M323060 八、新型說明： 【新型所屬之技術領域】 本創作涉及一種使用於背光模組的導光裝置。 【先前技術】 „ 一般麟lq)的背光模组包含有-導絲，導光板的第一侧面設 、置-反射片’相對的第二侧面則設置由擴散片與稜鏡片等所組成的複 數光學膜片’再於該些元件的周邊以—外框包圍，導光板的側邊則設 置光源，光源所發出#光線由導光板的侧邊投射進入，部分光線由反 射片反射，再依序通過擴散片與稜鏡片射出。 不同規&的$光板’其尺寸也不相同，但對於亮度均句性的要求 是-致的。對於小尺寸的導光板而言，由於面積小，所以在能維持一 定亮度的條件下，可以使職少數量的絲(通常採·D);但對於 大尺寸及大®麵導光板丨（如第四_示），縣了戦光線在較寬 且長的導絲中傳遞而降低亮度，因而必須制較多數量的光源2 ; 此外，為了使光線透出大面積導絲時呈現出均勻性，除了利用前述 設於導光板-側面的擴散片來將光線擴散之外，有些導光板丨會如第 五圖所示在設置光__[體賴或二次加工方式軸複數光學 結構11，讓光線從侧邊進入導光板時，先由該些光學結構將光線的出 光角度做大範圍的擴散，藉以進一步提昇導光板的亮度均勻性。 【新型内容】 M323060 "前縣在絲人射輕置光學結構的大尺寸導級，為了維持導 光板的儿度必然要使用較多數量的光源，但除了原先結合於導光板 的各式光學則以外’無法再繼其它結構來提昇該亮度的均句性。 而在光源人射k有光學結制大尺寸導光板，軸可以提昇導光板 *的亮度與均·，但是導光板卻因為必須經過光學結構的加工而增加 ，製造成本，且光源的使贿量卻無法明顯地減少。因此，本創作的主 、要目的即在於解決此一問題。 本創作的其中特徵，是在設於導光板侧邊的光源射出端設置至 =具有改變光行進方向作用的光學膜；絲的錄射出後先通過該 =膜再獻導光板，藉由該光學膜改變光、_折射纽，讓光源的 ^角度能縣大範_散，躺使亮度更均勻，魏減少光源的使 用數量。 本創作可叫所述光學朗結合複數能讓光線產生折射的物體， =条=或填充物，該物體可以是透光或不透光_，例如玻璃 今光與膜日± 以直接在_上縣成型域何形狀；當光線穿過 予、$，光線叉到該物體或幾何形狀阻播而產生折射，從而產生 擴大出光角度的效果。 r工， =作的技術手段，可以將所述光學财外製造，然後依光源的 y裁切姑的面積，再將該光學膜貼覆於柄的射出端即可；因 創作料光裝置不需要對導紐_邊進行光學結構的加-、、且衣更為方便’更能減少光源的使用數量，從而降低製造成本 6 M323060 【實施方式】 以下配合圖式及70件符號對本創作的實施方式做更詳細的說明， 俾使熟㈣項技術領域者在研讀本酬書後能據以實施。 如第-圖所示，本創作提供的背光模組的導光裝置，包括有一導 光板1與至少-设在該導光板i側邊的光源2，該光源2的光線射出 „端設置至少-具有改變光行進方向_的光學膜3 ;光源2的光線射 .出後先通過該光學膜3再射人導歧卜藉由該光學膜3改變光線的 折射角度’讓光源的出光角度能形成大範圍讎，從而使亮度更均勾， 並能減少光源的使用數量。 再如第二圖與第三圖所示，所述光學膜3的較佳實施例，可以在 可透光的薄動部結合複數可以讓光線產生折射的物體3卜例如條狀 物或其它幾何形狀的填充物，該物體31可以是透光或不透光的物質， 例如玻璃纖維、···等；或以壓製成型技術在義上形成线何形狀； 因此’當光線如第三騎示地穿過該光學膜3時，光線受職物體別 或幾何形狀的_得以產生折射，從而產生擴大出光肖度的效果。 所述光+膜3可以依光源2的大小而裁切適當的面積，再將該光 學膜貼覆於光源的射《即可。因此，本猶《十分方便，更能減 少光源的使用數量，從而降低製造成本。 X上所述者僅為用以解釋本創作之較佳實施例，並非企圖據以對 本創作做任何形式上之關，是以，凡有在_之精神下所作有關之 任何修飾或變更，皆仍應包括在本創作意圖保護之範疇。 M323060 【圖式簡單說明】 第-圖為顯示本創作較佳實施例之平面示意圖。 第二圖為顯示本創作用於組合在光源射出端之光學結構之立體示意 圖。 第三圖為顯示第二圖之光學結構，以及光線通過該光學膜時產生折射 ，之不意圖。 、第四圖為顯示習知導光裝置，在不具有光學結構的導光板側邊設置複 _數光源之示意圖。 第五圖為顯示習知導光裝置，在具有光學結構的導光板侧邊設置複數 光源之示意圖。 【主要元件符號說明】 卜·· 光板 11·· 光學結構 2···· 3···· ••光學膜 31- 8M323060 VIII. New description: [New technical field] The present invention relates to a light guiding device used in a backlight module. [Prior Art] „General Lin lq” backlight module includes a guide wire, the first side of the light guide plate, and the opposite side of the reflective sheet are provided with a plurality of diffusers and cymbals. The optical film 'is further surrounded by the outer frame of the components, and the light source is provided with a light source on the side of the light guide plate. The light emitted by the light source is projected from the side of the light guide plate, and part of the light is reflected by the reflective sheet, and then sequentially The diffuser and the cymbal are ejected. The different gauges & the 'light panel' are also different in size, but the requirement for brightness uniformity is - for small-sized light guides, due to the small area, Under the condition that a certain brightness can be maintained, a small amount of wire can be used (usually D·D); but for large size and large® surface light guide plates (such as the fourth_show), the county has a wide and long light. The guide wire is transferred to reduce the brightness, so a larger number of light sources 2 must be made; in addition, in order to make the light show a uniformity when the large-area guide wire is exposed, in addition to using the above-mentioned diffusion plate provided on the side of the light guide plate In addition to light diffusion, some guides As shown in the fifth figure, the plate 丨 will be set in the light __[body or secondary processing mode axis complex optical structure 11 to allow light to enter the light guide plate from the side, first by the optical structure to make the light angle of light A wide range of diffusion, in order to further enhance the brightness uniformity of the light guide plate. [New content] M323060 "Pre-County in the large-scale guide of the light-emitting optical structure of the silk man, in order to maintain the light guide plate, it is necessary to use more The number of light sources, but in addition to the various opticals originally combined with the light guide plate, 'cannot continue the other structure to enhance the uniformity of the brightness. And in the light source human shot k have optically formed large size light guide plate, the axis can be improved The brightness and uniformity of the light guide plate*, but the light guide plate is increased due to the processing of the optical structure, the manufacturing cost, and the amount of the light source can not be significantly reduced. Therefore, the main purpose of the creation is to solve This problem is characterized in that the light source exit end provided on the side of the light guide plate is disposed to the optical film having the function of changing the traveling direction of the light; The film is provided with a light guide plate, and the optical film is used to change the light and the refracting button, so that the angle of the light source can be widened, the brightness is more uniform, and the number of light sources is reduced. The optical lang combines a complex object that allows the light to refract, = strip = or filler, the object can be light transmissive or opaque _, such as glass ray and film day ± directly in the shape of the _ Shangxian molding domain When the light passes through the $, the light is crossed to the object or the geometry is blocked to produce refraction, thereby producing an effect of expanding the angle of light. r, = technical means, the optical wealth can be manufactured, and then According to the y of the light source, the optical film is attached to the injection end of the handle; the optical device does not need to add the optical structure to the guide, and the clothes are more convenient. 'More can reduce the number of light sources used, thus reducing the manufacturing cost 6 M323060 [Embodiment] The following is a more detailed description of the implementation of this creation with the pattern and 70 symbols, so that those skilled in the technical field are studying After the book can be based on reality Shi. As shown in the first figure, the light guiding device of the backlight module provided by the present invention comprises a light guiding plate 1 and at least a light source 2 disposed on a side of the light guiding plate i, and the light of the light source 2 is emitted at least □ The optical film 3 having the light traveling direction _ is changed; the light of the light source 2 is emitted and then passed through the optical film 3 to redirect the light. The optical film 3 changes the angle of refraction of the light to make the light exiting angle of the light source A wide range of flaws, thereby making the brightness more uniform, and reducing the number of light sources used. As shown in the second and third figures, the preferred embodiment of the optical film 3 can be thinned in light transmission. The combination of a plurality of elements that allow the light to refract, such as a strip or other geometrical filler, may be a light transmissive or opaque material, such as fiberglass, etc.; or The forming technique forms a line shape in the sense; therefore, when the light passes through the optical film 3 as shown in the third riding, the ray of the object or the geometric shape of the light is refracted, thereby producing an effect of expanding the light output. The light + film 3 can be according to the light source 2 The size is cut and the appropriate area is cut, and the optical film is attached to the light source. Therefore, this is quite convenient, and the number of light sources can be reduced, thereby reducing the manufacturing cost. In order to explain the preferred embodiment of the present invention, it is not intended to be in any form related to the creation of the creation, so that any modifications or changes made in the spirit of _ should still be included in the creation. The scope of the intentional protection. M323060 [Simplified description of the drawings] The first figure is a schematic plan view showing a preferred embodiment of the present creation. The second figure is a perspective view showing the optical structure of the present invention for combining the light emitting ends. The figure shows the optical structure of the second figure, and the refraction is generated when the light passes through the optical film. The fourth figure shows a conventional light guiding device, and a complex _ number is set on the side of the light guide plate having no optical structure. Schematic diagram of the light source. The fifth figure is a schematic diagram showing a conventional light guiding device, which is provided with a plurality of light sources on the side of the light guide plate having an optical structure. [Description of main components] Bu·· The optical plate structure 11 · 2 ···· 3 ···· •• optical film 31-8