen Huang Lee
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Htc Corp
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Description

具有屏蔽層之觸控裝置Touch device with shielding layer

本發明係相關於一種觸控裝置,尤指一種具有屏蔽層之觸控裝置,以改善顯示模組對觸控模組所產生之雜訊。The present invention relates to a touch device, and more particularly to a touch device having a shielding layer for improving noise generated by a display module to a touch module.

觸控面板中的觸控原理主要分為:電阻式、電容式、音波式以及紅外線式,其中又以電阻式與電容式較為工業界上所利用。電阻式觸控面板係由兩導電片所構成,在兩導電片的中間分佈有若干間隔器(spacer),使該兩導電片不受觸壓時彼此為不導通之狀態,當上方具有撓性之導電片受觸壓而排擠開受壓點下方的間隔器形成上下導電片導通時,便可藉由量測該導通迴路中的電阻與施加偏壓的關係而得到受壓點之座標。相較於需要偏壓之電阻式觸控板,電容式觸控面板的動作原理係來自於手指或導體觸碰觸控板時所延伸出之電容變化,當導體或手指接觸絕緣層表面時,下方分佈電容感測墊便可依此量測出手指/導體接觸時所產生電容的差異,以此計算出接觸點之座標。The touch principle in the touch panel is mainly divided into: resistive, capacitive, sonic, and infrared, and the resistive and capacitive types are utilized in the industrial world. The resistive touch panel is composed of two conductive sheets, and a plurality of spacers are distributed in the middle of the two conductive sheets so that the two conductive sheets are not electrically connected to each other when pressed, and the upper portion is flexible. When the conductive sheet is pressed and squeezed to open the spacer under the pressure receiving point to form the upper and lower conductive sheets, the coordinates of the pressure point can be obtained by measuring the relationship between the resistance in the conduction loop and the applied bias voltage. Compared with the resistive touch panel that needs to be biased, the operation principle of the capacitive touch panel is derived from the change of capacitance extended when the finger or the conductor touches the touch panel. When the conductor or the finger touches the surface of the insulating layer, The capacitance sensor pad distributed below can measure the difference in capacitance generated when the finger/conductor contacts, and calculate the coordinates of the contact point.

請參考第1圖,第1圖為先前技術之電容式觸控裝置之示意圖。觸控裝置100包含觸控模組110以及顯示模組120。顯示模組120包含第一偏光片121、薄膜電晶體基板122、液晶層123、彩色濾光片基板124以及第二偏光片125。液晶層123設置於薄膜電晶體基板122與彩色濾光片基板124之間,第一偏光片121貼附於薄膜電晶體基板122上,第二偏光片125貼附於彩色濾光片基板124上。觸控模組110藉由膠合層131貼附於顯示模組120上。觸控模組110包含上蓋基板111、複數個感測墊(sensor pattern)112、保護層113、感測基板(sensor glass)114以及屏蔽層115。感測基板114為玻璃材質,可以利用氧化銦錫(Indium Tin Oxide,ITO)濺鍍(sputtering)於感測基板114之下方以形成屏蔽層115,由於感測基板114之厚度約為1mm,所以屏蔽層115與感測墊112之間不會產生過大的耦合電容而影響觸控感應。複數個感測墊112用來感測觸控的位置,當感測墊112之間因觸控而產生感應電容時,就可以藉由電容值的變化判斷觸控的位置。複數個感測墊112形成於感測基板114上,複數個感測墊112上具有保護層113,上蓋基板111設置於保護層113上方,使用者於上蓋基板111之上側進行觸控操作,所以上蓋基板111為耐磨及防刮之材質。屏蔽層115設置於感測基板114之下側,複數個感測墊112之接地電壓電性連接於屏蔽層115,屏蔽層115可阻隔顯示模組120對觸控模組110所產生的雜訊。Please refer to FIG. 1 , which is a schematic diagram of a prior art capacitive touch device. The touch device 100 includes a touch module 110 and a display module 120. The display module 120 includes a first polarizer 121, a thin film transistor substrate 122, a liquid crystal layer 123, a color filter substrate 124, and a second polarizer 125. The liquid crystal layer 123 is disposed between the thin film transistor substrate 122 and the color filter substrate 124. The first polarizer 121 is attached to the thin film transistor substrate 122, and the second polarizer 125 is attached to the color filter substrate 124. . The touch module 110 is attached to the display module 120 by the glue layer 131. The touch module 110 includes a top cover substrate 111 , a plurality of sensor patterns 112 , a protective layer 113 , a sensor glass 114 , and a shielding layer 115 . The sensing substrate 114 is made of glass and can be sputtered under the sensing substrate 114 by using Indium Tin Oxide (ITO) to form the shielding layer 115. Since the thickness of the sensing substrate 114 is about 1 mm, the thickness of the sensing substrate 114 is about 1 mm. There is no excessive coupling capacitance between the shielding layer 115 and the sensing pad 112 to affect the touch sensing. A plurality of sensing pads 112 are used to sense the position of the touch. When the sensing capacitance is generated by the touch between the sensing pads 112, the position of the touch can be determined by the change of the capacitance value. A plurality of sensing pads 112 are formed on the sensing substrate 114. The plurality of sensing pads 112 have a protective layer 113. The upper cover substrate 111 is disposed above the protective layer 113. The user performs a touch operation on the upper side of the upper cover substrate 111. The upper cover substrate 111 is made of a wear-resistant and scratch-resistant material. The shielding layer 115 is disposed on the lower side of the sensing substrate 114, and the grounding voltage of the plurality of sensing pads 112 is electrically connected to the shielding layer 115. The shielding layer 115 blocks the noise generated by the display module 120 to the touch module 110. .

上述觸控模組110為雙層基板之結構,也就是觸控模組110包含上蓋基板111以及感測基板114,複數個感測墊112形成於感測基板114上。然而,為了要減少觸控裝置的厚度,很多觸控裝置使用單層基板結構之觸控模組,也就是複數個感測墊直接形成於上蓋基板之下側,感測墊上覆蓋保護層。由於保護層之厚度大約為數個微米(10-6 m),若將屏蔽層設置於保護層上,屏蔽層與感測墊之間會產生過大的耦合電容而影響觸控感應。然而若是沒有設置屏蔽層,顯示模組所產生的雜訊將嚴重影響觸控模組的感測。The touch module 110 is configured as a two-layer substrate, that is, the touch module 110 includes a cover substrate 111 and a sensing substrate 114 , and a plurality of sensing pads 112 are formed on the sensing substrate 114 . However, in order to reduce the thickness of the touch device, many touch devices use a touch module of a single-layer substrate structure, that is, a plurality of sensing pads are directly formed on the lower side of the upper cover substrate, and the sensing pad is covered with a protective layer. Since the thickness of the protective layer is about several micrometers (10 -6 m), if the shielding layer is disposed on the protective layer, an excessive coupling capacitance is generated between the shielding layer and the sensing pad to affect the touch sensing. However, if the shielding layer is not provided, the noise generated by the display module will seriously affect the sensing of the touch module.

因此,本發明係提供一種具有屏蔽層之觸控裝置,以解決上述之問題。Therefore, the present invention provides a touch device having a shielding layer to solve the above problems.

本發明係提供一種觸控裝置,包含一顯示模組以及一觸控模組。該顯示模組包含一薄膜電晶體基板、一彩色濾光片基板、一液晶層、一第一偏光片、一屏蔽層以及一第二偏光片。該液晶層設置於該薄膜電晶體基板與該彩色濾光片基板之間。該第一偏光片貼附於該薄膜電晶體基板。該屏蔽層設置於該彩色濾光片基板上。該第二偏光片貼附於該屏蔽層上。該觸控模組包含一上蓋基板、複數個感測墊以及一保護層。該複數個感測墊形成於該上蓋基板之下側,且該複數個感測墊電性連接於該屏蔽層。該保護層形成於該複數個感測墊上,且該保護層之厚度約為數個微米(10-6 m),該保護層之下側藉由一膠合層貼附於該顯示模組上。The present invention provides a touch device including a display module and a touch module. The display module comprises a thin film transistor substrate, a color filter substrate, a liquid crystal layer, a first polarizer, a shielding layer and a second polarizer. The liquid crystal layer is disposed between the thin film transistor substrate and the color filter substrate. The first polarizer is attached to the thin film transistor substrate. The shielding layer is disposed on the color filter substrate. The second polarizer is attached to the shielding layer. The touch module includes an upper cover substrate, a plurality of sensing pads, and a protective layer. The plurality of sensing pads are formed on a lower side of the upper cover substrate, and the plurality of sensing pads are electrically connected to the shielding layer. The protective layer is formed on the plurality of sensing pads, and the protective layer has a thickness of about several micrometers (10 -6 m). The lower side of the protective layer is attached to the display module by a glue layer.

本發明另提供一種觸控裝置,包含一顯示模組以及一觸控模組。該顯示模組包含一薄膜電晶體基板、一彩色濾光片基板、一液晶層、一第一偏光片、一第二偏光片以及一屏蔽層。該液晶層設置於該薄膜電晶體基板與該彩色濾光片基板之間。該第一偏光片貼附於該薄膜電晶體基板。該第二偏光片貼附於該彩色濾光片基板。該屏蔽層設置於該第二偏光片上。該觸控模組包含一上蓋基板、複數個感測墊以及一保護層。該複數個感測墊形成於該上蓋基板之下側,且該複數個感測墊電性連接於該屏蔽層。該保護層形成於該複數個感測墊上,且該保護層之厚度約為數個微米(10-6 m),該保護層之下側藉由一膠合層貼附於該顯示模組上。The present invention further provides a touch device including a display module and a touch module. The display module comprises a thin film transistor substrate, a color filter substrate, a liquid crystal layer, a first polarizer, a second polarizer and a shielding layer. The liquid crystal layer is disposed between the thin film transistor substrate and the color filter substrate. The first polarizer is attached to the thin film transistor substrate. The second polarizer is attached to the color filter substrate. The shielding layer is disposed on the second polarizer. The touch module includes an upper cover substrate, a plurality of sensing pads, and a protective layer. The plurality of sensing pads are formed on a lower side of the upper cover substrate, and the plurality of sensing pads are electrically connected to the shielding layer. The protective layer is formed on the plurality of sensing pads, and the protective layer has a thickness of about several micrometers (10 -6 m). The lower side of the protective layer is attached to the display module by a glue layer.

請參考第2圖,第2圖為本發明之觸控裝置之第一實施例之示意圖。觸控裝置200包含觸控模組210以及顯示模組220。顯示模組220包含第一偏光片221、薄膜電晶體基板222、液晶層223、彩色濾光片基板224、第二偏光片225以及屏蔽層226。液晶層223設置於薄膜電晶體基板222與彩色濾光片基板224之間,第一偏光片221貼附於薄膜電晶體基板222上,屏蔽層226設置於彩色濾光片基板224上,第二偏光片225貼附於屏蔽層226上。觸控模組210包含上蓋基板211、複數個感測墊212以及保護層213。上蓋基板211之下側藉由膠合層231貼附於顯示模組220上,複數個感測墊212形成於上蓋基板211之下側,複數個感測墊212上具有保護層213。觸控模組210為單層基板之結構,也就是複數個感測墊212直接形成於上蓋基板211之下側。由於保護層213之厚度大約為數個微米(10-6 m),所以保護層213上無法再設置屏蔽層。因此,本發明之觸控裝置200將屏蔽層226設置於顯示模組220中,且觸控模組210之接地電壓電性連接於屏蔽層226,以阻隔顯示模組220對觸控模組210所產生的雜訊。在本實施例中,屏蔽層226包含二種實施方式,第一種方式是利用鍍有導電層之聚乙烯對苯二甲酸酯(Polyethylene terephthalate,PET)薄膜形成屏蔽層226貼附於彩色濾光片基板224上,第二種方式是利用氧化銦錫(Indium Tin Oxide,ITO)之製程形成屏蔽層226沉積於彩色濾光片基板224上。Please refer to FIG. 2 , which is a schematic diagram of a first embodiment of the touch device of the present invention. The touch device 200 includes a touch module 210 and a display module 220. The display module 220 includes a first polarizer 221 , a thin film transistor substrate 222 , a liquid crystal layer 223 , a color filter substrate 224 , a second polarizer 225 , and a shielding layer 226 . The liquid crystal layer 223 is disposed between the thin film transistor substrate 222 and the color filter substrate 224. The first polarizer 221 is attached to the thin film transistor substrate 222, and the shielding layer 226 is disposed on the color filter substrate 224. The polarizer 225 is attached to the shield layer 226. The touch module 210 includes an upper cover substrate 211 , a plurality of sensing pads 212 , and a protective layer 213 . The lower surface of the upper cover substrate 211 is attached to the display module 220 by the glue layer 231. The plurality of sensing pads 212 are formed on the lower side of the upper cover substrate 211, and the plurality of sensing pads 212 have a protective layer 213 thereon. The touch module 210 is a single-layer substrate structure, that is, a plurality of sensing pads 212 are directly formed on the lower side of the upper cover substrate 211. Since the thickness of the protective layer 213 is approximately several micrometers (10 -6 m), no shielding layer can be disposed on the protective layer 213. Therefore, the touch device 200 of the present invention is disposed in the display module 220, and the ground voltage of the touch module 210 is electrically connected to the shielding layer 226 to block the display module 220 from contacting the touch module 210. The noise generated. In this embodiment, the shielding layer 226 includes two embodiments. The first method uses a polyethylene terephthalate (PET) film coated with a conductive layer to form a shielding layer 226 attached to the color filter. On the light substrate 224, the second method is to deposit a shielding layer 226 on the color filter substrate 224 by using an indium tin oxide (ITO) process.

請參考第3圖,第3圖為本發明之觸控裝置之接地電壓之示意圖。觸控裝置200另包含軟性電路板310,軟性電路板310上具有接地電壓區311。觸控模組210以及顯示模組220分別具有接地電壓321、322,觸控模組210之複數個感測墊212之接地電壓321電性連接於軟性電路板310之接地電壓區311,屏蔽層226之接地電壓323電性連接於軟性電路板310之接地電壓區311,所以複數個感測墊212之接地電壓321藉由軟性電路板310電性連接於屏蔽層226。對於觸控裝置200而言,觸控模組210以及顯示模組220具有相同之接地電壓,所以顯示模組220之接地電壓322電性連接於軟性電路板310之接地電壓區311,也就是薄膜電晶體基板222經由軟性電路板310接地至接地電壓區311,使屏蔽層226與薄膜電晶體基板222之接地電位一致。如此,觸控模組210以及顯示模組220之接地電壓321、322可藉由軟性電路板310之接地電壓區311電性連接在一起。本發明之觸控裝置200由於使用單層結構之觸控模組210,觸控模組210上無法設置屏蔽層,然而顯示模組220上具有屏蔽層226,再藉由軟性電路板310將複數個感測墊212之接地電壓321電性連接於屏蔽層226,因此觸控裝置200可藉由屏蔽層226阻隔顯示模組220對觸控模組210所產生的雜訊。Please refer to FIG. 3 , which is a schematic diagram of the ground voltage of the touch device of the present invention. The touch device 200 further includes a flexible circuit board 310 having a ground voltage region 311 thereon. The touch module 210 and the display module 220 respectively have ground voltages 321 and 322. The ground voltage 321 of the plurality of sensing pads 212 of the touch module 210 is electrically connected to the ground voltage region 311 of the flexible circuit board 310. The ground voltage 323 of the 226 is electrically connected to the ground voltage region 311 of the flexible circuit board 310. Therefore, the ground voltage 321 of the plurality of sensing pads 212 is electrically connected to the shielding layer 226 by the flexible circuit board 310. For the touch device 200, the touch module 210 and the display module 220 have the same ground voltage. Therefore, the ground voltage 322 of the display module 220 is electrically connected to the ground voltage region 311 of the flexible circuit board 310, that is, the film. The transistor substrate 222 is grounded to the ground voltage region 311 via the flexible circuit board 310, and the shield layer 226 is aligned with the ground potential of the thin film transistor substrate 222. As such, the ground voltages 321 and 322 of the touch module 210 and the display module 220 can be electrically connected together by the ground voltage region 311 of the flexible circuit board 310. Since the touch device 200 of the present invention uses the touch module 210 of the single-layer structure, the shield module 210 cannot be provided with a shielding layer. However, the display module 220 has a shielding layer 226, and the flexible circuit board 310 has a plurality of flexible circuit boards 310. The grounding voltage 321 of the sensing pads 212 is electrically connected to the shielding layer 226. Therefore, the sensing device 200 can block the noise generated by the display module 220 on the touch module 210 by the shielding layer 226.

請參考第4圖,第4圖為本發明之觸控裝置之觸控區以及顯示區之示意圖。本發明之觸控裝置200包含單層結構之觸控模組210以及顯示模組220,觸控模組210藉由膠合層231貼附於顯示模組220上,且顯示模組220上具有屏蔽層226可阻隔顯示模組220對觸控模組210所產生的雜訊。觸控模組210之觸控區217為使用者可進行觸控操作之區域,顯示模組220之顯示區227為使用者之可視區域。相較於感測墊整合於顯示模組之觸控裝置,本發明之觸控裝置200之觸控區217大於顯示區227,如此可提供使用者更靈敏的觸控操作,特別是使用者在顯示區邊緣的進行觸控操作時。由於觸控區217之邊緣之感測墊並不完整,所以感應較不靈敏,但若是觸控區217大於顯示區227時,使用者在觸控區217進行的觸控操作都是由完整的感測墊進行感應,不會有感應不靈敏的問題發生。Please refer to FIG. 4 , which is a schematic diagram of a touch area and a display area of the touch device of the present invention. The touch device 200 of the present invention comprises a single-layer structure of the touch module 210 and the display module 220. The touch module 210 is attached to the display module 220 by the glue layer 231, and the display module 220 has a shield. The layer 226 can block the noise generated by the display module 220 to the touch module 210. The touch area 217 of the touch module 210 is an area where the user can perform a touch operation, and the display area 227 of the display module 220 is a visible area of the user. Compared with the touch device integrated in the display module, the touch area 217 of the touch device 200 of the present invention is larger than the display area 227, so that the user can provide a more sensitive touch operation, especially for the user. When the touch operation is performed at the edge of the display area. Since the sensing pad at the edge of the touch area 217 is not complete, the sensing is less sensitive. However, if the touch area 217 is larger than the display area 227, the touch operation performed by the user in the touch area 217 is complete. The sensing pad is sensed and there is no problem of insensitivity.

請參考第5圖,第5圖為本發明之觸控裝置之第二實施例之示意圖。觸控裝置500包含觸控模組510以及顯示模組520。顯示模組520包含第一偏光片521、薄膜電晶體基板522、液晶層523、彩色濾光片基板524、第二偏光片525以及屏蔽層526。觸控模組510包含上蓋基板511、複數個感測墊512以及保護層513。上蓋基板511之下側藉由膠合層531貼附於顯示模組520上,複數個感測墊512形成於上蓋基板511之下側,複數個感測墊512上具有保護層513。觸控模組510為單層基板之結構,也就是複數個感測墊512直接形成於上蓋基板511之下側。由於保護層513之厚度大約為數個微米(10-6 m),所以保護層513上無法再設置屏蔽層。因此,本發明之觸控裝置500將屏蔽層526設置於顯示模組520中,且觸控模組510之接地電壓電性連接於屏蔽層526,以阻隔顯示模組520對觸控模組510所產生的雜訊。在本實施例中,第二偏光片525貼附於彩色濾光片基板524上,屏蔽層526設置於第二偏光片525上。由於第二偏光片無法承受氧化銦錫(ITO)之製程,所以屏蔽層526是利用鍍有導電層之聚乙烯對苯二甲酸酯(PET)之薄膜所形成,再貼附於第二偏光片525上。Please refer to FIG. 5 , which is a schematic diagram of a second embodiment of the touch device of the present invention. The touch device 500 includes a touch module 510 and a display module 520. The display module 520 includes a first polarizer 521 , a thin film transistor substrate 522 , a liquid crystal layer 523 , a color filter substrate 524 , a second polarizer 525 , and a shielding layer 526 . The touch module 510 includes a cover substrate 511 , a plurality of sensing pads 512 , and a protective layer 513 . The lower surface of the upper cover substrate 511 is attached to the display module 520 by a glue layer 531. The plurality of sensing pads 512 are formed on the lower side of the upper cover substrate 511, and the plurality of sensing pads 512 have a protective layer 513 thereon. The touch module 510 is a single-layer substrate structure, that is, a plurality of sensing pads 512 are directly formed on the lower side of the upper cover substrate 511. Since the thickness of the protective layer 513 is approximately several micrometers (10 -6 m), the shielding layer can no longer be disposed on the protective layer 513. Therefore, the touch device 520 of the present invention is disposed in the display module 520, and the ground voltage of the touch module 510 is electrically connected to the shielding layer 526 to block the display module 520 from the touch module 510. The noise generated. In the embodiment, the second polarizer 525 is attached to the color filter substrate 524, and the shielding layer 526 is disposed on the second polarizer 525. Since the second polarizer cannot withstand the process of indium tin oxide (ITO), the shield layer 526 is formed by using a film of a polyethylene terephthalate (PET) coated with a conductive layer, and then attached to the second polarized light. On the film 525.

綜上所述,本發明之觸控裝置包含單層結構之觸控模組以及顯示模組,觸控模組藉由膠合層貼附於顯示模組上。顯示模組包含薄膜電晶體基板、彩色濾光片基板、液晶層、第一偏光片、第二偏光片以及屏蔽層,觸控模組包含上蓋基板、複數個感測墊以及保護層。屏蔽層可設置於彩色濾光片基板以及第二偏光片之間或設置於第二偏光片上。複數個感測墊形成於上蓋基板之下側,複數個感測墊之接地電壓藉由軟性電路板電性連接於屏蔽層,因此屏蔽層可阻隔顯示模組對觸控模組所產生的雜訊。In summary, the touch device of the present invention comprises a single-layer touch module and a display module, and the touch module is attached to the display module by a glue layer. The display module includes a thin film transistor substrate, a color filter substrate, a liquid crystal layer, a first polarizer, a second polarizer, and a shielding layer. The touch module includes a cover substrate, a plurality of sensing pads, and a protective layer. The shielding layer may be disposed between the color filter substrate and the second polarizer or on the second polarizer. A plurality of sensing pads are formed on a lower side of the upper cover substrate, and a ground voltage of the plurality of sensing pads is electrically connected to the shielding layer by a flexible circuit board, so that the shielding layer can block the miscellaneous generated by the display module to the touch module News.

以上所述僅為本發明之較佳實施例,凡依本發明申請專利範圍所做之均等變化與修飾,皆應屬本發明之涵蓋範圍。The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100、200、500...觸控裝置100, 200, 500. . . Touch device

110、210、510...觸控模組110, 210, 510. . . Touch module

111、211、511...上蓋基板111, 211, 511. . . Upper cover substrate

112、212、512...複數個感測墊112, 212, 512. . . Multiple sensing pads

113、213、513...保護層113, 213, 513. . . The protective layer

114...感測基板114. . . Sensing substrate

120、220、520...顯示模組120, 220, 520. . . Display module

121、221、521‧‧‧第一偏光片121, 221, 521‧‧‧ first polarizer

122、222、522‧‧‧薄膜電晶體基板122, 222, 522‧‧‧ film dielectric substrate

123、223、523‧‧‧液晶層123, 223, 523‧‧ ‧ liquid crystal layer

124、224、524‧‧‧彩色濾光片基板124, 224, 524‧‧‧ color filter substrate

125、225、525‧‧‧第二偏光片125, 225, 525‧‧‧ second polarizer

115、226、526‧‧‧屏蔽層115, 226, 526‧‧ ‧ shield

131、231、531‧‧‧膠合層131, 231, 531‧‧ ‧ glue layer

217‧‧‧觸控區217‧‧ ‧ touch area

227‧‧‧顯示區227‧‧‧ display area

310‧‧‧軟性電路板310‧‧‧Soft circuit board

311‧‧‧接地電壓區311‧‧‧ Grounding voltage zone

321、322、323‧‧‧接地電壓321, 322, 323‧‧‧ grounding voltage

第1圖為先前技術之電容式觸控裝置之示意圖。FIG. 1 is a schematic diagram of a prior art capacitive touch device.

第2圖為本發明之觸控裝置之第一實施例之示意圖。2 is a schematic view of a first embodiment of a touch device of the present invention.

第3圖為本發明之觸控裝置之接地電壓之示意圖。FIG. 3 is a schematic diagram of the ground voltage of the touch device of the present invention.

第4圖為本發明之觸控裝置之觸控區以及顯示區之示意圖。4 is a schematic view of a touch area and a display area of the touch device of the present invention.

第5圖為本發明之觸控裝置之第二實施例之示意圖。FIG. 5 is a schematic view showing a second embodiment of the touch device of the present invention.

200...觸控裝置200. . . Touch device

210...觸控模組210. . . Touch module

211...上蓋基板211. . . Upper cover substrate

212...複數個感測墊212. . . Multiple sensing pads

213...保護層213. . . The protective layer

220...顯示模組220. . . Display module

221...第一偏光片221. . . First polarizer

222...薄膜電晶體基板222. . . Thin film transistor substrate

223...液晶層223. . . Liquid crystal layer

224...彩色濾光片基板224. . . Color filter substrate

225...第二偏光片225. . . Second polarizer

226...屏蔽層226. . . Shield

231...膠合層231. . . Glued layer

Claims (14)

一種觸控裝置,包含:一顯示模組,包含:一薄膜電晶體基板;一彩色濾光片基板;一液晶層,設置於該薄膜電晶體基板與該彩色濾光片基板之間;一第一偏光片,貼附於該薄膜電晶體基板之下側;一屏蔽層,設置於該彩色濾光片基板上;以及一第二偏光片,貼附於該屏蔽層上;以及一觸控模組,包含:一上蓋基板;複數個感測墊,形成於該上蓋基板之下側,該複數個感測墊以及該屏蔽層電性連接一接地電壓區;以及一保護層,形成於該複數個感測墊上,該保護層之厚度約為數個微米(10-6 m),該保護層之下側藉由一膠合層貼附於該顯示模組上。A touch device includes: a display module comprising: a thin film transistor substrate; a color filter substrate; a liquid crystal layer disposed between the thin film transistor substrate and the color filter substrate; a polarizer attached to the lower side of the thin film transistor substrate; a shielding layer disposed on the color filter substrate; and a second polarizer attached to the shielding layer; and a touch mode The group includes: a top cover substrate; a plurality of sensing pads formed on a lower side of the upper cover substrate, the plurality of sensing pads and the shielding layer are electrically connected to a ground voltage region; and a protective layer formed on the plurality The thickness of the protective layer is about several micrometers (10 -6 m) on the sensing pads, and the lower side of the protective layer is attached to the display module by a glue layer. 如請求項1所述之觸控裝置,其中該屏蔽層係為鍍有一導電層之聚乙烯對苯二甲酸酯(Polyethylene terephthalate,PET)薄膜。 The touch device of claim 1, wherein the shielding layer is a polyethylene terephthalate (PET) film coated with a conductive layer. 如請求項1所述之觸控裝置,其中該屏蔽層係由氧化銦錫(Indium Tin Oxide,ITO)所形成之屏蔽層。 The touch device of claim 1, wherein the shielding layer is a shielding layer formed of Indium Tin Oxide (ITO). 如請求項3所述之觸控裝置,其中該氧化銦錫(ITO)所形成之屏 蔽層係濺鍍(sputtering)於該彩色濾光片基板上。 The touch device of claim 3, wherein the indium tin oxide (ITO) is formed by the screen The mask is sputtered onto the color filter substrate. 如請求項1所述之觸控裝置,其中該顯示模組包含一顯示區,該觸控模組包含一觸控區,該觸控區大於該顯示區。 The touch device of claim 1, wherein the display module comprises a display area, and the touch control module comprises a touch area, the touch area being larger than the display area. 如請求項1所述之觸控裝置,其中該觸控模組包含一軟性電路板,該複數個感測墊係藉由該軟性電路板電性連接於該屏蔽層。 The touch device of claim 1, wherein the touch module comprises a flexible circuit board, and the plurality of sensing pads are electrically connected to the shielding layer by the flexible circuit board. 如請求項6所述之觸控裝置,其中該軟性電路板包含該接地電壓區。 The touch device of claim 6, wherein the flexible circuit board comprises the ground voltage region. 如請求項7所述之觸控裝置,其中該薄膜電晶體基板係經由該軟性電路板接地至該接地電壓區,以使該屏蔽層與該薄膜電晶體基板之接地電位一致。 The touch device of claim 7, wherein the thin film transistor substrate is grounded to the ground voltage region via the flexible circuit board such that the shielding layer conforms to a ground potential of the thin film transistor substrate. 一種觸控裝置,包含:一顯示模組,包含:一薄膜電晶體基板;一彩色濾光片基板;一液晶層,設置於該薄膜電晶體基板與該彩色濾光片基板之間;一第一偏光片,貼附於該薄膜電晶體基板之下側;一第二偏光片,貼附於該彩色濾光片基板;以及一屏蔽層,設置於該第二偏光片上;以及一觸控模組,包含:一上蓋基板;複數個感測墊,形成於該上蓋基板之下側,該複數個感測墊以及該屏蔽層電性連接一接地電壓區;以及 一保護層,形成於該複數個感測墊上,該保護層之厚度約為數個微米(10-6 m),該保護層之下側藉由一膠合層貼附於該顯示模組上。A touch device includes: a display module comprising: a thin film transistor substrate; a color filter substrate; a liquid crystal layer disposed between the thin film transistor substrate and the color filter substrate; a polarizer attached to the lower side of the thin film transistor substrate; a second polarizer attached to the color filter substrate; and a shielding layer disposed on the second polarizer; and a touch mode The group includes: a top cover substrate; a plurality of sensing pads formed on a lower side of the upper cover substrate, the plurality of sensing pads and the shielding layer are electrically connected to a ground voltage region; and a protective layer formed on the plurality The thickness of the protective layer is about several micrometers (10 -6 m) on the sensing pads, and the lower side of the protective layer is attached to the display module by a glue layer. 如請求項9所述之觸控裝置,其中該屏蔽層係為鍍有一導電層之聚乙烯對苯二甲酸酯(Polyethylene terephthalate,PET)之薄膜。 The touch device of claim 9, wherein the shielding layer is a polyethylene terephthalate (PET) film coated with a conductive layer. 如請求項9所述之觸控裝置,其中該顯示模組包含一顯示區,該觸控模組包含一觸控區,該觸控區大於該顯示區。 The touch device of claim 9, wherein the display module comprises a display area, and the touch module comprises a touch area, the touch area being larger than the display area. 如請求項9所述之觸控裝置,其中該觸控模組包含一軟性電路板,該複數個感測墊係藉由該軟性電路板電性連接於該屏蔽層。 The touch device of claim 9, wherein the touch module comprises a flexible circuit board, and the plurality of sensing pads are electrically connected to the shielding layer by the flexible circuit board. 如請求項12所述之觸控裝置,其中該軟性電路板包含該接地電壓區。 The touch device of claim 12, wherein the flexible circuit board comprises the ground voltage region. 如請求項13所述之觸控裝置,其中該薄膜電晶體基板係經由該軟性電路板接地至該接地電壓區,以使該屏蔽層與該薄膜電晶體基板之接地電位一致。The touch device of claim 13, wherein the thin film transistor substrate is grounded to the ground voltage region via the flexible circuit board such that the shielding layer is aligned with a ground potential of the thin film transistor substrate.
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