TWI261138B

TWI261138B - Backlight module

Info

Publication number: TWI261138B
Application number: TW93107589A
Authority: TW
Inventors: Shen-Hong Chou
Original assignee: Au Optronics Corp
Priority date: 2004-03-19
Filing date: 2004-03-19
Publication date: 2006-09-01
Also published as: TW200532309A

Abstract

A backlight module applied in a dual-side display is provided. The dual-side display includes two parallel display panels. A panel gap is formed between the display panels. The backlight module includes two parallel light guide plates (LGPs), a circuit board and at least a light emitting diode (LED). The LGPs are disposed in the panel gap and are parallel to the display panels. An LGP gap is formed between the LGPs. The circuit board is disposed in the LGP gap and position between two parallel sides of the LGPs. The LED is electrically connected to the circuit board and projected outside the lateral surfaces of the LGPs.

Description

1261138 案號 93107589 车月曰修正五、發明說明（1) 【發明所屬之技術領域】本發明是有關於一種背光模組（b a c k 1 i g h t modu 1 e )，且特別是有關於一種配置於一雙面顯示器中且以發光二極體（light emitting diode，LED)為光源的背光模組。【先前技術】請麥照第1圖，其繪示一傳統單向出光之背光模組的剖面圖。此單向出光之背光模組丨〇〇主要包括一導光板 106、二個冷陰極燈管（Col(1 Cathode nu〇rescent1261138 Case No. 93107589 车月曰 Revision 5, Invention Description (1) Technical Field of the Invention The present invention relates to a backlight module (back 1 ight modu 1 e ), and particularly relates to a configuration in a pair A backlight module in a surface display and using a light emitting diode (LED) as a light source. [Prior Art] Please refer to Figure 1 of the photo, which shows a cross-sectional view of a conventional one-way light-emitting backlight module. The one-way light-emitting backlight module 〇〇 mainly comprises a light guide plate 106 and two cold cathode lamps (Col (1 Cathode nu〇rescent)

Lamp，CCFL ) 102、二個燈管反射板（lamp reflect〇r ) 104、一反射板（refiecting plate) 1〇8。由於各個冷陰極燈管1 02外圍係被一燈管反射板丨〇4所環繞，因此各冷陰極燈管1 0 2所提供之光線會被所對應之燈管反射板丨〇 4反射，並經由導光板106之二側面進入導光板1〇6中。導光板 106將導引所接收之光線均勻散射（scatter)至擴散板 (diffusion plate) 110，並經由稜鏡片（prism p 1 ate ) 11 2再次改變光線的路徑，使光線直射至液晶顯示面板（Liquid Crystal Dispiay panei ， LCD Panel) 1 1 4 ’如圖中箭頭所示方向。然而此種方式僅具單面的影像輸出功能。请爹照第2圖’其繪示一傳統雙向出光之背光模組的剖面圖◦此雙向出光之背光模組2〇〇主要包括一導光板 206、二個CCFL 202、二個燈管反射板2〇4、管洞圖案 (hole patterns ) 2 0 8。此雙向出光之背光模組2〇〇的特Lamp, CCFL) 102, two lamp reflectors 105, and a refiecting plate 1〇8. Since the peripheral portions of each of the cold cathode lamps 102 are surrounded by a lamp reflecting plate 丨〇4, the light provided by each of the cold cathode lamps 102 is reflected by the corresponding lamp reflecting plate 丨〇4, and The light guide plate 1〇6 is entered through the two sides of the light guide plate 106. The light guide plate 106 uniformly scatters the received light to a diffusion plate 110, and changes the path of the light again through a prism p 1 ate 11 2 to direct the light to the liquid crystal display panel ( Liquid Crystal Dispiay panei , LCD Panel) 1 1 4 'In the direction of the arrow in the figure. However, this method only has a single-sided image output function. Please refer to FIG. 2, which shows a cross-sectional view of a conventional two-way light-emitting backlight module. The two-way light-emitting backlight module 2〇〇 mainly includes a light guide plate 206, two CCFLs 202, and two lamp reflectors. 2 〇 4, hole patterns (hole patterns) 2 0 8. This two-way light-emitting backlight module

TW1302(050912)CRF.ptc 第6頁 1261138 ______案號 93107589_年月日_____ 五、發明說明（2) 色在於導光板2 0 6的内嵌式管洞圖案2 0 8。冷陰極燈管2 〇 2 之光線會被燈管反射板2 〇 4所反射並入射導光板2 0 6内。導光板206藉由管洞圖案208將光線導引至位於導光板2〇6之正、背面上之擴散板2 1 〇，並經由稜鏡片2 1 2再次改變光線的路徑’隶後光線會經由液晶顯示面板2 1 4而出光，如圖中前頭所示方向。此種方式雖具有雙面的影像輸出光之功能，但和第1 圖一樣的是，二者皆以CCFL為光源。使用CCFL作為光源的缺點在於其燈管内含汞蒸汽，不符未來的環保趨勢。此外，由於CCFL為纖細型之管狀結構，在運送之過程中， CCFL很容易受到外力之撞擊而毁損，反而增加CCFL壽命縮短之風險。另外，若其中一個燈管老化速率較快，則輝度不均的現象會立即顯現，影響背光模組之亮度品質甚鉅二【發明内容】有鑑於此，本發明的目的就是在提供一種背光模組，其以發光二極體作為光源之設計，可以避免產生如傳統上以CCFL為光源時會遇到的汞污染問題，相當符合環保趨勢。此外，發光二極體較CCFL不易受到外力之撞擊而毁損，保障了背光模組中之光源的使用壽命。根據本發明的目的，提出一種背光模組，適用於一雔面顯，器。雙面顯示器具有二彼此平行設置之顯示面板, 且一頒不面板之間形成一面板夾厚空間。背光模組包含二導光板、一電路板及至少一挤朵—士一… 主^ 毛先一極體。二導光板設置於面板夾厚空間中，並盥-顯千而士亚— … --- 一一頒不面板千仃，二導光板之間係TW1302(050912)CRF.ptc Page 6 1261138 ______ Case No. 93107589_年月日日_____ V. Description of invention (2) The color lies in the in-line hole pattern 2 0 8 of the light guide plate 206. The light of the cold cathode lamp 2 〇 2 is reflected by the lamp reflector 2 〇 4 and is incident on the light guide plate 206. The light guide plate 206 guides the light to the diffuser plate 2 1 位于 on the front and back sides of the light guide plate 2〇6 through the hole pattern 208, and changes the path of the light again through the die piece 2 1 2 The liquid crystal display panel 2 1 4 emits light, as shown in the front direction of the figure. Although this method has the function of double-sided image output light, as in the first figure, both use CCFL as the light source. The disadvantage of using CCFL as a light source is that it contains mercury vapor in its lamp tube, which is inconsistent with future environmental trends. In addition, since the CCFL is a slender tubular structure, the CCFL is easily damaged by external force during transportation, which increases the risk of shortening the life of the CCFL. In addition, if one of the lamps has a faster aging rate, the phenomenon of uneven brightness will appear immediately, which affects the brightness quality of the backlight module. [Invention] In view of the above, the object of the present invention is to provide a backlight mode. In the group, the design of the light-emitting diode as the light source can avoid the problem of mercury pollution which is encountered when the CCFL is used as a light source, and is quite in line with the environmental protection trend. In addition, the light-emitting diode is less susceptible to damage from the impact of the external force than the CCFL, thereby ensuring the service life of the light source in the backlight module. According to the purpose of the present invention, a backlight module is proposed, which is suitable for a one-sided display. The double-sided display has two display panels arranged in parallel with each other, and a panel clamping space is formed between the panels. The backlight module comprises two light guide plates, a circuit board and at least one squeezed one-one main body. The two light guide plates are arranged in the thick space of the panel, and the 盥- display 千千士亚—...-- one is not a panel, and the two light guides are between

TW1302(050912)CRF.ptc 第7頁 1261138 ^ -m 93107 咖〜、發明說明（3) 圯成一導光板夾厚空 t，並位於二導光板电性連接於電路板，根據本發明的再雙面顯示器。雙面板且一顯示面板之 ^包含一第一導光板第二電路板、一第一 —導光板及第二導光示面板平行板夾厚空間夾厚空間中彼此平行的修正間。電之彼此且凸設一目的顯示器間係形第二第一導第一電第一電側邊路板爽平行的於二導，提出具有二成一面導光極體及於面板第二導置於導光板一侧邊。發光板之彼此平行的另第一發光二極體一電路板及第二電路導光板及第二導光板於第一導光板及第二為讓本發明之上懂，下文特舉一較佳明如下：發光二板設置光板及路板及第二電路板位於第一弟二電路板位二側邊。及第二發光二夾厚空間光一極體係光板之側面外。一種背光模組，適用於置、頌不面。此背光模電路板、— 二極體。第彼此平行設板夾厚空間板、一第一第二發光夾厚空間中光板之間係路板分別夾導光板及第於第一導光極體分別電 ’並與二顯形成一導光置於導光板一導光板之板及第二導板上，第一發光二極體係侧面外，第二發光二之導光板之另一侧面外。述目的、特徵、和優點能實施例，並配合所附圖式性連接於第凸設於第一極體係凸設更明顯易，作詳細說TW1302(050912)CRF.ptc Page 7 1261138 ^ -m 93107 Coffee ~, invention description (3) 导 into a light guide plate with a thick t, and the two light guide plates are electrically connected to the circuit board, according to the present invention Face display. The double-sided board and the display panel include a first light guide plate, a second circuit board, a first light guide plate and a second light guide plate parallel plate sandwiching space, and a correction space parallel to each other in the thick space. The second first conductive first electric first side side plate is parallel to the second guide, and the second light guide body and the second conductive layer are provided on the panel. On the side of the light guide. The first light-emitting diode-circuit board and the second circuit light-guiding board and the second light-guiding board which are parallel to each other of the light-emitting board are in the first light-guiding board and the second light is understood by the present invention. : The light-emitting two-board light board and the road board and the second circuit board are located on the two sides of the first second circuit board. And the second illuminating two clip thick space light one pole system outside the side of the light board. A backlight module suitable for use in placing or not. This backlight module board, - diode. Parallel to each other, a plate-shaped thick space plate, a first and second illuminating thick space, the circuit board between the light plates respectively sandwiches the light guide plate and the first light guide body respectively electrically and forms a light guide The light guide plate is disposed on the light guide plate and the second guide plate, and the other side of the light guide plate of the second light emitting diode is outside the side of the first light emitting diode system. The purpose, features, and advantages of the embodiments can be applied to the first embodiment of the first pole system in a manner that is more obvious and easy to understand.

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背光模組的剖面圖。在第3A圖中，背光模組3〇〇適用於一 ^面顯不斋3 0 1 ’雙面顯示器3 0 1具有二彼此平行設置之顯不面板3011及顯示面板3〇12，顯示面板3〇11及3〇12之間係形成一面板夾厚（gap )空間3〇2。背光模組3〇〇係配置於此面板夾厚空間3 〇 2中，用以提供雙面顯示器3 〇 1所需要之光線。背光模組3 0 0至少包括一第一導光板3 0 3 1、一第二導光板3 0 3 2、一第一電路板3〇51及至少一第一發光二極體 (1 ight emitting diode，LED ) 3 0 6 1。第一導光板3 0 3 1 及第二導光板3 0 3 2係皆設置於面板夾厚空間3 〇 2中，並與顯示面板3011及顯示面板3012平行，且第一導光板3031及第一導光板3 0 3 2之間係形成一導光板夾厚空間3 〇 4。第一電路板3051係夾置於導光板夾厚空間3〇4内，並位於第一導光板3 0 3 1及第二導光板3 0 3 2之彼此平行的二侧邊。此外，第一導光板3 0 3 1、第二導光板3032及第一電路板30 5 1 係形成一近似U字形結構。第一發光二極體3 〇 6 1係電性連接於第一電路板3051，且凸設於第一導光板3031及第二導光板3 0 3 2之一側面外。此外，背光模組3 0 0更包括一第一弧面反射板3 0 8 1和二反射材料31 01及3102。第一弧面反射板30 8 1係以其凹面面向第一發光二極體3061之方式罩住第一發光二極體3061 和第^一導光板3031及第二導光板3032之一侧面，用以反射第一發光二極體30 6 1之光線至第一導光板3 0 3 1與第二導光板3 0 3 2内。二反射材料3 1 0 1及3 1 0 2係以位於導光板夾厚空間3 0 4中之方式分別設置於第一導光板3 0 3 1及第二導光板A cross-sectional view of the backlight module. In FIG. 3A, the backlight module 3 is suitable for a surface display. The monochrome display 3 0 1 has two display panels 3011 and a display panel 3〇12 which are arranged in parallel with each other, and the display panel 3 Between 11 and 3〇12, a panel gap space 3〇2 is formed. The backlight module 3 is disposed in the panel thick space 3 〇 2 to provide the light required for the double-sided display 3 〇 1. The backlight module 300 includes at least a first light guide plate 3 0 3 1 , a second light guide plate 3 0 3 2, a first circuit board 3〇51, and at least one first light emitting diode (1 ight emitting diode) , LED ) 3 0 6 1. The first light guide plate 3 0 3 1 and the second light guide plate 3 0 3 2 are all disposed in the panel thick space 3 〇 2, and are parallel to the display panel 3011 and the display panel 3012, and the first light guide plate 3031 and the first A light guide plate thickening space 3 〇4 is formed between the light guide plates 3 0 3 2 . The first circuit board 3051 is disposed in the light-shielding plate thickness space 3〇4, and is located on two sides parallel to each other of the first light guide plate 3 0 3 1 and the second light guide plate 3 0 3 2 . In addition, the first light guide plate 3 0 3 1 , the second light guide plate 3032, and the first circuit board 30 5 1 form an approximately U-shaped structure. The first light-emitting diodes 3 〇 6 1 are electrically connected to the first circuit board 3051 and protruded from one side of the first light guide plate 3031 and the second light guide plate 3 0 3 2 . In addition, the backlight module 300 further includes a first curved reflector 3 0 8 1 and two reflective materials 31 01 and 3102. The first curved reflector 30 8 1 covers one side of the first light-emitting diode 3061 and the first light guide plate 3031 and the second light guide plate 3032 with the concave surface facing the first light-emitting diode 3061. The light of the first light-emitting diode 30 6 1 is reflected into the first light guide plate 3 0 3 1 and the second light guide plate 3 0 3 2 . The two reflective materials 3 1 0 1 and 3 1 0 2 are respectively disposed on the first light guide plate 3 0 3 1 and the second light guide plate in a manner of being located in the thickness space 340 of the light guide plate.

TW1302(050912)CRF.ptc 第9頁 1261138 ---_m ^3107589__ 年月曰倏正五、發明說明（5) 3〇3j之表面上’且二反射材料31〇1及31〇2係可黏貼或塗佈於第一導光板3 0 3 1及第二導光板3〇 32之表面上◦ 在本實施例中，背光模組3 0 0更包括一第二電路板 =52、一第二發光二極體3 0 6 2及一第二弧面反射板3 0 82。第一電路板3052係失置於導光板夾厚空間3〇4内，並以與第一電路板3 0 5 1對稱之方式位於第一導光板3〇31及第二導光板3 0 3 2之彼此平行的另二侧邊。第一導光板3 〇 3 1、第二導光板3 0 32、第一電路板30 5 1及第二電路板3〇52係形成一四邊形結構，而且此四邊形結構係圍成一散熱用空腔 (chamber )。散熱用空腔中更可填充一具有高散熱性及高硬度之物質，一方面可以散熱，另一方面可以支撐住第一導光板30 3 1及第二導光板3 0 32。第二發光二極體3 0 6 2係電性連接於第二電路板3 0 5 2，且凸設於第一導光板3 0 3 1及苐一導光板3 0 3 2之另一側面外。第二弧面反射板3 〇 8 2係以其凹面面向第二發光二極體3062之方式罩住第二發光二極體3 0 6 2和第一導光板30 3 1及第二導光板30 32之側面，用以反射第二發光二極體3 0 62之光線至第一導光板3 0 3 1與第二導光板3 0 32内。由於第一弧面反射板3 0 8 1及第二弧面反射板3 0 8 2之凹面具有反射功能，因此第一發光二極體3061及第二發光二極體3 0 6 2所發出之光線可以經由第一弧面反射板3 0 8 1及第二弧面反射板3 0 8 2之反射而從第一導光板3 0 3 1及第二導光板3032之侧面進入第一導光板3031及第二導光板3032中。接著，在二反射材料31 01及3 102的反光作用下，第一導光板3 0 3 1及第二導光板3 0 3 2將導引所接收之光線分別經由第TW1302(050912)CRF.ptc Page 9 1261138 ---_m ^3107589__ Year of the month is five, invention description (5) 3〇3j on the surface 'and two reflective materials 31〇1 and 31〇2 can be pasted Or in the surface of the first light guide plate 3 0 3 1 and the second light guide plate 3〇32. In this embodiment, the backlight module 300 includes a second circuit board=52 and a second light. The diode 3 0 6 2 and a second curved reflector 3 0 82. The first circuit board 3052 is placed in the light-shielding plate thickness space 3〇4, and is located on the first light guide plate 3〇31 and the second light guide plate 3 0 3 2 in a manner symmetric with the first circuit board 3 0 5 1 . The other two sides parallel to each other. The first light guide plate 3 〇3 1 , the second light guide plate 3 0 32 , the first circuit board 30 5 1 and the second circuit board 3 〇 52 form a quadrilateral structure, and the quadrilateral structure encloses a heat dissipation cavity (chamber). The heat dissipating cavity can be filled with a substance having high heat dissipation and high hardness, and can dissipate heat on the one hand, and can support the first light guide plate 30 31 and the second light guide plate 30 32 on the other hand. The second light-emitting diode 3 0 6 2 is electrically connected to the second circuit board 3 0 5 2 and protruded from the other side of the first light guide plate 3 0 3 1 and the first light guide plate 3 0 3 2 . The second arc reflecting plate 3 〇 8 2 covers the second light emitting diode 3 0 6 2 and the first light guiding plate 30 3 1 and the second light guiding plate 30 with the concave surface facing the second light emitting diode 3062 The side of the 32 is configured to reflect the light of the second LED 3 0 62 to the first light guide plate 3 0 3 1 and the second light guide plate 310. Since the concave surfaces of the first curved reflector 3 0 8 1 and the second curved reflector 3 0 8 2 have a reflection function, the first LEDs 3061 and the second LEDs 3 0 6 2 are emitted. The light can enter the first light guide plate 3031 from the side of the first light guide plate 3 0 3 1 and the second light guide plate 3032 through the reflection of the first curved reflector 3 0 8 1 and the second curved reflector 3 0 8 2 And in the second light guide plate 3032. Then, under the reflection of the two reflective materials 31 01 and 3 102, the first light guide plate 3 0 3 1 and the second light guide plate 3 0 3 2 will guide the received light through the first

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「一導光板3 0 3 1及第二導光板3〇32之正面朝向第一光學薄膜 41及第二光學薄膜3 142的方向射出。最後，藉由第一光，薄膜3141及第二光學薄膜3142之擴散作用，通過第一光學薄膜31 41及第二光學薄膜3142之光線將分別直射顯示面板3011及顯示面板3012，其雙面顯示器3〇〇之光線的出光方向如第3A圖中之箭頭方向所示，確實達到雙面出光之功效0 然熟悉此技藝者亦可以明瞭本發明之技術並不侷限在此，例如，數個第一發光二極體3〇 61係以排成一行或陣列之方，設置於第一電路板3 0 5 1上，如第3β圖所示。同理，數们弟一毛光一極體3 0 6 2係以排成一行或陣列之方式設置於第一電路板3051上。此些第一發光二極體3〇61及第二發光二極體3062可由發散紅光（r)、綠光（G)及藍光 (β )的發光二極體所組成，或是全部均為發散白光的發光二極體。弟二實施例請參照第4圖，其繪示乃依照本發明之第二實施例之背光模組的剖面圖。在第4圖中，雙面顯示器4 i與第一實施例之雙面顯示器不同之處在於背光模組4〇〇，而本實施例之背光模組40 0與第一實施例之背光模組3〇〇不同之處在於弧面反射板之結構，其餘相同之構成要件沿用相同之標號，並不再贅述。第一弧面反射板4021之凹面的中央具有一第一凸面 4041，且第一凸面4041面向第一發光二極體3〇61。同樣The front faces of the first light guide plate 3 0 3 1 and the second light guide plate 3 〇 32 are emitted toward the first optical film 41 and the second optical film 3 142. Finally, the first light, the film 3141 and the second optical film are used. The diffusion of 3142, the light passing through the first optical film 31 41 and the second optical film 3142 will be directly directed to the display panel 3011 and the display panel 3012, respectively, and the light output direction of the double-sided display 3 is as shown in the arrow in FIG. 3A. In the direction shown, the effect of double-sided light output is indeed achieved. However, those skilled in the art can also understand that the technology of the present invention is not limited thereto. For example, a plurality of first light-emitting diodes 3〇61 are arranged in a row or array. The other side is disposed on the first circuit board 3 0 5 1 as shown in the 3β figure. Similarly, the number of the light brothers and the polar body 3 0 6 2 are arranged in a row or array. On the circuit board 3051, the first light-emitting diodes 〇61 and the second light-emitting diodes 3062 may be composed of light-emitting diodes emitting red (r), green (G) and blue (β) light. Or all of them are dimming diodes that emit white light. For the second embodiment, please refer to 4 is a cross-sectional view showing a backlight module according to a second embodiment of the present invention. In FIG. 4, the double-sided display 4 i is different from the double-sided display of the first embodiment in a backlight mode. The backlight module 40 0 of the present embodiment is different from the backlight module 3 of the first embodiment in the structure of the curved reflector, and the other constituent elements are the same reference numerals, and The center of the concave surface of the first curved reflecting plate 4021 has a first convex surface 4041, and the first convex surface 4041 faces the first light emitting diode 3〇61.

TW1302(050912)CRF.ptc 第11頁 1261138 _-案號 9310758¾_年月日_ 修正五、發明說明（7) 地，第二弧面反射板4 〇22之凹面之中央具有一第二凸面 4042 ’且第二凸面4042面向第二發光二極體3062。藉由第一凸面4041及第二凸面4042的設計，可以增加第一導光板 3031及第二導光板3 032的入光效率。本發明上述實施例所揭露之背光模組，其以發光二極體作為光源之設計，可以避時會遇到的汞污染問題，相二極體較CCFL不易受到外力組中之光源的使用壽命。免產生如傳統上以C C F L為光源當符合環保趨勢。此外，發光之撞擊而毁損，保障了背光模綜上所述，雖然其並非用以限定本發明之精神和範本發明之保護範圍準〇然本發明已以一較佳實施例揭露如上，本發明’任何熟習此技藝者，在不脫離 =内’當可作各種之更動與潤飾，因此當視後附之申請專利範圍所界定者為TW1302(050912)CRF.ptc Page 11 1261138 _-Case No. 93107583⁄4_年月日日_ Amendment 5, Invention Description (7) Ground, the second curved reflector 4 〇22 has a second convex surface 4042 in the center of the concave surface And the second convex surface 4042 faces the second light emitting diode 3062. The light-in efficiency of the first light guide plate 3031 and the second light guide plate 3 032 can be increased by the design of the first convex surface 4041 and the second convex surface 4042. The backlight module disclosed in the above embodiments of the present invention has the design of a light-emitting diode as a light source, which can avoid the mercury pollution problem encountered in time, and the phase diode is less susceptible to the service life of the light source in the external force group than the CCFL. . It is not subject to the traditional trend of using C C F L as a light source. In addition, the impact of the illuminating damage is ensured by the backlight module, although it is not intended to limit the scope of the invention and the scope of the invention. The present invention has been disclosed in a preferred embodiment as above. 'Anyone who is familiar with this skill can make various changes and refinements without departing from the inside. Therefore, the scope defined in the attached patent application is

TW1302(050912)CRF.ptc 第12頁 1261138 __案號93107589_年月曰修正__ 圖式簡單說明【圖式簡單說明】第1圖繪示一傳統單向出光之背光模組的剖面圖。第2圖繪示一傳統雙向出光之背光模組的剖面圖。第3 A圖繪示依照本發明之第一實施例之背光模組的剖面圖。第3B圖繪示第3A圖之第一導光板、第二導光板、第一電路板、二反射材料及排成一行之數個第一發光二極體所組成之結構的部分左侧視圖。第4圖繪示依照本發明之第二實施例之背光模組的剖面圖。圖式標號說明 100、2 0 0、3 0 0、40 0 :背光模組 1 0 2、2 0 2 :冷陰極燈管 1 0 4、2 0 4 :燈管反射板 1 0 6、2 0 6 :導光板 I 0 8 :反射板 II 0、2 1 0 :擴散板 1 1 2、2 1 2 :稜鏡片 114 、 214 、 3011 、 3012 :顯示面板 2 0 8 :管洞圖案 3 0 1、4 0 1 ··雙面顯示器 3 0 2 :面板夾厚空間 3 0 3 1 :第一導光板TW1302(050912)CRF.ptc Page 12 1261138 __Case No. 93107589_Yearly 曰 _ __ Schematic Description [Simplified Schematic] Figure 1 shows a cross-sectional view of a conventional one-way illuminating backlight module . FIG. 2 is a cross-sectional view showing a conventional two-way light-emitting backlight module. Fig. 3A is a cross-sectional view showing a backlight module in accordance with a first embodiment of the present invention. FIG. 3B is a partial left side view showing the structure of the first light guide plate, the second light guide plate, the first circuit board, the two reflective materials, and the plurality of first light emitting diodes arranged in a row in FIG. 3A. Figure 4 is a cross-sectional view showing a backlight module in accordance with a second embodiment of the present invention. Schematic description 100, 2 0 0, 3 0 0, 40 0: backlight module 1 0 2, 2 0 2: cold cathode lamp 1 0 4, 2 0 4: lamp reflector 1 0 6, 2 0 6: light guide plate I 0 8 : reflector II 0, 2 1 0 : diffuser 1 1 2, 2 1 2 : cymbals 114, 214, 3011, 3012: display panel 2 0 8 : tube pattern 3 0 1, 4 0 1 ··Double-sided display 3 0 2 : Panel clamping space 3 0 3 1 : First light guide

TW1302(050912)CRF.ptc 第13頁 1261138 __案號93107589 _年月日修正圖式簡單說明 3 0 3 2 :第二導光板 3 0 4 :導光板夾厚空間 3 0 5 1 :第一電路板 3 0 5 2 :第二電路板 3 0 6 1 :第一發光二極體 3 0 6 2 :第二發光二極體 3 0 8 1、4 0 2 1 :第一弧面反射板 3 0 8 2、4 0 2 2 :第二弧面反射板 3 1 0 1、3 1 0 2 :反射材料 3 1 4 1 :第一光學薄膜 3 1 4 2 :第二光學薄膜 40 4 1 :第一凸面 4042 :第二凸面TW1302(050912)CRF.ptc Page 13 1261138 __Case No. 93107589 _ Year, Month, Day, Correction, Simple Description 3 0 3 2: Second Light Guide 3 0 4: Light Guide Plate Thickness Space 3 0 5 1 : First Circuit board 3 0 5 2 : second circuit board 3 0 6 1 : first light emitting diode 3 0 6 2 : second light emitting diode 3 0 8 1 , 4 0 2 1 : first curved reflecting plate 3 0 8 2, 4 0 2 2 : second curved reflector 3 1 0 1 , 3 1 0 2 : reflective material 3 1 4 1 : first optical film 3 1 4 2 : second optical film 40 4 1 : a convex surface 4042: a second convex surface

TW1302(050912)CRF.ptc 第14頁TW1302(050912)CRF.ptc第14页

Claims

1261138 Λ U '…te 號 931075&» -------------------...«η, *·· - · -' 六、申請專利範圍 1 · 一種背光模組，適用於一雙面顯示器，示器具有二彼此平行設置之顯示面板，且該二間係形成一面板夾厚空間，該背光模組包含：二導光板，設置於該面板夾厚空間中，並面板平行，該二導光板之間係形成一導光板失一電路板，係以位於該導光板失厚空間中於該二導光板之彼此平行的二側邊；以及至少一發光二極體，係電性連接於該電路於該二導光板之侧面外Q 2·如申請專利範圍第1項所述之背光模組路板及該二導光板係形成一 U字形結構。 3 ·如申明專利範圍第1項所述之背光模組光模組更包括： ' '' 一弧面反射板，係以其凹面面向該發光二罩住該發光二極體與該二導光板之侧面，二極體之光線至該二導光板内。 4 · 士申口月專利範園第3所述之背光模面反射板之凹面的中央，；二極體。你光模：更如::專利範圍第1項所述之背光模組一反射材料，係以位於哕導光板夾厚空門別設置於該二導光板之#於。亥ν 予工間〜衣面卜。 6. 一種背光模組，& „ >雙面顯示器該雙面顯顯示面板之與該二顯示厚空間；之方式夾置板，且凸設，其中該電，其中該背極體之方式反射該發光，其中該弧面向該發光，其中該背中之方式分，該雙面顯適用於1261138 Λ U '...te number 931075&» -------------------...«η, *·· - · -' VI. Patent application scope 1 · A The backlight module is applicable to a double-sided display, and the display device has two display panels arranged in parallel with each other, and the two systems form a panel clamping space. The backlight module comprises: two light guide plates, and the thickness of the panel is set. In the space, the parallel plates are formed, and a light guide plate is formed between the two light guide plates, and a circuit board is disposed on the two sides of the two light guide plates which are parallel to each other in the thick space of the light guide plate; and at least one light is emitted. The diode is electrically connected to the circuit outside the side of the two light guide plates. Q 2 The backlight module circuit board according to claim 1 and the two light guide plates form a U-shaped structure. 3. The backlight module optical module of claim 1, further comprising: ''' a curved reflector, which covers the light emitting diode and the two light guide plates with the concave surface facing the light emitting surface On the side, the light of the diode is in the two light guide plates. 4 · The center of the concave surface of the backlight reflector of the third embodiment of Shishenkouwan Patent Park,; diode. Your light mode: more like:: The backlight module described in the first paragraph of the patent range, a reflective material, is placed on the two light guide plates at the thickness of the light guide plate. Hai ν 予工室 ~ 衣面卜. 6. A backlight module, &> double-sided display, the double-sided display panel and the two display thick space; the manner of sandwiching the board, and protruding, wherein the electricity, wherein the back pole body Reflecting the illuminating light, wherein the arc faces the illuminating light, wherein the way of the back is divided, the double sided display is suitable for

TW1302(050912)CRF.ptc 第15頁 1261138TW1302(050912)CRF.ptc Page 15 1261138

示器具有二尬L 皮此平行設置之_ - 形成一面板杏斥_ 4不面板，且該二顯示面板間修正一第一導尖4 ^ a九杈組包含：間中，並與今— 光板，設置於該面板夾厚空光板之間係形士 ^ 订，該第一導光板及該第二導一第一雷ί—導光板夾厚空間；電路板及一第二帝μ 空間中，該第— ν 一兒路板，夾置於該導光板夾厚 .t # 電路板係位於兮_τ 1 Α , Υ 側邊，該第-φ Μ 〃、3 —導光板之彼此平行的二侧邊；以及、4 一導光板之彼此平行的另二弟發光二極體及一筮-Λ τ 連接於該第一雷』弟一龟光二極體，係分別電性體係凸設於該該第，電路板上，㈣-發光二極第二發光二極體倍=二=及f第二導光板之一側面外，該另一侧面外。，、凸政於遠第一導光板及該第二導光板之 7 々π由上主 i P $ 口甲凊專利範圍第β項所述之背光模組，其中該背光杈組更包括：蝴第弧面反射板，係以其凹面面向該第一發光二極 =之方式罩住該第一發光二極體和該第一導光板及該第二 V光板之該側面，用以反射該第/發光二極體之光線至該 -一導光板内。 8 ·如申請專利範圍第7項所述之背光模組，其中該第一弧面反射板之凹面的中央具有/第一凸面，該第一凸面係面向該第一發光二極體。 9 ·如申請專利範圍第了項戶斤述之背光模組，其中該背The display has two 尬L skins which are arranged in parallel _ - forming a panel of apricot repulsion _ 4 no panel, and the two display panels are modified by a first guide tip 4 ^ a 杈 group contains: Between, and now - The light plate is disposed between the panel and the thick light plate, and the first light guide plate and the second guide and the first light-light guide plate have a thick space; the circuit board and a second emperor μ space , the first - ν a road board, sandwiched between the light guide plate thickness. t # circuit board is located at 兮 _τ 1 Α , 侧 side, the first - φ Μ 〃, 3 - light guide plates are parallel to each other The two sides of the light guide plate are parallel to each other, and the other two light-emitting diodes and one 筮-Λ τ are connected to the first ray 弟一龟龟龟龟龟二 , , The first, the circuit board, (four) - the light emitting diode second light emitting diode times = two = and f one side of the second light guide plate, the other side is outside. , the illuminating lining of the first light guide plate and the second light guide plate are 7 々π by the upper main i P 口凊凊凊凊凊凊背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光背光The arcuate reflecting plate covers the first light emitting diode and the side of the first light guiding plate and the second light plate with the concave surface facing the first light emitting diode= for reflecting the first The light of the light-emitting diode is in the light guide plate. 8. The backlight module of claim 7, wherein a central portion of the concave surface of the first curved reflecting plate has a first convex surface facing the first light emitting diode. 9 · If the patent application scope is the first item, the backlight module, which is the back

TW1302(050912)CRF.ptc -< 第16貢 1261138 案號93107589 年月日修正六、申請專利範圍光模組更包括：一第二弧面反射板，係以其凹面面向該第二發光二極體之方式罩住該第二發光二極體和該第一導光板及該第二導光板之另該側面，用以反射該第二發光二極體之光線至該第一導光板及該第二導光板内。 10. 如申請專利範圍第9項所述之背光模組，其中該第二弧面反射板之凹面之中央具有一第二凸面，該第二凸面係面向該第二發光二極體。 11. 如申請專利範圍第6項所述之背光模組，其中該背光模組更包括：二反射材料，係以位於該導光板夾厚空間中之方式分別設置於該第一導光板及該第二導光板之表面上。 12. 如申請專利範圍第6項所述之背光模組，其中該第一導光板、該第二導光板、該第一電路板及該第二電路板係形成一四邊形結構。TW1302(050912)CRF.ptc -< 16th tribute 1261138 Case No. 93107589 Revised on the sixth day, the patent application scope optical module further includes: a second curved reflector, with its concave surface facing the second illumination The second light emitting diode and the other side of the first light guide plate and the second light guide plate cover the light of the second light emitting diode to the first light guide plate and the Inside the second light guide plate. 10. The backlight module of claim 9, wherein a concave surface of the second curved reflector has a second convex surface facing the second light emitting diode. 11. The backlight module of claim 6, wherein the backlight module further comprises: a second reflective material disposed on the first light guide plate and in the manner of being located in the thick space of the light guide plate On the surface of the second light guide plate. 12. The backlight module of claim 6, wherein the first light guide plate, the second light guide plate, the first circuit board, and the second circuit board form a quadrilateral structure.

TW1302(050912)CRF.ptc 第17頁 1261138 案號93107589 年月日修正六、指定代表圖 (一）、本案代表圖為：第3A圖 (二）、本案代表圖之元件代表符號簡單說明： 3 0 0 :背光模組 3 0 1、4 0 1 :雙面顯示器 3 0 1 1、3 01 2 :顯示面板 3 0 2 ：面板夾厚空間 3 0 3 1 :第一導光板 3 0 3 2 :第二導光板 3 0 4 :導光板夾厚空間 3 0 5 1 :第一電路板 3052 :第二電路板 3 0 6 1 :第一發光二極體 3062 :第二發光二極體 3 0 8 1 :第一弧面反射板 3 0 8 2 :第二弧面反射板 3 1 0 1、3 1 0 2 :反射材料 3 1 4 1 :第一光學薄膜 3 1 4 2 :第二光學薄膜TW1302(050912)CRF.ptc Page 17 1261138 Case No. 93107589 Revision of the date of the month 6. Designation of the representative figure (1), the representative figure of the case is: Figure 3A (2), the representative symbol of the representative figure of this case is a simple description: 3 0 0 : Backlight module 3 0 1 , 4 0 1 : Double-sided display 3 0 1 1 , 3 01 2 : Display panel 3 0 2 : Panel clamping space 3 0 3 1 : First light guide 3 0 3 2 : The second light guide plate 3 0 4 : the light guide plate clamping space 3 0 5 1 : the first circuit board 3052 : the second circuit board 3 0 6 1 : the first light emitting diode 3062 : the second light emitting diode 3 0 8 1 : First curved reflector 3 0 8 2 : Second curved reflector 3 1 0 1 , 3 1 0 2 : Reflective material 3 1 4 1 : First optical film 3 1 4 2 : Second optical film

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