200935371 九、發明說明： .【發明所屬之技術領域】 _ 本發明涉及一種廣告看板，尤其涉及一種可發光得廣 告看板。 【先前技術】 目前，常見之廣告看板通常是採用印刷方式將廣告内 容印刷於帆布或晝布上，並採用發光二極體（Light Emitting Diode，LED)作為光源，一種具有高亮度發光二極體可參見 ❹Michael S. Shur 等人於文獻 Proceedings of the IEEE，Vol. 93, No· 10 (2005 年 10 月）中發表之 “SoHd-State Lighting: Toward Superior Illumination” 一文。惟，這種廣告看板上 之廣告内容為平面型，其主要利用色彩或圖案地設計來形 成視覺層次感，或利用光源之色彩層次來加強視覺效果以 凸顯廣告内容，但這種廣告看板之視覺效果仍不理想。 有鑑於此，有必要提供一種立體效果較好之廣告看板。 q【發明内容】 下面將以實施例說明一種立體效果較好之廣告看板。 一種廣告看板，其包括：一個導光板及至少一個光源， 該導光板包括至少一個入光面及一個出光面，該至少一個 光源與該至少一個入光面相對設置，該至少一個光源發出 得光經由該至少一個入光面射入該導光板並經由該出光面 射出，該出光面設置有廣告圖形，該出光面之位於該廣告 圖形之邊緣處設置有複數個光學微結構。 相對於先前技術，該導光板之出光面設置有廣告圖 200935371 形，且該廣告圖形之邊緣處設置有複數個光學微結 光板内之⑽人射至該光學微結構時更易射$該導光板， 增加了光線經由該光學微結構出射得出光量，所以該出光 面之位於該複數個光學微結構處之亮度高於該廣告圖形内 部之党度，從而藉由該廣告圖形之内部與其邊緣處之亮度 不同造成得對比落差使得該廣告圖形 二又 覺效果。 目u㈣㈣之立體視200935371 IX. Description of the invention: . [Technical field to which the invention pertains] The present invention relates to an advertising billboard, and more particularly to an advertising billboard that can be illuminated. [Prior Art] At present, common advertising billboards usually print the advertisement content on canvas or crepe, and use Light Emitting Diode (LED) as a light source, and a high-brightness light-emitting diode. See "SoHd-State Lighting: Toward Superior Illumination" by Michael S. Shur et al., Proceedings of the IEEE, Vol. 93, No. 10 (October 2005). However, the advertisement content on the advertisement billboard is flat, and the design is mainly designed by using color or pattern to form a visual layering, or the color level of the light source is used to enhance the visual effect to highlight the advertisement content, but the visual of the advertisement billboard The effect is still not ideal. In view of this, it is necessary to provide an advertising billboard with better stereo effect. q [Summary of the Invention] An advertisement billboard with better stereoscopic effect will be described below by way of example. An advertising kanban comprising: a light guide plate and at least one light source, the light guide plate comprising at least one light incident surface and a light exit surface, the at least one light source being disposed opposite to the at least one light incident surface, the at least one light source emitting light The light guide plate is incident on the light guide plate via the light incident surface, and the light exit surface is provided with an advertisement pattern, and the light exit surface is provided at a plurality of optical microstructures at an edge of the advertisement pattern. Compared with the prior art, the light-emitting surface of the light guide plate is provided with an advertisement pattern 200935371, and the edge of the advertisement pattern is provided with a plurality of optical micro-junction plates (10) when the person is shot to the optical microstructure, the light guide plate is more easily shot. Increasing the amount of light emitted by the optical microstructure, so that the brightness of the light-emitting surface at the plurality of optical microstructures is higher than the degree of the interior of the advertising graphic, so that the interior of the advertising graphic and the edge thereof The difference in brightness caused by the contrast difference makes the advertisement graphic second effect. Stereoscopic view of item u (four) (four)
【實施方式】 下面將結合附圖對本發明實施例作 明。[Embodiment] Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.
步地詳細說 請參見圖i ’本發明實施例提供之廣告看板1〇包括一 個導光板11，兩個光源12，及一個反射片13。 該導光板11具有兩個相對之入光面11〇，位於兩個入 一面110之間之出光面m，與出光面m相對之底面112 :於出光面m與底面112之間且與該兩個人光面則相 ©鄰之侧面113。 =該出光面111設置有廣告圖形14,例如文字、圖晝等。 =出光面111的位於廣告圖形14之邊緣處設置有複數個光 :微:構U4。於本實施例中，該複數個光學微結構114沿 只廣Q圖形14之邊緣均勻分佈，且該複數個光學微結構 圍成的圖形與4廣告圖形相—致。該複數個光學微結 I14可為凸起、凹槽或其組合，如圖2及圖3所示，該 凸起及=槽橫截面可為三角形、矩形、半圓形等任意形狀。 於本實知例中，該光學微結構114是橫截面為三角形之v 200935371 型凸起及V型凹槽。該廣告圖形14及該光學微結構114均 - 可與該導光板11為一體成型，即藉由壓模成型或射出成型 .將該廣告圖形14、該光學微結構114及該導光板11做成一 體結構。可理解的是，該廣告圖形14亦可直接貼覆或利用 鐳射雕刻等方式設置於該導光板11之出光面111 ;該光學 微結構114亦可藉由蝕刻地方式形成於該導光板11之出光 面 111。 該兩個光源12分別與該兩個入光面110相對設置，其 〇 發出得光線經由該兩個入光面110射入該導光板11，再經 由該出光面111射出。每個光源12包括一基板121及設置 於該基板121上之複數個發光二極體122,該複數個發光二 極體122設置於靠近該入光面110之一側，其分別與該基 板121上之金屬線路（圖未示）電連接，與該基板121相連之 電源（圖未示）能夠給該複數個發光二極體122提供電能。於 本實施例中，該複數個發光二極體122為線性陣列排佈。 Q 由於該廣告圖形14之邊緣處設置有複數個光學微結構 114，光線經由該出光面111出射時，該複數個光學微結構 114破壞了光線於該出光面111處之全反射條件，則光線入 射至該光學微結構114時更易射出該導光板11，從而增加 了光線經由該光學微結構114出射得出光量，於此可參見 圖4，以光線經由平滑表面出射得光強101為參照，光線經 由凹槽出射得光強102比經由平滑表面出射得光強101約 高一倍，光線經由凸起出射得光強103比經由平滑表面出 射得光強101約高二倍。由此可見，該出光面111之位於 200935371 該複數個光學微結構114處之亮度高於廣告圖形μ内部之 .亮度’從而藉由該廣告圖形14之内部與其邊緣處之亮 '同造成得對比落差使得該廣告圖形u呈現出立體之視^效 果於此…於該導光板1;1之出光面出形成光學微結構叫 之=法較為簡單，成本較低，並且該廣告圖形14之立體效 果是藉由其内部與邊緣處之亮度落差形成的，所以於實 立體效果之同時能夠保證出光之均勻度。 〇 該反射片13與該底面112相對設置，可用於將射至該 底面112之光線反射至出光面m，從而提高光線經由該出/ 光面ill射出之出光率。可理解的是，該導光板^之底面 亦可 < 置有複數個光學微結構，例如凸起或凹槽等，用 以散射射向該底面112之光線’提高光線於該導光板u 之傳輸均勻性。 該廣告看板10亦可包括兩個以上之光源12，其分別與 該入光面110及側面113相對設置’提高該出光面m之 〇冗度。該導光板亦可只包括一個入光面11〇，與其相對之表 面設置反射片或反射膜（圖未示）。當然，該導光板之入光面 亦可與該出光面相對，其侧面均位於該入光面與該出光 之間。 综上所述，本發明確已符合發明專利之要件，遂依法 提出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化，例 如光源為燈管或除發光二極體之外的其他固態發光元件， » 200935371 皆應涵蓋於以下申請專利範圍内 【圖式簡單說明】 I不个| «六j員犯例 ^ 〇韦极I結構示音 圖2係圖！中之光學微結構係橫戴 ^ ° 及凹槽之截面示意圖。 勺—角形之凸起 圖3係圖1中之光學微結構係 之凸起及凹槽之截面示意圖。 '載面為矩形或半圓形 〇 圖4係圖1中之導光板出光面 之光強分佈演示圖。 之平滑處 凸起及凹槽 【主要元件符號說明】 入光面 出光面 底面 侧面 光學微結構 發光二極體 101 102 103 110 111 112 113 114 122 廣告看板 10 導光板 11 光源 12 反射片 13 廣告圖形 14 ξ)基板 121 光線經由平滑表面出射得光強 光線經由凹槽出射得光強 光線經由凸起出射得光強 11Referring to Figure i, the advertising billboard 1 provided in the embodiment of the present invention includes a light guide plate 11, two light sources 12, and a reflection sheet 13. The light guide plate 11 has two opposite light incident surfaces 11 , a light exit surface m between the two entrance surfaces 110 , and a bottom surface 112 opposite to the light exit surface m : between the light exit surface m and the bottom surface 112 and the two The personal glossy side is adjacent to the side 113. The light-emitting surface 111 is provided with an advertisement graphic 14, such as a character, a figure, or the like. The light-emitting surface 111 is provided with a plurality of lights at the edge of the advertisement pattern 14: micro: U4. In this embodiment, the plurality of optical microstructures 114 are evenly distributed along the edge of only the wide Q pattern 14, and the pattern enclosed by the plurality of optical microstructures is consistent with the four advertisement patterns. The plurality of optical micro-junctions I14 may be protrusions, grooves or a combination thereof. As shown in FIGS. 2 and 3, the protrusions and the groove may have any shape such as a triangle, a rectangle, or a semi-circle. In the present embodiment, the optical microstructures 114 are v-shaped and v-shaped grooves of the type 200930371 having a triangular cross section. The advertising pattern 14 and the optical microstructure 114 can be integrally formed with the light guide plate 11, that is, by compression molding or injection molding. The advertisement pattern 14, the optical microstructure 114 and the light guide plate 11 are made. One piece structure. It can be understood that the advertising pattern 14 can also be directly attached or disposed on the light-emitting surface 111 of the light guide plate 11 by laser engraving or the like; the optical microstructure 114 can also be formed on the light guide plate 11 by etching. Light exit surface 111. The two light sources 12 are respectively disposed opposite to the two light incident surfaces 110, and the light emitted by the light is incident on the light guide plate 11 through the two light incident surfaces 110, and is then emitted through the light exit surface 111. Each of the light sources 12 includes a substrate 121 and a plurality of light emitting diodes 122 disposed on the substrate 121. The plurality of light emitting diodes 122 are disposed on one side of the light incident surface 110, respectively, and the substrate 121 A metal line (not shown) is electrically connected, and a power source (not shown) connected to the substrate 121 can supply power to the plurality of LEDs 122. In this embodiment, the plurality of light emitting diodes 122 are arranged in a linear array. Since a plurality of optical microstructures 114 are disposed at the edge of the advertising pattern 14 , when the light is emitted through the light emitting surface 111 , the plurality of optical microstructures 114 destroy the total reflection condition of the light at the light emitting surface 111 , and the light is When the optical microstructure 114 is incident on the optical microstructure 114, the light guide plate 11 is more easily emitted, thereby increasing the amount of light emitted by the optical microstructure 114. Referring to FIG. 4, reference is made to the light intensity 101 emitted by the smooth surface. The light is emitted through the groove so that the light intensity 102 is about twice as high as the light intensity 101 emitted through the smooth surface, and the light intensity 105 emitted by the light is approximately twice as high as the light intensity 101 emitted through the smooth surface. It can be seen that the brightness of the light-emitting surface 111 at the plurality of optical microstructures 114 is higher than the brightness of the interior of the advertisement pattern μ. Thus, the brightness of the interior of the advertisement pattern 14 is brighter than the brightness at the edge thereof. The difference is such that the advertisement graphic u exhibits a stereoscopic effect. The optical surface of the light guide plate 1; 1 is relatively simple, the cost is low, and the three-dimensional effect of the advertisement graphic 14 is obtained. It is formed by the difference in brightness between the inside and the edge, so that the uniformity of the light can be ensured while the solid effect is achieved. The reflection sheet 13 is disposed opposite to the bottom surface 112 and can be used to reflect the light incident on the bottom surface 112 to the light exit surface m, thereby improving the light exiting rate of light emitted through the light exit/light surface ill. It can be understood that the bottom surface of the light guide plate can also be provided with a plurality of optical microstructures, such as protrusions or grooves, for scattering light rays directed toward the bottom surface 112 to increase the light on the light guide plate u. Transmission uniformity. The advertising billboard 10 may also include two or more light sources 12 disposed opposite the light-incident surface 110 and the side surface 113 respectively to increase the redundancy of the light-emitting surface m. The light guide plate may also include only one light incident surface 11〇, and a reflective sheet or a reflective film (not shown) may be disposed on the surface opposite thereto. Of course, the light incident surface of the light guide plate may also be opposite to the light exit surface, and the side surfaces thereof are located between the light incident surface and the light exiting surface. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention, such as a light source or a solid-state light-emitting element other than a light-emitting diode, » 200935371 should be covered by the following patents. [Simple description of the diagram] I do not have a single article | «Six j members commit crimes ^ 〇 Weiji I structure sound map 2 diagram! The optical microstructure of the medium is a cross-section of the ^ ° and the groove. Scoop-angular projections Figure 3 is a schematic cross-sectional view of the projections and grooves of the optical microstructures of Figure 1. 'The carrier surface is rectangular or semi-circular. 〇 Figure 4 is a diagram showing the light intensity distribution of the light-emitting surface of the light guide plate in Figure 1. Smoothing protrusions and grooves [Major component symbol description] Light-emitting surface light-emitting surface bottom side optical micro-structured light-emitting diode 101 102 103 110 111 112 113 114 122 Advertising billboard 10 Light guide plate 11 Light source 12 Reflecting sheet 13 Advertising graphics 14 ξ) Substrate 121 The light is emitted through the smooth surface, and the light is emitted through the groove, and the light is emitted through the convexity.