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TWM358321U - Edge lighting back light module - Google Patents

Edge lighting back light module Download PDF

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Publication number
TWM358321U
TWM358321U TW98201096U TW98201096U TWM358321U TW M358321 U TWM358321 U TW M358321U TW 98201096 U TW98201096 U TW 98201096U TW 98201096 U TW98201096 U TW 98201096U TW M358321 U TWM358321 U TW M358321U
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TW
Taiwan
Prior art keywords
light
lamp cover
fixing
backlight module
edge
Prior art date
Application number
TW98201096U
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Chinese (zh)
Inventor
hong-lun Xiong
Original Assignee
Top Victory Invest Ltd
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Priority to TW98201096U priority Critical patent/TWM358321U/en
Publication of TWM358321U publication Critical patent/TWM358321U/en

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Description

M358321 五、新型說明: 【新型所屬之技術領域】 本創作是關於一種側光式背光模紐_,特別是關於一種具有散熱設 計的侧光式背光模組。 【先前技術】 近年來’傳統的陰極射線官顯不n (即俗稱的CRT顯示器)已漸 漸地被液晶顯4所取代’主要原因在於液晶顯示㈣職出的輕射 量遠遠小於CRT齡H,且液晶顯的树幾年㈣造成本也顯著地 降低。-般來說’液晶顯示器包括背光模組與液晶面板兩大部分,而 背光模組的主要功用在於提供燈源供液晶顯示器使用。 時下常見的側光式背光模組因為燈源設置於背光模組的側邊,而 成為其最大特色’其優點包括有重量輕、_、_化、低耗電等, 故在平面型的顯示H廣為·的今日,_式背光模組均維持一定的 佔有率。請參閱圖i,@ i所緣示為習知的側光式背光模組爆炸圖, ,侧光式背光模組⑴包括有_反射板(11)、_導光板⑴)、一擴 、(13)增冗膜(14)、兩個燈源(15)、四個固定墊(17)、兩 T⑽H邊框⑽。其中’擴散膜⑼與增亮膜⑼ =列於導光板(12)的出光面(12A)側,反射板(⑴則位於 叔、板(12)出光面(12Α)相異的另—面。燈源(15)位於導光 ⑼的兩個人光面⑽)側,每—燈源⑼由兩侧㈣⑼ 亚安裝於鮮(16)内,燈罩⑽__反射板(11)結 M358321 :::燈罩⑻、反射板⑻'導光板⑽、擴散膜⑼和 二二)安裝固定於邊框(18)之内。當侧光式背光模組⑴工 作時,光線會自燈源(15)射出,一 面(卿直接射人導歧^ 線由導光板(12)的入光 二频光面⑽)射出;另一部份光線射向燈二^ 魏而=進人導光板㈤.反射板(ιι)則是用來將射出導光 ^光後㈣Ϊ線反射’使其進人導光板(12)内,避免光線的浪費。 的出光面(l2A)_,進人擴散膜⑼ 内使先線混合均勻,織再進人增亮膜(14)修正線触向性,藉 此提高側⑽光额⑴的輝度。然㈣知__細刚 會在燈源⑻_峡塾(17)之處_量,但卻未針對所產 生的南熱設計-散熱機構,故熱量不易消散,如此會縮短燈源(⑸ 的使用壽命。 因此’如何在侧光式#賴财設計—散熱的結構,藉以延長燈 源的使用壽命’収本領域具有通常知識者努力的目標。 【新型内容】 本創作之目的在提供—種側光式背光模組,使其具有散熱設計, 能將燈源產生的熱量消散至外界,藉以延長側光式背光模組的使用壽 命。 為達此一目的 光板、至少一燈源 本創作揭露一種侧光式背光模組,包括至少一導 至少兩個固定墊、至少一燈罩、一反射板、一擴 M358321 散膜、兩個邊框。其中,燈源位於導光板之入光面側。兩铜定塾分 別位於燈源的兩端’固㈣上包括有至少—_凸緣。燈罩為一位於 燈源之側邊的金屬結構物,且包括有至少—狀孔,固定墊將燈源的 兩端固定於燈罩的端部之内,藉由將固定凸緣置於固定孔内而使燈 源、燈罩及固定墊結合固定。在燈罩的端部上與固定墊相接之處樓空 至少有-開Π。反射板設置於相對導光板之出光面的另—面,且與: 罩的侧邊連接固定。紐膜位於導光板的出光面側。邊框的端部與燈 罩的端部結合固定’藉由兩個邊框將燈罩、反射板、導光板以及擴散 膜固定。在邊框的端部上設置至少有―第—散熱孔,t該邊框與燈罩 結合時’第-散熱孔與開口相對應,使固定塾表_空氣可透過第一 散熱孔與邊框外側相通。 為達此-目的’本創作揭露另一種侧光式背光模組,包括至少一 導光板、至少-燈源、至少兩個固㈣、至少_燈罩、—反射板、一 讎膜、兩辦框。其巾,燈驗於導光板之人光_。兩個固定墊 分別位於燈源的兩端,固定墊上包括有至少_固定凸緣。燈罩為一位 於燈源之側邊的金屬結構物,且包括有至少一固定孔,固定塾紐源 的兩端固定於燈罩的端部之内,藉由㈣定凸緣置顧定孔内而使燈 源、燈罩及ϋ定墊結合固定。在燈罩_部上與固定墊相接之處延伸 有一導熱塊’使該導熱塊與固定塾緊密相接。反射板設置於相對導光 板出光面的另-面,且與燈罩的側邊連翻定。擴散膜位於導光板的 光面側邊框的端部與燈罩的端部結合固定,藉由兩個邊框將燈罩、 反射板、導光板以及擴散顧定。在邊框的端部上設置至少—第二散 M358321 熱孔’當邊框與燈罩結合時,燈罩或導熱塊表面的空氣可透過第二散 熱孔與邊框外側相通。 如上所述之侧光式背光模組,其中,該導熱塊為一呈彎折形狀之 結構。 如上所述之側光式背光模組,更包括一反射片,該反射片設置於 燈罩内’用以反射燈源所射出的光線;該反射片可沿著燈罩内側壁緊 貼,或者呈圓弧狀地貼於燈罩内側壁上。 如上所述之側光式背光模組,其中’反射片以雙面膠或黏膠方式 黏貼於燈罩内。 如上所述之側光式背光模組,更包括一增亮膜,該增亮膜位於擴 散膜的出光面側。 如上所述之側光式背光模組,其中,燈源為冷陰極螢光燈管。 藉此,當側光式背光模組工作時,固定墊上累積的高熱便可透過 熱對流或者熱傳導效應而將熱量消散於空氣之中。此一具有較佳散熱 的燈罩與邊框結射避免側光式背光模組的工作溫度持齡高,故可 延長燈源及側光式背光模組使用的壽命及維持燈源發光效率。 為使熟悉該項技藝人士瞭解本創作之目的、特徵及功效,茲藉由 下述具體實歸彳’並配合所附之圖式,對本創作詳加說明如後。 【實施方式】 請參關Μ,圖Μ所緣示為本創作第一實施例的側光式背光模 組示意圖,該側光式背光模組(2)包括有一反射板(21)、一導光板 M358321 (22)、一擴散膜(23)、一增亮膜(24)、兩個燈源(25)、四個固定 墊(27)、兩個燈罩(26)以及兩個邊框(28)。如圖2a所示,請同 時參閱其放大g ’兩個燈源(25)位於導級(22)的相對兩入光面 (22B)側,該燈源(25)可為冷陰極螢光燈管。兩個固定墊(^) .分別位於每一燈源(25)的兩端,該固定墊(27)上包括有固定凸緣 -(271)。燈罩(26)為金屬結構物,用以反射燈源(25)所射出的光 線,每一燈罩(26)均位於燈源(25)之側邊,燈罩(26)更包括有 籲_固定孔(261)。固定墊(27)將燈源⑶的兩端固定於燈軍(⑹ 的端部之内,藉由將固定凸緣⑵1)置於固定孔(261)内而使燈源 (25)、燈罩(26)及固定塾⑼結合固定。在燈罩(26)的端部上 與固定墊(27)相接之處摟空有一開口(262),使固定塾⑵)之部 份表面的空氣與燈罩(26)外側相通。反射板(21)設置於相對縣 2 (22)出光面(22A)的另一面側,且與燈罩(26)的側邊連接固 疋反射板(21)可將射出導光板(22)的光線反射使光線再次進 鲁入導光板(22)内。擴散膜(23)位於導光板(22)的出光面(22a) 側。兩個邊框(28)位於導光板(22)相異於燈源(25)的另外兩側 邊,每-邊框(28)的端部與燈罩(26)的端部結合固定,藉由兩個 邊框(28)將燈罩(26)、反射板(21)、導光板(22)、擴散膜(23) 以及增亮膜(24)固定。當然,為了充份糊燈源㈤所射出的光 .線’本領域具有通常知識者可進-步地加罩(26)的反光效果。 -請同時參閱圖3A與圖3B,圖Μ與圖3B分別為本創作第一實施例的 側光式老光_組之燈罩加裝反射㈣放大示意圖與本_第一實施例 M358321 的側光式背光模組之燈罩加褒另一反射片的放大示意圖·如圖从所 =在源(25)與燈罩(26)之間加裝一反射片(29),該反射片⑼ 可用雙面膠或黏膠方式黏貼於燈罩(26)内,用以反射燈源⑵)所 射出的光線,反射片(29)設置於燈罩⑶)内而呈门字型,且沿著 k罩(26)内側壁緊貼。另一反射片⑵,)的裝設方式如圖狃所示, 反射片(29 )為呈u字型之半圓弧狀的結構,貼於鮮(26)内侧壁 上。另外,在邊框(28)的端部上設有一第一散熱孔(281),當該邊 •框(28)與燈罩(26)結合時,該第一散熱孔⑽)會與開口(朗 相對應,使朗㈣⑵)絲的空氣可透過第-賴孔(間與邊 框(28)外側相通。藉此,當側光式背光模組(2)工作時,固定墊ο?) 上累積的高熱便可透過熱對流效應而將熱量消散於空氣之中,避免其 溫度持續升高。 圖2A的實施例乃是利用熱對流的方式將熱量消散,以下實施例 則是同時利用熱傳導和熱對流的方式來將熱量消散。請參閱圖2B,圖 2B所緣示為本創作第二實施例的側光式背光模組之燈軍放大示意 圖’本圖式與圖2A之放大圖的差異乃在於鮮與邊框結構上的變化。 如圖2B所示,請同時參閱圖2A的放大圖,在本圖式中,與圖从相 同之元件在此以相同之標號顯示,並不再贅述其結構與功能。其中, 本圖式输示有-燈罩(26,)以及-邊框(28,),該燈罩(則包括有 —延伸自燈罩⑶,)的導熱塊(263,)以及兩個分別位料熱塊⑽,) -兩側的開口(262,),該邊框(28,)包括有兩個第—散熱孔㈤,)以 及一第二散熱孔(282,)。導熱塊(263,)為燈罩(26,)的一部份,且 M358321 ⑼緊_接。當邊框(28,)與燈罩(%,)結合時,兩 個第-散熱孔(28Γ)分別會與兩個開口⑽)相對應,使開口⑽ 處的空氣可透過第-散熱孔⑽,)與邊框⑵,)外側相通,來達到 熱對流的絲。糾,塊⑽,)會與第二散熱孔⑽,)相對 應,使導熱塊(263,)表面的空氣可透過第二散熱孔⑽,)斑邊框 (28,)外側相通,來達到熱對流的效果。在此,導熱塊⑵3,)的設 纽於增加燈罩(26,)與固錢(27)接觸的表面積,使狀塾⑵) 藉熱傳導效應將更多的熱量傳遞至金屬材質的導熱塊⑽,)與燈罩 (26’)。因為金屬具有快速導熱的特性,固定整⑵)上的熱量會迅 速傳遞至整贿罩(26,),再_麵卻)端部上的第二散熱孔⑽,) 來進行熱對流。因此,固絲(27)上累積的高熱便可透過熱傳導與 熱對流兩個效應猶熱量贿於空氣之中,避免其溫度持續升高。 凊參閱圖2C ’圖2(:崎示為本創作第三實施例賴光式背光模 ,、且之燈罩放大示意圖,本圖式為另—種針對熱傳遞之結構上的變化。 如圖2C所示’請同時參閱圖2Β,在本圖式中,與圖2β相同之元件 在此以相同之標細示,並不再贅述其結構與魏。其巾,本圖式綠 示有-燈罩(26,,)’該燈罩(26,,)包括有—延伸自燈罩(26”)的^ 熱塊(263”)以及兩個分別位於導熱塊(263”)兩側的開口(262,,)。 導熱塊(263,’)呈彎折形狀,且為燈罩(π”)的一部份,並與固定 墊(27)緊密相接。當邊框(28,)與燈罩(26,,)結合時,兩個第— 散熱孔(281’)分別會與兩個開口(262,,)相對應’第二散熱孔(2幻,) 會與—熱塊(263”)相對應,藉此達到熱對流的效果。在此,彎折形 M358321 狀的導熱塊(263 )可比圖2B的導熱塊(263’)更進一步地增加與固 定墊(27)接觸的表面積,使固定墊(27)藉熱傳導效應傳遞更多的 熱量到燈罩(26”)上。 請參閱圖2D,圖2D所繪示為本創作第四實施例的侧光式背光模 組之燈罩放大示意圖,本圖式為又一種針對熱傳遞之結構上的變化。 如圖2D所示,請同時參閱圖2B,在本圖式中,與圖2B相同之元件 '在此以相同之標號顯示’並不再贅述其結構與功能。其中,本圖式繪 示有一燈罩(26’’’)以及一邊框(28,,,),該燈罩(26,,,)包括有一延 伸自燈罩(26’’’)的導熱塊(263”’)以及一位於導熱塊(263,,,)侧邊 的開口(262’”),該邊框(28’”)包括有一第一散熱孔(281,”)以及 一第二散熱孔(282’”)。導熱塊(263’’’)從燈罩(26,,,)的側邊彎折 延伸,並與固定墊(27)緊密相接,導熱塊(263,,,)與燈罩(26,,,) 為一體成型的結構。當邊框(28’”)與燈罩(26,,,)結合時,第一散 熱孔(281”’)會與開口(262,”)相對應,第二散熱孔(282”,)會與 燈罩(26’”)相對應’藉此達到熱對流的效果。在此,從側邊彎折的 導熱塊(263,,,)與圖2B的導熱塊(263,)相比,乃是另一種利用熱 傳導之結構的變化。综上所述,本創作之側光式背光模組因為提供一 具有較佳散熱的燈罩結構,故可延長燈源使用的壽命及維持燈源發光 效率。 雖然本創作已以具體實施例揭露如上,然其所揭露的具體實施例 並非用以限定本創作,而該領域具有通常知識者,在不脫離本創作之 精神和範圍内,當可作各種之更動與潤飾,其所作之更動與潤飾皆屬 M358321 護範圍當視後附之申請專利範圍所界定 於本創作之範4,本創作之保 者為準。 【圖式簡單說明】 圖1所綠示為習知的側光式背光模組爆炸圖。 - 从所繪示為本創作第-實施綱側光式背紐組示意圖。 目2B所綠示為本創作第二實施例的側光式背光模組之燈罩放大 ·.示意圖。 圖2C所繪示為本創作第三實施例的側光式背光模組之燈罩放大 示意圖。 圖2D所繪示為本創作第四實施例的側光式背光模組之燈罩放大 不意圖。 圖3A所繪示為本創作第一實施例的側光式背光模組之燈罩加裝 反射片的放大示意圖。 鲁圖3B所繪示為本創作第一實施例的側光式背光模組之燈罩加裝 另一反射片的放大示意圖。 【主要元件符號說明】 <習知> I :側光式背光模組 12A :出光面 II :反射板 12B :入光面 12 :導光板 13 ··擴散膜 M358321 14 :增亮膜 17 :固定墊 15 :燈源 16 :燈罩 18 :邊框 <本創作> 2:侧光式背光模組 261 :固定孔 21 .反射板 262、262,、262”、262”,:開口 22 :導光板 263’、263”、263’” :導熱塊 22A :出光面 27 :固定墊 22B :入光面 271 :固定凸緣 23 :擴散膜 28、28’、28”,:邊框 24 :增亮膜 281、28Γ、28Γ” :第一散熱孔 25 :燈源 282’、282’” :第二散熱孔 26、26’、26”、26,’’ :燈罩 29、29’ :反射片 12M358321 V. New Description: [New Technology Field] This creation is about a side-lit backlight module, especially for an edge-lit backlight module with heat dissipation design. [Prior Art] In recent years, the 'traditional cathode ray official display n (known as CRT display) has gradually been replaced by liquid crystal display 4' the main reason is that the liquid crystal display (4) is less than the CRT age H And the liquid crystal display tree has been significantly reduced in a few years (four). Generally speaking, the liquid crystal display comprises two parts of a backlight module and a liquid crystal panel, and the main function of the backlight module is to provide a light source for the liquid crystal display. Nowadays, the common edge-lit backlight module has become the biggest feature because the light source is disposed on the side of the backlight module. The advantages include light weight, _, _, low power consumption, etc., so the flat type Today, the H-type backlight module maintains a certain share. Referring to Figure i, @i is shown as a conventional edge-lit backlight module explosion diagram, and the edge-lit backlight module (1) includes a reflection plate (11), a light guide plate (1), an expansion, ( 13) Augmented film (14), two light sources (15), four fixed pads (17), and two T (10) H frames (10). The 'diffusion film (9) and the brightness enhancement film (9) are listed on the light-emitting surface (12A) side of the light guide plate (12), and the reflection plate ((1) is located on the other side of the light-emitting surface (12 Α) of the uncle and the plate (12). The light source (15) is located on the side of the two light surfaces (10) of the light guide (9), and each light source (9) is mounted in the fresh (16) by the two sides (4) (9), and the lampshade (10)__reflector (11) is connected with M358321 ::: The lampshade (8), the reflector (8) 'light guide plate (10), the diffusion film (9) and the second and second) are mounted and fixed within the frame (18). When the edge-lit backlight module (1) is in operation, light is emitted from the light source (15), and one side (the direct-injection guide line is emitted by the light-input two-frequency surface (10) of the light guide plate (12)); The light is directed to the lamp two ^ Wei and = into the light guide plate (5). The reflector (ιι) is used to reflect the light (4) after the light is reflected, so that it enters the light guide plate (12) to avoid light. waste. The light-emitting surface (l2A)_, into the diffusion film (9), allows the first line to be evenly mixed, and the woven fabric is then added to the brightness enhancement film (14) to correct the line contact, thereby increasing the brightness of the side (10) light amount (1). However, (4) know __ 细 刚 will be in the light source (8) _ 塾 塾 (17) _ quantity, but not for the generated South heat design - heat dissipation mechanism, so the heat is not easy to dissipate, so will shorten the light source ((5) The service life is therefore 'how to use the side-light type #赖财设计-heat dissipation structure to extend the service life of the light source'. The field of acquisition has the goal of the ordinary knowledge. [New content] The purpose of this creation is to provide The edge-lit backlight module has a heat-dissipating design, which can dissipate the heat generated by the light source to the outside, thereby prolonging the service life of the edge-lit backlight module. To achieve this purpose, the light board and at least one light source are disclosed. An edge-lit backlight module includes at least one guiding pad, at least one lamp cover, at least one lamp cover, one reflecting plate, one diffusing M358321 film, and two frames, wherein the light source is located on the light incident side of the light guide plate. The copper stators are respectively located at both ends of the light source. The solid (four) includes at least a flange. The lampshade is a metal structure located on the side of the light source, and includes at least a hole, and the fixing pad is used for the light source. Both ends are fixed to the lampshade In the end portion, the light source, the lamp cover and the fixing pad are fixedly fixed by placing the fixing flange in the fixing hole. At the end of the lamp cover, the floor space is connected with the fixing pad at least - opening. The plate is disposed on the other side of the light-emitting surface of the light guide plate, and is fixedly connected to: the side of the cover. The new film is located on the light-emitting surface side of the light guide plate. The end of the frame is fixed with the end of the lamp cover. The frame is fixed to the lampshade, the reflector, the light guide plate and the diffusion film. At least the "first" heat dissipation hole is arranged on the end of the frame, and when the frame is combined with the lamp cover, the first heat dissipation hole corresponds to the opening, so that the fixed surface is fixed. The air can communicate with the outside of the frame through the first heat dissipation hole. To achieve this, the present invention discloses another edge-lit backlight module, including at least one light guide plate, at least a light source, at least two solids (four), at least _ The lampshade, the reflector, the diaphragm, the two frames, the towel, and the light of the light in the light guide plate. The two fixed pads are respectively located at the two ends of the light source, and the fixed pad includes at least a fixed flange. a metal structure located on the side of the light source, And comprising at least one fixing hole, the two ends of the fixed 塾 source are fixed in the end of the lamp cover, and the lamp source, the lamp cover and the fixing pad are fixedly fixed by (4) fixing the flange into the fixed hole. A heat conducting block is disposed on the portion of the portion adjacent to the fixing pad. The heat conducting block is closely connected to the fixing plate. The reflecting plate is disposed on the other side of the light emitting surface of the light guiding plate, and is connected to the side of the lamp cover. The diffusion film is located at the end of the light side frame of the light guide plate and is fixedly coupled with the end of the lamp cover, and the lamp cover, the reflector plate, the light guide plate and the diffusion are fixed by the two frames. At least the second part is disposed on the end of the frame. Disperse M358321 hot hole 'When the frame is combined with the lamp cover, the air on the surface of the lamp cover or the heat conducting block can communicate with the outside of the frame through the second heat dissipation hole. The edge light type backlight module as described above, wherein the heat conduction block is a curved The edge-lit backlight module further includes a reflective sheet disposed in the light cover to reflect light emitted by the light source; the reflective sheet can be tightly along the inner side wall of the light cover Stick, or in an arc Attached to the inner side wall of the lampshade. In the edge-lit backlight module as described above, the reflective sheet is adhered to the lamp cover by double-sided tape or adhesive. The edge-lit backlight module as described above further includes a brightness enhancement film located on the light-emitting surface side of the diffusion film. The edge-lit backlight module as described above, wherein the light source is a cold cathode fluorescent lamp. Thereby, when the edge-lit backlight module operates, the high heat accumulated on the fixed pad can dissipate heat into the air through the effect of heat convection or heat conduction. The lampshade and the frame with better heat dissipation prevent the operating temperature of the edge-lit backlight module from being old, so that the life of the lamp source and the edge-lit backlight module can be prolonged and the luminous efficiency of the lamp source can be maintained. In order to familiarize the person skilled in the art with the purpose, features and effects of the creation, the present application will be explained in detail by the following specific facts and with the accompanying drawings. [Embodiment] Please refer to the schematic diagram of the edge-lit backlight module of the first embodiment of the present invention. The edge-lit backlight module (2) includes a reflector (21) and a guide. Light plate M358321 (22), a diffusion film (23), a brightness enhancement film (24), two light sources (25), four fixing pads (27), two lamp covers (26) and two frames (28) . As shown in Fig. 2a, please also refer to its amplification g 'two light sources (25) on the opposite side of the light guide surface (22B) of the guide (22), the light source (25) can be a cold cathode fluorescent lamp tube. Two fixing pads (^) are respectively located at both ends of each light source (25), and the fixing pad (27) includes a fixing flange - (271). The lampshade (26) is a metal structure for reflecting the light emitted by the light source (25), each of the lampshades (26) is located at a side of the light source (25), and the lampshade (26) further comprises a snap-fixing hole (261). The fixing pad (27) fixes both ends of the light source (3) to the lamp body (in the end of (6), and places the fixing flange (2) 1 in the fixing hole (261) to make the light source (25) and the lamp cover ( 26) and fixed 塾 (9) combined with fixation. An opening (262) is hollowed out at the end of the lamp cover (26) where it contacts the fixing pad (27), so that the air on the surface of the portion of the fixing cymbal (2) is communicated with the outside of the lamp cover (26). The reflector (21) is disposed on the other side of the light-emitting surface (22A) of the county 2 (22), and is connected to the side of the lampshade (26) to fix the light of the light guide plate (22). The reflection causes the light to enter the light guide plate (22) again. The diffusion film (23) is located on the light-emitting surface (22a) side of the light guide plate (22). The two frames (28) are located on the other side edges of the light guide plate (22) different from the light source (25), and the end of each frame (28) is fixedly fixed to the end of the lamp cover (26) by two The bezel (28) fixes the lamp cover (26), the reflection plate (21), the light guide plate (22), the diffusion film (23), and the brightness enhancement film (24). Of course, in order to fill the light source (5), the light emitted by the light source can be further improved by the general knowledge in the art. - Please refer to FIG. 3A and FIG. 3B at the same time. FIG. 3B and FIG. 3B are respectively a schematic view of the reflector of the side-light type old light_group of the first embodiment of the present invention, and a side view of the light beam of the first embodiment M358321. An enlarged view of the lampshade of the backlight module is added to the other reflector. As shown in the figure, a reflection sheet (29) is attached between the source (25) and the lamp cover (26), and the reflection sheet (9) can be double-sided tape. Or adhesively adhered to the lamp cover (26) for reflecting the light emitted by the light source (2)), the reflection sheet (29) is disposed in the lamp cover (3) and has a gate shape, and is along the inner side of the k cover (26) The wall is close to the wall. The other reflection sheet (2), is mounted as shown in Fig. ,, and the reflection sheet (29) has a u-shaped semi-arc shape and is attached to the inner side wall of the fresh (26). In addition, a first heat dissipation hole (281) is disposed at an end of the frame (28). When the edge frame (28) is combined with the lamp cover (26), the first heat dissipation hole (10) is connected to the opening (the horizontal hole) Correspondingly, the air of the lang (4) (2) wire can be transmitted through the first lag hole (intersecting with the outside of the frame (28). Thereby, the high heat accumulated on the fixed pad ο?) when the edge light type backlight module (2) is operated The heat can be dissipated into the air through the heat convection effect to prevent the temperature from rising continuously. The embodiment of Figure 2A is to dissipate heat by means of thermal convection. In the following embodiments, heat transfer and heat convection are utilized simultaneously to dissipate heat. Please refer to FIG. 2B , which is an enlarged view of the lamp army of the edge-lit backlight module of the second embodiment of the present invention. The difference between the figure and the enlarged view of FIG. 2A lies in the change of the structure of the frame and the frame. . As shown in Fig. 2B, the same reference numerals are used to refer to the same elements in the drawings, and the structures and functions thereof will not be described again. Wherein, the figure shows a lampshade (26,) and a frame (28,), the lampshade (including a heat sink block (263) extending from the lampshade (3)), and two heat blocks respectively (10),) - Openings (262,) on both sides, the frame (28,) includes two first heat dissipation holes (five), and a second heat dissipation hole (282). The heat conducting block (263,) is part of the lampshade (26,) and the M358321 (9) is tightly connected. When the frame (28,) is combined with the lamp cover (%,), the two first heat dissipation holes (28Γ) respectively correspond to the two openings (10), so that the air at the opening (10) can pass through the first heat dissipation hole (10), Connected to the outside of the frame (2), to achieve the heat convection. Correction, block (10), corresponding to the second heat dissipation holes (10), respectively, so that the air on the surface of the heat conduction block (263,) can pass through the second heat dissipation hole (10), and the outside of the spot frame (28,) communicates to achieve thermal convection. Effect. Here, the heat conducting block (2) 3,) is arranged to increase the surface area of the lamp cover (26,) in contact with the solid money (27), so that the heat transfer effect (2) transfers more heat to the metal heat conductive block (10) by the heat conduction effect. ) with a lampshade (26'). Because of the fast thermal conductivity of the metal, the heat on the fixed (2)) is quickly transferred to the second vent (10) on the end of the bristles (26), for thermal convection. Therefore, the high heat accumulated on the fixed wire (27) can pass through the two effects of heat conduction and heat convection, and the heat is prevented from continuously rising. 2C FIG. 2 (: shows the third embodiment of the Laiguang type backlight module, and the lamp cover is enlarged, and the figure is another structure change for heat transfer. As shown in FIG. 2C As shown in Fig. 2, in the figure, the same components as those in Fig. 2β are denoted by the same reference numerals, and the structure and Wei are not described again. The towel, the figure shows green-shade (26,,) 'The lampshade (26,,) includes a heat block (263" extending from the lamp cover (26") and two openings (262) respectively located on opposite sides of the heat conducting block (263"). The heat conducting block (263, ') is in a bent shape and is part of the lamp cover (π") and is in close contact with the fixing pad (27). When the frame (28,) and the lamp cover (26, ,) When combined, the two first heat dissipation holes (281') respectively correspond to the two openings (262,,), and the second heat dissipation holes (2 phantoms) correspond to the heat blocks (263), thereby The effect of thermal convection is achieved. Here, the heat-conducting block (263) in the shape of a bent M358321 can be further increased than the heat-conducting block (263') of FIG. 2B. The surface area in contact with the fixing pad (27) causes the fixing pad (27) to transfer more heat to the lamp cover (26") by the heat conduction effect. Referring to FIG. 2D, FIG. 2D illustrates the fourth embodiment of the present invention. An enlarged view of the lampshade of the edge-lit backlight module, this figure is another structural change for heat transfer. As shown in Fig. 2D, please refer to FIG. 2B at the same time, in this figure, the same components as in FIG. 2B 'The same reference numerals are used herein' and the structure and function are not described again. Among them, the figure shows a lampshade (26''') and a frame (28,,), the lampshade (26,,, Included is a thermally conductive block (263"') extending from the lampshade (26''') and an opening (262'") on the side of the thermally conductive block (263,), the bezel (28'") including a first heat dissipation hole (281, ") and a second heat dissipation hole (282'"). The heat conduction block (263''') is bent from the side of the lamp cover (26,,), and is fixed with the fixing pad (27). Tightly connected, the heat conducting block (263,,,) is integrated with the lampshade (26,,,) The structure of the type. When the frame (28'") is combined with the lamp cover (26,,), the first heat dissipation hole (281"') corresponds to the opening (262, "), and the second heat dissipation hole (282", ) corresponding to the lampshade (26'") to thereby achieve the effect of heat convection. Here, the heat conducting block (263,,) bent from the side is compared with the heat conducting block (263,) of FIG. 2B. It is another change in the structure that utilizes heat conduction. In summary, the side-lit backlight module of the present invention can extend the life of the light source and maintain the light-emitting efficiency of the light source because it provides a lamp cover structure with better heat dissipation. Although the present invention has been disclosed in the above specific embodiments, the specific embodiments disclosed are not intended to limit the present invention, and those skilled in the art can make various kinds without departing from the spirit and scope of the present invention. The changes and retouchings are all changed and retouched by M358321. The scope of the patent application is defined in the scope of this creation. The holder of this creation shall prevail. [Simple Description of the Drawings] The green color of Figure 1 is an exploded view of a conventional edge-lit backlight module. - A schematic diagram of the side-lighted back-up group from the first-implementation of the creation. The green color of the item 2B is an enlarged view of the lampshade of the edge-lit backlight module of the second embodiment of the present invention. FIG. 2C is an enlarged schematic view showing the lampshade of the edge-lit backlight module of the third embodiment of the present invention. FIG. 2D is a schematic view showing the lampshade of the edge-lit backlight module of the fourth embodiment of the present invention. FIG. 3A is an enlarged schematic view showing the reflector of the edge-lit backlight module of the first embodiment of the present invention. FIG. 3B is an enlarged schematic view showing the addition of another reflective sheet to the lampshade of the edge-lit backlight module of the first embodiment of the present invention. [Main component symbol description] <General knowledge> I: Sidelight type backlight module 12A: Light-emitting surface II: Reflecting plate 12B: Light-incident surface 12: Light-guiding plate 13 · · Diffusion film M358321 14 : Brightening film 17: Fixing pad 15: light source 16: lamp cover 18: frame <this creation> 2: edge-light type backlight module 261: fixing hole 21. reflecting plate 262, 262, 262", 262", opening 22: guiding Light plate 263', 263", 263'": heat conducting block 22A: light emitting surface 27: fixing pad 22B: light incident surface 271: fixing flange 23: diffusion film 28, 28', 28", frame 24: brightness enhancing film 281, 28Γ, 28Γ": first heat dissipation hole 25: light source 282', 282'": second heat dissipation holes 26, 26', 26", 26, '': lampshade 29, 29': reflection sheet 12

Claims (1)

M358321 六、申請專利範圍: 1.一種側光式背光模組,包括: 至少一導光板; 至少一燈源,位於該導光板之入光面侧; 至少兩個’墊’分驗於該燈源的兩端,制定塾上包 少一固定凸緣; 至少-燈罩’該燈罩為—位於該燈源之側邊的金屬結構物,且包 丨括有至少-固定孔’該固定塾將燈源的兩端固定於該燈罩的端部之 内’藉由將固定凸緣置於固定孔内而使燈源、燈罩及固定塾結合固定, 在燈罩的端部上與固定墊相接之處摟空至少有一開口; 一反射板,该反射板設置於相對於該導光板之出光面的另一面, 且與該燈罩的側邊連接固定; 一擴散膜,位於導光板的出光面側;及 兩個雜,該雜_部與燈罩的端部結合固定,齡兩個邊框 將燈罩、反射板、導光板以及擴散翻定,在邊框的端部上設置至* 有一第一散熱孔; / 其中,當該邊框與鮮結合時,該第—散熱孔與該開口相對應, 使該固定藝表面的空氣可透過該第一散熱孔與邊框外側相通。、 2·—種側光式背光模組,包括: 至少一導光板; 至少一燈源,位於該導光板之入光面側; 至少兩個固定墊’分別位於該燈源的兩端’該固定整上包括有至 13 M358321 少一固定凸緣; 至少-燈罩’該燈罩為—位於贿源之側邊的金屬結構物,且包 括有至少-固定孔,該固定墊將燈源的兩端固定於該燈罩的端部之 内藉由將固疋凸緣置於固定孔内而使燈源、燈罩及固定塾結合固定, 在燈罩的端部上翻定墊她之處延伸有—導熱塊,使該導熱塊與該 固定墊緊密相接; 一反射板,該反射板設置於相對該導光板出光面的另一面,且與 # 該燈罩的側邊連接固定; 一擴散膜,位於導光板的出光面側;及 兩個邊框,該邊框的端部與燈罩的端部結合固定,藉由兩個邊框 將燈罩、反射板、導光板以及擴散膜固定,在邊框的端部上設置至少 一第二散熱孔; 其中,g該邊框與燈罩結合時,該燈罩或該導熱塊表面的空氣可 透過該第二散熱孔與邊框外側相通。 鲁3如申請專利範圍第2項所述之側光式背光模組,其中,該導熱塊為 一呈彎折形狀之結構。 4.如申請專利範圍第丨項至第3項之中任一項所述之側光式背光模 組,更包括一反射片,該反射片設置於該燈罩内,用以反射該燈源所 射出的光線。 -5·如申請專利範圍第4項所述之側光式背光模組,該反射片沿著該燈 罩内側壁緊貼。 6·如申請專利範圍第4項所述之側光式背光模組,該反射片呈圓弧狀 14 M358321 且貼於該燈罩内側壁上。 7.如申請專利範圍第4項所述之側光式背光模組,該反射片以雙面膠 或黏膠方式黏貼於該燈罩内。 如申明專利知圍第丨項至第3項之中任一項所述之側光式背光模 、、且更包括-增亮膜’該增亮膜位於該擴散膜的出光面側。 ☆如巾μ專利乾圍第丨項至第3項之中任—項所述之側光式背光模 、、且,其中,該燈源為冷陰極螢光燈管。M358321 VI. Patent application scope: 1. An edge-lit backlight module comprising: at least one light guide plate; at least one light source located on a light incident side of the light guide plate; at least two 'pads' are inspected by the light At both ends of the source, a fixed flange is formed on the upper package; at least - the lamp cover 'the lamp cover is a metal structure located on the side of the light source, and the package includes at least a fixing hole' The two ends of the source are fixed in the end of the lamp cover. The lamp source, the lamp cover and the fixing jaw are fixedly fixed by placing the fixing flange in the fixing hole, and the end of the lamp cover is connected to the fixing pad. The venting plate has at least one opening; a reflecting plate disposed on the other side of the light emitting surface of the light guiding plate and connected to the side of the lamp cover; a diffusion film located on the light emitting surface side of the light guide plate; Two miscellaneous parts are combined with the end of the lampshade, and the two frames of the age are turned over by the lampshade, the reflector, the light guide plate and the diffusion, and are disposed on the end of the frame to have a first heat dissipation hole; When the border is combined with fresh, the first The vent hole corresponds to the opening, so that the air of the fixing surface can communicate with the outside of the frame through the first heat dissipation hole. And a sidelight type backlight module, comprising: at least one light guide plate; at least one light source located on a light incident side of the light guide plate; at least two fixed pads respectively located at two ends of the light source The fixing unit includes a fixing flange to 13 M358321; at least a lampshade 'the lampshade is a metal structure located on the side of the bribe source, and includes at least a fixing hole, the fixing pad will be the two ends of the light source Fixing in the end of the lamp cover, the lamp source, the lamp cover and the fixing cymbal are fixedly fixed by placing the fixing flange in the fixing hole, and the pad is extended on the end of the lamp cover. The heat conducting block is in close contact with the fixing pad; a reflecting plate is disposed on the other side of the light emitting surface of the light guiding plate, and is connected and fixed to the side of the light cover; a diffusion film is located at the light guiding plate And the two sides of the frame, the end of the frame is fixedly fixed to the end of the lamp cover, and the lampshade, the reflector, the light guide plate and the diffusion film are fixed by two frames, and at least one end is arranged on the end of the frame Second heat dissipation hole; When the frame and the shade g combined, the air in the globe or the thermally conductive surface of the block may be communicated through the second cooling hole and the outer frame. The edge-lit backlight module of claim 2, wherein the heat-conducting block has a bent shape. 4. The edge-lit backlight module of any one of the preceding claims, further comprising a reflective sheet disposed in the shade for reflecting the light source The light that is emitted. The edge-lit backlight module of claim 4, wherein the reflective sheet is in close contact with the inner side wall of the lamp cover. 6. The edge-lit backlight module of claim 4, wherein the reflective sheet has an arc shape 14 M358321 and is attached to the inner side wall of the lamp cover. 7. The edge-lit backlight module of claim 4, wherein the reflective sheet is adhered to the lampshade by double-sided tape or adhesive. An edge-lit backlight module according to any one of the preceding claims, and further comprising a - brightness enhancement film, wherein the brightness enhancement film is located on a light-emitting surface side of the diffusion film. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 1515
TW98201096U 2009-01-20 2009-01-20 Edge lighting back light module TWM358321U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI409541B (en) * 2009-10-15 2013-09-21 Au Optronics Corp Liquid crystal display apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI409541B (en) * 2009-10-15 2013-09-21 Au Optronics Corp Liquid crystal display apparatus

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