M330483 【新型内容】 … 爰此，本創作係結合繞射及傳統之折射和反射光學 :原理，設計出一種複合式光學膜，以解決習知增亮膜之 缺點。 9 秦 . 本創作係為一種複合式光學膜，該複合式光學膜， •其係設有上表面及下表面’其中下表面係供光線進/， 而上表面則供光線射出，該複合式光學膜之上表面係設 修有複數個微結構，其中，該微結構其設有頂面，又頂面 周緣鄰接有繞射區，該繞射區係在一曲面範圍内呈多階 梯狀，各階梯係等高，該階梯係自頂面的頂點沿中心線 乂 至曲線兩端之端點取等高之等份。 ^ 上述之複合式光學膜，其中，該微結構係為半圓球 狀，該微結構之頂面為弧面，且其等高之階梯係沿球面 路徑，自頂面的頂點沿中心線至曲線兩端之端點取等高 之等份。 ”、、同 • 上述之複合式光學膜，其中，該微結構係為非半圓 -球狀，係為拋物面狀，其頂面為弧面，且其等高之階梯 係沿弧面路徑，自頂面的頂點沿中心線至曲線兩端2端 點取等高之等份。 上述之複合式光學膜，其中，該微結構係為平面階 梯式，其頂面為平面，且其等高之階梯係沿線性路徑， 自頂面的頂點沿中心線至曲線兩端之端點取等高之階 梯。 〇 本創作係為一種複合式光學膜，該複合式光學膜設 6 M330483 有上表面及下表面，其中下表面係供光線進入，而上表 面則供光線射出，該複合式光學膜之上表面係設有複數 .個Μ、纟β構，其中，該被結構其設有頂面，又頂面周緣鄰 •接有、、射區，δ亥繞射區係在一曲面範圍内呈多階梯狀， '各階梯係非等高，該階梯係自頂面的頂點沿中心線至曲 . 線兩端之端點取非等高之等份。 上述之複合式光學膜，其中，該微結構係為平面階 癱梯式，其頂面為平面，且其非等高之階梯係沿線性路徑’ 自頂面的頂點沿中心線至曲線兩端之端點取非等高之階 梯。 • 利用此複合式光學膜，背光模組之光源經擴散膜 .後，在光行進路徑中遇到複合式光學膜之多階梯阻礙， -此時，光的傳遞方向將不再只有原來的行進方向，而在 多階梯狀缺角邊緣的光會向四周擴散，在複合式光學膜 表面產生繞射現象，進而產生光暈之次要先線，而使^ 射光或發光源轉為均勻照射之散射光與反射光，俾使反 •射照射之光線角度形成良好之照射範圍，同時由於光線 在複合式光學膜多次繞射後，原先均勻擴散的型態改變 成類似光束般的集中射出，提供入射光或發光源照射， 維持良好之聚光亮度與散射光所構成之輝度，光線在複 合式光學膜繞射後，原先均勻擴散的型態改變成類似光 束般的集中射出。 本創作之優點如下： 1 ·本創作係以光學繞射及擴散條件原理，創作出複 7 M330483 —合式光學膜，利用此複合式光學膜，背光模組之光源經 擴散膜後，在光行進路徑中遇到複合式光學膜之多階梯 :阻礙，此時，光的傳遞方向將不再只有原來的行進方向， 而在多階梯狀缺角邊緣的光會向四周擴散，在複合式光 •學膜表面產生繞射現象，進而產生光暈之次要光線，而 .使入射光或出射光轉為均勻照射之散射光與反射光，俾 使反射照射之光線角度形成良好之照射範圍，進而提升 _背光模組之光線均勻度。 2·光線在本創作之複合式光學膜多次繞射後，原先 均勻擴散的型態改變成類似光束般的集中射出，能夠有 -效提升光源集中力及整體亮度，降低光能量損失，以提 、升背光模組之亮度。 3·本創作係結合繞射及傳統之折射和反射光學元件 為一體’可有效消除反射性條紋，並改善色差、色散現 象，矯正球差。 φ ·【實施方式】 ' 本創作之第一實施例，如第一圖及第二圖所示，係 為一種複合式光學膜（1)，其係設有上表面（11)及下表 面（12)，其中下表面（12)係供光線進入，而上表面（u) 則供光線射出。 微結構（2)，係設置於複合式光學膜（〇之上表 面（11)上’該微結構（2 )係為半圓球狀，其設有頂面 (21 )，該頂面（21 )係設呈弧面，又頂面（21 )周緣 钟接有繞射區（2 2 )，該繞射區（2 2 )係在一曲面範圍 8 M330483 2呈夕^梯狀，各階梯（221 )係等高，其階梯（221)設 '方式係如第二圖所示，其等高之階梯（22。係沿球面 :路徑，自頂面（21)的頂點⑴沿中心線⑴至曲線 /兩端之端點（〇、⑴取等高之等份。 • 使用時係將本第一實施例之單一片複合式光學膜 • 1 )置於月光核組中’光在行進路徑中遇到複合式光學 、j 1 )之夕階梯（221)阻礙，此時，光的傳遞方向將不 籲再只有原來的行進方向，而在階梯（221)邊緣的光會向 四周擴散：在複合式光學膜⑴内部產生繞射現象，進 ^生光暈之次要光線，而使原始之光源轉為均勻照射 、之政射，與反射光，冑使反射照射之光線角度形成良好 • ，f =範圍，進而提升背光模組之光線均勻度，且光線 〜夕-人繞射後，原先均勻擴散的型態改變成類似光束般的 集2射出，旎夠有效提升光源集中力及整體亮度，降低 光此篁彳貝失，維持良好之聚光亮度與散射光所構成之輝 •度，以提升背光模組之亮度。 使用日守，亦可將如第四圖所示之兩片複合式光學膜 一（1)互相垂直交錯搭疊後置入背光模組中，如第五圖所 Λ “月光模組另包括有··導光板（3 )、複數點狀之光源 (4)、、反射片（5)與擴散膜（6)，其中導光板（3)中係包含 有入光面（31)、底面（32)、側面（33)及出光面（34)，並 於底面（32)上設有微結構（35)，又光源（4)則設置在導光 板（3)之一侧邊，光源（4)通常採用發光二極體，導光板 (3)的下方設置一反射片（5),導光板（3)之上方設置擴散 M330483M330483 [New Content] ... In this way, the author combines diffraction and conventional refraction and reflection optics: the principle of designing a composite optical film to solve the shortcomings of the conventional brightness enhancement film. 9 Qin. This creation is a composite optical film, which is provided with an upper surface and a lower surface, wherein the lower surface is for light to enter and the upper surface is for light to be emitted. The upper surface of the optical film is affixed with a plurality of microstructures, wherein the microstructure is provided with a top surface, and the periphery of the top surface is adjacent to the diffraction region, and the diffraction region is multi-stepped in a curved surface. Each step is of equal height, and the step is taken from the apex of the top surface along the center line 乂 to the end points of the two ends of the curve. The composite optical film described above, wherein the microstructure is semi-spherical, the top surface of the microstructure is a curved surface, and the steps of the contour are along a spherical path, from the apex of the top surface along the center line to the curve The endpoints of the two ends are equal parts of the contour. ", the same as the above composite optical film, wherein the microstructure is non-semi-spherical, spherical, parabolic, the top surface of the curved surface, and its contour is along the arc path, from The apex of the top surface takes an equal division of the height from the center line to the two ends of the two ends of the curve. The above composite optical film, wherein the microstructure is a planar stepped shape, the top surface of which is flat, and its contour is equal The stepped system is along a linear path, taking the step of the same height from the apex of the top surface along the center line to the end points of the two ends of the curve. The creation of the system is a composite optical film, the composite optical film is provided with 6 M330483 having an upper surface and a lower surface, wherein the lower surface is for light to enter, and the upper surface is for light to be emitted, and the upper surface of the composite optical film is provided with a plurality of Μ, 纟β structures, wherein the structure is provided with a top surface, The top perimeter is adjacent to and connected to the area, and the δHai diffraction area is multi-stepped in a curved surface. 'The steps are not equal. The step is from the top of the top surface along the center line to the curve. The ends of the ends of the line are unequal to the equal height. a film, wherein the microstructure is a planar step ladder, the top surface of which is a plane, and the non-equal step is along the linear path from the apex of the top surface along the center line to the end of the curved ends Step of the contour. • With this composite optical film, the light source of the backlight module passes through the diffusion film. After that, the multi-step obstruction of the composite optical film is encountered in the light path. - At this time, the direction of light transmission will not Only the original direction of travel, and the light at the edge of the multi-stepped corner will spread to the periphery, causing a diffraction phenomenon on the surface of the composite optical film, thereby generating a secondary line of halation, and making the light or source of illumination The scattered light and the reflected light are uniformly irradiated, so that the angle of the light of the anti-radiation illumination forms a good illumination range, and at the same time, since the light is repeatedly diffracted in the composite optical film, the originally uniformly diffused pattern is changed into a similar beam. The concentrated injection provides the incident light or the illumination source to maintain the brightness of the concentrated condensing brightness and the scattered light. After the light is diffracted by the composite optical film, the original uniformly diffused pattern changes to a similar The advantages of this creation are as follows: 1 · This creation creates a complex 7 M330483-fit optical film based on the principle of optical diffraction and diffusion conditions. With this composite optical film, the light source of the backlight module is diffused. After the film, a multi-step of the composite optical film is encountered in the path of light travel: obstruction, at this time, the direction of light transmission will no longer be only the original direction of travel, and the light at the edge of the multi-stepped corner will spread to the periphery. A diffraction phenomenon is generated on the surface of the composite optical film to generate a secondary light of the halo, and the incident light or the outgoing light is converted into a uniformly irradiated scattered light and reflected light, so that the angle of the reflected illumination light is formed. Good illumination range, and thus improve the uniformity of light in the backlight module. 2.·When the light is repeatedly diffracted by the composite optical film of the present creation, the original uniformly diffused pattern is changed into a beam-like concentrated emission, which can have - Improves the concentration of the light source and the overall brightness, reduces the loss of light energy, and raises and raises the brightness of the backlight module. 3. This creation combines diffraction and conventional refractive and reflective optics to effectively eliminate reflective streaks, improve chromatic aberration, dispersion, and correct spherical aberration. φ · [Embodiment] The first embodiment of the present invention, as shown in the first and second figures, is a composite optical film (1) provided with an upper surface (11) and a lower surface ( 12), wherein the lower surface (12) is for light to enter, and the upper surface (u) is for light to be emitted. The microstructure (2) is disposed on the composite optical film (the upper surface (11) of the crucible. The microstructure (2) is a semi-spherical shape, and is provided with a top surface (21), the top surface (21) The arcing surface is arranged, and the diffraction surface (2 2 ) is connected to the periphery of the top surface (21). The diffraction area (2 2 ) is in the shape of a curved surface 8 M330483 2, and each step (221) The system is contoured, and its step (221) is set to 'the mode is as shown in the second figure, and its height is stepped (22. along the spherical surface: path, from the apex of the top surface (21) (1) along the center line (1) to the curve / End points of both ends (〇, (1) take equal parts of the contour. • Use the single-chip composite optical film of the first embodiment in use. 1) Place the light in the moonlight core group. To the composite optics, the step (221) of the eve of the complex optics, at this time, the direction of light transmission will not appeal to the original direction of travel, and the light at the edge of the step (221) will spread to the periphery: in the composite The optical film (1) internally generates a diffraction phenomenon, and the secondary light of the halo is generated, and the original light source is converted into a uniform illumination, a political emission, a reflected light, and a reflected illumination. The angle of the light is well formed, and f = the range, which improves the uniformity of the light of the backlight module. After the light is diffracted, the original uniformly diffused pattern is changed into a beam-like set 2 shot, which is effective enough to improve. The concentration of the light source and the overall brightness reduce the loss of the light, maintain the brightness of the concentrated light and the scattered light to improve the brightness of the backlight module. The two composite optical films shown (1) are vertically interlaced and placed in the backlight module, as shown in the fifth figure. "The moonlight module further includes a light guide plate (3), a plurality of dots. a light source (4), a reflection sheet (5) and a diffusion film (6), wherein the light guide plate (3) includes a light incident surface (31), a bottom surface (32), a side surface (33), and a light exit surface (34). And a microstructure (35) is disposed on the bottom surface (32), and the light source (4) is disposed on one side of the light guide plate (3), and the light source (4) is usually a light-emitting diode, and the light guide plate (3) A reflection sheet (5) is disposed under the light guide plate, and a diffusion M330483 is disposed above the light guide plate (3)
(L) 中心線 (2a) 微結構 (21a) 頂面 (22a) 繞射區 (221a) 階梯 (2b) 微結構 (21b) 頂面 (22b) 繞射區 (221b) 階梯 (2c) 微結構 (21c) 頂面 (22c) 繞射區 (221c) 階梯 (2d) 微結構 (21d) 頂面 (22d) 繞射區 (221d) 階梯 (Bl) 頂點 (Cl) 端點 (Dl) 端點 (LI) 中心線 (B2) 頂點 (C2) 端點 (D2) 端點 (L2) 中心線 (B3) 頂點 (C3) 端點 (D3) 端點 (L3) 中心線 (B4) 頂點 (C4) 端點 (D4) 端點 (L4) 中心線 13(L) centerline (2a) microstructure (21a) top surface (22a) diffraction area (221a) step (2b) microstructure (21b) top surface (22b) diffraction area (221b) step (2c) microstructure (21c) Top surface (22c) Diffraction area (221c) Step (2d) Microstructure (21d) Top surface (22d) Diffraction area (221d) Step (Bl) Vertex (Cl) End point (Dl) End point ( LI) Centerline (B2) Vertex (C2) Endpoint (D2) Endpoint (L2) Centerline (B3) Vertex (C3) Endpoint (D3) Endpoint (L3) Centerline (B4) Vertex (C4) Point (D4) End Point (L4) Center Line 13