M349500 八、新型說明： 【新型所屬之技術領域】 本創作是有關於一種液晶顯示器，且特別是有關於一 種具有易於解除或恢復升降操作所需之上升彈力的彈力定 位裝置之液晶顯示器及其液晶面板升降底座。 【先前技術】 隨著資訊科技的發達，具有用以顯示圖像之螢幕的監 也ΐί愈大’監視器的種類也由早期的陰極射: Ί'τ)，進至今曰更為輕薄之液晶顯M349500 VIII. New description: [New technical field] The present invention relates to a liquid crystal display, and more particularly to a liquid crystal display having a spring positioning device capable of releasing or restoring the rising elastic force required for lifting operation and a liquid crystal thereof Panel lift base. [Prior Art] With the development of information technology, the monitors that have the screens for displaying images are also larger. The types of monitors are also shot by the early cathodes: Ί'τ), which has become a lighter and thinner LCD. Display
Crystal D1Splay，簡稱 lcd)。 qUld 當液晶顯示器放置在卓 之視線位置，來調整液晶;液==使用者 度，以利於使用者使用之舒角 習知-種^ 讀制者難之所需。 力彈簣來提供上之液晶面板升降底座，係藉由定 降定位，是以液g 准此種液晶面板升降底座的升 •平衡而定位，因反之重力與定力彈簧之上升彈力取得 就必須在液晶顯；w , ”肩不器之液晶面板的升降， 惟，當液晶顯示^正吊使用狀態下，才能正常操作:。 晶面板降至最低位'包裝時，通常會將液晶顯示器 最低位置，3 =時’僅是將液晶面极降ί 能在打開包袭g±、 疋力彈叉之扭力予以解除， ”因液晶面板之突然彈出而使得人= 5 M349500 傷害，實不符產品之安全規範要求。 【新型内容】 >· * 有鑑於此，本創作之目的是提供一種液晶顯示器及其 液晶面板升降底座，其具有易於解除或恢復升降操作所需 之上升彈力的彈力定位裝置，除可防止打開包裝時之突然 彈出，以致造成人員傷害外，更易於取出時，自動恢復液 晶面板之升降操作功能。 • 為達上述及其他目的，本創作提供一種液晶顯示器及 其液晶面板升降底座。此液晶顯示器包括：液晶面板及液 晶面板升降底座，液晶面板升降底座則包括：底座主體、 液晶面板固定架及彈力定位裝置。 其中，底座主體至少具有一滑軌，滑軌係由固定於底 座主體上之固定件與可沿著固定件滑動之活動件所構成。 液晶面板固定架連接於滑執之活動件，用以安裝液晶面 板。彈力定位裝置則具有結合端與作用端，作用端係頂抵 ® 於液晶面板固定架，以提供液晶面板固定架之一上升彈 ‘-力，結合端則依據一連結彈力而可解鎖地連接於底座主 零 '體，以藉由前述之連結彈力來自動恢復升降操作所需之上 升彈力。 在一實施例中，液晶面板固定架包括：支架、定力彈 簧座、心軸、固定板與制動裝置。其中，支架係鎖固於滑 軌之活動件上，並具有一止動軸孔。定力彈簧座係固定於 支架底端，用以抵靠彈力定位裝置之作用端。心轴係穿設 於止動軸孔而連接支架，固定板則受制動裝置之制動而可 M349500 轉動地連接於心軸上。因此，此液晶面板固定架除可相對 於底座主體升降外’亦可相對於底座主體轉動，進而可調 整液晶面板相對於底座主體之旋轉角度。 在—實施例中，底座主體具有一結合孔，而彈力定位 置則包括.鬆懈定力彈簧座、定力彈簧、滑動梢座、兩 =簧二兩螺，。其中，鬆懈定力彈簧座具有一穿孔與兩螺 ’疋力彈簧具有—中心孔、兩侧孔與前述彈力^位裝置 —^疋力彈簧可提供前述之上升彈力。滑動梢座具 =位梢與兩座孔，兩彈簧用以提供連結彈力，而兩螺絲 牙過兩彈簧、滑動梢座之兩座孔、定力彈簧之兩側 孔並，轉败力料紅㈣孔中。 正常使用狀g時’滑動梢座之定位梢係依序穿過定 主#^中心孔、鬆懈定力彈簧座之穿孔，進而滑入底座 面;中而與底座主體相連接。此時，如操作液晶 ，則液晶面板固定架除藉由滑執之活動件，沿著 二執=件升降外’因作為彈力定位裝置之結合端的定位 位梦署、^於底座主體之結合孔中而無法移動，但彈力定 定^彈^力彈f作用端，則因頂抵於液晶面板固定架之 而爾滑執活動件升降，故可提供與液晶面 地操作升=的疋㈣上升彈力，使得液晶面板可以正常 彈力定位裝時,，射以使用工具將作為 孔’達成解鎖之目°^。此時離底^主體之結合 則因彈衫《置健體轉著； M349500 解除了定力科之上升彈力，故不會在打開包裝 時，因液晶面板之突_出而傷害使用人員。 、 :打開包裝並取出液晶顯示料，則可將液晶面板上 升：：端位置，使得彈力定位裝置之定位梢對正底座主體 之結合孔。此時，藉由彈力定位裝置之兩彈簧的連結彈力， 即可將彈力定位裝置之定位梢推入結合孔中，進而恢復與 底座主體之連接，十分方便地達成自動恢復定力彈簧升降 功能之目的。 為讓本創作之上述和其他目的、特徵、和優點能更明 顯易it，下文特以較佳實施例，並配合所附圖式，作詳細 說明如下： 【實施方式】 _ 5月參考圖1至7所示，根據本創作較佳實施例之液晶 ^不益10包括：液晶面板20及液晶面板升降底座30，液 曰曰面板升降底座30係由底座主體31、液晶面板固定架32 及彈力定位裝置33等所構成。底座主體31另設有美化板 面之則蓋313 ’液晶面板2〇則以螺絲21鎖固於液晶面板 升降底座30之液晶面板固定架π上。 圖3中’底座主體31上設置有縱長之兩滑軌311，兩 滑軌311均係由固定於底座主體31上之固定件3111與可 沿著固定件3111上之鋼珠而上下滑動的活動件3112所構 成。圖5至7中’液晶面板固定架32包括：支架321、定 力彈簧座322、心軸323、由墊片3241、3246、彈簧墊片 3242、面板角度定位片3245與螺帽3247所組成之制動裝 M349500 置324及由面板旋轉座3251、耐磨片3254、3255、面板 3252與面板蓋3253組成之固定板325。彈力定位裝置33 ， 包括鬆懈定力彈簧座331、定力彈簧332、滑動梢座333、 兩彈簧334與兩螺絲335。 組裝時，將彈力定位裝置33之兩螺絲335分別穿過兩 彈簧334、滑動梢座333之兩座孔3331、定力彈簧332結 合端之兩侧孔3321而鎖固於鬆懈定力彈簧座331之兩螺孔 3311，之後，將定力彈簧332之作用端3犯2貼靠定力彈簧 f 322底端，滑動梢座333與鬆懈定力彈簧座331底面貼 靠支架321的平台3212，以藉由定力彈簧332向上捲縮之 彈力將彈力定位裝置33卡合於支架321上（請參圖4)。 因定力彈簧座322係㈣於支架321底端，而支架321則 分別以，絲393鎖固於滑軌311之活動件3112上，故支架 .321與疋力彈簧座322即得以隨著滑軌犯之活動件3H2 的移動而上升或下降。 ‘ 作支架321上升至底座主體31之頂端時，由於彈 、^梢33之滑動梢座333上設置有定位梢3332，而 =Γ係受兩彈簧334所提供之連結彈力推向底座 力彈笪得滑動梢座333之定位梢3332可依序穿過定 咖:而可解之^L3323、鬆懈定力彈菁座331之穿孔 參圖5與圖t) 底座主體31上之結合孔312 (請 架32，L 乍下降裝置有液晶面板20之液晶面板固定 接於底座主體^位^置33之結合端的定位梢3332，係連 '之結合孔312中而無法隨著液晶面板固定 M349500 β 32升降’使传固定於支架321底端之定力彈_ 得以推動而將定力彈簧332之作用端繼予以展广2 ’ 由定力彈簧332捲縮之上升彈力與液晶面板並藉 衡而定位。使用者如欲操作升降時，則施 ^的平 向之力，並料降至適當位置時停止施力 ，向下方 得以重新取得平衡而停留在適當之高产。 饮日日面板20 另外，當包裝液晶顯示器1〇時，二可以 力定位裝置33之定位梢3332，推離底座主體彈 312而解鎖。此時，如操作升降液晶面板20，則因二口孔 係隨著液晶面板固定架32之升降操作1^架321 裝置33亦整體地隨著支架321之升降而移:，^彈力定位 力彈簧332之上升彈力，確保 可解除定 面板20之突然彈出而傷害使用人員倾開4日”因液晶 當液晶顯示器10由包装中^時1 面板20至鎖定位置，使得彈 ”升液晶 對正底座主體31之結合孔312，j位梢觀 之兩彈簧334的連結彈力 日 疋位裝置33 3332 31 I' 主體二1 t連接，達成自動恢復升降功能之：復其與底座 主體31之社人孔Γ置33之定位梢3332與底座 斑自動復^口处之Γ限達成具有定力彈簧微扭力鬆懈 〆、自動復原功月b之升降操作 30之液晶面板固定_32 卜此液曰曰面板升降底座 日面柘Μ 具有隨使用者之喜好而調整液 曰曰面板=之旋轉角度的功能，說明如下。 如賴述，液晶面板固定架32之支架321 ’係以螺絲 M349500 393鎖固於滑執311之活動件3112上，以提供升降操作之 功能，惟，為提供使用者可調整液晶面板2〇之旋轉角度的 功能，液晶面板20並非單純地鎖固於支架321上，而係將 心軸323依序穿過墊片3241、彈簧墊片3242、耐磨片犯 面板旋轉座3251、耐磨片3255、面板角度定位片3245、 支架321之止動軸孔3211、墊片3246而與螺帽32〇相結 合，形成了面板旋轉座3251以連接於支架321之心軸323 為旋轉軸，相對於支架321旋轉、並受包括墊片3241、 3246、彈簧墊片3242、面板角度定位片3245與螺帽3247 構成之制動裝置324制動的旋轉操作機構。 液晶面板20相對於支架321之旋轉操作的角度，係受 面板旋轉座3251上之弧形溝槽32511的弧度所限制，而面 板3252與面板蓋3253則以螺絲391鎖固於面板旋轉座 3251 ’以構成安裝液晶面板2〇之固定板325。 前述實施例中，其彈力定位裝置33雖包括鬆懈定力彈 簧座331、定力彈簧332、滑動梢座333、兩彈簧334與兩 螺絲335，並藉由彈力定位裝置33之定位梢3332與底座 主體31之結合孔312，來達成具有定力彈簧332扭力鬆懈 與自動恢復功能之升降操作機構。惟熟習此藝者應知，任 何可提供液晶面板固定架32之上升彈力，並同時提供可解 鎖地連接於底座主體31及自動恢復鎖定之連結彈力的彈 力定位裝置33，均為可行之作法。 例如’將定位梢3 3 3 2改為橫向之定位桿，並配合將結 合孔312改為橫向之結合溝’或甚至將結合孔gig或結合 溝設置於定力彈簧332上，並於底座主體31上配置有能提 11 M3495G0 供連結彈力之彈力定位機構，以鎖定或解除鎖定定力彈簀 332之結合端，達成定力彈簧332扭力鬆懈與自動恢復功 能等’均為可行之不同作法。 另外’前述液晶面板固定架32雖以包括墊片3241、 3246、彈簧墊片3242、面板角度定位片3245與螺帽3247 戶斤'組成之制動裝置324，以及由面板旋轉座3251、财磨片 3254、3255、面板3252與面板蓋3253組成之固芩板325 等’搭配支架321、定力彈簧座322與心轴323所構成， 惟熟習此藝者應知，任何可鎖固液晶面板20,並隨滑軌311 之活動件3112升降的液晶面板固定架32，亦均為可行之 作法。 雖然本創作已以較佳實施例揭露如上，然其並非用以 限定本創作，任何熟習此技藝者，在不脫離本創作之精神 和範圍内所作之各種更動與潤飾，亦屬本創作之範圍。因 此，本創作之保護範圍當視後附之申請專利範圍所界定者 為準。 12 M349500 【圖式簡單說明】 圖1係顯示根據本創作較佳實施例之一種液晶顯示器 立體圖。 圖2係顯示圖1之液晶顯示器的液晶面板升降底座立 體圖。 圖3係顯示圖2之液晶面板升降底座部分分解立體圖。 圖4係顯示圖3之另一角度圖示。 圖5係顯示圖4之進一步分解圖。 圖6係顯示圖5中標示6之部分放大圖。 圖7係顯示圖5中標示7之部分放大圖。 【主要元件符號說明】 10液晶顯示器 2 0液晶面板 21、323、335、391、393 螺絲 30液晶面板升降底座 31底座主體 311滑執 3111固定件 3112活動件 312結合孔 313前蓋 32液晶面板固定架 321支架 3211止動軸孔 13 M349500 3212平台 322定力彈簧座 3 2 3心轴 324制動裝置 3241、3246 墊片 3242彈簧墊片 3254、3255耐磨片 3245面板角度定位片 3247螺帽 325固定板 3251面板旋轉座 32511弧形溝槽 3252面板 3 2 5 3面板蓋 33彈力定位裝置 331鬆懈定力彈箐座 3311螺孔 3312穿孔 332定力彈簧 3321侧孔 3322作用端 3323中心孔 333滑動梢座 3331座孔 3332定位梢 334彈簧Crystal D1Splay, referred to as lcd). qUld When the LCD monitor is placed in the line of sight, to adjust the liquid crystal; liquid == user degree, in order to facilitate the use of the user's comfortable angle - the kind of ^ is difficult for the reader. The force of the magazine to provide the upper and lower liquid crystal panel lifting base is determined by the positioning of the liquid drop, and the positioning of the lifting and balancing base of the liquid crystal panel is determined by the liquid g, and the gravity and the rising spring force of the constant force spring must be obtained. In the liquid crystal display; w, "the lift of the LCD panel of the shoulder, but when the liquid crystal display ^ is in the state of use, it can be operated normally: The crystal panel is reduced to the lowest position 'When packaging, the lowest position of the liquid crystal display is usually , 3 = when 'only the liquid crystal surface is lowered ί can be released after the opening of the attack g±, the force of the forceful fork," due to the sudden pop-up of the LCD panel, causing people = 5 M349500 damage, it does not match the safety of the product requirements. [New Content] >· * In view of this, the purpose of the present invention is to provide a liquid crystal display and a liquid crystal panel lifting base thereof, which have an elastic positioning device which is easy to release or restore the lifting force required for lifting operation, except for preventing opening. When the packaging suddenly pops up, resulting in personal injury, it is easier to remove, automatically restore the lifting function of the LCD panel. • For these and other purposes, this creation provides a liquid crystal display and its LCD panel lift base. The liquid crystal display comprises: a liquid crystal panel and a liquid crystal panel lifting base, and the liquid crystal panel lifting base comprises: a base body, a liquid crystal panel fixing frame and an elastic positioning device. Wherein, the base body has at least one slide rail, and the slide rail is composed of a fixing member fixed to the base body and a movable member slidable along the fixing member. The LCD panel mount is attached to the sliding movable member for mounting the LCD panel. The elastic positioning device has a combined end and an active end, and the working end is topped against the liquid crystal panel fixing frame to provide a rising elastic force of the liquid crystal panel fixing frame, and the combined end is unlockably connected according to a connecting elastic force. The main zero body of the base is used to automatically restore the rising elastic force required for the lifting operation by the aforementioned connecting elastic force. In one embodiment, the liquid crystal panel mount includes: a bracket, a constant force spring mount, a spindle, a fixed plate, and a brake device. Wherein, the bracket is locked on the movable member of the slide rail and has a stop shaft hole. The fixed force spring seat is fixed to the bottom end of the bracket for abutting against the active end of the elastic positioning device. The mandrel is threaded through the stop shaft hole to connect the bracket, and the fixed plate is braked by the brake device and the M349500 is rotatably coupled to the mandrel. Therefore, the liquid crystal panel holder can be rotated relative to the base body in addition to being lifted and lowered relative to the base body, thereby adjusting the rotation angle of the liquid crystal panel relative to the base body. In the embodiment, the base body has a coupling hole, and the elastic positioning means includes a loose force spring seat, a constant force spring, a sliding tip seat, and two = spring two screws. Wherein, the slackening force spring seat has a perforation and two screw springs having a center hole, two side holes and the aforementioned elastic force device, and the spring force can provide the aforementioned rising elastic force. Sliding tip seat=position and two holes, two springs are used to provide the connecting elastic force, and the two screws pass the two springs, the two holes of the sliding tip seat, the two sides of the fixed force spring, and the red material is turned red (4) In the hole. When the g is used normally, the positioning tip of the sliding tip holder passes through the center hole of the main body, the perforation of the loose spring seat, and then slides into the base surface; and is connected to the main body of the base. At this time, if the liquid crystal is operated, the liquid crystal panel fixing frame is moved by the movable member of the sliding device, and the positioning hole of the base of the base body is used as the positioning end of the elastic positioning device. In the middle, it is impossible to move, but the elastic force is fixed. ^The force is applied to the end of the liquid force. As the top is pressed against the liquid crystal panel holder, the movable member moves up and down, so it can provide the 疋(4) rise with the liquid crystal surface operation. The elastic force enables the liquid crystal panel to be properly elastically positioned, and the use of the tool will act as a hole to achieve the unlocking goal. At this time, the combination of the bottom and the main body is changed by the body of the shirt. The M349500 removes the rising elasticity of the Dingli Branch, so it will not hurt the user due to the sudden emergence of the LCD panel when the package is opened. , : Open the package and take out the liquid crystal display material, then lift the liquid crystal panel up to: the end position, so that the positioning tip of the elastic positioning device aligns with the joint hole of the base body. At this time, by the elastic force of the two springs of the elastic positioning device, the positioning end of the elastic positioning device can be pushed into the coupling hole, thereby restoring the connection with the base body, and the automatic recovery of the constant force spring lifting function is conveniently achieved. purpose. The above and other objects, features, and advantages of the present invention will become more apparent. The following detailed description of the preferred embodiments, together with the accompanying drawings, will be described as follows: [Embodiment] _ May reference FIG. As shown in FIG. 7, the liquid crystal panel 10 according to the preferred embodiment of the present invention includes: a liquid crystal panel 20 and a liquid crystal panel lifting base 30, and the liquid panel lifting base 30 is composed of a base body 31, a liquid crystal panel fixing frame 32, and an elastic force. The positioning device 33 and the like are configured. The base body 31 is further provided with a beautifying panel, and the cover 313' is also fastened to the liquid crystal panel holder π of the liquid crystal panel lifting base 30 by screws 21. In FIG. 3, the base body 31 is provided with two longitudinally sliding rails 311, and both of the sliding rails 311 are movably moved up and down by the fixing members 3111 fixed to the base body 31 and the steel balls which can be along the fixing members 3111. The component 3112 is constructed. 5 to 7 'the liquid crystal panel holder 32 includes: a bracket 321, a fixed force spring seat 322, a spindle 323, a spacer 3241, 3246, a spring washer 3242, a panel angle positioning piece 3245 and a nut 3247. The brake mounting M349500 is provided with a fixing plate 325 composed of a panel rotating seat 3251, a wear piece 3254, a 3255, a panel 3252 and a panel cover 3253. The elastic positioning device 33 includes a loosening force spring seat 331, a constant force spring 332, a sliding tip 333, two springs 334 and two screws 335. During assembly, the two screws 335 of the elastic positioning device 33 are respectively passed through the two springs 334, the two holes 3331 of the sliding tip 333, and the two holes 3321 of the combined end of the fixed force spring 332 to be locked to the loose force spring seat 331. After the two screw holes 3311, the working end 3 of the fixed force spring 332 is pressed against the bottom end of the fixed force spring f 322, and the sliding tip seat 333 and the bottom surface of the loosening force spring seat 331 abut against the platform 3212 of the bracket 321 The elastic positioning device 33 is engaged with the bracket 321 by the elastic force of the fixed force spring 332 to be crimped upward (refer to FIG. 4). Because the fixed force spring seat 322 is (four) at the bottom end of the bracket 321 , and the bracket 321 is locked to the movable member 3112 of the slide rail 311 by the wire 393 respectively, the bracket 321 and the spring force spring seat 322 can be slid The movement of the orbital 3H2 moves up or down. When the bracket 321 is raised to the top end of the base body 31, since the sliding tip 333 of the spring and the tip 33 is provided with the positioning tip 3332, the Γ system is pushed by the connecting elastic force provided by the two springs 334 toward the base force bomb. The positioning tip 3332 of the sliding pedestal 333 can pass through the fixed coffee in sequence: the solvable piece L333, the puncturing of the detachable force 331 seat, and the coupling hole 312 on the base body 31 ( The frame 32, the L 乍 lowering device has a liquid crystal panel 20 of the liquid crystal panel 20 fixedly attached to the joint end 3332 of the joint end of the base body 33, which is connected in the 'bonding hole 312' and cannot be fixed with the liquid crystal panel M349500 β 32 The lifting force enables the fixed-force projectile _ that is fixed to the bottom end of the bracket 321 to be pushed to extend the working end of the fixed-force spring 332 to be extended 2' by the rising elastic force of the constant-force spring 332 and the liquid crystal panel If the user wants to operate the lift, the force of the flat force is applied, and when the material is lowered to the proper position, the force is stopped, and the balance is restored to the lower position and stays at the appropriate high yield. Drinking day panel 20 In addition, when When packaging the LCD monitor 1 ,, the second can force the positioning The positioning tip 3332 of the 33 is pushed away from the base body bomb 312. At this time, if the liquid crystal panel 20 is operated and lowered, the two holes are integrally operated with the lifting operation of the liquid crystal panel holder 32. As the bracket 321 moves up and down: ^, the spring force of the spring force 332 is increased, ensuring that the sudden pop-up of the fixed panel 20 can be released and the user is in danger of being tilted for 4 days" due to the liquid crystal when the liquid crystal display 10 is packaged. The panel 20 is in the locked position, so that the elastic liquid is aligned with the coupling hole 312 of the base body 31, and the connecting springs of the two springs 334 of the j-position are connected to the main body device 33 3332 31 I' main body 2 t connection, achieving automatic recovery The lifting function is: the positioning tip 3332 of the social hole hole 33 of the base body 31 and the limit of the automatic re-compression of the base spot are achieved, and the lifting force of the constant force spring micro-torque is relaxed, and the automatic recovery power b is lifted. 30 LCD panel fixed _32 卜 曰曰 曰曰 曰曰 升降 升降 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ 柘Μ Branch The 321 ' is fastened to the movable member 3112 of the slide 311 by a screw M349500 393 to provide a function of lifting operation. However, in order to provide a function for the user to adjust the rotation angle of the liquid crystal panel 2, the liquid crystal panel 20 is not simply The main shaft 323 is locked on the bracket 321 , and the mandrel 323 is sequentially passed through the spacer 3241 , the spring washer 3242 , the wear-resistant piece , the panel rotating seat 3251 , the wear-resistant piece 3255 , the panel angle positioning piece 3245 , and the bracket 321 . The shaft hole 3211 and the spacer 3246 are combined with the nut 32 , to form a panel rotating seat 3251 to be coupled to the spindle 323 of the bracket 321 as a rotating shaft, rotated relative to the bracket 321 and received by the spacers 3241 and 3246. The spring washer 3242, the panel angle positioning piece 3245 and the nut 3247 constitute a rotary operating mechanism for braking the brake device 324. The angle of rotation of the liquid crystal panel 20 relative to the bracket 321 is limited by the curvature of the curved groove 32511 on the panel rotating seat 3251, and the panel 3252 and the panel cover 3253 are locked by the screw 391 to the panel rotating seat 3251 ' To constitute the fixing plate 325 on which the liquid crystal panel 2 is mounted. In the foregoing embodiment, the elastic positioning device 33 includes a loosening force spring seat 331, a constant force spring 332, a sliding tip 333, two springs 334 and two screws 335, and the positioning tip 3332 and the base of the elastic positioning device 33. The coupling hole 312 of the main body 31 is used to achieve a lifting operation mechanism having a torsion relaxation and an automatic recovery function of the constant force spring 332. However, those skilled in the art should be aware that any elastic positioning device 33 that can provide the rising elastic force of the liquid crystal panel holder 32 and at the same time be detachably connected to the base body 31 and automatically restore the locked elastic force is feasible. For example, 'the positioning tip 3 3 3 2 is changed to the horizontal positioning rod, and the coupling hole 312 is changed to the lateral coupling groove' or even the coupling hole gig or the coupling groove is set on the constant force spring 332, and the base body is The 31 is equipped with a spring positioning mechanism capable of providing 11 M3495G0 for connecting elastic force, in order to lock or unlock the combined end of the fixed force magazine 332, and the torque relaxation and automatic recovery function of the constant force spring 332 are all feasible. In addition, the aforementioned liquid crystal panel fixing frame 32 includes a braking device 324 including a gasket 3241, 3246, a spring gasket 3242, a panel angle positioning piece 3245 and a nut 3247, and a panel rotating base 3251. 3254, 3255, panel 3252 and panel cover 3253 consisting of a solid plate 325, etc. 'matching bracket 321, fixed-force spring seat 322 and mandrel 323, but as known to those skilled in the art, any lockable liquid crystal panel 20, It is also feasible to use the liquid crystal panel holder 32 that moves up and down with the movable member 3112 of the slide rail 311. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the scope of the present invention. Any modifications and refinements made by those skilled in the art without departing from the spirit and scope of the present invention are also within the scope of the present invention. . Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application. 12 M349500 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a liquid crystal display according to a preferred embodiment of the present invention. Fig. 2 is a perspective view showing the liquid crystal panel lifting base of the liquid crystal display of Fig. 1. 3 is an exploded perspective view showing a portion of the liquid crystal panel lifting base of FIG. 2. Figure 4 is a diagram showing another angle of Figure 3. Figure 5 is a further exploded view of Figure 4. Figure 6 is a partial enlarged view showing the numeral 6 in Figure 5. Fig. 7 is a partial enlarged view showing the numeral 7 in Fig. 5. [Main component symbol description] 10 liquid crystal display 2 0 liquid crystal panel 21, 323, 335, 391, 393 screw 30 liquid crystal panel lifting base 31 base body 311 sliding 3111 fixing member 3112 movable member 312 combined hole 313 front cover 32 liquid crystal panel fixed Frame 321 bracket 3211 stop shaft hole 13 M349500 3212 platform 322 force spring seat 3 2 3 spindle 324 brake device 3241, 3246 gasket 3242 spring washer 3254, 3255 wear plate 3245 panel angle positioning piece 3247 nut 325 fixed Plate 3251 panel rotating seat 32511 curved groove 3252 panel 3 2 5 3 panel cover 33 elastic positioning device 331 loose and constant force elastic seat 3311 screw hole 3312 perforation 332 constant force spring 3321 side hole 3322 acting end 3323 central hole 333 sliding tip Block 3331 hole 3332 positioning tip 334 spring