1297845 • · 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種具有觸控功能之平面顯示器，且特別 是有關於一種結合電容式觸控面板之有機電致發光顯示器。 【先前技術】 目财觸控面板已經廣泛使詩各種電子儀器，例如個人數 位助理（Personal Digital Assistant, PDA)、smart phone、電子BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat panel display having a touch function, and more particularly to an organic electroluminescence display incorporating a capacitive touch panel. [Prior Art] The purpose of the touch panel has been widely used to make a variety of electronic instruments, such as Personal Digital Assistant (PDA), smart phone, electronic
字典、手錶、電子計算機或手寫板筆記型電腦等攜帶型資訊產 品。將顯示面板結合觸控面板，就不需要額外的鍵盤等輸入裝 置’可以大幅減少裝置的重量和體積。如此才能更符合攜帶型 產品強調的輕薄短小的特性。 以及有機電致發光顯示元件49。在製作方法上，首先分別製 造出一個顯示面板40以及-個觸控面板（t〇uch似咖）2〇，再 將顯示面板40與觸控面板20分別連接於分隔板3〇之兩側。 第1圖是傳統具有觸控功能之平面顯示器之側視圖。請參 照第1圖’傳統具有觸控功能之平面顯示器1〇包括電阻式觸控 面板20、分隔板30以及顯示面板40。電阻式觸控面板2〇包 括第-基板21、第一導電層22、間隔材料層23、第二導電層 24、電極層25以及保護層26。顯示面板4〇包括第二基板^ 然後’塗膠51將填充有乾燥劑52之第三基板53與第二基板 41接合，以形成-密封空間。如此_來，就是__個具有觸控功 能的平面顯示器1 〇。 然而，此種結合方式就失去平面顯示器所欲具備輕薄短小 的特點。由於傳統具有觸控功能之面顯示器係由—個獨立的電 阻式觸控面板與-個顯示面板結合，所以平面顯示器的整體外 TW1964PA 5 1297845 觀會變的又厚又重。再者，此種結合方式同時也降低平面顯示 器整體的顯示品質。因為顯示面板需要先經過第二基板、分隔 板以及整個觸控面板後才能發光，而一般電阻式觸控面板其穿 透度大約為85%，所以整體發光的效率會降低，顯示的亮度就 會減少，進而影響顯示面板的壽命和品質。進一步地說，傳統 具有觸控功能之平面顯示器難以兼顧顯示品質與觸控性能。由 於光需要穿透不同賴層，所时有色偏和色散的情形，造成 顯示品質降低。而顯示面板必須穿透觸控面板，所以觸控面板 的電極層只能選擇高穿透度的材料，而一般較佳的導體均是穿 透性差的材質，所以在此也會降低觸控性面板的顯示品質。 【發明内容】 有鑑於此，本發明的目的就是在提供一種具有觸控功能之 平面顯示器及其製造方法，在觸抑而社此二士， 一 ^仕觸控面板背面直接形成有機電致 發光顯示元件’在觸控面板與有機電致發光元件之間僅僅以一 絕緣層隔開。如此—來，具有觸控功能之平面顯示器之厚度和 重量係可大幅度降低，並可同昧I3 w i j N呀兼顧顯不器之顯示品質與觸控Portable information products such as dictionaries, watches, computers, or tablet notebooks. By combining the display panel with the touch panel, an additional input device such as a keyboard is not required, which can greatly reduce the weight and volume of the device. In this way, it is more in line with the light, thin and short features that the portable product emphasizes. And an organic electroluminescent display element 49. In the manufacturing method, a display panel 40 and a touch panel (2) are respectively fabricated, and then the display panel 40 and the touch panel 20 are respectively connected to the sides of the partition panel 3 . Figure 1 is a side view of a conventional flat panel display with touch function. Referring to FIG. 1 'the conventional touch display panel 1 includes a resistive touch panel 20, a partition 30, and a display panel 40. The resistive touch panel 2 includes a first substrate 21, a first conductive layer 22, a spacer material layer 23, a second conductive layer 24, an electrode layer 25, and a protective layer 26. The display panel 4A includes a second substrate. Then, the adhesive 51 bonds the third substrate 53 filled with the desiccant 52 to the second substrate 41 to form a sealed space. So, it is __ a flat panel display with touch function. However, this combination loses the light, short, and short features of a flat panel display. Since the traditional touch-enabled surface display is combined with a separate resistive touch panel and a display panel, the overall appearance of the flat display is TW1964PA 5 1297845, which is thick and heavy. Moreover, this combination also reduces the overall display quality of the flat panel display. Because the display panel needs to pass through the second substrate, the partition plate and the entire touch panel to emit light, and the general resistive touch panel has a penetration of about 85%, the overall luminous efficiency is lowered, and the brightness of the display is reduced. Will reduce, which in turn affects the life and quality of the display panel. Further, the conventional flat panel display with touch function is difficult to achieve both display quality and touch performance. Since the light needs to penetrate different layers, there are cases of color shift and dispersion, resulting in a decrease in display quality. The display panel must penetrate the touch panel, so the electrode layer of the touch panel can only select a material with high penetration, and generally the better conductor is a poorly penetrating material, so the touch property is also reduced here. The display quality of the panel. SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a flat display with touch function and a manufacturing method thereof, and to form an organic electroluminescence directly on the back side of a touch panel. The display element 'is separated only by an insulating layer between the touch panel and the organic electroluminescent element. In this way, the thickness and weight of the flat panel display with touch function can be greatly reduced, and the display quality and touch of the display device can be compared with the I3 w i j N
面板之觸控性能。 根據本發明的目的，提出_絲也二此一 捉種平面顯示器包括第一基板、 第一導電層、電極層第一導電屉 守罨層、絶緣層以及有機電致發光顯 示元件。第一導電層，係形成於坌 ^ ^ 士 丨/双於第一基板之第一表面，電極層 形成於第一導電層上。第二導雷馬在〃 导電層係形成於第一基板之第二表 面，絕緣層係形成於第二導雷厗夕主 尾層之表面，有機電致發光顯示元 件係形成於絕緣層。 根據本發明的目的，提出_ 的形成方法’包括：提供一第_ 種具有觸控功能之平面顯示器 基板；於第一基板之第一表面Touch performance of the panel. In accordance with the purpose of the present invention, it is proposed that the flat panel display includes a first substrate, a first conductive layer, an electrode layer, a first conductive pad layer, an insulating layer, and an organic electroluminescent display element. The first conductive layer is formed on the first surface of the first substrate, and the electrode layer is formed on the first conductive layer. The second conductive laser is formed on the second surface of the first substrate, and the insulating layer is formed on the surface of the second guiding tail layer, and the organic electroluminescent display element is formed on the insulating layer. According to an object of the present invention, a method for forming a method includes: providing a first type of flat display substrate having a touch function; and a first surface of the first substrate
TW1964PA 6 1297845 、第導電層’於第一基板之第二表面形成一第二導電 =形成一電極層於第一導電層；形成一絕緣層於第二導電層； 形成一有機電致發光元件於絕緣層。 為讓本發明之上述目的、特徵、和優點能更明顯易懂，下 文特舉一較佳實施例，並配合所附圖式，作詳細說明如下： 【實施方式】 ^本發明之之主要構想，係在電容式觸控面板之表面上直接TW1964PA 6 1297845, the conductive layer 'forming a second conductive layer on the second surface of the first substrate = forming an electrode layer on the first conductive layer; forming an insulating layer on the second conductive layer; forming an organic electroluminescent element Insulation. The above described objects, features and advantages of the present invention will become more apparent from the following description. , directly on the surface of the capacitive touch panel
形成有機電致發光顯示元件，且兩者間僅僅以一絕緣層隔開。 可降低平面顯示器之厚度和重量，並兼顧顯示器之顯示品質與 觸控面板之觸控性能。 言。本發明之平面顯示器，包括第一基板、第一導電層、第二 導電層、電極層、絕緣層以及有機電致發光顯示元件。第一導 電層係形成於第-基板之第—表面，電極層係形成於第一導電 層上。第—導電層係形成於第—基板之第二表面，絕緣層係形 成於第二導電層之表面，有機電致發光顯示元件係形成於絕緣 層。以下係舉―較佳實施例作詳細說明，此-較佳實施例僅為 本發明之發明精神下的—種實施方式，並不會對本 護範圍進行限縮。 # 第2圖，其緣示依照本發明一較佳實施例之平面顯 示器的= 22、第-¥電層223、電極層以、保護層奶、第 221、絕緣層230以及有機電致發光顯示元件。 电曰 第土板222例如疋一玻璃基板或一透明塑膠基板。一 導電層223係形成於第—基板222之第_表面 形成於第-導電層223上。較佳 曰24係 罕乂住们疋電極層係由一透明電極An organic electroluminescent display element is formed with only one insulating layer separated therebetween. It can reduce the thickness and weight of the flat panel display, and take into account the display quality of the display and the touch performance of the touch panel. Words. The flat panel display of the present invention comprises a first substrate, a first conductive layer, a second conductive layer, an electrode layer, an insulating layer, and an organic electroluminescence display element. The first conductive layer is formed on the first surface of the first substrate, and the electrode layer is formed on the first conductive layer. The first conductive layer is formed on the second surface of the first substrate, the insulating layer is formed on the surface of the second conductive layer, and the organic electroluminescent display element is formed on the insulating layer. The following is a detailed description of the preferred embodiments, which are merely exemplary embodiments of the present invention and are not intended to limit the scope of the invention. FIG. 2 is a view showing a flat panel display, a second layer, a second layer, an electrode layer 223, an electrode layer, a protective layer milk, a second layer 221, an insulating layer 230, and an organic electroluminescence display according to a preferred embodiment of the present invention. element. The electric earth plate 222 is, for example, a glass substrate or a transparent plastic substrate. A conductive layer 223 is formed on the first surface of the first substrate 222 and formed on the first conductive layer 223. Preferably, the 曰24 series is a rare electrode.
TW1964PA 1297845 . 材料所組成。保護層225係形成於電極層224上。第二導電層 221係形成於第一基板222之第二表面。藉此，第二導電層 221、第一基板222、第一導電層223、電極層224以及保護層 225係構成一電容式觸控面板220。在一般狀況下，第一基板 表面具有第一導電層與第二導電層，並由四角提供電壓在第一 基板表面形成均勻的電場。當手指等導電體碰觸保護層上任一 點時，在接觸點上電場會與導電體產生電位變化，這時與周圍 的電容耦合可以讀到變化區域的座標，再利用PS2、RS-232 或USB等介面傳回作業系統，將所得到的相對位置經由CPU • 在LCD面板上的相對應位置作出適當的動作反應。 絕緣層230係形成於第二導電層221之表面，用以隔絕觸 控面板220與有機電致發光元件之間的電性干擾。 .有機電致發光顯示元件係可以主動式有機電致發光顯示元 件，或是被動式有機電致發光顯示元件。以下係以一種被動式 有機電致發光顯示元件240為例作說明。有機電致發光顯示元 件240係形成於絕緣層230。有機電致發光顯示元件240包括 陽極242、電洞傳輸層243、有機發光層244、電子傳輸層245 φ 以及陰極246。陽極242係形成於絕緣層230,電洞傳輸層243 係形成於陽極242,有機發光層244係形成於電洞傳輸層243, 電子傳輸層245係形成於有機發光層244，一陰極246係形成 於電子傳輸層245。 其中，有機發光層係由高分子材料所組成。或者，有機發 光層係以小分子材料所組成。 平面顯示器200更包括第二基板253、乾燥劑252以及黏 著層251。第二基板253例如是玻璃基板或一透明塑膠基板。 乾燥劑252係設置於第二基板253，黏著層251連接第二基板 TW1964PA 8 1297845 253以及第一基板222。藉此，第一基板222、第二基板253 以及黏著層253係形成一密閉空間。 第3圖繪示依照本發明之一較佳實施例之平面顯示器之形 成方法。本實施例之具有觸控面板之平面顯示器的形成方法， 包括下列步驟S201〜S205。請同時參照第2及3圖，在步驟 S201中，提供一第一基板222。在步驟S202中，於第一基板 222之第一表面形成第一導電層223，於第一基板222之第二 表面形成第二導電層221,例如是用電鍍的方式形成第一導電 層223與第二導電層221。在步驟S203中，形成電極層224 ® 於第一導電層223，之後，較佳的是形成保護層225於電極層 224。在步驟S204中，形成絕緣層230於第二導電層221。在 步驟S205中，形成有機電致發光元件240於絕緣層230。 再者，步驟S205之詳細步驟描述如下。形成一陽極242 於絕緣層230 ;形成一電洞傳輸層243於陽極242 ;形成一有 機發光層244於電洞傳輸層243 ;形成一電子傳輸層245於有 機發光層244 ;形成一陰極246於電子傳輸層245。其中，形 成一有機發光層244的步驟係可以是旋轉塗佈（Spin coating) • 一高分子材料、印刷一高分子材料、或是蒸鑛一小分子材料。 在步驟S205之後，係進行平面顯示器200之封裝。首先， 提供第二基板253。接著，塗佈一黏著劑251於第二基板253， 例如是於第二基板253之四周塗膠，並且設置一乾燥劑252於 第二基板253。最後，對組第一基板222與第二基板253。藉 此，完成本實施例之具有觸控功能之平面顯示器200。 本發明上述實施例所揭露之平面顯示器及其製造方法，係 在觸控面板之表面上直接形成有機電致發光顯示元件，且兩者 間僅僅以一絕緣層隔開。相較於傳統結構，省略了最厚的基板 TW1964PA 9 1297845 •與分隔板，本實施例可大幅度降低平面顯示器之厚户和重㈢ 再者，相較於傳統結構，本實施例之有機電致發光顯示元=產 生之光線僅需經過絕緣層與觸控面板，再加上電容式面板 其穿透度大約為95%，所以整體發光的效率會上昇，顯=的哀 度就會增加，進而延長顯示面板的壽命和品質。進一步地說， 由於提高了光穿透率，降低色偏和色散的情形，選擇觸控面板 的電極層時不再受限於高穿透度但導電性差的材料，因此，可 兼顧顯示器之顯示品質與觸控面板之觸控性能。 0 纟示上所述，雖然本發明已以一較佳實施例揭露如上，然其 並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之 精神和範圍内，當可作各種之更動與潤飾，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。TW1964PA 1297845 . Composition of materials. A protective layer 225 is formed on the electrode layer 224. The second conductive layer 221 is formed on the second surface of the first substrate 222. Thereby, the second conductive layer 221, the first substrate 222, the first conductive layer 223, the electrode layer 224, and the protective layer 225 constitute a capacitive touch panel 220. Under normal conditions, the first substrate surface has a first conductive layer and a second conductive layer, and a voltage is supplied from the four corners to form a uniform electric field on the surface of the first substrate. When a conductor such as a finger touches any point on the protective layer, the electric field changes with the electric potential at the contact point. At this time, the coupling with the surrounding capacitance can read the coordinates of the changed area, and then use PS2, RS-232 or USB. The interface is passed back to the operating system and the resulting relative position is reacted via the CPU • in the corresponding position on the LCD panel. An insulating layer 230 is formed on the surface of the second conductive layer 221 to isolate electrical interference between the touch panel 220 and the organic electroluminescent element. The organic electroluminescent display element is an active organic electroluminescence display element or a passive organic electroluminescence display element. Hereinafter, a passive organic electroluminescence display element 240 will be described as an example. The organic electroluminescence display element 240 is formed on the insulating layer 230. The organic electroluminescent display element 240 includes an anode 242, a hole transport layer 243, an organic light-emitting layer 244, an electron transport layer 245 φ, and a cathode 246. The anode 242 is formed on the insulating layer 230, the hole transport layer 243 is formed on the anode 242, the organic light-emitting layer 244 is formed on the hole transport layer 243, the electron transport layer 245 is formed on the organic light-emitting layer 244, and a cathode 246 is formed. At the electron transport layer 245. The organic light-emitting layer is composed of a polymer material. Alternatively, the organic light-emitting layer is composed of a small molecular material. The flat panel display 200 further includes a second substrate 253, a desiccant 252, and an adhesive layer 251. The second substrate 253 is, for example, a glass substrate or a transparent plastic substrate. The desiccant 252 is disposed on the second substrate 253, and the adhesive layer 251 is connected to the second substrate TW1964PA 8 1297845 253 and the first substrate 222. Thereby, the first substrate 222, the second substrate 253, and the adhesive layer 253 form a sealed space. Figure 3 is a diagram showing a method of forming a flat panel display in accordance with a preferred embodiment of the present invention. The method for forming a flat panel display with a touch panel of the present embodiment includes the following steps S201 to S205. Referring to Figures 2 and 3 simultaneously, in step S201, a first substrate 222 is provided. In the step S202, the first conductive layer 223 is formed on the first surface of the first substrate 222, and the second conductive layer 221 is formed on the second surface of the first substrate 222. For example, the first conductive layer 223 is formed by electroplating. The second conductive layer 221 . In step S203, the electrode layer 224 is formed on the first conductive layer 223, and thereafter, the protective layer 225 is formed on the electrode layer 224. In step S204, an insulating layer 230 is formed on the second conductive layer 221. In step S205, the organic electroluminescent element 240 is formed on the insulating layer 230. Furthermore, the detailed steps of step S205 are described below. An anode 242 is formed on the insulating layer 230; a hole transport layer 243 is formed on the anode 242; an organic light-emitting layer 244 is formed on the hole transport layer 243; an electron transport layer 245 is formed on the organic light-emitting layer 244; and a cathode 246 is formed. Electron transport layer 245. The step of forming an organic light-emitting layer 244 may be spin coating, a polymer material, a polymer material, or a small molecule of a vapor. After step S205, the package of the flat panel display 200 is performed. First, a second substrate 253 is provided. Then, an adhesive 251 is applied to the second substrate 253, for example, glued around the second substrate 253, and a desiccant 252 is disposed on the second substrate 253. Finally, the first substrate 222 and the second substrate 253 are paired. Thereby, the flat display 200 with touch function of the embodiment is completed. The flat panel display and the method of fabricating the same according to the above embodiments of the present invention directly form an organic electroluminescent display element on the surface of the touch panel, and are separated by only one insulating layer. Compared with the conventional structure, the thickest substrate TW1964PA 9 1297845 is omitted. • With the partition plate, this embodiment can greatly reduce the thickness and weight of the flat display. (3) Furthermore, compared with the conventional structure, this embodiment has Electroluminescence display element=The generated light only needs to pass through the insulating layer and the touch panel, and the capacitive panel has a penetration of about 95%, so the overall luminous efficiency will increase, and the sorrow will increase. , thereby extending the life and quality of the display panel. Further, since the light transmittance and the color shift and the dispersion are lowered, the electrode layer of the touch panel is no longer limited to a material having high transparency but poor conductivity, and therefore, the display of the display can be balanced. Quality and touch performance of the touch panel. The present invention has been described above with reference to a preferred embodiment. However, it is not intended to limit the present invention, and various modifications may be made without departing from the spirit and scope of the invention. The scope of protection of the present invention is defined by the scope of the appended claims.
TW1964PA 10 1297845 【圖式簡單說明】TW1964PA 10 1297845 [Simplified illustration]
圖繪示依照傳統具有觸控功能之平 面顯示器之側視 第2圖繪示依照本發明一較佳實施例之平 圖。 个面顯示器的側視 第3圖繪示依照本發明之一較佳實施例之平面顯示器之形 成方法。 【主要元件符號說明】 1 〇 :傳統平面顯示器 20 :電容式觸控面板 21 :第一基板 22 :第一導電層 23 :間隔材料層 24 :第二導電層 25 :電極層 26 :保護層 30 :分隔板 40 :顯示面板 41 :第二基板 49 :有機電致發光顯示元件 51 :膠 52 :乾燥劑 53 :第三基板 20〇 :平面顯示器 220 :電容式觸控面板 TW1964PA 1 ⑨ 1297845 221 ： 第二導電層 222 ： 第一基板 223 ： 第一導電層 224 ： 電極層 225 ： 保護層 230 ： 絕緣層 240 ： 有機電致發光顯示元件 242 ： 陽極 243 ： 電洞傳輸層 244 ： 有機發光層 245 ： 電子傳輸層 246 : 陰極 251 ： 黏著層 252 ： 乾燥劑 253 ： 第二基板 TW1964PA 12The figure shows a side view of a conventional flat display having a touch function. Fig. 2 is a plan view showing a preferred embodiment of the present invention. Side View of Facet Display FIG. 3 illustrates a method of forming a flat panel display in accordance with a preferred embodiment of the present invention. [Main component symbol description] 1 〇: conventional flat panel display 20: capacitive touch panel 21: first substrate 22: first conductive layer 23: spacer material layer 24: second conductive layer 25: electrode layer 26: protective layer 30 : partition plate 40 : display panel 41 : second substrate 49 : organic electroluminescence display element 51 : glue 52 : desiccant 53 : third substrate 20 〇 : flat display 220 : capacitive touch panel TW1964PA 1 9 1297845 221 : Second conductive layer 222 : First substrate 223 : First conductive layer 224 : Electrode layer 225 : Protective layer 230 : Insulating layer 240 : Organic electroluminescent display element 242 : Anode 243 : Hole transport layer 244 : Organic light-emitting layer 245 : Electron transport layer 246 : Cathode 251 : Adhesive layer 252 : Desiccant 253 : Second substrate TW1964PA 12