201120344 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係有關於一種無導光板之發光構造，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] 目前一般使用於液晶顯示器之背光模組如中華民國 專利第200825553號「背光模組」，其係包含至少一導 光板、至少一光源設於導光板之一側、一擴散板設於導 光板上方但不接觸導光板以及一混光空間，位於導光板與 擴散板之間，使得從導光板出光;®射出之光線可以在該混 光空間内充分混光後，再由擴.散板考:也背先模'組，然其缺 點在於： 背光模組的設計上不外乎使用導光板做為光源的導 引媒介，但光源經過導光板會消耗能量，導致出光效果 降低，如中小尺寸之側光式背光模組出光效率大多低於 70%，監視器用之背光模組出光效率更只有略高於5〇% 故有美國專利第7350951號「Pianar 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： 雖然底部光學反射板之中段隆起，而能提高由擴散 板中段折射出之光線照度，但藉由該光學反射板反射或 098141127 散射出之光線會有不均勻之現象 表箪編號A0101 望3百/杜17百 導致由該擴散板折射 0982070571-0 201120344 出之光線產生之發光面之亮度不均，且若無加上光學元 件導引光線投射方向，則亦容易產生二側較亮，而中段 較暗之現象。 【發明内容】 [0003] 爰此，有鑑於習知發光構造的缺失，故本發明提供 一種無導光板之發光構造，包括： 一光學底板，係設置至少一隆起段，該隆起段則形 成一隆起面；二光源，係位於鄰接該光學底板之二側， 又該二光源之輻射半功率角為15度以下，而分別形成一 光軸方向，該二光源之光轴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隆起 段之隆起方向上。 上述光源之輻射半功率角為5度至15度。 上述光源係為LED燈條。 上述光學底板上設置一光學薄膜。 上述光學底板隆起段之隆起面係設置複數個不規則 形之缺槽。 上述光學底板隆起段之隆起面係設置複數個V形切槽 〇 上述光學底板二側分別連接一反射罩，該光源固接 於該反射罩内，該擴散板則連接於該反射罩上。 本發明具有下列之優點： 1. 本發明不使用導光板之發光構造可以減輕發光構 造之厚度與重量。201120344 VI. Description of the Invention: [Technical Field] [0001] The present invention relates to a light-emitting structure without a light guide plate, and particularly to a backlight module or other similar light-emitting structure, without using a light guide plate The diffuser scatters a uniform illuminating surface. * [Prior Art] [0002] A backlight module currently used in a liquid crystal display, such as the "backlight module" of the Republic of China Patent No. 200825553, which includes at least one light guide plate, at least one light source is disposed on one side of the light guide plate, A diffuser plate is disposed above the light guide plate but does not contact the light guide plate and a light mixing space, and is located between the light guide plate and the diffuser plate to emit light from the light guide plate; the light emitted by the product can be fully mixed in the light mixing space. Further, the expansion board test: also back to the first model 'group, but its shortcomings are: The design of the backlight module is nothing more than the use of the light guide plate as a guiding medium for the light source, but the light source will consume energy through the light guide plate, resulting in The light-emitting effect is reduced. For example, the light-emitting efficiency of the small-sized side-lit backlight module is mostly less than 70%, and the light-emitting efficiency of the backlight module for the monitor is only slightly higher than 5〇%. Therefore, there is US Patent No. 7305951 "Pianar light source device". And display device using the same device", which changes the structure of the bottom optical reflector to form a light-emitting structure that does not use a light guide plate, and increases the amount of light, but has the disadvantages of: Although the middle portion of the bottom optical reflector is raised to improve the illuminance of the light refracted by the middle portion of the diffuser, the light reflected by the optical reflector or 098141127 may be uneven. Table No. A0101 Hope 3// Du 17 hundred leads to uneven brightness of the light-emitting surface generated by the light emitted by the diffusing plate 0982070571-0 201120344, and if no optical element is used to guide the light projection direction, it is easy to produce two sides brighter, while the middle section is more Dark phenomenon. SUMMARY OF THE INVENTION [0003] In view of the absence of the conventional light-emitting structure, the present invention provides a light-emitting structure without a light guide plate, comprising: an optical bottom plate, at least one raised portion is provided, and the raised portion forms a a ridge surface; the two light sources are located on two sides adjacent to the optical bottom plate, and the two light sources have a radiation half power angle of 15 degrees or less, respectively forming an optical axis direction, and the optical axes of the two light sources are oriented 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; and a diffusion plate is disposed in a bulging direction of the optical floor ridge portion. The radiation source has a radiation half power angle of 5 to 15 degrees. The above light source is an LED light bar. An optical film is disposed on the optical substrate. The embossed surface of the above-mentioned optical floor ridge portion is provided with a plurality of irregular shaped vacancies. The embossing surface of the embossed portion of the optical substrate is provided with a plurality of V-shaped groovings. 二 The two sides of the optical substrate are respectively connected with a reflector, and the light source is fixed in the reflector, and the diffusion plate is connected to the reflector. The present invention has the following advantages: 1. The present invention can reduce the thickness and weight of the light-emitting structure without using the light-emitting structure of the light guide plate.
2. 本發明光學底板之隆起面上設置不規則形缺槽或V 098141127 表單編號A0101 第4頁/共17頁 0982070571-0 201120344 形切槽’而可使光線產生更為均勻之反射及散射，而使 發光面之亮度更為均勻，也能夠提升發光構造之發光輝 度。 3.本發明使用輻射半功率角為15度以下之高指向性 光源’並將光源之光軸方向朝向光學底板隆起段之隆起 面，藉此使大部分光線皆投射至光學底板，增加散射出 擴散板之光線’亦能大量提昇發光輝度。 【實施方式】 [0004] ❹ 請參閱第一圖及第二圖所示，本發明係為一種無導 光板之發光構造，係將其組設於一框架（A)上實施，包 括： 一光學底板（1)，係設置至少一播起灰（1丨），該 隆起段（11 )則形成一隆起面（111 );二反射罩（2)2. The irregular surface of the optical bottom plate of the present invention is provided with irregular vacancies or V 098141127 Form No. A0101 Page 4 / Total 17 pages 0992070571-0 201120344 Shape grooving 'to make the light more uniform reflection and scattering, The brightness of the light-emitting surface is more uniform, and the luminance of the light-emitting structure can also be improved. 3. The present invention uses a high directivity light source with a radiation half power angle of 15 degrees or less and directs the optical axis direction of the light source toward the raised surface of the optical floor ridge section, thereby causing most of the light to be projected onto the optical substrate to increase scattering. The light of the diffuser plate can also greatly increase the brightness of the light. [Embodiment] [0004] Referring to the first and second figures, the present invention is a light-emitting structure without a light guide plate, which is assembled on a frame (A), including: an optical The bottom plate (1) is provided with at least one ash (1 播), the ridge portion (11) forms a ridge surface (111); and the second reflector (2)
G ’係連接於該光學底板（1)之二側；二光源（3)，係 可為LED燈條，其位於鄰接該光學底板（i )之二側，又 該二光源（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，該二光源（3)並 分別形成一光軸方向（31 )，且該二光源（3 )之光軸方 向（31)係朝向該隆起面（1U)[請參閱第三圖及第四 圖，係為該二光源（3 )位於不同高度，但其光軸方向（ 31)皆朝向該隆起面（m)之示意圖]，又以該光軸方 向（31)為中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（丨u)[請參閱第六圖];一 擴散板（4) ’係設置於該光學底板（1)隆起段（11) 之隆起方向上，本實施例該擴散板（4 )則連接於該反射 罩U)上。 098141127 表單編號A0101 第5頁/共17頁 0982070571-0 201120344 使用時，請參閱第五圖及第六圖所示，由於該二光 源（3)之轄射半功率角為15度以下，故該二光源（3) 具有高指向性，其形成之光軸方向（31)並朝向該隆起 面（111) ’而該光輻射場（32)則投射置該隆起面（ Π1)，藉此降低直接由該擴散板（4)鄰近該二光源（3 )位置處散射出之光線，避免該擴散板（4)二側之照度 大於該擴散板（4)中段之照度，另外，該反射罩（2) 可反射該二光源（3)非往該光學底板（1)投射之光線 ，亦能增加整體之發光輝度，而該光學底板（1)之隆起 段（11)越靠近t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 该光源（3)位於該光學底板（1)二側，導致該擴散板 (4 )二側散射出之發光輝度大於中段之現象，使光線由 該擴散板（4)散射出後能形成均勻之發光面。 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（111)設置一光學薄膜（5)， 該光學薄膜（5)具有集光及增加光反射率之功效，提高 由該擴散板（4)散射出之光線，提升發光輝度。 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，係於該隆起面（1 U )設置複數 個V形切槽（13) ’使光線投射至該隆起面時， 其反射方向大都朝向該擴散板（4)方向，而能提高由該 098141127 表單編號A0101 第6頁/共Π頁 0982070571-0 201120344 擴散板（4)散射出之光線，提升發光輝度。 【圖式簡單說明】 [0005] Ο ο [0006] 第一圖係為本發明配合框架實施之立體外觀圖。 第二圖係為本發明配合框架實施之剖視圖。 第三圖係為本發明光軸方向平行指向隆起面之示意 圖。 第四圖係為本發明光軸方向斜向指向隆起面之示意 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光源之光輻射場投射至隆 起面之示意圖。 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。 【主要元件符號說明】 (11) 隆起段 (12) 缺槽 (31) 光轴方向 (4) 擴散板 (A ) 框架 (1) 光學底板 (111) 隆起面 (13) V形切槽 (2) 反射罩 (3 ) 光源 (32) 光輻射場 (5) 光學薄膜 098141127 表單編號A0101 第7頁/共17頁 0982070571-0G ' is connected to the two sides of the optical bottom plate (1); the two light sources (3) can be LED light bars located on two sides adjacent to the optical bottom plate (i), and the radiation of the two light sources (3) The half power angle is 15 degrees or less, and has high directivity' and its optimum range is 5 degrees to 15 degrees. The two light sources (3) respectively form an optical axis direction (31), and the two light sources (3) The optical axis direction (31) is toward the raised surface (1U) [please refer to the third and fourth figures, the two light sources (3) are at different heights, but the optical axis direction (31) is oriented toward the A schematic diagram of the raised surface (m), and an optical radiation field (32) is respectively formed around the optical axis direction (31), and the optical radiation field (32) projects the raised surface (丨u) [see The sixth embodiment is provided with a diffuser plate (4) disposed in the ridge direction of the raised portion (11) of the optical base plate (1). In the embodiment, the diffuser plate (4) is connected to the reflector U). 098141127 Form No. A0101 Page 5 of 17 0982070571-0 201120344 When using, please refer to the fifth and sixth figures. Since the two light sources (3) have a half power angle of 15 degrees or less, The two light sources (3) have high directivity, which forms an optical axis direction (31) toward the raised surface (111)' and the optical radiation field (32) projects the raised surface (?1), thereby reducing direct The illuminating light is scattered by the diffusing plate (4) adjacent to the position of the two light sources (3), so that the illuminance on the two sides of the diffusing plate (4) is greater than the illuminance in the middle of the diffusing plate (4), and the reflecting cover (2) Reflecting the light emitted by the two light sources (3) not to the optical substrate (1), and increasing the overall luminance of the light, and the closer the ridge portion (11) of the optical substrate (1) is near the t segment and the diffusion The closer the distance of the plate (4) is, the light scattered by the middle portion of the diffusing plate (4) can be increased, and the light source (3) can be improved on both sides of the optical bottom plate (1), resulting in the diffusing plate (4) The phenomenon that the illuminance of the two sides is greater than that of the middle section, so that the light can be formed by scattering the diffused plate (4) A uniform light surface. Referring to the seventh figure, an optical film (5) can be disposed on the raised surface (111) by a film forming method such as electroplating, vapor deposition or sputtering, and the optical film (5) has light collecting and increasing light reflectance. The effect is to increase the light scattered by the diffusing plate (4) and enhance the brightness of the light. 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), a more uniform reflection and scattering can be produced to make the brightness of the light-emitting surface generated by the light scattered by the diffusion plate (4) more uniform. Referring to the ninth figure, a plurality of V-shaped slots (13) are disposed on the raised surface (1 U). When the light is projected onto the raised surface, the reflection direction is mostly toward the diffusion plate (4). And can be enhanced by the 098141127 form number A0101 page 6 / total page 0982070571-0 201120344 diffused plate (4) scattered light, enhance the brightness of the light. BRIEF DESCRIPTION OF THE DRAWINGS [0005] The first figure is a three-dimensional appearance of the construction of the present invention. The second drawing is a cross-sectional view of the implementation of the mating frame of the present invention. The third figure is a schematic view in which the direction of the optical axis of the invention is directed parallel to the ridge surface. The fourth figure is a schematic 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 light source projected onto the ridge surface when the invention is used. 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 drawing is a schematic view of the V-shaped slit formed in the ridge of the present invention. [Explanation of main component symbols] (11) Rising section (12) Notch (31) Optical axis direction (4) Diffuser (A) Frame (1) Optical bottom plate (111) Rough surface (13) V-shaped groove (2 Reflector (3) Light source (32) Optical radiation field (5) Optical film 098141127 Form number A0101 Page 7 of 17 0982070571-0