TWI761271B - Reflective structure - Google Patents

Reflective structure Download PDF

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TWI761271B
TWI761271B TW110128233A TW110128233A TWI761271B TW I761271 B TWI761271 B TW I761271B TW 110128233 A TW110128233 A TW 110128233A TW 110128233 A TW110128233 A TW 110128233A TW I761271 B TWI761271 B TW I761271B
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Taiwan
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reflectors
light
emitting element
reference axis
reflector
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TW110128233A
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Chinese (zh)
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TW202305281A (en
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李佳安
林冠亨
陳奕宏
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友達光電股份有限公司
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Priority to CN202210016863.2A priority patent/CN114321838B/en
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Publication of TW202305281A publication Critical patent/TW202305281A/en

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Abstract

A reflection structure includes a substrate, a light-emitting element, two first reflectors and two second reflectors. The light-emitting element is arranged on the substrate, and the virtual reference axis is parallel to the substrate and passes through the center of the light-emitting element. The two first reflectors are respectively arranged on opposite sides of the light-emitting element and perpendicular to the reference axis. The two second reflectors are respectively arranged on the other two opposite sides of the light-emitting element and the axis of the second reflector extending along the longitudinal direction is clamped 15 to 75 degrees with the reference axis.

Description

反射結構reflective structure

一種反射結構，尤其是發光面板的反射結構。A reflective structure, especially a reflective structure of a light-emitting panel.

發光面板隨著不同場合、狀態的應用，會需要特定的光場分佈，例如車用的發光面板，因應駕駛座及副駕駛座的特定角度，必須將發光面板的光場集中在發光面板的左右兩側，以增加駕駛座及副駕駛座的使用者的可視度，然而車用的發光面板往往在朝向車輛前擋風鏡的一側及相對的下方側產生光場損失的問題。With the application of different occasions and states, the light-emitting panel will require a specific light field distribution. For example, the light-emitting panel for vehicles, according to the specific angle of the driver's seat and the passenger seat, the light field of the light-emitting panel must be concentrated on the left and right of the light-emitting panel. In order to increase the visibility of users in the driver's seat and the passenger's seat, the light-emitting panels for vehicles often cause the problem of light field loss on the side facing the front windshield of the vehicle and the opposite lower side.

有鑑於此，提供一種反射結構，包括基板、發光元件、二第一反射器及二第二反射器。發光元件設於基板，且虛擬之參考軸係平行基板並穿過發光元件之中心。二第一反射器分別設於發光元件相對兩側並垂直於參考軸。二第二反射器分別設於發光元件相對的另外兩側且二第二反射器沿著長邊方向延伸之軸與參考軸夾15至75度。In view of this, a reflection structure is provided, which includes a substrate, a light-emitting element, two first reflectors and two second reflectors. The light-emitting element is arranged on the substrate, and the virtual reference axis is parallel to the substrate and passes through the center of the light-emitting element. The two first reflectors are respectively disposed on opposite sides of the light-emitting element and perpendicular to the reference axis. The two second reflectors are respectively disposed on the other two opposite sides of the light-emitting element, and the axis extending along the longitudinal direction of the two second reflectors and the reference axis are sandwiched by 15 to 75 degrees.

根據一些實施例，二第二反射器沿著長邊方向延伸之軸與參考軸的夾角為45度。According to some embodiments, the included angle between the axes extending along the longitudinal direction of the two second reflectors and the reference axis is 45 degrees.

根據一些實施例，二第一反射器分別具有第一反射面，第一反射面與基板之間的夾角為10至80度，二第二反射器分別具有第二反射面，第二反射面與基板之間的夾角為10至80度。According to some embodiments, the two first reflectors respectively have first reflecting surfaces, the angle between the first reflecting surfaces and the substrate is 10 to 80 degrees, and the two second reflectors respectively have second reflecting surfaces, the second reflecting surfaces and The angle between the substrates is 10 to 80 degrees.

根據一些實施例，二第一反射器分別具有第一高度，第一高度為5至20um，二第二反射器分別具有第二高度，第二高度為5至20um。According to some embodiments, the two first reflectors respectively have a first height, and the first height is 5 to 20 um, and the two second reflectors respectively have a second height, and the second height is 5 to 20 um.

根據一些實施例，第一高度為20um，第二高度為20um。According to some embodiments, the first height is 20um and the second height is 20um.

根據一些實施例，第一高度與第二高度為不同的高度。According to some embodiments, the first height and the second height are different heights.

根據一些實施例，二第二反射器沿著長邊方向延伸之軸相對於參考軸的夾角彼此間具有夾角差值，夾角差值介於正負30度之間。According to some embodiments, the included angles of the axes of the two second reflectors extending along the longitudinal direction relative to the reference axis have an included angle difference between each other, and the included angle difference is between plus or minus 30 degrees.

根據一些實施例，二第二反射器彼此相互平行。According to some embodiments, the two second reflectors are parallel to each other.

根據一些實施例，二第一反射器與二第二反射器相互不連接。According to some embodiments, the two first reflectors and the two second reflectors are not connected to each other.

根據一些實施例，包括另外一發光元件、另外一第一反射器及另外二第二反射器，另一發光元件沿參考軸設置於二第一反射器的其中之一且相對於發光元件的另一側，另外一第一反射器沿著參考軸排列，位於另一發光元件未設置第一反射器的一側，並與二第一反射器彼此相互呈平行，另外二第二反射器分別設於另一發光元件相對於第一反射器及另外一第一反射器的另外兩側，且另外二第二反射器沿著長邊方向延伸之軸及參考軸之間的夾角，與二第二反射器沿著長邊方向延伸之軸及參考軸之間的夾角相同。According to some embodiments, another light-emitting element, another first reflector, and another two second reflectors are included, and the other light-emitting element is disposed along a reference axis on one of the two first reflectors and is opposite to the other one of the light-emitting elements. On one side, another first reflector is arranged along the reference axis, located on the side of the other light-emitting element without the first reflector, and is parallel to each other with the two first reflectors, and the other two second reflectors are respectively set. On the other two sides of the other light-emitting element relative to the first reflector and the other first reflector, and the included angle between the axes extending along the longitudinal direction of the other two second reflectors and the reference axis, and the two second reflectors The angle between the axis extending along the longitudinal direction of the reflector and the reference axis is the same.

綜上所述，提供一種反射結構，藉由二第一反射器將發光元件的光線反射並向使用者側出光，以避免射向二第一反射器側的光線分散，另外亦藉由二第二反射器分別將朝向二第二反射器側的光線反射並向使用者側出光，以避免光線從二第二反射器處散發而造成光線損失。To sum up, a reflection structure is provided. The light from the light-emitting element is reflected by the two first reflectors and emitted to the user side, so as to avoid the dispersion of the light emitted to the side of the two first reflectors. The two reflectors respectively reflect the light toward the side of the two second reflectors and emit the light to the user side, so as to avoid light loss caused by the light emitted from the two second reflectors.

請參閱圖1及圖2。圖1為根據一第一實施例反射結構之立體示意圖。圖2為根據一第一實施例反射結構之俯視圖。反射結構100，包括基板10、發光元件30、二第一反射器50A、50B及二第二反射器70A、70B。反射結構100可以應用於發光面板，例如車用螢幕的發光面板。Please refer to Figure 1 and Figure 2. FIG. 1 is a three-dimensional schematic diagram of a reflection structure according to a first embodiment. FIG. 2 is a top view of a reflective structure according to a first embodiment. The reflection structure 100 includes a substrate 10 , a light-emitting element 30 , two first reflectors 50A, 50B and two second reflectors 70A, 70B. The reflective structure 100 can be applied to a light-emitting panel, such as a light-emitting panel of a car screen.

發光元件30設於基板10，且虛擬之參考軸A係平行基板10並穿過發光元件30之中心。在第一實施例中，發光元件30例如為LED或micro-LED。如圖2所示，在第一實施例中，發光元件30所產生的光線分別朝向發光元件30的上下側及左右側射出。The light-emitting element 30 is disposed on the substrate 10 , and the virtual reference axis A is parallel to the substrate 10 and passes through the center of the light-emitting element 30 . In the first embodiment, the light-emitting element 30 is, for example, an LED or a micro-LED. As shown in FIG. 2 , in the first embodiment, the light generated by the light emitting element 30 is emitted toward the upper and lower sides and the left and right sides of the light emitting element 30 respectively.

二第一反射器50A、50B分別設於發光元件30相對兩側並垂直於參考軸A。二第二反射器70A、70B分別設於發光元件30相對的另外兩側並與參考軸夾15至75度。在第一實施例中，垂直於參考軸A的二第一反射器50A、50B，可以集中發光元件30朝向左右側射出的光線並提高可視度。在第一實施例中，二第一反射器50A、50B分別將發光元件30朝左右兩側射出的光線反射集中並朝向使用者側出光（圖1所示的上方或圖2所示射出紙面的方向），第二反射器70A將發光元件30朝上側的光線反射並導向發光元件30的左側而朝位於側邊的使用者側出光，第二反射器70B將發光元件30朝下側的光線反射並導向發光元件30的右側而朝位於側邊的使用者側出光。The two first reflectors 50A and 50B are respectively disposed on opposite sides of the light-emitting element 30 and are perpendicular to the reference axis A. As shown in FIG. The two second reflectors 70A and 70B are respectively disposed on the other two opposite sides of the light-emitting element 30 and clamped at 15 to 75 degrees with respect to the reference axis. In the first embodiment, the two first reflectors 50A, 50B perpendicular to the reference axis A can concentrate the light emitted from the light-emitting element 30 toward the left and right sides and improve the visibility. In the first embodiment, the two first reflectors 50A and 50B respectively reflect and concentrate the light emitted from the light-emitting element 30 toward the left and right sides and emit light toward the user side (the upper part shown in FIG. direction), the second reflector 70A reflects the light from the light-emitting element 30 toward the upper side and guides it to the left side of the light-emitting element 30 to emit light toward the side of the user, and the second reflector 70B reflects the light from the light-emitting element 30 toward the lower side. And guide the light-emitting element 30 to the right side to emit light toward the user side located on the side.

具體來說，第一實施例的反射結構100是應用於車用螢幕的發光面板，一般來說，車用螢幕會設置於駕駛座及副駕駛座之間，然而發光面板向上側（例如朝向擋風玻璃側）的光容易照向擋風玻璃產生反光而影響可視度，朝向下側的光則容易造成光線的損失，而為了將發光面板產生的光線有效利用，避免光線的損失，反射結構100藉由二第一反射器50A、50B將發光元件30射向二第一反射器50A、50B側的光線反射並分別朝向使用者（即駕駛座及副駕駛座）側出光，以避免射向二第一反射器50A、50B側的光線分散，另外亦藉由二第二反射器70A、70B分別將射向二第二反射器70A、70B側的光線反射並朝向位於側邊的使用者側出光，以避免光線從二第二反射器70A、70B處散發而造成光線損失。Specifically, the reflective structure 100 of the first embodiment is a light-emitting panel applied to a car screen. Generally speaking, the car screen is arranged between the driver's seat and the passenger's seat, but the light-emitting panel faces upwards (for example, toward the shield). The light on the windshield side) is easy to reflect on the windshield and affect the visibility, and the light facing the lower side is easy to cause the loss of light. In order to effectively utilize the light generated by the light-emitting panel and avoid the loss of light, the reflective structure 100 uses The two first reflectors 50A and 50B reflect the light emitted by the light-emitting element 30 toward the two first reflectors 50A and 50B and emit light toward the side of the user (ie, the driver's seat and the passenger seat), respectively, so as to avoid being emitted toward the second and second reflectors 50A and 50B. The light on the side of a reflector 50A, 50B is dispersed, and the light directed to the side of the two second reflectors 70A, 70B is also reflected by the two second reflectors 70A, 70B respectively, and the light is emitted toward the user side located on the side, In order to avoid the loss of light caused by light emitted from the two second reflectors 70A and 70B.

在第一實施例中，二第二反射器70A、70B沿長邊方向延伸之軸與參考軸A的夾角α為15至75度，而較佳的夾角α為45度。如圖2所示，具體來說，二第二反射器70A、70B以長邊方向延伸之軸與參考軸A相交並呈夾角α。如圖2所示，藉由二第二反射器70A、70B將發光元件30朝向二第二反射器70A、70B側射出的光線導向至發光元件30的左右側。In the first embodiment, the included angle α between the axes extending along the longitudinal direction of the two second reflectors 70A, 70B and the reference axis A is 15 to 75 degrees, and the preferred included angle α is 45 degrees. As shown in FIG. 2 , specifically, the axes extending in the longitudinal direction of the two second reflectors 70A and 70B intersect the reference axis A and form an included angle α. As shown in FIG. 2 , the light emitted from the light emitting element 30 toward the two second reflectors 70A and 70B is guided to the left and right sides of the light emitting element 30 by the two second reflectors 70A and 70B.

請參閱圖3及圖4。圖3為根據圖1中標號3所示方向之第一反射器示意圖。圖4為根據圖1中標號4所示方向之第二反射器示意圖。如圖3所示，在第一實施例中，二第一反射器50A、50B分別具有第一反射面51A、51B，第一反射面51A、51B與基板10之間的夾角β為10至80度。在第一實施例中，二第一反射器50A、50B的側視面例如為梯形之形狀但不以此為限，亦可視第一反射面51A、51B與基板10之間的夾角β大小之改變而為三角形。具體來說，發光元件30向左右側射出的光線，分別經由第一反射面51A、51B反射並集中出光，以提高發光面板的出光效率，而第一反射面51A、51B與基板10之間的夾角β較佳為30度。Please refer to Figure 3 and Figure 4. FIG. 3 is a schematic diagram of the first reflector according to the direction indicated by the reference numeral 3 in FIG. 1 . FIG. 4 is a schematic diagram of the second reflector according to the direction indicated by the reference numeral 4 in FIG. 1 . As shown in FIG. 3 , in the first embodiment, the two first reflectors 50A and 50B respectively have first reflecting surfaces 51A and 51B, and the included angle β between the first reflecting surfaces 51A and 51B and the substrate 10 is 10 to 80 Spend. In the first embodiment, the side view surfaces of the two first reflectors 50A and 50B are, for example, but not limited to a trapezoid shape. change to a triangle. Specifically, the light emitted from the light-emitting element 30 to the left and right is reflected and concentrated by the first reflecting surfaces 51A and 51B respectively, so as to improve the light-extraction efficiency of the light-emitting panel. The included angle β is preferably 30 degrees.

如圖4所示，二第二反射器70A、70B分別具有第二反射面71A、71B，第二反射面71A、71B與基板10之間的夾角γ為10至80度。在第一實施例中，二第二反射器70A、70B的側視面例如為梯形之形狀但不以此為限，亦可視第二反射面71A、71B與基板10之間的夾角γ大小之改變而為三角形。具體來說，發光元件30向上下側射出的光線，分別經由第二反射面71A、71B反射並集中導向發光元件30的左右兩側出光，透過利用發光元件30上下側的出光，增加發光元件30左右側的出光效率，而第二反射面71A、71B與基板10之間的夾角 γ 較佳為80度。As shown in FIG. 4 , the two second reflectors 70A and 70B respectively have second reflection surfaces 71A and 71B, and the included angle γ between the second reflection surfaces 71A and 71B and the substrate 10 is 10 to 80 degrees. In the first embodiment, the side view surfaces of the two second reflectors 70A, 70B are, for example, trapezoidal shapes, but not limited to this. change to a triangle. Specifically, the light emitted from the upper and lower sides of the light-emitting element 30 is respectively reflected by the second reflecting surfaces 71A and 71B and concentrated to the left and right sides of the light-emitting element 30 to emit light. For the light extraction efficiency of the left and right sides, the included angle γ between the second reflecting surfaces 71A, 71B and the substrate 10 is preferably 80 degrees.

再次參閱圖3及圖4，在第一實施例中，二第一反射器50A、50B分別具有第一高度H1，第一高度H1為5至20um。也就是說，二第一反射器50A、50B可以藉由調整高度，以調整二第一反射器50A、50B的出光效率，而第一高度H1較佳的高度為20um。二第二反射器70A、70B分別具有第二高度H2，第二高度H2為5至20um。也就是說，二第二反射器70A、70B亦可以藉由調整高度，以調整二第二反射器70A、70B的出光效率，而第二高度H2較佳的高度為20um。在第一實施例中，二第一反射器50A、50B及二第二反射器70A、70B的高度越高，出光效率則越高。在其他實施態樣中，第一高度H1與第二高度H2亦可以為不同的高度。Referring to FIG. 3 and FIG. 4 again, in the first embodiment, the two first reflectors 50A and 50B respectively have a first height H1 , and the first height H1 is 5 to 20 um. That is to say, the heights of the two first reflectors 50A and 50B can be adjusted to adjust the light extraction efficiency of the two first reflectors 50A and 50B, and the preferred height of the first height H1 is 20um. The two second reflectors 70A, 70B respectively have a second height H2, and the second height H2 is 5 to 20 um. That is to say, the heights of the two second reflectors 70A and 70B can also be adjusted to adjust the light extraction efficiency of the two second reflectors 70A and 70B, and the preferred height of the second height H2 is 20um. In the first embodiment, the higher the heights of the two first reflectors 50A, 50B and the two second reflectors 70A, 70B, the higher the light extraction efficiency. In other embodiments, the first height H1 and the second height H2 may also be different heights.

如圖2所示，在第一實施例中，二第一反射器50A、50B與二第二反射器70A、70B相互不連接。具體來說，二第一反射器50A、50B及二第二反射器70A、70B是以不同程序的製程製作而成，故二第一反射器50A、50B與二第二反射器70A、70B之間會具有一定的間隔。As shown in FIG. 2 , in the first embodiment, the two first reflectors 50A, 50B and the two second reflectors 70A, 70B are not connected to each other. Specifically, the two first reflectors 50A, 50B and the two second reflectors 70A, 70B are fabricated in different processes, so the two first reflectors 50A, 50B and the two second reflectors 70A, 70B There will be a certain interval between them.

請再次參閱圖2。在第一實施例中，包括另外一發光元件30'、另外一第一反射器50'及另外二第二反射器70A'、70B'。另一發光元件30'沿參考軸A設置於二第一反射器50A、50B的其中之一且相對於發光元件30的另一側。另外一第一反射器50'沿著參考軸A排列，位於另一發光元件30'未設置反射器的一側，並與二第一反射器50A、50B彼此相互呈平行，另外二第二反射器70A'、70B'分別設於另一發光元件30'相對於第一反射器及另外一第一反射器50'的另外兩側，且另外二第二反射器70A'、70B'沿著長邊方向延伸之軸及參考軸A之間的夾角δ，與二第二反射器70A、70B沿著長邊方向延伸之軸及參考軸A之間的夾角α相同。如圖2所示，在第一實施例中，另一發光元件30'沿參考軸A設置於第一反射器50B相對於發光元件30的另一側，即圖面上所示位於第一反射器50B的右側。而另外一第一反射器50'沿著參考軸A排列，位於另一發光元件30'的右側。具體來說，反射結構100可以根據此排列規則，延伸形成多組反射結構100。See Figure 2 again. In the first embodiment, another light-emitting element 30', another first reflector 50' and another two second reflectors 70A' and 70B' are included. Another light-emitting element 30 ′ is disposed along the reference axis A on one of the two first reflectors 50A and 50B and is opposite to the other side of the light-emitting element 30 . Another first reflector 50' is arranged along the reference axis A, is located on the side of the other light-emitting element 30' without the reflector, and is parallel to the two first reflectors 50A, 50B, and the other two second reflectors The reflectors 70A', 70B' are respectively disposed on the other two sides of the other light-emitting element 30' relative to the first reflector and the other first reflector 50', and the other two second reflectors 70A', 70B' are along the length of the The angle δ between the axis extending in the side direction and the reference axis A is the same as the angle α between the axis extending along the longitudinal direction and the reference axis A of the two second reflectors 70A and 70B. As shown in FIG. 2 , in the first embodiment, another light-emitting element 30 ′ is disposed on the other side of the first reflector 50B relative to the light-emitting element 30 along the reference axis A, that is, it is located on the first reflector as shown in the drawing. the right side of the device 50B. Another first reflector 50 ′ is arranged along the reference axis A and is located on the right side of the other light-emitting element 30 ′. Specifically, the reflective structures 100 can be extended to form multiple groups of reflective structures 100 according to the arrangement rule.

再次參閱圖2，在第一實施例中，多組反射結構亦可以朝向垂直於參考軸A的方向延伸。反射結構100更包括參考軸B，參考軸B垂直於參考軸A。具體來說，二第一反射器50A、50B沿著參考軸B的方向延伸伸長，發光元件30"沿參考軸B設置於第二反射器70B相對於發光元件30的另一側，例如圖面所示第二反射器70B的下方側。而位於發光元件30''未設置反射器的一側，即發光元件30''的下方側，則可再設置有第二反射器70''。也就是說，反射結構100可以沿著參考軸A延伸設置多組，亦可以沿著參考軸B延伸設置多組，形成多排多列的反射結構100，以根據使用情況，提升發光面板的出光效率。Referring to FIG. 2 again, in the first embodiment, the plurality of groups of reflective structures may also extend in a direction perpendicular to the reference axis A. As shown in FIG. The reflection structure 100 further includes a reference axis B, and the reference axis B is perpendicular to the reference axis A. As shown in FIG. Specifically, the two first reflectors 50A and 50B extend along the direction of the reference axis B, and the light emitting element 30 ″ is disposed on the other side of the second reflector 70B relative to the light emitting element 30 along the reference axis B, such as the drawing surface The lower side of the second reflector 70B is shown. On the side of the light-emitting element 30'' without the reflector, that is, the lower side of the light-emitting element 30'', a second reflector 70'' can be provided. That is to say, the reflective structures 100 can be extended in multiple groups along the reference axis A, and can also be extended in multiple groups along the reference axis B to form multiple rows and multiple columns of the reflective structures 100, so as to improve the light extraction efficiency of the light-emitting panel according to the usage conditions .

如圖2所示，在第一實施例中，二第二反射器70A、70B彼此相互平行但不以此為限。請參閱圖5。圖5為根據一第二實施例反射結構之俯視圖。在第二實施例中，二第二反射器70A、70B沿著長邊延伸之軸相對於參考軸A的夾角α1、α2彼此間具有夾角差值，夾角差值介於正負30度之間。具體來說，位於發光元件30上側的第二反射器70A沿著長邊方向延伸之軸相對於參考軸A的夾角α1及位於發光元件30下側的第二反射器70B沿著長邊方向延伸之軸相對於參考軸A的夾角α2不同，而夾角α1與夾角α2的夾角差值介於正負30度，例如夾角α1為30度，夾角α2為45度，夾角α1與夾角α2的夾角差值即為15度。也就是可以根據發光面板的結構或使用情況，分別調整二第二反射器70A、70B的角度。As shown in FIG. 2 , in the first embodiment, the two second reflectors 70A and 70B are parallel to each other but not limited thereto. See Figure 5. FIG. 5 is a top view of a reflection structure according to a second embodiment. In the second embodiment, the included angles α1 and α2 of the axes extending along the long sides of the two second reflectors 70A and 70B relative to the reference axis A have an included angle difference between plus or minus 30 degrees. Specifically, the axis of the second reflector 70A located on the upper side of the light-emitting element 30 extends along the longitudinal direction at an angle α1 relative to the reference axis A, and the second reflector 70B located on the lower side of the light-emitting element 30 extends along the longitudinal direction. The angle α2 of the axis relative to the reference axis A is different, and the angle difference between the angle α1 and the angle α2 is plus or minus 30 degrees, for example, the angle α1 is 30 degrees, the angle α2 is 45 degrees, and the angle difference between the angle α1 and the angle α2 That is 15 degrees. That is, the angles of the two second reflectors 70A and 70B can be adjusted respectively according to the structure or usage of the light-emitting panel.

如圖5所示，在第二實施例中，在多組反射結構下，當位於發光元件30上側的第二反射器70A沿著長邊方向延伸之軸相對於參考軸A的夾角α1及位於發光元件30下側的第二反射器70B沿著長邊方向延伸之軸相對於參考軸A的夾角α2不同時，位於另一發光元件30'上側的另一第二反射器70A'沿著長邊方向延伸之軸及參考軸A之間的夾角δ1與夾角α1相同，而位於另一發光元件30'下側的另一第二反射器70B'沿著長邊方向延伸之軸及參考軸A之間的夾角δ2與夾角α2相同。As shown in FIG. 5 , in the second embodiment, under the multi-group reflection structure, when the second reflector 70A located on the upper side of the light-emitting element 30 extends along the longitudinal direction, the included angle α1 relative to the reference axis A and the When the axis of the second reflector 70B on the lower side of the light-emitting element 30 extending along the longitudinal direction has a different angle α2 with respect to the reference axis A, the other second reflector 70A' located on the upper side of the other light-emitting element 30 ′ extends along the longitudinal direction. The included angle δ1 between the axis extending in the side direction and the reference axis A is the same as the included angle α1, and the other second reflector 70B' located on the lower side of the other light-emitting element 30 ′ extends along the axis along the longitudinal direction and the reference axis A The included angle δ2 between them is the same as the included angle α2.

綜上所述，提供一種反射結構100，藉由二第一反射器50A、50B將發光元件30射向二第一反射器50A、50B側的光線反射並分別朝向使用者側出光，以避免射向二第一反射器50A、50B側的光線分散，另外亦藉由二第二反射器70A、70B將射向二第二反射器70A、70B側的光線反射並分別朝向使用者側出光，以避免光線從二第二反射器70A、70B處散發而造成光線損失，另外，使用者亦可以調整二第二反射器70A、70B的設置角度，以調整出光效率。In summary, a reflective structure 100 is provided. The two first reflectors 50A and 50B are used to reflect the light emitted by the light-emitting element 30 toward the two first reflectors 50A and 50B and emit light toward the user side respectively, so as to avoid the light emitted from the light-emitting element 30 . The light toward the two first reflectors 50A, 50B is dispersed, and the two second reflectors 70A, 70B also reflect the light toward the two second reflectors 70A, 70B and emit light toward the user side respectively, so as to To avoid light loss caused by the light emitted from the two second reflectors 70A and 70B, the user can also adjust the setting angles of the two second reflectors 70A and 70B to adjust the light extraction efficiency.

100:反射結構 10:基板 30、30":發光元件 30':另外一發光元件 50':另外一第一反射器 50A、50B:第一反射器 51A、51B:第一反射面 70"、70A、70B:第二反射器 70A'、70B':另外二第二反射器 71A、71B:第二反射面 A、B:參考軸 H1:第一高度 H2:第二高度 α、α1、α2、β、γ、δ、δ1、δ2:夾角100: Reflective Structure 10: Substrate 30, 30": light-emitting element 30': Another light-emitting element 50': Another first reflector 50A, 50B: first reflector 51A, 51B: the first reflecting surface 70", 70A, 70B: Second reflector 70A', 70B': the other two second reflectors 71A, 71B: Second reflective surface A, B: Reference axis H1: first height H2: second height α, α1, α2, β, γ, δ, δ1, δ2: included angle

圖1為根據一第一實施例反射結構之立體示意圖。 圖2為根據一第一實施例反射結構之俯視圖。 圖3為根據圖1中標號3所示方向之第一反射器示意圖。 圖4為根據圖1中標號4所示方向之第二反射器示意圖。 圖5為根據一第二實施例反射結構之俯視圖。 FIG. 1 is a three-dimensional schematic diagram of a reflection structure according to a first embodiment. FIG. 2 is a top view of a reflective structure according to a first embodiment. FIG. 3 is a schematic diagram of the first reflector according to the direction indicated by the reference numeral 3 in FIG. 1 . FIG. 4 is a schematic diagram of the second reflector according to the direction indicated by the reference numeral 4 in FIG. 1 . FIG. 5 is a top view of a reflection structure according to a second embodiment.

100:反射結構 100: Reflective Structure

10:基板 10: Substrate

30:發光元件 30: Light-emitting element

50A、50B:第一反射器 50A, 50B: first reflector

70A、70B:第二反射器 70A, 70B: Second reflector

Claims (10)

一種反射結構，包括： 一基板； 一發光元件，該發光元件設於該基板，且虛擬之一參考軸係平行該基板並穿過該發光元件之中心； 二第一反射器，分別設於該發光元件相對兩側並垂直於該參考軸；以及 二第二反射器，分別設於該發光元件相對的另外兩側，且該二第二反射器沿著長邊方向延伸之軸與該參考軸夾15至75度。 A reflective structure comprising: a substrate; a light-emitting element, the light-emitting element is disposed on the substrate, and a virtual reference axis is parallel to the substrate and passes through the center of the light-emitting element; two first reflectors, respectively disposed on opposite sides of the light-emitting element and perpendicular to the reference axis; and Two second reflectors are respectively disposed on the other two opposite sides of the light-emitting element, and the axis extending along the longitudinal direction of the two second reflectors and the reference axis are sandwiched by 15 to 75 degrees. 如請求項1所述之反射結構，其中，該二第二反射器沿著長邊方向延伸之軸與該參考軸的夾角為45度。The reflection structure according to claim 1, wherein the included angle between the axes extending along the longitudinal direction of the two second reflectors and the reference axis is 45 degrees. 如請求項1所述之反射結構，該二第一反射器分別具有一第一反射面，該第一反射面與該基板之間的夾角為10至80度，該二第二反射器分別具有一第二反射面，該第二反射面與該基板之間的夾角為10至80度。According to the reflection structure of claim 1, the two first reflectors respectively have a first reflection surface, the included angle between the first reflection surface and the substrate is 10 to 80 degrees, and the two second reflectors respectively have a second reflective surface, and the included angle between the second reflective surface and the substrate is 10 to 80 degrees. 如請求項1所述之反射結構，其中，該二第一反射器分別具有一第一高度，該第一高度為5至20um，該二第二反射器分別具有一第二高度，該第二高度為5至20um。The reflective structure of claim 1, wherein the two first reflectors have a first height respectively, the first height is 5 to 20um, the two second reflectors have a second height respectively, the second Height is 5 to 20um. 如請求項4所述之反射結構，該第一高度為20um，該第二高度為20um。According to the reflection structure of claim 4, the first height is 20um, and the second height is 20um. 如請求項4所述之反射結構，該第一高度與該第二高度為不同的高度。According to the reflective structure of claim 4, the first height and the second height are different heights. 如請求項1所述之反射結構，其中該二第二反射器沿著長邊方向延伸之軸相對於該參考軸的夾角彼此間具有一夾角差值，該夾角差值介於正負30度之間。The reflective structure as claimed in claim 1, wherein an included angle between the axes of the two second reflectors extending along the longitudinal direction relative to the reference axis has an included angle difference between each other, and the included angle difference is between plus or minus 30 degrees between. 如請求項1所述之反射結構，其中該二第二反射器彼此相互平行。The reflection structure of claim 1, wherein the two second reflectors are parallel to each other. 如請求項1所述之反射結構，其中該二第一反射器與該二第二反射器相互不連接。The reflection structure of claim 1, wherein the two first reflectors and the two second reflectors are not connected to each other. 如請求項1所述之反射結構，更包括另外一發光元件、另外一第一反射器及另外二第二反射器，該另一發光元件沿該參考軸設置於該二第一反射器的其中之一且相對於該發光元件的另一側，該另外一第一反射器沿著該參考軸排列，位於該另一發光元件未設置該第一反射器的一側，並與該二第一反射器彼此相互呈平行，該另外二第二反射器分別設於該另一發光元件相對於該第一反射器及該另外一第一反射器的另外兩側，且該另外二第二反射器沿著長邊方向延伸之軸及該參考軸之間的夾角，與該二第二反射器沿著長邊方向延伸之軸及該參考軸之間的夾角相同。The reflection structure according to claim 1, further comprising another light-emitting element, another first reflector and another two second reflectors, the other light-emitting element is disposed among the two first reflectors along the reference axis One and opposite to the other side of the light-emitting element, the other first reflector is arranged along the reference axis, located on the side of the other light-emitting element where the first reflector is not provided, and is connected with the two first reflectors. The reflectors are parallel to each other, the other two second reflectors are respectively arranged on the other two sides of the other light-emitting element relative to the first reflector and the other first reflector, and the other two second reflectors The included angle between the axis extending along the longitudinal direction and the reference axis is the same as the included angle between the axes extending along the longitudinal direction of the two second reflectors and the reference axis.
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