200841072 .九、發明說明： 【發明所屬之技術領域】 Μ 本發明係關於一種液晶顯示裝置。 【先前技術】 隨著電子科技的進步’人們對於輕薄短小、耗電量低 的顯示器的需求日益增加。液晶顯示裝置由於具有耗電量 低、發熱量少、重量輕、無輻射及晝面柔和等優點，因此 具有逐步取代傳統的陰極射線管顯示器之趨勢。 請參閱圖1，係一種先前技術液晶顯示裝置之結構示 意圖。該液晶顯示裝置100包括一前框12〇、一顯示面板 '130、一屏蔽罩140、一鎖固結構15〇、一後殼16〇及一支 撐底座170。該屏蔽罩140與該顯示面板13〇卡固成一體， 該鎖固結構150設置於該屏蔽罩14〇遠離該顯示面板 之表面。該前框120與該後殼16〇卡合收容該顯示面板 130、該屏蔽罩140與該鎖固結構15〇。該支撐底座17〇藉 籲由與該鎖固結構150之卡合可拆卸地設置於該後殼16〇 上’以支攩該液晶顯示裝置1 〇〇。 該屏蔽罩140遠離該顯示面板13〇之表面具有一容納 槽141、一定位柱143及一彈性件（圖未示）。該彈性件設置 於該容納槽141之底部，其受擠壓後可提供彈性恢復力。 該定位柱143之材質為合金，其凸設於該容納槽141内， 定位該鎖固結構15〇。 請一併參閲圖2，係圖i所示之鎖固結構15〇之具體 結構放大示意圖。該鎖固結構15〇包括一活動栓151、一 6 200841072 與該活動栓151配合之釋放按鈕158及二固持件（未標 示）。該二固持件固定該活動栓151於該屏蔽罩140之容納 ‘槽141内。該活動栓151包括一滑動背板152、二卡合接 頭153、一按鈕咬合面154、二卡固槽155及一定位開口 157。該二卡合接頭153均為楔形，凸出於該滑動背板152 之表面，且該二卡合接頭153與該滑動背板152之間具有 一定間隙，形成該二卡固槽155 ;該按鈕咬合面154係一 突出於該滑動背板152之斜面，其位於該二卡合接頭153 _之間；該定位開口 157將該按鈕咬合面154分成左右兩部 份，且與該屏蔽罩140之定位柱143對應。 該釋放按鈕158包括一按鈕主體1581及一與之配合之 、鈕帽1582。該鈕帽1582為塑料製品，該按鈕主體1581則 由金屬材質製成，其包括一中空的中空圓柱1583及設置於 該中空圓柱1583 —端之一矩形塊1584，該中空圓柱1583 之中空部份與該屏蔽罩140之定位柱143對應，該矩形塊 1584之一侧面（未標示）為與該按鈕咬合面154對應吻合 ®之斜面。按壓該釋放按鈕158，可使該鎖固結構150釋放 其與該支撐底座170之卡合。 該後殼160包括一接頭接收器161及與其配合之一通 孔162。該通孔162對應該釋放按鈕158設置，該釋放按 鈕158之鈕帽1582藉由該通孔162伸出至該後殼160外。 該支撐底座170包括一脫離板171及與該脫離板171 樞接之一支架172。該脫離板171與該鎖固結構150配合， 並收容於該後殼160之接頭接收器161内。 7 200841072 ^ 組裝該液晶顯示裝置100時，首先，該屏蔽罩140與 該顯示面板130卡固成一體；然後，固定該鎖固結構150 之活動栓151於該屏蔽罩140之容納槽141内，將該釋放 按鈕158之中空圓柱1583與鈕帽1582扣合，在將該釋放 按鈕158之中空圓柱1583的一端套於該定位柱143上；接 下來，藉由讓後殼160與該前框120之卡合以收容顯示面 板130及該屏蔽罩140,則該鎖固結構150之釋放按鈕158 之鈕帽1582藉由該後殼160之通孔162伸出該後殼160， ⑩該鎖固結構150之二卡合接頭153亦對應該後殼160之接 頭接收器161設置；最後，將該支撐底座170之脫離板171 、與該鎖固結構150之二卡合接頭153對應卡合，則該支撐 、底座170對應卡固於該後殼160之接頭接收器161内，完 成該液晶顯示裝置100之組裝。拆卸該支撐底座170時， 按壓該伸出於該後殼160之釋放按鈕158，則該釋放按鈕 158沿該活動栓151之按鈕咬合面154向下滑，推動該活 動栓151後退且擠壓該彈性件，則該二卡合接頭153後退 #以鬆開與該脫離板171之卡合，再從該接頭接收器161中 抽出該脫離板171，拆卸該支撐底座170 ;同時，該活動栓 151在該彈性件之恢復力作用下返回，該釋放按鈕158復 位。 在拆裝的過程中，藉由該釋放按鈕158平貼該活動栓 151之按鈕咬合面154下滑以推動該活動栓151滑動，使 該二卡合接頭153與該脫離板171脫離或卡合，從而實現 於該液晶顯示裝置100上拆裝該支撐底座170。惟，該釋 8 200841072 放按鈕158與該按鈕咬合面154為面與面的接觸，需要接 觸面積大，易出現未完全平貼配合狀態，導致受力不均， 使得該活動栓151滑動困難，按壓該釋放按鈕158所需之 外力大，使得拆卸難度大。另，該活動栓151滑動困難亦 會使該釋放按鈕158復位不完全，亦會導致下次組裝之困 難。 【發明内容】 有鑑於上述内容，提供一種易拆裝之液晶顯示裝置實 ⑩為必要。 一種液晶顯示裝置，其包括一顯示模組、一鎖固結構、 v —後殼及一支樓底座，該顯示模組包括一屏蔽罩，該後殼 '與該屏蔽罩卡合，該支撐底座對應該後殼設置，該鎖固結 構挾持於該屏蔽罩於該後殼之間，且伸出該後殼，其包括 一活動栓及一與該活動栓配合之釋放按鈕，該活動栓包括 一按鈕咬合面，該釋放按鈕之一侧面具有二長肋，該釋放 按紐之二長肋沿該按姐咬合面滑動以控制該鎖固結構可拆 *卸式安裝該支撐底座於該後殼。 相較於先前技術，本發明液晶顯示裝置在按壓該按鈕 沿該按鈕咬合面下滑以推動該活動栓時，由於設置二長肋 於該釋放按鈕之一侧面上，使得該釋放按鈕與該活動栓之 按鈕咬合面的接觸面減少，使得該按鈕滑動軌跡平滑，易 推動該釋放按鈕；從而易實現該鎖固結構與該支撐底座之 脫離以拆卸該支撐底座。同理可知，該釋放按鈕受力返回 時，亦容易復位，使得該液晶顯示裝置在第二次組裝時易 9 200841072 藉由該按紐推動該活動栓滑動以組裝該支撐底座。 【實施方式】 ^ 請參閱圖3，係本發明液晶顯示裝置一較佳實施方式 之結構示意圖。該液晶顯示裝置200包括一前框220、一 顯示面板230、一屏蔽罩240、一鎖固結構250、一後殼260 及一支撐底座270。該屏蔽罩240與該顯示面板230卡固 成一體，該鎖固結構250設置於該屏蔽罩240遠離該顯示 面板230之表面。該前框220與該後殼260卡合收容該顯 •示面板230、該屏蔽罩240與該鎖固結構250。該支撐底座 270藉由該鎖固結構250可拆卸地設置於該後殼260上， 以組裝該液晶顯示裝置200。該屏蔽罩240遠離該顯示面 板230之表面設有一容納槽241及一設置於該容納槽241 底部之彈性件（圖未示）。該容納槽241用以收容該鎖固結 構 250。 請一併參閱圖4，係圖3所示之鎖固結構250之具體 結構放大示意圖。該鎖固結構250包括一活動栓251、一 ⑩與該活動栓251配合之釋放按鈕258及二相互平行的固持 件259，該活動栓251藉由該二固持件259固定於該屏蔽 罩240之容納槽241内。該活動栓251包括一滑動背板 252、二卡合接頭253、一按鈕咬合面254、二卡固槽255、 二固持槽256及一開口 257。該二卡合接頭253均為楔形， 凸設於該滑動背板252之表面，且與該滑動背板252具有 一定距離，形成該二卡固槽255 ;該按鈕咬合面254係一 凸出於該滑動背板252之斜面，且設置於該二卡合接頭253 200841072 之間。該開口 257平分該按鈕咬合面254為左右二部份， 為該釋放按鈕258提供滑動空間。該二固持槽256分別設 ΐ於該二卡合接頭253與該按鈕咬合面254之間，且與該 二固持件259配合。該釋放按鈕258包括一鈕帽2583及與 該鈕帽2583 —端相連之一矩形塊2584。該鈕帽2583為圓 柱形，且與矩形塊2584係一體成型，其材質為聚曱醛及 25%玻璃纖維的混合物。該釋放按鈕258之矩形塊2584可 沿該按奴咬合面254滑動。 ⑩ 請一併參閱圖5,係圖4所示之釋放按鈕258另一視 角圖。該矩形塊2584包括一侧面2585，該侧面2585上設 置二相互平行之長肋2586，該二長肋2586可與該按鈕咬 • 合面254對應貼合。按壓該釋放按鈕258，可使該鎖固結 構150釋放其與該支撐底座270之卡合。 該後殼260包括一接頭接收器261、一與該接頭接收 器261配合之通孔262、二導向柱265及一擋板266。該二 導向柱265係二根圓柱，該擋板266及該二導向柱265均 •靠近該通孔262設置，且位於該後殼260之内表面。該二 導向柱265可將該釋放按鈕258直接組裝於該後殼260 上，且該釋放按鈕258之鈕帽2583藉由該通孔262伸出至 該後殼260外。該擋板266防止該釋放按鈕258從該後殼 260脫落。該接頭接收器261為設置於該後殼260外表面 之一内陷的矩形開口區域，其四側壁（未標示）設置複數連 接槽263及一對配合槽264。其中該一對配合槽264與該 二卡合接頭253對應設置。 11 200841072 該支撐底座270包括一脫離板271及與該脫離板271 k接之一支架273。該脫離板271四周向外延伸複數第一 ‘接頭2711及二第二接頭2713，該第一接頭2711可卡入其 對應該後殼260之連接槽263，該第二接頭2713與該後殼 260之一對配合槽264對應設置，進而可與該鎖固結構250 之二卡合接頭253分別卡合。 請再參閱圖6，係本發明液晶顯示裝置200之組裝示 意圖。組裝該液晶顯示裝置200時，首先，該屏蔽罩240 ⑩與該顯示面板230卡固成一體；然後，藉由該二固持件259 固定該鎖固結構250於該容納槽241内，再將該鎖固結構 250之釋放按鈕258對應卡入該後殼260之二導向柱265 上，使其鈕帽2583由該後殼260之通孔262伸出該後殼 260，然後，將該後殼260與該前框220卡合收容該顯示面 板230、該屏蔽罩240及該鎖固結構250，該鎖固結構250 之二卡合接頭253對應該後殼260之一對配合槽264設 置；最後，將該支撐底座270之脫離板271之複數第一接 _頭2711卡入該後殼260之連接槽263内，該二第二接頭 2713亦分別卡入其對應之配合槽264内，且沿該配合槽264 内之二卡合接頭253之楔面下滑，卡入該二卡固槽255内， 則該支撐底座270對應卡固於該後殼260之接頭接收器 261内，完成該液晶顯示裝置200之組裝。當需要拆卸該 支撐底座270時，按壓該伸出於該後殼260之釋放按鈕 258,則該釋放按鈕258沿該活動栓251之按鈕咬合面253 向下滑，推動該活動栓251後退且擠壓該彈性件，則該二 12 200841072 卡合接頭253鬆開與該二第二接頭2713之卡合，該二第二 m 接頭2713由該二卡固槽255彈出；同時，該活動栓251 #在該彈性件之恢復力作用下返回，該釋放按鈕258復位， 再抽出該複數第一接頭2711，從而拆卸該支撐底座270於 該液晶顯示裝置200。 本發明之液晶顯示裝置200之鎖固結構250設置二長 肋2586於該釋放按鈕258之一侧面上，使得該釋放按鈕 258與按鈕咬合面253的接觸面減少，從而該釋放按鈕258 ⑩易復位，組裝容易。又因為該釋放按鈕之材質為聚甲醛及 25%玻璃纖維的混合物，此種材質本身不僅較合金便宜， 且其摩擦係數較小，故無須另加潤滑濟，該釋放按鈕即可 輕鬆返回，使得拆裝更容易。另，該釋放按鈕係一體成型 而形成，無須組裝，降低了組裝的難度。還有，該釋放按 鈕258係直接組裝於該後殼260上，故可以防止該釋放按 鈕258在組裝過程中脫落，進一步降低組裝難度。 綜上所述，本發明確已符合發明專利之要件，爰依法 ®提出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，本發明之範圍並不以上述實施方式為限，舉凡熟習本 案技藝之人士援依本發明之精神所作之等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係一種先前技術液晶顯示裝置之結構示意圖。 圖2係圖1所示鎖固結構之具體結構放大示意圖。 圖3係本發明液晶顯示裝置一較佳實施方式之結構示意 13 200841072 圖。 圖4係圖3所示鎖固結構之具體結構放大示意圖。 圖5係圖4所示釋放按鈕另 圖6係圖3所示液晶顯示裝 【主要元件符號說明】 液晶顯示裝置 200 顯示面板 230 容納槽 241 _ 活動栓 251 卡合接頭 253 卡固槽 255 開口 257 鈕帽 2583 侧面 2585 固持件 259 接頭接收器 261 *連接槽 263 導向柱 265 支撐底座 270 第一接頭 2711 支架 273 一視角圖。 置之組裝示意圖。 前框 220 屏蔽罩 240 鎖固結構 250 滑動背板 252 按紐咬合面 254 固持槽 256 釋放按鈕 258 矩形塊 2584 長肋 2586 後殼 260 通孑L 262 配合槽 264 擋板 266 脫離板 271 第二接頭 2713 14200841072. Nine, invention description: [Technical field to which the invention pertains] Μ The present invention relates to a liquid crystal display device. [Prior Art] With the advancement of electronic technology, there is an increasing demand for displays that are light, thin, and low in power consumption. Since the liquid crystal display device has the advantages of low power consumption, low heat generation, light weight, no radiation, and soft surface, it has a tendency to gradually replace the conventional cathode ray tube display. Referring to Fig. 1, a schematic diagram of a prior art liquid crystal display device is shown. The liquid crystal display device 100 includes a front frame 12A, a display panel '130, a shield cover 140, a locking structure 15A, a rear case 16A, and a support base 170. The shielding cover 140 is integrally formed with the display panel 13A. The locking structure 150 is disposed on a surface of the shielding cover 14 away from the display panel. The front frame 120 and the rear case 16 are engaged to receive the display panel 130, the shield cover 140 and the locking structure 15A. The support base 17 is detachably disposed on the rear case 16'' by the engagement with the locking structure 150 to support the liquid crystal display device 1''. The surface of the shielding cover 140 away from the display panel 13 has a receiving groove 141, a positioning post 143 and an elastic member (not shown). The elastic member is disposed at the bottom of the receiving groove 141, and is pressed to provide an elastic restoring force. The positioning post 143 is made of an alloy, and is protruded from the receiving groove 141 to position the locking structure 15〇. Please refer to FIG. 2 together with an enlarged schematic view of the specific structure of the locking structure 15 shown in FIG. The locking structure 15 includes a movable pin 151, a 6200841072 release button 158 and two retaining members (not shown) that cooperate with the movable pin 151. The two retaining members fix the movable pin 151 in the receiving groove 141 of the shielding cover 140. The movable pin 151 includes a sliding back plate 152, two engaging connectors 153, a button engaging surface 154, two locking grooves 155 and a positioning opening 157. The two latching joints 153 are wedge-shaped and protrude from the surface of the sliding back plate 152, and a gap is formed between the two engaging joints 153 and the sliding backing plate 152 to form the two locking grooves 155; The occlusal surface 154 is protruded from the inclined surface of the sliding back plate 152 and is located between the two engaging joints 153 _; the positioning opening 157 divides the button occlusal surface 154 into two parts, and the shielding cover 140 The positioning post 143 corresponds. The release button 158 includes a button body 1581 and a button cap 1582 that cooperates therewith. The button cap 1582 is a plastic product, and the button body 1581 is made of a metal material, and includes a hollow hollow cylinder 1583 and a rectangular block 1584 disposed at one end of the hollow cylinder 1583. The hollow portion of the hollow cylinder 1583 Corresponding to the positioning post 143 of the shielding cover 140, one side (not labeled) of the rectangular block 1584 is a slope corresponding to the button occluding surface 154. Pressing the release button 158 causes the locking structure 150 to release its engagement with the support base 170. The rear housing 160 includes a connector receiver 161 and a through hole 162 that cooperates therewith. The through hole 162 is disposed corresponding to the release button 158, and the button cap 1582 of the release button 158 protrudes out of the rear case 160 through the through hole 162. The support base 170 includes a disengagement plate 171 and a bracket 172 pivotally connected to the disengagement plate 171. The detaching plate 171 is engaged with the locking structure 150 and received in the joint receiver 161 of the rear casing 160. When the liquid crystal display device 100 is assembled, the shielding cover 140 is firstly integrated with the display panel 130; then, the movable plug 151 of the locking structure 150 is fixed in the receiving groove 141 of the shielding cover 140, The hollow cylinder 1583 of the release button 158 is engaged with the button cap 1582, and one end of the hollow cylinder 1583 of the release button 158 is sleeved on the positioning post 143; next, by the rear case 160 and the front frame 120 When the card is engaged to receive the display panel 130 and the shield cover 140, the button cap 1582 of the release button 158 of the locking structure 150 protrudes from the rear case 160 through the through hole 162 of the rear case 160, and the locking structure is The 150 bis snap connector 153 is also disposed corresponding to the connector receiver 161 of the rear case 160. Finally, the detaching plate 171 of the support base 170 is correspondingly engaged with the two snap connectors 153 of the locking structure 150. The support and the base 170 are correspondingly engaged in the joint receiver 161 of the rear case 160 to complete the assembly of the liquid crystal display device 100. When the support base 170 is disassembled, the release button 158 protruding from the rear case 160 is pressed, and the release button 158 is slid down along the button occlusal surface 154 of the movable pin 151, pushing the movable pin 151 to retreat and compressing the elasticity. The second engaging joint 153 is retracted to release the engaging plate 171, and the separating plate 171 is extracted from the joint receiver 161 to disassemble the supporting base 170. At the same time, the movable bolt 151 is The elastic member returns under the restoring force, and the release button 158 is reset. During the disassembly process, the button occlusal surface 154 of the movable pin 151 is slid by the release button 158 to push the movable pin 151 to slide, so that the two snap connectors 153 are disengaged or engaged with the release plate 171. Thereby, the support base 170 is detached from the liquid crystal display device 100. However, the release button 8 200841072 and the button occluding surface 154 are in face-to-face contact, and the contact area is large, and the incompletely flat fit state is likely to occur, resulting in uneven force, which makes the movable pin 151 slide difficult. The external force required to press the release button 158 is large, making the disassembly difficult. In addition, the difficulty in sliding the movable pin 151 may also cause the release button 158 to be incompletely reset, which may also cause difficulty in the next assembly. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a liquid crystal display device that is easy to assemble and disassemble. A liquid crystal display device includes a display module, a locking structure, a v-back shell and a base, the display module includes a shield, and the rear shell is engaged with the shield, the support base Corresponding to the rear casing arrangement, the locking structure is held between the shielding cover and the rear casing, and the rear casing extends, and comprises a movable bolt and a release button cooperated with the movable bolt, the movable bolt includes a The button occlusal surface has a long rib on one side of the release button, and the release button has a long rib sliding along the occlusal surface of the squeegee to control the locking structure to detachably mount the support base to the rear case. Compared with the prior art, when the liquid crystal display device of the present invention slides the button along the occlusal surface of the button to push the movable plug, the release button and the movable plug are arranged on the side of one of the release buttons by providing the two long ribs. The contact surface of the button occlusal surface is reduced, so that the sliding track of the button is smooth, and the release button is easily pushed; thereby facilitating the detachment of the locking structure from the support base to disassemble the support base. Similarly, when the release button is returned by force, it is also easy to reset, so that the liquid crystal display device is easy to be assembled in the second assembly. 200841072 The slider is pushed by the button to assemble the support base. [Embodiment] Please refer to Fig. 3, which is a schematic structural view of a preferred embodiment of a liquid crystal display device of the present invention. The liquid crystal display device 200 includes a front frame 220, a display panel 230, a shield cover 240, a locking structure 250, a rear case 260 and a support base 270. The shielding cover 240 is integrally formed with the display panel 230. The locking structure 250 is disposed on a surface of the shielding cover 240 away from the display panel 230. The front frame 220 and the rear case 260 are engaged with the display panel 230, the shield cover 240 and the locking structure 250. The support base 270 is detachably disposed on the rear case 260 by the locking structure 250 to assemble the liquid crystal display device 200. A shielding groove 241 and an elastic member (not shown) disposed at the bottom of the receiving groove 241 are disposed on the surface of the shielding cover 240 away from the display panel 230. The receiving groove 241 is for receiving the locking structure 250. Please refer to FIG. 4 together with an enlarged schematic view of the specific structure of the locking structure 250 shown in FIG. The locking structure 250 includes a movable latch 251, a release button 258 that cooperates with the movable latch 251, and two parallel holding members 259. The movable latch 251 is fixed to the shield cover 240 by the two retaining members 259. The inside of the receiving groove 241. The movable latch 251 includes a sliding back plate 252, two engaging joints 253, a button engaging surface 254, two locking grooves 255, two holding grooves 256 and an opening 257. The two latching joints 253 are wedge-shaped and protrude from the surface of the sliding back plate 252 and have a certain distance from the sliding backing plate 252 to form the two locking grooves 255. The button engaging surface 254 is protruded The slope of the sliding back plate 252 is disposed between the two snap joints 253 200841072. The opening 257 bisects the button occlusal surface 254 to the left and right portions, providing a sliding space for the release button 258. The two holding grooves 256 are respectively disposed between the two engaging joints 253 and the button occluding surface 254, and are engaged with the two holding members 259. The release button 258 includes a button cap 2583 and a rectangular block 2584 connected to the end of the button cap 2583. The button cap 2583 has a cylindrical shape and is integrally formed with a rectangular block 2584 which is made of a mixture of polyfurfural and 25% glass fiber. The rectangular block 2584 of the release button 258 is slidable along the squeezing surface 254. 10 Referring to FIG. 5 together, another perspective view of the release button 258 shown in FIG. 4 is shown. The rectangular block 2584 includes a side surface 2585 on which two long ribs 2586 parallel to each other are disposed, and the two long ribs 2586 can be fitted to the button biting surface 254. Pressing the release button 258 causes the locking structure 150 to release its engagement with the support base 270. The rear housing 260 includes a connector receiver 261, a through hole 262 that cooperates with the connector receiver 261, two guiding posts 265, and a baffle 266. The two guiding columns 265 are two cylinders, and the baffle 266 and the two guiding columns 265 are disposed adjacent to the through hole 262 and located on the inner surface of the rear casing 260. The two guide posts 265 can directly assemble the release button 258 to the rear case 260, and the button cap 2583 of the release button 258 protrudes out of the rear case 260 through the through hole 262. The baffle 266 prevents the release button 258 from falling out of the rear case 260. The connector receiver 261 is a rectangular opening region which is recessed in one of the outer surfaces of the rear case 260. The four side walls (not shown) are provided with a plurality of connecting grooves 263 and a pair of engaging grooves 264. The pair of engaging grooves 264 are provided corresponding to the two engaging joints 253. 11 200841072 The support base 270 includes a disengagement plate 271 and a bracket 273 connected to the disengagement plate 271 k . The first joint 2711 and the second joint 2713 extend outwardly around the detaching plate 271. The first joint 2711 can be engaged with the connecting groove 263 of the corresponding rear casing 260. The second joint 2713 and the rear casing 260 One of the pair of engaging grooves 264 is correspondingly disposed, and is further engageable with the two engaging joints 253 of the locking structure 250. Referring to Fig. 6, a schematic view of the assembly of the liquid crystal display device 200 of the present invention is shown. When the liquid crystal display device 200 is assembled, the shielding cover 240 10 is firstly integrated with the display panel 230. Then, the locking structure 250 is fixed in the receiving groove 241 by the two holding members 259, and then the The release button 258 of the locking structure 250 is correspondingly engaged with the two guiding posts 265 of the rear casing 260 such that the button cap 2583 protrudes from the through hole 262 of the rear casing 260 to the rear casing 260, and then the rear casing 260 is The display panel 230, the shield cover 240 and the locking structure 250 are engaged with the front frame 220. The two engaging joints 253 of the locking structure 250 are disposed corresponding to the pair of matching grooves 264 of the rear case 260. Finally, The plurality of first connectors 2711 of the detaching plate 271 of the supporting base 270 are engaged in the connecting slots 263 of the rear casing 260, and the second connectors 2713 are respectively inserted into the corresponding engaging grooves 264, and along the After the wedge surface of the two engaging joints 253 of the matching groove 264 is slid into the two locking grooves 255, the supporting base 270 is correspondingly engaged in the joint receiver 261 of the rear casing 260 to complete the liquid crystal display device. Assembly of 200. When the support base 270 needs to be disassembled, the release button 258 protruding from the rear case 260 is pressed, and the release button 258 is slid down along the button occlusal surface 253 of the movable pin 251, pushing the movable pin 251 to retreat and squeeze. The elastic member, the two 12 200841072 snap joint 253 is loosened to engage with the second second joint 2713, and the two second m joints 2713 are ejected by the two retaining slots 255; meanwhile, the movable latch 251 # The restoring force of the elastic member returns, the release button 258 is reset, and the plurality of first joints 2711 are extracted, thereby disassembling the support base 270 on the liquid crystal display device 200. The locking structure 250 of the liquid crystal display device 200 of the present invention is provided with two long ribs 2586 on one side of the release button 258, so that the contact surface of the release button 258 with the button occlusal surface 253 is reduced, so that the release button 258 10 is easy to reset. Easy to assemble. Moreover, since the material of the release button is a mixture of polyoxymethylene and 25% glass fiber, the material itself is not only cheaper than the alloy, but also has a small friction coefficient, so that the release button can be easily returned without any additional lubrication. It is easier to disassemble. In addition, the release button is integrally formed without the need for assembly, which reduces the difficulty of assembly. Further, the release button 258 is directly assembled to the rear case 260, so that the release button 258 can be prevented from falling off during assembly, further reducing assembly difficulty. In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a prior art liquid crystal display device. 2 is an enlarged schematic view showing a specific structure of the lock structure shown in FIG. 1. 3 is a schematic structural view of a preferred embodiment of a liquid crystal display device of the present invention. FIG. 4 is an enlarged schematic view showing a specific structure of the locking structure shown in FIG. 3. FIG. 5 is a release button shown in FIG. 4 and FIG. 6 is a liquid crystal display device shown in FIG. 3. [Main component symbol description] Liquid crystal display device 200 Display panel 230 accommodating groove 241 _ movable pin 251 Snap joint 253 grooving groove 255 opening 257 Button cap 2583 Side 2585 Holder 259 Joint receiver 261 * Connection groove 263 Guide post 265 Support base 270 First joint 2711 Bracket 273 A perspective view. Set up the assembly diagram. Front frame 220 Shield 240 Locking structure 250 Sliding back plate 252 Button occlusal surface 254 Retaining groove 256 Release button 258 Rectangular block 2584 Long rib 2586 Rear case 260 Through L 262 Cooperating groove 264 Baffle 266 Release plate 271 Second joint 2713 14