201122366 六、發明說明： [0001] 【發明所屬之技術領威】 本發明係為/種具有環佈發光件之多邊形無導光板 發光模組，特別是指於背光模組或其他類似發光構造中 ，不使用導光板亦能由擴散板散射出均勻之發光面 [先前技術3 [0002] 一般背光模組構造為導引光線作適當及多角度之反 〇 射皆會設置導光板，如中華民國專利第M359718號「側光 式背光模組」，其包括複數倜發光二極體、一導光板、 • 一增亮膜及一擴散片，每一赛惠$極體具有一發光面， 發光二極體之發光面皆朝同一方向’導光板設於發光二 極體之一側，並且具有一入光面、「一出光面及一底面’ 導光板之入光面朝向發光二極體之發光面，導光板之出 光面鄰接於入光面之一侧，導光板之底面相對於出光面 且鄰接於入光面之另一侧並具有複數個微光學結構及複 數個平坦區，平坦區與入光面相交於一交界線，平坦區 之位置分別對應於這些發光二極體之發光面，增亮膜設 於導光板之出光面的上方，擴散片則設於增亮膜之上方 ，然其缺點在於： 1. 目前應用背光模組最多之液晶顯示器正逐漸朝薄 形化發展，而習知背光模組之導光板會使整體液晶顯示 器無法有效減少其厚度，且導光板會吸收光能’降低背 光模組之出光效率，另外導光板之設置不僅製程程序增 加’亦使背光模組之成本增加。 2. 習知背光模組之光源皆設置於導光板之二側’容 098146385 易有二側照度較高，而中段照度較低之現象。 表單編號A0101 第3頁/共20頁 0982079073-0 201122366 故有美國專利第7350951號「Planar light source device and display device using the same device」，其藉由改變底部光學反射板之結構而 構成不使用導光板之發光構造，而增加出光量，然其缺 點在於： 其雖然解決設置導光板使出光效率不佳之缺失，但 側光式光源仍有兩侧照度高，而愈往背光模組中段照度 越低之現象，另外僅設計光學反射板中段隆起，恐有光 線無法有效自光學反射板作多角度反射，而形成背光模 組照度不均之疑慮。 【發明内容】 [0003] 爰此，有鑑於習知發光模組的缺失，故本發明提供 一種具有環佈發光件之多邊形無導光板發光模組，包括 一光學底板，係呈多邊形，且該光學底板至少於該 中央位置處設置一隆起段，該隆起段則形成一隆起面； 複數個發光件，係環設於該光學底板周緣，該些發光件 之輻射半功率角為15度以下，而分別形成一光軸方向， 且該些發光件之光軸方向係朝向該隆起面，又以該光軸 方向為中心分別形成一光輻射場，該光輻射場則投射置 該隆起面；一擴散板，係設置於該光學底板之隆起段的 隆起方向上。 上述發光件之輻射半功率角為5度至15度。 上述發光件係為LED燈條。 上述光學底板周緣連接一反射罩，該些發光件固接 098146385 於該反射罩内，該擴散板則連接於該反射罩上。 表單編號A0101 第4頁/共20頁 0982079073-0 201122366 上述光學底板上設置一光學薄膜。 上述光學底板之隆起段的隆起面係設置複數個不規 則形之缺槽。 上述光學底板之隆起段的隆起面係設置複數個V形切 槽。 本發明具有下列之優點： ： 1. 本發明於光學底板周緣環設發光件，解決側光式 發光模组僅在於具有發光件之側邊照度較高，而不具有 發光件之側邊則照度不足之現象。 Ο [0004] 〇 098146385 2. 本發明光學底板呈多邊形錐狀隆起，且其周緣環 設發光件，使光線可在光學底板作更多角度之反射，使 光線經由擴散板散射出之光線更為均勻。 【實施方式】 請參閱第一圖、第二圖及第三圖所示，本發明係為 一種具有環佈發光件之多邊形無導光板發光模組，係將 其組設於一框架（Α)上實施，包括： 一光學底板（1)，係呈多邊形，本實施例以六邊形 .... 為例，且該光學底板（1)至少於該中央位置處設置一隆 起段（11)，該隆起段（11)則形成一隆起面（111); 一反射罩（2) ’連接於該光學底板（1)周緣；複數個 發光件（3) ’係可為LED燈條，其係環設於該光學底板 (1)周緣，並固接於該反射罩（2)内，該些發光件（3 )之輻射半功率角為15度以下，而具有高指向性，且其 最佳範圍則為5度至15度，該些發光件（3)並分別形成 一光轴方向（31)，且該些發光件（3)之光轴方向（μ )係朝向該隆起面（111)[請參閱第三圖及第四圖，係 表單編號A0101 第5頁/共20頁 098207卯73-0 201122366 為該些發光件（3)平行指向該隆起面（111)或斜向指 向該隆起面（111)之示意圖，唯其皆朝向該隆起面（ 111 )]，又以該光軸方向（31)為中心分別形成一光輻 射場（3 2 )’該光輻射場（3 2 )則投射置該隆起面（111 )[請參閱第六圖，為避免圖示過於複雜，僅繪出該光學 底板（1)三個侧邊之發光件（3)的光軸方向及 光輻射場（32)]; —擴散板（4)，係設置於該光學底 板（1)之隆起段（11)的隆起方向上，本實施例該擴散 板（4 )則連接於該反射罩（2 )上。201122366 VI. Description of the Invention: [0001] The present invention is a polygonal non-light guide light-emitting module having a ring-shaped light-emitting member, particularly in a backlight module or other similar light-emitting structure. The uniform light-emitting surface can be scattered by the diffuser without using the light guide plate. [Prior Art 3 [0002] Generally, the backlight module is configured to guide the light for proper and multi-angle anti-projection, and the light guide plate is disposed, such as the Republic of China. Patent No. M359718, "Side-lit backlight module", which comprises a plurality of light-emitting diodes, a light guide plate, a brightness enhancement film and a diffusion sheet, each of which has a light-emitting surface and a light-emitting surface The light-emitting surface of the polar body is in the same direction. The light guide plate is disposed on one side of the light-emitting diode, and has a light-incident surface, a light-emitting surface, and a bottom surface. The light-emitting surface of the light guide plate is directed toward the light-emitting diode. The light-emitting surface of the light guide plate is adjacent to one side of the light-incident surface, and the bottom surface of the light guide plate is opposite to the light-emitting surface and adjacent to the other side of the light-incident surface and has a plurality of micro-optical structures and a plurality of flat regions, the flat region and Glossy phase At a boundary line, the positions of the flat regions respectively correspond to the light-emitting surfaces of the light-emitting diodes, the brightness-increasing film is disposed above the light-emitting surface of the light guide plate, and the diffusion sheet is disposed above the brightness-enhancing film, but the disadvantage is that 1. At present, the liquid crystal display with the most backlight modules is gradually becoming thinner, and the light guide plate of the conventional backlight module can make the overall liquid crystal display unable to effectively reduce its thickness, and the light guide plate can absorb light energy to reduce the backlight. The light-emitting efficiency of the module, and the setting of the light guide plate not only increases the process procedure, but also increases the cost of the backlight module. 2. The light source of the conventional backlight module is disposed on the two sides of the light guide plate. 098146385 Easy to have two-side illumination The phenomenon is higher, and the illumination in the middle is lower. Form No. A0101 Page 3 of 20 0982079073-0 201122366 There is a US Patent No. 7305951 "Planar light source device and display device using the same device", which is changed by The structure of the bottom optical reflector constitutes a light-emitting structure that does not use a light guide plate, and increases the amount of light, but the disadvantage is that: although it solves the problem of setting the light guide plate The lack of light output efficiency is lacking, but the side light source still has high illumination on both sides, and the lower the illumination in the middle of the backlight module, the other is only designed to illuminate the middle section of the optical reflector, and the light may not be effective from the optical reflector. Multi-angle reflection, and the doubt that the illumination of the backlight module is uneven. SUMMARY OF THE INVENTION [0003] In view of the absence of the conventional light-emitting module, the present invention provides a polygonal non-light-guide plate light-emitting module having a ring-shaped light-emitting member, including an optical bottom plate, which is polygonal, and The optical bottom plate is provided with a ridge portion at least at the central position, and the ridge portion forms a ridge surface; a plurality of illuminating members are disposed on the periphery of the optical bottom plate, and the radiant half power angle of the illuminating members is 15 degrees or less. Forming an optical axis direction, and the optical axis directions of the illuminating members face the ridge surface, and respectively forming an optical radiation field centering on the optical axis direction, wherein the optical radiation field projects the ridge surface; The diffuser plate is disposed in a bulging direction of the ridge portion of the optical base plate. The illuminating member has a radiation half power angle of 5 to 15 degrees. The above-mentioned light-emitting member is an LED light bar. The periphery of the optical bottom plate is connected to a reflector, and the light-emitting members are fixed in the reflector 612146385, and the diffusion plate is connected to the reflector. Form No. A0101 Page 4 of 20 0982079073-0 201122366 An optical film is placed on the above optical substrate. The raised surface of the raised section of the optical bottom plate is provided with a plurality of irregular shaped missing grooves. The embossing surface of the raised section of the optical bottom plate is provided with a plurality of V-shaped slits. The invention has the following advantages: 1. The invention is provided with a light-emitting member around the periphery of the optical bottom plate, and the side-light type light-emitting module is only solved in that the side of the light-emitting member has a high illumination, and the side of the light-emitting member is not illuminated. Insufficient phenomenon. Ο [0004] 〇 098146385 2. The optical bottom plate of the invention has a polygonal pyramid-like bulge, and a light-emitting member is arranged around the periphery thereof, so that the light can be reflected at a greater angle on the optical substrate, so that the light scatters light through the diffusion plate. Evenly. [Embodiment] Referring to the first, second, and third figures, the present invention is a polygonal non-light guide light-emitting module having a ring-shaped light-emitting member, which is assembled in a frame (Α) The above embodiment comprises: an optical bottom plate (1) having a polygonal shape, and the embodiment is a hexagonal shape, and the optical bottom plate (1) is provided with a ridge portion (11) at least at the central position. The ridge portion (11) forms a ridge surface (111); a reflector (2) 'connects to the periphery of the optical substrate (1); a plurality of illuminating members (3) ' can be LED strips, The ring is disposed on the periphery of the optical base plate (1) and is fixed in the reflector (2). The illuminating members (3) have a radiation half power angle of 15 degrees or less, and have high directivity and are optimal. The range of the light-emitting members (3) is an optical axis direction (31), and the optical axis direction (μ) of the light-emitting members (3) faces the raised surface (111). [Please refer to the third and fourth figures, the form number A0101, page 5 / 20 pages 098207 卯 73-0 201122366 for the illuminating members (3) pointing in parallel to the bulging surface (111) or a schematic view obliquely pointing to the raised surface (111), all facing the raised surface (111)], and respectively forming an optical radiation field (3 2 ) centered on the optical axis direction (31) The light radiation field (3 2 ) projects the raised surface (111 ) [refer to the sixth figure, in order to avoid the complexity of the illustration, only the three sides of the optical bottom plate (1) are drawn (3) The optical axis direction and the optical radiation field (32)]; the diffusion plate (4) is disposed in the bulging direction of the ridge portion (11) of the optical base plate (1), and the diffusion plate (4) of the embodiment is Connected to the reflector (2).
使用時，請參閲第五厨及第六圖所示，由於該發光 件（3)之輻射半功率角為15度以下’故該發光件（3) 具有高指向性，其形成之光轴方向（31)並朝向該隆起 面（111)，而該光輻射場（32)則投射置該隆起面（When using, please refer to the fifth kitchen and the sixth figure. Since the radiant half power angle of the illuminating member (3) is 15 degrees or less, the illuminating member (3) has high directivity, and the optical axis formed thereof Direction (31) and facing the raised surface (111), and the optical radiation field (32) projects the raised surface (
111 )，藉此，大部份光線將被投射至該光學底板（1) 之隆起面（11)，降低直接由該擴散板（4)鄰近該些發 光件（3 )位置處散射出之光線，避免該擴散板（4 )周 緣之照度大於該擴散板（4)中段之照度，另外，該反射 罩（2)可反射該些發光件（3)非往該光學底板投 射之光線，亦能增加整體之發光效率，而該光學底板（i )之隆起段（11)越靠近中段處與該擴散板（4)之距離 越近’藉此可提高由該擴散板（4)中段散射出之光線， 而能改善該些發光件（3)位於該光學底板（1)周緣， 導致該擴散板（4)周緣散射出之發光照度大於中段之現 象’使光線由該擴散板（4)散射出後能形成均勻之發光 面’且由於該些發光件（3)環設於該光學底板（1 )周 緣’不會有僅具有該些發光件（3)之側邊照度較高，而 098146385 表單編號A0101 第6頁/共20頁 0982079073-0 201122366 不具有該些發光件（3 )之側邊照度較低現象’又該光學 底板（1)係至少於中央位置處設置該隆起段（11)，且 該發光件（3)環設於該光學底板〇)周緣，而能使光 線在該光學底板（1)作更多角度之反射，使光線經由該 擴散板（4)散射出之光線更為均勻。 請參閱第七圖所示，係可以電鍍、蒸鍍或濺鍍等薄 骐成型方法於該隆起面（111)設置一光學薄膜（5)， 該光學薄膜（5)具有調整光線方向及增加光反射率之功 效，提高由該擴散板（4)散射出之光線’提升發光照度 〇 。 請參閱第八圖所示，係以喷砂法或珠擊法於該隆起 面（111)設置複數個不規則形之缺槽（12)，當光線投 射至該隆起面（111)上之缺槽（12)後’能產生更為均 勻之·反射及散射’使由該擴散板（4)漱射出之光線產生 之發光面之亮度更為均勻。 請參閱第九圖所示，係於該隆起面（111 )設置複數 ◎ 個V形切槽（13)，使光線投射至該隆起面（1Π)時’ 其反射方向大都朝向該擴散板（4)方向，而能提高由該 擴散板（4)散射出之光線，提升發光照度。 請參閱第十圖所示，係將該光學底板（1)設置成為 八邊形，而當該光學底板（1)之側邊數目越多時，其侧 邊連接處更為平滑，可使光線分佈更為均勻，使側邊轉 彎處通常照度較低之現象獲得改善。 【圖式簡單說明】 [0005] 第 098146385 圖係為本發明配合框架實施之立體外觀圖。 第二圖係為本發明發光件環設於光學底板周緣之上 表單編號A0101 第7頁/技0n _ 20百 201122366 視圖。 第三圖係為本發明光抽方向平行指向隆起面之剖視 圖。 第四圖係為本發明光軸方向斜向指向隆起面之剖視 圖。 第五圖係為本發明使用時光線均勻由擴散板散射出 之示意圖。 第六圖係為本發明使用時發光件之光輻射場投射至 隆起面之示意圖。111), whereby most of the light will be projected onto the raised surface (11) of the optical substrate (1), reducing the light directly scattered from the position of the diffusing plate (4) adjacent to the light-emitting members (3) The illuminance of the periphery of the diffusing plate (4) is greater than the illuminance of the middle portion of the diffusing plate (4), and the reflecting cover (2) can reflect the light projected by the illuminating members (3) not to the optical substrate. Increasing the overall luminous efficiency, and the closer the ridge portion (11) of the optical bottom plate (i) is to the middle portion, the closer the distance to the diffusion plate (4) is, thereby increasing the scattering from the middle portion of the diffusion plate (4). Light, which can improve the illuminating member (3) at the periphery of the optical bottom plate (1), causing the illuminance of the radiant illuminance of the diffusing plate (4) to be larger than the middle portion of the diffusing plate (4) to scatter light from the diffusing plate (4) After that, a uniform light-emitting surface can be formed, and since the light-emitting members (3) are disposed on the periphery of the optical substrate (1), there is no side illumination having only the light-emitting members (3), and the 098146385 form No. A0101 Page 6 of 20 0982079073-0 201122366 Does not have these illuminators 3) the side illuminance is low. The optical bottom plate (1) is provided at least at the central position, and the illuminating member (3) is disposed around the periphery of the optical bottom plate. The light is reflected at the optical base plate (1) at a greater angle, so that the light scattered by the light diffusing plate (4) is more uniform. Referring to the seventh figure, an optical film (5) can be disposed on the raised surface (111) by a thin boring method such as electroplating, evaporation or sputtering, and the optical film (5) has an adjustment light direction and an increase in light. The effect of the reflectivity increases the light scattered by the diffuser plate (4) to enhance the illuminance illuminance. Referring to the eighth figure, a plurality of irregular shaped notches (12) are arranged on the raised surface (111) by sandblasting or beading, and the light is projected onto the raised surface (111). After the groove (12), it can produce more uniform reflection and scattering, so that the brightness of the light-emitting surface generated by the light emitted from the diffusion plate (4) is more uniform. Referring to the ninth figure, a plurality of V-shaped slots (13) are provided on the raised surface (111), so that when the light is projected onto the raised surface (1Π), the reflection direction thereof is mostly toward the diffusion plate (4). The direction is to increase the light scattered by the diffusing plate (4) and enhance the illuminance. Referring to the tenth figure, the optical base plate (1) is arranged in an octagonal shape, and when the number of sides of the optical base plate (1) is larger, the side joints are smoother and light can be made. The distribution is more uniform, and the phenomenon of lower illumination at the side turns is generally improved. BRIEF DESCRIPTION OF THE DRAWINGS [0005] No. 098,146,385 is a perspective view of a frame in accordance with the present invention. The second figure is the light-emitting member ring of the invention is arranged on the periphery of the optical bottom plate. Form No. A0101 Page 7 / Technology 0n _ 20 hundred 201122366 View. The third figure is a cross-sectional view of the light-drawn direction of the present invention directed parallel to the raised surface. The fourth figure is a cross-sectional view of the optical axis direction obliquely pointing to the ridge surface of the present invention. The fifth figure is a schematic view of the light uniformly scattered by the diffusing plate when used in the present invention. The sixth figure is a schematic view of the light radiation field of the illuminating member projected onto the embossed surface when the invention is used.
第七圖係為本發明隆起面設置光學薄膜之示意圖。 第八圖係為本發明隆起面設置不規則形缺槽之示意 圖。 第九圖係為本發明隆起面設置v形切槽之示意圖。 第十圖係為本發明光學底板設為八邊形之示意圖。 [0006] 【主要元件符號說明】 (1) 光學底板 (1 1 1 )隆起面 (13) V形切槽 (2) 反射罩 (3) 發光件 (32) 光輻射場 (5) 光學薄膜 (11) 隆起段 (12) 缺槽 (31) 光軸方向 (4) 擴散板 (A ) 框架The seventh figure is a schematic view showing the arrangement of an optical film on the embossed surface of the present invention. The eighth figure is a schematic view showing the arrangement of irregular shaped vacancies in the embossed surface of the present invention. The ninth figure is a schematic view showing the setting of a v-shaped slit in the raised surface of the present invention. The tenth figure is a schematic view showing the optical bottom plate of the present invention as an octagon. [0006] [Main component symbol description] (1) Optical bottom plate (1 1 1 ) raised surface (13) V-shaped groove (2) Reflector (3) Light-emitting member (32) Optical radiation field (5) Optical film ( 11) Uplift section (12) Notch (31) Optical axis direction (4) Diffusion plate (A) Frame
098146385 表單編號A0101 第8頁/共20頁 0982079073-0098146385 Form No. A0101 Page 8 of 20 0982079073-0