1356330 • . 六、 [0001] [0002] · τ 100#.08月24日核正_頁 發明說明： 【發明所屬之技術領域】 本發明係關於一種觸控液晶顯示裝置。 【先前技術】 近年來，隨操作人性化、簡潔化發展，帶有觸控面板之 觸控顯示裝置，特別是觸控液晶顯示裝置，越來越廣泛 地應用於生產及生活中。由於用戶可以直接用手或者其 他物體接觸觸控液晶顯示裝置以輸入訊息，從而減少甚 至消除用戶對其他輸入設備（如鍵盤、滑鼠、遙控器等） 之依賴，方便用戶之操作。 [0003] 當前，觸控面板通常包括電阻型、電容型、聲波型、紅 外線型等多種類型，其一般為矩形透明面板形式，並採 用堆疊之方式設置於液晶顯示裝置之顯示面一側，並藉 由軟性電路板等連接於液晶顯示裝置及相應之控制裝置 ，從而實現觸控功能。 [0004] 惟，上述堆疊結構之觸控液晶顯示裝置中，觸控面板與 液晶顯示裝置需要分別製作，然後再黏合於一起，其製 造成本較高。觸控面板通常藉由一黏合層黏合於液晶顯 示裝置之顯示面，該觸控面板及黏合層使觸控液晶顯示 裝置之厚度及重量增加。同時，由於該觸控面板及黏合 層對光具有吸收、折射及反射等光學作用，使液晶顯示 裝置之光穿透率降低，且易產生光學干擾，造成顯示圖 像變形或變色，降低其顯示效果。 【發明内容】 096147871 有必要提供一種厚度薄、重量輕且顯示效果良好之觸控 表單編號Α0101 第3頁/共14頁 1003311368-0 Ο [0005] 1356330 100年.08月24日梭正替换頁 液晶顯示裝置。 [0006] 一種觸控液晶顯示裝置，其包括一第一基板、一與該第 一基板相對設置之第二基板及一夾於該第一基板與該第 二基板之間之液晶層，該第二基板遠離該液晶層一側設 置一傳感層、一偏光層及一驅動層，以形成耦合電容實 現觸控顯示。 [0007] —種觸控液晶顯示裝置，其包括一第一基板、一與該第 一基板相對設置之第二基板及一夾於該第一基板與該第 二基板之間之液晶層，該第二基板遠離該液晶層一側包 括一驅動層、一傳感層及炎持於該驅動層及該傳感層之 間之偏光層。 [0008] 相較於先前技術，該觸控液晶顯示裝置之第二基板表面 具有一傳感層、偏光層及一驅動.層，藉由該偏光層作為 絕緣層，以形成耦合電容，實現觸控顯示功能。該觸控 液晶顯示裝置不需要額外之觸控面板，其製造成本低、 厚度薄、重量輕，有利於觸控液晶顯示裝置之輕薄化發 展。同時，由於未使用觸控面板及黏貼帶等元件，有效 減少光吸收、折射、反射及干擾等不良現象，該觸控液 晶顯示裝置之整體透光率高及顯示效果良好。 【實施方式】 [0009] 請參閱圖1，係本發明觸控液晶顯示裝置第一實施方式之 剖面結構示意圖。該觸控液晶顯示裝置1包括一第一基板 21、一與該第一基板21相對設置之第二基板22及一夾於 該第一基板21與該第二基板22之間之液晶層23。 096147871 表單编號A0101 第4頁/共14頁 Ο 1003311368-0 1356330 • Λ ； 1:00年:Οβ月2 4日按正#^頁 [0010] 該第一基板21遠離該液晶層23—側之表面設置一第一偏 光層211。該第二基板22遠離該液晶層23 —侧之表面依次 層疊設置一傳感層24、一第二偏光層25、一驅動層26及 一保護層27。其中該傳感層24鄰近該第二基板22，該第 二基板22上進一步包括一軟性電路板28，該軟性電路板 28設置於該驅動層26上，且與該驅動層26及傳感層24均 電連接，用於傳感該觸控液晶顯示裝置1產生之觸控訊號 至該外部控制器（圖未示）。 [0011] 請一併參閱圖2，係觸控液晶顯示裝置1之平面示意圖。 該傳感層24係由均勻透明導電材質印刷於該第二偏光層 25鄰近該第二基板22 —側形成，如印刷氧化銦錫薄膜形 成。該傳感層24包括複數傳感線241，該複數傳感線241 係相互平行的透明導電長條，且該複數傳感線241於該第 二偏光層25之一側成行間隔排列。 [0012] 該驅動層26與該傳感層24相對，分別位於該第二偏光層 25的兩側，該驅動層2Θ亦係由氧化銦錫薄膜印刷於該第 二偏光層25形成。該驅動層26包括複數相互平行的長條 狀之驅動線261，且該複數驅動線261於該第二偏光層25 之另一側成列間隔排列，並與該複數傳感線241於空間上 垂直絕緣相交。 [0013] 該第二偏光層25係一絕緣光學膜片。一導通孔253貫通該 傳感層24、該偏光層25及該驅動層26。該傳感層24之複 數傳感線241藉由該導通孔253與該軟性電路板28電連接 ，進而連接至外部的電容傳感電路（圖未示）。該驅動層 26亦藉由該軟性電路板28連接至一驅動電壓源（圖未示） 096147871 表單編號Α0101 第5頁/共14頁 1003311368-0 1356330 100年.08月Z4日修正_頁 。該軟性電路板28獨立傳輸該傳感層24及該驅動層26之 訊號》 [0014] 該傳感層24與該驅動層26藉由該第二偏光層25作為絕緣 層’形成耦合電容。且該複數傳感線241與該複數驅動線 261於不同平面上垂直相交，形成複數電容傳感節點200 ’每一電容傳感節點200表示該觸控液晶顯示裝置1平面 上的不同座標。每一電容傳感節點2〇〇接收來自接觸該電 谷傳感節點200的目標電容的輸入，接觸該電容傳感節點 20〇則相應影響該電容傳感節點2〇〇之電容。 [0015] 該觸控液晶顯示裝置1工作的工作原理如下：該驅動電壓 源逐條掃描該驅動線261，而電容傳感電路一直感應該傳 感層24之複數傳感線241 »該驅動電壓源驅動一驅動線 261時，每一電容傳感節點2〇〇之電容耦合至該複數傳感 線241，該電容傳感電路感應所有平行之複數傳感線241 。當外界觸控該一電容傳感節點2〇〇時，該電容傳感節點 200之電容發生改變，該電容傳感電路藉由該傳感線241 感應此電容傳感節點200之電容的變化，對應轉化該電容 的變化為一控制訊號輸出至該外部控制器，從而實現該 觸控液晶顯示裝置1對每一電容傳感節點200之控制。 [0016] 相較於先前技術，本發明觸控液晶顯示裝置i之第二偏光 層25之兩側分別印刷該傳感層24及該驅動層26，以該第 一偏光層25作為絕緣層形成複數竊合電容，以實現觸控 功能❶該觸控液晶顯示裝置1不需要額外之觸控面板，同 時還省略了重新製造觸控面板所必須的絕緣層的步驟， 096147871 從而，其製造成本低'厚度薄、重量輕 表單編號A0101 第6頁/共14頁 有利於觸控液 1003311368-0 1356330 • * , 100年08月24日修正替換頁 晶顯示裝置1之輕薄化發展。同時，由於未使用觸控面板 及黏貼帶等元件，有效減少光吸收、折射、反射及干擾 等不良現象，該觸控液晶顯示裝置1之整體透光率高及顯 示效果良好。 [0017] 請參閱圖3，係本發明觸控液晶顯示裝置第二實施方式之 剖面示意圖。該觸控液晶顯示裝置2與該第一實施方式之 觸控液晶顯示裝置1之結構大致相同，其主要區別在於： 該觸控液晶顯示裝置2包括二軟性電路板38，且該軟性電 路板38分別電連接驅動層36與傳感層34。該觸控液晶顯 示裝置2無須設置導通孔即可實現該傳感層34連接至第二 偏光層3 5之另一側。 [0018] 請再參閱圖4，係本發明觸控液晶顯示裝置第三實施方式 之剖面示意圖。該觸控液晶顯示裝置3與該第一實施方式 之觸控液晶顯示裝置1之結構大致相同，其主要區別在於 :該觸控液晶顯示裝置3包括一 “Υ”狀之軟性電路板48 ，該軟性電路板48之二連接片481及482分別連接至驅動 層46與傳感層44，以實現訊號傳輸，亦無須設置導通孔 〇 [0019] 惟，本發明之觸控液晶顯示裝置不限於上述實施方式， 該驅動層與傳感層可以互換位置，只需該驅動層與該傳 感層可以藉由該偏光層作為絕緣層形成耦合電容即可。 [0020] 綜上所述，本發明確已符合發明專利之要件，爰依法提 出申請專利。惟，以上所述者僅係本發明之較佳實施方 式，本發明之範圍並不以上述實施方式爲限，舉凡熟悉 096147871 表單編號Α0101 第7頁/共14頁 1003311368-0 1356330 100年.08月24日按正_頁 本案技藝之人士援依本發明之精神所作之等效修飾或變 化，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0021] 圖1係本發明觸控液晶顯示裝置第一實施方式之剖面示意 圖。 [0022] 圖2係圖1所示觸控液晶顯示裝置之平面示意圖。 [0023] 圖3係本發明觸控液晶顯示裝置第二實施方式之剖面示意 圖。 [0024] 圖4係本發明觸控液晶顯示裝置第三實施方式之剖面示意 圖。 【主要元件符號說明】 [0025] 觸控液晶顯示裝置：1、2、3 [0026] 電容傳感節點：200 [0027] 第一基板：21 [0028] 第一偏光層：211 [0029] 該第二基板：22 [0030] 液晶層：23 [0031] 傳感層：24、34、44 [0032] 傳感線：241 [0033] 第二偏光層：25、35 [0034] 導通孔：253 096147871 表單編號A0101 第8頁/共14頁 1003311368-0 100年.08月24.日按正_頁 1356330 · .1356330 • . VI. [0001] [0002] · τ 100#.08月24日核正_页 Description of the Invention: [Technical Field] The present invention relates to a touch liquid crystal display device. [Prior Art] In recent years, with the user-friendly and succinct development, touch display devices with touch panels, especially touch liquid crystal display devices, are more and more widely used in production and life. Since the user can directly touch the touch liquid crystal display device with a hand or other object to input a message, thereby reducing or even eliminating the user's dependence on other input devices (such as a keyboard, a mouse, a remote controller, etc.), the user can operate. [0003] Currently, the touch panel generally includes a plurality of types of a resistive type, a capacitive type, an acoustic wave type, an infrared type, and the like, and is generally in the form of a rectangular transparent panel, and is disposed on the display surface side of the liquid crystal display device in a stacked manner, and The touch function is realized by connecting a liquid crystal display device and a corresponding control device through a flexible circuit board or the like. [0004] However, in the touch liquid crystal display device of the above-mentioned stacked structure, the touch panel and the liquid crystal display device need to be separately fabricated and then bonded together, which is relatively high. The touch panel is usually adhered to the display surface of the liquid crystal display device by an adhesive layer. The touch panel and the adhesive layer increase the thickness and weight of the touch liquid crystal display device. At the same time, since the touch panel and the adhesive layer have optical effects such as absorption, refraction, and reflection on the light, the light transmittance of the liquid crystal display device is lowered, and optical interference is easily generated, causing deformation or discoloration of the display image, and reducing the display thereof. effect. SUMMARY OF THE INVENTION 096147871 It is necessary to provide a touch form number that is thin, light, and has a good display effect. Α0101 Page 3/14 pages 1003311368-0 Ο [0005] 1356330 100 years. August 24th Shuttle replacement page Liquid crystal display device. [0006] A touch liquid crystal display device includes a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate. A sensing layer, a polarizing layer and a driving layer are disposed on a side of the second substrate away from the liquid crystal layer to form a coupling capacitor for touch display. [0007] A touch liquid crystal display device includes a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate. The side of the second substrate away from the liquid crystal layer comprises a driving layer, a sensing layer and a polarizing layer between the driving layer and the sensing layer. [0008] Compared with the prior art, the second substrate surface of the touch liquid crystal display device has a sensing layer, a polarizing layer and a driving layer, and the polarizing layer is used as an insulating layer to form a coupling capacitor to realize touch. Control display function. The touch liquid crystal display device does not require an additional touch panel, and has low manufacturing cost, thin thickness, and light weight, which is advantageous for the thin and light development of the touch liquid crystal display device. At the same time, since the components such as the touch panel and the adhesive tape are not used, the light absorption, refraction, reflection and interference are effectively reduced, and the overall liquid transmittance of the touch liquid crystal display device is high and the display effect is good. [Embodiment] FIG. 1 is a cross-sectional structural view showing a first embodiment of a touch liquid crystal display device of the present invention. The touch liquid crystal display device 1 includes a first substrate 21, a second substrate 22 disposed opposite the first substrate 21, and a liquid crystal layer 23 sandwiched between the first substrate 21 and the second substrate 22. 096147871 Form No. A0101 Page 4 of 14 Ο 1003311368-0 1356330 • Λ ; 1:00年:Οβ月2 4日正正#^页[0010] The first substrate 21 is away from the liquid crystal layer 23-side A first polarizing layer 211 is disposed on the surface. A sensing layer 24, a second polarizing layer 25, a driving layer 26 and a protective layer 27 are sequentially stacked on the surface of the second substrate 22 away from the liquid crystal layer 23. The sensing layer 24 is adjacent to the second substrate 22, and the second substrate 22 further includes a flexible circuit board 28 disposed on the driving layer 26, and the driving layer 26 and the sensing layer. 24 is electrically connected to sense the touch signal generated by the touch liquid crystal display device 1 to the external controller (not shown). [0011] Please refer to FIG. 2 together, which is a schematic plan view of the touch liquid crystal display device 1. The sensing layer 24 is formed by printing a uniform transparent conductive material on the side of the second polarizing layer 25 adjacent to the second substrate 22, such as a printed indium tin oxide film. The sensing layer 24 includes a plurality of sensing lines 241 which are transparent conductive strips parallel to each other, and the plurality of sensing lines 241 are arranged at a row spacing on one side of the second polarizing layer 25. [0012] The driving layer 26 is opposite to the sensing layer 24, and is respectively located on two sides of the second polarizing layer 25. The driving layer 2 is also formed by printing an indium tin oxide film on the second polarizing layer 25. The driving layer 26 includes a plurality of parallel driving lines 261 parallel to each other, and the plurality of driving lines 261 are arranged in a row at the other side of the second polarizing layer 25, and are spatially spaced from the plurality of sensing lines 241. Vertical insulation intersects. [0013] The second polarizing layer 25 is an insulating optical film. A via hole 253 penetrates through the sensing layer 24, the polarizing layer 25, and the driving layer 26. The plurality of sensing lines 241 of the sensing layer 24 are electrically connected to the flexible circuit board 28 via the vias 253, and are then connected to an external capacitive sensing circuit (not shown). The driving layer 26 is also connected to a driving voltage source by the flexible circuit board 28 (not shown). 096147871 Form No. 1010101 Page 5/14 pages 1003311368-0 1356330 100 years. August Z4 revision _ page. The flexible circuit board 28 independently transmits the signals of the sensing layer 24 and the driving layer 26. The sensing layer 24 and the driving layer 26 form a coupling capacitor by using the second polarizing layer 25 as an insulating layer. The plurality of sensing lines 241 and the plurality of driving lines 261 are perpendicularly intersected on different planes to form a plurality of capacitive sensing nodes 200'. Each of the capacitive sensing nodes 200 represents a different coordinate on the plane of the touch liquid crystal display device 1. Each capacitive sensing node 2 receives an input from a target capacitor that contacts the valley sensing node 200. Contacting the capacitive sensing node 20A accordingly affects the capacitance of the capacitive sensing node 2〇〇. [0015] The working principle of the touch liquid crystal display device 1 is as follows: the driving voltage source scans the driving line 261 one by one, and the capacitive sensing circuit always senses the plurality of sensing lines 241 of the sensing layer 24 » the driving voltage When the source drives a drive line 261, the capacitance of each capacitive sensing node 2 is coupled to the complex sense line 241, which senses all of the parallel complex sense lines 241. When the external sensing touches the capacitive sensing node 2, the capacitance of the capacitive sensing node 200 changes, and the capacitive sensing circuit senses the change of the capacitance of the capacitive sensing node 200 by the sensing line 241. Corresponding to the change of the capacitance is a control signal output to the external controller, thereby implementing control of each capacitive sensing node 200 by the touch liquid crystal display device 1. [0016] Compared with the prior art, the sensing layer 24 and the driving layer 26 are respectively printed on both sides of the second polarizing layer 25 of the touch liquid crystal display device i of the present invention, and the first polarizing layer 25 is formed as an insulating layer. The plurality of stealing capacitors are used to implement the touch function. The touch liquid crystal display device 1 does not require an additional touch panel, and the step of re-manufacturing the insulating layer necessary for the touch panel is omitted. 096147871, thereby, the manufacturing cost is low. 'Thin thickness, light weight Form No. A0101 Page 6 / 14 pages is good for the touch liquid 1003311368-0 1356330 • * , August 24, 100 revised the replacement of the page display device 1 thin and light development. At the same time, since the components such as the touch panel and the adhesive tape are not used, and the defects such as light absorption, refraction, reflection, and interference are effectively reduced, the overall liquid transmittance of the touch liquid crystal display device 1 is high and the display effect is good. 3 is a schematic cross-sectional view showing a second embodiment of the touch liquid crystal display device of the present invention. The touch liquid crystal display device 2 has substantially the same structure as the touch liquid crystal display device 1 of the first embodiment. The main difference is that the touch liquid crystal display device 2 includes two flexible circuit boards 38, and the flexible circuit board 38 The driving layer 36 and the sensing layer 34 are electrically connected, respectively. The touch liquid crystal display device 2 can realize the connection of the sensing layer 34 to the other side of the second polarizing layer 35 without providing a via hole. 4 is a schematic cross-sectional view showing a third embodiment of the touch liquid crystal display device of the present invention. The touch liquid crystal display device 3 has substantially the same structure as the touch liquid crystal display device 1 of the first embodiment, and the main difference is that the touch liquid crystal display device 3 includes a "Υ"-shaped flexible circuit board 48. The connecting strips 481 and 482 of the flexible circuit board 48 are respectively connected to the driving layer 46 and the sensing layer 44 for signal transmission, and there is no need to provide a via hole. [0019] However, the touch liquid crystal display device of the present invention is not limited to the above. In an embodiment, the driving layer and the sensing layer are interchangeable, and only the driving layer and the sensing layer may form a coupling capacitor by using the polarizing layer as an insulating layer. [0020] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, and is familiar with 096147871 Form No. 1010101 Page 7/14 pages 1003311368-0 1356330 100 years.08 Equivalent modifications or variations made by persons skilled in the art on the 24th of the month in accordance with the spirit of the present invention shall be covered by the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0021] Fig. 1 is a schematic cross-sectional view showing a first embodiment of a touch liquid crystal display device of the present invention. 2 is a schematic plan view of the touch liquid crystal display device shown in FIG. 1. 3 is a cross-sectional view showing a second embodiment of the touch liquid crystal display device of the present invention. 4 is a cross-sectional view showing a third embodiment of the touch liquid crystal display device of the present invention. [Main component symbol description] [0025] Touch liquid crystal display device: 1, 2, 3 [0026] Capacitive sensing node: 200 [0027] First substrate: 21 [0028] First polarizing layer: 211 [0029] Second substrate: 22 [0030] Liquid crystal layer: 23 [0031] Sensing layer: 24, 34, 44 [0032] Sensing line: 241 [0033] Second polarizing layer: 25, 35 [0034] Via: 253 096147871 Form No. A0101 Page 8 of 14 Page 1003311368-0 100 years. August 24th. Press _ Page 1356330 · .
[0035] 驅動層：26、36、46 [0036] 驅動線：261 [0037] 保護層：27 [0038] 軟性電路板：28、38、48 096147871 表單編號A0101 第9頁/共14頁 1003311368-0[0035] Driver layer: 26, 36, 46 [0036] Drive line: 261 [0037] Protective layer: 27 [0038] Flexible circuit board: 28, 38, 48 096147871 Form number A0101 Page 9 / Total 14 pages 1003311368- 0