1358003 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種光源裝置，供一液晶顯示器之背光模 組使用。 【先前技術】 液晶顯示器（Liquid Crystal Display, LCD)廣泛應 用在電腦、電視、以及行動電話等各種電子產品上。背光 模組（backlight module)是液晶顯示器重要組成元件之 一。背光模組所使用之光源裝置，則直接影響背光模組之 效能與組裝成本。其中，發光二極體（Light Emitting Diodes，Lro)由於體積小、粍能少，因此成為液晶顯示 器使用的光源之一。此外，相較於直下式背光模組，侧光 式背光模組因為可具有較薄之厚度而受到重視。 常見之側光式背光模組結構包含光源裝置、導光板、反 射板及膜片等。其中，光線由光源裝置發出後， 光板傳播至背光觀。如® la所示之f知技術，光源裝 置100包含光罩300及光源500。光罩3〇〇具有與導光板 綱之入光侧對應設置之開口端咖。如圖化所示習知技 術之光線進行路線示意圖，在光源咖所發出之光線5〇1 中’僅行進方向朝向開口端350之部分之光線5〇1可直接 5 通過開口端350。其餘非朝向開口端350行進之光線501 則無法直接通過開口端350,因此無法被有效利用。此外， 由於發光二極體係為點狀光源，故可能因為混光不完全而 形成如圖1c所示之暗區400，使導光板800之入光側之光 均勻度降低。 ，如圖ld所示之習知技術，於導光板800之入光側製作 微結構801可增加發光二極體光源5⑼所發出光線之發射 角，藉以提昇導光板8〇〇之入光側之光均勻度。然而，相 對的會增加加工成本及時間。此外，習知技術中另有增加 發光二極體統_與導光板_之人細之距離之做 亦可提昇導光板咖之入光侧之光均勻度。此做法易 受尺寸規格關，且有可驗神下降。社所述光 源裝置之設計有改進的空間。 【發明内容】 本發明之主要目的在於提供一種光源t置，具有較均勻 之發光效果。 可增加亮 度 本發明之主要目的在於提供一種光源裝置， 本發明之主要目的在於提供—種鱗 使用效率。 了&先線 本發明之光源裝置較鶴設置於導細之—側。 置包含光罩及光源。鮮具有開1 侧賊第二侧 6 1358003 壁。第-側壁與第二側壁係位於開口端之相對二側， -側壁具有光反射部設置於其内面。設置於光罩内 並位於第-趣之内面，且與光反射部相互對應。 光源較健為發光二極體，係設置於光罩峨 側壁之内面，且與献射部相賴應。光罩可進—步包含 設置於光源下方之光反則。第係相對於開口端截1358003 IX. Description of the Invention: [Technical Field] The present invention relates to a light source device for use in a backlight module of a liquid crystal display. [Prior Art] Liquid crystal displays (LCDs) are widely used in various electronic products such as computers, televisions, and mobile phones. A backlight module is one of the important components of a liquid crystal display. The light source device used in the backlight module directly affects the performance and assembly cost of the backlight module. Among them, Light Emitting Diodes (Lro) is one of the light sources used in liquid crystal displays because of its small size and low energy. In addition, the edge-lit backlight module is valued because of its thinner thickness than the direct-lit backlight module. A common side-lit backlight module structure includes a light source device, a light guide plate, a reflector plate, and a diaphragm. Wherein, after the light is emitted by the light source device, the light plate propagates to the backlight. The light source device 100 includes a reticle 300 and a light source 500, as shown by the technique of ® la. The photomask 3 has an open end corresponding to the light incident side of the light guide plate. A schematic diagram of the light of the conventional technique shown in the figure shows that in the light ray 5 〇1 emitted by the light source coffee, the light ray 5 仅1 which is only traveling toward the open end 350 can directly pass through the open end 350. The remaining light 501 that does not travel toward the open end 350 cannot pass directly through the open end 350 and thus cannot be effectively utilized. Further, since the light-emitting diode system is a point light source, the dark region 400 as shown in Fig. 1c may be formed due to incomplete light mixing, so that the light uniformity of the light incident side of the light guide plate 800 is lowered. As shown in the prior art, the micro structure 801 is formed on the light incident side of the light guide plate 800 to increase the emission angle of the light emitted by the light emitting diode 5 (9), thereby improving the light incident side of the light guide plate 8 Light uniformity. However, the relative increase in processing costs and time. In addition, in the prior art, the addition of the distance between the light-emitting diode system and the light guide plate _ can also improve the light uniformity of the light-incident side of the light guide plate. This practice is subject to dimensional specifications and can be degraded. The design of the light source device described in the company has room for improvement. SUMMARY OF THE INVENTION The main object of the present invention is to provide a light source t with a relatively uniform illumination effect. Increasing Brightness A primary object of the present invention is to provide a light source device, and the main object of the present invention is to provide a scale utilization efficiency. & First line The light source device of the present invention is disposed on the side of the guide. The hood and the light source are included. Fresh has 1 side thief on the second side 6 1358003 wall. The first side wall and the second side wall are located on opposite sides of the open end, and the side wall has a light reflecting portion disposed on the inner surface thereof. It is disposed in the reticle and is located on the inner surface of the first fun, and corresponds to the light reflecting portion. The light source is more rigid as a light-emitting diode, and is disposed on the inner surface of the side wall of the mask, and is compatible with the projection portion. The reticle can further include a light that is disposed below the light source. The first line is cut relative to the open end
面傾斜設置’且第-側壁上具有光反射片。絲裝置更包 含電路板，係設置於献射片下方，且歧射片係設置於 光源下方。 光反射片係與開口端截面具有夾角，且失角係小於9〇 。在較佳實施射，夾祕介於6〇。至8Q。之間。光反射 部之高度係介於(Umm至〇. 5mm之間^光反射部與光源之 距離係介於〇. 5mm至0. 8mm之間。The face is inclined to set ' and the light-reflecting sheet is provided on the first side wall. The wire device further includes a circuit board disposed below the concentrating film, and the viscous film is disposed under the light source. The light reflecting sheet has an angle with the open end section, and the angle of loss is less than 9 〇. In the preferred implementation, the folder is between 6 inches. To 8Q. between. The distance between the light-reflecting portion and the light source is between 5. 5mm and 0. 8mm.
光反射部包含相對於開口端截面平行延伸之長條型部 件。光反射部包含第二侧壁向光罩内部突出之凸面。凸面 =突出形狀包含鱗。凸面之突出形狀包含圓錐。凸面之 大·出形狀包含圓頂。凸面係沿開口端延伸分佈。 【實施方式】 本發明係提供-種光職置。啸佳實施例而言，此光 源裝置係供-側光式背光模組制。背光模組較常係供作 為液晶顯示器（Liquid Crystal Display)之光源。 如圖2a所示之實施例，本發明之光源裝置1〇〇較佳係 7 設置於導光板別0之一側。光源裝置100包含光罩3〇〇及 光源500。光罩300係為沿光源裝置100側邊設置之半封 閉式物件，包含開口端350、第一側壁310與第二側壁 320。在較佳實施例中，開口端35〇係與導光板8〇〇之入 光側對應設置。第一側壁31〇與第二侧壁32〇係位於開口 端350之相對二側。在如圖2a所示之實施例中，第一側 壁310係指光罩300下方往側邊彎折延伸之側壁，第二側 壁320係指光罩3〇〇上方往側邊彎折延伸之側壁，且第一 側壁310與第二側壁320在光罩3〇〇之側邊重疊。此外， 在其他實施例中第一側壁310與第二側壁320亦可相互連 接。 其中，第二侧壁320具有光反射部321設置於其内面。 在如圖2a所示之較佳實施例中，光反射部321係為相對 於開口端350截面平行延伸之長條型部件。此外，於本實 施例中，光反射部321較佳係由第二側壁320彎折而成， 且具有一弧曲之内凸截面。然而，在不同實施例中，光反 射部321之設置亦可如圖2b所示實施例使用與第二侧壁 320接合之獨立部件，或如圖2C所示實施例採一體成型方 式製作。 光源500係設置於光罩3〇〇内’並位於第一側壁31〇之 内面。其中，光源500係與光反射部321相互對應。在較 佳實施例中’光源5〇〇係為發光二極體。然而在不同實施 例中’光源500可以為其他發光裝置。 1358003 與如圖lb所示之習知技術不同的，如圖3所示之 進行路線示意圖。在光源500所發出之光線5〇1中，除線 行進方向朝向開口端350之光線501外，行進方向朝:了 二側壁320 <光反射部321 <光線5〇1亦可藉由反=第 通過開口端350。具體而言，當光源5〇〇所發出行進方^ 朝向第二側壁320之光反射部321之光線5〇1行進至光^ 射部321時，會經由光反射部321反射改變行進方向， 行進方向朝向開口端350以通過開口端350。 因此，藉由光反射部321之設置，可提高光源5〇〇所發 出光線501之利用率。此外，更由於光反射部321對於光 線501之反射作用，增加了光線5〇1於光罩3〇〇内的反射 與散射效果。換言之，光源_所發出之部分之光線咖 可利用光反射部321之反射於光罩内達到混光的作 用，進一步提高了通過開口端350時的光均勻性。 ，如圖4所*之實關，光罩_可以分別為具反射光線 平面之金屬物件’或具有鑛金屬平面之非金屬物件，或其 他具光反射性之材f，例如細。此外，料_可進一 步包含光反射片m。光反射片311係設置於光源_下 方。光反射片311可以分別為具反射光線平面之金屬物 件’或具錢金屬平©之非金屬物件，或其他具光反射性 之材質，例如鏡面。藉由以上設置’光源5〇〇所發出之光 線501行進至光罩關或光反射片311日夺，可分別經 由光罩300内側及光反射片311反射改變行進方向。換言 9 之，對於光源_所發出之光線501巾言，可反射之區域 增大°因此’前述混光作用的效果增加，可再進-步提高 光均勻性。 在如圖5所示之較佳實施例中，第一側壁31〇係相對於 開口端350截面傾斜設置，且第一侧壁31〇上具有光反射 片311。如圖5所示，光反射片311係與開口端35〇截面 間具有一失角0。由於光反射片311係相對於開口端35〇 截面傾斜，連帶使得光源500相對於光反射部321及光罩 300之角度改變。藉此，可以提高光源5〇〇所發出之光線 501經光反射部321及光罩3〇〇反射後朝向開口端35〇行 進並通過開口端35G的量，輯加亮度。在此較佳實施例 中’本發明之光源裝置1〇〇更包含電路板7〇(μ電路板7〇〇 係設置於光反射片311下方，且光反射片311係設置於光 源500下方。 在如圖5所示較佳實施例中，夾角6»係介於60。至80。 之間，光反射部321之高度hl係介於〇. 3mm至〇. 5麵之間， 光反射部321與光源5〇〇之距離dl係介於〇. 5醜至〇· 8mm 之間。然而在不同實施例中，夾角0之角度、光反射部321 之高度h、及光反射部321與光源5〇〇之距離dl，皆可分 別有不同設置以達到較佳之混光效果。 光反射部321之形狀可視需求而有不同之設置。例如光 反射部321可以包含為第二側壁32〇向光罩_内部突出 之凸面。此外，作為光反射部321之凸面較佳係相對於開 1358003 口端350截面平行分佈。在如圖6所示之實施例中，第二 側壁320向光罩300内部突出之凸面之突出形狀係為四^ 錐。亦即在此實施例中，光反射部321係為四角錐。在不 同實施例中’作為光反射部321之角錐之底邊數及高度可 分別有不同設置，_整反射光之角度峨得最佳之^光 效果。 此 在如圖7所示之實施例中，第二側壁32〇向光罩咖内 部突出之&面之突出形狀係為_。亦即在此實施例中， 光反射部321係為圓錐。其中，改變作為光反射部321之 圓錐之高度，可_整反射光之角度喊得最佳之混光效 果。在如圖8所示之實施例中，第二側壁320肖光罩300 内部突出之凸面之突出形狀係為圓頂。亦即在此實施例 中’光反射部321係為圓頂。在不同實施例中，作為光反 射部321之圓頂之曲率及高度可分別有不同設置，以調整 反射光之角度而獲得最佳之混光效果。 本發明已由上述相關實施例加以描述，然而上述實施例 僅為實施本發明之範例。必需指出的是，已揭露之實施例 並未限制本發明之範目。相反地，包含於申請專利範圍之 精神及|&圍之修改及均等設置均包含於本發明之範圍内。 【圖式簡單說明】 圖la為習知技術立體示意圖； 圖lb為習知技術光線進行示意圖； 圖lc為習知技術上視示意圖； 圖id為另一習知技術上視示意圖； 圖2a為本發明之較佳實施例立體示意圖；The light reflecting portion includes an elongated member that extends in parallel with respect to the open end section. The light reflecting portion includes a convex surface on which the second side wall protrudes toward the inside of the reticle. Convex = The protruding shape contains scales. The convex shape of the convex surface contains a cone. The large and outgoing shape of the convex surface contains a dome. The convex surface extends along the open end. [Embodiment] The present invention provides a kind of optical position. In the case of the Xiaojia embodiment, the light source device is made of a side-light type backlight module. The backlight module is often used as a light source for a liquid crystal display. In the embodiment shown in Fig. 2a, the light source device 1 of the present invention is preferably disposed on one side of the light guide plate. The light source device 100 includes a photomask 3 and a light source 500. The mask 300 is a semi-closed article disposed along the side of the light source device 100, and includes an open end 350, a first side wall 310 and a second side wall 320. In the preferred embodiment, the open end 35 is disposed corresponding to the light incident side of the light guide plate 8A. The first side wall 31 and the second side wall 32 are located on opposite sides of the open end 350. In the embodiment shown in FIG. 2a, the first side wall 310 refers to the side wall of the reticle 300 which is bent and extended to the side, and the second side wall 320 refers to the side wall of the reticle 3 which is bent and extended to the side. And the first side wall 310 and the second side wall 320 overlap on the side of the photomask 3〇〇. In addition, in other embodiments, the first sidewall 310 and the second sidewall 320 may also be connected to each other. The second sidewall 320 has a light reflecting portion 321 disposed on an inner surface thereof. In the preferred embodiment shown in Fig. 2a, the light reflecting portion 321 is an elongated member extending in parallel with respect to the open end 350. In addition, in the embodiment, the light reflecting portion 321 is preferably formed by bending the second side wall 320 and having an inner curved portion. However, in various embodiments, the arrangement of the light reflecting portion 321 can also be made using a separate component joined to the second sidewall 320, as shown in the embodiment of Fig. 2b, or integrally formed as in the embodiment of Fig. 2C. The light source 500 is disposed inside the photomask 3' and located on the inner surface of the first side wall 31〇. Among them, the light source 500 and the light reflecting portion 321 correspond to each other. In a preferred embodiment, the light source 5 is a light emitting diode. However, in various embodiments, light source 500 can be other light emitting devices. 1358003 Different from the prior art shown in FIG. 1b, a schematic diagram of the route is shown in FIG. In the light ray 5 〇1 emitted by the light source 500, except for the light 501 that faces the open end 350, the traveling direction is toward the two side walls 320 < the light reflecting portion 321 < the light ray 5 〇 1 can also be reversed = first through the open end 350. Specifically, when the light ray 5 〇1 of the light-emitting portion 321 of the light source 5 toward the light-reflecting portion 321 of the second side wall 320 travels to the light-emitting portion 321 , the light-reflecting portion 321 reflects the traveling direction and travels. The direction is toward the open end 350 to pass through the open end 350. Therefore, by the arrangement of the light reflecting portion 321, the utilization of the light ray 501 emitted from the light source 5 can be improved. Further, the reflection and scattering effect of the light reflecting portion 321 on the light ray 501 increases the reflection and scattering effect of the light ray 5 in the reticle 3 更. In other words, the portion of the light source emitted by the light source _ can be reflected by the light reflecting portion 321 in the reticle to achieve the light mixing effect, which further improves the light uniformity when passing through the open end 350. As shown in Fig. 4, the reticle _ may be a metal object having a plane of reflected light or a non-metallic object having a plane of a metallic metal, or a material f having a light reflectivity, such as thin. Further, the material_ can further include the light reflection sheet m. The light reflection sheet 311 is disposed under the light source_. The light reflecting sheet 311 may be a metal object having a light reflecting plane or a non-metal object having a light metal flat, or other light reflecting material such as a mirror surface. The optical line 501 emitted by the light source 5 is moved to the reticle or the light-reflecting sheet 311, and the traveling direction can be changed by the inside of the reticle 300 and the light-reflecting sheet 311, respectively. In other words, for the light ray 501 emitted by the light source _, the reflectable area is increased. Therefore, the effect of the aforementioned light mixing effect is increased, and the light uniformity can be further improved. In the preferred embodiment shown in Fig. 5, the first side wall 31 is obliquely disposed with respect to the open end 350, and the first side wall 31 has a light reflecting sheet 311 thereon. As shown in Fig. 5, the light reflecting sheet 311 has a lost angle 0 between the open end 35 and the cross section. Since the light reflection sheet 311 is inclined with respect to the opening end 35〇, the angle of the light source 500 with respect to the light reflection portion 321 and the reticle 300 is changed. Thereby, it is possible to increase the brightness by illuminating the light ray 501 emitted from the light source 5 经 through the light reflecting portion 321 and the reticle 3 后 and then moving toward the open end 35 and passing through the open end 35G. In the preferred embodiment, the light source device 1 of the present invention further includes a circuit board 7 (the circuit board 7 is disposed under the light reflection sheet 311, and the light reflection sheet 311 is disposed under the light source 500. In the preferred embodiment shown in FIG. 5, the angle 6» is between 60 and 80. The height hl of the light reflecting portion 321 is between 〇. 3 mm to 〇. 5 faces, the light reflecting portion The distance dl between the 321 and the light source 5 系 is between 丑. 5 ug to 〇 8 mm. However, in different embodiments, the angle of the angle 0, the height h of the light reflecting portion 321 , and the light reflecting portion 321 and the light source The distance dl of the 〇〇 can be differently set to achieve a better light mixing effect. The shape of the light reflecting portion 321 can be differently set according to requirements. For example, the light reflecting portion 321 can include the second side wall 32 Further, the convex surface as the light reflecting portion 321 is preferably distributed in parallel with respect to the opening portion of the opening 135083. In the embodiment shown in FIG. 6, the second side wall 320 is directed to the inside of the mask 300. The protruding shape of the protruding convex surface is a four-cone. That is, in this embodiment, the light reflection 321 is a quadrangular pyramid. In different embodiments, the number of bases and heights of the pyramids as the light reflecting portion 321 may be differently set, and the angle of the _reflected light is optimally obtained. In the embodiment shown in FIG. 7, the protruding shape of the second side wall 32 protruding toward the inside of the hood is _. That is, in this embodiment, the light reflecting portion 321 is a cone. The height of the cone of the light reflecting portion 321 can be optimally combined with the angle of the reflected light. In the embodiment shown in FIG. 8, the convex portion of the second sidewall 320 is protruded from the inside of the mask 300. The shape is a dome. That is, in this embodiment, the light reflecting portion 321 is a dome. In different embodiments, the curvature and height of the dome as the light reflecting portion 321 can be respectively set to adjust the reflection. The best light mixing effect is obtained from the angle of light. The present invention has been described by the above related embodiments, but the above embodiments are merely examples for implementing the present invention. It is to be noted that the disclosed embodiments do not limit the present invention. In addition, including The spirit of the invention and the modifications and equalizations of the scope of the invention are included in the scope of the invention. [FIG. 1a is a schematic view of a prior art; FIG. Figure lc is a schematic view of a prior art; Figure 2a is a schematic view of another prior art; Figure 2a is a perspective view of a preferred embodiment of the present invention;
圖2b為本發明之光源裝置之光反射部採接合方式設置之 實施例立體示意圖； 圖2c為本發明之光源裝置之光反射部採一體成型方式設 置之實施例立體示意圖； 圖3為本發明之實施例光線進行示意圖； 圖4為本發明之光源裝置之光罩具光反射性之實施例光線 進行示意圖；2b is a perspective view showing an embodiment of the light-reflecting portion of the light source device according to the present invention; FIG. 2 is a perspective view showing an embodiment of the light-reflecting portion of the light source device of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 4 is a schematic view showing light rays of an embodiment of a light shield of a light source device of the present invention;
圖5為本發明之光源裝置包含傾斜之光反射片之實施例示 意圖； 圖6為本發明之光源裝置之光反射部為角錐之實施例立體 示意圖； 圖7為本發明之光源裝置之光反射部為圓錐之實施例立體 示意圖； 圖8為本發明之光源裝置之光反射部為圓頂之實施例立體 示意圖； 12 1358003 【主要元件符號說明】 100背光模組 300光罩 310第一側壁 311光反射片 320第二側壁 321光反射部 • 350開口端 500光源 501光線 700電路板 800導光板 ' 0夹角 h!光反射部高度 cb光反射部與光源距離5 is a schematic view showing an embodiment of a light source device comprising a tilted light reflecting sheet according to the present invention; FIG. 6 is a perspective view showing an embodiment of a light reflecting portion of the light source device according to the present invention; FIG. FIG. 8 is a perspective view showing an embodiment of a light source of a light source device according to the present invention; FIG. 8 is a perspective view showing an embodiment of a light reflecting portion of a light source device according to the present invention; 12 1358003 [Description of main components] 100 backlight module 300, a first side wall 311 of the mask 310 Light reflection sheet 320 second side wall 321 light reflection portion • 350 open end 500 light source 501 light 700 circuit board 800 light guide plate ' 0 angle h! light reflection portion height cb light reflection portion and light source distance