I352I80 六、發明說明： 【發明所屬之技術領域】 [0001] 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，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】 [0002] 一般背光模組構造為導引光線作適當及多角度之反 射皆會設置導光板，如中華民國專利第M359718號「侧光 式背光模組」，其包括複數個發光二極體、一導光板、 一增亮膜及一擴散片，每一發光二極體具有一發光面， 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側，導光板之底面相對於出光面 且鄰接於入光面之另一側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侧，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 1352180 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 側光式光源仍有兩側照度高，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t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 於該反射罩内，該擴散板則連接於該反射罩上。 098146385 表單編號A0101 第4頁/共20頁 0982079073-0 1352180 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 發光模組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。 • 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句。 【實施方式】 [0004] 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（A)上實施，包括: . … 一光學底板（1 )，係呈多:邊形，本實施例以六邊形 w 為例，且該光學底板（i)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 一光軸方向（31)，且該些發光件（3)之光軸方向（31 )係朝向該隆起面\ 111 )[請參閱第三圖及第四圖，係 098146385 表單編號 A0101 第 5 頁/共 20 頁 0982079073-0 為該些發光件（3)平行指向該隆起面（ηι)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)為申心分別形成一光輻 射場（32)，該光輻射場（32)則投射置該隆起面（U1 )[請參閱第六圖，為避免圖示過於複雜，僅繪出該光學 底板（1)三個側邊之發光件（3)的光轴方向（31)及 光賴射場（32)]; —擴散板（4)，係設置於該光學底 板Ο)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。 使用時，請參閱第五圖及第六圖所示，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❼31)並朝向該隆起 面（111) ’而該光輻射場（32)則投射置該隆起面（ 111) ’藉此’大部份光線將被投射至該光學底板 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^ )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 098146385 緣’不會有僅具有該些發光件（3)之側邊照度較高 表單編號A0101 第6頁/共20頁 而 0982079073-0 1352180 不具有該些發光件（3)之侧邊照度較低現象，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（1)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 膜成型方法於該隆起面（ηι)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)散射出之光線產生 之發光面之亮度更為均勻。 請參閱第九圖所示，係於玆隆起岳（H 11 )設置複數 個V形切槽（π)，使光線投牧鲨該嗟起面（111)時，’I352I80 VI. Description of the Invention: [Technical Field] [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 use of a light guide plate can also scatter a uniform light-emitting surface by the diffuser [Prior Art] [0002] A general backlight module is configured to guide light for proper and multi-angle reflection, and a light guide plate is provided, such as the Republic of China Patent No. M359718 The "sidelight type backlight module" includes a plurality of light emitting diodes, a light guide plate, a brightness enhancement film and a diffusion sheet, each of the light emitting diodes has a light emitting surface, and the light emitting surfaces of the light emitting diodes are all 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, and the light-incident surface of the light guide plate faces the light-emitting surface of 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, a flat region and a light-incident region. Face 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 disadvantages are: 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 effectively reduce the thickness of the whole liquid crystal display, and the light guide plate absorbs light energy and reduces the backlight mode. The light-emitting efficiency of the group and the setting of the light guide plate not only increase the process procedure, but also increase 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, and the capacity of 098146385 is easy to have higher illumination on both sides and lower illumination in the middle. Form No. A0101 Page 3 of 20 0982079073-0 1352180 There is a "Planar light source device and display device using the same device", which is constructed by changing the structure of the bottom optical reflector. The light-emitting structure of the light plate increases the amount of light, but the disadvantage is that: although the light-shielding light source is provided to solve the problem of poor light-emitting efficiency, the side-light source has high illumination on both sides, and the illumination in the middle of the backlight module is lower. In addition, only the t-segment of the optical reflector is designed. It is feared that the light cannot be effectively reflected from the optical reflector to form a multi-angle reflection, and the illumination module is not considered to have uneven illumination. 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 illuminating members have a radiation half power angle of 15 degrees or less. Forming an optical axis direction, and the optical axis directions of the illuminating members are directed toward the ridge surface, and an optical radiation field is respectively formed around the optical axis direction, and the optical radiation field projects the ridge surface; a diffusing plate is disposed in a bulging direction of the ridge portion of the optical bottom plate. The radiant half power angle of the illuminating member is 5 degrees to 15 degrees. The illuminating member is an LED light bar. The light-emitting members are fixed in the reflector, and the diffusion plate is connected to the reflector. 098146385 Form No. A0101 Page 4 of 20 0982079073-0 1352180 Above the optical substrate An optical film is disposed. The raised surface of the raised portion of the optical bottom plate is provided with a plurality of irregular shaped notches. The raised surface of the raised portion of the optical bottom plate is provided with a plurality of v-shaped slots. The present invention has the following advantages 1. The present 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 required to have a high illumination on the side of the light-emitting member, and the illumination is insufficient in the side without the light-emitting member. The optical bottom plate of the invention has a polygonal cone-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 bottom plate, so that the light scattered by the light through the diffusing plate is more uniform. [Embodiment] 0004] 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 on a frame (A). , including: ... an optical bottom plate (1), which is multi-sided: an edge shape, in this embodiment, a hexagonal w is taken as an example, and the optical bottom plate (i) is provided with a ridge portion (11) at least at the central position. , the uplift section (11) a ridge (111); a reflector (2) connected to the periphery of the optical base plate (1); a plurality of illuminating members (3), which may be LED strips, the loops of which are disposed on the optical base plate (1) The periphery is fixed in the reflector (2), and the illuminating members (3) have a radiation half power angle of 15 degrees or less, and have high directivity, and the optimum range is 5 degrees to 15 degrees. The light-emitting members (3) respectively form an optical axis direction (31), and the optical axis directions (31) of the light-emitting members (3) face the raised surface \111) [refer to the third figure and the fourth Fig. 098146385 Form No. A0101 Page 5 of 20 0982079073-0 is a schematic view of the illuminating members (3) pointing in parallel to the ridge face (ηι) or obliquely pointing to the ridge face (111), all of which are oriented The raised surface (111)]' respectively forms an optical radiation field (32) for the optical axis direction (31), and the optical radiation field (32) projects the raised surface (U1) [see In order to avoid the complexity of the illustration, only the optical axis direction (31) and the optical field (32) of the three light-emitting members (3) of the optical bottom plate (1) are drawn; Plate (4), are disposed on the raised bottom direction of the optical plate o) of the raised section (11), and the present embodiment of the diffuser plate (4) is connected to the reflector (2). In use, please refer to the fifth and sixth figures. 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 direction thereof is formed. ❼ 31) and toward the raised surface (111)' and the optical radiation field (32) projects the raised surface (111) 'by which most of the light will be projected onto the raised surface of the optical substrate (11)' Reducing the light directly scattered from the position of the diffusing plate (4) adjacent to the light-emitting members (3), avoiding the illumination of the periphery of the diffusing plate (4) being greater than the illumination of the middle portion of the diffusing plate (4), and additionally, the reflecting cover (2) reflecting the light emitted from the light-emitting members (3) not to the optical substrate, and also increasing the overall luminous efficiency, and the closer the raised portion (11) of the optical substrate is to the middle portion and the diffusion plate ( 4) The closer the distance is, the more the light scattered by the middle portion of the diffusing plate (4) can be increased, and the light-emitting members (3) can be improved on the periphery of the optical substrate (1), resulting in the diffusing plate (4) The phenomenon of illuminance illuminating from the periphery is greater than that of the middle section 'scatters light from the diffuser (4) After the exit, a uniform light-emitting surface can be formed, and since the light-emitting members (3) are disposed on the edge of the optical base plate (1), the edge of the 098146385 does not have a form with a higher side illumination of only the light-emitting members (3). No. A0101, page 6 / total 20 pages and 0982079073-0 1352180 does not have the phenomenon that the side illuminance of the illuminating members (3) is low, and the optical bottom plate (1) is provided at least at the central position (11) And the illuminating member (3) is disposed on the periphery of the optical base plate (1) to enable light to be reflected at the optical base plate (1) at a greater angle, so that the light is scattered through the diffusing plate (4). The light is more even. Referring to FIG. 7, a film forming method such as electroplating, vapor deposition or sputtering may be used to form an optical film (5) on the ridge surface (n), which has a light direction and a light reflection. The effect of the rate 'increasing the light scattered by the diffusing plate (4), and improving the illuminance of the illuminating 〇, as shown in the eighth figure, a plurality of irregularities are set on the raised surface (111) by sandblasting or beading. The shape of the missing groove (12), when the light is projected onto the notch (12) on the raised surface (111), can produce more uniform reflection and scattering, so that the light scattered by the diffusing plate (4) is generated. The brightness of the illuminated surface is more uniform. Please refer to the ninth figure, when a plurality of V-shaped slots (π) are set in Z Loong (H 11 ) to make the light sharks shook the surface (111),
I 其反射方向大都朝向該擴散鏟1^4)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，其側 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] 第一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 098146385 表單編號A0101 第7頁/共20頁 0982079073-0 1352180 視圖。 第三圖係為本發明光軸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。I has a large reflection direction toward the direction of the diffusion shovel 1^4), which can increase the light scattered by the diffusion plate (4) and enhance the illuminance. Referring to the tenth figure, the optical bottom plate (1) is set to an octagonal shape. When the number of sides of the optical bottom 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] The first drawing is a three-dimensional appearance of the construction of the present invention. The second figure is the light-emitting member ring of the present invention is arranged on the periphery of the optical bottom plate. 098146385 Form No. A0101 Page 7 of 20 0982079073-0 1352180 View. The third figure is a cross-sectional view in which the optical axis direction of the present invention is directed in 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。 【主要元件符號說明】 [0006] ( 1 ) 光學底板 （11) 隆起段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. [Main component symbol description] [0006] (1) Optical bottom plate (11) Uplift section
(1 1 1 )隆起面 （12) 缺槽 (31) 光軸方向 (4) 擴散板 (A ) 框架 (13) V形切槽 (2 ) 反射罩 (3 ) 發光件 (32) 光輻射場 (5 ) 光學薄膜 098146385 表單编號A0101 第8頁/共20頁 0982079073-0(1 1 1 ) raised surface (12) notched (31) optical axis direction (4) diffuser (A) frame (13) V-shaped slot (2) reflector (3) illuminating member (32) optical radiation field (5) Optical film 098146385 Form number A0101 Page 8 of 20 0982079073-0