1351555 100年03月22日修正替換黄 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種導光元件及其製備方法，以及其背光模 組。 【先前技術】 [0002] 帶有側光照明背光模組之液晶顯示器，由於體積小、重 量輕、並且亮度均勻，因此在筆記本電腦、車載顯示器 、手機等領域有著廣泛之應用。背光模組係一個能夠將 分散點光源或者線光源轉化成均勻平面光源之光學機構 。由於液晶顯示器爲非發光性之顯示裝置，需要通過背 光模組才能産生顯示之功能:}-背先模組性能之好壞，往 往會直接影響液晶顯示器之秦像品'質，因此，背光模組 , -Λ 成爲液晶顯示器中最重要之元件。 [0003] 如第一圖與第二圖所示，先前技術之背光模組1包括一導 光板10，若干與該導光板10相靠近之點光源12，若干設 置於該導光板上方之若干光學膜片（圖未示），及一框架 14，用於固持及容納該導光板10、點光源12與該光學膜 片。背光模組之傳統工藝係將該導光板10與該框架14分 別製成後，再進行組裝作業，故一般該導光板10與該框 架14進行簡易組裝時，該導光板1 0與該框架14之間將會 産生一微小組合間隙16。故該導光板10與該框架14之邊 界上將産生漏光，從而導致邊界上有輝線與暗線產生及 光量能損耗等光學不良現象。 [0004] 目前，爲減少導光板與框架之邊界光學不良現象之影響 ，業界一般採用以下幾種技術手段： 094118377 表單編號Α0101 第4頁/共23頁 1003099779-0 1351555 - 100年03月22日梭正替換頁 [0005] (1)反射片貼合設計：將高反射式貼片貼於導光板與框 架之接合處，用於減少光量能之損耗，但往往因爲反射 光量能控制不易，造成邊界仍有輝線與暗線産生。另， 框架亦可採用高反射塑膠材料製成，亦能達到減少光量 能之損耗之效果，但其同樣於邊界處産生輝線與暗線。 [0006] (2)於靠近框架之導光板邊緣處作光學修正設計：主要 係將導光板反射面邊緣處之光學網點密度作增減動作， 以改善邊界輝線與暗線之光學問題，但是往往組裝間隙 仍會造成光學與視效上之不對稱性。或於靠近框架之導 光板出射面之邊緣處貼上一片低反射式光學膜片作爲減 光與遮光作用，但是該設計將增加組裝工時與成本。 · [0007] (3)擴散片設計：於擴散片上印刷圖案.，’減少框架與導 光板亮度之對比度，但是，該設計仍有光量能損耗之缺 點，而且提高背光模組之材料成本。 [0008] 綜上所述，現有之背光模組經過上述幾種技術手段仍不 能經濟有效地減少導光板與框架之邊界上有輝線與暗線 産生及光量能損耗等光學不良現象。 [0009] 有鑒於此，有必要提供一種簡單且經濟得減少導光板與 框架之邊界上有輝線與暗線產生及光量能損耗之導光元 件及其製備方法，以及採用該導光元件之背光模組實爲 必要。 【發明内容】 [0010] 下面將以若干實施例說明一種簡單且經濟之減少導光板 與框架邊界上有輝線與暗線產生及光量能損耗之導光元 094118377 表單編號A0101 第5頁/共23頁 1003099779-0 1351555 100年03月22日梭正 件及其製備方法，以及採用該導光元件之背光模組。 [0011] 爲實現上述内容，提供一種導光元件，其包括： [0012] —導光板，其包括一入射面，一與該入射面相連之出射 面，一與該出射面相對應之反射面，及三側面； [0013] 及一框架，該框架與該導光板三側面接合成一體，且該 導光板三側面中部分側面或全部側面形成若干周期排列 之微結構。 [0014] 優選之，該導光板包括透明樹脂材料，如聚甲基丙烯酸 曱酯（ΡΜΜΑ)、聚碳酸酯（PC)及二氧化鈦和/或二氧化矽 粒子。 ^ [0015] 優選之，該框架包括高反射係數之有色樹脂材料及二氧 化鈦和/或二氧化矽粒子。 [0016] 以及，提供一種導光元件之製備方法，該導光元件包括 :一導光板，其包括一入射面，一與該入射面相連之出 射面，一與該出射面相對應之反射面，及三側面；及一 與該導光板相配合之框架，該導光板三側面中部分側面 或全部側面形成若干周期排列之微結構，該框架與該導 光板三側面接合成一體，其中，所述之導光板與該框架 爲雙色注射成型技術製備。 [0017] 以及，提供一種背光模組，其包括： [0018] 一 光源； [0019] 一導光元件，其包括一導光板與一框架，該導光板包括 一靠近該光源之入射面，一與該入射面相連之出射面， 094118377 表單編號A0101 第6頁/共23頁 1003099779-0 1351555 [0020] [0021] [0022] [0023] [0024] 094118377 100年03月22日按正替换頁 一與該出射面相對應之反射面，及三側面，該導光板三 側面中部分側面或全部側面形成若干周期排列之微結構 ，該框架與該導光板三側面接合成一體。 與先前技術相比較，本實施例之導光元件利用雙色注射 成型製造技術一體成型，使得導光元件中之導光板與框 架之間之間隙被消除，從而減少光量能損耗。並且於導 光板與框架之接合處設計各種先學散射微結構，使得導 光板與框架之間邊界光學不良現象得到有效改善。另， 由於導光/t件爲-體成型技術製傷，故可同時降低背光 模組材料成本與增加背紐組之域速度，以及增加背 光模組之機械強度。 ' 二… ：. . 【實施方式】 ：· y； ' Ϊ. 夺Q Q附圖與複數實施例對本發明之導光元件與採 導光元件之背光模組作進一步得詳細說明。 月起參閱第三圖、第四圖與第五圖，本發明第一實施 土 "导光元件34 ’其包括一導光板342，該導光板 342匕括—入射面3422，一與該入射面3422相連之出射 面3424 ’―與該出射面3424相對應之反射面（圖未示）’ 及除°玄入射面3422外之三側面3426 ;以及一框架344， °亥框架344與該導光板三側面3426接合成-體。 本實施例中該導光板342 選用透明聚碳酸酯材料，該框架 344選用星女成 ^ 有向反射係數之白色聚碳酸酯。該導光元件34 係採用雙色注射成型技術一體成型製備。 又色注射成型有兩種方法：第一種係使用兩副模具，於 表單編號A0101 第7頁/共23頁 1003099779-0 1351555 100年03月22日接正替換^ 兩台普通注射機中分別注射成型，先注射成型嵌件，再 注射另一種色澤之材料進行包封之成型方法。第二種係 使用同一副模具，於具有兩個注射係統之雙色注射機上 將不同品種或不同色澤之材料同時或先後注射入模具内 之成型方法。本實施例之導光元件34採用第二種雙色注 射成型方法。 [0025] 由於該導光元件34採用雙色注射成型技術製備，故可保 證其中之導光板342與框架344之間沒有間隙，從而減少 光量能損耗；而且由於該框架344具有高反射性，光束於 導光板342與框架344之間可進行有效之反射，而提高光 量能利用率。 …… [0026] 可以選擇的是，本發明導光·元:件#之導光板包括透明樹 脂材料，如聚碳酸酯（PC)、聚曱基丙烯酸甲酯（PMMA)及 其改性材料等，或者進一步地，當導光板採用聚碳酸酯 基體材料時可添加聚甲基丙烯酸甲酯粒子，反之當導光 板採用聚曱基丙烯酸曱酯基體材料時可添加聚碳酸酯粒 子。本發明導光元件中之框架包括具有高反射係數之有 色樹脂材料及其改性材料，如白色聚碳酸酯、白色聚甲 基丙烯酸甲酯等。上述改性材料爲上述基體中摻雜若干 發光粒子，該發光粒子包括二氧化鈦（Ti〇2)與二氧化矽 (Si〇2)。導光板與框架可採用不同之樹脂材料，但爲使 導光板與框架之結合強度更好，通常選用不同顏色之同 一種樹脂材料進行雙色注射成型。 [0027] 如第三圖、第四圖與第五圖所示，本實施例之導光元件 34與若干LED光源32結合可組裝成一背光模組30。該若 094118377 表單編號A0101 第8頁/共23頁 1003099779-0 1351555 100年 03月 22 曰 干LED光源32靠近導光元件34之導光板入射面3422。另 ’爲進一步提高該背光模組3〇之光學性能’還可於該導 光板342之反射面3428下方設置反射片36，於導光板342 之出射面3424上方依次設置擴散片37與增光片38等光學 膜片。爲使該導光元件34達到容納上述反射片36、擴散 片37與增光片38之效果，該導光元件34中之框架344可 沿導光板342上下方向做適當之厚度延伸。 [0028] 爲進一步解決本發明導光元件之導光板與框架之間由於 反射光量能控制不易，造成邊界仍有輝線與暗線産生， 本發明還可於導光元件中之導光板與框架之部分接合處 形成相互配合之各種微結構V ' : .彳. .._ · . 二 [0029] ’ 請參閱第六圖，本發明第二驚施魏狭供•事光元件40 ’ 其結構與第一實施例之導光元件34相似，其不同在於： 在導光板42三側面形成若干周期排列之v型微結構422， 而且該框架44與該V型微結構422相緊密接合。本實施例 中導光板42之V型微結構422包括V型凸起與V型凹槽。 [0030] 上述結構不僅可通過控制上述¥型微結構之排列密度以控 制光束被均勻反射而減少邊界處産生輝線與暗線，而且 能加強該導光板42與框架44之結合強度。 [0031] 可以理解’於本發明導光元件中之導光板之三側面中部 分側面或全部側面形成與框架相配合之微結構並不限於v 塑微結構’該微結構還可包括半圓形微結構，頂角爲純 角之V型微結構等等。 [0032] 爲加強導光元件之整體機械強度，本發明導光元件中之 094118377 表單编號A0101 第9頁/共23 w ^ ^ ^ 1003099779-0 1351555 100年03月22日伊正替換？ϊ· 導光板三側面中部分側面或全部三側面可適當伸入框架 主體，且該導光板三側面伸入框架主體並形成插入端， 其包括矩形凸塊、三角形凸塊與弧形凸塊。 [0033] 請參閱第七圖，本發明第三實施例提供一導光元件50， 其結構與第一實施例相似，其不同在於：每個導光板52 之側面伸入框架54主體形成一插入端，並與該框架接合 成一體。該插入端爲矩形凸塊，其包括沿出射面524延伸 之延伸面5 2 4 /與沿反射面5 2 5延伸之延伸面5 2 5 ，以 及連接該延伸面524 /與525 /之侧面526，該側面526與 該延伸面524 >及525 ’相垂直。 [0034] 請參閱第八圖，本發明第四舍:难知提.供一導光元件60， ·» ·, . 其結構與第三實施例相似，#不>切在於：每個導光板62 側面伸入框架64主體形成之插入端爲三角形凸塊，其包 括沿出射面6 2 4延伸之延伸面6 2 4 /、沿反射面6 2 5延伸 之延伸面625 /、連接該延伸面624 /之側i面626與連接 延伸面625 /之側面627。該兩__側面626、627相交形成一 從導光板62—側突出之三角形凸起。 [0035] 請參閱第九圖，本發明第五實施例提供一導光元件70， 其結構與第三實施例相似，其不同在於：每個導光板72 側面伸入框架74主體形成之插入端爲弧形凸塊，其包括 沿出射面7 2 4延神之延伸面7 2 4 "、沿反射面7 2 5延伸之 延伸面725 /，以及連接該延伸面724 /與725 >之弧形 面726 〇 [0036] 請參閱第十圖，本發明第六實施例提供一導光元件80， 094118377 表單編號Α0101 第10頁/共23頁 1003099779-0 1351555 100年03月22日後正替換頁 其結構與第三實施例相似，導光板82伸入框架84主體之 插入端爲矩形凸塊，其包括沿出射面824延伸之延伸面 824>與沿反射面825延伸之延伸面825'，以及連接該 延伸面824 一與825'之垂直側面826。其不同在於：還 在導光板82之延伸面824 >與825 /處形成周期排列之V 型微結構828,而且該框架84與該V型微結構828相緊密 接合。 [0037] 請參閱第十一圖，本發明第七實施例提供一導光元件9〇 ，其結構與第六實施例相似，其不同在於：還在導光板 92之側面926形成V型微結構928，框架94與出射面延伸 面924 一、反射面延伸面925^龠側面令26之γ型微結構1351555 Correction of replacement of yellow on March 22, 2014. Description of the Invention: [Technical Field] [0001] The present invention relates to a light guiding element, a method of fabricating the same, and a backlight module thereof. [Prior Art] [0002] Liquid crystal displays with side-lit backlight modules have a wide range of applications in notebook computers, car displays, and mobile phones due to their small size, light weight, and uniform brightness. The backlight module is an optical mechanism that converts a scattered point source or a line source into a uniform planar source. Since the liquid crystal display is a non-illuminating display device, it is required to pass through the backlight module to generate a display function:} - the performance of the first module is often directly affected by the quality of the liquid crystal display, therefore, the backlight mode Group, -Λ Become the most important component in the LCD display. As shown in the first and second figures, the backlight module 1 of the prior art includes a light guide plate 10, a plurality of point light sources 12 adjacent to the light guide plate 10, and a plurality of opticals disposed above the light guide plate. A diaphragm (not shown), and a frame 14 for holding and accommodating the light guide plate 10, the point light source 12 and the optical film. In the conventional process of the backlight module, the light guide plate 10 and the frame 14 are separately formed, and then the assembly operation is performed. Therefore, when the light guide plate 10 and the frame 14 are simply assembled, the light guide plate 10 and the frame 14 are generally assembled. A slight combined gap 16 will be created between. Therefore, light leakage occurs at the boundary between the light guide plate 10 and the frame 14, resulting in optical defects such as generation of light and dark lines and loss of light energy at the boundary. [0004] At present, in order to reduce the influence of optical defects on the boundary between the light guide plate and the frame, the following technical means are generally adopted in the industry: 094118377 Form No. 1010101 Page 4/Total 23 Page 1003099779-0 1351555 - March 22, 100 Shuttle replacement page [0005] (1) Reflective sheet bonding design: The high-reflection patch is attached to the joint between the light guide plate and the frame to reduce the loss of light energy, but often because the amount of reflected light can be controlled, resulting in There are still glow lines and dark lines on the boundary. In addition, the frame can also be made of highly reflective plastic material, which can also reduce the loss of light energy, but it also produces glow and dark lines at the boundary. [0006] (2) optical correction design at the edge of the light guide plate near the frame: mainly to increase or decrease the optical dot density at the edge of the reflective surface of the light guide plate to improve the optical problem of the boundary and dark lines, but often assemble The gap still causes optical and visual asymmetry. Or attach a low-reflection optical film to the edge of the exit surface of the light guide near the frame for dimming and shading, but this design will increase assembly time and cost. [0007] (3) Diffusion sheet design: Print the pattern on the diffusion sheet. 'Reducing the contrast between the frame and the brightness of the light guide plate. However, this design still has the disadvantage of loss of light quantity and improves the material cost of the backlight module. In summary, the conventional backlight module can not economically and effectively reduce the optical defects such as the occurrence of the bright and dark lines and the loss of the light amount on the boundary between the light guide plate and the frame through the above several technical means. [0009] In view of the above, it is necessary to provide a light guiding element which is simple and economical to reduce the generation of light and dark lines at the boundary between the light guide plate and the frame, and the method for preparing the light quantity, and the preparation method thereof, and the backlight module using the light guiding element The group is really necessary. SUMMARY OF THE INVENTION [0010] In the following, a simple and economical light guide 094118377 for reducing the generation of light and dark lines and the loss of light energy at the boundary between the light guide plate and the frame will be described in several embodiments. Form No. A0101 Page 5 of 23 1003099779-0 1351555 The shuttle valve and its preparation method, and the backlight module using the light guiding element. [0011] In order to achieve the above, a light guiding device is provided, comprising: [0012] a light guide plate comprising an incident surface, an exit surface connected to the incident surface, and a reflective surface corresponding to the exit surface, And a three-sided side; [0013] and a frame, the frame is integrally joined to the three sides of the light guide plate, and a part of the side or all sides of the three sides of the light guide plate form a plurality of periodic microstructures. [0014] Preferably, the light guide plate comprises a transparent resin material such as poly(methyl methacrylate), polycarbonate (PC), and titanium dioxide and/or cerium oxide particles. [0015] Preferably, the frame comprises a colored resin material having a high reflectance and titanium dioxide and/or cerium oxide particles. [0016] A method for fabricating a light guiding element, comprising: a light guide plate, comprising an incident surface, an exit surface connected to the incident surface, and a reflective surface corresponding to the exit surface, And a three-sided side; and a frame that cooperates with the light guide plate, a part of the side or all sides of the three sides of the light guide plate form a plurality of periodically arranged microstructures, and the frame is integrally joined with the three sides of the light guide plate, wherein the The light guide plate and the frame are prepared by a two-color injection molding technique. [0017] A backlight module is provided, comprising: [0018] a light source; [0019] a light guiding component comprising a light guide plate and a frame, the light guide plate comprising an incident surface adjacent to the light source, The exit surface connected to the incident surface, 094118377 Form No. A0101 Page 6 / Total 23 Page 1003099779-0 1351555 [0020] [0024] [0024] 094118377 October 22, 100 Press the replacement page a reflective surface corresponding to the exit surface, and three sides, a part of the side or all sides of the three sides of the light guide plate form a plurality of periodically arranged microstructures, and the frame is integrally joined with the three sides of the light guide plate. Compared with the prior art, the light guiding member of the present embodiment is integrally molded by the two-color injection molding manufacturing technique, so that the gap between the light guide plate and the frame in the light guiding member is eliminated, thereby reducing the amount of light energy loss. Moreover, various pre-study scattering microstructures are designed at the junction of the light guide plate and the frame, so that the optical defect between the light guide plate and the frame is effectively improved. In addition, since the light guiding/t piece is made by the body forming technology, the material cost of the backlight module can be reduced at the same time, the domain speed of the back button group can be increased, and the mechanical strength of the backlight module can be increased. [Embodiment]: 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Referring to the third, fourth and fifth figures, the first embodiment of the present invention includes a light guide plate 342, which includes an entrance surface 3422, and an incident surface. The exit surface 3424' of the surface 3422 is connected to a reflecting surface (not shown) corresponding to the emitting surface 3424 and three sides 3426 except the concave incident surface 3422; and a frame 344, a frame 344 and the guide The three sides 3426 of the light plate are joined into a body. In the embodiment, the light guide plate 342 is made of a transparent polycarbonate material, and the frame 344 is made of a white polycarbonate having a directional reflection coefficient. The light guiding element 34 is integrally formed by a two-color injection molding technique. There are two methods for color injection molding: the first system uses two pairs of molds, which are respectively replaced in Form No. A0101, page 7 / 23 pages, 1003099779-0 1351555, March 22, 2005. Injection molding, first injection molding inserts, and then injection of another color material for encapsulation molding method. The second method uses the same pair of molds to simultaneously or sequentially inject different materials or materials of different colors into the mold on a two-color injection machine having two injection systems. The light guiding element 34 of this embodiment employs a second two-color injection molding method. [0025] Since the light guiding element 34 is prepared by a two-color injection molding technique, it is ensured that there is no gap between the light guide plate 342 and the frame 344, thereby reducing the amount of light energy loss; and since the frame 344 has high reflectivity, the light beam is The light guide plate 342 and the frame 344 can be effectively reflected to improve the utilization of the light amount. [0026] Alternatively, the light guide plate of the light guide unit of the present invention includes a transparent resin material such as polycarbonate (PC), polymethyl methacrylate (PMMA), and modified materials thereof. Or, further, when the light guide plate is made of a polycarbonate base material, polymethyl methacrylate particles may be added, and when the light guide plate is made of a polydecyl methacrylate base material, polycarbonate particles may be added. The frame in the light guiding member of the present invention comprises a colored resin material having a high reflection coefficient and a modifying material thereof, such as white polycarbonate, white polymethyl methacrylate or the like. The above modified material is doped with a plurality of luminescent particles, and the luminescent particles include titanium oxide (Ti〇2) and cerium oxide (Si〇2). The light guide plate and the frame may be made of different resin materials, but in order to make the light guide plate and the frame have better bonding strength, the same resin material of different colors is usually used for two-color injection molding. [0027] As shown in the third, fourth, and fifth figures, the light guiding element 34 of the present embodiment can be assembled into a backlight module 30 in combination with a plurality of LED light sources 32. The 094118377 Form No. A0101 Page 8 of 23 1003099779-0 1351555 100 March 22 曰 The dry LED light source 32 is close to the light guide plate entrance surface 3422 of the light guiding element 34. In addition, in order to further improve the optical performance of the backlight module 3, a reflection sheet 36 may be disposed under the reflection surface 3428 of the light guide plate 342, and a diffusion sheet 37 and a brightness enhancement sheet 38 may be sequentially disposed above the emission surface 3424 of the light guide plate 342. Optical film. In order to achieve the effect of accommodating the light guiding element 34 to the reflection sheet 36, the diffusion sheet 37, and the brightness enhancement sheet 38, the frame 344 of the light guiding member 34 can be extended in a suitable thickness along the vertical direction of the light guide plate 342. [0028] In order to further solve the problem that the amount of reflected light can be easily controlled between the light guide plate and the frame of the light guiding element of the present invention, and the boundary still has a bright line and a dark line, the present invention can also be used for the light guide plate and the frame part of the light guiding element. The joint forms a variety of microstructures V ' : : . . . . . . . [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ The light guiding element 34 of an embodiment is similar in that: a plurality of periodically arranged v-type microstructures 422 are formed on three sides of the light guide plate 42, and the frame 44 is in close engagement with the V-shaped microstructures 422. The V-shaped microstructure 422 of the light guide plate 42 in this embodiment includes a V-shaped protrusion and a V-shaped groove. [0030] The above structure can not only reduce the light-emitting line and the dark line at the boundary by controlling the arrangement density of the above-mentioned ¥-type microstructure to control the light beam to be uniformly reflected, but also enhance the bonding strength between the light guide plate 42 and the frame 44. [0031] It can be understood that the microstructure of the side or all sides of the three sides of the light guide plate in the light guiding plate of the present invention is not limited to the v-shaped microstructure. The microstructure may further include a semi-circular shape. The microstructure, the apex angle is a pure angle V-shaped microstructure, and the like. [0032] In order to enhance the overall mechanical strength of the light guiding element, 094118377 in the light guiding element of the present invention, Form No. A0101, Page 9 / Total 23 w ^ ^ ^ 1003099779-0 1351555 Is the replacement of Yizheng on March 22, 100?部分· Partial or all three sides of the three sides of the light guide plate may extend into the frame body, and the three sides of the light guide plate extend into the frame body and form an insertion end, which comprises a rectangular bump, a triangular bump and an arc bump. Referring to FIG. 7, a third embodiment of the present invention provides a light guiding element 50 having a structure similar to that of the first embodiment, except that the side of each light guiding plate 52 extends into the main body of the frame 54 to form an insertion. The end is joined to the frame. The insertion end is a rectangular protrusion including an extension surface 5 2 4 extending along the exit surface 524 and an extension surface 5 2 5 extending along the reflection surface 52 2 , and a side surface 526 connecting the extension surface 524 / and 525 / The side 526 is perpendicular to the extended faces 524 > 525 '. [0034] Please refer to the eighth figure, the fourth aspect of the present invention: it is difficult to know that a light guiding element 60, ·» ·, . Its structure is similar to the third embodiment, #不>; cut in: each guide The insertion end of the light plate 62 extending into the main body of the frame 64 is a triangular protrusion, and includes an extending surface 6 2 4 extending along the exit surface 6 2 4 , an extending surface 625 extending along the reflecting surface 6 25 , and connecting the extension. Face 624 / side i face 626 and side face 627 connecting extension face 625 /. The two __ sides 626, 627 intersect to form a triangular projection that protrudes from the side of the light guide plate 62. [0035] Referring to the ninth embodiment, a fifth embodiment of the present invention provides a light guiding element 70, the structure of which is similar to that of the third embodiment, except that the side of each light guiding plate 72 extends into the insertion end formed by the main body of the frame 74. An arcuate bump comprising an extended surface 7 2 4 " along the exit surface 7 2 4 , an extended surface 725 / extending along the reflective surface 7 2 5 , and connecting the extended surface 724 / and 725 > Curved surface 726 〇 [0036] Referring to the tenth figure, a sixth embodiment of the present invention provides a light guiding element 80, 094118377 Form No. 101 0101 Page 10 / Total 23 Page 1003099779-0 1351555 Replacement after March 22, 100 The structure of the page is similar to that of the third embodiment. The insertion end of the light guide plate 82 extending into the main body of the frame 84 is a rectangular protrusion including an extended surface 824 extending along the exit surface 824 and an extended surface 825' extending along the reflective surface 825. And a vertical side 826 connecting the extension faces 824 to 825'. The difference is that a periodically arranged V-shaped microstructure 828 is formed at the extension surface 824 > and 825 / of the light guide plate 82, and the frame 84 is in close engagement with the V-shaped microstructure 828. Referring to FIG. 11 , a seventh embodiment of the present invention provides a light guiding element 9 〇 having a structure similar to that of the sixth embodiment, except that a V-shaped microstructure is also formed on the side 926 of the light guide plate 92 . 928, the frame 94 and the exit surface extension surface 924, the reflective surface extension surface 925 ^ 龠 side of the 26 γ-type microstructure
’ t .... - V 928相緊密接合。 '*Λ ； ' . V , ... .....:-. .:K::..:. . .： - ·，i-- [0038] 可以理解，本發明第三實施例至第七實施例所述之導光 元件中，導光板伸入框架之插入端爲矩形、三角形或弧 形凸塊，其部分側面或全部側面”可形成適當之微結構 ，用於提高光散色效果》該微結構包括V型微結構、半圓 形微結構、頂角爲鈍角之V犁#結構等。另，該插入端並 不限於矩形、三角形與弧形，只要其能滿足提高色散能 力及較易製備即可。 [0039] 本發明第一實施例至第七實施例中之導光元件中，導光 板入射面由於需靠近光源，故導光元件之框架未與導光 板入射面緊密連接。爲進一步提高框架之整體機械強度 ，本發明之背光模組還可以於入射面上下側形成兩框架 側邊，並與導光板兩側面之框架侧邊相連接。 094118377 表單編號Α0101 第11頁/共23頁 1003099779-0 1351555 100年〇3月22日接正眷換吉 請一起參閱第十二圖與第十三圖，本發明第八實施例提 供一採用本發明導光元件之背光模組1()〇，其包括：若干 LED光源1〇1 ; 一導光元件1〇3，其包括，導光板1〇2與一 框架104，該導光板包括_靠近該led光源101之入射面 1022。該導光元件1〇3結構與第一實施例相似，其不同在 於：該導光元件103還包括於入射面丨〇22上下側形成兩框 架側邊1044、1042，並連接導光板入射面左右兩側之框 架側邊1046、1048。框架兩側邊1044，1042之間用於 &置:¾干LED光源1〇1。可以理解，本實施例之導光板入 射面1022可適當部分伸入該兩框架側邊丨〇44、1 042，只 要其滿足伸入該兩框架側邊1M4'、1〇42之坪分不影響入 射面之接受光束能力，此結牆可增加脅光模组之機械強 度。 、' 综上所述，本發明之導光元件與光源結合可形成背光模 組，该光源包括發光二極體（LED)或冷陰極熒光管 (CCFL)。爲了進—步提高背光模組之光學性能，本發明 之導光元件可於導光板出射面、反射面與入射面分別或 同時形成各種微結構。 本發明之導光元件利用雙色注射成型製造技術一體成型 ’使得導光tl件中之導光板與框架之間之間隙被消除， - 亚i於導无扳與柩笨之接合處設 計各種光學散射微結構，使得導光板與框架之間邊界光 子不良現象得到有致改P另，由於導光元件爲一體成 型技術製備’故可同時降低背光模組材料成本與增加背 光模組組裝速度’以及增加背光模组之機械強度。 094118377 [0040] [0041] [0042] 1003099779-0 135.1555 100年03月22日修正替換頁 [0043] 另，本領域技術人員還可於本發明精神内做其他變化， 當然，這些依據本發明精神所做之變化，都應包含在本 發明所要求保護的範圍之内。 【圖式簡單說明】 [0044] 第一圖係先前技術背光模組之結構示意圖。 [0045] 第二圖係第一圖沿II-II直線之截面示意圖。 [0046] 第三圖係第一實施例之導光元件及其背光模組之結構示 意圖。 [0047] 第四圖係第三圖IV-IV部分之放大示意圖。 [0048] 第五圖係第三圖沿V-V直線之;截面示意圖。 [0049] 第六圖係第二實施例導光元件之戴面示i圖。 [0050] 第七圖係第三實施例導光元件之戴面示意圖。 [0051] 第八圖係第四實施例導光元件之戴面示意圖。 [0052] 第九圖係第五實施例導光元件之截面示意圖。 [0053] 第十圖係第六實施例導光元件之截面示意圖。 [0054] 第十一圖係第七實施例導光元件之截面示意圖。 [0055] 第十二圖係第八實施例背光模組之截面示意圖。 [0056] 第十三圖係第十二圖沿X111 -X111直線之截面示意圖。 【主要元件符號說明】 [0057] 背光模組：30，100， [0058] LED光源：32，101 094118377 表單編號A0101 第13頁/共23頁 1003099779-0 1351555 100年03月22日修正替換頁 [0059] 導光元件：34, 40，50，60，70, 80， 90， 103 [0060] 導光板：342，- 42，52，62，72, 82， 92， 102 [0061] 框架：344，44，54，64，74，84，94，104 [0062] 入射面：3 4 2 2， 1022 [0063] 出射面：3424, 524， 624， 724, 824， [0064] 三側面：3426, [0065] 反射面：3428, 525, 625, 725, 825 [0066] 反射片：36， [0067] 擴散片：37 [0068] 增光片：38 [0069] V型微結構：422，828，928 [0070] 出射面之延伸面 :524 一，624 ' 724 ' 824 ' [0071] 反射面之延伸面 :525 ' 625 ' 725 ' 825 一， [0072] 延伸面之侧面： 526， 626， 627 [0073] 延伸面之弧形面 ：726 [0074] 延伸面之垂直側面：826 [0075] 導光板之側面： 926 [0076] 入射面上下側之框架側邊：1044， 1042 924 925 表單編號A0101 第14頁/共23頁 094118377 1003099779-0 1351555 100年03月22日修正替換頁 [0077] 入射面左侧之框架側邊：1 046，1048 094118377 表單編號A0101 第15頁/共23頁 1003099779-0't .... - V 928 is tightly joined. '*Λ ; ' . V , ... ..::. .: K::..:. . . : - ·, i-- [0038] It can be understood that the third embodiment of the present invention In the light guiding element according to the seventh embodiment, the insertion end of the light guide plate into the frame is a rectangular, triangular or curved bump, and part of the side or all sides thereof may form a suitable microstructure for improving light scattering. Effect: The microstructure includes a V-shaped microstructure, a semi-circular microstructure, a V-p structure with an obtuse angle, etc. Further, the insertion end is not limited to a rectangle, a triangle, and an arc, as long as it satisfies the ability to improve dispersion. [0039] In the light guiding elements of the first to seventh embodiments of the present invention, since the incident surface of the light guide plate needs to be close to the light source, the frame of the light guiding element is not closely related to the incident surface of the light guide plate. In order to further improve the overall mechanical strength of the frame, the backlight module of the present invention can also form two frame side edges on the lower side of the incident surface and be connected to the frame side edges of the two sides of the light guide plate. 094118377 Form No. 1010101 Page 11 / Total 23 pages 1003099779-0 1351555 100 years old on March 22 Referring to the twelfth and thirteenth drawings, an eighth embodiment of the present invention provides a backlight module 1() using the light guiding element of the present invention, comprising: a plurality of LED light sources 1〇1; a light guiding element 1 〇3, comprising: a light guide plate 1〇2 and a frame 104, the light guide plate includes an incident surface 1022 adjacent to the LED light source 101. The structure of the light guiding element 1〇3 is similar to that of the first embodiment, and the difference is: The light guiding element 103 further includes two frame side edges 1044 and 1042 formed on the upper and lower sides of the entrance surface 22, and is connected to the frame side edges 1046 and 1048 on the left and right sides of the light incident plate entrance surface. Between the sides of the frame 1044 and 1042 For the & setting: 3⁄4 dry LED light source 1〇 1. It can be understood that the light guide plate incident surface 1022 of the embodiment can be appropriately extended into the two frame side edges 44, 1042, as long as it meets the two The grading of 1M4' and 1〇42 on the side of the frame does not affect the ability of the incident surface to receive the light beam. This wall can increase the mechanical strength of the damper module. 'In summary, the light guiding element of the present invention is combined with the light source. Forming a backlight module, the light source comprising a light emitting diode (LED) or a cold cathode fluorescent tube (CCFL). In order to further improve the optical performance of the backlight module, the light guiding element of the present invention can form various microstructures respectively on the exit surface, the reflective surface and the incident surface of the light guide plate. The light guiding element of the present invention utilizes two colors. The injection molding manufacturing technology is integrally formed 'the gap between the light guide plate and the frame in the light guiding t1 is eliminated, and the various optical scattering microstructures are designed at the joint of the guide and the unbridled, so that the light guide plate and the frame The photon defect phenomenon between the boundary is obtained. In addition, since the light guiding element is prepared by the integral molding technology, it can reduce the material cost of the backlight module and increase the assembly speed of the backlight module, and increase the mechanical strength of the backlight module. 094118377 [0042] [0042] [0042] 1003099779-0 135.1555 Correction replacement page of March 22, 2001 [0043] Further, those skilled in the art can also make other changes within the spirit of the present invention. Of course, these are in accordance with the spirit of the present invention. Changes made are intended to be included within the scope of the invention as claimed. [Simple Description of the Drawings] [0044] The first figure is a schematic structural view of a prior art backlight module. [0045] The second figure is a schematic cross-sectional view of the first line along the line II-II. [0046] The third drawing is a schematic view showing the structure of the light guiding element of the first embodiment and its backlight module. [0047] The fourth figure is an enlarged schematic view of a portion of the third section IV-IV. [0048] The fifth figure is a straight line along the line V-V; a schematic cross-sectional view. [0049] FIG. 6 is a front view showing the light guiding element of the second embodiment. [0050] The seventh figure is a schematic view of the wearing surface of the light guiding element of the third embodiment. [0051] FIG. 8 is a schematic view showing the wearing of the light guiding element of the fourth embodiment. [0052] A ninth drawing is a schematic cross-sectional view of a light guiding element of a fifth embodiment. [0053] FIG. 10 is a schematic cross-sectional view showing a light guiding element of a sixth embodiment. 11 is a schematic cross-sectional view showing a light guiding element of a seventh embodiment. [0055] FIG. 12 is a schematic cross-sectional view of a backlight module of an eighth embodiment. [0056] Figure 13 is a schematic cross-sectional view of the twelfth figure along the line X111-X111. [Main component symbol description] [0057] Backlight module: 30,100, [0058] LED light source: 32,101 094118377 Form number A0101 Page 13 of 23 1003099779-0 1351555 Correction replacement page on March 22, 100 [0059] Light guiding elements: 34, 40, 50, 60, 70, 80, 90, 103 [0060] Light guide plates: 342, - 42, 52, 62, 72, 82, 92, 102 [0061] Frame: 344 , 44, 54, 64, 74, 84, 94, 104 [0062] Incident plane: 3 4 2 2, 1022 [0063] Exit surface: 3424, 524, 624, 724, 824, [0064] Three sides: 3426, Reflecting surface: 3428, 525, 625, 725, 825 [0066] Reflecting sheet: 36, [0067] Diffusion sheet: 37 [0068] Brightening sheet: 38 [0069] V-shaped microstructure: 422, 828, 928 [0070] The extension surface of the exit surface: 524 I, 624 '724 ' 824 ' [0071] The extension surface of the reflection surface: 525 ' 625 ' 725 ' 825 one, [0072] The side of the extension surface: 526, 626, 627 [ 0073] Curved face of the extended face: 726 [0074] Vertical side of the extended face: 826 [0075] Side of the light guide: 926 [0076] Frame side of the lower side of the incident face: 1044, 1042 924 925 Form No. A0101 Page 14 of 23 094118377 1003099779-0 1351555 Correction replacement page on March 22, 100 [0077] Frame side on the left side of the entrance surface: 1 046,1048 094118377 Form No. A0101 Page 15 of 23 Page 1003099779-0