1358686 100年 11 B 74 ή 桉IF法few 六、發明說明： 【發明所屬之技術領域】 [0001] 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】 [0002] 目前，常見之廣告看板通常是採用印刷方式將廣告内容 印刷於帆布或畫布上，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Michael S. Shur等人於文獻Proceedings of the IEEE, Vol. 93，No. 1 0 (2005年 10 月）中發 表之 “Solid-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。1358686 100 years 11 B 74 ή 桉 IF method fe y 6. Description of the invention: [Technical field of the invention] [0001] The present invention relates to an advertisement billboard, and more particularly to an illuminable billboard. [Prior Art] [0002] At present, the common advertising billboards usually print the advertisement content on a canvas or a canvas, and use a Light Emitting Diode (LED) as a light source, and a high-brightness light-emitting diode. For a polar body, see "Solid-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.
[0003] 有鑑於此，有必要提供一種立體效果較好之廣告看板。 【發明内容】 [0004] 下面將以實施例說明一種立體效果較好之廣告看板' [0005] 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 發出的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。 097103951 表單编號A0101 第4頁/共15頁 1003436474-0 1358686 • . · ♦ [0006][0003] In view of this, it is necessary to provide an advertising billboard with better stereo effect. [0004] Hereinafter, an advertisement billboard according to an embodiment will be described. [0005] An advertisement billboard includes: a light guide panel and at least one light source, the light guide panel including at least one light incident surface and a light-emitting surface, the at least one light source is disposed opposite to the at least one light-incident surface, and the light emitted by the at least one light source is incident on the light guide plate via the at least one light-incident surface and is emitted through the light-emitting surface, and the light-emitting surface is provided with an advertisement a graphic, the illuminating surface is provided with a plurality of optical microstructures at the edge of the advertising graphic. 097103951 Form No. A0101 Page 4 of 15 1003436474-0 1358686 • . · ♦ [0006]
[0007] [0008] [0009][0008] [0009] [0009]
[0010] 097103951 .100年.il月24日梭正替換頁 相對於先前技術，該導光板之出光面設置有廣告圖形， 且該廣告圖形之邊緣處設置有複數個光學微結構，導光 板内之光線入射至該光學微結構時更易射出該導光板， 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 形内部之亮度，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呈現出較好 之立體視覺效果。 【實施方式】 下面將結合附圖對本發明實施例作進一步地詳細說明。 請參見圖1，本發明實施例提供之廣告看板10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110，位於兩個入光面 110之間之出光面111，與出光面111相對之底面112，位 於出光面111與底面112之間且與該兩個入光面110相鄰 之側面113。 該出光面111設置有廣告圖.形14，例如文字、圖畫等。該 出光面111的位於廣告圖形14之邊緣處設置有複數個光學 微結構114。於本實施例中，，該複數個光學微結構114沿 該廣告圖形14之邊緣均勻分佈，且該複數個光學微結構 114所圍成的圖形與該廣告圖形14相一致。該複數個光學 微結構114可為凸起、凹槽或其組合，如圖2及圖3所示， 該凸起及凹槽橫載面可為三角形、矩形、半圓形等任意 形狀。於本實施例中，該光學微結構114是橫截面為三角 形之V型凸起及V型凹槽。該廣告圖形14及該光學微結構 表單編號A0101 第5頁/共15頁 1003436474-0 1358686 1100年11月24 ά修正_^頁 114均可與該導光板η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u 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u之出光面211 ,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。 [0011] 該兩個光源12分別與該兩個入光面11〇相對設置，其發出 得光線經由該兩個入光面110射入該導光板u，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 擊 基板121上之複數個發光二極體122，該複數個發光二極 體12 2設置於靠近該入光面11 〇之一側，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 〇 [0012] 由於該廣告圖形14之邊緣處設置有複數個光學微結構1 j 4 ’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έ亥光學微結構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 之位於該複數個光學微結構114處之亮度高於廣告圖形14 097103951 表單編號Α0101 第6頁/共15頁 1003436474-0 100年.11月24日俊正替換頁 内部之亮度，從而藉由該廣告圖形14之内部與其邊緣處 之亮度不同造成得對比落差使得該廣告圖形14呈現出立 體之視覺效果。於此，於該導光板11之出光面111形成光 學微結構114之方法較為簡單，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，所以於實現立體效果之同時能夠保證出光之均勻度 〇 t〇〇l3] 1 該反射片13與該底面112相對設置，可用於將射至該底面 U2之光線反射至出光面111，從而提高光線經由該出光 面111射出之出光率。可理解的是，該導光板11之底面 112亦可設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11 中之傳輸均勻性。 [0014] i 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ill之亮 度。該導光板亦可只包括一個入光面110，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，其側面均位於該入光面與該 出光面之間。 t〇〇l5] 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 ，皆應涵蓋於以下申請專利範圍内》 【圖式簡單說明】 表單编號A0101 第7頁/共15頁 1003436474-0 1358686 100年11月24日修正#^頁 [0016] 圖1係本發明實施例之廣告看板之結構示意圖。 [0017] 圖2係圖1中之光學微結構係橫截面為三角形之凸起及凹' 槽之截面示意圖。 [0018] 圖3係圖1中之光學微結構係橫截面為矩形或半圓形之凸 起及凹槽之截面示意圖。 [0019] 圖4係圖1中之導光板出光面之平滑處、凸起及凹槽之光 強分佈演示圖。 [0020] 【主要元件符號說明】 g 廣告看板：10 [0021] 入光面：110 [0022] 導光板：11 [0023] 出光面：111 [0024] 光源：12 [0025] 底面：112 [0026] 反射片：13 [0027] 側面：11 3 [0028] 廣告圖形：14 [0029] 光學微結構：114 [0030] 基板：121 [0031] 發光二極體：122 [0032] 光線經由平滑表面出射得光強：101 097103951 表單编號A0101 第8頁/共15頁 1003436474-0 100年.11月24日修正替換頁 1358686 .[0010] 097103951 .100 years. il on the 24th of the shuttle replacement page relative to the prior art, the light guide surface of the light guide plate is provided with an advertising graphic, and the edge of the advertising graphic is provided with a plurality of optical microstructures, within the light guide plate When the light is incident on the optical microstructure, the light guide plate is more easily emitted, and the light is emitted through the optical microstructure, so that the brightness of the light-emitting surface at the plurality of optical microstructures is higher than the inside of the image. The brightness, so that the contrast between the interior of the advertising graphic and the brightness at the edge thereof causes the advertising graphic to exhibit a better stereoscopic effect. [Embodiment] Hereinafter, embodiments of the present invention will be further described in detail with reference to the accompanying drawings. Referring to FIG. 1, an advertising billboard 10 according to an 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 110, a light exit surface 111 between the two light incident surfaces 110, and a bottom surface 112 opposite to the light exit surface 111, between the light exit surface 111 and the bottom surface 112, and the two The side surface 113 adjacent to the light incident surface 110. The light-emitting surface 111 is provided with an advertisement image 14, such as a character, a picture, or the like. A plurality of optical microstructures 114 are disposed on the edge of the advertising pattern 14 of the light exiting surface 111. In this embodiment, the plurality of optical microstructures 114 are evenly distributed along the edge of the advertising graphic 14, and the graphics enclosed by the plurality of optical microstructures 114 are consistent with the advertising graphic 14. The plurality of optical microstructures 114 may be protrusions, grooves or a combination thereof. As shown in FIG. 2 and FIG. 3, the protrusion and the groove lateral surface may be any shape such as a triangle, a rectangle, a semicircle or the like. In the present embodiment, the optical microstructures 114 are V-shaped protrusions and V-shaped grooves having a triangular cross section. The advertising graphic 14 and the optical microstructured form number A0101 5th page/15 pages 1003436474-0 1358686 November 24, 1100 ά Amendment _^ page 114 can be integrally formed with the light guide plate η, that is, by stamping Forming or injection molding, the advertising graphic 14, the optical microstructure 114 and the light guide plate u are integrated into one structure. It is understood that the advertising graphic 14 can also be directly attached or laser-engraved or the like to be disposed on the light guide plate. The light-emitting surface 211 of the light-emitting surface 211 can be formed on the light-emitting surface 111 of the light guide plate 11 by etching. [0011] The two light sources 12 are respectively disposed opposite to the two light incident surfaces 11〇, and the emitted light is incident on the light guide plate u through the two light incident surfaces 110, and is emitted through the light exit surface 111. Each of the light sources 12 includes a substrate 121 and a plurality of LEDs 122 disposed on the substrate 121. The plurality of LEDs 12 2 are disposed adjacent to one side of the light incident surface 11 and respectively A metal line (not shown) on the substrate 121 is electrically connected to a power source (not shown) connected to the substrate 121 to supply electrical energy to the plurality of LEDs 122. In this embodiment, the plurality of LEDs 122 are arranged in a linear array. [0012] Since a plurality of optical microstructures 1 j 4 ' are disposed at the edge of the advertisement pattern 14 , the light is emitted through the light exit surface 111 . The plurality of optical microstructures 114 destroy the total reflection condition of the light at the light exiting surface 111, and the light is more easily emitted from the light guide plate 11 when it is incident on the optical microstructure 114, thereby adding The optical microstructures 114 are emitted to obtain a quantity of light. Referring to FIG. 4, reference is made to the light intensity 101 emitted by the smooth surface, and the light is emitted through the groove to obtain a light intensity 102 that is about one higher than the light intensity 101 that is emitted through the smooth surface. The light intensity 103 emitted by the protrusion is about twice higher than the light intensity 101 emitted through the smooth surface. Thus, the brightness of the light-emitting surface 111 at the plurality of optical microstructures 114 is higher than that of the advertisement pattern 14 097103951 Form No. Α0101 Page 6 of 15 1003436474-0 100 years. November 24th, the brightness of the interior of the page is replaced by the brightness of the interior of the advertising graphic 14 and its edge. The ad makes the gap 14 graphics showing the visual effects of the stereo. Therefore, the method for forming the optical microstructure 114 on the light-emitting surface 111 of the light guide plate 11 is relatively simple, the cost is low, and the three-dimensional effect of the advertisement pattern 14 is formed by the difference in brightness between the inner portion and the edge portion, so The uniformity of the light emission can be ensured while the stereoscopic effect is achieved. The reflective sheet 13 is disposed opposite to the bottom surface 112 and can be used to reflect the light incident on the bottom surface U2 to the light exit surface 111, thereby improving the light passing through the surface. The light exiting rate of the light exiting surface 111. It can be understood that the bottom surface 112 of the light guide plate 11 can also be provided with a plurality of optical microstructures, such as protrusions or grooves, for scattering light incident on the bottom surface 112 to improve light in the light guide plate 11. Transmission uniformity. [0014] The advertising kanban 10 can also include two or more light sources 12, which are respectively disposed opposite to the light-incident surface 110 and the side surface 113, thereby improving the brightness of the light-emitting surface ill. The light guide plate may also include only one light incident surface 110, 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 exit surface. T〇〇l5] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed 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 shall be covered by the following claims: [Simple Description] Form No. A0101 Page 7 of 15 1003436474-0 1358686 November 24, 2014 Revision #^页 [0016] FIG. 1 is a schematic structural view of an advertisement billboard according to an embodiment of the present invention. 2 is a schematic cross-sectional view of the optical microstructure of FIG. 1 having a triangular cross section and a concave 'groove. 3 is a schematic cross-sectional view showing the optical microstructure of FIG. 1 having a rectangular or semi-circular cross section and a groove. 4 is a diagram showing the light intensity distribution of the smoothing portion, the protrusion and the groove of the light-emitting surface of the light guide plate of FIG. 1. [Main component symbol description] g Advertising billboard: 10 [0021] Light-in surface: 110 [0022] Light guide plate: 11 [0023] Light-emitting surface: 111 [0024] Light source: 12 [0025] Bottom surface: 112 [0026 Reflector: 13 [0027] Side: 11 3 [0028] Ad graphic: 14 [0029] Optical microstructure: 114 [0030] Substrate: 121 [0031] Light-emitting diode: 122 [0032] Light exits through a smooth surface Deguangqiang: 101 097103951 Form No. A0101 Page 8 / Total 15 Page 1003436474-0 100 years. November 24th Amendment Replacement Page 1358686 .
[0033] 光線經由凹槽出射得光強：102 [0034] 光線經由凸起出射得光強：103[0033] Light is emitted through the groove to obtain a light intensity: 102 [0034] Light rays are emitted through the protrusions: 103
097103951 表單編“ A0101 第9頁/共15頁 1003436474-0097103951 Form edited "A0101 Page 9 of 15 1003436474-0