TWI357521B - Backlight module - Google Patents

Backlight module Download PDF

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Publication number
TWI357521B
TWI357521B TW96137399A TW96137399A TWI357521B TW I357521 B TWI357521 B TW I357521B TW 96137399 A TW96137399 A TW 96137399A TW 96137399 A TW96137399 A TW 96137399A TW I357521 B TWI357521 B TW I357521B
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TW
Taiwan
Prior art keywords
light guide
guide plate
backlight module
frame
limiting portion
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Application number
TW96137399A
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Chinese (zh)
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TW200916892A (en
Inventor
Jian Jhe Yang
Han Ping Kuo
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Au Optronics Corp
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Priority to TW96137399A priority Critical patent/TWI357521B/en
Publication of TW200916892A publication Critical patent/TW200916892A/en
Application granted granted Critical
Publication of TWI357521B publication Critical patent/TWI357521B/en

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Description

1357521 弟96L7399號專利翻書修正本 修正曰期:100年11月8曰 九、發明說明: • 【發明所屬之技術領域】 " 本發明有關於一種背光模組,特別是指背光模組中一 •.種用以承载導光板的膠框及殼體結構設計。 【先前技術】 請參閱第1、2以及3圖,習知背光模組1〇包括導光 12、反射片13以及殼體14,第1圖係為背 先极,、且1G之分解圖,由第!圖中可看出,導光板η之二 耳加 111,該等凸耳111橫向地朝導光板11 外邛凸出,而框架〗2上相對於凸 抵靠部該等抵靠部〗21與凸耳⑴::二: 谷置該4凸耳⑴’故導光板㈣ 1 以及抵靠部⑵達成定位之效 t凸耳⑴ 2射心,並且導編、二 弟3圖為背光模組1〇之側視圖,由於 斤不 構設計之_,若想將f光龜iq之^^組H)結 板11以及框架12之抵靠 广^尽度X缚,則導光 變薄,然而,由於導光板u之凸耳 肉厚D必須同時 故大部份的薄型背光模組 予=不易於變薄, 部⑵底部之肉厚D,若 ^要^小框架12上抵靠 厚Df須減小,在製作過程中可能發底部之肉 之肉厚D太薄而斷裂或是組裝時“°"21底部 耳⑴之重量而斷裂的問題,故習二^導光板11上凸 化的過程中會產生良率不佳的情I月先_10在薄型 5 1357521 第96137399號專利說明書修正本 修正日期:100年11月8日 【發明内容】 本發明提供一種背光模組包括殼體、框架以及導光 板,殼體包括底面,底面具有嵌合孔,框架置於底面上且 具有第一限位部,第一限位部係設置於嵌合孔中,導光板 置於底面上且具有第二限位部,其中第二限位部係設置於 第一限位部上。 應注意的是,背光模組更包括反射片,反射片設置於 導光板與殼體間。 應注意的是,嵌合孔之形狀大小係對應第一限位部設 置。 應注意的是,殼體及框架厚度小於2釐米。 為讓本發明之上述和其他目的、特徵、和優點能更明 顯易懂,下文特舉出較佳實施例,並配合所附圖式,作詳 細說明如下: 【實施方式】 請參閱第4-6圖,第4圖係為背光模組20實施例之 分解圖,背光模組20包括導光板21、框架22、反射片 23以及殼體24,導光板21上包括第二限位部211,而第 二限位部211包括第一凸耳211a以及第二凸耳211b,殼 體24上具有底面241,底面241上設有嵌合孔242a、 242b,而框架22與底面241連接,並且框架22上設有抵 靠部221a、221b以及第一限位部222a、222b(請參閱第5 及7圖),第一限位部222a之位置以及形狀大小與嵌合孔 242a相對應,於本實施例中,第一限位部222a與嵌合孔 242a之形狀為長方形,而第一限位部222b之位置以及形 1357521 ' 第96137399號專利說明書修正本 修正日期:100年11月8曰 狀大小與嵌合孔242b相對應,並且於本實施例中,第一 • 限位部222b與嵌合孔242b之形狀為五邊形,第一限位部 • k 222a、222b由框架22下方朝嵌合孔242a、242b位置向 . 下凸出,第一限位部2 2 2 a、2 2 2 b會分別被塞入截合孔 ' 242a、242b中並且完全填滿嵌合孔242a、242b,第5圖 為導光板之第一凸耳211a與膠框22及殼體24之分解示 意圖,而第6圖為導光板之第一凸耳211a與膠框22及殼 體24組合完成後之剖面圖,請參閱第5、6圖,第一凸耳 211a橫向地朝導光板21外側凸出且搭接在第一限位部 • 222a上方,當導光板21置入框架22時,導光板21上之 第一凸耳211a會卡合在抵靠部221a中,以限制導光板 21與框架22之間的相對位置,而框架22置入於殼體24 時,由抵靠部221a下方凸出的第一限位部222a會將殼體 24上之嵌合孔242a完全填滿彼此嵌合,達成膠框’22與 殼體24定位。 續請參閱第7、8圖,第7圖為導光板之第二凸耳211b 與膠框22及殼體24之分解示意圖,而第8圖為導光板之 • 第二凸耳211b與膠框22及殼體24組合完成後之剖面 圖,請參閱第7、8圖,第二凸耳211b位於導光板21之 角落且搭接在第一限位部222b上方,當導光板21置入框 架22時,導光板21上之第二凸耳211b會卡合在抵靠部 221b中,以限制導光板21與框架22之間的相對位置, 而框架22置入於殼體24時,由抵靠部221b下方凸出的 第一限位部222b會將殼體24上之嵌合孔242b完全填滿 彼此嵌合,達成膠框22與殼體24定位,應注意的是,反 射片23設置於導光板21與殼體24間。 1357521 第96137399號專利說明書修正本 修正日期:100年u月8日 請參閱第4-8圖,本發明背光模組20之框架22下方 包括第一限位部222a、222b,第一限位部222 a、222b 相對於嵌合孔242a、242b之位置以及形狀大小由框架22 下方朝肷合孔242a、242b位置凸出,當背光模組2〇薄型 化,,由於導光板21之第二限位部2U之第一凸耳Mb 及第一凸耳211 b的厚度不易於變薄,故習知薄型背光模 組1〇(請茶閱第1-3圖)都會要求減小框架12上抵靠部 121底部之肉厚D,但框架12上抵靠部121底部之肉^ 能導致在製作過程中因為厚度太薄斷裂或是在級 事5載導光板1L 士凸耳111之重量而斷裂的情 θ ± 戶、施例應用於較薄型的背光模組20上時,特別 9294及框架22厚度小於2釐米的背光模組20,在 婵21a、221b下方增加第一限位部222a、222b (即 靠部121底部之肉厚D),因此 二 ;變溥也可加強第-限位部222a、222b的強度及2 ^防斷裂’故背光模組2Q在 # 事,另外,由於本實施例更在殼中體不以 :ΐ 221: I二2伽,故即使本實施例增加第-限 背光模組2 0厚度二:二if靠部121底部之肉厚D), 可完全完全埴加’因為第一限位部222a、 維持原來的M 皮此喪合於嵌合孔242之中,以 維持框本發明之實施例可提供薄型化且 木以承载力之背光模組20。 雖然本發明已以較伟音 限定本發明,任何孰如上’然其並非用以 神和範圍内,仍可作些’在不脫離本發明之精 護範圍當視後附之申動』飾’因此本發明之保 <甲5月專利範圍所界定者為準。 1357521 4 第96137399號專利說明書修正本 修正日期:100年11月8曰 【圖式簡單說明】 . 第1圖係為習知背光模組之分解示意圖; 第2圖係為習知背光模組之組合示意圖; • · 第3圖係為第2圖之習知背光模組沿A-A剖面線之 • 剖面圖; 第4圖係為本發明背光模組實施例之分解圖; 第5圖為導光板之第一凸耳與膠框及殼體之分解示 意圖; 第6圖為第4圖中導光板之第一凸耳與膠框及殼體組 合完成後沿B-B剖面線之剖面圖; φ 第7圖為導光板之第二凸耳與膠框及殼體之分解示 意圖; 第8圖為第4圖中導光板之第二凸耳與膠框及殼體組 合完成後沿C-C剖面線之剖面圖。 【主要元件符號說明】 習知技術 背光模组〜10 ; 凸耳〜111 ; 抵靠部〜121 ; 殼體〜14 ; 本發明之實施例 背光模组〜20 ; 第二限位部〜211 ; 第二凸耳〜211b ; 抵靠部〜221a、221b 反射片〜23 ; 底面〜241 ; 肉厚〜D。 導光板〜11 ; 框架〜12 ; 反射片〜13 ; 肉厚〜D。 導光板〜21 ; 第一凸耳〜211a ; 框架〜22 ; ;第一限位部〜222a、222b ; 殼體〜24 ; 嵌合孔〜242a、242b ; 91357521 Brother 96L7399 patent flip book revision this revision period: 100 years November 8th, invention description: • [Technical field of invention] " The invention relates to a backlight module, in particular to a backlight module 1. The plastic frame and shell structure design for carrying the light guide plate. [Prior Art] Referring to Figures 1, 2 and 3, the conventional backlight module 1 includes a light guide 12, a reflection sheet 13 and a housing 14. The first figure is a back front pole, and an exploded view of 1G. By the first! It can be seen that the two ears of the light guide plate η are added with 111, and the lugs 111 are laterally protruded toward the outer surface of the light guide plate 11, and the frame portion 2 is opposite to the convex abutting portion. Lug (1)::2: The valley is placed with the 4 lugs (1)', so the light guide plate (4) 1 and the abutting portion (2) achieve the positioning effect t lug (1) 2 shooting center, and the guide, the second brother 3 picture is the backlight module 1 The side view of the 〇 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Since the lug thickness D of the light guide plate u must be at the same time, most of the thin backlight modules are not easy to be thinned, and the thickness of the bottom portion (2) is thicker. If the thickness of the small frame 12 is reduced, the thickness Df must be reduced. Small, during the production process, the meat of the bottom meat may be too thin to break or the "°"21 bottom ear (1) weight breaks during assembly, so the process of convexizing on the light guide plate 11 In the case of a poor yield, the situation is first. _10 in the thin type 5 1357521 Patent Specification No. 96137399. This revision date: November 8th, 100 [Invention] The present invention provides a The optical module includes a housing, a frame and a light guide plate. The housing includes a bottom surface, and the bottom surface has a fitting hole. The frame is disposed on the bottom surface and has a first limiting portion. The first limiting portion is disposed in the fitting hole. The light plate is disposed on the bottom surface and has a second limiting portion, wherein the second limiting portion is disposed on the first limiting portion. It should be noted that the backlight module further includes a reflective sheet, and the reflective sheet is disposed on the light guiding plate and the shell Between the bodies, it should be noted that the shape and size of the fitting holes are corresponding to the first limiting portion. It should be noted that the thickness of the housing and the frame is less than 2 cm. To make the above and other objects, features, and The advantages of the backlight module 20 are described in detail below. For example, the backlight module 20 includes a light guide plate 21, a frame 22, a reflective sheet 23, and a housing 24. The second limiting portion 211 is included on the light guiding plate 21, and the second limiting portion 211 includes a first lug 211a. And a second lug 211b having a bottom surface 241 and a bottom surface thereon 241 is provided with fitting holes 242a, 242b, and the frame 22 is connected to the bottom surface 241, and the frame 22 is provided with abutting portions 221a, 221b and first limiting portions 222a, 222b (see Figures 5 and 7). The position and shape of the first limiting portion 222a correspond to the fitting hole 242a. In the embodiment, the first limiting portion 222a and the fitting hole 242a are rectangular in shape, and the position of the first limiting portion 222b is And the modification of the patent specification No. 96, 137, 399, the date of the modification: the size of the 曰 曰 曰 相对 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 242 The shape is a pentagon, and the first limiting portion k k 222a, 222b protrudes downward from the lower side of the frame 22 toward the fitting holes 242a, 242b, and the first limiting portions 2 2 2 a, 2 2 2 b respectively It is inserted into the intercepting holes ' 242a, 242b and completely fills the fitting holes 242a, 242b. FIG. 5 is an exploded view of the first lug 211a of the light guide plate and the frame 22 and the casing 24, and FIG. For the cross-sectional view of the first lug 211a of the light guide plate combined with the plastic frame 22 and the housing 24, please refer to the fifth and sixth figures, the first convex The ear 211a protrudes laterally toward the outside of the light guide plate 21 and overlaps the first limiting portion 222a. When the light guide plate 21 is placed in the frame 22, the first lug 211a on the light guide plate 21 is engaged with the abutment. In the portion 221a, the relative position between the light guide plate 21 and the frame 22 is restricted, and when the frame 22 is placed in the casing 24, the first limiting portion 222a protruding from the lower portion of the abutting portion 221a will be on the casing 24. The fitting holes 242a are completely filled with each other to achieve the positioning of the frame '22 and the casing 24. Continuing to refer to Figures 7 and 8, Figure 7 is an exploded view of the second lug 211b of the light guide plate and the frame 22 and the housing 24, and Figure 8 is the second lug 211b and the frame of the light guide plate. 22 and FIG. 8 are combined, refer to FIGS. 7 and 8. The second lug 211b is located at a corner of the light guide plate 21 and overlaps the first limiting portion 222b. When the light guide plate 21 is placed in the frame At 2 o'clock, the second lug 211b on the light guide plate 21 is engaged with the abutting portion 221b to restrict the relative position between the light guide plate 21 and the frame 22. When the frame 22 is placed in the casing 24, The first limiting portion 222b protruding from the lower portion of the portion 221b completely fills the fitting holes 242b of the casing 24 to each other, and the positioning of the plastic frame 22 and the casing 24 is achieved. It should be noted that the reflection sheet 23 is disposed. It is between the light guide plate 21 and the casing 24. 1357521 Patent specification No. 96137399, the date of this revision: 100 years, July 8th, please refer to FIG. 4-8. The frame 22 of the backlight module 20 of the present invention includes a first limiting portion 222a, 222b, and a first limiting portion. The position and shape of the 222 a, 222b relative to the fitting holes 242a, 242b protrude from the lower side of the frame 22 toward the merging holes 242a, 242b. When the backlight module 2 is thinned, the second limit of the light guide plate 21 The thickness of the first lug Mb and the first lug 211 b of the seat portion 2U is not easy to be thinned. Therefore, it is required to reduce the thickness of the frame 12 by the conventional thin backlight module 1 (please refer to Figures 1-3). The thickness D of the bottom of the portion 121, but the meat at the bottom of the abutting portion 121 of the frame 12 can cause the thickness to be broken during the manufacturing process due to the thickness being too thin or the weight of the light guide plate 1L of the light guide plate 1 is broken. When the application is applied to the thinner backlight module 20, the backlight module 20 having a thickness of less than 2 cm, particularly 9294 and frame 22, is added to the lower limit portions 222a, 222b below the 婵21a, 221b. (ie, the thickness D of the bottom of the portion 121), so the second; the deformation can also strengthen the strength of the first-limit portions 222a, 222b And 2 ^ anti-fracture ', therefore, the backlight module 2Q is in the # thing, in addition, since this embodiment is more in the shell body is not: 221 221: I two 2 gamma, even if this embodiment adds the first limit backlight module 2 0 thickness 2: 2 if the thickness of the bottom portion 121 is D), can be completely added 'because the first limiting portion 222a, maintaining the original M skin to be lost in the fitting hole 242 to maintain the frame Embodiments of the invention can provide a thinned and wood-bearing backlight module 20. Although the present invention has been limited to the present invention by a more general sound, any of the above is not intended to be used in the context of the present invention, and it is possible to make 'appreciation of the invention without departing from the scope of the invention'. Therefore, the scope of the invention is defined by the scope of the patent of May. 1357521 4 Patent specification No. 96137399 Amendment date of this amendment: 100 years November 8曰 [Simple description of the diagram] Figure 1 is an exploded view of a conventional backlight module; Figure 2 is a conventional backlight module Figure 3 is a cross-sectional view of the conventional backlight module of Figure 2 along the line AA; Figure 4 is an exploded view of the embodiment of the backlight module of the present invention; Figure 5 is a light guide plate The first lug and the plastic frame and the housing are exploded; FIG. 6 is a cross-sectional view of the first lug of the light guide plate in FIG. 4 after the combination of the plastic frame and the shell is completed along the BB section; The figure is an exploded view of the second lug of the light guide plate and the plastic frame and the casing; FIG. 8 is a cross-sectional view of the second lug of the light guide plate in the fourth figure after the combination of the plastic frame and the casing is completed along the CC section line. . [Description of main component symbols] Conventional backlight module ~ 10; lug ~ 111; abutment portion ~ 121; housing ~ 14; embodiment of the present invention backlight module ~ 20; second limit portion ~ 211; Second lug ~ 211b; abutment ~ 221a, 221b reflective sheet ~ 23; bottom surface ~ 241; meat thickness ~ D. Light guide plate ~ 11; frame ~ 12; reflective sheet ~ 13; meat thickness ~ D. Light guide plate ~ 21; first lug ~ 211a; frame ~ 22; ; first limit portion ~ 222a, 222b; housing ~ 24; fitting holes ~ 242a, 242b;

Claims (1)

1357521 修正曰期:100年11月8日 第96137399號專利說明書修正本 十、申請專利範園: 1. 一種背光模組,包括: 一殼體,包括一底面,該底面具有一嵌合孔; 一框架,置於該底面上且具有一第一限位部,誃 限位部係設置於該嵌合孔中;以及 Λ :導光板’置於該底面上且具有一第二限位部, =—限位部抵接該第一限位部並覆蓋該嵌合孔 區域,以防止該第一限位部脫離該嵌合孔。 勺。丨 -乂如/請專利範圍第1項所述之背光模組,其更包括 由該反射片設篁於該導光板與該殼體間。 合孔之形狀大小係對應該第❻組’其中該喪 體及該ΪI;2:圍2 ^項所述之背光模組,其中該殼 向地朝該導光板相凸—凸耳橫 角落上。 Μ苐一凸耳故於該導光板之 6.如申請專利範圍第5 -凸7耳為長=,而該第二凸;这為=組’其中該第 ,部模組,該第 101357521 Amendment of the stipulations: Amendment of the patent specification No. 96137399 of November 8, 100. Patent application: 1. A backlight module comprising: a housing comprising a bottom surface, the bottom surface having a fitting hole; a frame is disposed on the bottom surface and has a first limiting portion, wherein the limiting portion is disposed in the fitting hole; and: a light guide plate is disposed on the bottom surface and has a second limiting portion, = - the limiting portion abuts the first limiting portion and covers the fitting hole region to prevent the first limiting portion from coming off the fitting hole. Spoon. The backlight module of claim 1, further comprising the reflective sheet disposed between the light guide plate and the housing. The shape and size of the hole is corresponding to the backlight module of the third group, wherein the body is the body of the body, and the casing is convex toward the light guide plate. . Μ苐 a lug is in the light guide plate 6. As in the patent application, the fifth convex 7 ear is long = and the second convex; this is = group 'where the first module
TW96137399A 2007-10-05 2007-10-05 Backlight module TWI357521B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI494659B (en) * 2012-11-16 2015-08-01 Au Optronics Corp Back light module and display device using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI494659B (en) * 2012-11-16 2015-08-01 Au Optronics Corp Back light module and display device using the same
US9103958B2 (en) 2012-11-16 2015-08-11 Au Optronics Corp. Back light module and display device using the same

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