M289204 八、新型說明： 【新型所屬之技術領域】 尤指一種針對該背光 本創作係關於側光式背光模組 模組中之導光板所提出之構造設計 【先前技術】 目前應用於如液晶顯示器中提供背光源的背光模組設 言：：概可區分為側光式及直下式兩大類型，其中，侧光式 月光松組之組成主要使用一冷陰極管作為棒狀光源，及一 5又於彡亥冷陰極管侧i套道_止 ㈣…/ 用以提供冷陰極管發出的 Μ ’反之一側端射入，再透過該導光板對光之折射 光自導光板之出光面均勻散射而m提供液 曰“I不益之面板顯示畫面所需的光源。 _去一，而言’公知之導光板（30)設計概如第五圖所 -者’其-側端為入光端（31)，頂面為出光面（32)， 女面（3 3“數凹凸起列所構成的導光圖案面，前述之 導光板（30)可為厚度相 又相寺的板體，或為入光端（31) 厚度大於相對另端之楔 婁板 其中以後者之楔形導光板 導先效果摩父佳。當前述 光模組中，因該背光板（3 〇)應用於側光式背 向投射該導光板（3 ◦"二冷陰極管（4 G ) I出之光側 鄰近…（31)處!:生在該導光板（30)出光面 ^ 約ι〇_寬亮度降低區段，使 邊緣效應的壳線因對 Γ. π Ί ψ 比放果而更為明顯。此外，該導光板 出光面上 對應於冷陰極管（40對於入光端（31)兩側，因 )一電極端之非有效發光區段，也 3 M289204 會產生亮度降低之暗帶 均勻性。 而會影響該導光板 出光面的亮度 為改善前述的導光板出光面產生亮度降低之問題，有 人即設計出如我國公Μ 585259號「側光型表面光源裝 置、液晶顯不器及導光板」新型專利案所揭示者，有人即 進-步於該側光型導光板之出光面或其背面設置粗面化之 散射_ ’該散射圖案面係由多數個視覺難辨之微小粒 (約8—以下）所構成’前述散射圖案面之形成主要藉由 該導光板成形模具作㈣之處理，使該導光板於其出光面 或背面可-體成形有該粗糙面之構造，以形成該散射圖案 面’藉此’以期光投射至該處散射圖案面，可藉該不規則 凹凸狀的粗糙面使光散射，防止前述暗帶區段亮度之降低 現象。 准則揭導光板利用其設於出光面之散射圖案面設計， 對該亮度降低現象所能提供的改善效果有限，因為：當光 自導光板之入光端射入後，主要藉該導光板底面數凹凸列 2成之導光圖案面，使光得以散射並轉向出光面處。而先 刖導光板於其出光面特定區段產生亮度降低現象之原因， & Μ “八別至導光板中的光散射至該區段的光強度不足所 致’今該導光板於其出光面設粗糙化之散射圖案面，僅對 政射至該出光面之光提供進一步的散射，無法有效地增加 才又射至該亮度降低區段的光強度，對於改善該區段亮度降 低之問題所能提供之增益十分有限，以致該亮度降低區段 形成之暗帶現象仍然可見。 M289204 至於戎導光板背面之 圖案面時，因導先圖案面上再設粗糙化之散射 過姓刻處理，射圖案面係湘其成形模具透 ㈣加工過程中光圖案面係形為凹凸列狀，在模具的 出光之均句度不易=有效地控制其加工量，使該導光板 【新型内容】 創作之主要目的在於提M289204 VIII. New description: [New technical field] Especially for the design of the light guide plate in the backlight module of the backlighting system, the prior art is applied to liquid crystal displays. The backlight module with backlight provided is: It can be divided into two types: side light type and direct type. Among them, the side light type moonlight pine group mainly uses a cold cathode tube as a rod light source, and a 5 In the cold cathode tube side of the 彡海, the i-way _ stop (four).../ is used to provide the Μ of the cold cathode tube. The other side is incident, and the refracted light passing through the light guide plate is evenly distributed from the light guide surface of the light guide plate. Scattering and m provides liquid 曰 "I do not benefit from the panel display screen required light source. _ go one, the known light guide plate (30) design is as shown in the fifth figure - its - side end is the light The end surface (31), the top surface is a light-emitting surface (32), the female surface (33 3" number of concave and convex lines formed by the light guiding pattern surface, the aforementioned light guiding plate (30) can be a thickness of phase and phase of the plate body, Or the thickness of the light entrance end (31) is greater than the thickness of the opposite end of the wedge plate The latter wedge-shaped light guide plate leads to the effect of the father. In the above-mentioned optical module, the backlight plate (3 〇) is applied to the side-light type back projection of the light guide plate (3 ◦" two cold cathode tubes (4 G I light side is adjacent to... (31)!: Born in the light guide surface of the light guide plate (30) ^ about ι〇_ wide brightness reduction section, so that the edge effect of the shell line is due to Γ. π Ί ψ In addition, the light-emitting surface of the light guide plate corresponds to the cold cathode tube (40 for both sides of the light-incident end (31), due to the non-effective light-emitting portion of one electrode end, and also the brightness of the 3 M289204 is reduced. The dark band uniformity affects the brightness of the light-emitting surface of the light guide plate to improve the brightness of the light-emitting surface of the light guide plate. Some people have designed such a side light-type surface light source device and liquid crystal display. In the new patent case disclosed in the "No device and light guide plate", some people step into the illuminating surface of the side light type light guide plate or the back surface thereof to provide roughening scattering _ 'The scattering pattern surface is difficult to distinguish by most of the visual patterns The tiny particles (about 8 - below) constitute the 'scattering pattern surface Forming a process mainly by the light guide plate forming die (4), such that the light guide plate can be formed on the light emitting surface or the back surface thereof to form the rough surface, thereby forming the scattering pattern surface 'by this' to project light to the light At the scattering pattern surface, the irregular concave-like rough surface can be used to scatter light to prevent the brightness of the dark band segment from being lowered. The criterion reveals that the light plate is designed to reduce the brightness by using the scattering pattern surface provided on the light-emitting surface. The improvement effect that the phenomenon can provide is limited, because when the light enters the light end of the light guide plate, the light guide pattern surface is formed by the embossed column 2 of the bottom surface of the light guide plate, so that the light is scattered and turned to the light surface. And the reason why the light guide plate produces a brightness reduction phenomenon in a specific section of the light-emitting surface thereof, & Μ "The light in the eight-to-light guide plate is scattered to the section, and the light intensity is insufficient" The roughened scattering pattern surface of the light-emitting surface provides further scattering only for the light that is ejected to the light-emitting surface, and cannot effectively increase the light intensity of the light-emitting section to improve the area. Reduce the brightness of the problem can provide the gain is very limited, so that the brightness is reduced to form the dark band phenomenon segment is still visible. M289204 As for the pattern surface on the back side of the light guide plate, the surface of the first pattern is further roughened by the scattering of the surname, and the pattern of the pattern is made by the forming mold. (4) The pattern of the light pattern is concave and convex during the processing. The uniformity of the light output in the mold is not easy = effectively control the amount of processing, so that the main purpose of the light guide [new content] creation is to mention
此設計，用U古, 禋側先式導先板，希藉This design uses U Gu, the first side of the first guide, and
Bg 有以解決先前既有之導光板使用時之暗帶問 題以及出光均勾度不佳等缺點。 曰帶問 前揭…本創作所提出之技術方案係令該側 ^ 反係一楔形的板體，該板體包括一入光側面、一 "及導光圖案面，該入光側面位於該楔形板體厚度 =大之:端，該出光面位於板體頂面，且全面形成噴砂二 糙狀之第一散射圖案面，該導光圖案面係位於板體下方， 並為凹凸列所構成’該導光圖案面鄰近該入光側面區段之 凹凸列表面形成噴砂粗糙狀之第二散射圖案面。 本創作以前揭技術方案之設計，將可達成功效是··本 創作之楔形導光板於其出光面全面設置粗糙之散射圖案 面’配合底部之導光圖案面特定區段設置粗糙化散射圖案 面之組合，藉以使自入光側射入之光線，可以經由適當的 反射及散射而均勻地自出光面發出，以改善先前技術之暗 帶現象，此外，本創作形成於其表面上之散射圖案面係以 噴砂手段加工形成的，在加工製造的過程中，較為簡便容 易，且易於控制其品質’而有助於該導光板之成形製造。 5 M289204 【實施方式】Bg has the disadvantages of solving the problem of the dark band when the light guide plate is used in the past and the poor hooking of the light. The technical solution proposed by the present invention is to make the side opposite to a wedge-shaped plate body, the plate body comprising a light-incident side, a " and a light guiding pattern surface, the light-incident side is located at the side The thickness of the wedge plate body is larger: the end surface, the light exiting surface is located on the top surface of the plate body, and the first scattering pattern surface of the sandblasted and two rough shapes is formed integrally, and the light guiding pattern surface is located below the plate body, and is formed by the concave and convex columns. The light guiding pattern surface is adjacent to the concave and convex list surface of the light incident side section to form a second scattering pattern surface of sandblasted rough. The design of the prior art solution of this creation will achieve the effect that the wedge-shaped light guide plate of the present invention has a rough scattering pattern surface on its light-emitting surface and a roughening scattering pattern surface corresponding to a specific section of the light guiding pattern surface at the bottom. The combination of light rays that are incident on the light-injecting side can be uniformly emitted from the light-emitting surface by appropriate reflection and scattering to improve the dark band phenomenon of the prior art, and further, the scattering pattern formed on the surface of the present invention The surface is processed by sand blasting, which is simple and easy to process, and easy to control its quality, which contributes to the forming and manufacturing of the light guide plate. 5 M289204 [Embodiment]
士第圖所示’係揭示本創作側光式導光板之一較 實轭例’由圖面中可以瞭解，該導光板（1 〇)為-楔艰 的板體，該板體上包括-人光側面（1 1卜-出光面（^ 2)及-導光圖案面（14)，其中，該入光側面（“） 位方…亥導光板（丄〇 ) 一側端邊之光滑端面，該出光面（1 2)及導光圖案面（14)分別為該導光板（1〇)上下 之板面’其中位於導光板（1 0)上方的出光面（1 2) 全面形成第一散射圖案面（13)，該第一散射圖案面（1 3 )係利用噴砂手段形成不則規狀噴砂粗糙面，該位於導 光板（1 0 ) 了方的導光圖案面（λ 4 )可為數尖齒列、 弧形凸口Ρ列或波浪狀、· ··等凹凸列構成之圖案面，使 其具有可將光予以散射並導向出光面（12)方向之功用， 該：光圖案面（1 4)鄰近該入光側s ( χ工）之區段設 置第-政射圖案面（15)，第二散射圖案面（15)係 以噴砂手段形成之喷砂粗糙面。 广第二圖所示，前述中，該導光圖案δ (14)尚可 入光側面（1 1 )兩侧之區段設置第三散射圖案面（工 1 :从不二散射圖案面（1 6 )可以喷砂手段形成之噴 /粗钗面，且該第三散射圖案面隨遠離入光侧面而寬度減 小為佳，如第三圖所示者。 一本創作以前揭導光板（1 〇)之構造設計，如第四圖 所不，當應用於背光模組時，係以其入光側面（1丄）鄰 接~陰極官（2 Q )，該冷陰極管（2 0 )外側套設有- 6 M289204 燈罩（2 1 )，使該冷陰極管（2 Ο )發出之光集中射 该導光板（1〇)，另於該導光板（1〇)之導光圖案 (1 4 )外側襞設反射板（圖未示），或再於導光板（ 0 )之出光面（1 2 )外側裝設稜鏡片及光散射片等（ 未不）’構成一側光式背光模組。 向 面 圖As shown in the figure, the system reveals that one of the side light-type light guide plates is a solid yoke. As can be seen from the drawing, the light guide plate (1 〇) is a rigid plate body, and the plate body includes - The side surface of the human light (1 1 - the light-emitting surface (^ 2) and the light-guide pattern surface (14), wherein the light-incident side (") is a smooth end surface of the side edge of the light guide plate (丄〇) The light-emitting surface (12) and the light-guiding pattern surface (14) are respectively the upper and lower surfaces of the light guide plate (1), and the light-emitting surface (1 2) located above the light guide plate (10) is completely formed first. a scattering pattern surface (13), wherein the first scattering pattern surface (13) is formed by a sand blasting method to form a irregular blasting rough surface, and the light guiding pattern surface (λ 4 ) located on the light guiding plate (10) can be The pattern surface formed by the ridge line, the curved ridge line, or the wavy shape, etc., has a function of scattering light and guiding the light surface (12) direction, the light pattern surface (1) a first-instance pattern surface (15) is disposed adjacent to the light-incident side s (completed), and the second scattering pattern surface (15) is sandblasted by sandblasting In the second diagram, in the foregoing, the light guiding pattern δ (14) can be disposed on the sides of the light side surface (1 1 ) to provide a third scattering pattern surface (work 1 : never scattering pattern) The surface (16) can be formed by a sandblasting method, and the third scattering pattern surface preferably decreases in width as it moves away from the light-incident side, as shown in the third figure. The structural design of the light board (1 〇), as shown in the fourth figure, when applied to the backlight module, is adjacent to the cathode side (1 丄) and the cathode cathode (2 Q ), the cold cathode tube (2 0 The outer sleeve is provided with a 6 M289204 lampshade (2 1 ), so that the light emitted by the cold cathode tube (2 Ο ) is concentrated on the light guide plate (1 〇), and the light guide pattern of the light guide plate (1 〇) is 1 4) The outer side is provided with a reflecting plate (not shown), or the outer side of the light emitting surface (1 2) of the light guiding plate (0) is provided with a cymbal piece, a light-scattering piece, etc. (not) constituting one side of the optical backlight Module.
該側光式背光模組應用於液晶顯示器時，則可裝設於 :晶面板背面’於使用日夺，該側光式背光模組係由冷：極 管（2 〇 )提供光源，並使光自該導光板（丄〇 )之入光 側射入’其中藉由該導光板（1〇)底面之導光圖案面（i 4)對光提供反射作用’使光導向至出光面（工方向 散射而出’對液晶面板提供顯示畫面所需的光源，A中因 該導光板之導光㈣面（14)除提供對光 之反射作用’ t進一步利用該導光圖案面（14)上之 糖化第二、第三散射圖案面（15)(16)設計，辦加 投射該導光板（1 G ) 了貝面鄰近人光側面（i i :及 側區段之光強纟，復加以頂面之出光 二Λ .. 丄具有全面 性：粗縫化散射圖案面（"），使光更能均 面（1 2 )散射而出，提供液晶面 出九 亮度。 极…貝不畫面較均勻的光 糙之散射圖案面，配合導光a荦〃、面全面設置粗 導先圖案面特定區段設置粗 射圖案面之…確可有效改善導光板自出光面散射出： 之均勻性’同0夺，本創作之散射圖案面係以喷砂J二 形成的粗糙面’加工製造的過程中，心刻方式= 7 M289204 便容易，且易於控制其品質，故能提 導光板設計。 員更具Λ用性之 【圖式簡單說明】 第一圖係本創作側光式邋 外觀示意圖。_之—較佳實施例之立體 第二圖係本創作側光式導光板之一較佳實施例之平面 示意圖。 第三圖係本創作側光式導光板於導光圖案面上增設第 三散射圖案面之較佳實施例之平面示意圖。 第四圖係本創作側光式導光板之使用狀態參考圖。 第五圖係先前既有側光式背光模組之立體示意圖。 【主要元件符號說明】 (1 0 )導光板 （1 1 )入光側面 (12)出光面 （13)第一散射圖案面 (14)導光圖案面 （15)第二散射圖案面 (2 1 )燈罩 (3 1 )入光側 (3 3 )導光圖案面 (16)第三散射圖案面 (2 0 )冷陰極管 (3 0 )導光板 (3 2 )出光面 (4 0 )冷陰極管 8When the edge-lit backlight module is applied to a liquid crystal display, it can be installed on the back side of the crystal panel, which is provided by a cold: pole tube (2 〇), and Light is incident from the light incident side of the light guide plate (in which the light guide pattern surface (i 4) of the light guide plate (1 〇) provides a reflection effect on the light to direct the light to the light exit surface The direction scatters out the light source required to provide a display screen to the liquid crystal panel, and in A, the light guiding (four) surface (14) of the light guiding plate provides a reflection effect on the light, and further utilizes the light guiding pattern surface (14). The saccharification of the second and third scattering pattern faces (15) (16) is designed to project the light guide plate (1 G ) to the side of the human face adjacent to the human light side (ii: and the side section of the light is strong, and the top surface is added出 Λ Λ Λ . 丄 丄 丄 : : : : : : : : : : : : : : : : : : : : : : 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗 粗Light-transparent scattering pattern surface, with light guide a荦〃, surface comprehensively set the thick guide first pattern surface specific section The rough pattern surface...can effectively improve the light guide plate from the light surface: the uniformity is the same as 0, the scattering pattern surface of the creation is made by the rough surface formed by sandblasting J2. Engraving method = 7 M289204 is easy and easy to control its quality, so it can be used to guide the design of the light board. The staff is more practical. [The simple description of the drawing] The first picture shows the appearance of the side light type of the creation. The second embodiment of the preferred embodiment is a schematic plan view of a preferred embodiment of the light-guided light guide plate of the present invention. The third figure is a third scattering pattern surface added to the light guide pattern surface by the creative side light guide plate. The schematic diagram of the preferred embodiment of the present invention is shown in Fig. 4. The fifth figure is a perspective view of the prior side-lit backlight module. [Main component symbol description] 1 0) light guide plate (1 1 ) light entrance side (12) light exit surface (13) first scattering pattern surface (14) light guide pattern surface (15) second scattering pattern surface (2 1 ) lamp cover (3 1 ) Light side (3 3 ) light guiding pattern surface (16) third scattering pattern surface (2 0 ) Cold cathode tube (3 0 ) Light guide plate (3 2 ) Light exit surface (40) Cold cathode tube 8