TWI479238B - Backlight module - Google Patents

Backlight module Download PDF

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Publication number
TWI479238B
TWI479238B TW101119840A TW101119840A TWI479238B TW I479238 B TWI479238 B TW I479238B TW 101119840 A TW101119840 A TW 101119840A TW 101119840 A TW101119840 A TW 101119840A TW I479238 B TWI479238 B TW I479238B
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Taiwan
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light
backlight module
emitting elements
guiding rod
distance
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TW101119840A
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Chinese (zh)
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TW201350991A (en
Inventor
Ming Lung Chen
Kun Hung Hsieh
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Au Optronics Corp
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Priority to TW101119840A priority Critical patent/TWI479238B/en
Priority to CN201210323756.0A priority patent/CN102927498B/en
Publication of TW201350991A publication Critical patent/TW201350991A/en
Application granted granted Critical
Publication of TWI479238B publication Critical patent/TWI479238B/en

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Description

背光模組Backlight module

本發明係有關一種背光模組,特別是一種顯示面板之背光模組。The invention relates to a backlight module, in particular to a backlight module of a display panel.

一般的液晶顯示器主要是利用液晶面板(LCD panel)進行顯示,由於液晶面板屬於非自發光性的顯示面板,因此必須藉助背光模組供應亮度充足與分佈均勻的光源,才能使液晶面板正常顯示影像。一般直下式(direct type)背光模組是由基板上複數LED直接對著擴散板位置投射光源,並且,基板與擴散板之間形成可視發光區的混光空間,基板上各個LED設置的位置,必須是各LED所投射的範圍來符合均勻地分佈在擴散板的面積上,因此一般會將混光空間寬度加大,變寬,以使LED投射距離較長及最大範圍的光源作用,得到減少LED數量的作用下並可投射在擴散板上最廣範圍的效果,然而,也因此造成液晶顯示器的整體厚度變寬。A general liquid crystal display mainly uses a liquid crystal panel (LCD panel) for display. Since the liquid crystal panel is a non-self-luminous display panel, it is necessary to supply a light source with sufficient brightness and uniform distribution by means of the backlight module, so that the liquid crystal panel can display images normally. . Generally, a direct type backlight module projects a light source directly from a plurality of LEDs on a substrate, and a light mixing space is formed between the substrate and the diffusion plate, and a position of each LED on the substrate is set. It must be the range projected by each LED to be evenly distributed on the area of the diffuser. Therefore, the width of the mixed light space is generally increased and widened, so that the LED has a longer projection distance and the maximum range of light source is reduced. The effect of the number of LEDs can be projected on the widest range of effects on the diffuser, however, the overall thickness of the liquid crystal display is thus widened.

因此,為使液晶顯示器朝向更加薄型化,上述混光空間的寬度則必須相對的降低、縮短,一般以設置更多的LED數量,利用複數LED密集分佈並投射在擴散板最多的面積及範圍上來解決,但相對的造成液晶顯示器的成本提高,是以,如何解決此些問題為所屬技術領域的相關業者所刻不容緩的問題。Therefore, in order to make the liquid crystal display direction thinner, the width of the above-mentioned light mixing space must be relatively reduced and shortened. Generally, more LEDs are disposed, and the plurality of LEDs are densely distributed and projected on the area and range of the diffusion plate. The solution solves the problem, but the cost of the liquid crystal display is relatively increased. Therefore, how to solve such problems is an urgent problem for the related art in the technical field.

有鑑於此,本發明提出一種背光模組,包含:複數發光元件、框架及複數導光棒;其中,框架包含本體部與反射部,本體部與反射部之間形成容置空間以設置複數發光元件,反射部連接於本體部,並朝向複數發光元件傾斜延伸;複數導光棒一端位於複數發光元件之側邊,其中,反射部面 向複數導光棒。In view of the above, the present invention provides a backlight module including: a plurality of light-emitting elements, a frame, and a plurality of light-guiding rods; wherein the frame includes a body portion and a reflection portion, and an accommodation space is formed between the body portion and the reflection portion to set the plurality of light-emitting portions The reflecting portion is connected to the body portion and extends obliquely toward the plurality of light emitting elements; one end of the plurality of light guiding rods is located at a side of the plurality of light emitting elements, wherein the reflecting portion faces To the complex light guide.

本發明的實施例中,背光模組藉由框架的傾斜設計遮蔽暗帶部分,並以發光元件與導光棒的設置,替代冷陰極螢光燈管的發光效果。此外,本發明藉由導光棒之設置可降低混光空間的高度,有效減少背光模組之厚度而達到薄型化之目的,並且,本發明可有效減少數量的發光元件達到降低成本之目的。In the embodiment of the present invention, the backlight module shields the dark band portion by the tilting design of the frame, and replaces the light emitting effect of the cold cathode fluorescent lamp tube with the arrangement of the light emitting element and the light guiding rod. In addition, the present invention can reduce the height of the light mixing space by the arrangement of the light guiding rod, effectively reduce the thickness of the backlight module, and achieve the purpose of thinning, and the invention can effectively reduce the number of light emitting elements to achieve the purpose of reducing the cost.

以下在實施方式中詳細敘述本發明之詳細特徵以及優點,其內容足以使任何熟習相關技藝者瞭解本發明之技術內容並據以實施,且根據本說明書所揭露之內容、申請專利範圍及圖式,任何熟習相關技藝者可輕易地理解本發明相關之目的及優點。The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> </ RTI> <RTIgt; The objects and advantages associated with the present invention can be readily understood by those skilled in the art.

請參閱第1圖、第2圖及第3圖,係本發明的第一實施例。第1圖為局部剖面示意圖,第2圖為局部外觀示意圖,第3圖為局部俯視示意圖。Please refer to FIG. 1, FIG. 2 and FIG. 3, which are the first embodiment of the present invention. 1 is a partial cross-sectional view, FIG. 2 is a partial appearance view, and FIG. 3 is a partial top view.

如第1圖及第2圖所示,於本發明第一實施例中之背光模組1包含:複數光源模組3、框架5及複數導光棒7。As shown in FIG. 1 and FIG. 2, the backlight module 1 in the first embodiment of the present invention includes a plurality of light source modules 3, a frame 5, and a plurality of light guide bars 7.

光源模組3主要可由基板31、支撐座32及發光元件33所組成,其中,發光元件33焊接於基板31上,基板31定位於支撐座32上,並且,支撐座32可選用具有高熱傳導係數的材質所製成的散熱鰭片結構,當使用者欲拆卸、更換發光元件33時,僅需解焊發光元件33或卸除發光元件33與基板31,支撐架32不更換,使得拆卸、更換發光元件33與基板31之作業更為簡便。在此,前述說明關於光源模組3之結構僅為舉例,本發明非以此為限,在一些實施例中,光源模組3可僅由基板31與發光元件33所組成, 抑或是僅具有發光元件33。The light source module 3 can be mainly composed of a substrate 31, a support base 32 and a light-emitting element 33. The light-emitting element 33 is soldered on the substrate 31, the substrate 31 is positioned on the support base 32, and the support base 32 can be selected to have a high heat transfer coefficient. When the user wants to disassemble and replace the light-emitting element 33, the light-emitting element 33 needs to be unshielded or the light-emitting element 33 and the substrate 31 are removed, and the support frame 32 is not replaced, so that the heat-dissipating fin structure is removed. The operation of the light-emitting element 33 and the substrate 31 is simpler. The foregoing description of the structure of the light source module 3 is only an example, and the present invention is not limited thereto. In some embodiments, the light source module 3 may be composed only of the substrate 31 and the light-emitting element 33. Or is it only having the light-emitting element 33.

框架5主要可由本體部51與反射部52所組成,其中,本體部51為可由相連之第一板件511與第二板件512所組成,其中,第一板件511實質上垂直連接於第二板件512,其截面概呈L字體型,並且,在一些實施例中,第二板件512可提供反射光線之功用。此外,第二板件512於末端處設有呈凹槽狀之承載部513,用以設置光學組件9(例如擴散片或其他光學膜片)。反射部52之一端連接於本體部51,因此可於本體部51與反射部52之間形成容置空間53,用以設置複數光源模組3。在本實施例中,反射部52之一端連接於第二板件512末端之承載部513,另一端與第一板件511之設置方向同向地延伸,並且,反射部52與第一板件511之間的間距由反射部52連接承載部513處朝另一端逐漸減少,換言之,反射部52連接承載部513之一端與第一板件511之間的間距大於另一端與第一板件511之間的間距。前述說明關於框架5之結構僅為舉例,本發明非以此為限,在一些實施例中,框架5不設置承載部513,反射部52之一端直接連接於第二板件512。The frame 5 is mainly composed of a body portion 51 and a reflection portion 52. The body portion 51 is composed of a first plate member 511 and a second plate member 512 connected thereto, wherein the first plate member 511 is substantially perpendicularly connected to the first plate member 511. The two plates 512 are generally L-shaped in cross-section, and, in some embodiments, the second plate 512 can provide the function of reflecting light. In addition, the second plate member 512 is provided at the end with a groove-shaped bearing portion 513 for arranging the optical component 9 (for example, a diffusion sheet or other optical film). One end of the reflecting portion 52 is connected to the main body portion 51. Therefore, an accommodating space 53 can be formed between the main body portion 51 and the reflecting portion 52 for arranging the plurality of light source modules 3. In this embodiment, one end of the reflecting portion 52 is connected to the carrying portion 513 at the end of the second plate member 512, the other end extends in the same direction as the setting direction of the first plate member 511, and the reflecting portion 52 and the first plate member The spacing between the 511 is gradually reduced by the reflection portion 52 connecting the bearing portion 513 toward the other end. In other words, the distance between the one end of the reflection portion 52 connecting the bearing portion 513 and the first plate member 511 is greater than the other end and the first plate member 511. The spacing between them. The foregoing description of the structure of the frame 5 is only an example, and the present invention is not limited thereto. In some embodiments, the frame 5 is not provided with the bearing portion 513, and one end of the reflecting portion 52 is directly connected to the second plate member 512.

導光棒7為長條狀之管件,並可由玻璃或塑膠等材質所製成。在此,反射部52設有缺口521(如第2圖所示),因此,導光棒7之一端可經由缺口521穿過反射部52而位於發光元件33之側邊,使得導光棒7之入光面對位於發光元件33的投射方向上。The light guiding rod 7 is a long tube-shaped tube and can be made of a material such as glass or plastic. Here, the reflecting portion 52 is provided with a notch 521 (as shown in FIG. 2). Therefore, one end of the light guiding rod 7 can pass through the reflecting portion 52 via the notch 521 and be located on the side of the light-emitting element 33, so that the light guiding rod 7 The incident light is located in the projection direction of the light-emitting element 33.

請再參閱第1圖與第3圖,本體部51之第二板件512靠近光學組件9之一端與反射部52之末端(反射部52未連接承載部513之一端)之間由於光輝度較低而形成暗帶區域X,由於框架5之反射部52為朝向第一板件 511傾斜延伸,因此,由使用者之視角觀之,暗帶區域X會被本體部51之第二板件512遮蔽,藉以消除暗帶區域X。Referring to FIG. 1 and FIG. 3 again, the second plate member 512 of the main body portion 51 is close to one end of the optical component 9 and the end of the reflecting portion 52 (the reflecting portion 52 is not connected to one end of the carrying portion 513) due to the brightness. Low to form the dark band area X, since the reflecting portion 52 of the frame 5 is facing the first plate The 511 extends obliquely, so that the dark band region X is obscured by the second plate member 512 of the body portion 51 from the perspective of the user, thereby eliminating the dark band region X.

請參閱第4A圖,導光棒7係截面為矩形之長條管件,具有兩個相對之出光面71,並分別於各個出光面71上佈設微結構72,其中,一個出光面71面向光學組件9,另一個出光面71面向背蓋6或反射件62(如第1圖所示)。請參閱第4B圖,導光棒7亦可僅在面向光學組件9之一面作為出光面71而設置微結構72。在此,微結構72可為突凸狀的油墨或凹點結構,抑或是其他可破壞出光面71的平整度之結構。Referring to FIG. 4A, the light guide bar 7 is a rectangular tubular member having a rectangular cross section, and has two opposite light emitting surfaces 71, and respectively disposed on each of the light emitting surfaces 71 with a microstructure 72, wherein one light emitting surface 71 faces the optical component 9. The other light exiting surface 71 faces the back cover 6 or the reflector 62 (as shown in Fig. 1). Referring to FIG. 4B, the light guiding rod 7 may also be provided with the microstructure 72 only as a light-emitting surface 71 facing one surface of the optical component 9. Here, the microstructures 72 can be convex ink or pit structures, or other structures that can break the flatness of the light surface 71.

在一些實施例中,請參閱第4C圖,導光棒7之截面為呈倒三角形狀,導光棒7在面向光學組件9之一面作為出光面71而設置微結構72。In some embodiments, referring to FIG. 4C, the light guide bar 7 has an inverted triangular shape, and the light guide bar 7 is provided with a microstructure 72 as a light exit surface 71 on one side of the optical component 9.

在一些實施例中,請參閱第4D圖,導光棒7之截面為呈六角形,導光棒7在面向光學組件9之三個相連之平面作為出光面71而分別設置微結構72。In some embodiments, referring to FIG. 4D, the light guide bar 7 has a hexagonal cross section, and the light guide bar 7 is provided with a microstructure 72 on the three connected planes facing the optical component 9 as the light exit surface 71, respectively.

在一些實施例中,請參閱第4E圖,導光棒7之截面為呈圓形,導光棒7在面向光學組件9之上半部作為出光面71而設置微結構72。In some embodiments, referring to FIG. 4E, the light guide bar 7 has a circular cross section, and the light guide bar 7 is provided with a microstructure 72 as a light exit surface 71 facing the upper half of the optical component 9.

前述關於導光棒7之結構說明僅為舉例,本發明非以此為限,導光棒7可為任意形狀之長條管件,並且,依據實際設計需求,導光棒7可於其外表面上的任何部分設置微結構72。The foregoing description of the structure of the light guiding rod 7 is merely an example, and the invention is not limited thereto. The light guiding rod 7 can be a long tube of any shape, and the light guiding rod 7 can be on the outer surface according to actual design requirements. The microstructure 72 is disposed on any portion of the upper portion.

請再參閱第1圖及第2圖,本發明之背光模組1更包含背蓋6,背蓋6位在於背光模組1的底部,背蓋6的一端嵌於容置空間53內,並於其彎角處設置複數光源模組3。在一些實施例中,導光棒7上可設置有支撐件61,用以支撐導光棒7而使導光棒7與背蓋6之間具有間距L2,並且,間距L2 較佳地為小於2mm。此外,背蓋6可設有反射件62,用以反射光線。當背蓋6設有反射件62時,前述間距L2為導光棒7與反射件62之間的距離。此外,導光棒7與光學組件9之間的距離為間距L1,在本實施例中,導光棒7與光學組件9之間的間距大於導光棒7與背蓋6(或反射件62)之間的間距,換言之,間距L1較佳地為大於間距L2。前述關於支撐件61之說明僅為舉例,本發明非以此為限,在一些實施例中,導光棒7可貼附於背蓋6之表面。Referring to FIG. 1 and FIG. 2 again, the backlight module 1 of the present invention further includes a back cover 6 , and the back cover 6 is located at the bottom of the backlight module 1 , and one end of the back cover 6 is embedded in the accommodating space 53 , and A plurality of light source modules 3 are disposed at the corners thereof. In some embodiments, the light guiding rod 7 may be provided with a supporting member 61 for supporting the light guiding rod 7 so as to have a spacing L2 between the light guiding rod 7 and the back cover 6, and the spacing L2 It is preferably less than 2 mm. In addition, the back cover 6 may be provided with a reflecting member 62 for reflecting light. When the back cover 6 is provided with the reflecting member 62, the aforementioned distance L2 is the distance between the light guiding rod 7 and the reflecting member 62. In addition, the distance between the light guiding rod 7 and the optical component 9 is the distance L1. In the present embodiment, the distance between the light guiding rod 7 and the optical component 9 is larger than that of the light guiding rod 7 and the back cover 6 (or the reflecting member 62). The spacing between, in other words, the spacing L1 is preferably greater than the spacing L2. The foregoing description of the support member 61 is merely an example, and the present invention is not limited thereto. In some embodiments, the light guide bar 7 can be attached to the surface of the back cover 6.

請參第5圖,最靠近反射部52之微結構72與導光棒7穿過反射部52之位置處之間的距離g大於或等於1mm,換言之,最靠近反射部52之微結構72距離反射部52至少為1mm;藉此,消除開孔處亮點與減少非可視發光區之光耗。Referring to FIG. 5, the distance g between the microstructure 72 closest to the reflecting portion 52 and the position where the light guiding rod 7 passes through the reflecting portion 52 is greater than or equal to 1 mm, in other words, the distance of the microstructure 72 closest to the reflecting portion 52. The reflecting portion 52 is at least 1 mm; thereby, the bright spot at the opening is eliminated and the light consumption of the non-visible light emitting region is reduced.

由於導光棒7之微結構72會破壞全反射,因此於微結構72處或微結構72之周圍平面區會出光,因而於出光處形成開口73。而開口率係指為導光棒7單位面積內立體微結構投影於導光棒7平面之比例,開口率越高,越容易出光。開口率的大小隨著微結構72與發光元件33之間的距離而改變,其中,微結構72與發光元件33之間的距離愈近,其開口率愈大,反之,距離愈遠者,開口率愈小;換言之,複數微結構72之開口率與複數微結構72、複數光源模組3之間的距離呈正比。在一些實施例中,如第6圖所示,導光棒7之二端分別耦合設置發光元件33,導光棒7中央處之開口率大,二端之開口率小。Since the microstructure 72 of the light guiding rod 7 will destroy the total reflection, light will be emitted at the microstructure 72 or in the surrounding planar region of the microstructure 72, thereby forming an opening 73 at the light exiting portion. The aperture ratio is a ratio of the stereoscopic microstructure per unit area of the light guiding rod 7 projected on the plane of the light guiding rod 7, and the higher the aperture ratio, the easier the light is emitted. The opening ratio varies with the distance between the microstructure 72 and the light-emitting element 33, wherein the closer the distance between the microstructure 72 and the light-emitting element 33 is, the larger the aperture ratio is, and the farther the distance is, the opening is opened. The smaller the rate; in other words, the aperture ratio of the complex microstructure 72 is proportional to the distance between the complex microstructure 72 and the complex light source module 3. In some embodiments, as shown in FIG. 6, the light-emitting elements 33 are respectively coupled to the two ends of the light-guiding rod 7, and the aperture ratio at the center of the light-guiding rod 7 is large, and the aperture ratio at both ends is small.

請參閱第5圖及第7圖,發光元件33朝導光棒7投射光線,經由導光棒7之導引,由其出光面71上之開口73射出,其光線的出光峰值方向與 出光面71之間會形成夾角θ 1,傾斜的反射部52面向第一板件511之一面與導光棒7之間為夾角θ 2,其中,夾角θ 1大於夾角θ 2,並且,夾角θ 2較佳地為大於90°。Referring to FIGS. 5 and 7, the light-emitting element 33 projects light toward the light guiding rod 7, and is guided by the light guiding rod 7, and is emitted from the opening 73 of the light-emitting surface 71, and the light output peak direction is An angle θ is formed between the light-emitting surfaces 71, and the inclined reflecting portion 52 faces an angle θ 2 between the surface of the first plate member 511 and the light guiding rod 7, wherein the angle θ 1 is larger than the angle θ 2 and the angle θ 2 is preferably greater than 90°.

請參閱第1圖、第2圖與第8圖,本發明之背光模組1更包含夾持件8,用以夾持光源模組3與導光棒7,在本實施例中,夾持件8之一部分位於容置空間53內,另一部分穿過缺口521,惟夾持件8穿過缺口521之結構僅為舉例,本發明非以此為限,其可依據光源模組3之位置而改變,不一定會穿過缺口521。在此,導光棒7與光源模組3之間的距離d為小於或等於2 mm,因此,夾持件8之長度D較佳地為大於2 mm。在一些實施例中,夾持件8可選用彈性材質所製成,並於其內表面設置反光層81,以反射發光元件33所投射之光線。Referring to FIG. 1 , FIG. 2 and FIG. 8 , the backlight module 1 of the present invention further comprises a clamping member 8 for clamping the light source module 3 and the light guiding rod 7 . In this embodiment, the clamping is performed. One part of the piece 8 is located in the accommodating space 53 and the other part passes through the notch 521, but the structure of the clamping member 8 passing through the notch 521 is only an example, and the invention is not limited thereto, and the position of the light source module 3 can be determined according to the position of the light source module 3 The change does not necessarily pass through the gap 521. Here, the distance d between the light guiding rod 7 and the light source module 3 is less than or equal to 2 mm, and therefore, the length D of the holding member 8 is preferably greater than 2 mm. In some embodiments, the clamping member 8 can be made of an elastic material, and a reflective layer 81 is disposed on the inner surface thereof to reflect the light projected by the light-emitting element 33.

請參閱第9圖,為本發明之第二實施例,為光學組件與導光棒之局部示意圖。在本實施例中,光學組件9包含擴散板91,並且,擴散板91之一面為面向導光棒7,相對之另一面則設有微結構911,以提供分光效果。在一些實施例中,擴散板91於面向導光棒7之一面上亦可設置微結構。在此,微結構911為咬花結構,導光棒7可平行於擴散板91之長邊方向,亦可平行於擴散板91之短邊方向(圖未示)。Please refer to FIG. 9 , which is a partial schematic view of an optical component and a light guiding rod according to a second embodiment of the present invention. In the present embodiment, the optical component 9 includes a diffusing plate 91, and one surface of the diffusing plate 91 is a surface guiding light bar 7, and the other side is provided with a microstructure 911 to provide a light splitting effect. In some embodiments, the diffusion plate 91 may also be provided with a microstructure on one side of the surface guiding light bar 7. Here, the microstructure 911 is a bite structure, and the light guiding rod 7 may be parallel to the longitudinal direction of the diffusing plate 91 or parallel to the short side direction of the diffusing plate 91 (not shown).

在一些實施例中,微結構911可為一維結構,例如突凸狀的平面稜鏡或曲面稜鏡,抑或是半圓、半橢圓、非球面半圓、非球面橢圓之結構,導光棒7可平行於微結構911的設置方向。In some embodiments, the microstructure 911 can be a one-dimensional structure, such as a convex plane or a curved surface, or a semicircular, semi-elliptical, aspheric semicircular, aspherical elliptical structure, and the light guiding rod 7 can be Parallel to the direction in which the microstructures 911 are disposed.

本發明的實施例中,背光模組藉由框架的傾斜設計遮蔽暗帶部分,並以發光元件與導光棒的設置,替代冷陰極螢光燈管的發光效果。此外,本 發明藉由導光棒之設置可降低混光空間的高度,有效減少背光模組之厚度而達到薄型化之目的,並且,本發明可有效減少數量的發光元件達到降低成本之目的。In the embodiment of the present invention, the backlight module shields the dark band portion by the tilting design of the frame, and replaces the light emitting effect of the cold cathode fluorescent lamp tube with the arrangement of the light emitting element and the light guiding rod. In addition, this The invention can reduce the height of the light mixing space by the arrangement of the light guiding rod, effectively reduce the thickness of the backlight module and achieve the purpose of thinning, and the invention can effectively reduce the number of light emitting elements to achieve the purpose of reducing the cost.

雖然本發明的技術內容已經以較佳實施例揭露如上,然其並非用以限定本發明,任何熟習此技藝者,在不脫離本發明之精神所作些許之更動與潤飾,皆應涵蓋於本發明的範疇內,因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

1‧‧‧背光模組1‧‧‧Backlight module

3‧‧‧光源模組3‧‧‧Light source module

31‧‧‧基板31‧‧‧Substrate

32‧‧‧支撐座32‧‧‧ support

33‧‧‧發光元件33‧‧‧Lighting elements

5‧‧‧框架5‧‧‧Frame

51‧‧‧本體部51‧‧‧ Body Department

511‧‧‧第一板件511‧‧‧ first board

512‧‧‧第二板件512‧‧‧Second board

513‧‧‧承載部513‧‧‧Loading Department

52‧‧‧反射部52‧‧‧Reflection Department

521‧‧‧缺口521‧‧‧ gap

53‧‧‧容置空間53‧‧‧ accommodating space

6‧‧‧背蓋6‧‧‧Back cover

61‧‧‧支撐件61‧‧‧Support

62‧‧‧反射件62‧‧‧reflector

7‧‧‧導光棒7‧‧‧Light guide rod

71‧‧‧出光面71‧‧‧Glossy

72‧‧‧微結構72‧‧‧Microstructure

73‧‧‧開口73‧‧‧ openings

8‧‧‧夾持件8‧‧‧Clamping parts

81‧‧‧反光層81‧‧‧reflective layer

9‧‧‧光學組件9‧‧‧Optical components

91‧‧‧擴散板91‧‧‧Diffuser

911‧‧‧微結構911‧‧‧Microstructure

L1/L2‧‧‧間距L1/L2‧‧‧ spacing

D‧‧‧長度D‧‧‧ Length

d/g‧‧‧距離d/g‧‧‧distance

θ 1/θ 2‧‧‧夾角θ 1/θ 2‧‧‧ angle

X‧‧‧暗帶區域X‧‧‧Dark zone

第1圖為本發明之第一實施例之局部剖面示意圖。Figure 1 is a partial cross-sectional view showing a first embodiment of the present invention.

第2圖為本發明之第一實施例之局部外觀示意圖。Fig. 2 is a partial perspective view showing the first embodiment of the present invention.

第3圖為本發明之第一實施例之局部俯視示意圖。Figure 3 is a partial top plan view of the first embodiment of the present invention.

第4A圖為本發明之導光棒之截面示意圖(一)。Fig. 4A is a schematic cross-sectional view (I) of the light guiding rod of the present invention.

第4B圖為本發明之導光棒之截面示意圖(二)。Fig. 4B is a schematic cross-sectional view (2) of the light guiding rod of the present invention.

第4C圖為本發明之導光棒之截面示意圖(三)。Fig. 4C is a schematic cross-sectional view (3) of the light guiding rod of the present invention.

第4D圖為本發明之導光棒之截面示意圖(四)。Fig. 4D is a schematic cross-sectional view (4) of the light guiding rod of the present invention.

第4E圖為本發明之導光棒之截面示意圖(五)。Fig. 4E is a schematic cross-sectional view (5) of the light guiding rod of the present invention.

第5圖為本發明之發光狀態之局部剖面示意圖。Figure 5 is a partial cross-sectional view showing the state of illumination of the present invention.

第6圖為本發明之整體側視示意圖。Figure 6 is a schematic side elevational view of the present invention.

第7圖為本發明之出光峰值數據圖。Figure 7 is a graph of the light peak data of the present invention.

第8圖為本發明之光源模組與導光棒之局部示意圖。Figure 8 is a partial schematic view of the light source module and the light guiding rod of the present invention.

第9圖為本發明之第二實施例之光學組件與導光棒之局部示意圖。Figure 9 is a partial schematic view showing the optical component and the light guiding rod of the second embodiment of the present invention.

1‧‧‧背光模組1‧‧‧Backlight module

3‧‧‧光源模組3‧‧‧Light source module

31‧‧‧基板31‧‧‧Substrate

32‧‧‧支撐座32‧‧‧ support

33‧‧‧發光元件33‧‧‧Lighting elements

5‧‧‧框架5‧‧‧Frame

51‧‧‧本體部51‧‧‧ Body Department

511‧‧‧第一板件511‧‧‧ first board

512‧‧‧第二板件512‧‧‧Second board

513‧‧‧承載部513‧‧‧Loading Department

52‧‧‧反射部52‧‧‧Reflection Department

521‧‧‧缺口521‧‧‧ gap

53‧‧‧容置空間53‧‧‧ accommodating space

6‧‧‧背蓋6‧‧‧Back cover

61‧‧‧支撐件61‧‧‧Support

62‧‧‧反射件62‧‧‧reflector

7‧‧‧導光棒7‧‧‧Light guide rod

71‧‧‧出光面71‧‧‧Glossy

72‧‧‧微結構72‧‧‧Microstructure

73‧‧‧開口73‧‧‧ openings

8‧‧‧夾持件8‧‧‧Clamping parts

81‧‧‧反光層81‧‧‧reflective layer

9‧‧‧光學組件9‧‧‧Optical components

91‧‧‧擴散板91‧‧‧Diffuser

L1/L2‧‧‧間距L1/L2‧‧‧ spacing

Claims (17)

一種背光模組,包含:複數發光元件;一框架,包含一本體部與一反射部,該本體部與該反射部之間形成一容置空間以設置該些發光元件,該反射部連接於該本體部,並朝向該些發光元件傾斜延伸;及複數導光棒,一端位於該些發光元件之側邊,其中,該反射部面向該些導光棒,其中每一該導光棒包含至少一出光面及複數微結構,該些微結構位於該出光面。 A backlight module includes: a plurality of light-emitting elements; a frame comprising a body portion and a reflection portion, and an accommodation space is formed between the body portion and the reflection portion to provide the light-emitting elements, wherein the reflection portion is coupled to the a body portion extending obliquely toward the light-emitting elements; and a plurality of light-guiding rods, one end of which is located at a side of the light-emitting elements, wherein the reflecting portion faces the light-guiding rods, wherein each of the light-guiding rods comprises at least one a light-emitting surface and a plurality of microstructures, the microstructures being located on the light-emitting surface. 如請求項1所述之背光模組,其中該本體部包含一承載部,用以設置一光學組件。 The backlight module of claim 1, wherein the body portion comprises a carrying portion for arranging an optical component. 如請求項2所述之背光模組,更包含一背蓋,一端嵌於該容置空間內。 The backlight module of claim 2 further includes a back cover, one end of which is embedded in the accommodating space. 如請求項3所述之背光模組,其中該背蓋包含複數支撐件,支撐該些導光棒。 The backlight module of claim 3, wherein the back cover comprises a plurality of support members for supporting the light guide bars. 如請求項3所述之背光模組,其中該些導光棒與該背蓋之間的間距小於2mm。 The backlight module of claim 3, wherein a distance between the light guide bars and the back cover is less than 2 mm. 如請求項5所述之背光模組,其中該些導光棒貼附於該背蓋上。 The backlight module of claim 5, wherein the light guide bars are attached to the back cover. 如請求項5所述之背光模組,其中該些導光棒與該光學組件之間的間距大於該些導光棒與該背蓋之間的間距。 The backlight module of claim 5, wherein a distance between the light guide bars and the optical component is greater than a distance between the light guide bars and the back cover. 如請求項所述3之背光模組,其中該背蓋包含一反射件,反射該些發光元件所投射之光線。 The backlight module of claim 3, wherein the back cover comprises a reflective member that reflects the light projected by the light emitting elements. 如請求項2所述之背光模組,其中該光學組件包含複數微結構,該些導 光棒平行該些微結構之設置方向。 The backlight module of claim 2, wherein the optical component comprises a plurality of microstructures, and the guides The light bar is parallel to the direction in which the microstructures are placed. 如請求項1所述之背光模組,其中該些導光棒與該些發光元件之間的距離小於等於2mm。 The backlight module of claim 1, wherein a distance between the light guiding rods and the light emitting elements is less than or equal to 2 mm. 如請求項10所述之背光模組,更包含一夾持件,夾持該導光棒。 The backlight module of claim 10 further comprising a clamping member for holding the light guiding rod. 如請求項11所述之背光模組,其中該夾持件包含一反光層,反射該些發光元件所投射之光線。 The backlight module of claim 11, wherein the clamping member comprises a light reflecting layer that reflects the light projected by the light emitting elements. 如請求項11所述之背光模組,其中該夾持件之長度大於2mm。 The backlight module of claim 11, wherein the length of the clamping member is greater than 2 mm. 如請求項1所述之背光模組,其中該些微結構與該導光棒穿過該反射部之位置之間的距離大於等於1mm。 The backlight module of claim 1, wherein a distance between the microstructures and a position at which the light guiding rod passes through the reflecting portion is greater than or equal to 1 mm. 如請求項1所述之背光模組,其中該些微結構之開口率與該些微結構、該些發光元件之間的距離呈正比。 The backlight module of claim 1, wherein an aperture ratio of the microstructures is proportional to a distance between the microstructures and the light-emitting elements. 如請求項1所述之背光模組,其中該些發光元件所投射之光線經由該些微結構的出光峰值方向與該出光面之夾角大於該反射部與該導光棒之夾角。 The backlight module of claim 1 , wherein an angle between a light-emitting peak direction of the light-emitting elements and the light-emitting surface is greater than an angle between the reflective portion and the light-guiding rod. 如請求項16所述之背光模組,其中該反射部與該導光棒之夾角大於90°。 The backlight module of claim 16, wherein an angle between the reflecting portion and the light guiding rod is greater than 90°.
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