200938933 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種投影輔助機構，特別係有關於一 種搭配可攜式電子裝置使用之投影輔助機構。 【先前技術】 目前之可攜式電子裝置已逐漸搭載投影元件，以容許 使用者能隨時隨地以投影的方式觀看影像資料。參照第1 圖，其係顯示習知之可攜式電子裝置1的投影方式。使用 者通常以手持的方式固定可攜式電子裝置1，並將影像2 投影至牆面（投影面）或其他物體之上。在習知的投影方式 中，由於使用者以手持的方式固定可攜式電子裝置1，因 • 此並無法舒適的觀看影像2。此外，由於投影面係由使用 者從所處之周圍環境所選擇，因此投影距離容易過長或過 短，造成投影亮度不足或是投影焦距不準等問題。 【發明内容】 p 本發明之目的在於提供一種搭配可攜式電子裝置使用之 投影輔助機構。 本發明的其他目的和優點可以從本發明所揭露的技術特 徵中得到進一步的了解。 為達上述之一或部份或全部目的或是其他目的，本發明 之投影輔助機構包含本體、延伸支架、螢幕撐架以及投影 螢幕。本體包括一殼體及一開口，開口開設於殼體之一表 面。延伸支架可伸縮，包括一第一端以及一第二端，第一 端固定於殼體之内部，第二端係透過開口進出殼體之内 PT1164/ 9009-A41476-TW/Draft-f 5 200938933 部，延伸支架適於沿一第一轴拉伸。螢幕撐架設於第二端， 於延伸支架沿第一軸拉伸後，螢幕樓架適於沿一第二轴擴 張，第一轴垂直於第二轴。投影螢幕適於固定於擴張後的 螢幕撐架上。 在一實施例中，螢幕撐架包括一第一底部支架、一第 二底部支架、一第一立向支架以及一第二立向支架，第一 底部支架連接第二端以及第一立向支架，第二底部支架連 接第二端以及第二立向支架。 在一實施例中，第一立向支架以及第二立向支架以可 樞轉的方式分別連接第一底部支架以及第二底部支架，使 第一立向支架能於平行於延伸支架及垂直於延伸支架與第 一底部支架之間變化，並且第二立向支架能於平行於延伸 支架及垂直於延伸支架與第二底部支架之間變化。 在另一實施例中，第一立向支架以及第二立向支架以可 樞轉的方式分別連接第一底部支架以及第二底部支架，第 一立向支架能於平行於第一底部支架及垂直於延伸支架與 第一底部支架之間變化，第二立向支架能於平行於第二底 部支架及垂直於延伸支架與第二底部支架之間變化。 應用本發明，由於可攜式電子裝置透過投影輔助機構 而固定，因此使用者可舒適的觀看影像。此外，由於投影 距離固定，因此不會有投影亮度不足或是投影焦距不準等 問題。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在以下 PT1164/ 9009-A41476-TW/Draft-f 6 200938933 配合參考圖式之一較佳實施例的詳細說明中，將可清楚的呈 現。以下實施例中所提到的方向用語，例如：上、下、左、右、 前或後等，僅是參考附加圖式的方向。因此，使用的方向用語 是用來說明並非用來限制本發明。 參照第2圖，其係顯示本發明第一實施例之投影輔助 機構100，包括本體110、延伸支架120、螢幕撐架130以 及投影螢幕140。本體包括殼體111、開口 112以及固定座 ❹ 113，開口 112開設於殼體111表面。延伸支架120以可伸 縮的方式設於開口 112之中，延伸支架120包括一第一端 121以及一第二端122,第一端121固定於本體110之中， 第二端122透過開口 112進出殼體111内部。螢幕撐架130 設於第二端122。投影螢幕140展開固定於螢幕撐架130 之上。 螢幕撐架130包括一第一底部支架131、一第二底部 支架132、一第一立向支架133以及一第二立向支架134， ❹ 第一底部支架131連接第二端122以及第一立向支架 133, 第二底部支架132連接第二端122以及第二立向支架 134。 第一底部支架131以及第二底部支架132分別為可伸 縮元件。第一立向支架133以及第二立向支架134以可樞 轉的方式分別連接第一底部支架131以及第二底部支架 132 ° 參照第3a-3d圖，以下說明投影輔助機構100的使用 方式。當攜帶投影辅助機構100時，延伸支架120以及螢 幕撐架130係收納於本體110之中（第3a圖）。當使用時， PT1164/ 9009-A41476-TW/Draft-f 7 200938933 首先，將延伸支架120從開口 112中沿第一軸x拉伸（第3b 圖）。接著，將第一立向支架133以及第二立向支架134從 一第三方位C旋轉至一第四方位D(第3b、3c圖），其中， 當第一立向支架133以及第二立向支架134位於第三方位 C時，第一立向支架133以及第二立向支架134平行於延 伸支架120,當第一立向支架133以及第二立向支架134 位於第四方位D時，第一立向支架133以及第二立向支架 134垂直於延伸支架120。最後，將第一底部支架131以及 ^ 第二底部支架132自第二端122分別沿一第一方向以及一 第二方向拉伸（第3d圖），第一方向相反於第二方向，第一 方向以及第二方向平行一第二轴y。 參照第4圖，其係顯示本發明第二實施例之投影輔助 機構100’，包括本體110、延伸支架120、螢幕撐架130’ 以及投影螢幕140。本體包括殼體111、開口 112以及固定 座113，開口 112開設於殼體111表面。延伸支架120以 p 可伸縮的方式設於開口 112之中，延伸支架120包括一第 一端121以及一第二端122，第一端121固定於本體110 之中。螢幕撐架130’設於第二端122。投影螢幕140展開 固定於螢幕撐架130’之上。 螢幕撐架130’包括一第一底部支架131’、一第二底部 支架132’、一第一立向支架133以及一第二立向支架134, 第一底部支架131’連接第二端122以及第一立向支架 133, 第二底部支架132’連接第二端122以及第二立向支架 134。 第一底部支架13Γ以及第二底部支架132’以可樞轉 ΡΤ1164/ 9009-A4147 6-TW/Draft-f 8 200938933 的方式分別連接第二端122。第一立向支架133以及第二 立向支架134以可樞轉的方式分別連接第一底部支架131’ 以及第二底部支架132’。 參照第5a-5d圖以下說明投影輔助機構100’的使用方 式。當攜帶投影辅助機構100’時，延伸支架120以及螢幕 撐架130’係收納於本體110之中（第5a圖）。當使用時，首 先，將延伸支架120從開口 112中沿第一軸X拉伸（第5b 圖）。接著，將第一底部支架13Γ以及第二底部支架132’ 從一第一方位旋轉A至一第二方位B(第5b、5c圖），當第 一底部支架13Γ以及第二底部支架132’於第一方位A時， 第一底部支架13Γ以及第二底部支架132’平行於延伸支架 120,當第一底部支架13Γ以及第二底部支架132’於第二 方位B時，第一底部支架131’以及第二底部支架132’分別 沿一第一方向以及一第二方向拉伸，第一方向相反於第二 方向，第一方向以及第二方向平行一第二軸y。最後，將 第一立向支架133以及第二立向支架134從一第三方位C’ 旋轉至一第四方位D(第5c、5d圖），其中，當第一立向支 架133以及第二立向支架134位於第三方位C’時，第一立 向支架133以及第二立向支架134分別平行第一底部支架 13Γ以及第二底部支架132’，當第一立向支架133以及第 二立向支架134位於第四方位D時，第一立向支架133以 及第二立向支架134垂直於第一底部支架131’以及第二底 部支架132’。 參照第6a以及6b圖，在此以第一實施例之投影輔助 PT1164/ 9009-A41476-TW/Draft-f 9 200938933 機構100為例，說明投影螢幕140的展開方式。參照第6a 圖，在一實施例中，第一立向支架133包括一彈力捲軸 143,第二立向支架134包括一卡扣元件144,投影螢幕140 包括一螢幕側面141以及一卡合部142，投影螢幕140捲 收於彈力捲轴143之上，當使用時，投影螢幕140從彈力 捲軸143展開，透過螢幕側面141上的卡合部142固定於 卡扣元件144之上，在此實施例中，投影螢幕140為布幕。 參照第6b圖，在另一實施例中，第一立向支架133包括一 ® 第一溝槽135，第二立向支架134包括一第二溝槽136，投 影螢幕140插設於第一溝槽135以及第二溝槽136之中而 位於第一立向支架133以及第二立向支架134之間，在此 實施例中，投影螢幕140可以為紙張或塑料。 參照第7a以及7b圖，在此以第一實施例之投影輔助 機構100為例，說明可攜式電子裝置固定於固定座的情 形。參照第7a圖，當可攜式電子裝置1的投影元件11設 _ 於可攜式電子裝置1的正面時，固定座113將可攜式電子 裝置1的正面朝向投影螢幕140而固定。投影元件11可提 供一投射至投影螢幕140上的影像。參照第7b圖，當可攜 式電子裝置1’的投影元件11’設於可攜式電子裝置Γ的側 面時，固定座113將可攜式電子裝置1’的側面朝向投影螢 幕140而固定。固定座113可以一體成形的方式、可滑動 的方式、可拆卸的方式，或其他方式，設於殼體111的上 表面。 應用本發明，由於可攜式電子裝置透過投影輔助機構 PT1164/ 9009-A41476-TW/Draft-f 10 200938933 ❹ 而固定，因此使用者可舒適的觀看影像。此外， 距離固定，因此不會有投影亮度不足或是投影焦矩不準^ 問題。 惟以上所述者，僅為本發明之較佳實施例而已，當不能以 此限定本發明實施之翻，即大凡依本發财請專^圍及發 明說明内容所作之簡單的等效變化與修#，皆仍屬本發明專利 涵蓋之範圍内。另外本發明的任—實施例或㈣專利範圍不須 達成本發明所揭露之全部目的或優點或特點。此外，摘要部分 和標題僅是絲_專散件搜尋來限制本發明 之權利範圍。 【圖式簡單說明】 第1圖係顯示習知之可攜式電子裝置的投影方式； 第2圖係顯示本發明第—實施例之投影辅助機構； 第3a-3d圖係顯示第一實施例之投影辅助機構的使用 Ο 方式； 第4圖係顯不本發明第二實施例之投影辅助機構； 第5a 5d圖係顯示第二實施例之投影輔助機構的使用 方式； 第6a-6b圖係顯示本發明之實施例中，投影螢幕的展 開方式； 第7a_7b ®係顯示在本發明中，可攜式電子裝 於固定座的情形。 【主要元件符號說明】 置固定 ΡΤ1164/ 9009-A41476-TW/Drafit-f 200938933 I、 r〜可攜式電子裝置 2〜影像 II、 11’〜投影元件 100、100’〜投影輔助機構 110〜本體 111〜殼體 112〜開口 113/〜ί固定座 120〜延伸支架 121〜第一端 122〜第二端 130〜螢幕撐架 131、 13Γ〜第一底部支架 132、 132’〜第二底部支架 133〜第一立向支架 134〜第二立向支架 135〜第一溝槽 136〜第二溝槽 140〜投影螢幕 141〜螢幕側面 142〜卡合部 143〜彈力捲軸 144〜卡扣元件 A、Β、C、C，、D〜方位 PT1164/ 9009-A41476-TW/Draft-f200938933 IX. Description of the Invention: [Technical Field] The present invention relates to a projection assisting mechanism, and more particularly to a projection assisting mechanism for use with a portable electronic device. [Prior Art] Currently, portable electronic devices have been gradually equipped with projection elements to allow users to view image data in a projection manner anytime and anywhere. Referring to Fig. 1, there is shown a projection of a conventional portable electronic device 1. The user usually fixes the portable electronic device 1 in a hand-held manner and projects the image 2 onto a wall (projection surface) or other object. In the conventional projection mode, since the user holds the portable electronic device 1 in a hand-held manner, the image 2 cannot be comfortably viewed. In addition, since the projection surface is selected by the user from the surrounding environment, the projection distance is likely to be too long or too short, resulting in insufficient projection brightness or inaccurate projection focal length. SUMMARY OF THE INVENTION The object of the present invention is to provide a projection assisting mechanism for use with a portable electronic device. Other objects and advantages of the present invention will become apparent from the technical features disclosed herein. To achieve one or a portion or all of the above or other objects, the projection aid of the present invention includes a body, an extension bracket, a screen bracket, and a projection screen. The body includes a casing and an opening, and the opening is formed on a surface of the casing. The extension bracket is telescopic and includes a first end and a second end. The first end is fixed to the inside of the housing, and the second end is inserted into and out of the housing through the opening. PT1164/9009-A41476-TW/Draft-f 5 200938933 The extension bracket is adapted to be stretched along a first axis. The screen support is disposed at the second end, and after the extension bracket is stretched along the first axis, the screen frame is adapted to expand along a second axis, the first axis being perpendicular to the second axis. The projection screen is adapted to be attached to the expanded screen support. In one embodiment, the screen support comprises a first bottom bracket, a second bottom bracket, a first vertical bracket and a second vertical bracket, the first bottom bracket connecting the second end and the first vertical bracket The second bottom bracket connects the second end and the second vertical bracket. In an embodiment, the first vertical bracket and the second vertical bracket are pivotally connected to the first bottom bracket and the second bottom bracket, respectively, so that the first vertical bracket can be parallel to the extending bracket and perpendicular to The extension bracket varies from the first bottom bracket and the second upright bracket is changeable parallel to the extension bracket and perpendicular to the extension bracket and the second bottom bracket. In another embodiment, the first vertical bracket and the second vertical bracket are pivotally connected to the first bottom bracket and the second bottom bracket, respectively, and the first vertical bracket can be parallel to the first bottom bracket and Vertically varying between the extension bracket and the first bottom bracket, the second vertical bracket can be varied parallel to the second bottom bracket and perpendicular to the extension bracket and the second bottom bracket. According to the present invention, since the portable electronic device is fixed by the projection assisting mechanism, the user can comfortably view the image. In addition, since the projection distance is fixed, there is no problem that the projection brightness is insufficient or the projection focal length is not accurate. [Embodiment] The foregoing and other technical contents, features, and effects of the present invention will be described in the following detailed description of a preferred embodiment of the reference drawing with reference to PT1164/9009-A41476-TW/Draft-f 6 200938933 Clear presentation. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is intended to be illustrative of the invention. Referring to Fig. 2, there is shown a projection assisting mechanism 100 according to a first embodiment of the present invention, comprising a body 110, an extension bracket 120, a screen bracket 130, and a projection screen 140. The body includes a housing 111, an opening 112, and a fixing seat 113, and the opening 112 is formed on the surface of the housing 111. The extension bracket 120 is disposed in the opening 112 in a telescopic manner. The extension bracket 120 includes a first end 121 and a second end 122. The first end 121 is fixed in the body 110, and the second end 122 enters and exits through the opening 112. The inside of the housing 111. The screen bracket 130 is disposed at the second end 122. The projection screen 140 is unfolded and fixed on the screen bracket 130. The screen bracket 130 includes a first bottom bracket 131, a second bottom bracket 132, a first vertical bracket 133, and a second vertical bracket 134. The first bottom bracket 131 is connected to the second end 122 and the first stand. To the bracket 133, the second bottom bracket 132 connects the second end 122 and the second vertical bracket 134. The first bottom bracket 131 and the second bottom bracket 132 are respectively expandable members. The first vertical bracket 133 and the second vertical bracket 134 are pivotally connected to the first bottom bracket 131 and the second bottom bracket 132. Referring to Figures 3a-3d, the manner of use of the projection assist mechanism 100 will be described below. When the projection assist mechanism 100 is carried, the extension bracket 120 and the screen holder 130 are housed in the main body 110 (Fig. 3a). When in use, PT1164/9009-A41476-TW/Draft-f 7 200938933 First, the extension bracket 120 is stretched from the opening 112 along the first axis x (Fig. 3b). Next, the first vertical bracket 133 and the second vertical bracket 134 are rotated from a third position C to a fourth orientation D (Fig. 3b, 3c), wherein the first vertical bracket 133 and the second vertical When the bracket 134 is located at the third position C, the first vertical bracket 133 and the second vertical bracket 134 are parallel to the extension bracket 120, when the first vertical bracket 133 and the second vertical bracket 134 are located in the fourth orientation D, The first vertical bracket 133 and the second vertical bracket 134 are perpendicular to the extension bracket 120. Finally, the first bottom bracket 131 and the second bottom bracket 132 are respectively stretched from the second end 122 in a first direction and a second direction (Fig. 3d), the first direction is opposite to the second direction, the first The direction and the second direction are parallel to a second axis y. Referring to Fig. 4, there is shown a projection assisting mechanism 100' according to a second embodiment of the present invention, comprising a body 110, an extension bracket 120, a screen holder 130', and a projection screen 140. The body includes a housing 111, an opening 112, and a fixing seat 113. The opening 112 is formed on the surface of the housing 111. The extension bracket 120 is disposed in the opening 112 in a telescopic manner. The extension bracket 120 includes a first end 121 and a second end 122. The first end 121 is fixed in the body 110. The screen bracket 130' is disposed at the second end 122. The projection screen 140 is unfolded and fixed to the screen holder 130'. The screen bracket 130' includes a first bottom bracket 131', a second bottom bracket 132', a first vertical bracket 133, and a second vertical bracket 134. The first bottom bracket 131' connects the second end 122 and The first vertical bracket 133, the second bottom bracket 132' connects the second end 122 and the second vertical bracket 134. The first bottom bracket 13 and the second bottom bracket 132' are respectively coupled to the second end 122 in a manner of pivoting 1164/9009-A4147 6-TW/Draft-f 8 200938933. The first vertical bracket 133 and the second vertical bracket 134 are pivotally connected to the first bottom bracket 131' and the second bottom bracket 132', respectively. The use of the projection assist mechanism 100' will be described below with reference to Figs. 5a-5d. When the projection assist mechanism 100' is carried, the extension bracket 120 and the screen holder 130' are housed in the body 110 (Fig. 5a). When in use, first, the extension bracket 120 is stretched from the opening 112 along the first axis X (Fig. 5b). Next, the first bottom bracket 13 Γ and the second bottom bracket 132 ′ are rotated from a first orientation to a second orientation B ( FIGS. 5 b , 5 c ), when the first bottom bracket 13 Γ and the second bottom bracket 132 ′ In the first orientation A, the first bottom bracket 13 and the second bottom bracket 132' are parallel to the extension bracket 120. When the first bottom bracket 13 and the second bottom bracket 132' are in the second orientation B, the first bottom bracket 131' And the second bottom bracket 132' is respectively stretched in a first direction and a second direction, the first direction is opposite to the second direction, and the first direction and the second direction are parallel to a second axis y. Finally, the first vertical bracket 133 and the second vertical bracket 134 are rotated from a third position C' to a fourth orientation D (Fig. 5c, 5d), wherein the first vertical bracket 133 and the second When the vertical bracket 134 is located at the third position C', the first vertical bracket 133 and the second vertical bracket 134 are parallel to the first bottom bracket 13A and the second bottom bracket 132', respectively, when the first vertical bracket 133 and the second When the vertical bracket 134 is in the fourth orientation D, the first vertical bracket 133 and the second vertical bracket 134 are perpendicular to the first bottom bracket 131' and the second bottom bracket 132'. Referring to Figures 6a and 6b, the deployment of the projection screen 140 will be described by taking the projection assisting PT1164/9009-A41476-TW/Draft-f 9 200938933 mechanism 100 of the first embodiment as an example. Referring to FIG. 6a, in an embodiment, the first vertical bracket 133 includes a resilient reel 143, and the second vertical bracket 134 includes a latching member 144. The projection screen 140 includes a screen side 141 and a latching portion 142. The projection screen 140 is retracted on the elastic reel 143. When in use, the projection screen 140 is unfolded from the elastic reel 143 and fixed to the locking component 144 through the engaging portion 142 on the side 141 of the screen, in this embodiment. The projection screen 140 is a curtain. Referring to FIG. 6b, in another embodiment, the first vertical bracket 133 includes a first groove 135, the second vertical bracket 134 includes a second groove 136, and the projection screen 140 is inserted into the first groove. The slot 135 and the second groove 136 are located between the first vertical bracket 133 and the second vertical bracket 134. In this embodiment, the projection screen 140 may be paper or plastic. Referring to Figures 7a and 7b, the projection assisting mechanism 100 of the first embodiment is taken as an example to illustrate the case where the portable electronic device is fixed to the fixed seat. Referring to FIG. 7a, when the projection element 11 of the portable electronic device 1 is disposed on the front side of the portable electronic device 1, the fixing base 113 fixes the front surface of the portable electronic device 1 toward the projection screen 140. Projection element 11 provides an image that is projected onto projection screen 140. Referring to Fig. 7b, when the projection element 11' of the portable electronic device 1' is disposed on the side of the portable electronic device ,, the mount 113 fixes the side of the portable electronic device 1' toward the projection screen 140. The holder 113 may be integrally formed, slidably, detachably, or otherwise provided on the upper surface of the housing 111. By applying the present invention, since the portable electronic device is fixed by the projection assisting mechanism PT1164/9009-A41476-TW/Draft-f 10 200938933 使用者, the user can comfortably view the image. In addition, the distance is fixed, so there is no problem that the projection brightness is insufficient or the projection focus is not accurate. However, the above is only a preferred embodiment of the present invention, and it is not possible to limit the implementation of the present invention, that is, the simple equivalent change made by the present invention and the description of the invention. Repair # is still within the scope of the patent of the present invention. In addition, any of the objects or advantages or features disclosed in the present invention are not required to be included in the scope of the invention. In addition, the abstract sections and headings are only for the purpose of limiting the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a projection mode of a conventional portable electronic device; Fig. 2 shows a projection assisting mechanism of a first embodiment of the present invention; and Figs. 3a-3d show a first embodiment The use of the projection assisting mechanism 第 mode; the fourth figure shows the projection assisting mechanism of the second embodiment of the present invention; the 5a 5d diagram shows the use mode of the projection assisting mechanism of the second embodiment; the 6a-6b system shows In the embodiment of the present invention, the expansion mode of the projection screen; 7a-7b® is shown in the present invention, in the case where the portable electronic device is mounted on the fixed seat. [Description of main component symbols] Fixing ΡΤ1164/ 9009-A41476-TW/Drafit-f 200938933 I, r~Portable electronic device 2~Image II, 11'~Projection element 100, 100'~Projection aid mechanism 110~ Body 111 to the housing 112 to the opening 113 / ί 固定 固定 固定 固定 固定 固定 固定 固定 固定 固定 固定 固定 固定 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 The first vertical bracket 134 to the second vertical bracket 135 to the first groove 136 to the second groove 140 to the projection screen 141 to the screen side 142 to the engaging portion 143 to the elastic reel 144 to the snap element A and Β , C, C, D to azimuth PT1164/ 9009-A41476-TW/Draft-f