TWM595765U - Direct type backlight device - Google Patents
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Abstract
本創作揭露一種直下式背光裝置包含光源座及反射片體。光源座包含電路板、多個反射杯結構及多個發光單元。反射片體包含基材及設置於基材的多個反射層狀結構,基材包含多個反射區域,於各個反射區域中,多個反射層狀結構於反射區域的中心、反射區域的邊角處及反射區域的邊線處是相對密集地排列,各個反射層狀結構是用來反射發光單元所發出的光束。透過反射片體的設置,光源座所發出的光束通過反射片體後,可以更均勻地向外射出,而可改善習知直下式背光裝置所存在亮、暗區的品味問題,且亦可以滿足薄形化及降低發光單元的使用數量的需求。This creation discloses a direct type backlight device including a light source base and a reflective sheet body. The light source base includes a circuit board, multiple reflective cup structures and multiple light emitting units. The reflective sheet body includes a base material and a plurality of reflective layered structures disposed on the base material, the base material includes a plurality of reflective regions, and in each reflective region, a plurality of reflective layered structures are located at the center of the reflective region and the corners of the reflective region The edges of the reflection area and the reflection area are relatively densely arranged. Each reflection layer structure is used to reflect the light beam emitted by the light emitting unit. Through the setting of the reflective sheet body, the light beam emitted by the light source seat can be emitted more uniformly after passing through the reflective sheet body, which can improve the taste problem of the bright and dark areas in the conventional direct backlight device, and can also meet The need for thinning and reducing the number of light-emitting units used.
Description
本創作涉及一種背光裝置,特別是一種直下式背光裝置。This creation relates to a backlight device, especially a direct type backlight device.
現有車載顯示器的光源模組,大致可區分為側光式及直下式,直下式背光模組相對於側光式背光模組具有更好的影像表現,因此,直下式背光模組為近年來相關廠商主要開發的技術之一。然,現有的直下式背光模組容易發生各區域的亮度不一致的問題(即一般業界俗稱之品味問題)。The light source module of the existing vehicle-mounted display can be roughly divided into an edge light type and a direct type. The direct type backlight module has better image performance than the edge type type backlight module. Therefore, the direct type backlight module is related in recent years. One of the main technologies developed by the manufacturer. However, the existing direct type backlight module is prone to the problem of inconsistency of brightness in various areas (that is, the taste problem commonly known in the industry).
本創作公開一種直下式背光裝置,主要用以改善現有技術中,直下式背光裝置容易發生暗區、亮區的問題。The present invention discloses a direct-type backlight device, which is mainly used to improve the problems of dark areas and bright areas in direct-type backlight devices in the prior art.
本創作的其中一實施例公開一種直下式背光裝置,其包含:一光源座及一反射片體。光源座包含:一電路板、多個反射杯結構及多個發光單元。多個反射杯結構固定設置於電路板的一側,各個反射杯結構相反於電路板的一側內凹形成有一反射腔。多個發光單元,各個發光單元固定設置於電路板,且多個發光單元對應位於多個反射腔中。反射片體定義有多個反射區域,反射片體設置於光源座的上方,各個反射區域對應位於各個反射杯結構的正上方,且各個反射區域的中心對應位於發光單元的中心的上方。反射片體包含:一基材及多個反射層狀結構。多個反射層狀結構形成於基材的一寬側面,且多個反射層狀結構分布於多個反射區域內,各個反射層狀結構能反射光源座所發出的光束;於各個反射區域內的多個反射層狀結構,越鄰近於反射區域的中心越密集地排列,越鄰近於反射區域的邊線越密集地排列,越鄰近於反射區域的邊角越密集地排列;其中,形成各個反射腔的側壁為一反射面,各個反射腔的反射面,能反射相對應的發光單元所發出的部份光束。One embodiment of this creation discloses a direct-lit backlight device, which includes: a light source holder and a reflective sheet body. The light source base includes: a circuit board, multiple reflective cup structures and multiple light emitting units. A plurality of reflective cup structures are fixedly arranged on one side of the circuit board, and each reflective cup structure is concavely formed on a side opposite to the circuit board to form a reflective cavity. A plurality of light-emitting units, each light-emitting unit is fixedly disposed on the circuit board, and the plurality of light-emitting units are correspondingly located in a plurality of reflective cavities. The reflective sheet body defines a plurality of reflective regions, the reflective sheet body is disposed above the light source holder, each reflective region corresponds to directly above each reflective cup structure, and the center of each reflective region corresponds to above the center of the light emitting unit. The reflective sheet body includes: a substrate and a plurality of reflective layered structures. Multiple reflective layered structures are formed on a wide side of the substrate, and the multiple reflective layered structures are distributed in multiple reflective areas. Each reflective layered structure can reflect the light beam emitted by the light source holder; in each reflective area Multiple reflective layered structures are arranged denser as they are closer to the center of the reflective area, densely arranged as the edges of the reflective area are closer, and densely arranged as the corners are closer to the reflective area; wherein, each reflective cavity is formed The side wall is a reflective surface, and the reflective surfaces of each reflective cavity can reflect part of the light beam emitted by the corresponding light emitting unit.
本創作的其中一實施例公開一種直下式背光裝置,其包含:一光源座及一反射片體。光源座包含一電路板、多個反射杯結構及多個發光單元。多個反射杯結構固定設置於電路板的一側,各個反射杯結構相反於電路板的一側內凹形成有一反射腔。各個發光單元固定設置於電路板,且多個發光單元對應位於多個反射腔中。反射片體定義有多個反射區域,反射片體設置於光源座的上方,各個反射區域對應位於各個反射杯結構的正上方,且各個反射區域的中心對應位於發光單元的中心的上方。反射片體包含:一基材及一反射層。反射層形成於基材的一寬側面,反射層能反射光源座所發出的光束;反射層包含多個穿孔,各個穿孔貫穿反射層,而基材的一部份能通過多個穿孔外露;多個穿孔分布於多個反射區域內;於各個反射區域內的多個穿孔,越遠離於反射區域的中心越密集地排列,越遠離於反射區域的邊線越密集地排列,越遠離於反射區域的邊角越密集地排列;其中,形成各個反射腔的側壁為一反射面,各個反射腔的反射面,能反射相對應的發光單元所發出的部份光束。One embodiment of this creation discloses a direct-lit backlight device, which includes: a light source holder and a reflective sheet body. The light source base includes a circuit board, multiple reflective cup structures and multiple light emitting units. A plurality of reflective cup structures are fixedly arranged on one side of the circuit board, and each reflective cup structure is concavely formed on a side opposite to the circuit board to form a reflective cavity. Each light-emitting unit is fixedly disposed on the circuit board, and the multiple light-emitting units are correspondingly located in the multiple reflective cavities. The reflective sheet body defines a plurality of reflective regions, the reflective sheet body is disposed above the light source holder, each reflective region corresponds to directly above each reflective cup structure, and the center of each reflective region corresponds to above the center of the light emitting unit. The reflective sheet includes: a substrate and a reflective layer. The reflective layer is formed on a wide side of the substrate, the reflective layer can reflect the light beam emitted by the light source holder; the reflective layer includes a plurality of perforations, each perforation penetrates the reflective layer, and a part of the substrate can be exposed through the multiple perforations; The perforations are distributed in multiple reflective areas; the multiple perforations in each reflective area are arranged denser as they are farther away from the center of the reflective area, denserly arranged as they are farther away from the edge of the reflective area, and farther away from the reflective area The denser the corners are arranged; wherein, the side wall forming each reflection cavity is a reflection surface, and the reflection surface of each reflection cavity can reflect part of the light beam emitted by the corresponding light emitting unit.
綜上所述,本創作的直下式背光裝置相對於現有的直下式背光模組具有更好的出光均勻度,即,本創作的直下式背光裝置能大幅改善現有直下式背光模組所容易存在的明顯的暗區及亮區的問題。In summary, the direct-type backlight device of the present invention has better light uniformity compared with the existing direct-type backlight module, that is, the direct-type backlight device of the present invention can greatly improve the existing direct-type backlight module, which is easy to exist The problem of obvious dark and bright areas.
為能更進一步瞭解本創作的特徵及技術內容,請參閱以下有關本創作的詳細說明與附圖,但是此等說明與附圖僅用來說明本創作,而非對本創作的保護範圍作任何的限制。In order to understand the characteristics and technical content of this creation, please refer to the following detailed description and drawings of this creation, but these descriptions and drawings are only used to illustrate this creation, not to make any protection to this creation. limit.
於以下說明中,如有指出請參閱特定圖式或是如特定圖式所示,其僅是用以強調於後續說明中,所述及的相關內容大部份出現於該特定圖式中,但不限制該後續說明中僅可參考所述特定圖式。In the following description, if you are instructed to refer to a specific drawing or as shown in a specific drawing, it is only used to emphasize in the subsequent description, most of the related content mentioned in this specific drawing, However, it does not limit that only specific patterns can be referred to in the subsequent description.
請一併參閱圖1至圖5,圖1顯示為本創作的直下式背光裝置的第一實施例的側面示意圖,圖2顯示為本創作的直下式背光裝置的第一實施例的反射杯結構、發光單元及局部的反射片體的側面示意圖,圖3顯示為本創作的直下式背光裝置的第一實施例的反射杯結構的俯視示意圖,圖4為圖3的局部放大示意圖,圖5顯示為本創作的直下式背光裝置的第一實施例的單一個發光單元的立體示意圖。Please refer to FIG. 1 to FIG. 5 together. FIG. 1 shows a schematic side view of a first embodiment of a direct-type backlight device of the present invention, and FIG. 2 shows a reflective cup structure of a first embodiment of the direct-type backlight device of the present invention. 3, a schematic side view of a light-emitting unit and a partial reflective sheet body. FIG. 3 shows a top schematic view of the reflective cup structure of the first embodiment of the direct-lit backlight device of the present invention. FIG. 4 is a partial enlarged schematic view of FIG. This is a three-dimensional schematic diagram of a single light-emitting unit of the first embodiment of the direct-type backlight device created for this.
如圖1所示,本創作的直下式背光裝置100包含:一光源座1及一反射片體2。光源座1包含:一電路板11、多個反射杯結構12及多個發光單元13。多個反射杯結構12固定設置於電路板11的一側。多個反射杯結構12可以是彼此緊密地排列設置於電路板11上,即相鄰的兩個反射杯結構12之間可以是沒有間距地設置,但不以此為限。在特殊的應用中,彼此相鄰的兩個反射杯結構12也可以是具有經過適當設計(在不影響直下式背光裝置100整體的出光均勻度)的微小間距。如圖3及圖4所示,各個反射杯結構12於其上視圖中可以大致呈現為正方形狀,但不以此為限,各個反射杯結構12於其上視圖中所呈現的外型可以是依據需求變化,例如可以是矩形、圓形、橢圓形等。As shown in FIG. 1, the direct-
如圖1及圖2所示,各個反射杯結構12由遠離電路板11的一側向靠近電路板11的一側內凹形成有一反射腔121。反射腔121相反於電路板11的一側為一反射面122,反射面122的反射率可以是大於90%。反射杯結構12可以是由高反射率材料所製成,舉例來說可以是使用含有由氧化鈦、氧化鋁、氧化矽等金屬氧化物粒子構成的高反射材料的樹脂製作,但不以此為限;在不同的應用中,反射杯結構12可以是由不摻有高反射材料的樹脂製成,而反射腔121相反於電路板11的一側則設置(例如是以塗佈的方式)具有高反射率的層狀結構,而具有高反射率的層狀結構的一側即可對應形成為前述反射面122。在實際應用中,各個反射腔121的寬度W與高度H比可以是介於2:1至6:1,但不以此為限,反射腔121的尺寸及其外型可以是依據發光單元13的不同而對應改變。As shown in FIGS. 1 and 2, each
值得一提的是,在實際應用中,在反射腔121的側面示意圖(如圖1及圖2所示)中,各個反射腔121鄰近於電路板11的位置可以是具有一弧狀區段123,藉此,反射腔121將可以更有效地使發光單元13所發出的光束向反射片體2的方向反射。當然,在不同的實施例中,在反射腔121的側面示意圖中,反射腔121也可以是僅包含有直線區段而不包含有任何弧狀區段。It is worth mentioning that, in practical applications, in a schematic side view of the reflective cavity 121 (as shown in FIGS. 1 and 2 ), the position of each
如圖2及圖5所示,各個發光單元13固定設置於電路板11,且各個發光單元13對應位於各個反射腔121中,且各個發光單元13可以是對應位於反射腔121的中心且最低的位置。在實際應用中,反射杯結構12可以是包含有用來容置發光單元13的容槽124,而發光單元13則是對應設置於所述容槽124中。各個發光單元13具有一頂發光面13A及一環發光面13B,頂發光面13A的周緣與環發光面13B相連接,發光單元13由頂發光面13A發出的光束強度低於由環發光面13B發出的光束的強度。As shown in FIGS. 2 and 5, each light-
在實際應用中,各個發光單元13於正向0度的光強度可以是低於50%以下,光強度最大值則是落在-55°~-75°及55°~75°之間,而各個發光單元13的光形圖大致呈現為半心形;各個發光單元13的寬度W可以是介於0.1公釐(mm)至2公釐(mm),各個發光單元13的長度可以是介於0.1公釐(mm)至2公釐(mm),各個發光單元13的高度H可以是介於0.1公釐(mm)至1.7公釐(mm)。In practical applications, the light intensity of each light-
如圖5所示,在具體的實施中,各個發光單元13可以是包含一發光二極體131、一半反射件132及一透光體133。發光二極體131可以是矩形立方體,而發光二極體131具有一頂面1311及四個側面1312,頂面1311為發光二極體131相反於與電路板11相連接的一端面,四個側面1312則與頂面1311的周緣相連接。As shown in FIG. 5, in a specific implementation, each light-
半反射件132設置於發光二極體131的頂面1311,而通過頂面1311向外射出的部分光束,將被半反射件132反射,另一部分的光束則能通過半反射件132向外射出。在實際應用中,半反射件132可以是以塗佈的方式形成於發光二極體131的頂面1311,而半反射件132例如可以是由半透明狀的材料所製成;舉例來說,半反射件132可以是由厚度薄到可以使發光單元13所發出的光束直接穿過的反射材料所製成。在具體的應用中,半反射件132可以是由具有不同折射率的片體結構堆疊而成,例如是分佈式布拉格反射膜(Distributed Bragg Reflector)。The
透光體133包覆半反射件132及發光二極體131設置,透光體133的外型可以是大致呈現為矩形立方體,而透光體133的外圍對應形成有所述頂發光面13A及所述環發光面13B,頂發光面13A與頂面1311彼此相面對地設置,而發光二極體131所發出的光束將通過的透光體133向外射出。所述透光體133用以保護發光二極體131及半反射件132,以避免發光二極體131及半反射件132直接裸露而容易受損。在實際應用中,半反射件132例如可以是包含二氧化矽(SiO2)、二氧化鈦(TiO2)等反射粒子。The light-transmitting
在實際應用中,各個發光二極體131可以是依據需求發出不同波長的光束。在發光二極體131是發出波長460奈米至470奈米的藍光光束的實施例中,透光體133內可以是摻有一色轉換材料,色轉換材料例如可以是包含有磷光體、II-VI族半導體奈米晶體或III-V族半導體奈米晶體等材料,而發光二極體131所發出的藍光光束,通過透光體133內的色轉換材料後,將轉換為白光光束向外射出。另外,透光體133中也可以是設置有擴散粒子等,於此不加以限制。In practical applications, each light-
依上所述,透過上述半反射件132的設置,發光單元13由頂發光面13A向外射出的光束的光通量,將明顯低於發光單元13由環發光面13B向外射出的光束的光通量,從而可提升直下式背光裝置100所發出的光束的均勻度,而避免使用者容易直接觀察到來自於各個發光單元13的頂發光面13A所發出的光束所形成的光點的問題。也就是說,設置有半反射件132的直下式背光裝置100,相較於未設置有半反射件132的直下式背光裝置100,具有更好的出光均勻度,且更不容易被使用者觀察到明顯的光點。As described above, through the arrangement of the
值得一提的是,各個發光單元13的發光二極體131可以是覆晶封裝發光晶片(Flip chip),且各個發光單元13還可以是包含有一轉接板134。轉接板134包含絕緣結構及導電佈線結構,覆晶封裝發光晶片固定於轉接板134,且覆晶封裝發光晶片與導電佈線結構電性連通,而覆晶封裝發光晶片是通過轉接板134,固定於電路板11,且覆晶封裝發光晶片是通過轉接板134與電路板11電性連通,而電路板11是通過轉接板134傳遞電力及控制訊號至覆晶封裝發光晶片。It is worth mentioning that the light-emitting
透過上述轉接板134的設置,將可大幅降低覆晶封裝發光晶片在安裝於電路板11的過程中發生剝離(Peeling)的問題;更具體來說,在現有技術中,是直接將覆晶發光晶片固定於電路板11上,此種固定方式,在固定的過程中,覆晶發光晶片的電極結構,將容易直接受熱而膨脹,進而導致電極結構發生剝離(Peeling)的問題。相對地,若是使覆晶封裝發光晶片透過轉接板134固定於電路板11上,則在將發光單元13固定於電路板11的過程中,相關的熱能將不易直接傳遞至覆晶封裝發光晶片,而大部份的熱能會先被轉接板134吸收,藉此,覆晶封裝發光晶片將不容易發生上述剝離(Peeling)問題。Through the arrangement of the
特別強調的是,本創作的直下式背光裝置100所包含的各個發光單元13具體的種類、形式、所發出的光束波長等,皆不以上述說明為限,亦即,在不同的實施例中,本創作的直下式背光裝置100的各個發光單元13可以是一般常見的發光二極體,而其頂發光面可以是不設置有前述半反射件132。It is particularly emphasized that the specific types, forms, and wavelengths of light beams emitted by the light-emitting
請一併參閱圖1、圖2、圖6至圖8,圖6顯示為本創作的直下式背光裝置的第一實施例的反射片體的一側面的正視圖,圖7顯示本創作的直下式背光裝置的第一實施例的反射片體的單一個反射區域的正視圖,圖8顯示為本創作的直下式背光裝置的第一實施例的反射片體的立體示意圖。Please refer to FIG. 1, FIG. 2 and FIG. 6 to FIG. 8 together. FIG. 6 shows a front view of a side surface of the reflector body of the first embodiment of the direct-type backlight device of the creation, and FIG. 7 shows the direct-down of the creation A front view of a single reflective area of the reflective sheet body of the first embodiment of the backlight device of the first embodiment. FIG. 8 shows a schematic perspective view of the reflective sheet body of the first embodiment of the direct-lit backlight device of the present invention.
反射片體2設置於光源座1的上方。如圖1及圖2所示,在實際應用中,光源座1的各個反射杯結構12內凹形成有反射腔121的一側與所述反射片體2之間可以是形成有一間隙G,所述間隙G的距離P(如圖2所示)可以是不大於2公釐(mm),如此,各個發光單元13所發出的部分光束通過相對應的反射杯結構12反射後,一部分將可以照射到兩個反射杯結構12相連接的位置Q(如圖1所示),如此,可協助提升直下式背光裝置100的出光均勻度。也就是說,在反射片體2與光源座1之間形成有所述間隙G的實施例中,直下式背光裝置100的出光均勻度,將會高於在反射片體2與光源座1之間沒有形成間隙G的實施例中,直下式背光裝置100的出光均勻度。The
反射片體2包含:一基材21及多組反射層狀結構22。基材21彼此相反的兩個寬側面分別定義為一內側面211及一外側面212。在實際應用中,基材21的厚度可以是介於0.1公釐(mm)至2公釐(mm)。發光單元13所發出的光束,能由基材21未設置有反射層狀結構22的內側面211,穿過所述基材21,而由所述外側面212向外射出。基材21具體的材料及其包含的結構於此不加以限制,舉例來說,基材21可以是類似於擴散板(Diffuser)的結構,或者,基材21可以是由透明高分子材料製成,或者,基材21也可以是多層膜材料,或者,所述基材也可以是玻璃材質,於此不加以限制。The
基材21於內側面211定義有多個反射區域21A。當反射片體2固定設置於光源座1的上方時,基材21的內側面211是面對光源座1,且各個反射區域21A是對應位於各個反射杯結構12的正上方,且各個反射區域21A的中心對應位於發光單元13的頂發光面13A的中心的上方,更具體來說,各個反射區域21A的中心與發光單元13的頂發光面13A的中心是位於同一軸線上。The
在實際應用中,各個反射區域21A是對應落在各個反射杯結構12向反射片體2的方向的正投影的正投影區域內,或者,反射區域21A可以是等於各個反射杯結構12向反射片體2的方向的正投影的正投影區域;各個反射區域21A的中心是落在各個發光單元13向反射片體2的方向的正投影的正投影區域內。In practical applications, each
多個反射層狀結構22形成於基材21的內側面211,且多個反射層狀結構22分布於多個反射區域21A內,各個反射層狀結構22能反射光源座1所發出的光束,而被反射層狀結構22反射的至少一部分的光束,將回到所述反射腔121中,並通過反射腔121的反射後,再次向所述反射片體2的方向射出。A plurality of
如圖6及圖7所示,於各個反射區域21A內的多個反射層狀結構22的分布方式是:於各個反射區域21A內的多個反射層狀結構22,越鄰近於反射區域21A的中心越密集地排列,越鄰近於反射區域21A的邊線越密集地排列,越鄰近於反射區域21A的邊角越密集地排列。更具體來說,如圖7所示,其顯示為單一個所述反射區域21A的俯視圖,於該單一反射區域21A內的多個所述反射層狀結構22,在圖中所示中心圓圈區域A內、在圖中所示靠近所述反射區域21A的四個邊角的四個圓圈區域B內,以及在圖中所示四個長條區域C內皆是密集地排列,而發光單元13向反射區域21A發出的光束,在中心圓圈區域A、四個圓圈區域B及四個長條區域C的位置,將會被大量地反射回反射杯結構12。As shown in FIGS. 6 and 7, the distribution method of the plurality of reflective
請一併參閱圖4及圖7,在圖7中所示的中心圓圈區域A是對應位於反射杯結構12的發光單元13的正上方,且在圖7中所示的四個圓圈區域B是對應位於反射杯結構12的四個邊角處,而在圖7中所示的四個長條區域C,則是對應位於反射杯結構12邊界位置;如圖4所示,換句話說,彼此相鄰的兩個反射杯結構12相互連接的邊界位置的正上方的反射片體2是對應形成有較為密集的反射層狀結構22,彼此相鄰的兩個反射杯結構12相互連接的邊角位置的正上方的反射片體2是對應形成有較為密集的反射層狀結構22。Please refer to FIG. 4 and FIG. 7 together. The central circle area A shown in FIG. 7 corresponds to directly above the light-emitting
依上所述,透過使位於單一個反射區域21A內的多個反射層狀結構22,於發光單元13的正上方、反射杯結構12的四個邊線處的正上方及反射杯結構12的四個邊角處的正上方較為密集地排列的設計,將可以使發光單元13通過反射區域21A向外射出的光束更為均勻。As described above, by making the multiple reflective
更具體來說,若反射片體2的多個反射層狀結構22未依照前述分布狀態的設計,則發光單元13所發出的光束,在通過反射片體2向外射出時,使用者在反射片體2的外側面212的一側,將容易看到在各個發光單元13的正上方的光亮度、兩個相鄰的反射杯結構12的邊界處的光亮度、兩個相鄰的反射杯結構12的邊角處的光亮度,是明顯強於其他區域。反之,若反射片體2的多個反射層狀結構22依照前述分布狀態設置,則使用者在反射片體2的外側面212的一側,觀看反射片體2時,將可以看到反射片體2的各個區域的亮度是差不多亮。More specifically, if the plurality of
承上,在各個發光單元13未設置有前述半反射件132的實施例中,使用者於反射片體2的外側面212的一側觀看反射片體2時,將更清楚地看到位於發光單元13正上方的區域的亮度及位於相鄰的兩個反射杯結構12的四個交界處的亮度明顯高於其他區域;其中,位於發光單元13的正上方的區域的亮度較高是因為發光單元13指向性的關係,位於相鄰的兩個反射杯結構12的四個交界處的亮度較高是因為兩個反射杯結構12內的發光單元13所發出的光束會同時照射到四個交界處。As mentioned above, in the embodiment in which each light-emitting
如圖8所示,在具體的實施中,各個反射層狀結構22例如可以是通過油墨印刷、蒸鍍等方式形成於基材21,各個反射層狀結構22可以是包含有氧化鈦粒子、氧化鋁粒子、氧化矽粒子等高反射率的粒子的樹脂,或者,各個反射層狀結構22也可以是本身即由金屬粒子所組成。各個反射層狀結構22的外徑OD(如圖6所示)可以介於1微米(um)至500微米(um),較佳地,各個反射層狀結構22的外徑OD可以是介於30微米(um)至100微米(um)。各個反射層狀結構22的厚度D(如圖2所示)可以是介於0.05微米(um)至20微米(um)。As shown in FIG. 8, in a specific implementation, each reflective layered
依上所述,透過於光源座1的上方設置反射片體2,且使反射片體2面對光源座1的寬側面設置有多個反射層狀結構22的設計,以及使位於單一個反射區域21A內的多個反射層狀結構22在靠近反射區域21A的中心位置、靠近反射區域21A的邊角位置及靠近反射區域21A的邊線位置較為集中的設計,將可以使發光單元13由頂發光面13A所發出的大部分光束將被反射層狀結構22反射至反射腔121,發光單元13由環發光面13B所發出的大部分光束則是能通過基材21由外側面212向外射出,而發光單元13由環發光面13B所發出的少部分光束則是被反射層狀結構22反射至反射腔121。如此,將可大幅提升光源座1所發出的光束,通過反射片體2射出的出光均勻度。According to the above, the
請一併參閱圖9至圖11,圖9顯示為本創作的直下式背光裝置的第二實施例的反射片體的一側面的正視圖,圖10顯示為本創作的直下式背光裝置的第二實施例的反射片體的立體示意圖,圖11顯示本創作的直下式背光裝置的第二實施例的反射片體的單一個反射區域的正視圖。如圖9及圖10所示,本實施例與前述實施例最大不同之處在於:反射片體2的其中一個寬側面1312是形成有一反射層23,所述反射層23能反射光源座1所發出的光束。反射層23包含多個穿孔231,各個穿孔231貫穿反射層23,而基材21的一部份能通過多個穿孔231外露。多個穿孔231分布於多個反射區域21A內。Please refer to FIG. 9 to FIG. 11 together. FIG. 9 shows a front view of a side surface of the reflector body of the second embodiment of the direct-type backlight device of the present invention, and FIG. 10 shows the first view of the direct-type backlight device of the present invention. A schematic perspective view of the reflective sheet body of the second embodiment. FIG. 11 shows a front view of a single reflective area of the reflective sheet body of the second embodiment of the direct-type backlight device of the present invention. As shown in FIG. 9 and FIG. 10, the biggest difference between this embodiment and the previous embodiment is that one of the
如圖10所示,其顯示為單一個所述反射區域21A的俯視圖,於各個反射區域21A內的多個穿孔231,越遠離於反射區域21A的中心是越密集地排列,越遠離於反射區域21A的邊線是越密集地排列,越遠離於反射區域21A的邊角越密集地排列。多個穿孔231在圖10中所示中心圓圈區域A內、在圖中所示靠近所述反射區域21A的四個邊角的四個圓圈區域B內,以及在圖中所示四個長條區域C內皆是密集地排列,而發光單元13向反射區域21A發出的光束,在中心圓圈區域A、四個圓圈區域B及四個長條區域C的位置,將會被大量地反射回反射杯結構12。As shown in FIG. 10, which is shown as a top view of a single
依上所述,透過使位於單一個反射區域21A內的多個穿孔231,於發光單元13的正上方、反射杯結構12的四個邊線處的正上方及反射杯結構12的四個邊角處的正上方較為密集地排列的設計,將可以使發光單元13通過反射區域21A向外射出的光束更為均勻。As described above, by making the plurality of
如圖11所示,在實際應用中,反射層23可以是利用印刷、蒸鍍等方式形成於基材21的一寬側面,而相關用於印刷、蒸鍍的設備,則是直接於上述穿孔231的位置處,不進行印刷、蒸鍍作業,也就是說,前述穿孔231即為基材21未設置有反射層23的位置。As shown in FIG. 11, in practical applications, the
請一併參閱圖12及圖13,圖12顯示為本創作的直下式背光裝置的第三實施例的局部側面示意圖,圖13顯示為本創作的直下式背光裝置的第四實施例的局部側面示意圖。圖12所示的實施例與前述第一實施例最大不同之處在於:多個反射層狀結構22是設置於基材21的外側面212。圖13所示的實施例與前述第一實施例最大不同之處在於:基材21的內側面211及外側面212皆設置有多個反射層狀結構22。在圖12及圖13的實施例中,發光單元13所發出的光束將能穿過基材21,具體來說,發光單元13所發出的光束通過所述基材21的穿透率可以是大於80%。在具體的應用中,位於基材21的內側面211的反射層狀結構22的分布狀況,可以是不同於位於基材21的外側面212的反射層狀結構22的分布狀況。Please refer to FIG. 12 and FIG. 13 together. FIG. 12 shows a partial side view of a third embodiment of the direct-type backlight device of the present invention, and FIG. 13 shows a partial side view of the fourth embodiment of the direct-type backlight device of the present invention. Schematic. The embodiment shown in FIG. 12 is most different from the foregoing first embodiment in that a plurality of
請一併參閱圖14及圖15,圖14顯示為本創作的直下式背光裝置的第五實施例的局部側面示意圖,圖15顯示為本創作的直下式背光裝置的第六實施例的局部側面示意圖。圖14所示的實施例與前述第二實施例最大不同之處在於:反射層23是設置於基材21的外側面212。圖15所示的實施例與前述第二實施例最大不同之處在於:基材21的內側面211及外側面212皆設置有反射層23。在圖14及圖15的實施例中,發光單元13所發出的光束將能穿過基材21,具體來說,發光單元13所發出的光束通過所述基材21的穿透率可以是大於80%。在具體的應用中,位於基材21的內側面211的反射層狀結構22的分布狀況,可以是不同於位於基材21的外側面212的反射層狀結構22的分布狀況。Please refer to FIG. 14 and FIG. 15 together. FIG. 14 shows a partial side schematic view of the fifth embodiment of the direct-type backlight device of the original creation, and FIG. 15 shows a partial side view of the sixth embodiment of the direct-type backlight device of the original creation. Schematic. The biggest difference between the embodiment shown in FIG. 14 and the foregoing second embodiment is that the
以上所述僅為本創作的較佳可行實施例,非因此侷限本創作的專利範圍,故舉凡運用本創作說明書及圖式內容所做的等效技術變化,均包含於本創作的保護範圍內。The above is only the preferred and feasible embodiment of this creation, and does not limit the patent scope of this creation. Therefore, all equivalent technical changes made by using this creation description and graphic content are included in the protection scope of this creation. .
100:直下式背光裝置
1:光源座
11:電路板
12:反射杯結構
121:反射腔
122:反射面
123:弧狀區段
124:容槽
13:發光單元
13A:頂發光面
13B:環發光面
131:發光二極體
1311:頂面
1312:側面
132:半反射件
133:透光體
134:轉接板
2:反射片體
21:基材
211:內側面
212:外側面
21A:反射區域
22:反射層狀結構
23:反射層
231:穿孔
A:中心圓圈區域
B:圓圈區域
C:長條區域
D:厚度
G:間隙
P:距離
H:高度
OD:外徑
W:寬度
Q:位置
100: direct type backlight device
1: light source seat
11: Circuit board
12: Reflecting cup structure
121: reflective cavity
122: reflective surface
123: Arc section
124: container
13:
圖1顯示為本創作的直下式背光裝置的第一實施例的側面示意圖。FIG. 1 shows a schematic side view of a first embodiment of a direct-type backlight device of the present invention.
圖2顯示為本創作的直下式背光裝置的第一實施例的反射杯結構、發光單元及局部的反射片體的側面示意圖。FIG. 2 shows a schematic side view of a reflective cup structure, a light emitting unit, and a partial reflective sheet body of the first embodiment of the direct-type backlight device of the present invention.
圖3顯示為本創作的直下式背光裝置的第一實施例的反射杯結構的俯視示意圖。FIG. 3 shows a schematic top view of the reflective cup structure of the first embodiment of the direct-lit backlight device of the present invention.
圖4為圖3的局部放大示意圖。FIG. 4 is a partially enlarged schematic diagram of FIG. 3.
圖5顯示為本創作的直下式背光裝置的第一實施例的單一個發光單元的立體示意圖。FIG. 5 shows a schematic perspective view of a single light-emitting unit of the first embodiment of the direct-type backlight device of the present invention.
圖6顯示為本創作的直下式背光裝置的第一實施例的反射片體的一側面的正視圖。FIG. 6 shows a front view of one side of the reflective sheet body of the first embodiment of the direct-type backlight device of the present invention.
圖7顯示本創作的直下式背光裝置的第一實施例的反射片體的單一個反射區域的正視圖。7 shows a front view of a single reflection area of the reflection sheet body of the first embodiment of the direct-type backlight device of the present invention.
圖8顯示為本創作的直下式背光裝置的第一實施例的反射片體的立體示意圖。FIG. 8 shows a perspective schematic view of the reflective sheet body of the first embodiment of the direct-type backlight device of the present invention.
圖9顯示為本創作的直下式背光裝置的第二實施例的反射片體的一側面的正視圖。FIG. 9 shows a front view of a side surface of the reflective sheet body of the second embodiment of the direct-type backlight device of the present invention.
圖10顯示為本創作的直下式背光裝置的第二實施例的反射片體的立體示意圖。FIG. 10 is a schematic perspective view of a reflective sheet of a second embodiment of a direct-type backlight device of the present invention.
圖11顯示本創作的直下式背光裝置的第二實施例的反射片體的單一個反射區域的正視圖。FIG. 11 shows a front view of a single reflection area of the reflection sheet body of the second embodiment of the direct-type backlight device of the present invention.
圖12顯示為本創作的直下式背光裝置的第三實施例的側面示意圖。FIG. 12 shows a schematic side view of a third embodiment of the direct-type backlight device of the present invention.
圖13顯示為本創作的直下式背光裝置的第四實施例的側面示意圖。FIG. 13 shows a schematic side view of the fourth embodiment of the direct-type backlight device of the present invention.
圖14顯示為本創作的直下式背光裝置的第五實施例的側面示意圖。FIG. 14 shows a schematic side view of a fifth embodiment of the direct-type backlight device of the present invention.
圖15顯示為本創作的直下式背光裝置的第六實施例的側面示意圖。FIG. 15 shows a schematic side view of the sixth embodiment of the direct-type backlight device of the present invention.
1:光源座 1: light source seat
11:電路板 11: Circuit board
12:反射杯結構 12: Reflecting cup structure
121:反射腔 121: reflective cavity
122:反射面 122: reflective surface
123:弧狀區段 123: Arc section
124:容槽 124: container
13:發光單元 13: Light emitting unit
13A:頂發光面 13A: Top light emitting surface
13B:環發光面 13B: Ring light emitting surface
131:發光二極體 131: Light emitting diode
132:半反射件 132: Semi-reflective parts
133:透光體 133: Translucent body
2:反射片體 2: reflective sheet
21:基材 21: substrate
211:內側面 211: Inner side
212:外側面 212: Outer side
22:反射層狀結構 22: reflective layered structure
D:厚度 D: thickness
G:間隙 G: gap
P:距離 P: distance
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW109200858U TWM595765U (en) | 2020-01-20 | 2020-01-20 | Direct type backlight device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW109200858U TWM595765U (en) | 2020-01-20 | 2020-01-20 | Direct type backlight device |
Publications (1)
Publication Number | Publication Date |
---|---|
TWM595765U true TWM595765U (en) | 2020-05-21 |
Family
ID=71897701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW109200858U TWM595765U (en) | 2020-01-20 | 2020-01-20 | Direct type backlight device |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWM595765U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112578598A (en) * | 2020-12-14 | 2021-03-30 | 业成科技(成都)有限公司 | Direct type backlight device |
TWI765554B (en) * | 2021-02-01 | 2022-05-21 | 云光科技股份有限公司 | Backlight device |
-
2020
- 2020-01-20 TW TW109200858U patent/TWM595765U/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112578598A (en) * | 2020-12-14 | 2021-03-30 | 业成科技(成都)有限公司 | Direct type backlight device |
CN112578598B (en) * | 2020-12-14 | 2022-10-18 | 业成科技(成都)有限公司 | Direct type backlight device |
TWI765554B (en) * | 2021-02-01 | 2022-05-21 | 云光科技股份有限公司 | Backlight device |
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