TWM249042U - Light-guiding structure - Google Patents
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- TWM249042U TWM249042U TW92222486U TW92222486U TWM249042U TW M249042 U TWM249042 U TW M249042U TW 92222486 U TW92222486 U TW 92222486U TW 92222486 U TW92222486 U TW 92222486U TW M249042 U TWM249042 U TW M249042U
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M249042 四、創作說明(l) 【新型所屬之技術領域】 本創作係關於一種導光結構,特別是一種應用於直下 式背光模組之導光結構。 【先前技術】 一般而言,直下式背光模組係為大型發光顯示器之背 光源,必須滿足輝度高、均度高及寬廣視角等;請參考第 一圖所示,係為習知直下式背光模組1 ,該習知直下式背 光模組1係包括基座1 〇、設於該基座1内之反射元件1 1、抵設於該反射元件1 1之發光元件1 2、及依序設於 該反射元件1 1上方之導光板1 3、擴散板1 4及液晶模 組1 5,其中,該基座1 〇係呈矩形且具有弧狀之内底面 ’該反射元件1 1係貼合該内底面,該發光元件1 2係對 應設於該内底面之中心線且設於該反射元件1 1之上,該 基座1 0之内底面之左右兩側係向上接合於該導光板1 3 之左右兩側邊,該擴散板1 4係設於該導光板1 3之上, 最後係將該液晶模組1 5組合於該擴散板1 4之上,則該 習知直下式背光模組1得以組裝完成。 该習知直下式背光模組1因應該高輝度之考量,該發 光元件1 2 —般係為冷陰極管(CCFL,cold Cathode Fluorescent Lamp );該習知直下式背光模組1之該發光 元件1 2發射之光線,部分係經由該反射元件1 1反射後 往該導光板1 3方向射出,而另一部份則直接往該導光板 1 3方向射出,然而該發光元件1 2正上方所發射之光線M249042 4. Creation Instructions (l) [Technical Field to which the New Type belongs] This creation is about a light guide structure, especially a light guide structure applied to a direct type backlight module. [Previous technology] Generally speaking, direct-type backlight modules are backlight sources for large-scale light-emitting displays, which must meet high brightness, high uniformity, and wide viewing angles; please refer to the first figure, which is a conventional direct-type backlight Module 1, the conventional direct type backlight module 1 includes a base 1 0, a reflective element 1 1 disposed in the base 1, a light emitting element 1 2 abutting against the reflective element 1 2, and sequentially The light guide plate 1 3, the diffuser plate 14 and the liquid crystal module 15 are disposed above the reflective element 11. Among them, the base 10 is rectangular and has an arc-shaped inner bottom surface. The reflective element 1 1 is pasted. Combined with the inner bottom surface, the light-emitting element 12 is correspondingly disposed on the center line of the inner bottom surface and disposed on the reflective element 1 1. The left and right sides of the inner bottom surface of the base 10 are upwardly bonded to the light guide plate. On the left and right sides of 13, the diffuser plate 14 is disposed on the light guide plate 13 and finally the liquid crystal module 15 is combined on the diffuser plate 14. The conventional direct-type backlight Module 1 is assembled. The conventional direct-type backlight module 1 is based on the consideration of high luminance. The light-emitting element 12 is generally a cold cathode tube (CCFL, cold cathode fluorescent lamp). The light-emitting element of the conventional direct-type backlight module 1 Some of the light emitted by 12 is reflected by the reflective element 11 and exits in the direction of the light guide plate 13 while the other part is emitted directly in the direction of the light guide plate 13. However, the light emitting element 12 is directly above Emitted light
M249042M249042
四、創作說明(2) ,其傳遞距離較短且其入射角度較 對應於該發光Μ ! 2之正上方之位置3 部區f而影響該習知直下式背光模組以;度之局 之運:疋接!作人有感上述缺失,乃潛心研究並:合學理 。,如出一種設計合理且有效改善上述缺失之本創作 L祈尘内 本創 發光元件 為了 應用於包 面之直下 間之光均 發光元件 部分光線 件之正上 平面化光 容】 作之主 發射之 達成上 括至少 式背光 勻化模 正上方 經由該 方,俾 線。 要目的,在於提 光線’提高直下 述目的,本創作 一發光元件及鄰 模組;該導光結 組、及凹設於該 之至少一凹槽; 凹槽分散,避免 使提高直下式背 供一種導光結構,可分散 式背光模組之均度。 係提供一種導光結構,係 接於該發光元件下之反射 構係包括設於該發光元件 光均勻化模組上且設於該 藉此,該發光元件發射之 光線局部集中於該發光元 光模組之均度,以提供該 ^ 為了使貴審查委員能更進一步瞭解本創作特徵及技 術内各’清參閱以下有關本創作之詳細說明與附圖,然而 所附圖式僅提供參考與說明用,並非用來對本創作加以限 制0 【實施方式】Fourth, the creation description (2), its transmission distance is short and its incident angle is relatively corresponding to the position 3 above the light emitting M! 2 and affects the conventional direct-type backlight module; Luck: pick up! As a person, I feel the above-mentioned shortcomings. For example, a reasonable design and effective improvement of the above-mentioned missing original creation. The original light emitting element in the dust is used to cover the upper and lower surfaces of the light uniform light emitting element and the light plane of the light emitting element is directly planarized. This is achieved by including at least the backlight homogenizing mold directly above this line. The main purpose is to raise the light, and to improve the following purposes, this article creates a light-emitting element and adjacent modules; the light guide knot group and at least one groove recessed in the groove; the grooves are scattered to avoid improving the direct type back supply A light guide structure, the uniformity of a dispersive backlight module. A light guide structure is provided. A reflection structure connected under the light-emitting element includes a light-homogenizing module provided on the light-emitting element and provided thereon. The light emitted by the light-emitting element is locally concentrated on the light-emitting element light. The average degree of the module to provide the ^ In order to allow your reviewers to better understand the characteristics and techniques of this creation, please refer to the following detailed description and drawings of this creation, but the drawings are provided for reference and explanation only. Use, not to limit this creation 0 [implementation]
M249042 四、創作說明(3) 請參考第二圖所示,本創作係提供一種導光結構3 , 係應用於直下式背光模組2,該直下式背光模組係包括 至少一發光元件2 1及鄰接於該發光元件2 1 了方之反射 面2 〇 ’ 5亥導光結構3係包括·设於該發光元件2 1間上 之光均勻化模組3 0、及凹設於該光均勻化模組3 〇上且 設於該發光元件2 1正上方之至少一凹槽3 1 ;藉此,該 凹槽3 1係具有漸變曲率所構成之圓滑弧面,該發光元件 2 1發射之部分光線經由该凹槽3 ;[分散,避免光線局部 ,中於該發光元件2 1之正上方,俾使提高該直下式背光 模組2之均度,以提供平面化光線。 其中, 管(CCFL, 電極螢光燈 Lamp ),該 度’俾使該 槽3 1折射 請參考 模組3 1之 於該光均勻 之該圓滑弧 折分散。如 1之上表面 sin ^ !-n2 . 係為第二介 該發光元件2 1係為直管型(I Type )冷陰極 C^ld Cathode Fluorescent Lamp )、或外置 官(EEFL, External Electrode Fluorescent 凹槽3 1之長度係對應於該發光元件2 i之長 發光元件2 1正上方發射之光線得以經由該 分散之。 第三及第四圖,該凹槽3 1係設於該光均勻化 ίίΓΪ面之一。如第三圖,該凹槽3 1係設 面i之下表面’藉由具漸變曲率所構成 文艾光線入射之法線,俾使該光線能向外 弟四圖,該凹槽3丄係設於該光均勻化 據司乃耳折射定律(Snell,s Law)、^3. 所2,其中,n 1係為第一介質折射率,η 貝射率,Θ !係為入射角,θ 2係為折射角2, M249042 四、創作說明(4) 隨著折射率 大’是以該 該上表面及 1設於該上 ,以適達到 光結構3係 設於下表面 面,該發光 3 1產生折 其中, 如擴散板, 於下方’而 擾,其光線 裝元件之需 件2 1間之 面0 由该光 光線能 該下表 表面及 最佳之 進一步 ’,藉 元件2 射向兩 該光均 該直下 無側光 均勻化 求,或 導光板 均勻化模 向外偏折 面時,其 該下表面 光偏折狀 包括對應 由該兩凹 1發射之 側分散。 勻化模組 式背光模 式背光模 組3 0 分散。 折射主 時,係 態;或 於該凹 槽3 1 部分光 3 0係 組2係 組需由 可由該擴散板完 進一步包括設置 ’而該凹槽3 1 至空氣變小,折射角變 又因為該凹槽3 1設於 因不盡相同,該凹槽3 可具有不同之圓滑弧面 者’參考第五圖,該導 槽3 1之另一凹槽3 1 分設該上表面及該下表 線可連續經由該兩凹槽 包含至少一光處理層, 因該發光元件2 1設置 側面光導為正面光之困 成即可,並藉此減少組 於該擴散板及該發光元 係設於該導光板之下表M249042 4. Creation instructions (3) Please refer to the second picture. This creation provides a light guide structure 3, which is applied to the direct-type backlight module 2. The direct-type backlight module includes at least one light-emitting element 2 1 And the light-reflecting surface 2 adjacent to the light-emitting element 21 and the light-guiding structure 3 include a light-uniformizing module 30 disposed on the light-emitting element 21 and a light uniformity recessed on the light-emitting element 2 1. At least one groove 3 1 on the light-emitting element 21 and located directly above the light-emitting element 21; thereby, the groove 31 has a smooth arc surface composed of a gradual curvature, and the light-emitting element 21 emits light. Part of the light is dispersed through the groove 3; [to avoid localized light, directly above the light-emitting element 21, so as to increase the uniformity of the direct-type backlight module 2 to provide planar light. Among them, for a tube (CCFL, electrode fluorescent lamp), the degree ′ 俾 makes the groove 31 refract. Please refer to the module 31 for the smooth arc fold dispersion of the light uniformity. Such as 1 on the upper surface sin ^!-N2. The light-emitting element 21 is the second medium. The light-emitting element 21 is a straight-type (I Type) cold cathode C ^ ld Cathode Fluorescent Lamp (EEFL), or an external officer (EEFL, External Electrode Fluorescent). The length of the groove 31 corresponds to the light emitted directly above the long light-emitting element 21 of the light-emitting element 2 i through which the light can be dispersed. In the third and fourth figures, the groove 31 is provided for the light uniformity. ίίΓ 之一 One of the faces. As shown in the third figure, the groove 31 is provided on the lower surface of the face i 'with a normal line formed by the gradual curvature of the Wen Ai ray. The groove 3 丄 is set at the light homogenization according to Snell, s Law, ^ 3. So, where n 1 is the refractive index of the first medium, η emissivity, Θ! Is the angle of incidence, θ 2 is the angle of refraction 2, M249042 IV. Creative Instructions (4) As the refractive index is large, the upper surface and 1 are set on the surface so that the light structure 3 is set on the lower surface. Surface, the light-emitting 31 generates a fold, such as a diffuser plate, which interferes with the bottom, and its light-emitting components require a surface 21 The light and light can be the surface of the lower surface and the best further, by the element 2 to the two of the light should be straight down without side light uniformity, or when the light guide plate uniformization mold outwards deflected surface, the lower surface light The deflection shape includes a dispersion corresponding to the side emitted by the two recesses 1. The homogeneous module type backlight mode and the backlight module 3 0 are dispersed. When refracting the main state, the state; or in the groove 3 1 part of the light 3 0 system group 2 The system needs to be further included by the diffuser, and the groove 3 1 to the air becomes smaller, and the refraction angle becomes smaller. Because the groove 31 is set to be different, the groove 3 can have different smoothness. With reference to the fifth figure, the other groove 3 1 of the guide groove 31 is divided into the upper surface and the lower line, and the two grooves can continuously pass through the two grooves to include at least one light treatment layer, because the light emitting element 2 1 It is only necessary to set the side light guide to the front light, and thereby reduce the grouping of the diffuser plate and the light emitting element under the light guide plate.
5月ί考第六圖所示,係為本創作另一應用示意圖,該 直Γ式二光模組2係具有複數個發光元件2 1來提高輝度 ’ 3導光結構3係對應於該發光元件2 1開設有複數個凹As shown in the sixth picture in May, it is another application diagram for this creation. The straight Γ-type two-light module 2 has a plurality of light-emitting elements 21 to improve the brightness. 3 The light guide structure 3 corresponds to the light emission. Element 2 1 is provided with a plurality of recesses
槽、二依據該複數個發光元件2 1間隔距離之遠近,可 決疋戎複數個凹槽3 ;[設置間隔及該圓滑弧面之大小及直 漸變曲率。 八 本創作係提供該光均勻化模組3 〇及設於該光均勻化 模組3 0之該凹槽3 i所構成之導光結構3,係用該凹槽According to the distance between the plurality of light-emitting elements 21, the grooves and the two can determine the plurality of grooves 3; [Set the interval and the size of the smooth arc surface and the straight curvature. 8. This creation is to provide the light homogenization module 3 0 and the light guide structure 3 formed by the groove 3 i provided in the light homogenization module 30. The groove is used.
第8頁 M249042Page 8 M249042
四、創作說明(5) 3 1可朝向忒光均勻化模組3 〇之兩相對側偏折以分散光 線之特徵,提高該直下式背光模組2之均度;是以,本創 作係不僅止運用於液晶顯示器及液晶電視之背光源,尚可 運用於具有掃描功能之掃描器、印表機、傳真機、影印機 、及多功能事務機(MFP,Multi-Function Peripherals) 等;或進一步應用於廣告用或裝飾用燈箱之光源。 綜上所述’本創作確實可達到預期之目的與功效,惟 上述揭露技術手段僅係本創作之一較佳實施例,任何依本 創作之精神、特徵所為之修飾與變化,皆應包含於如後产 附之申請專利範圍内。Fourth, the creation instructions (5) 3 1 can be deflected towards the opposite sides of the light homogenization module 3 〇 to disperse the light, to improve the uniformity of the direct-type backlight module 2; therefore, this creative department not only Backlight sources for LCD monitors and LCD TVs can be used for scanners, printers, fax machines, photocopiers, and multi-function peripherals (MFPs) with scanning functions; or further Light source for advertising or decorative light boxes. In summary, 'this creation can indeed achieve the intended purpose and effect, but the above disclosed technical means is only a preferred embodiment of this creation. Any modification and change based on the spirit and characteristics of this creation should be included in Such as within the scope of the patent application attached.
第9頁 M249042 第圖係為習知直下式背光模組之剖視示 圖式簡單說明】 意圖; 意圖 ^ Λ , Α θ兀》镇組之剖祝卟恐 =二圖係為本創作直下式背光模組之剖視示 =二圖係為本創作導光結構第一實施例之放大示意圖 篦四圖係為本創作導光結構第二實施例之放大示意圖 ,·及 i f圖係為本創作導光結構第三實施例之放大示意圖 弟/、圖係為本創作> JK _ 々个到TF之另一應用示意圖。 j元件符號說明】 習知直下式背光模組 基座 發光元件 擴散板 本創作導光結構3 光均勻化模組 f下式背光模組 务光元件 0 4 反射元件 導光板 液晶模組 3 0凹槽 2 反射面 2 0Page 9 M249042 The picture is a simple illustration of a sectional view of a conventional direct-lit backlight module] Intent; Intent ^ Λ, Α θ Wu ", the section of the town group = the direct-type of the two-picture series for this creation Sectional view of the backlight module = two pictures are enlarged schematic diagrams of the first embodiment of the light guide structure of the creative work; four pictures are enlarged schematic diagrams of the second embodiment of the light guide structure of the creative work; The enlarged schematic diagram of the third embodiment of the light guide structure is a schematic diagram of this application > JK _ another application diagram to TF. Description of the symbol of j element] Conventional direct-type backlight module base light-emitting element diffuser plate Original light guide structure 3 Light homogenization module f-type backlight module light element 0 4 Reflective element light guide plate LCD module 3 0 concave Slot 2 reflective surface 2 0
第10頁Page 10
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI476487B (en) * | 2009-06-16 | 2015-03-11 | Hon Hai Prec Ind Co Ltd | Backlight module |
TWI831356B (en) * | 2022-09-01 | 2024-02-01 | 香港商冠捷投資有限公司 | Backlight module |
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2003
- 2003-12-23 TW TW92222486U patent/TWM249042U/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI476487B (en) * | 2009-06-16 | 2015-03-11 | Hon Hai Prec Ind Co Ltd | Backlight module |
TWI831356B (en) * | 2022-09-01 | 2024-02-01 | 香港商冠捷投資有限公司 | Backlight module |
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