200818073~ 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種升降機構及應用其之顯示系 統，且特別是有關於一種可調整顯示螢幕升降及轉動之升 降機構及應用其之顯示系統。 【先前技術】 請參照第1 ® ’其繪示乃傳統上顯示螢幕架設方式之 示意圖。如第1圖所示’顯示蝥幕1G通常會搭配基座n 設置以穩定地擺放於桌面上。基座u可由套筒12、支撐 枉13及底板14組成，其中套筒12大多以可滑動的方： 與支撲柱13結合，以達到藉由套筒12帶動顯示蟹幕1〇 相對於支撐柱13上下移動的目的，而切柱13設置在底 板14上，由底板14承載整個顯示螢幕1〇的重量。缺而， 由於套筒U是裝設在顯示螢幕10的背面，使得顯示螢幕 10的重心是落在底板14的前方。當底板14面積太小時， 容易發生顯示螢幕前傾之安全f顿。因此常見之做法係加 大底板14的面積以穩定基座U對於顯示螢幕1()的支撐。 底板^面積的加大不僅使基座u的材㈣製造成本增 加，同時很佔空間。此外’由於此套筒12的設計僅能讓 顯示螢幕1G上下移動，當使用者認為視角不佳而想調整 顯示螢幕10的轉動角度時則無法如願。 200818073·69ΡΑ 【發明内容】 有鑑於此，本發明的目的就是在提供〜種升降機構及 應用其之顯示系統，係利用旋轉樞軸搭配内外滑塊及定力 彈更的$又计，於顯示營幕的二側邊支樓起顯示螢幕。使牙？ 使用者除了可轉動顯示螢幕以調整視角外，並可調整顯二 螢幕相對於基座之高度。不僅可解決設置顯示螢幕時重: 不穩的問題，更具有節省底板材料之功效。 “ 根據本發明的目的，提出一種升降機構，適用於顯示 螢幕，升降機構包括基座及二個樞軸組件。基座具有二: 支撐臂用以於顯示螢幕的二個側邊支撐顯示螢幕，而一個 樞軸組件則各自設置於顯示螢幕及二個支撐臂之間。一個 樞軸組件各具有相互連接之滑動定位部及旋轉部。每個= 轉部連接於一個支撐臂，用以使顯示螢幕相對基座轉動。 二個滑動定位部則各別連接於顯示螢幕的二個侧邊，用以 調整顯示螢幕相對於基座之距離。 根據本發明的目的，再提出一種顯示系統，包括顯示 : 螢幕及升降機構，其中升降機構包括基座及二個樞軸組 件。基纟具有一個支撐冑，用以於顯示螢幕的二側邊支稽 顯示螢幕，而二個樞軸組件各具有相互連接之滑動定位部 及旋轉部。二個旋轉部各別連接於二個支撐臂，用以使顯 不螢幕相對於基座轉動，而二個滑動定位部則各別連接於 顯示螢幕的二個側邊，用以調整顯示螢幕相對於基座之距 離。 為讓本發明之上述目的、特徵、和優點能更明顯易 6 200818073~ 懂，下文特舉一較佳實施例，並配合所附圖式，作詳細說 明如下： 【實施方式】 請參照第2圖，其繪示依照本發明一較佳實施例的顯 示系統之立體圖。如第2圖所示，顯示系統包括顯示螢幕 20及升降機構21，其中升降機構21包括基座22及二樞 軸組件23、24。基座22具有垂直設置的二個支撐臂221、 222，用以於顯示螢幕20的二個側邊支撐起顯示螢幕20。 樞軸組件23具有相互連接之滑動定位部230及旋轉部 231，而枢軸組件24具有相互連接的滑動定位部240及旋 轉部241。其中旋轉部231連接於支撐臂221，而旋轉部 241則連接於支撐臂222，用以使顯示螢幕2〇相對於基座 22轉動。二個滑動定位部230、240各別連接於顯示螢幕 20的二侧邊’用以調整顯示螢幕2〇相對於基座22的距離。 其中’滑動定位部230包括相互輕接之外滑軌232及 内滑執233，而滑動定位部包括外雜⑽及内滑執 243。較佳地，内滑軌233與外滑軌232是以可滑動的方 式連接，使二者可相對移動’同樣地，内滑軌243與外滑 執242也是以可滑動的方式連接。而二個外滑軌232、242 各別連接於旋轉部23卜241，二個内滑軌M3、M3則連 螢幕20的二侧邊’使顯示螢幕20連同内滑軌 、43可與連結於基座22❸卜滑軌232、242間進行相 7200818073~ IX. Description of the Invention: [Technical Field] The present invention relates to a lifting mechanism and a display system using the same, and more particularly to a lifting mechanism for adjusting display screen lifting and rotating and displaying the same system. [Prior Art] Please refer to the 1 ® ' diagram showing the traditional way of displaying the screen. As shown in Fig. 1, the display curtain 1G is usually set with the base n to be stably placed on the table. The base u may be composed of a sleeve 12, a support raft 13 and a bottom plate 14, wherein the sleeve 12 is mostly slidable: combined with the ram 13 to achieve display of the crab curtain 1 by the sleeve 12 relative to the support The purpose of the column 13 moving up and down, and the cutting column 13 is disposed on the bottom plate 14, and the weight of the entire display screen 1 is carried by the bottom plate 14. In absent, since the sleeve U is mounted on the back surface of the display screen 10, the center of gravity of the display screen 10 falls in front of the bottom plate 14. When the area of the bottom plate 14 is too small, it is easy to display the safety of the screen forward. It is therefore common practice to increase the area of the bottom plate 14 to stabilize the support of the base U for the display screen 1(). The increase in the area of the base plate not only increases the manufacturing cost of the material (4) of the base u, but also takes up space. In addition, since the design of the sleeve 12 can only move the display screen 1G up and down, when the user thinks that the viewing angle is not good and wants to adjust the rotation angle of the display screen 10, it is not possible. 200818073·69ΡΑ [Invention] In view of the above, the object of the present invention is to provide a lifting mechanism and a display system using the same, which is a display of a rotating pivot with an inner and outer slider and a fixed-force bomb. The two side slabs of the squad display the screen. Make teeth? In addition to rotating the display screen to adjust the angle of view, the user can adjust the height of the display screen relative to the base. Not only can it solve the problem of setting the display screen when it is heavy: unstable, it also has the effect of saving the material of the bottom plate. According to the purpose of the present invention, a lifting mechanism is proposed, which is suitable for displaying a screen. The lifting mechanism comprises a base and two pivot assemblies. The base has two: a supporting arm for supporting the display screen on the two sides of the display screen. And a pivot assembly is respectively disposed between the display screen and the two support arms. One pivot assembly has a sliding positioning portion and a rotating portion connected to each other. Each = rotating portion is connected to a support arm for display The screen is rotated relative to the base. The two sliding positioning portions are respectively connected to the two sides of the display screen for adjusting the distance of the display screen relative to the base. According to the purpose of the present invention, a display system including display is provided. The screen and the lifting mechanism, wherein the lifting mechanism comprises a base and two pivot assemblies. The base has a supporting raft for displaying the screen on the two sides of the display screen, and the two pivot assemblies are connected to each other. a sliding positioning portion and a rotating portion. The two rotating portions are respectively connected to the two supporting arms for rotating the display screen relative to the base, and the two sliding positions are The two sides of the display screen are respectively connected to adjust the distance of the display screen relative to the base. The above objects, features, and advantages of the present invention can be more obvious. 6 200818073~ Understand, the following is a special The preferred embodiment and the accompanying drawings are described in detail below. [Embodiment] Please refer to FIG. 2, which is a perspective view of a display system according to a preferred embodiment of the present invention. The display system includes a display screen 20 and a lifting mechanism 21, wherein the lifting mechanism 21 includes a base 22 and two pivot assemblies 23, 24. The base 22 has two support arms 221, 222 disposed vertically for displaying the screen 20. The two side supports support the display screen 20. The pivot assembly 23 has a sliding positioning portion 230 and a rotating portion 231 which are connected to each other, and the pivot assembly 24 has a sliding positioning portion 240 and a rotating portion 241 which are connected to each other. The support arm 221 is coupled to the support arm 222 for rotating the display screen 2 〇 relative to the base 22. The two slide positioning portions 230, 240 are respectively connected to the two sides of the display screen 20' The sliding display portion 230 includes a slide rail 232 and an inner slide 233 which are lightly connected to each other, and the slide positioning portion includes an outer (10) and an inner slide 243. Preferably, the inner slide rail 233 and the outer slide rail 232 are slidably connected so as to be relatively movable. Similarly, the inner slide rail 243 and the outer slide 242 are also slidably connected. The outer slide rails 232 and 242 are respectively connected to the rotating portion 23 241, and the two inner slide rails M3 and M3 are connected to the two sides of the screen 20 to make the display screen 20 together with the inner slide rails 43 connect to the base. 22 ❸ 滑 slide rails 232, 242 between the phases 7
k W3069PA 200818073 滑動定位部230更包括定力彈簧234，而滑動定位部 24〇則包括定力彈簧244。定力彈簧234之二端分別連接 於顯不螢幕20及外滑執232,而定力彈簧244之二端則連 Λ ; 1員示螢幕20及外滑執242。定力彈箬234、244用以 由二二推力以平衡顯示螢幕20之重力。當一般狀態下， 衡/定力彈篑234、244的推力與顯示螢幕20的重力平 去此顯示螢幕20係可穩定的擺放於升降機構21上。而 用者想要調整顯示螢幕20的高度時，只要施力於顯 【户。20上’即可調整顯示螢幕20相對於基座22的高 句如·使用者可向下施力於顯示螢幕2〇，並搭配顯示 Ο Λ 0之重力以克服定力彈簧234、244之推力，使顯示 向下移動以縮短與基座22之間的距離；或是使用 可向上施力於顯示螢幕2〇，並結合定力彈簧234、244 推力以克服顯示螢幕20的重力，進而使顯示螢幕2〇向 上移動。 斜對升降機構21中各零件間的連接關係，以下將附 : ;砰細說明之。請同時參照第3八〜犯圖，第3八圖繪示乃 2阖的升降機構之部份爆炸圖，第3Β圖繪示 '牛之組立圖。如第3Α圖所示，升降機構21更包括一 =反⑽，用以與二個外滑軌232、242連接。旋轉部如、 勺（見第2圖）則較佳地為樞軸設計，例如旋轉部231 螺帽231Α及螺栓231Β，而旋轉部241包括螺^以 及螺fe241B。 由於外滑軌232、242較佳地係對稱設置，其紐穿方 8k W3069PA 200818073 The sliding positioning portion 230 further includes a constant force spring 234, and the sliding positioning portion 24A includes a constant force spring 244. The two ends of the constant force spring 234 are respectively connected to the display screen 20 and the outer slide 232, and the two ends of the constant force spring 244 are connected to each other; the member shows the screen 20 and the outer slide 242. The constant force magazines 234, 244 are used to balance the display of the gravity of the screen 20 by the two or two thrusts. In the normal state, the thrust of the counter/fixing magazines 234, 244 is equal to the gravity of the display screen 20, and the display screen 20 is stably placed on the lifting mechanism 21. When the user wants to adjust the height of the display screen 20, it is only necessary to apply force to the display. 20 can 'just adjust the height of the display screen 20 relative to the base 22 as the user can apply downward to the display screen 2〇, and with the gravity of the display Ο 以 0 to overcome the thrust of the constant force springs 234, 244 , the display is moved downward to shorten the distance from the base 22; or the upper screen can be applied to the display screen 2 〇, and combined with the force springs 234, 244 thrust to overcome the gravity of the display screen 20, thereby enabling display The screen 2〇 moves up. The connection relationship between the components in the inclined lifting mechanism 21 will be attached to the following: Please also refer to the 3rd-8th map, the 3rd figure shows part of the explosion diagram of the 2升降 lifting mechanism, and the 3rd section shows the '牛之立立图. As shown in Fig. 3, the lifting mechanism 21 further includes a reverse (10) for connecting to the two outer slide rails 232, 242. The rotating portion, such as the scoop (see Fig. 2), is preferably a pivotal design, such as a rotating portion 231 nut 231 Α and a bolt 231 Β, and the rotating portion 241 includes a screw and a screw fe 241B. Since the outer slide rails 232, 242 are preferably symmetrically arranged, the new wear side 8
200818073W3〇69PA 式相同，在此僅以外潸執232的組裝為例做說明。組立時， 係可先將外滑執232與支撐臂221相結合，此步驟可藉由 將螺栓231B依序穿過外滑軌232及支撐臂221再鎖入螺 帽231A，以達到固定的目的，此時外滑執232係可相對 於支撐臂221轉動。接著，可將内滑軌233套入外滑軌232 中。依此類推，外滑執242及内滑執243即組裝完成。 擋板250的二侧具有彎折設計，係用以連接於外滑軌 232、242上，其功用將於以下詳述。如第3A圖之零件於 組裝完成後係如第3B圖所示，籍由旋轉部231、241的拖 轴設計，外滑執232、242、内滑執233、243及擋板250 可同時相對於基座22轉動，而内滑軌233、243則可相對 於外滑軌232、242滑動。顯示螢幕20係藉由其二個侧邊 與二個内滑軌233、243連接。 至於升降機構21其他零件之關係，請參照第4A〜4B 圖’第4A圖繪示乃第2圖的滑動定位部之部份爆炸圖， 第4B圖繪示乃第4A圖的零件之組立圖。如第4A圖所示， 升降機構21更包括第一固定板251及第二固定板252,其 中第一固定板251係用以固定於顯示螢幕20之下緣，而 第二固定板252則用以裝設定力彈簧234、244。滑動定位 部230更包括滾筒235及隔件236，而滑動定位部24〇則 更包括滾筒245及隔件246。滾筒235、245主要係裝設於 第二固定板252上，而隔件236、246則裝設於第一固定 板251上。以下說明零件的組裝關係。 由於定力彈簧244與234的裝設方式相同，在此僅以 9The 200818073W3〇69PA type is the same, and only the assembly of the external 232 is described here as an example. When assembled, the outer slide 232 can be first combined with the support arm 221. This step can be achieved by fixing the bolt 231B through the outer slide rail 232 and the support arm 221 and then locking the nut 231A. At this time, the outer slide 232 can be rotated relative to the support arm 221 . Next, the inner slide rail 233 can be placed in the outer slide rail 232. By analogy, the outer slide 242 and the inner slide 243 are assembled. The two sides of the baffle 250 have a bent design for attachment to the outer rails 232, 242, the function of which will be described in more detail below. The parts as shown in Fig. 3A are assembled as shown in Fig. 3B, and the outer slides 232, 242, the inner slides 233, 243 and the baffle 250 can be simultaneously opposed by the drag shaft design of the rotating portions 231, 241. The base 22 is rotated, and the inner slide rails 233, 243 are slidable relative to the outer slide rails 232, 242. The display screen 20 is connected to the two inner slide rails 233, 243 by its two sides. For the relationship between the other parts of the lifting mechanism 21, please refer to the 4A to 4B drawings. FIG. 4A is a partial exploded view of the sliding positioning portion of FIG. 2, and FIG. 4B is a partial view of the parts of FIG. 4A. . As shown in FIG. 4A, the lifting mechanism 21 further includes a first fixing plate 251 and a second fixing plate 252, wherein the first fixing plate 251 is fixed to the lower edge of the display screen 20, and the second fixing plate 252 is used. The force springs 234, 244 are mounted. The sliding positioning portion 230 further includes a roller 235 and a spacer 236, and the sliding positioning portion 24b further includes a roller 245 and a spacer 246. The rollers 235, 245 are mainly mounted on the second fixing plate 252, and the spacers 236, 246 are mounted on the first fixing plate 251. The assembly relationship of the parts is explained below. Since the fixed force springs 244 and 234 are installed in the same manner, only 9
200818073W3〇69PA 定力彈簧234的組裝為例做說明。定力彈簧234的一端主 要裝設於滾筒235上，一結件（未繪示）可藉由穿過第二 固定板252上的孔252A以及滾筒235上的孔235A，使定 力彈簧234 —端藉由滾筒235及結件（未繪示）固定於第 二固定板252上，而定力彈簧234之捲片端2遍係固定 在擋板250 (見第3B圖）上。隔件236係可藉由第一固定 板251上的孔251A固定於第一固定板251上。由於定力 彈簧234及第一固定板251之間具有一間隔，當定力彈簧 234的捲片端234A受力被拉伸或推擠時，非常容易牽動 1 整個疋力彈肓234的結構而損壞定力彈簧234。因此隔件 236的設置可有效地使定力彈簧234保持在固定位置上。 至於定力彈黃244與隔件246的組裝則依此類推。當定力 彈簧234、244固定於第二固定板252，而隔件236、246 固定於第一固定板251之後，則可將第一固定板251及第 二固定板252組裝在一起，如第4b圖所示。 待顯示螢幕20的二側邊與内滑軌233、243 (見第3B 圖）結合後，即可將第4B圖之組件與顯示螢幕2〇組合起 ^ 來。其中，定力彈簧234、244之捲片端234八、244八係固 定在擋板250 (見第3B圖）上，由於擋板25〇係固定在外 滑執232、242上’因此定力彈簧234、244之一端可間接 地固定在外滑軌232、242上。藉此，定力彈簧234、244 之二端分別連接於顯示螢幕20及外滑軌232、242上。 當然’除了以内外滑軌作為顯示螢幕的滑動設計之 外，也可利用相互套接之第一筒件及第二筒件作為滑動設The assembly of the 200818073W3〇69PA constant force spring 234 will be described as an example. One end of the constant force spring 234 is mainly disposed on the drum 235, and a binding member (not shown) can pass the hole 252A on the second fixing plate 252 and the hole 235A in the roller 235 to make the constant force spring 234. The end is fixed to the second fixing plate 252 by the roller 235 and the connecting member (not shown), and the winding end 2 of the constant force spring 234 is fixed to the baffle 250 (see FIG. 3B). The spacer 236 is fixed to the first fixing plate 251 by a hole 251A in the first fixing plate 251. Since there is a space between the fixed force spring 234 and the first fixing plate 251, when the winding end 234A of the constant force spring 234 is stretched or pushed by the force, it is very easy to pull the structure of the entire force spring 234 and damage it. Force spring 234. Thus the arrangement of the spacers 236 effectively holds the constant force spring 234 in a fixed position. As for the assembly of the fixed force yellow 244 and the spacer 246, and so on. When the force-preserving springs 234, 244 are fixed to the second fixing plate 252, and the spacers 236, 246 are fixed to the first fixing plate 251, the first fixing plate 251 and the second fixing plate 252 can be assembled together. Figure 4b shows. After the two sides of the screen 20 to be displayed are combined with the inner slide rails 233, 243 (see Fig. 3B), the components of the Fig. 4B can be combined with the display screen 2〇. Wherein, the winding ends 234, 244 of the constant-force springs 234, 244 are fixed on the baffle 250 (see FIG. 3B), and the baffle 25 is fixed on the outer sliding blocks 232, 242. One end of the 244 can be indirectly fixed to the outer rails 232, 242. Thereby, the two ends of the fixed force springs 234, 244 are respectively connected to the display screen 20 and the outer slide rails 232, 242. Of course, in addition to the sliding design of the inner and outer slide rails as the display screen, the first tubular member and the second tubular member that are sleeved together can also be used as the sliding device.
.iV3069PA 200818073 計。例如，可將二個外滑軌以二個第 個第二筒件取代二個内滑軌，其他的設計二並以二 讓第-筒件連接旋轉部，而第二筒 於，更，即是 使定力彈簧的二端分別連接於第— 幕’並 地可提供顯示螢幕滑動之功能。 一扁不螢幕，同樣 至於升降機構之操作，請參照第5a〜5c 其繪示乃第2圖顯示系統於操作時之側視圖。如二圖’ 所示’此顯示螢幕20於基座22卜呈古 〜 圖 丞反22上具有一預定位置P，鲂 佳地，當顯不螢幕20位於此預定位置p上時，顯示 20的重心實質上是與二個旋轉部231、241 (未緣示於第 5A圖中）成一直線排列。此時不論顯示螢幕2〇是順時針 轉動（見第5B圖），或是逆時針轉動（見第5C圖），都不 會產生額外的力矩作用於基座22上。當然，升降機構Μ 之設計係使得顯示螢幕20的轉動及移動為二個獨立的運 動，因此，如第6A圖所示，使用者也可以僅調整顯示營 幕20的τ%度’使顯示螢幕20相對於基座22向下移動到 位置P’，並轉動顯示螢幕20的角度，如第6B〜6C所示。 ί 於顯示螢幕20之二側支撐之設計方式有助於提高調 整顯示勞幕20的穩定性。同時，相較於傳統上加大底板 面積以增加穩定度之做法，本發明具有節省材料之優點。 本發明上述實施例所揭露之升降機構及應用其之顯 示系統，係利用升降機構的滑動定位部控制顯示螢幕的移 動，並使顯示螢幕藉由旋轉部前後轉動。滑動定位部係内 外滑執相耦接並搭配定力彈簧的設計，而連接於外滑執的 π 200818073~ 旋轉部則為旋轉樞軸之設計。滑動定位部及旋轉部的結合 同時提供了使用者調整顯示螢幕高度及視角的功能。由於 升降機構是由顯示螢幕的二侧支撐顯示螢幕，使調整顯示 螢幕時的穩定性增加，而不需加大基座的尺寸，具有節省 基座材料以及顯示螢幕佔用空間之優點。 綜上所述，雖然本發明已以一較佳實施例揭露如上， 然其並非用以限定本發明。本發明所屬技術領域中具有通 常知識者，在不脫離本發明之精神和範圍内，當可作各種 之更動與潤飾。因此，本發明之保護範圍當視後附之申請 專利範圍所界定者為準。 12 200818073™ 【圖式簡單說明】 第1圖繪示乃傳統上顯示螢幕架設方式之示意圖。 第2圖繪示乃依照本發明一較佳實施例的顯示系統 之立體圖。 第3A圖繪示乃第2圖的升降機構之部份爆炸圖。 第3B圖繪示乃第3A圖的零件之組立圖。 第4A圖繪示乃第2圖的滑動定位部之部份爆炸圖。 第4B圖繪示乃第4A圖的零件之組立圖。 第5A〜5C、6A〜6C圖繪示乃第2圖顯示系統於操作 時之側視圖。 【主要元件符號說明】 10、 20 :顯示螢幕 11、 22 :基座 12 :套筒 13 :支撐柱 14 :底板 21 :升降機構 23、24 :樞軸組件 221、222 :支撐臂 230、 240 :滑動定位部 231、 241 :旋轉部 231A、241A :螺帽 231B、241B :螺栓 13.iV3069PA 200818073. For example, the two outer slide rails can replace the two inner slide rails with two second second cylinder members, and the other design two combines the first tubular member with the rotating portion, and the second cylinder is connected to the rotating portion. The two ends of the constant-force spring are respectively connected to the first screen and provide the function of displaying the sliding of the screen. For the operation of the lifting mechanism, please refer to pages 5a to 5c. Figure 2 is a side view showing the system during operation. As shown in FIG. 2, the display screen 20 has a predetermined position P on the base 22, and the display 22 has a predetermined position P. Preferably, when the display screen 20 is located at the predetermined position p, the display 20 is displayed. The center of gravity is substantially aligned with the two rotating portions 231, 241 (not shown in Fig. 5A). At this time, no matter whether the display screen 2 is rotated clockwise (see Fig. 5B) or counterclockwise (see Fig. 5C), no additional torque is applied to the base 22. Of course, the design of the elevating mechanism 使得 causes the display screen 20 to rotate and move into two independent movements. Therefore, as shown in FIG. 6A, the user can also adjust only the τ% degree of the display screen 20 to display the screen. 20 moves downward relative to the base 22 to the position P' and rotates the angle at which the screen 20 is displayed, as shown in Figs. 6B to 6C. ί The design of the two side supports of the display screen 20 helps to improve the stability of the adjustment display screen 20. At the same time, the present invention has the advantage of material saving as compared to the conventional increase in the floor area to increase the stability. The elevating mechanism and the display system using the same disclosed in the above embodiments of the present invention control the movement of the display screen by the sliding positioning portion of the elevating mechanism, and the display screen is rotated forward and backward by the rotating portion. The sliding positioning part is coupled to the inner and outer sliding joints and is matched with the design of the constant force spring, and the π 200818073~ rotating part connected to the outer sliding is designed as a rotating pivot. The combination of the sliding positioning portion and the rotating portion also provides a function for the user to adjust the display screen height and viewing angle. Since the lifting mechanism is supported by the display screen on both sides of the display screen, the stability of the display screen is increased without increasing the size of the base, which has the advantages of saving the base material and displaying the screen space. In view of the above, the present invention has been disclosed in a preferred embodiment, and is not intended to limit the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. 12 200818073TM [Simple description of the diagram] Figure 1 shows a schematic diagram showing the traditional way of displaying the screen. Figure 2 is a perspective view of a display system in accordance with a preferred embodiment of the present invention. Figure 3A is a partial exploded view of the lifting mechanism of Figure 2. Fig. 3B is a diagram showing the assembly of the parts of Fig. 3A. Fig. 4A is a partial exploded view of the sliding positioning portion of Fig. 2; Fig. 4B is a diagram showing the assembly of the parts of Fig. 4A. 5A to 5C and 6A to 6C are diagrams showing a side view of the system during operation. [Main component symbol description] 10, 20: display screen 11, 22: pedestal 12: sleeve 13: support column 14: bottom plate 21: lifting mechanism 23, 24: pivot assembly 221, 222: support arms 230, 240: Sliding positioning portions 231, 241: rotating portions 231A, 241A: nuts 231B, 241B: bolts 13
200818073W3〇69PA 232、 242 :外滑轨 233、 243 :内滑軌 234、 244 :定力彈簧 234A、244A :捲片端 235、 245 :滾筒 235A、251A、252A :孔 236、 246 :隔件 250 :擋板 251 :第一固定板 252 :第二固定板 P :預定位置 P’ ：位置 14200818073W3〇69PA 232, 242: outer slide rails 233, 243: inner slide rails 234, 244: constant force springs 234A, 244A: winding end 235, 245: rollers 235A, 251A, 252A: holes 236, 246: spacer 250: Baffle 251: first fixing plate 252: second fixing plate P: predetermined position P': position 14