201219895 六、發明說明： 【發明所屬之技術領域】 本發明有關於一種液晶顯示裝置，尤指一種具可挽性印刷 電路板之連接端子斷裂防護的液晶顯示裝置。 【先前技術】 凊參考第1圖所示，一般的可捷性印刷電路板⑺e邊e pnnted circuit board)主要是於—絕緣的可撓基材9q的表面設 置銅fl線路9卜再於㈣祕91的表面覆蓋—層絕緣的保護 層92,僅裸露該_線路91㈣的部分以做為與其他電子組 件電性連接的連接端子91〇、930。 進一步參考第2圖所示，前述可撓性印刷電路板應用於一 液晶顯示裝置時’其-端的連接端子91()可壓合於該液晶顯示 裝置之一顯示面板80側邊，使該銅箱線路91得以電性連接該 顯示面板8G位於側邊的電連接端。該可撓性印刷電路板另端 的連接端子則可錄連接-㈣電路板，藉此使該可挽性 印刷電路板可做為該控制電路板與該顯示面板8〇兩者之間電 子信號傳輸的橋樑。 然而，現今前述液晶顯示裝置在組裝過程中，該可撓性印 刷電路板在該連接端子910處的銅箔線路91往往會有斷裂的 情形產生，其斷裂情形可能是發生於外引腳接合製程（〇uter Lead Bonding，OLB)、前述控制電路板晃動或受到作業人員推 拉而擠壓到該可撓性印刷電路板的連接端子部分、信賴性試驗 時刚述控制電路板熱漲_冷縮導致該可撓性印刷電路板變形、檢 驗作業時作業人員按壓該可撓性印刷電路板位置等等。 201219895 &述種種情形造成該可撓性印刷電路板在該連接端子910 處的銅4線路91產生斷裂的主要原因在於：該可換性印刷電 路板的連接端子910係固定於前述顯示面板8〇(或控制電路板） 側邊，該可撓性印刷電路板受到外力而彎折時，將會以該顯示 -面板8〇之側邊邊緣做為彎折點，由於該保護層92相對於可撓 基材90在接近該連接端子91()的位置具有—斷層當該可挽 性P刷電路板受外力影響而以該顯示面板8〇侧邊為彎折點彎 折時該可撓基材90與保護層92冑會對該連接端+ 91〇處的 鲁銅箱線路91形成擠壓或拉扯，經過多次彎折後即會造成該銅 箔線路91金屬疲勞而在連接端子910處形成斷裂。 故有必要提供-種具可撓性印刷電路板之連接端子斷裂 防護的液晶顯示裝置，以解決習知技術所存在的問題。 【發明内容】 有鑒於S知技術的缺點，本發明之主要目的在於提供一種 可撓ί±印刷電路板之連接端子斷裂防護的液晶顯示裝置，其 •藉由在可撓性印刷電路板與顯示面板之結合部位貼設一長度 超出該顯示面板邊緣的硬質保護片，從而避免該可撓性印刷電 路板以該顯示面板的邊緣作為彎折的彎折點，使該可撓性印刷 電路板鄰近該顯示面板邊緣的連接端子不易受到重複彎折影 響而產生斷裂。 ’ 為達上述之目的，本發明提供一種具可撓性印刷電路板之 連接端子斷裂防護的液晶顯示裝置，其包含： 一顯示面板； 一可撓性印刷電路板，具有一第一連接端及一第二連接 端，該第—連接端係設於該顯示面板之一側邊上；以及 201219895 一硬質保護片，係黏貼於該可撓性印刷電路板之第一連接 端上而設於該顯示面板之側邊上，其中該硬質保護片具有一凸 出部’該凸出部係沿該可撓性印刷電路板延伸而超出該顯示面 板之側邊。 在本發明之一實施例中，該顯示面板包含一下基板及一上 基板’該上基板係設於該下基板之上表面上；該可撓性印刷電 路板之第一連接端係設於該下基板之上表面側邊。 在本發明之一實施例中，所述硬質保護片之硬度大於該可 挽性印刷電路板之硬度；及所述硬質保護片之硬度小於該下基 板之硬度。 在本發明之一實施例中，該下基板為一薄膜電晶體基板； 該上基板為一彩色濾光片基板。 在本發明之一實施例中，該硬質保護片的厚度介於0.1毫 米與該上基板的厚度之間。 在本發明之一實施例中’所述硬質保護片之莫氏硬度 (Mohs Hardness Scale)小於 3H。 在本發明之一實施例中，所述硬質保護片係為聚碳酸酯 (PC)、聚乙烯對苯二曱酸酯（pET)、聚甲基丙烯酸曱酯（pmma) 或尼龍(Nyl〇n)等材料所製成，或為玻璃纖維疊層板或是碳纖維 疊層板。 在本發明之一實施例中，該硬質保護片之凸出部超出該顯 不面板之側邊的長度介於0.2毫米至2毫米。 在本發明之一實施例中，該硬質保護片之寬度大於該可撓 性印刷電路板之寬度。 在本發明之一實施例中，係進一步包含一控制電路板，該 可撓性印刷電路板之第二連接端係設於該控制電路板之一側 201219895 邊上。 在本發明之一實施例中，係進一步包含一第二硬質保護 片，該第二硬質保護片黏貼於該可撓性印刷電路板之第二連接 端上而設於該控制電路板之側邊，其中該第二硬質保護片具有 一凸出部’該凸出部係沿該可撓性印刷電路板延伸而超出該控 制電路板之侧邊。 在本發明之一實施例中，所述第二硬質保護片之硬度大於 該可撓性印刷電路板之硬度；及所述第二硬質保護片之硬度小 Φ 於該控制電路板之硬度。 在本發明之一實施例中，所述第二硬質保護片係為聚碳酸 酯（PC)、聚乙烯對苯二曱酸酯（PET)、聚甲基丙烯酸曱酯（pmma) 或尼龍(Nylon)等材料所製成’或為玻璃纖維疊層板或是碳纖維 疊層板。 【實施方式】 為了讓本發明之上述及其他目的、特徵、優點能更明顯易 φ 懂’下文將特舉本發明較佳實施例，並配合所附圖式，作詳細 說明如下。 下列說明是參考附加的圖式，用以例示本發明可用以實施 之特定實施例。本發明所提到的方向用語，例如「上」、「下」、 「前」、「後」、「内」、「外」、「左」、「右」等’僅是參考附加圖 式的方向。因此’本發明以下實施例中所提到的方向用語僅是 用來輔助說明本發明技術内容，而非用來限制本發明。 請參考第3圖所示，第3圖揭示本發明第一實施例之具可 撓性印刷電路板之連接端子斷裂防護的液晶顯示裝置的上視 示意圖’係包含一顯示面板1〇、一可撓性印刷電路板2〇及一 201219895 硬質保護片30。 請進一步參考第4圖及第5圖所示，該顯示面板1〇包含 一下基板11及一上基板12。該下基板11具有一上表面，該上 表面之一側邊1〇〇係為該下基板η之電連接端的所在位置，並 可設有至少一驅動晶片1〇1;該下基板^可以是一薄膜電晶體 基板’其表面具有透明導電層（如銦錫氧化物層），以構成電連 接端及薄膜電晶體等電路結構。該上基板12係設於該下基板 11之上表面上’詳細來說’該上基板12之一邊緣係位於該下 基板11之側邊100的内側；該上基板12可以是一彩色濾光片 基板。再者’該顯示面板1〇具有一顯示區13，係與該下基板 11及該上基板12相對重疊。 前述可撓性印刷電路板20具有一第一連接端21及一第二 連接端22,該第一連接端21係設於該顯示面板1〇之側邊，本 實施例中，該第一連接端21係設於前述下基板11的上表面侧 邊100 ’以電性連接該下基板11之電連接端。 前述硬質保護片30係黏貼於該可撓性印刷電路板20之第 一連接端21上而設於該顯示面板1〇之側邊，如第4圖及第5 圖所示’該硬質保護片30對應該第一連接端21而黏貼於該下 基板11之上表面側邊1〇〇上’並鄰近前述上基板12之邊緣， 該硬質保護片30之寬度大於該可撓性印刷電路板20之寬度。 該硬質保護片30具有一凸出部300，該凸出部300係沿該可撓 性印刷電路板20延伸而超出該顯示面板1〇之下基板11的側邊 1〇〇’其超出該側邊100的長度較佳是介於〇.2毫米至2毫米。 再者’該硬質保護片30的厚度較佳是介於〇.1毫米與該上 基板12的厚度之間。所述硬質保護片3〇之硬度較佳大於該可 撓性印刷電路板20之硬度；及所述硬質保護片30之硬度較佳 201219895 •小於該下基板11之硬度，例如所述硬質保護片30之莫氏硬度 較佳是小於3H，且該硬質保護片3〇可以為聚碳酸醋（pc)、聚 • W對苯二f酸醋（PET)、M基丙稀酸甲酿（PM·)或尼龍 (咖η)等材料所製成，或為破璃纖維疊層板或是碳纖維整層 板。 如第5圖所示，由於該硬質保護片3〇的凸出部則延伸 超出該下基板11側邊1GG，該可撓性印刷電路板2()受外力脊 折時，將會以該硬質保護片30的凸出部則邊緣做騎折點， ♦亦即該可撓性印刷電路板20受到f折的部分可較遠離其第一 連接端21，使其第-連接端21處的銅羯線路不易受到贊折的 影響，進而蜂保液晶顯不裝置的組裝過程中，該可挽性印刷電 路板20不會再有如先前技術所產生的連接端子的銅箔線路斷 裂問題。 請參考第6圖所示，第6圖為本發明第二實施例之上視示 意圖，本實施例係揭示本發明之液晶顯示裝置可進一步包含一 控制電路板40，以提供至少一前述可撓性印刷電路板2〇之第 藝一連接端22連接。該可撓性印刷電路板2〇之第二連接端22 係設於該控制電路板4〇之一側邊上，且該可撓性印刷電路板 2〇上可設有至少一驅動晶片200(晶粒軟膜接合技術，Chip 〇n Film)。再者’本實施例尚包含至少一第二硬質保護片％，該 第一硬質保護片50係黏貼於該可撓性印刷電路板2〇之第二連 接端22上而設於該控制電路板40之側邊，其中該第二硬質保 護片50具有一凸出部500，該凸出部500係沿該可撓性印刷電 路板20延伸而超出該控制電路板40之側邊。該第二硬質保護 片50之功能與材質與前述硬質保護片相同，其功用同樣是藉 由改變該可撓性印刷電路板20的彎折點，以使該可撓性印刷 201219895 電路板20之第_一連接端22處的銅羯線路不易受到管折的影 響。 综上所述，本發明有鑒於可撓性印刷電路板的連接端子部 分的銅箔線路較為脆弱，因而將一硬質保護片對應可撓性印刷 電路板與顯示面板連接的位置而黏貼在該可撓性印刷電路板 的表面，並令該硬質保護片部分凸出該顯示面板邊緣，從而避 免該可撓性印刷電路板受外力彎折時以該顯示面板的邊緣作 為彎折點，使鄰近該顯示面板邊緣的可撓性印刷電路板的連接 端子邛刀不易受到彎折影響而造成該處銅箔線路的斷裂，進而 使產品良率獲得提升。 本發月已以較佳實施例方式揭露，然其並非用以限制本創 作，何熟習此項技藝之人士’在不麟本創作之精神和範圍 内w可作各種更動與修飾，因此本創作之保護範圍當視後附 之申請專利範圍所界定者為準。 【圖式簡單說明】 第1圖為現有一 第-2圖為第J圓 視圖。 可撓性印刷電路板之剖視圖。 之可撓性印刷電路板設於一顯示面板的剖 端子斷裂防例之具可換性印刷電路⑽ 日日...員不裝置的概要上視示意圖。 4圖為第3圓之局部放大示意圖。 第5圖為第4圖之剖視圖。 第6圖為本發明# ^ 端子斷裂防護的液ai§例之具可撓性印刷電路板之連与 曰曰颂不裝置的概要上視示意圖。 201219895 【主要元件符號說明】 10 顯示面板 100 側邊 101 驅動晶片 11 下基板 12 上基板 13 顯示區 200 驅動晶片 20 可撓性印刷電路板 21 第一連接端 22 第二連接端 30 硬質保護片 300 凸出部 40 控制電路板 50 第二硬質保護片 500 凸出部 80 顯示面板 90 可撓基材 91 銅箔線路 910 、930連接端子 92 保護層 11201219895 VI. Description of the Invention: [Technical Field] The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device having a connection terminal break protection of a switchable printed circuit board. [Prior Art] Referring to Figure 1, the general flexible printed circuit board (7) e pnnted circuit board) is mainly provided on the surface of the flexible substrate 9q, which is provided with copper fl lines 9 and then (4) The surface of the 91 is covered with a protective layer 92 of the layer insulation, and only the portion of the line 91 (4) is exposed as the connection terminals 91, 930 electrically connected to other electronic components. Referring to FIG. 2, when the flexible printed circuit board is applied to a liquid crystal display device, the connection terminal 91 of the liquid crystal display device can be pressed against the side of the display panel 80 of the liquid crystal display device to make the copper. The box line 91 is electrically connected to the electrical connection end of the display panel 8G at the side. The connection terminal at the other end of the flexible printed circuit board can record the connection-(four) circuit board, thereby making the switchable printed circuit board serve as an electronic signal transmission between the control circuit board and the display panel 8 Bridge. However, in the assembly process of the present invention, the copper foil line 91 at the connection terminal 910 of the flexible printed circuit board tends to be broken during the assembly process, and the breakage may occur in the external pin bonding process. (〇uter Lead Bonding, OLB), the aforementioned control circuit board is swayed or squeezed by the operator and squeezed to the connection terminal portion of the flexible printed circuit board, and the reliability test is just described as the control board heats up _ cold shrinkage The flexible printed circuit board is deformed, the operator presses the flexible printed circuit board position, and the like during the inspection operation. 201219895 & described various reasons for the breakage of the copper 4 line 91 of the flexible printed circuit board at the connection terminal 910 because the connection terminal 910 of the replaceable printed circuit board is fixed to the display panel 8 〇 (or control circuit board) side, when the flexible printed circuit board is bent by an external force, the side edge of the display-panel 8 将会 will be used as a bending point, since the protective layer 92 is opposite to The flexible substrate 90 has a fault at a position close to the connection terminal 91 (). The flexible base is bent when the side of the display panel 8 is bent by an external force. The material 90 and the protective layer 92 形成 will press or pull the copper box line 91 at the connection end + 91〇, and after a plurality of bending, the copper foil line 91 will be fatigued at the connection terminal 910. A fracture is formed. Therefore, it is necessary to provide a liquid crystal display device having a connection terminal break protection of a flexible printed circuit board to solve the problems of the prior art. SUMMARY OF THE INVENTION In view of the shortcomings of the prior art, the main object of the present invention is to provide a liquid crystal display device capable of cracking the connection terminals of a printed circuit board, which is provided on a flexible printed circuit board and display. A rigid protective sheet having a length exceeding the edge of the display panel is attached to the joint portion of the panel, so that the flexible printed circuit board is prevented from being bent at the edge of the display panel, so that the flexible printed circuit board is adjacent to the flexible printed circuit board. The connection terminals at the edge of the display panel are not easily broken by repeated bending. For the above purpose, the present invention provides a liquid crystal display device with a connection terminal break protection of a flexible printed circuit board, comprising: a display panel; a flexible printed circuit board having a first connection end and a second connecting end, the first connecting end is disposed on one side of the display panel; and a hard protective sheet of 201219895 is attached to the first connecting end of the flexible printed circuit board and disposed on the second connecting end The side of the display panel, wherein the rigid protective sheet has a protrusion extending along the flexible printed circuit board beyond the side of the display panel. In an embodiment of the present invention, the display panel includes a lower substrate and an upper substrate disposed on the upper surface of the lower substrate; the first connection end of the flexible printed circuit board is disposed on the upper substrate The side of the upper surface of the lower substrate. In one embodiment of the invention, the hardness of the hard protective sheet is greater than the hardness of the printable printed circuit board; and the hardness of the hard protective sheet is less than the hardness of the lower substrate. In an embodiment of the invention, the lower substrate is a thin film transistor substrate; and the upper substrate is a color filter substrate. In one embodiment of the invention, the thickness of the hard protective sheet is between 0.1 mm and the thickness of the upper substrate. In an embodiment of the invention, the hard protection sheet has a Mohs Hardness Scale of less than 3H. In an embodiment of the invention, the hard protection sheet is polycarbonate (PC), polyethylene terephthalate (pET), poly(meth) methacrylate (pmma) or nylon (Nyl〇n) Made of materials such as glass fiber laminates or carbon fiber laminates. In an embodiment of the invention, the projection of the rigid protective sheet has a length beyond the side of the display panel of from 0.2 mm to 2 mm. In one embodiment of the invention, the width of the rigid protective sheet is greater than the width of the flexible printed circuit board. In an embodiment of the invention, the method further includes a control circuit board, and the second connection end of the flexible printed circuit board is disposed on one side of the control circuit board on the side of 201219895. In an embodiment of the present invention, the second hard protection sheet is adhered to the second connection end of the flexible printed circuit board and disposed on the side of the control circuit board. The second hard protection sheet has a protrusion that extends along the flexible printed circuit board beyond the side of the control circuit board. In an embodiment of the invention, the hardness of the second hard protection sheet is greater than the hardness of the flexible printed circuit board; and the hardness of the second hard protection sheet is smaller than the hardness of the control circuit board. In an embodiment of the invention, the second hard protection sheet is polycarbonate (PC), polyethylene terephthalate (PET), poly(meth) methacrylate (pmma) or nylon (Nylon). ) Made of materials such as 'glass fiber laminates or carbon fiber laminates. The above and other objects, features, and advantages of the present invention will become more apparent and understood. The following description is by reference to the accompanying drawings in the claims The directional terms mentioned in the present invention, such as "upper", "lower", "before", "after", "inside", "outside", "left", "right", etc. are only referred to as additional schemas. direction. Therefore, the directional terms used in the following embodiments of the present invention are only used to assist in explaining the technical content of the present invention, and are not intended to limit the present invention. Referring to FIG. 3, FIG. 3 is a schematic top view of a liquid crystal display device with a connection terminal break protection of a flexible printed circuit board according to a first embodiment of the present invention, which includes a display panel. Flexible printed circuit board 2 and a 201219895 rigid protective sheet 30. Referring to FIGS. 4 and 5, the display panel 1 includes a lower substrate 11 and an upper substrate 12. The lower substrate 11 has an upper surface, and one side of the upper surface is located at the electrical connection end of the lower substrate n, and at least one driving wafer 1〇1 may be disposed; the lower substrate may be A thin film transistor substrate has a transparent conductive layer (such as an indium tin oxide layer) on its surface to constitute a circuit structure such as an electrical connection terminal and a thin film transistor. The upper substrate 12 is disposed on the upper surface of the lower substrate 11. In detail, one edge of the upper substrate 12 is located inside the side 100 of the lower substrate 11; the upper substrate 12 may be a color filter. Sheet substrate. Further, the display panel 1 has a display area 13 which is opposite to the lower substrate 11 and the upper substrate 12. The flexible printed circuit board 20 has a first connecting end 21 and a second connecting end 22, and the first connecting end 21 is disposed on a side of the display panel 1 ,. In this embodiment, the first connection The end 21 is disposed on the upper surface side 100 ′ of the lower substrate 11 to electrically connect the electrical connection end of the lower substrate 11 . The rigid protective sheet 30 is adhered to the first connecting end 21 of the flexible printed circuit board 20 and is disposed on the side of the display panel 1 , as shown in FIGS. 4 and 5 'the hard protective sheet 30 is opposite to the edge of the upper surface of the lower substrate 11 and adjacent to the edge of the upper substrate 12, and the width of the hard protection sheet 30 is larger than that of the flexible printed circuit board 20 The width. The rigid protective sheet 30 has a protruding portion 300 extending along the flexible printed circuit board 20 beyond the side of the substrate 11 below the display panel 1 '' beyond the side The length of the side 100 is preferably between 〇.2 mm and 2 mm. Further, the thickness of the hard protective sheet 30 is preferably between 0.1 mm and the thickness of the upper substrate 12. The hardness of the rigid protective sheet 3 is preferably greater than the hardness of the flexible printed circuit board 20; and the hardness of the hard protective sheet 30 is preferably 201219895 • less than the hardness of the lower substrate 11, such as the hard protective sheet The Mohs hardness of 30 is preferably less than 3H, and the hard protective sheet 3 can be polycarbonate (pc), poly-W-p-phenylene acid vinegar (PET), M-based acrylic acid brewing (PM· Or made of nylon or other materials, or a fiberglass laminate or a carbon fiber laminate. As shown in FIG. 5, since the protruding portion of the rigid protective sheet 3〇 extends beyond the side edge 1GG of the lower substrate 11, when the flexible printed circuit board 2() is folded by an external force, the hard portion will be The protruding portion of the protective sheet 30 is used as a riding point, that is, the portion of the flexible printed circuit board 20 that is folded by f can be farther away from the first connecting end 21, so that the copper at the first connecting end 21 The 羯 line is not easily affected by the singularity, and in the assembly process of the embossed liquid crystal display device, the slidable printed circuit board 20 does not have the copper foil line breakage problem of the connection terminal as produced by the prior art. Please refer to FIG. 6 , which is a top view of a second embodiment of the present invention. The liquid crystal display device of the present invention may further include a control circuit board 40 to provide at least one of the foregoing flexible The first printed terminal 22 of the printed circuit board 2 is connected. The second connecting end 22 of the flexible printed circuit board 2 is disposed on one side of the control circuit board 4, and the flexible printed circuit board 2 can be provided with at least one driving chip 200 ( Chip soft film bonding technology, Chip 〇n Film). In addition, the present embodiment further includes at least one second hard protection sheet 50. The first hard protection sheet 50 is adhered to the second connection end 22 of the flexible printed circuit board 2 and is disposed on the control circuit board. The side of the 40, wherein the second hard protection sheet 50 has a protrusion 500 extending along the flexible printed circuit board 20 beyond the side of the control circuit board 40. The function and material of the second hard protection sheet 50 are the same as those of the above-mentioned hard protection sheet, and the function is also to change the bending point of the flexible printed circuit board 20 so that the flexible printed 201219895 circuit board 20 The copper raft line at the first connection end 22 is not easily affected by the tube fold. In view of the above, in the present invention, in view of the fact that the copper foil line of the connection terminal portion of the flexible printed circuit board is relatively weak, a rigid protective sheet is adhered to the position where the flexible printed circuit board is connected to the display panel. a surface of the flexible printed circuit board, and the hard protective sheet portion is protruded from the edge of the display panel, so as to prevent the flexible printed circuit board from being bent by an external force, and the edge of the display panel is used as a bending point, so as to be adjacent to the edge The connecting terminal of the flexible printed circuit board at the edge of the display panel is not easily affected by the bending, thereby causing breakage of the copper foil line at the edge, thereby improving the product yield. This month has been disclosed in the preferred embodiment. However, it is not intended to limit the creation of this work. Anyone who is familiar with the art can make various changes and modifications in the spirit and scope of the creation. The scope of protection is subject to the definition of the scope of the patent application. [Simple description of the drawing] Fig. 1 is a conventional one, and the second drawing is a J-circle view. A cross-sectional view of a flexible printed circuit board. The flexible printed circuit board is provided on a display panel. The terminal is broken. The interchangeable printed circuit (10) is a schematic view of the device. 4 is a partial enlarged view of the third circle. Fig. 5 is a cross-sectional view of Fig. 4. Fig. 6 is a schematic top plan view showing the connection and the non-device of the flexible printed circuit board of the liquid aii example of the #^ terminal break protection of the present invention. 201219895 [Description of main component symbols] 10 Display panel 100 Side 101 Driving wafer 11 Lower substrate 12 Upper substrate 13 Display area 200 Driving wafer 20 Flexible printed circuit board 21 First connection end 22 Second connection end 30 Hard protection sheet 300 Projection portion 40 Control circuit board 50 Second rigid protection sheet 500 Projection portion 80 Display panel 90 Flexible substrate 91 Copper foil line 910, 930 Connection terminal 92 Protective layer 11