200921194 九、發明說明： 【發明所屬之技術領域】 本發明係涉及一種光學元件的貼合方法，尤其涉及 一種應用於液晶顯示裝置的光學元件的貼合方法。 【先前技術】 5,710,607號揭露了一種液晶顯示模 美國專利第 組，該液晶顯示模組包括—核，外殼㈣下而上依序 設置有-背光模組、—擴散板、—固定板及一液晶面 板。固定板上設置有一印刷電路板，印刷電路板與液晶 面板之間連接有-軟式電路板，—玻雜護板設置在液 晶面板上方並固定在外殼上。 …習知技射—般先依次纟讀背光模組、擴散板、固 定板及液晶面板，然後將黏著劑分別塗佈於液晶面板及 玻璃防護板上’再使用貼合治具將液晶面板與玻璃防護 板貼最後將其放人料光照射機内卿紫外光照射 使黏著劑硬化’從而實現液晶顯示模組與朗防護板之 間的牢固結合並防止灰塵或異物進人液晶面板與玻璃 防護板之間。 晶 …万法中，先組裝液晶顯示模组使得該液 顯示模組的公差較大’·並且在組裝完成的液晶顯示模 上塗佈黏著劑會出現黏著劑滲入液晶顯示模組内的 200921194 情況，從而影響該液晶顯示模組的顯示致果。 【發明内容】 本發明之目的係提供-種能夠提高光學元件組裂 精確度並能避免黏著劑滲人液晶顯示模细内的光學元 件的貼合方法。 為達到上述目的，該方法包括如下步驟： 首先，用黏性膠材將第-光學元件及第二光學元件 貼合在一起； 其次，用一貼合治具擠壓貼合在一起的第一光學元 件及第二光學元件，以加固第一光學元件與第二光學元 件之間的結合； 然後，通過紫外光照射使黏性膠材固化，而將第一 光學元件及第二光學元件固定在一起； 最後，將一背光模組組裝於第一光學元件或第二光 學元件上。 如上所述，本發明之光學元件的貼合方法藉由先貼 合第一光學元件及第二光學元件再組裝背光模組之方 法，使得該液晶顯示模組組裴後精確度較高；並且在貼 合過程中無黏性膠材滲入背光模組之狀況發生，從而該 液晶顯示模組的顯示品質佳。 【實施方式】 200921194 本發明光學元件的貼合方法，包括以下步驟： 首先，用黏性膠材將第一光學元件及第二光學元件 貼合；該黏性膠材可直接塗佈於第一光學元件及第二光 學元件表面，然後將第一光學元件及第二光學元件貼 合；也可先將黏性膠材製成半固化的片狀或者帶狀的貼 合片，然後將製成片狀或帶狀的貼合片的一表面貼附於 第一光學元件，另一表面貼合於第二光學元件上； 其次，將貼合後的第一光學元件及第二光學元件固 定於一貼合治具上，利用該貼合治具的作用力加固第一 光學元件與第二光學元件之間的結合； 再次，通過紫外光照射使黏性膠材或貼合片固化， 而將第一光學元件及第二光學元件固定在一起； 最後，將背光模組組裝於第一光學元件或第二光學 元件上。 為使熟知該項技藝者能更加了解本發明的特徵，特 舉實施例並配合圖式加以說明。 請參閱第一圖，本發明光學元件的貼合方法可運用 於貼合液晶顯示模組1的第一光學元件10及第二光學 元件20,該液晶顯示模組1進一步具有一背光模組30。 本發明實施例中第一光學元件10為液晶顯示模組1的 液晶面板，第二光學元件20為保護面板，該保護面板 200921194 由透光材料製成。當在貼合第一光學元件10及第二光 學元件20時，可在第一光學元件10及第二光學元件 20的表面分別塗佈黏性膠材2，如第二圖所示，然後將 第一光學元件10及第二光學元件20貼合；或者，將黏 性膠材2製成半固化的片狀或者帶狀的貼合片3，如第 三圖所示，然後將第一光學元件10及第二光學元件20 貼合於貼合片3相對的兩表面。 請參閱第四圖，將貼合後的第一光學元件10及第 二光學元件20固定於一貼合治具4上，貼合治具4產 生作用力上下擠壓第一光學元件10及第二光學元件 20,從而加固第一光學元件10與第二光學元件20之間 的貼合。 經貼合治具4作用後的第一光學元件10及第二光 學元件20再由紫外光進行照射，從而使黏性材料2固 化，進而將第一光學元件10及第二光學元件20固定在 —起° 請續參閱第一圖，黏性材料2完全固化後，將背光 模組30組裝於第一光學元件10的另一面上。組裝後的 液晶顯示模組1即可應用於電子裝置（圖中未示）中。 綜上所述，本發明光學元件的貼合方法藉由先貼合 第一光學元件10及第二光學元件20再組裝背光模組 8 200921194 30之方法，使得該液晶顯示模組1組裝的精確度較高； 並且在貼合過程中黏性膠材2不會滲入背光模組30 内，從而該液晶顯示模組1的顯示品質佳；再者，貼合 治具4僅需固定並擠壓第一光學元件10及第二光學元 件20，從而該貼合治具4的結構較簡單，從而易於設 計製作貼合治具4。 【圖式簡單說明】 第一圖係本發明背光模組的結構示意圖。 第二圖係本發明第一光學元件與第二光學元件上 直接塗佈黏性膠材後的結構示意圖。 第三圖係本發明將黏性膠材製成半固化貼合片再 貼合第一光學元件與第二光學元件的結構示意圖。 第四圖係本發明貼合治具擠壓第一光學元件及第 二光學元件的側視圖。 【主要元件符號說明】 液晶顯不板組 1 第一光學元件 10 第二光學元件 20 背光模組 30 黏性材料 2 貼合片 3 貼合治具 4 9BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bonding method of an optical element, and more particularly to a bonding method of an optical element applied to a liquid crystal display device. [Prior Art] No. 5,710,607 discloses a liquid crystal display module US patent group, the liquid crystal display module includes a core, and the outer casing (four) is provided with a backlight module, a diffusion plate, a fixing plate and a liquid crystal. panel. A printed circuit board is disposed on the fixing plate, and a flexible circuit board is connected between the printed circuit board and the liquid crystal panel, and the glass protective plate is disposed above the liquid crystal panel and fixed on the outer casing. ...scientific technology--first read the backlight module, diffuser plate, fixed plate and liquid crystal panel, then apply the adhesive to the liquid crystal panel and the glass protective plate respectively. Then use the bonding fixture to connect the liquid crystal panel with The glass protective sheet is finally placed in the light irradiation machine to illuminate the adhesive to harden the adhesive, thereby achieving a firm bond between the liquid crystal display module and the Lang shield and preventing dust or foreign matter from entering the liquid crystal panel and the glass shield. between. In the crystal method, the liquid crystal display module is assembled first, so that the tolerance of the liquid display module is large. · And the application of the adhesive on the assembled liquid crystal display mold may cause the adhesion of the adhesive into the liquid crystal display module in 200921194. , thereby affecting the display result of the liquid crystal display module. SUMMARY OF THE INVENTION An object of the present invention is to provide a bonding method capable of improving the accuracy of optical element group cracking and preventing an adhesive from infiltrating an optical element in a liquid crystal display mold. In order to achieve the above object, the method comprises the following steps: First, the first optical component and the second optical component are bonded together by a viscous adhesive; secondly, the first one is pressed and pressed together by a bonding fixture. An optical element and a second optical element for reinforcing a bond between the first optical element and the second optical element; and then curing the adhesive material by ultraviolet light irradiation, and fixing the first optical element and the second optical element Finally, a backlight module is assembled on the first optical element or the second optical element. As described above, the bonding method of the optical component of the present invention has a higher accuracy after the liquid crystal display module group is assembled by first bonding the first optical component and the second optical component to assemble the backlight module; In the process of bonding, the non-adhesive rubber material penetrates into the backlight module, so that the display quality of the liquid crystal display module is good. [Embodiment] 200921194 The bonding method of the optical component of the present invention comprises the following steps: First, the first optical component and the second optical component are bonded together by a viscous adhesive; the adhesive adhesive can be directly applied to the first The optical element and the surface of the second optical element are then bonded to the first optical element and the second optical element; or the adhesive material may be made into a semi-cured sheet or a strip-shaped bonding piece, and then made. One surface of the sheet or strip-shaped bonding sheet is attached to the first optical element, and the other surface is attached to the second optical element; secondly, the bonded first optical element and the second optical element are fixed to a bonding fixture, the force of the bonding fixture is used to strengthen the bonding between the first optical component and the second optical component; again, the adhesive or the bonding sheet is cured by ultraviolet light irradiation, and The first optical element and the second optical element are fixed together; finally, the backlight module is assembled on the first optical element or the second optical element. In order to provide a better understanding of the features of the present invention, the invention will be described in conjunction with the drawings. Referring to the first embodiment, the bonding method of the optical component of the present invention can be applied to the first optical component 10 and the second optical component 20 of the liquid crystal display module 1. The liquid crystal display module 1 further has a backlight module 30. . In the embodiment of the present invention, the first optical component 10 is a liquid crystal panel of the liquid crystal display module 1, and the second optical component 20 is a protective panel. The protective panel 200921194 is made of a light transmissive material. When the first optical element 10 and the second optical element 20 are attached, the adhesive glue 2 may be respectively coated on the surfaces of the first optical element 10 and the second optical element 20, as shown in the second figure, and then The first optical element 10 and the second optical element 20 are attached; or the adhesive material 2 is made into a semi-cured sheet or strip-shaped bonding sheet 3, as shown in the third figure, and then the first optical The element 10 and the second optical element 20 are attached to opposite surfaces of the bonding sheet 3. Referring to the fourth figure, the first optical component 10 and the second optical component 20 are attached to a bonding fixture 4, and the bonding fixture 4 generates a force to press the first optical component 10 and the first The two optical elements 20 thereby reinforcing the fit between the first optical element 10 and the second optical element 20. The first optical element 10 and the second optical element 20, which have been subjected to the bonding fixture 4, are further irradiated with ultraviolet light to cure the adhesive material 2, thereby fixing the first optical element 10 and the second optical element 20 to Continuing to refer to the first figure, after the adhesive material 2 is completely cured, the backlight module 30 is assembled on the other surface of the first optical element 10. The assembled liquid crystal display module 1 can be applied to an electronic device (not shown). In summary, the bonding method of the optical component of the present invention is performed by first assembling the first optical component 10 and the second optical component 20 to reassemble the backlight module 8 200921194 30, so that the liquid crystal display module 1 is assembled accurately. The adhesive material 2 does not penetrate into the backlight module 30 during the bonding process, so that the display quality of the liquid crystal display module 1 is good; in addition, the bonding fixture 4 only needs to be fixed and squeezed. The first optical element 10 and the second optical element 20 are such that the structure of the bonding jig 4 is relatively simple, so that the bonding jig 4 can be easily designed and manufactured. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic structural view of a backlight module of the present invention. The second figure is a schematic structural view of the first optical component and the second optical component of the present invention directly coated with a viscous adhesive. The third figure is a schematic view showing the structure in which the adhesive material is made into a semi-cured adhesive sheet and then bonded to the first optical element and the second optical element. The fourth drawing is a side view of the first optical component and the second optical component of the bonding fixture of the present invention. [Main component symbol description] LCD display panel 1 First optical component 10 Second optical component 20 Backlight module 30 Adhesive material 2 Fitting film 3 Fitting fixture 4 9