200823539 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種二合一導光板。 1：先前技術】 用來提供©辆予液晶齡料光學顯綠之習知背光模組中，有如 美國專利第5951现號(以下稱「前案」）所揭示者。 • 該前案之背光模組主要由光源、導光板、反射片、擴散片及稜鏡片所 、，且成其中5亥光源可設置於導光板之側邊，並將光線射入至該導光板；該 ‘光板之制在於導引光線之傳輸路徑，使光線由導光板之出光面均句出 先；該反射片係相對設置於該導光板之絲，將絲由導光板之底面及設 於底面之微結構出光之光線再次反射進入該導光板内，以提高光線之使用 率；該擴散片及稜鏡片則係相對設置於導光板之出光面依序設置，俾使由 Φ 導光板出光面之出光之光線分佈更加均勻，以提高液晶顯示器面板之輝度 及均勻性。 唯此一前案仍有以下諸缺點： 1.當部份姚徑由導光板底部穿出，雖設有反射片以回收該光線再次反 射進入該導光板内’但該光路徑在導紐與反則間再姐射及再次 折射進入導光板内，仍易造成光損失，降低其出光效率。 2‘必須將反射餘裝、固裝於導光板之底部，增加作f程序與製造成本。 3.有關該反射片與導光板之組合，大面積且薄化後之導光板及反射片極 5 200823539 易發生赵曲(warp)現象，如此易造成光I馬合(wet-out)現象，而顯現其缺 本案發明人有鑒於此，乃加研究改良，揭示出本發明新穎之二合一導 光板。 【發明内容】 本發明之目的旨在提供一種二合一導光板，係包括：一導光板；以及 一设有反射擴散結構（Reflective diffusing structure)之反射構件 • (Reflection member)-體成型設於該導光板内之底部或導光板最底部， 由疋將來自背光模組側向光源之入射光加以擴散、反射至導光板頂端上之 光學薄膜組(optical film set)以增加光亮度及光均勻度者；並藉此簡化 光學元件之組裝，減少光損失’從而增加出光效率，節省電能，並降低製 造及操作成本者。 本發明之可取貫體，可由以下說明書配合所附諸圖式而得以明晰之。 【實施方式】 參閱第1，2圖，本發明二合一導光板⑴係-體成型設有一反射構件⑺ 於該導光板⑴内之底部或最底部。 該導光板⑴側邊連設，光型統⑶，而導光板⑴上則疊設以光學薄 膜組(4)。該光源⑶可選自冷陰極螢光燈(CCFL)或發光二極體(led)。而光 學薄膜組(4)可包括：_上擴散聊），_上棱鏡片(42)，_下稜鏡片⑼ 才又〜地正父於s亥上稜鏡片（42)，以及一下擴散片（4句者。 6 200823539 由該導光板(1)，光源(3)及光學薄膜組(4)乃構成一背光模組，用以供 LCD等顯示器背光照明之用，除本發明二合—導光板⑴之外，其餘元件 t 均屬習知技術，茲不贅述。 該導光板(1)内之底部或最底部（u)一體成型連設該反射構件(2, Reflection member)，而導光板上部(12)則可連設諸如稜鏡面等集光裝置， 本發明並未加限制。 φ 本發明之特徵乃為該導光板(1)内之底部或最底部(11)連設該反射構件 (2) ’該反射構件(2)可依下列方式連設或設於該導光板内之底部或最底部 (11)之中： 1·射出成型，令該反射構件(2)—體成型於該導光板(1)内之底部或最底 部； 2·以化學鍵結(chemical bonding)或物理鍵結(physical bonding)或機械鎖 定(mechanical locking)之方式，令該反射構件⑺黏結或結合於該導光 板⑴内之底部或最底部； 3·以其他成型(forming)方法，包括射出、押出、熱壓之方式令該反射構 件(2)嵌入、埋入、植入或插入該導光板⑴内之底部或最底部使兩者 (1，2)結合為一體者。 該反射構件(2)實為一預設（或設）有「反射擴散結構」（Reflective diffusing structure)之反射板(Reflection plate)、反射片（Reflection sheet)、反 射膜(Reflection film)或反射層(Reflection layer)等者。 7 200823539 該反射構件(2)，係包括：一基層(20)以及一反射擴散結構(21)設於該基 層(20)之上者。 如第2圖所示之反射擴散結構(21)係含有多數凹穴(22)其縱斷面呈v 型者，係凹投於該基層(2〇)上面。該基層(2〇)可選自—具反光性金屬膜或 金屬箔，如銀、鋁等反光性較佳之金屬，而該反射擴散結構(21)包括該等 凹八(22)圖案者，且直接成型於該金屬膜或金屬箔基層上[或可謂：該基層 _ ⑼)可直接構成该反射擴散結構(21)者];或以印刷的方式將具反光性之反 射擴散結構(21)轉印在該金屬質或高分子質之平面基層(2〇)表面上；或將 反射擴散結構(21)轉印在一表面具金屬化平面基層(20)上，該表面具金屬 化平面基層(20)係於一高分子質表面蒸鍍或濺鍍或電鍍以金屬膜者；或將 高分子樹脂基層(20)以熱壓或其他成型方法直接成型反射擴散結構(21)包 括該等凹穴(22)者，如是使該基層(2〇)上具有反射擴散結構(21)，再以蒸鍍 • 或濺鍍或電鍍之方法，將金屬膜(23)鍍著於該高分子樹脂基層(2〇)之反射 擴散結構(21)上，再與導光板(1)結合如第3圖所示。上述可用之基層樹脂 可選自：丙稀酸系樹脂或聚酯或聚碳酸酯等高分子樹脂者，而高分子樹脂 可為熱塑性或熱固性樹脂，本發明並未加以限制。反射擴散結構⑵)設於 基層(20)上面，其中，該基層(2〇)可選自一具反光之網狀編織物或網狀板 材或網狀薄膜或多孔性板材及薄膜等，再與導光板(丨)結合在一起。 當然，該凹穴(22)之形狀係未加限制者，可呈角錐、圓錐、紡錘型、 半圓球形、拱型、圓弧形或圓柱料可具良好反光多種形狀者，而以縱斷 8 200823539 面呈V型或紡錘型者為宜。 如第4圖所示者，該凹穴(22)已修飾·為呈圓弧形之凹穴(22a)。而由第 2〜4圖所示者，入射光(L)經該反射擴散結構(21)或向上反射，或以多方向 擴散，以提升光學效果者。 如第5圖所示者，該凹穴(22，22a)已修飾成突部(22b),係向上突起之 角錐、圓錐、紡錘形、弧形、拱型、圓柱形等形狀者，該突部(22b)及整個 反射擴散結構(21)亦可如前述之各種基層(20)種類者。 有關該反射擴散結構(21)除前述可用印刷方式轉印在平面基層(2〇)上 之外，亦可以非印刷之方式直接成型該反射擴散結構(21)於該基層(2〇) 上。非印刷方式包括可用雷射，機械加工，腐鍅，微機電系統等，將反射 擴散結構(21)成型於模仁上，再用該模仁大量壓印、翻製這些反射擴散結 構(21)於金屬質或高分子質之基層(2〇)上以構成該反射構件;若為高分 子質基層(20)成型該反射擴散結構(21)後加以表面金屬化處理(如蒸鍍或濺 鍍金屬膜)者尤佳。 而印刷方式之中’亦可以乳白色墨水將該反射擴散結構(21)之圖樣 (pattern)印刷於該反射構件(2)之平面基層(2〇)之上表面以形成凹穴(22)或 犬ap(22b)寺具反射擴散作用之微結構㈣以㈣加血代)者。 當製作完成設有該反射擴散結構(21)之反射構件(2)後，即可與該導光 板⑴一體成型結合、嵌合在一起一如前述者，該導光板⑴之材料可選自： 透明性之樹脂材料，如聚碳酸酯(pc),聚甲基丙烯酸甲酯(PMMA)，聚對 200823539 苯二甲酸乙二醇酯等等。 經此結合’導光板⑴與導光板⑴内設有反射擴散結構(21)之反射構件 (2)牢牢結合在-起’導光板⑴底部或最底部(u)以漸夹部或下伸突部(⑴) V ^(22)α Λ (interlocking) 的方式Ji下牢牢扣結’尤如第2 ’ 3圖所示者，使本發明具有以下諸優點·· 1·導光板(1)與反射構件(2)之間已「二合一」牢結在一起，兩者間已無空 隙(void)或間隙(gap)，故不會產生因多次反射所導致之光損失，因而 出光效率得以提高，可節省光源如LED數量，節省電能，降低製造及 組裝成本。 2·反射構件(2)—體成型於導光板(1)底部或底部之内，毋需額外將兩者加 以組裝，減少製作程序與組裝成本。 3.由於導光板底部之漸尖部或下伸突部(111)與反射構件之凹穴(22)之 開形成「相互聯鎖」（Interlocking)，兩者牢牢扣結，增加整個光學裝 置(optical device)之結構安定性(stmctural stabmty)，不會產生如習知反 射板翹曲(warped)所造成光耦合(wet_out)之劣象，可雙重地增進其機械 強度與光學特性。 同理，該反射構件(2)之突部(22b)如第5圖所示者，當其與導光板〇) 結合時，相對應地導光板(1)之底部(11)將形成凹部(llla)使兩者(22b，1Ua) 之間「相互聯鎖」者。 如前所述者，該反射擴散結構(21)可辅以金屬箔或金屬鍍膜(23)以增其 200823539 反射度Mlectmty)，或以乳白色墨水印刷於該反射構件(2)上以增其反射 效果。 此外，亦可於預先成型過程中，於基層(2〇)樹脂材料中添 加具反射特性之填充物(filler)如乳白色二氧化鈦顆粒或乳白色染料或乳白 色麵加以混練，當壓印或熱壓或射㈣型時，整個反射構件於形成凹穴 (22) 或突部(22b)之反射擴散結構(21)時，已「原位形成」(f〇rmed出該 馨礼白色具有反射效果之反射、擴散結構之表面，此亦為本發明另一可取之 製造方式(如第6圖所示）。 如第7圖所不者，為將具有反射擴散結構(21)之反射構件(幻連設於導 光板(2)之最底部，該反射構件(2)含有高分子質基層(2〇)其上含有金屬鍛膜 (23) 者。 另外，亦可調變該反射構件(2)材料之折射率及該V型凹穴(22)之角 度，使由導光板(1)進入反射構件(2)之「入射光」大部份被反射回去進入 導光板⑴之中。 必須一提的是，本發明中該反射構件(2)之「反射擴散結構」（21)何以 命名若是？乃因本發明已將反射構件(2)之反射功能(reflection)配合凹穴(22) 或突部(22b)之光擴散或散射(diffiisi〇n)功能，兩者相互結合，故兼具光反 射及光擴散之作用，光反射能增益整個光學裝置之亮度(brightness)，而光 擴政作用則可增加光之均勻度(light uniformity)，亦即減少「輝度不勻」 Cimevemiessm luminance)之劣象，故本發明除可增加光亮度外，.復可增加 200823539 光之均勻度，而「兩全其美」。 而印刷於反射構件之墨水與導光板⑴已鍵結在一起，故不會發生以下 之劣象·習知技術中墨水發生局部剝落；或與金屬反射片間摩擦所產生的 剝落，或習知導光板底部反射擴散結構鍍金(金屬膜)後，其金屬鍍膜與金 屬反射片自互摩擦產生刮痕等缺點者，故可確保本發明製成品之品質與商 品價值。 各戎凹穴(22)或突部(22b)除以獨立、個別之方式呈現外，亦可以長條 形之稜i兄或二角形條或半圓柱形條並列凹(或凸)設於該反射構件(2)之上。 又鄰近光源之近端(A)各凹穴(或突部)之間距宜疏些(即間距較大），而 运知(B)則較後、（間距較小），以增出光之均勻度。 本發明之可取實體，可於不違本發明之精神及範脅下加以適當修飾或 改變，本發明實不限制之。 總之’本發明中，該反射構件(2)之幾何造型係未加限制者，例如：該 基層(20)可為平面其上形成該反射擴散結構(21)者；亦可令該基層(2⑺直接 構成該反射擴散結構(21)而具規則或不規則之微結構態樣者。 如第1〜6圖所示者，該反射構件(2)距離導光板(2)之最底面 surface)之間’可保有5〇〜500微米之間距，唯本發明並不限制之。 【圖式簡單說明】 弟1圖係本發明組成一背光模級之示意圖。 12 200823539 第2圖係本發明自第^圖局部放大之剖面圖。 第3圖係本發明導光板與另_可取反射構件結合之部份剖示圖。 第4圖係本發明之另一可取實體剖示圖。 第5圖係本發明之再一可取實體剖示圖。 第6圖為本發明令該反射構件連設於導光板底部之他一可取實例圖。 第7圖為本發明令邊反射構件連設於導光板最底部之一可取實例圖。 【主要元件符號說明】 1---------導光板； 20--------基層； 22.......凹穴； 12·.·.··導光板上部； 4·····.光學薄膜組； 22b····.·突部；- 111…導光板漸尖部； L ······入射光。 2······反射構件； 21······反射擴散結構； 11······導光板内之底部； 3······側光源； 22a..···.圓孤型凹穴； 23......金屬膜；200823539 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a two-in-one light guide plate. 1: Prior Art A conventional backlight module for providing optical illumination to a liquid crystal ageing material is disclosed in the U.S. Patent No. 5,951 (hereinafter referred to as "the former case"). • The backlight module of the previous case is mainly composed of a light source, a light guide plate, a reflection sheet, a diffusion sheet and a cymbal sheet, and a light source of 5 hai can be disposed on a side of the light guide plate, and light is incident on the light guide plate. The 'light plate is made by guiding the light transmission path so that the light is emitted from the light-emitting surface of the light guide plate; the reflection sheet is oppositely disposed on the light guide plate, and the wire is disposed on the bottom surface of the light guide plate and on the bottom surface. The light of the microstructured light is again reflected into the light guide plate to increase the utilization rate of the light; the diffusion sheet and the cymbal sheet are arranged opposite to each other on the light exit surface of the light guide plate, so that the light exit surface of the Φ light guide plate is The light distribution of the light is more uniform to improve the brightness and uniformity of the liquid crystal display panel. However, there are still the following shortcomings in this case: 1. When part of the Yao path is pierced from the bottom of the light guide plate, although a reflection sheet is provided to recover the light and reflected again into the light guide plate, but the light path is in the guide line and In the opposite direction, the sister is shot and re-refracted into the light guide plate, which is still easy to cause light loss and reduce the light extraction efficiency. 2 ‘The reflective remanufacture must be fixed and fixed on the bottom of the light guide plate to increase the f program and manufacturing cost. 3. Regarding the combination of the reflection sheet and the light guide plate, the large-area and thinned light guide plate and the reflection sheet pole 5 200823539 are prone to warp phenomenon, which easily causes the light-wet phenomenon. In view of this, the inventors of the present invention have improved the invention to reveal the novel two-in-one light guide plate of the present invention. SUMMARY OF THE INVENTION An object of the present invention is to provide a two-in-one light guide plate, comprising: a light guide plate; and a reflective member provided with a reflective diffusing structure (Reflection member)-body forming The bottom of the light guide plate or the bottom of the light guide plate diffuses and reflects the incident light from the side light source of the backlight module to the optical film set on the top end of the light guide plate to increase the brightness and uniformity of the light. And thereby simplifying the assembly of optical components, reducing light loss, thereby increasing light extraction efficiency, saving electrical energy, and reducing manufacturing and operating costs. The preferred embodiment of the present invention can be clarified by the following description in conjunction with the accompanying drawings. [Embodiment] Referring to Figures 1 and 2, the two-in-one light guide plate (1) of the present invention is integrally formed with a reflection member (7) at the bottom or the bottom of the light guide plate (1). The light guide plate (1) is connected to the side of the light pattern (3), and the light guide plate (1) is stacked with the optical film group (4). The light source (3) may be selected from a cold cathode fluorescent lamp (CCFL) or a light emitting diode (LED). The optical film group (4) may include: _ upper diffusion chat), _ upper prism sheet (42), _ lower cymbal sheet (9), and then the Orthodox shovel (42), and the lower diffusion sheet (42) 4 200823539 The light guide plate (1), the light source (3) and the optical film group (4) constitute a backlight module for backlighting of a display such as an LCD, in addition to the present invention. Other than the light plate (1), the remaining components t are conventional technologies, and are not described here. The bottom or bottom portion (u) of the light guide plate (1) integrally forms the reflection member (2), and the light guide plate The upper portion (12) may be connected with a light collecting device such as a kneading surface, and the present invention is not limited. φ The present invention is characterized in that the reflecting member is connected to the bottom or the bottommost portion (11) of the light guiding plate (1). (2) 'The reflective member (2) may be connected or disposed in the bottom or bottommost portion (11) of the light guide plate in the following manner: 1. Injection molding, the reflective member (2) is formed in the body The bottom or bottom of the light guide plate (1); 2. chemical bonding or physical bonding or mechanical locking (mechanical locki In the manner of ng), the reflective member (7) is bonded or bonded to the bottom or the bottom of the light guide plate (1); 3. The reflective member is formed by other forming methods including injection, extrusion, and hot pressing (2) Embedding, embedding, implanting or inserting into the bottom or bottom of the light guide plate (1) to combine the two (1, 2). The reflective member (2) is a preset (or set) a reflection plate, a reflection sheet, a reflection film, or a reflection layer of a reflective diffusing structure. 7 200823539 The reflection member (2) The method comprises: a base layer (20) and a reflective diffusion structure (21) disposed on the base layer (20). The reflective diffusion structure (21) as shown in Fig. 2 contains a plurality of recesses (22) and has a longitudinal break. The surface is v-shaped and is concavely placed on the base layer (2〇). The base layer (2〇) may be selected from a reflective metal film or a metal foil, such as a metal having better reflectivity such as silver or aluminum. The reflective diffusion structure (21) includes the concave eight (22) pattern and is directly formed on the metal film or gold On the foil base layer [or the base layer _ (9)) may directly constitute the reflective diffusion structure (21); or transfer the reflective reflective diffusion structure (21) to the metal or polymer by printing. On the surface of the planar base layer (2〇); or transfer the reflective diffusion structure (21) onto a surface of a metallized planar base layer (20) having a metallized planar base layer (20) attached to a high molecular mass Surface evaporation or sputtering or electroplating with a metal film; or direct molding of the polymer resin substrate (20) by hot pressing or other molding methods, including the recesses (22), such as The base layer (2〇) has a reflective diffusion structure (21), and the metal film (23) is plated on the polymer resin base layer (2〇) by a vapor deposition or sputtering or electroplating method ( 21) Upper, combined with the light guide plate (1) as shown in Fig. 3. The above-mentioned usable base resin may be selected from the group consisting of acrylic resin or polymer resin such as polyester or polycarbonate, and the polymer resin may be a thermoplastic or thermosetting resin, which is not limited in the present invention. The reflective diffusion structure (2) is disposed on the base layer (20), wherein the base layer (2〇) may be selected from a reflective mesh woven or mesh plate or mesh film or a porous plate and film, etc. The light guide plates (丨) are combined. Of course, the shape of the recess (22) is unrestricted, and may be a pyramid, a cone, a spindle, a semi-spherical, an arch, a circular arc or a cylindrical material, which can have various shapes of good reflection, and the longitudinal shape is 8 200823539 It is advisable to have a V-shaped or a spindle type. As shown in Fig. 4, the recess (22) has been modified to be a circular arc-shaped recess (22a). As shown in Figures 2 to 4, the incident light (L) is reflected upward by the reflective diffusion structure (21) or diffused in multiple directions to enhance the optical effect. As shown in Fig. 5, the recess (22, 22a) has been modified into a projection (22b) which is a shape of a pyramid, a cone, a spindle, an arc, an arch, a cylinder, or the like which protrudes upward. (22b) and the entire reflective diffusion structure (21) may also be of various types of base layers (20) as described above. The reflective diffusion structure (21) may be directly formed on the base layer (2) by a non-printing method in addition to the above-described transferable printing method on the planar substrate (2). The non-printing method includes laser, machining, rot, MEMS, etc., and the reflective diffusion structure (21) is formed on the mold core, and the mold is used to emboss and reproduce the reflection diffusion structure (21). Forming the reflective member on a metal or high-molecular base layer (2〇); forming a reflective diffusion structure (21) for the polymer base layer (20) and then subjecting the surface to metallization (such as evaporation or sputtering) Metal film) is especially good. In the printing mode, a pattern of the reflective diffusion structure (21) may be printed on the upper surface of the planar substrate (2) of the reflective member (2) to form a recess (22) or a dog. The ap (22b) temple has a microstructure of reflection and diffusion (4) to (4) plus blood generation). After the reflective member (2) provided with the reflective diffusion structure (21) is completed, it can be integrally formed and combined with the light guide plate (1). As the foregoing, the material of the light guide plate (1) can be selected from: A transparent resin material such as polycarbonate (pc), polymethyl methacrylate (PMMA), polypair 200823539 ethylene glycol phthalate, and the like. The light-guiding plate (1) and the reflective member (2) provided with the reflective diffusion structure (21) in the light guide plate (1) are firmly coupled to the bottom or bottom portion (u) of the light guide plate (1) to be gradually clamped or extended. The protrusion ((1)) V ^(22)α Λ (interlocking) is firmly fastened under the way Ji. As shown in Fig. 2, the invention has the following advantages: 1. Light guide plate (1) ) The "two-in-one" is firmly bonded to the reflective member (2), and there is no void or gap between the two, so that no light loss due to multiple reflections occurs. The light extraction efficiency is improved, which saves the number of light sources such as LEDs, saves energy, and reduces manufacturing and assembly costs. 2. The reflecting member (2) is formed in the bottom or bottom of the light guide plate (1), and it is not necessary to additionally assemble the two to reduce the manufacturing process and assembly cost. 3. Since the tapered portion or the downward protruding portion (111) of the bottom of the light guide plate and the recess (22) of the reflecting member form an "interlocking", the two are firmly fastened to increase the entire optical device. The structural stability of the optical device does not produce the inferior image of the light coupling (wet_out) caused by the warping of the conventional reflector, and can double the mechanical strength and optical properties. Similarly, the protrusion (22b) of the reflective member (2), as shown in FIG. 5, when it is combined with the light guide plate 〇), correspondingly the bottom portion (11) of the light guide plate (1) will form a concave portion ( Llla) Make the two (22b, 1Ua) "interlocked" between each other. As described above, the reflective diffusion structure (21) may be supplemented with a metal foil or a metal plating film (23) to increase its reflectance of 200823539 Mlectmty), or may be printed on the reflective member (2) with milky white ink to increase its reflection. effect. In addition, in the pre-forming process, a filler having a reflective property such as milky white titanium dioxide particles or a milky white dye or a milky white surface may be added to the base layer (2 inch) resin material for kneading or hot pressing or shooting. In the case of (4) type, the entire reflecting member is formed "in situ" when forming the reflection diffusion structure (21) of the recess (22) or the projection (22b) (f〇rmed the reflection of the white color with reflection effect, The surface of the diffusing structure, which is also another preferred manufacturing method of the present invention (as shown in Fig. 6). As shown in Fig. 7, a reflecting member having a reflective diffusing structure (21) is provided. At the bottom of the light guide plate (2), the reflective member (2) comprises a polymer base layer (2) containing a metal forged film (23) thereon. Alternatively, the reflection of the material of the reflection member (2) may be modulated. The angle of the V-shaped pocket (22) causes most of the "incident light" entering the reflective member (2) from the light guide plate (1) to be reflected back into the light guide plate (1). It must be mentioned that In the present invention, the "reflective diffusion structure" (21) of the reflective member (2) is named if it is The reflection function of the reflection member (2) has been combined with the light diffusion or scattering (diffiisi〇n) function of the cavity (22) or the protrusion (22b), and the two are combined with each other, so that both light reflection and light are combined. The effect of diffusion, the light reflection energy can increase the brightness of the entire optical device, and the light expansion effect can increase the light uniformity, that is, reduce the inferiority of "Cimevemiessm luminance". In addition to increasing the brightness of the light, the invention can increase the uniformity of light of 200823539, and "the best of both worlds." The ink printed on the reflective member and the light guide plate (1) are bonded together, so that the following disadvantages do not occur. In the prior art, the ink is partially peeled off; or the peeling caused by the friction between the metal reflective sheet or the gold-plated (metal film) of the reflective diffusing structure at the bottom of the light guide plate, the metal coating film and the metal reflective sheet are rubbed by each other to cause scratches. Such as the disadvantages, it can ensure the quality and commercial value of the finished product of the invention. Each of the pockets (22) or the protrusions (22b) can be displayed in an independent or individual manner, or Double strip The semi-cylindrical strips are juxtaposed (or convex) on the reflective member (2). The distance between the recesses (or protrusions) adjacent to the proximal end (A) of the light source is further (i.e., the spacing is larger). And the knowledge (B) is later, (small spacing), to increase the uniformity of light. The preferred embodiment of the present invention can be appropriately modified or changed without departing from the spirit and scope of the present invention. In general, in the present invention, the geometric shape of the reflective member (2) is not limited, for example, the base layer (20) may be a plane on which the reflective diffusion structure (21) is formed; The base layer (2(7) directly constitutes the reflective diffusion structure (21) and has a regular or irregular microstructure. As shown in the first to sixth embodiments, the distance between the reflecting member (2) and the bottom surface of the light guide plate (2) is maintained at a distance of 5 Å to 500 μm, which is not limited by the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The Brother 1 diagram is a schematic diagram of a backlight module level of the present invention. 12 200823539 Figure 2 is a partially enlarged cross-sectional view of the present invention from the second embodiment. Figure 3 is a partial cross-sectional view showing the light guide plate of the present invention in combination with another reflective member. Figure 4 is a cross-sectional view of another preferred embodiment of the present invention. Figure 5 is a cross-sectional view of still another preferred embodiment of the present invention. Fig. 6 is a view showing an example of the invention in which the reflecting member is connected to the bottom of the light guide plate. Fig. 7 is a view showing an example in which the side reflection member is connected to the bottom of the light guide plate in the present invention. [Main component symbol description] 1--------- light guide plate; 20-------- base layer; 22....... recess; 12·.····light guide plate Upper part; 4·····. Optical film group; 22b······· protrusion; - 111... light guide plate taper; L ······ incident light. 2······Reflecting member; 21······Reflective diffusion structure; 11······Bottom in the light guide plate; 3······side light source; 22a..··· Round solitary pocket; 23...metal film;
Ilia···…導光板凹部； 13Ilia···...light guide plate recess; 13