200807453200807453
V 九、發明說明： 【發明所屬之技術領域】 本發明提供一種觸控式顯示單元，尤指一種結合觸控式 面板與平面顯示面板之元件而厚度輕薄的觸控式顯示單元。 • . · · . ·'. 【先前技術】 -· . ·- . · · 在現今各式消費性電子產品市場中，個人數位助理 _ ( PDA )、行動電話（mobile Phone )及筆記型電腦 (notebook)等可攜式電子產品皆已廣泛使用具有觸控式 面板（touch panel)作為其資料溝通的界面工具。由於目 前電子產品的設計皆以輕、薄、短、小為方向’因此在產品 上無足夠空間容納如鍵盤、滑鼠等傳統輸入裝置，尤其在 講求人性化設計的平板電腦需求的帶動下，搭配觸控式面 板的顯示裝置已逐漸成為各式電子產品的關鍵零組件之一。 現今觸控式面板的技術大致可分電阻式、電容式、超音 波式、光學式等等，其中電阻式觸控面板由於成本較低、 面板厚度較薄，最為廣泛運用。請參考第1圖，第1圖為 習知一電阻式觸控面板10與一平面顯示面板22的示意 圖。如圖一所示，電阻式觸控面板10係藉由一黏膠34而 貼附設置於包含有機發光元件的平面顯示面板22上，其中 ^ 平面顯示面板22由上而下依序包含有上基板24、陽極32、 - 有機發光層30、陰極28及下基板26。習知電阻式觸控面 200807453 * * t . ^板10主要包含有一塑夢薄膜或一玻璃基底12、一下透明 導電薄膜14、一上透明導電薄膜16、複數個以陣列排列分 布於透明導電薄膜之間的間隔層（dot spacer，圖未示）以 及一材料為聚乙細對笨二曱酸醋（polyethylene terephthalate，PET)之膜層20,其中上透明導電薄膜16 與下透明導電薄膜14係以一黏膠18所黏貼固定。習知電 阻式觸控面板10的操作原理係當以手指、筆或其他輸入工 _具在PET膜層20上施加壓力書寫資料時，上透明導電薄 膜16與下透明導電薄膜14會透過間隔層導通而產生相對 應之電壓，進而將受壓點軌跡之座標值經由佈設於透明導 電薄膜下方的導線傳送至一中央處理器，再將訊號輸入至 顯示面板（圖未示）。然而，傳統電阻式觸控面板1〇由於 本身包含有較多元件之堆疊，例如玻璃基底12與一膜層 20，因此有透光度較低之缺點。 另-方面’電容式觸控面板為更早發展之觸控式面板技 術’其门心明參看第2圖。第2圖為習知一電容式觸控面 板40與平面顯示面板22的示％:圖，其㈣容式觸控面板 40係藉由_46而固定於平面顯示面板^之上表面，且 平面顯示面板22之結構相同·於第1圖，為一有機發光顯示 面板。電容式觸控面板40包含女 _ α ^ ^ ^ r ^ 措 § 3有一透明玻璃42以及一導 電薄膜44。操作時，藉由人辦ώ 發與電容式觸控面板40接觸， " 使人體内的靜電流入地面而彦斗咖^ _ 座生微弱電流通過，再藉由電 200807453V IX. Description of the Invention: [Technical Field] The present invention provides a touch display unit, and more particularly, a touch display unit that combines the components of a touch panel and a flat display panel with a thin thickness. • . . . . . . . . . . . . . . . . In the current consumer electronics market, personal digital assistants _ (PDAs), mobile phones (mobile phones) and notebook computers ( Portable electronic products such as notebooks have been widely used with touch panels as an interface tool for data communication. Since the design of electronic products is currently in the direction of light, thin, short and small, there is not enough space on the product to accommodate traditional input devices such as keyboards and mice, especially driven by the demand for tablet PCs with humanized design. Display devices with touch panels have gradually become one of the key components of various electronic products. Today's touch panel technology can be roughly divided into resistive, capacitive, ultrasonic, optical, etc. Resistive touch panels are most widely used due to their lower cost and thinner panel thickness. Please refer to FIG. 1. FIG. 1 is a schematic view of a conventional resistive touch panel 10 and a flat display panel 22. As shown in FIG. 1 , the resistive touch panel 10 is attached to a flat display panel 22 including an organic light emitting device by an adhesive 34. The planar display panel 22 includes the top and bottom layers. The substrate 24, the anode 32, the organic light-emitting layer 30, the cathode 28, and the lower substrate 26. The conventional resistive touch surface 200807453 * * t . The board 10 mainly comprises a plastic dream film or a glass substrate 12, a lower transparent conductive film 14, an upper transparent conductive film 16, and a plurality of arrays arranged in a transparent conductive film. A spacer layer (not shown) and a film 20 of polyethylene terephthalate (PET), wherein the upper transparent conductive film 16 and the lower transparent conductive film 14 are Adhesively fixed with a glue 18. The operation principle of the conventional resistive touch panel 10 is that when a finger, pen or other input tool is used to apply pressure writing material on the PET film layer 20, the upper transparent conductive film 16 and the lower transparent conductive film 14 pass through the spacer layer. The corresponding voltage is generated, and the coordinate value of the track of the pressure point is transmitted to a central processing unit via a wire disposed under the transparent conductive film, and then the signal is input to the display panel (not shown). However, the conventional resistive touch panel 1 has the disadvantage of low transmittance because it itself contains a stack of more components, such as the glass substrate 12 and a film layer 20. Another aspect is that the capacitive touch panel is an earlier developed touch panel technology. FIG. 2 is a view showing a conventional capacitive touch panel 40 and a flat display panel 22, wherein the capacitive touch panel 40 is fixed to the upper surface of the flat display panel by _46, and is planar. The display panel 22 has the same structure. In Fig. 1, it is an organic light emitting display panel. The capacitive touch panel 40 includes a female _α ^ ^ ^ r ^ § 3 having a transparent glass 42 and a conductive film 44. During operation, the human body makes contact with the capacitive touch panel 40, " causes static electricity in the human body to flow into the ground and the Yandou coffee ^ _ seat generates a weak current through, and then by electricity 200807453
IT 極依據電流值的變化而算出接觸位置。 由上述可知，不論是電容式或電阻式觸控面板，在與平 面顯示面板結合時都具有一定的厚度，又由於目前各式電 子資訊產品皆須朝向輕薄短小來設計研發，因此，如何提 供具有更簡單而薄型化的觸控式顯示裝置，仍為業界持績 不斯研究之課題。 【發明内容】 本發明之目的在於提供一種具有簡化結構之觸控式顯 示單元，以解決習知觸控式面板與平面顯示面器兩者結合 之結構厚度較大的問題。 根據本發明之申請專利範圍，本發明提供一種觸控式顯The IT pole calculates the contact position based on the change in current value. It can be seen from the above that no matter whether it is a capacitive or resistive touch panel, it has a certain thickness when combined with a flat display panel, and since various electronic information products are required to be designed and developed toward a light and thin, therefore, how to provide The simpler and thinner touch display device is still the subject of research in the industry. SUMMARY OF THE INVENTION It is an object of the present invention to provide a touch display unit having a simplified structure to solve the problem of a large structural thickness of a combination of a conventional touch panel and a flat display panel. According to the patent application scope of the present invention, the present invention provides a touch display
示單元（touch panel display unit )，其包含有一平面顯示面 板以及一觸控式面板。其中，平面顯示面板，包含有一上 透明基板，而觸控式面板包含有該上透明基板與一第一透 明導電薄膜，且該透明導電薄膜係直接設於該上透明基板 之表面。 由於本發明之觸控式顯示單元係直接利用平面顯示面 . 板表面的上透明基板作為觸控式面板的基底，因此可以大 幅減少習知觸控式面板的元件，而有效降低整體觸控式顯 200807453 示單元的厚度與製造成本。 【實施方式】 请參考第3圖’第3圖為本發明觸控式顯示單元之第一 實施例的示意圖。觸控式顯示單元100包含有一平面顯示 面板102以及-電阻式觸控面板1〇4。平面顯示面板1〇2 為-有機顯示面板，因此其包含_上透明基板⑽與一下 基板則，其中透明基板廳之材料可為玻璃或石英等透 明材料，而下基板108之材科視情況可為透明或不透明， 例如為玻璃、石英或金屬等材料。此外，上透明基板的下 表面設有-透明的陽極110’其材料可為氧化銦錫（滅雅 tin oxide，ITO)’而下基板之上表面設有一陰極114，其材 料可為氧化銦錫或金屬材料，陰極ι14與陽極之間另 設有有機發光層112，用來發光產生影像。 電阻式觸控面板104包含有一第一透明導電薄膜116， 直接δ又於上透明基板106上表面、一第二透明導電薄膜120 藉由黏膠118而黏貼於第一透明導電薄膜丨〗6上，以及一 膜層122，設於第二透明導電薄膜12〇之上。第一透明導 電薄膜116之材料可為氧化銦錫或氧化銦鋅（indium zinc oxide，IZO)等透明導電材料，其製作方式可以上述透明 一電材料直接塗佈於上透明基板1 〇6之上表面。另一方 面，第一透明導電薄膜120亦可為氧化銦錫或氧化銦鋅等 200807453 ‘塗佈材料’直接塗佈於膜層i22之下表面。在本實施例中， 平面顯示面板102的上透明基板1〇6係甩來取代習知電阻 式觸控面板的玻璃基底或塑膠薄膜，因此上透明基板1〇6 亦包含於電阻式觸控面板104内，且觸控式顯示單元ι〇〇 的整體厚度能較習知技術減少第1圖中玻璃基底12與黏膠 34之尽度。再者，由於本發明觸控式顯示單元1〇〇較習知 _技術減少了玻璃基底12與黏膠34等材料，因此可以有效 提高電阻式觸控面板104的透光度，而使觸控式顯示單元 100有較佳的顯示效果Ό 請看考第4圖，第4圖為本發明觸控式顯示單元之第二 實施例的示意圖。第4圖所示之觸控式顯示單元2〇〇包含 有第3圖所示之有機發光平面顯示面板102以及一電容式 觸控面板202。電容式觸控面板202包含有平面顯示面板 _ 1〇2的上透明基板106以及一第一透明導電薄膜2〇4，塗佈 於上透明基板106表面，且第一透明導電薄膜204電連接 於一控制器（圖未示），藉由控制器上的電極提供電荷給第 一透明導電薄膜204，以供電容式觸控面板202之操作使 用。本實施例中，第一透明導電薄膜204之材料亦可為氧 化銦錫、氧化銦鋅或氧化銻錫（antimony-tin oxide，ΑΤΟ) 專透明導電材料。相較於第？圖所示之習知技術，本實施 例結構係以上透明基板106取代習知技術之透明玻璃42， 因此可以省略透明玻璃42與黏膠46等材料，大幅減少電 200807453 容式觸控面板202的厚度以及材料，可以減少製作成本， 並進一步提升電容式觸控面板202的透光度。 值得注意的是，本發明觸控式顯示單元之平面顯示面板 並不限於上述有機顯示面板，亦可為包含液晶顯示器或其 他具有上透明基板之平面顯示器。請參考第5圖，第5圖 為本發明觸控式顯示單元之第三實施例的示意圖。本發明 觸控式顯不早元300包含有一液晶顯不面板302以及一電 阻式觸控面板304。液晶顯示面板302係為一偏光材料内 藏之超扭曲向列（Super Twisted Nematic，STN)型或薄膜 電晶體（thin film transistor，TFT )液晶顯示面板，其包含 有一上透明基板306、一下基板308平行設置於上透明基 板306之下，上透明基板306的内表面依序設有一彩色渡 光層（color filter) 316以及一上偏光層314，以沉積或塗 佈之方式設於上透明基板306表面，而下基板3〇8之上表 面亦設有一下偏光層310,液晶層312則設於上偏光層314 與下偏光層310之間。 電阻式觸控面板304包含有上透明基板306、一第一透 明導電薄膜318直接設於上透明基板306之上表面、一第 一透明導電薄膜322藉由黏.膠320而固定於第一透明導電 溥膜318之上以及一膜層324,設於第二透明導電薄膜322 之上。類似於上述本發明之第一實施例，電阻式觸控面板 200807453 304較習知技術減少了電阻式觸控面板之底面玻璃基底以 及用來黏貼玻璃基底之黏膠層，因此可以降低整體結構厚 度與成本，並大幅提高電阻式觸控面板304的透光度。 請參考第6圖，第6圖為本發明觸控式顯示單元之第四 實施例的示意圖。如第6圖所示，本發明觸控式顯示單元 400包含有一第5圖所示之液晶平面顯示面板302以及一 電各式觸控面板402。液晶平面顯不面板302包含有上透 明基板306、下基板308以及設於其間之彩色濾光層316、 上偏光片3丨4、液晶分丰層3Π以及下偏光層310。電容式 觸控面板402則包含有上透明基板306以及一透明導電薄 膜404 ’塗佈或沉積設置於上透明基板3〇6之上表面，且 電谷式觸控面板402另包含一控制器（圖未示），電連接於 透明導電薄膜404，以執行電容式觸控面板4〇2之運作。 在本發明的其他實施例中，亦可於平面顯示面板與觸控 式面板之間另加上一防電子訊號干擾處理層（Shielded Layer ) ’例如在平面顯示面板的上透明基板上表面先形成 -防電子訊號干擾處理層’再於其上塗佈觸控式面板的透 明導電薄膜。 • 相知技術，本發_控式顯示料係湘平面顯 ，示面㈣上層透明基板（例如料基板），作為觸控式面板 200807453 的基底，而將透明導電薄膜直接製作於平面顯示面板的上 透明基板表面，使得部分元件可以同時被平面顯示面板與 觸控式面板使用，形成一整體結構簡單的模組單元，因此 * * ' 可以節省習知觸控式面板的黏膠和基底等元件，有效降低 v * * · 厚度及製作成本，進一步亦可以提升觸控式面板的透光度 而改善整體顯示晝面的品質。此外，本發明平面顯示面板 並不限於有機發光顯示面板與液晶顯示面板，其他具有上 *透明基板的平面顯示面板皆可應用於本發明中。 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。 【圖式簡單說明】 第1圖為習知一電阻式觸控面板與一平面顯示面板的示意圖。 0 第2圖為習知一電容式觸控面板與一平面顯示面板的示意圖。 第3圖為本發明觸控式顯示單元之第一實施例的示意圖。 第4圖為本發明觸控式顯示單元之第二實施例的示意圖。 第5圖為本發明觸控式顯示單元之第三實施例的示意圖。 第6圖為本發明觸控式顯示單元之第四實施例的示意圖。 【主要元件符號說明】 ^ 10 電阻式觸控面板‘ 12 玻璃基底 ， 14 透明導電薄膜 16 上透明導電薄膜 12 200807453 18 黏膠 22 平面顯示面板 26 下基板 30 有機發光層 34 黏膠 42 透明玻璃 46 黏膠 102 平面顯示面板 106 上透明基板 110 陽極 114 陰極 118 黏膠 124 膜層 202 電容式觸控面板 300 觸控式顯示單元 304 電阻式觸控面板 308 下基板 312 液晶層 316 彩色濾光層 320 黏膠 324 膜層 402 電容式觸控面板 20 膜層 24 上基板 28 陰極 32 陽極 40 電容式觸控面板 44 導電薄膜 100 觸控式顯示單元 104 電阻式觸控面板 108 下基板 112 有機發光層 116 第一透明導電薄膜 120 第二透明導電薄膜 200 觸控式顯示單元 204 第一透明導電薄膜 302 液晶顯不面板 306 上透明基板 310 下偏光層 314 上偏光層 318 第一透明導電薄膜 322 第二透明導電薄膜 400 觸控式顯示單元 404 透明導電薄膜 πA touch panel display unit includes a flat display panel and a touch panel. The flat display panel includes an upper transparent substrate, and the touch panel includes the upper transparent substrate and a first transparent conductive film, and the transparent conductive film is directly disposed on the surface of the upper transparent substrate. Since the touch display unit of the present invention directly utilizes the upper transparent substrate of the surface of the board as the base of the touch panel, the components of the conventional touch panel can be greatly reduced, and the overall touch type can be effectively reduced. Show 200807453 shows the thickness and manufacturing cost of the unit. [Embodiment] Please refer to FIG. 3, which is a schematic view of a first embodiment of a touch display unit of the present invention. The touch display unit 100 includes a flat display panel 102 and a resistive touch panel 1〇4. The flat display panel 1〇2 is an organic display panel, so it comprises an upper transparent substrate (10) and a lower substrate. The transparent substrate chamber may be made of a transparent material such as glass or quartz, and the lower substrate 108 may be viewed as a material. It is transparent or opaque, such as glass, quartz or metal. In addition, the lower surface of the upper transparent substrate is provided with a transparent anode 110' which may be indium tin oxide (ITO) and a cathode 114 is disposed on the upper surface of the lower substrate, and the material thereof may be indium tin oxide. Or a metal material, an organic light-emitting layer 112 is further disposed between the cathode ι14 and the anode for emitting light to generate an image. The resistive touch panel 104 includes a first transparent conductive film 116, which is directly δ on the upper surface of the upper transparent substrate 106, and a second transparent conductive film 120 is adhered to the first transparent conductive film by the adhesive 118. And a film layer 122 disposed on the second transparent conductive film 12A. The material of the first transparent conductive film 116 may be a transparent conductive material such as indium tin oxide or indium zinc oxide (IZO), and the transparent transparent electric material may be directly coated on the upper transparent substrate 1 〇6. surface. On the other hand, the first transparent conductive film 120 may be indium tin oxide or indium zinc oxide, etc. 200807453 'Coating material' is directly applied to the lower surface of the film layer i22. In this embodiment, the upper transparent substrate 1 6 of the flat display panel 102 is replaced by a glass substrate or a plastic film of the conventional resistive touch panel. Therefore, the upper transparent substrate 1 〇 6 is also included in the resistive touch panel. Within 104, the overall thickness of the touch display unit ι can reduce the extent of the glass substrate 12 and the adhesive 34 in FIG. 1 compared to the prior art. In addition, since the touch display unit 1 of the present invention reduces the materials such as the glass substrate 12 and the adhesive 34 by using the conventional technology, the transmittance of the resistive touch panel 104 can be effectively improved, and the touch can be improved. The display unit 100 has a better display effect. Please refer to FIG. 4, which is a schematic view of a second embodiment of the touch display unit of the present invention. The touch display unit 2A shown in FIG. 4 includes the organic light emitting flat display panel 102 shown in FIG. 3 and a capacitive touch panel 202. The capacitive touch panel 202 includes an upper transparent substrate 106 having a flat display panel _ 1 〇 2 and a first transparent conductive film 2 〇 4 coated on the surface of the upper transparent substrate 106, and the first transparent conductive film 204 is electrically connected to A controller (not shown) supplies charge to the first transparent conductive film 204 by electrodes on the controller for operation of the capacitive touch panel 202. In this embodiment, the material of the first transparent conductive film 204 may also be an indium tin oxide, indium zinc oxide or an antimony-tin oxide (ITO) transparent conductive material. Compared to the first? In the conventional technology shown in the figure, the transparent substrate 106 of the present embodiment replaces the transparent glass 42 of the prior art, so that the transparent glass 42 and the adhesive 46 can be omitted, and the capacitive touch panel 202 of the 200807453 is greatly reduced. The thickness and the material can reduce the manufacturing cost and further improve the transmittance of the capacitive touch panel 202. It should be noted that the flat display panel of the touch display unit of the present invention is not limited to the above organic display panel, and may be a flat panel display including a liquid crystal display or other upper transparent substrate. Please refer to FIG. 5, which is a schematic diagram of a third embodiment of the touch display unit of the present invention. The touch-sensitive display element 300 of the present invention comprises a liquid crystal display panel 302 and a resistive touch panel 304. The liquid crystal display panel 302 is a super Twisted Nematic (STN) type or a thin film transistor (TFT) liquid crystal display panel embedded in a polarizing material, and includes an upper transparent substrate 306 and a lower substrate 308. Parallelly disposed under the upper transparent substrate 306, the inner surface of the upper transparent substrate 306 is sequentially provided with a color filter 316 and an upper polarizing layer 314, which are deposited or coated on the upper transparent substrate 306. The upper surface of the lower substrate 3〇8 is also provided with a lower polarizing layer 310, and the liquid crystal layer 312 is disposed between the upper polarizing layer 314 and the lower polarizing layer 310. The resistive touch panel 304 includes an upper transparent substrate 306, a first transparent conductive film 318 is directly disposed on the upper surface of the upper transparent substrate 306, and a first transparent conductive film 322 is fixed to the first transparent layer by the adhesive 320. A conductive film 318 and a film layer 324 are disposed on the second transparent conductive film 322. Similar to the first embodiment of the present invention, the resistive touch panel 200807453 304 reduces the thickness of the overall structure by reducing the bottom glass substrate of the resistive touch panel and the adhesive layer for adhering the glass substrate. With the cost, and greatly improve the transmittance of the resistive touch panel 304. Please refer to FIG. 6. FIG. 6 is a schematic diagram of a fourth embodiment of the touch display unit of the present invention. As shown in FIG. 6, the touch display unit 400 of the present invention comprises a liquid crystal flat display panel 302 shown in FIG. 5 and an electric touch panel 402. The liquid crystal panel display panel 302 includes an upper transparent substrate 306, a lower substrate 308, and a color filter layer 316, an upper polarizer 3丨4, a liquid crystal layer 3Π, and a lower polarizing layer 310. The capacitive touch panel 402 includes an upper transparent substrate 306 and a transparent conductive film 404 'coated or deposited on the upper surface of the upper transparent substrate 3〇6, and the electric valley touch panel 402 further includes a controller ( The figure is not shown) and is electrically connected to the transparent conductive film 404 to perform the operation of the capacitive touch panel 4〇2. In another embodiment of the present invention, an EDED layer may be additionally disposed between the flat display panel and the touch panel. For example, the upper surface of the upper transparent substrate of the flat display panel is formed first. The anti-electronic signal interference processing layer is further coated with a transparent conductive film of the touch panel. • Known technology, the _ control display material is Xiang Xiangxian, the display surface (4) upper transparent substrate (such as the material substrate), as the base of the touch panel 200807453, and the transparent conductive film is directly fabricated on the flat display panel The surface of the transparent substrate enables some components to be used by both the flat display panel and the touch panel to form a module unit with a simple overall structure, so that the components of the conventional touch panel can be saved. Effectively reducing v * * · thickness and manufacturing cost, and further improving the transmittance of the touch panel to improve the quality of the overall display surface. Further, the flat display panel of the present invention is not limited to the organic light emitting display panel and the liquid crystal display panel, and other flat display panels having the upper transparent substrate can be applied to the present invention. 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. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a conventional resistive touch panel and a flat display panel. 0 Fig. 2 is a schematic view of a conventional capacitive touch panel and a flat display panel. FIG. 3 is a schematic diagram of a first embodiment of the touch display unit of the present invention. 4 is a schematic view of a second embodiment of the touch display unit of the present invention. FIG. 5 is a schematic diagram of a third embodiment of the touch display unit of the present invention. FIG. 6 is a schematic view showing a fourth embodiment of the touch display unit of the present invention. [Main component symbol description] ^ 10 Resistive touch panel ' 12 glass substrate, 14 transparent conductive film 16 transparent conductive film 12 200807453 18 Adhesive 22 Flat display panel 26 Lower substrate 30 Organic light-emitting layer 34 Adhesive 42 Transparent glass 46 Adhesive 102 flat display panel 106 upper transparent substrate 110 anode 114 cathode 118 adhesive 124 film layer 202 capacitive touch panel 300 touch display unit 304 resistive touch panel 308 lower substrate 312 liquid crystal layer 316 color filter layer 320 Adhesive 324 film 402 capacitive touch panel 20 film layer 24 upper substrate 28 cathode 32 anode 40 capacitive touch panel 44 conductive film 100 touch display unit 104 resistive touch panel 108 lower substrate 112 organic light emitting layer 116 First transparent conductive film 120 second transparent conductive film 200 touch display unit 204 first transparent conductive film 302 liquid crystal display panel 306 upper transparent substrate 310 lower polarizing layer 314 upper polarizing layer 318 first transparent conductive film 322 second transparent Conductive film 400 touch display unit 404 transparent Thin film π