M355397 五、新型說明： 【新型所屬之技術領域】 本，是關於-種導光板與t光模組，且特別㈣於—種 大出光量之導光板與使用該導光板的背光模組。 ^ 【先前技術】M355397 V. New description: [New technical field] This is about a kind of light guide plate and t-light module, and especially (4) a light guide plate with a large amount of light and a backlight module using the light guide plate. ^ [Prior Art]
=二年來，縣液日日日顯示器之技術賴速發展，且其所發射 射篁了]、，傳統的CRT顯示器，因此液晶顯示器現已成為顯示器市場 之主>爪。背光模組為液晶顯示器面板的關鍵零組件之―，由於 液晶本身不發光，背光模組之功能即在於供應充足的亮度與分 布均勻的光源，使其能正常顯示影像。一般而言，背光模組可 分為側邊入光式與直下入光式兩種，而側邊入光式背光模組主 要應用於小尺寸之液晶顯示器，如桌上型電腦或筆記型電腦用 的液BB顯示态。侧邊入光式背光模組的主要構件為導光板及燈 管’其中燈管是放置於導光板的側方。In the past two years, the technology of the county liquid day and day display has been developing rapidly, and its launch has been launched.], the traditional CRT display, so the liquid crystal display has become the main player in the display market. The backlight module is a key component of the liquid crystal display panel. Since the liquid crystal itself does not emit light, the function of the backlight module is to supply a sufficient light source with uniform brightness and uniformity to enable normal display of images. In general, the backlight module can be divided into two types: a side-input type and a direct-input type, and the side-in-light type backlight module is mainly applied to a small-sized liquid crystal display such as a desktop computer or a notebook computer. The liquid BB used is displayed. The main components of the side-lit backlight module are a light guide plate and a lamp tube, wherein the lamp tube is placed on the side of the light guide plate.
請參照圖1 ’圖1所繪示為習知的側邊入光式背光模組示意 圖。此側邊入光式背光模組100包括：二反射罩11〇、二燈管 120、一反射片130、一導光板140與多片光學膜150。其中， 上述^—燈管120分別設置於導光板140兩旁且被反射罩11〇 所包覆，反射片130則是設置在導光板140下方，而光學膜150 則是設置在導光板140上方。此導光板140具有二入光面141 與一出光面142，其中入光面141與出光面142彼此呈垂直。 燈管120所發出的光線有些會直接射入至入光面141，其 他部分的光線則會被反射罩110反射後再射入至入光面141。 導光板140的底面塗佈有多個反光圖案（未繪示），故燈管120 所發出的光線在射入導光板140後會被反光圖案所反射，而使 3 M355397 光線朝光學膜150的方向入射。 由於目前的液晶顯示器愈來愈講求輕薄的造型，因、一 的厚度也愈來愈薄。若導光板140愈薄，則入光面‘光板140 就愈小，燈^20所發出的光線中直接射人至 ^ 也就愈小，而經由反射罩110而射入至入光面14 = 大。然而，光線被反射罩110反射後，部分的 U0所吸收。這樣一來，入射至入光面141的入光罩 導光板140之出光面142的出光量也就愈低。 就愈乂 θ因此，如何使導絲的厚錢薄的同__持 量，是值得本領域具有通常知識者去思量地。 、 【新型内容】 本創作主要目的係提供-種導光板與使 組’該導光板具雜大的出光量。 括.上其Γ的，本創作提供—種背光模組，其包 與至少—反料。導光板_邊具有至少 入先面，該入光面為一傾斜面。其中， 面旁，且反射罩圍繞著光源。此外 ϋ ’ :j於=光 的中垂面上。 尤源的中、點例如疋位於入光面 於上述之背光模組中，光源為冷陰極榮光燈管或發光二極體。 方 。：述之月光模組中’更包括一擴散膜，該擴散膜位於導光板上 上方 於上述之背光模組中，更包括一增亮膜， 該增亮膜位於擴散膜的 M355397 ) ' « 述之f光模組中’人光_個數為二個，分別位於導光板的 相對二側。 於上述之背光模組中，更包括一反射片，該反射片設置於 板的下方。 為了達成上述目的與其他目的，本創作提供—種導歧，其侧邊 具有至少-人光面’該導光板之特徵在於：該人光面為—傾斜面。 由於本創作之導光板具有傾斜的入光面，故入光面具有較習 知的導光板為大的面積。因此，相較於習知的導光板，光源所發 出的光線中直接射入至入光面的量較大，而經由反射罩反射再 射入至入光面的量則較小。也因此，相較於習知的導光板，本 創作之導光的出光面具有較大的出光量。 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 下述具體實施例，並配合所附之圖式，對本創作詳加說明如後。 【實施方式】 請先參照圖2，圖2所繪示為本創作之第一實施例的背光模組示 意圖。此背光模組200包括：二反射罩210、二光源220、一反 鲁射片230、一導光板240與多片光學膜250。其中，上述之二 光源220分別設置於導光板240兩旁且被反射罩210所包覆， 反射片230則是設置在導光板240下方，而光學膜250則是設 置在導光板240上方。此導光板240具有二入光面241與一出 光面242，其中入光面241為一傾斜面，此入光面241與出光面 242間具有一夾角Θ。其中，光源220所發出的光線，有些會直 接射入至入光面241，其他部分的光線則會被反射罩210反射 後再射入至入光面241 導光板240的底部塗佈有多個反光圖案（未繪示），故光源 5 M355397 I ' * 220所發出的光線在射入導光板240後會被反光圖案所反射， 而使光線朝出光面242的方向射出。光學膜250包括一擴散膜 251與一增亮膜252 ’擴散膜251能使光線擴散地更均勻，而 增亮膜252則是用來將已擴散的光線再聚集起來，以增加亮 度。另外，從導光板240的底部所漏出的光線則會被反射片230 所反射而再射入至導光板240中。此外，反射罩210的功用在 於讓光源220所發出的光線能朝著導光板240的方向射出。 請比較圖1與圖2,由於入光面241為傾斜面，故導光板240 φ之入光面241的面積會大於導光板140之入光面141的面積。 因此’相較於導光板140，光源220所發出的光線中直接射入至 入光面241的量較大，而經由反射罩210反射再射入至入光面 241的量則較小。也因此，相較於導光板140之出光面142， 導光板240之出光面242具有較大的出光量。根據本創作之創 作人所做的模擬結果，若夾角Θ為30度且其他的條件皆相同 的情況下，則出光面242的出光量約為出光面142之出光量的 兩倍。 籲本領域具有通常知識者可依據情況而調整上述之夾角0，若炎角 Θ愈小，則入光面241的面積就愈大’出光面242的出光量也 就愈大。此外，上述之光源220的中心點是位於入光面241的中 垂面241a上，但本領域具有通常知識者也可依情況對光源22〇的位 置進行調整。; 另外’上缚之光源220為冷陰極螢光燈管（c〇ld Cathode Fluorescent Lamp) ’但本領域具有通常知識者也可將其置換成發光二極 體(Light Emitting Diode)。請參照圖3，圖3所繪示為本創作之第二實 施例的背光模組示意圖。於圖3中，與第一實施例相同的元件將標以 相同的符號且不再贅述。於本實施例中，光源32〇為發光二極體且焊 6 M355397 ♦ · * » 接在一印刷電路板322上。 於上述之實施例中，入光面241是設置於導光板240的兩 側，但本領域具有通常知識者也可只於其中一側設置入光面。 請參照圖4，圖4所繪示為本創作之第二實施例的背光模組示意圖。 此背光模組300包括：一反射罩310、一光源320、一反射片 330、一導光板340與多片光學膜350,光學膜350包括一擴散 膜351與一增亮膜352。其中，導光板340的底面343為從右 下向左上傾斜的傾斜面，反射片330則設置在底面343的下 鲁方。入光面341僅設置於導光板340的其中一側，而反射罩31〇 與光源3 2 0則設置在入光面3 41旁。 綜上所述’由於本創作之導光板具有傾斜的入光面，故入光 面具有較習知的導光板為大的面積。因此，相較於習知的導光 板，光源所發出的光線中直接射入至入光面的量較大，而經由 反射罩反射再射入至入光面的量則較小。也因此，相較於習知 的導光板’本創作之導光的出光面具有較大的出光量。 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Referring to FIG. 1 , FIG. 1 is a schematic view of a conventional side-lit backlight module. The edge-lit backlight module 100 includes a second reflector 11 , two lamps 120 , a reflective sheet 130 , a light guide 140 , and a plurality of optical films 150 . The light-emitting tubes 120 are disposed on both sides of the light guide plate 140 and covered by the reflective cover 11 , the reflective sheet 130 is disposed under the light guide plate 140 , and the optical film 150 is disposed above the light guide plate 140 . The light guide plate 140 has a light incident surface 141 and a light exit surface 142, wherein the light incident surface 141 and the light exit surface 142 are perpendicular to each other. Some of the light emitted by the lamp 120 is directly incident on the light incident surface 141, and other portions of the light are reflected by the reflector 110 and then incident on the light incident surface 141. The bottom surface of the light guide plate 140 is coated with a plurality of reflective patterns (not shown), so that the light emitted by the light tube 120 is reflected by the reflective pattern after being incident on the light guide plate 140, and the light of the 3 M355397 is directed toward the optical film 150. Directional incidence. As current liquid crystal displays are increasingly demanding thin and light shapes, the thickness of one is becoming thinner and thinner. If the light guide plate 140 is thinner, the light-incident surface of the light-incident plate 140 is smaller, and the light emitted from the lamp 20 is directly incident on the light-emitting surface, and is incident on the light-incident surface 14 via the reflector 110. Big. However, after the light is reflected by the reflector 110, part of U0 is absorbed. As a result, the amount of light emitted from the light-emitting surface 142 of the light-receiving light guide plate 140 incident on the light-incident surface 141 is lower. Therefore, the more θ θ, therefore, how to make the thickness of the guide wire thin and the same __ is worthy of consideration in the field of ordinary knowledge. [New Content] The main purpose of this creation is to provide a kind of light-emitting plate and a light-emitting amount of the light guide plate. In addition, the author provides a backlight module, which is packaged with at least a counter material. The light guide plate _ has at least a front surface, and the light incident surface is an inclined surface. Wherein, the side of the face, and the reflector surrounds the light source. In addition ϋ ’ : j is on the mid-surface of the light. The center point of the Eugene source, for example, is located in the backlight module of the light incident surface, and the light source is a cold cathode glory tube or a light emitting diode. Party. The description of the moonlight module includes a diffusion film which is located above the light guide plate in the backlight module, and further includes a brightness enhancement film (the brightness enhancement film is located on the diffusion film M355397) '« In the f-light module, the number of 'personal light' is two, which are respectively located on opposite sides of the light guide plate. In the backlight module described above, a reflective sheet is further disposed, and the reflective sheet is disposed under the board. In order to achieve the above and other objects, the present invention provides a guide having a side having at least a human face. The light guide is characterized in that the person's glossy surface is an inclined surface. Since the light guide plate of the present invention has an inclined light incident surface, the light incident surface has a larger area than a conventional light guide plate. Therefore, compared with the conventional light guide plate, the amount of light emitted from the light source directly into the light incident surface is larger, and the amount reflected by the reflector to be incident on the light incident surface is smaller. Therefore, compared with the conventional light guide plate, the light-emitting surface of the light guide of the present invention has a large amount of light emitted. In order to familiarize the person skilled in the art with the purpose, features and effects of the present invention, the present invention will be described in detail by the following specific embodiments and with the accompanying drawings. [Embodiment] Please refer to FIG. 2 first, and FIG. 2 is a schematic diagram of a backlight module according to a first embodiment of the present invention. The backlight module 200 includes a second reflector 210, two light sources 220, a retro-reflective sheet 230, a light guide plate 240, and a plurality of optical films 250. The two light sources 220 are disposed on the two sides of the light guide plate 240 and covered by the reflector 210. The reflection sheet 230 is disposed under the light guide plate 240, and the optical film 250 is disposed above the light guide plate 240. The light guide plate 240 has a light incident surface 241 and a light exit surface 242. The light incident surface 241 is an inclined surface. The light incident surface 241 and the light exit surface 242 have an angle Θ. Some of the light emitted by the light source 220 is directly incident on the light incident surface 241, and other portions of the light are reflected by the reflective cover 210 and then incident on the light incident surface 241. The bottom of the light guide plate 240 is coated with a plurality of light. The light-reflecting pattern (not shown), the light emitted by the light source 5 M355397 I ' * 220 is reflected by the reflective pattern after being incident on the light guide plate 240, and the light is emitted toward the light-emitting surface 242. The optical film 250 includes a diffusion film 251 and a brightness enhancement film 252'. The diffusion film 251 diffuses the light more uniformly, and the brightness enhancement film 252 is used to re-aggregate the diffused light to increase the brightness. In addition, light leaking from the bottom of the light guide plate 240 is reflected by the reflection sheet 230 and is incident on the light guide plate 240. In addition, the function of the reflector 210 is to allow the light emitted by the light source 220 to be emitted toward the light guide plate 240. 1 and FIG. 2, since the light incident surface 241 is an inclined surface, the area of the light incident surface 241 of the light guide plate 240 φ is larger than the area of the light incident surface 141 of the light guide plate 140. Therefore, the amount of light emitted from the light source 220 directly entering the light incident surface 241 is larger than that of the light guide plate 140, and the amount reflected by the reflective cover 210 and incident on the light incident surface 241 is small. Therefore, the light exit surface 242 of the light guide plate 240 has a larger amount of light emitted than the light exit surface 142 of the light guide plate 140. According to the simulation results of the author of the present creation, if the angle Θ is 30 degrees and all other conditions are the same, the light-emitting surface 242 emits twice as much light as the light-emitting surface 142. It is claimed that those having ordinary knowledge in the field can adjust the above-mentioned angle 0 according to the situation. If the inflammation angle is smaller, the area of the light-incident surface 241 is larger, and the amount of light emitted from the light-emitting surface 242 is also larger. Further, the center point of the light source 220 is located on the vertical surface 241a of the light incident surface 241. However, those skilled in the art can adjust the position of the light source 22A as appropriate. Further, the light source 220 is a closed cathode fluorescent lamp (c〇ld Cathode Fluorescent Lamp), but it is also known to those skilled in the art to replace it with a Light Emitting Diode. Please refer to FIG. 3. FIG. 3 is a schematic diagram of a backlight module according to a second embodiment of the present invention. In FIG. 3, the same components as those of the first embodiment will be denoted by the same reference numerals and will not be described again. In this embodiment, the light source 32 is a light emitting diode and the solder 6 M355397 ♦ · * » is connected to a printed circuit board 322. In the above embodiment, the light incident surface 241 is disposed on both sides of the light guide plate 240. However, those skilled in the art may also provide the light incident surface only on one side. Please refer to FIG. 4 , which is a schematic diagram of a backlight module according to a second embodiment of the present invention. The backlight module 300 includes a reflective cover 310, a light source 320, a reflective sheet 330, a light guide plate 340 and a plurality of optical films 350. The optical film 350 includes a diffusion film 351 and a brightness enhancement film 352. The bottom surface 343 of the light guide plate 340 is an inclined surface that is inclined from the lower right to the upper left, and the reflection sheet 330 is disposed on the lower side of the bottom surface 343. The light incident surface 341 is disposed only on one side of the light guide plate 340, and the reflective cover 31 and the light source 320 are disposed beside the light incident surface 361. As described above, since the light guide plate of the present invention has an inclined light incident surface, the light incident surface has a larger area than the conventional light guide plate. Therefore, compared with the conventional light guide plate, the amount of light emitted from the light source directly entering the light incident surface is larger, and the amount of light reflected through the reflector and incident on the light incident surface is smaller. Therefore, the light-emitting surface of the light guide of the present invention has a larger amount of light emitted than the conventional light guide plate. Although the present disclosure has been disclosed above in the specific embodiments, the specific implementation disclosed therein
並非用以限定本辦，任域悉此賴者，在秘離本獅之精神= 賴内L當可作各種之更動與潤飾，其所作之更動與潤飾皆屬於 作之㈣，本創作之保魏圍當視後附之_料娜圍 【圖式簡單說明】 〜可馬準。 圖1所繪:為習知的側邊人光式背光模組示意圖。 圖2所、為本創作之第-實施例的背光模組示意圖。 圖3所、,a，為本創作之第二實施例的背光模組示意圖。 圖4所、.曰不為本創4乍之第二實施例的背光模組示意圖。 7 M355397It is not intended to limit the Office. Anyone who knows this is the spirit of the lion. If you are in the spirit of the lion, you can make all kinds of changes and refinements. The changes and refinements made by them are all in the works. (4) Wei Wei is attached to the _ material Nawei [simple description of the map] ~ Ke Ma Zhuan. 1 is a schematic view of a conventional side human light backlight module. FIG. 2 is a schematic diagram of a backlight module according to a first embodiment of the present invention. 3 and a are schematic diagrams of a backlight module according to a second embodiment of the present invention. FIG. 4 is a schematic diagram of a backlight module according to a second embodiment of the present invention. 7 M355397
> > I 【主要元件符號說明】 <先前技術> 100 :背光模組 110 :反射罩 120 :燈管 130 :反射片 140 :導光板 141 :入光面 φ 142 :出光面 150 :光學膜 <本創作> 200、300 :1背光模組 210、310 :反射罩 220、320 :光源 322 :印刷電路板 230、330 ··反射片 240、340 :導光板 • 24卜341 ::入光面 241a :中垂面 242 :出光面 343 :底面 250、 350 :光學膜 251、 351 ::擴散膜 252、 352 :增亮膜 Θ :夾角 8>> I [Description of main component symbols] <Prior Art> 100: Backlight module 110: Reflector 120: Lamp 130: Reflector 140: Light guide plate 141: Light-incident surface φ 142: Light-emitting surface 150: Optical film <this creation> 200, 300:1 backlight module 210, 310: reflectors 220, 320: light source 322: printed circuit boards 230, 330 · · reflection sheets 240, 340: light guide plate 24 24: : light incident surface 241a : middle vertical surface 242 : light emitting surface 343 : bottom surface 250 , 350 : optical film 251 , 351 :: diffusion film 252 , 352 : brightness enhancement film Θ : angle 8