201034543 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種顯示裝置、顯示模組及軟性電路 板0 【先前技術】 由於現今液晶顯示裝置（Liquid Crystal Display Apparatus，LCD Apparatus)影像表現技術的進步，其驅動 ❿ 積體電路（Driver Integrated Circuit)的設計及晶片（Chip ) 的封裝技術越顯重要。在液晶顯示模組裡需要多顆的驅動 晶片’這包括訊號驅動（Signal Driving)晶片、閘級驅動 (Gate Driving )晶片以及時序控制器（Timing Controller， TCON)晶片等等。而驅動晶片的封裝方式，則可以分為 下列二種.捲帶式自動接合技術（Tape Automated Bonding, TAB)、薄膜覆晶技術（Chip on Film，COF)及覆晶玻璃接 φ 合技術（Chip on Glass，COG)。 隨著現在液晶顯示裝置往輕薄短小且高解析度及高 晝質的方向發展’更衍生出細間距封裝技術（Fine Pitch Bonding ) °其高引腳（lead )數及細微引腳間距（fine pitch ) 之特性’使其具有提高資料頻道（data channel)數目，及 減小軟性電路板之體積的優點，並可配合高解析極高晝質 之傳輸，同時不增加封裝的體積。且由於其多功能性、可 撓性，及可搭載被動元件等特性，細間距封裝技術，將會 •是液晶顯示模組未來封裝技術的主流。 4 201034543 明參照圖1所示，甘及& /、係為習知技術液晶顯示 部分侧視圖，液晶顯示模έ且 貝下核組1之 棋、、且1包含一液晶顯示 印刷電路板12及一軟性雷板11' — 平人『生電路板13，軟性電路板 有驅動晶片131，驅動曰H ^ 上貝i具 版动日日片131係利用c〇F封妒姑 於軟性電路板丨3上。軟性了装技術封襄 釈Γ生1：路板13係利用異方 Α將一端連接於液晶顯 導電膠 路板12。由於軟性電^ ^則連接於印刷電 蚊軟性電路板13之導線132非常細，201034543 VI. Description of the Invention: [Technical Field] The present invention relates to a display device, a display module, and a flexible circuit board. [Prior Art] Due to the current liquid crystal display device (LCD Apparatus) image representation technology The advancement, the design of the driver integrated circuit and the packaging technology of the chip are becoming more and more important. In the liquid crystal display module, a plurality of driving chips are required. This includes a signal driving chip, a Gate Driving chip, and a Timing Controller (TCON) chip. The driving method of the driving chip can be divided into the following two types: Tape Automated Bonding (TAB), Chip On Film (COF), and Foiled Glass Bonding Technology (Chip). On Glass, COG). With the current development of liquid crystal display devices in the direction of light and thin, high resolution and high quality, Fine Pitch Bonding has been developed. The number of high leads and the fine pitch are fine pitch. The characteristic 'has the advantages of increasing the number of data channels and reducing the volume of the flexible circuit board, and can cooperate with high-resolution extremely high-quality transmission without increasing the size of the package. And because of its versatility, flexibility, and the ability to carry passive components, fine pitch packaging technology will be the mainstream of future packaging technology for liquid crystal display modules. 4 201034543 As shown in FIG. 1 , Gan & / is a side view of a liquid crystal display portion of a conventional technology, a liquid crystal display module and a chess core group 1 , and 1 includes a liquid crystal display printed circuit board 12 And a soft thunder board 11' — Pingren's raw circuit board 13, flexible circuit board with drive chip 131, drive 曰H ^ 上贝i with version of the Japanese version of the 131 series using c〇F sealed on the flexible circuit board丨 3 on. Soft-packed technology package 釈Γ1: The road board 13 is connected to the liquid crystal display conductive board 12 by using an anisotropic Α. The wire 132 connected to the printed mosquito flexible circuit board 13 is very thin due to the soft electric power.
、扒、有20μηι，所以當軟性電路板U順著液曰曰顯：面： =印刷電路板12連結時，容易造成軟性^ 貝使传液晶顯示模組1的產口旦^ 像表現下降。 1的產〇口衫 板 度 口此，如何提供—種顯示裝置、顯示模組及軟性電路 ’亚於細間距封裝技術中增加軟性電路板上導線之強 ’使導線較不易斷裂，正是當前的重要課題之一。 【發明内容】 有鑑於上述課題，本發明之目的為提供一種能增加軟 佳電路板上的導線之強度’使導線不㈣裂之顯示裝置、 顯示模組及軟性電路板。 為達上述目的，本發明提供一種顯示裝置，包令—背 光模組及一顯示模組。顯示模組設置於背光模組之一側， 顯示模組包含一顯示面板、一印刷電路板以及一軟性電路 板。軟性電路板電性連接顯示面板之電性連接區域及印刷 5 201034543 電路板之電性連接區域，軟性電路板包含一電路走線，其 中電路走線具有一第—電路線寬區域及一第二電路線寬 區域，其中，第二電路線寬區域對應設置於顯示面板之電 性連接區域之外，且第二電路線寬區域之線寬係大於第一 電路線寬區域之線寬。 _為達上述目的，本發明提供一種顯示模組，包含一顯 示面板 印刷電路板及一軟性電路板。軟性電路板電性 魯連接顯示面板之電性連接區域及印刷電路板之電性連接 區域，軟性電路板包含一電路走線，其中電路走線具有一 第一電路線寬區域及一第二電路線寬區域，其中，第二電 路線寬區域對應設置於顯示面板之電性連接區域之外，且 第二電路線寬區域之線寬係大於第一電路線寬區域之線 寬。 為達上述目的，本發明提供一種軟性電路板，其係電扒, 20μηι, so when the flexible circuit board U follows the liquid :: face: = when the printed circuit board 12 is connected, it is easy to cause the softness of the liquid crystal display module 1 to reduce the performance of the image. The production of the 〇 〇 , , , , , , , , , , , , , , 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 如何 显示 显示 显示 显示 显示 显示 显示 显示 显示 显示 显示 显示 显示 显示 显示 显示 显示 显示One of the important topics. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a display device, a display module, and a flexible circuit board which can increase the strength of a wire on a soft circuit board. To achieve the above object, the present invention provides a display device, a package-backlight module and a display module. The display module is disposed on one side of the backlight module, and the display module comprises a display panel, a printed circuit board and a flexible circuit board. The flexible circuit board is electrically connected to the electrical connection area of the display panel and the electrical connection area of the printing board of the 201034543 circuit board. The flexible circuit board comprises a circuit trace, wherein the circuit trace has a first circuit line width area and a second The circuit line width region, wherein the second circuit line width region is disposed outside the electrical connection region of the display panel, and the line width of the second circuit line width region is greater than the line width of the first circuit line width region. In order to achieve the above object, the present invention provides a display module comprising a display panel printed circuit board and a flexible circuit board. The flexible circuit board electrically connects the electrical connection region of the display panel and the electrical connection region of the printed circuit board, and the flexible circuit board comprises a circuit trace, wherein the circuit trace has a first circuit line width region and a second circuit The line width region, wherein the second circuit line width region is disposed outside the electrical connection region of the display panel, and the line width of the second circuit line width region is greater than the line width of the first circuit line width region. To achieve the above object, the present invention provides a flexible circuit board that is electrically
Is生連接顯示面板之電性連接區域及一印刷電路板之電 • 性連接區域，軟性電路板包含一電路走線，其中電路走線 具有第一電路線寬區域及一第二電路線寬區域，其中，第 一電路線寬區域對應設置於顯示面板之電性連接區域之 外，且第二電路線寬區域之線寬係大於第一電路線寬區域 之線寬。 承上所述，因依本發明之顯示裝置、顯示模組及軟性 電路板中，軟性電路板之電路走線係具有有第一電路線寬 區域及第二電路線寬區域，第二電路線寬區域係設置於顯 不面板之電性連接區域之外，且第二電路線寬區域之線寬 201034543 係大於第一電路線寬區域之線寬。如此一來，可使細間距 封裝技術中導線之強度增加，較不易斷裂，以提高產品的 可靠性。 【實施方式】 以下將參照相關圖式，說明依本發明較佳實施例之顯 示裝置、顯示模組及軟性電路板。 請參照圖2所示，其係為顯示裝置3之一部分側視 ❹ 圖，本發明較佳實施例之顯示裝置3包含一顯示模組2及 一背光模組B。其中，顯示裝置3係以一液晶顯示裝置為 例。 顯示模組2設置於背光模組B之一側，顯示模組2包 含一顯示面板21、一印刷電路板22及一軟性電路板23。 背光模組B用以供應充足的亮度與分佈均勻的面光源至顯 示面板21，使顯示裝置3能顯示影像。 0 顯示面板21具有一彩色濾光片基板（Color FilterThe circuit board includes a circuit trace, wherein the circuit trace has a first circuit line width region and a second circuit line width region. The first circuit line width region is disposed outside the electrical connection region of the display panel, and the line width of the second circuit line width region is greater than the line width of the first circuit line width region. According to the above description, in the display device, the display module and the flexible circuit board according to the present invention, the circuit trace of the flexible circuit board has a first circuit line width region and a second circuit line width region, and the second circuit line The wide area is disposed outside the electrical connection area of the display panel, and the line width 201034543 of the second circuit line width area is greater than the line width of the first circuit line width area. In this way, the strength of the wires in the fine pitch packaging technology can be increased, and it is less likely to be broken, thereby improving the reliability of the product. [Embodiment] Hereinafter, a display device, a display module, and a flexible circuit board according to a preferred embodiment of the present invention will be described with reference to the related drawings. Referring to FIG. 2, which is a partial side view of the display device 3, the display device 3 of the preferred embodiment of the present invention includes a display module 2 and a backlight module B. Among them, the display device 3 is exemplified by a liquid crystal display device. The display module 2 is disposed on one side of the backlight module B. The display module 2 includes a display panel 21, a printed circuit board 22, and a flexible circuit board 23. The backlight module B is configured to supply a sufficient brightness and a uniformly distributed surface light source to the display panel 21 to enable the display device 3 to display images. 0 The display panel 21 has a color filter substrate (Color Filter
Substrate, CF Substrate) 211 及一薄膜電晶體基板（Thin Film Transistor Substrate，TFT Substrate ) 212，彩色濾、光片 基板211與薄膜電晶體基板212相互接合，液晶材料（圖 中未顯示）則夾置於其間。其中，薄膜電晶體基板212之 邊緣具有一磨邊區E，磨邊區E的形成是為了避免鋒利的 玻璃基板邊緣造成人員或器具的損害，而利用磨邊機將玻 璃基板的邊緣磨成導角，其中磨邊區E的範圍可依實際產 品需求而定。 201034543 印刷電路板22用以驅動顯示面板21之薄膜電晶體 (圖中未顯不），以使顯示面板21能接收及顯示影像訊號。 月同時參照圖2及圖3所示，軟性電路板23係電性 連接顯不面板21之電性連接區域C1及印刷電路板22之 電性連接區域C2 ’以讓印刷電路板22上的電性訊號能藉 ^軟性電路板23而傳遞至顯示面板21，其中，顯示面板 21之電性連接區域C1及印刷電路板22之電性連接區域 鲁 句刀別5又置有複數連接墊（Bonding Pads )，該等連接 墊與軟性電路板23電性連接，以使印刷電路板22之驅動 汛號可以傳送至顯示面板21。本實施例中，軟性電路板 更了包含一電路走線（Wiring Pattern ) W及一驅動晶片 231，經由軟性電路板23之電路走線w而將驅動晶片23】 與顯示面板21及印刷電路板22電性連接。驅動晶片231 ^主要功能為輸出需要的電壓至顯示面板21，以控制液晶 刀子的扭轉程度。驅動晶片231分為兩種，一種為訊號驅 • 動晶片（Signal Driving 1C)，另一種為閘極驅動晶片（Gate Driving Ic)，於此並不限制驅動晶片231的種類。其中， 軟性電路板23為一薄膜覆晶電路板（chip 〇nFilm)。 、軟性電路板23之電路走線w包含一第一電路線寬區 域232及一第二電路線寬區域233，第二電路線寬區域2幻 與第一電路線寬區域232連接，也就是說，第一電路線寬 =域232及第二電路線寬區域233為軟性電路板23上的 同導線。其中，第一電路線寬區域232係與顯示面板21 之電性連接區域C1電性連接的部分，而第二電路線寬區 8 201034543 域233對應設置於顯示面板21之電性連接區域Cl之外， 於此，軟性電路板23係以具有複數導線為例，而複數導 線則形成電路走線W。 如圖3所示，第一電路線寬區域232之線寬具有一第 一寬度X，第二電路線寬區域233之線寬具有一第二寬度 Y，且第二寬度Y大於第一寬度X。其中，至少一部分第 二電路線寬區域233係鄰設於磨邊區E，也就是顯示面板 21的邊緣設置，而第二電路線寬區域233的長度係不限 ❿ 制，例如可為大於顯示面板21的邊緣，或是軟性電路板 23有彎折的地方。當組裝顯示模組3，印刷電路板22係 與顯示面板21重疊設置，因此連結印刷電路板22與顯示 面板21的軟性電路板23，則需順著薄膜電晶體基板212 之磨邊區E彎折。由於軟性電路板23的第二電路線寬區 域233的第二寬度Y係大於第一電路線寬區域232第一寬 度X，因此本發明之軟性電路板23彎折時，可有效減少細 間距封裝技術中軟性電路板23之導線斷裂現象的發生， 以確保產品的可靠性。 另外，軟性電路板23可具有一絕緣層234，於此，絕 緣層234並未覆蓋第二電路線寬區域233，但是可依實際 需求而將絕緣層234覆蓋部分第二電路線寬區域233、或 覆蓋全部的第二電路線寬區域233，以保護第二電路線寬 區域233。至於第一電路線寬區域232因要與顯示面板21 電性連接，故未覆蓋絕緣層234。本實施例中，軟性電路 板23更可包含一第三電路線寬區域235,係與第二電路線 9 201034543 寬區域233連接，絕緣層234、可覆蓋大部分的第三電路線 寬區域235，只露出第三電路線寬區域235與印刷電路板 22電性連結之處。 再請參照圖2，本實施例中，顯示模組2更可包含二 異方性導電膠 24 ( Anisotropic Conductive Film, ACF )，用 以黏合電性連接顯示面板21與軟性電路板23及軟性電路 板23與印刷電路板22。 如圖3及圖4中所示，軟性電路板23具有複數第一 鲁電路線寬區域232及複數第二電路線寬區域233，該等第 一電路線寬區域232之間實質上為平行排列，該等第二電 路線寬區域233之間實質上也為平行排列。其中，相鄰的 第二電路線寬區域233之間具有一間隔s，且線距（pitch， P)可為一定值。間隔S需大於異方性導電膠24内之導電 粒子粒徑，才不會產生短路。異方性導電膠24内的導電 粒子粒徑因為製作時的製程不同，會有不同的尺寸，於 鮝此’導電粒子粒徑大約為3μπι至12μπι。因此，在計算第 一電路線寬區域233的容許寬度時，需要考慮到導電粒子 的粒控。本實施例中，第二寬度γ可以用線距ρ減掉間隔 s得到。舉例來說，原第二電路線寬區域233的第二寬度 γ為20μιη ’當線距P為39μιη，假使此製程之導電粒子之 最大粒控為ΙΟμιη，則間隔s之寬度需大於ΐ〇μιη。因此， 線距Ρ之39μπι減掉間隔s之i〇pm為29μιη，表示第二寬 度Υ應小於29μηι。 本實施例中’第三電路線寬區域235具有一第三寬度 201034543 z，第三寬度z可大於等於第二寬度γ，於此並不加以限 制。例如圖3中’第三寬度ζ即大於第一寬度χ ;而圖4 t ’第三寬度Ζ即等於第一寬度又。至於第三電路線寬區 域235則因為有絕緣層234覆蓋，因此寬度若加寬並不會 有導電粒子聚集的問題，故第三電路線寬區域235的寬度 可視製程能力而定。 又 請同時參照圖2及圖3，本發明亦提供一種顯示模組 2，其係包含一顯示面板2卜—印刷電路板22及一軟性電 # 路板23。軟性電路板23電性連接顯示面板2丨之電性連接 區域C1及印刷電路板22之電性連接區域C2，軟性電路 板23包含一電路走線W，其中電路走線w具有一第一電 路線寬區域232及一第二電路線寬區域233，其中，第二 電路線區域233對應設置於顯示面板21之電性連接區 域C1之外，且第二電路線寬區域233之線寬係大於第一 電路線見區域232之線寬。其中’顯示面板21、印刷電路 鲁板22及軟性電路板23與上述實施例之顯示面板21、印刷 電路板22及軟性電路板23之結構及連接關係實質上相 同，故於此不再贅述。 值得一提的是，顯示模組2除了可為液晶顯示模組之 外，顯示模組2還可以是投影顯示器（Projection Display )、 電漿顯示器（Plasma Display Panel，PDP )、真空螢光顯示 器（Vacuum Fluorescent Display, VFD)發光二極體顯示器 (Light Emission Diode Display, LED Display)、場發射顯 示器（Field Emission Display，FED)以及有機電激發光顯 11 201034543 示器（Organic Light Emitting Display, OLED )等等，只要 是有利用到軟性電路板23來連接顯示面板21及印刷電路 板22的顯示模組2即可。 ❿ 請同時參照圖2及圖3，本發明亦提供一種軟性電路 板23，其係電性連接一顯示面板21之電性連接區域q 及一印刷電路板22之電性連接區域C2，軟性電路板μ 包含一電路走線W，其中電路走線w具有一第一電路線 寬區域232及-第二電路線寬區域加，其中，第二電路 線寬區域233對應設置於顯示面板21之電性連接區域〇 之外’且第二電路線寬區域如之線寬係大於第一電路線 寬區域232之線寬。其中’顯示面板2卜印刷電路板22 ^軟性電路板23與上述實施例之中，顯示面板Μ、印刷 不再贅述。祕板23具有相_技術特徵，故於此 系示上所述，因依本發明之顧；壯 月之顯不裝置、顯示模組及軟性 電板中’軟性電路板之電路 區域及第二電路線寬區域 、具有㈣電路線寬 示面板之電性連接區域之外，^路線寬區域係設置於顯 係大於第-電路線寬區域之線寬^電路線寬區域之線寬 封裝技術中導線之強度增加 ^此一來，可使細間距 可靠性。 易斷裂，以提高產品的 以上所述僅為舉例性，而 本發明之精神與_，進限触者。任何未脫離 應包含於後附之申請專利範圍中了之等效修改或變更，均 12 201034543 【圖式簡單說明】 圖1為習知顯示模組之一侧視圖； 圖2為本發明較佳實施例之顯示裝置之一側視圖； 圖3為本發明較佳實施例之軟性電路板之一示意圖； 以及 圖4為本發明較佳實施例之軟性電路板之另一示意 圖。 • 【主要元件符號說明】 I、 2 :顯示模組 3 :顯示裝置 II、 21 :顯示面板 12、 22 :印刷電路板 13、 23、23a :軟性電路板 131、231 :驅動晶片 132 :導線 211 :彩色濾光片基板 212 :薄膜電晶體基板 232 :第一電路線寬區域 233 :第二電路線寬區域 234 :絕緣層 235 :第三電路線寬區域 A、24 :異方性導電膠 B:背光模組 13 201034543 ci :顯示面板之電性連接區域 C2:印刷電路板之電性連接區域 d ： 寬度 E 磨邊區 P 線距 S 間隔 W :電路走線 X 第一寬度 Y 第二寬度 Z 第三寬度 14Substrate, CF Substrate 211 and a Thin Film Transistor Substrate (TFT Substrate) 212, the color filter, the light substrate 211 and the thin film transistor substrate 212 are bonded to each other, and the liquid crystal material (not shown) is interposed. In the meantime. Wherein, the edge of the thin film transistor substrate 212 has an edging zone E, and the edging zone E is formed to avoid damage to personnel or appliances caused by the edge of the sharp glass substrate, and the edge of the glass substrate is ground into a lead angle by using an edger. The range of the edging zone E can be determined according to the actual product requirements. The printed circuit board 22 is used to drive the thin film transistor of the display panel 21 (not shown) so that the display panel 21 can receive and display the image signal. Referring to FIG. 2 and FIG. 3 at the same time, the flexible circuit board 23 is electrically connected to the electrical connection region C1 of the panel 21 and the electrical connection region C2 ′ of the printed circuit board 22 to make the electricity on the printed circuit board 22. The signal can be transmitted to the display panel 21 by the flexible circuit board 23, wherein the electrical connection area C1 of the display panel 21 and the electrical connection area of the printed circuit board 22 are provided with a plurality of connection pads (Bonding). Pads), the connection pads are electrically connected to the flexible circuit board 23 so that the driving nickname of the printed circuit board 22 can be transmitted to the display panel 21. In this embodiment, the flexible circuit board further includes a Wiring Pattern W and a driving chip 231, and drives the chip 23 and the display panel 21 and the printed circuit board via the circuit trace w of the flexible circuit board 23. 22 electrical connection. The driving chip 231 is mainly configured to output a required voltage to the display panel 21 to control the degree of twist of the liquid crystal blade. The driving chips 231 are divided into two types, one is a Signal Driving 1C and the other is a Gate Driving Ic, and the type of the driving wafer 231 is not limited thereto. The flexible circuit board 23 is a thin film flip chip board (chip 〇nFilm). The circuit trace w of the flexible circuit board 23 includes a first circuit line width region 232 and a second circuit line width region 233, and the second circuit line width region 2 is phantom connected to the first circuit line width region 232, that is, The first circuit line width = field 232 and the second circuit line width area 233 are the same wires on the flexible circuit board 23. The first circuit line width area 232 is a portion electrically connected to the electrical connection area C1 of the display panel 21, and the second circuit line width area 8 201034543 field 233 is correspondingly disposed on the electrical connection area C1 of the display panel 21. In addition, the flexible circuit board 23 is exemplified by a plurality of wires, and the plurality of wires form a circuit trace W. As shown in FIG. 3, the line width of the first circuit line width region 232 has a first width X, the line width of the second circuit line width region 233 has a second width Y, and the second width Y is greater than the first width X. . At least a portion of the second circuit line width region 233 is disposed adjacent to the edge region E, that is, the edge of the display panel 21, and the length of the second circuit line width region 233 is not limited, for example, may be larger than the display panel. The edge of 21, or the flexible circuit board 23 has a bend. When the display module 3 is assembled, the printed circuit board 22 is disposed to overlap the display panel 21, so that the flexible circuit board 23 connecting the printed circuit board 22 and the display panel 21 is bent along the edging area E of the thin film transistor substrate 212. . Since the second width Y of the second circuit line width region 233 of the flexible circuit board 23 is greater than the first width X of the first circuit line width region 232, the flexible circuit board 23 of the present invention can effectively reduce the fine pitch package when bent. The occurrence of wire breakage of the flexible circuit board 23 in the technology ensures the reliability of the product. In addition, the flexible circuit board 23 may have an insulating layer 234. Here, the insulating layer 234 does not cover the second circuit line width region 233, but the insulating layer 234 may cover a portion of the second circuit line width region 233 according to actual needs. Or all of the second circuit line width region 233 is covered to protect the second circuit line width region 233. As for the first circuit line width region 232 to be electrically connected to the display panel 21, the insulating layer 234 is not covered. In this embodiment, the flexible circuit board 23 further includes a third circuit line width region 235 connected to the second circuit line 9 201034543 wide region 233, and the insulating layer 234 covers most of the third circuit line width region 235. Only the third circuit line width region 235 is electrically connected to the printed circuit board 22. Referring to FIG. 2 , in the embodiment, the display module 2 further includes an anisotropic conductive film ( ACF ) for bonding the display panel 21 and the flexible circuit board 23 and the flexible circuit. Board 23 and printed circuit board 22. As shown in FIG. 3 and FIG. 4, the flexible circuit board 23 has a plurality of first Lu circuit line width regions 232 and a plurality of second circuit line width regions 233, and the first circuit line width regions 232 are substantially parallel arranged. The second circuit line width regions 233 are also substantially parallel arranged. The adjacent second circuit line width regions 233 have an interval s between them, and the pitch (P) may be a certain value. The interval S needs to be larger than the particle size of the conductive particles in the anisotropic conductive paste 24 so as not to cause a short circuit. The particle size of the conductive particles in the anisotropic conductive paste 24 may have different sizes depending on the manufacturing process, and the particle diameter of the conductive particles is approximately 3 μm to 12 μm. Therefore, in calculating the allowable width of the first circuit line width region 233, it is necessary to take into consideration the grain control of the conductive particles. In this embodiment, the second width γ can be obtained by subtracting the interval s from the line pitch ρ. For example, the second width γ of the original second circuit line width region 233 is 20 μm. When the line pitch P is 39 μm, if the maximum grain size of the conductive particles of the process is ΙΟμιη, the width of the interval s needs to be larger than ΐ〇μιη. . Therefore, the line pitch Ρ 39 μπι minus the interval s i 〇 pm is 29 μm, indicating that the second width Υ should be less than 29 μm. In the present embodiment, the third circuit line width region 235 has a third width 201034543 z, and the third width z may be greater than or equal to the second width γ, which is not limited thereto. For example, in Fig. 3, the third width ζ is larger than the first width χ; and the fourth width 图 in Fig. 4 t is equal to the first width. As for the third circuit line width region 235, since the insulating layer 234 is covered, if the width is widened and there is no problem that the conductive particles are concentrated, the width of the third circuit line width region 235 may depend on the process capability. Referring to FIG. 2 and FIG. 3 simultaneously, the present invention also provides a display module 2 including a display panel 2 - a printed circuit board 22 and a flexible electrical circuit board 23. The flexible circuit board 23 is electrically connected to the electrical connection area C1 of the display panel 2 and the electrical connection area C2 of the printed circuit board 22. The flexible circuit board 23 includes a circuit trace W, wherein the circuit trace w has a first circuit. a line width region 232 and a second circuit line width region 233, wherein the second circuit line region 233 is disposed outside the electrical connection region C1 of the display panel 21, and the line width of the second circuit line width region 233 is greater than The first circuit line sees the line width of region 232. The display panel 21, the printed circuit board 22, and the flexible circuit board 23 are substantially the same in structure and connection relationship as the display panel 21, the printed circuit board 22, and the flexible circuit board 23 of the above embodiment, and thus will not be described again. It is worth mentioning that, in addition to the liquid crystal display module, the display module 2 can also be a projection display, a plasma display panel (PDP), a vacuum fluorescent display ( Vacuum Fluorescent Display, VFD) Light Emission Diode Display (LED Display), Field Emission Display (FED), and Organic Light Emitting Display (OLED), etc. 201034543 (Organic Light Emitting Display, OLED) For example, the display module 2 that connects the display panel 21 and the printed circuit board 22 to the flexible circuit board 23 may be used. Referring to FIG. 2 and FIG. 3 simultaneously, the present invention also provides a flexible circuit board 23 electrically connected to an electrical connection region q of a display panel 21 and an electrical connection region C2 of a printed circuit board 22, a flexible circuit The board μ includes a circuit trace W, wherein the circuit trace w has a first circuit line width region 232 and a second circuit line width region, wherein the second circuit line width region 233 corresponds to the power of the display panel 21. The second connection line width region is greater than the line width of the first circuit line width region 232. Among them, the display panel 2, the printed circuit board 22, the flexible circuit board 23, and the above-described embodiments, the display panel Μ, printing will not be described again. The secret board 23 has phase-technical features, so the above description is based on the present invention; the display device of the strong moon, the display module and the circuit area of the flexible circuit board and the second in the flexible circuit board In addition to the electrical connection region of the circuit line width region and the (4) circuit line width display panel, the ^ route width region is set in the line width package technology in which the display system is larger than the line width of the first circuit line width region and the circuit line width region. The strength of the wire is increased. This makes the fine pitch reliable. The above description is easy to break to improve the product, and the spirit and spirit of the present invention are limited. Any equivalent modifications or alterations that are not included in the scope of the appended claims are hereby incorporated by reference. 1 is a side view of a flexible circuit board according to a preferred embodiment of the present invention; and FIG. 4 is another schematic view of a flexible circuit board according to a preferred embodiment of the present invention. • [Main component symbol description] I, 2: Display module 3: Display device II, 21: Display panel 12, 22: Printed circuit board 13, 23, 23a: Flexible circuit board 131, 231: Drive wafer 132: Wire 211 Color filter substrate 212: Thin film transistor substrate 232: First circuit line width region 233: Second circuit line width region 234: Insulation layer 235: Third circuit line width region A, 24: anisotropic conductive paste B : backlight module 13 201034543 ci : electrical connection area of display panel C2 : electrical connection area of printed circuit board d : width E edging area P line spacing S interval W : circuit trace X first width Y second width Z Third width 14