201027172 、 瓤 四、指定代表圖： (一) 本案指定代表囷為：第九圖。 (二) 本代表圖之元件符號簡單說明： 27 内框 31 框段 35 擔塊 36 架橋 38 架橋外緣 39 外緣 五、 本案若有化學式時，請揭示最能顯示發明特徵的化學式： 六、 發明說明： 1 【發明所屬之技術領域】 本發明係關於一種液晶顯示裝置，特別是關於液晶顯 示裝置的組裝結構。 \ 【先前技術】· ,·--- 液晶顯示裝置的發展技输相較於其他平面顯示器而言 更為迅速與健全。近年來，各廠家推出的機種具有朝向大 尺寸、價格更合理化的趨勢，以符合市場需求。 通常，液晶顯示裝置包含一液晶面板與一背光模組。 液晶面板包含一彩色濾光片基板與一薄膜電晶體基板，兩 201027172 基板之間填充有一液晶層。背光模組則提供液晶面板顯示 所需要的光源。 背光模組依照光源位置可區分為直下式與側光式兩大 類型，後者的光源位置設置於背光模組的側邊且多設置一 導光板以協助光源均勻射出。通常大尺寸的液晶顯示裝置 會採用直下式的背光模組。 第一圖揭示一種習知的液晶顯示裝置10，其主要包含 一背光模組11、一液晶面板19、一外框18。在圖示中， 背光模組11是一種直下式的背光模組，其包含一背板12， 複數個光源13，設置於背板12上。另外’在背板12與光 源13之間，可能設置有一反射板14，可增加利用光源13 的發先效率。 另外’為了提升光源13的效率，在光源13的上方可 ❿能設置有一擴散板15 ;為了亮度、視角、均勻性等光學特 性的最佳彳.匕，在擴散板15上方通常設置有一光學·薄膜組 16 ° . ·. 另外，一框架17(以下簡稱内框17,其材質可為塑膠) 設置於光學薄膜組16上。内框17在機構上的角色相當重 要，一方面，前述的液晶面板19设置於内框17的内緣， 再透過内框17與外框18的結合’使液晶面板19固定於 201027172 内框π與外框18之間；另-方面，内框17愿設在光學 薄膜組16的外緣上，並且透過内樞17與背板η的社合， 使光學薄雜16、擴散板15等元件固定於_ η盘背板 12之間。 〃 通常背板12是金屬’例如銘、鋼、或符合重量輕與鋼 性強條件的合金，且可能是以一體成型的方式製成。而内 框17通常為塑膠材料製成。可，期的是，為了降低液晶 ❹顯示裝置的製造程本，特別是針街大尺寸的液晶顯示裝置 而δ，内框17與背板12的結合，其機構設計上必須符合： 提供足夠強度以承载背光模組11的各元件、低製造成本、 組裝方便等需求。201027172, 瓤 IV. Designated representative map: (1) The designated representative of the case is: ninth. (2) Brief description of the symbol of the representative figure: 27 Inner frame 31 Frame section 35 Load block 36 Bridge 38 Bridge outer edge 39 Outer edge 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: [Technical Field] The present invention relates to a liquid crystal display device, and more particularly to an assembly structure of a liquid crystal display device. \ [Prior Art]···--- The development of liquid crystal display devices is faster and more robust than other flat panel displays. In recent years, the models introduced by various manufacturers have a tendency to be larger in size and more rational in price to meet market demands. Generally, a liquid crystal display device includes a liquid crystal panel and a backlight module. The liquid crystal panel comprises a color filter substrate and a thin film transistor substrate, and a liquid crystal layer is filled between the two substrates of 201027172. The backlight module provides the light source required for the LCD panel display. The backlight module can be divided into two types according to the position of the light source: the direct light type and the side light type. The light source position of the latter is set on the side of the backlight module and a light guide plate is disposed to assist the light source to be uniformly emitted. Generally, a large-sized liquid crystal display device uses a direct-lit backlight module. The first figure discloses a conventional liquid crystal display device 10, which mainly includes a backlight module 11, a liquid crystal panel 19, and an outer frame 18. In the illustration, the backlight module 11 is a direct type backlight module, which includes a back plate 12, and a plurality of light sources 13 disposed on the back plate 12. Further, between the backing plate 12 and the light source 13, a reflecting plate 14 may be provided to increase the efficiency of the use of the light source 13. In addition, in order to improve the efficiency of the light source 13, a diffusing plate 15 may be disposed above the light source 13. For optical characteristics such as brightness, viewing angle, uniformity, etc., an optical device is generally disposed above the diffusing plate 15. The film group 16 ° . . . In addition, a frame 17 (hereinafter referred to as the inner frame 17, which may be made of plastic) is disposed on the optical film set 16 . The role of the inner frame 17 in the mechanism is very important. On the one hand, the liquid crystal panel 19 is disposed on the inner edge of the inner frame 17, and then through the combination of the inner frame 17 and the outer frame 18, the liquid crystal panel 19 is fixed to the inner frame of 201027172. Between the outer frame 18 and the outer frame 18, the inner frame 17 is intended to be disposed on the outer edge of the optical film group 16, and through the cooperation of the inner hub 17 and the back plate η, the components such as the optical thin 16 and the diffusing plate 15 are made. It is fixed between the _ η disk back plates 12. 〃 Usually the backing plate 12 is made of metal, such as ingot, steel, or an alloy that is light and steel-strength, and may be made in one piece. The inner frame 17 is usually made of a plastic material. However, in order to reduce the manufacturing process of the liquid crystal display device, in particular, the large-size liquid crystal display device of the pin street, δ, the combination of the inner frame 17 and the back plate 12, the mechanism design must conform to: provide sufficient strength In order to carry the components of the backlight module 11, low manufacturing cost, convenient assembly and the like.
I 因此，亟需提供一種新的液晶顯示裝置，其炙要特徵 在於内框17與背板12的機構設計可符合上述要求，以達 ❹到在產能大量開出情形下，達成使液晶顯示裝置價格合理 化的目標^ · • · · 【發明内容】 本發明的目的在於提供一種新的液晶顯示裝置’其主要 特徵在於内框與背板的機構設計符合強度夠、成本低、組 裝快的需求。 201027172 根據上述目的，本發明提供一種液晶顯示裝置，包含一 外框、一液晶面板、一背光模組，其中背光模組包含一背 板、複數個光源、一擴散板、一光學薄膜組、一内框，液 晶面板被固定於内框與外框之間，且内框包含一開口，開 口設置有一擋塊，背板於擋塊的對應位置設置有一架橋， 擋塊結合架橋使背光模組的各元件被固定於背板與内框之 間0 ® 根據上述目的，本發明提供另一種液晶顯示裝置，其 結構與上述液晶顯示裝置的結構相同，不同處僅在於架橋 與擋塊的位置互換。 根據上述目的，本發明提供另一種液晶顯示裝置，其 結構與上述液晶顯示裝置的不同處在於，内框包含複數個 框段，其中至少一框段的下方包含一倒勾，背板於倒勾的 ^ 對應位置設置有一凹槽，倒勾結合凹槽使背光模組的各元 件被固定於背板與内框之間。 【實施方式】 第二圖至第五圖揭示本發明實施例的液晶顯示裝置，其 中第一圖為液晶顯示裝置的爆炸示意圖，其他圖示則繪示 液晶顯示裝置的其他元件或重要特徵。 5 201027172 如第二圖所示，本發明實施例的液晶顯示裝置20包含 一背光模組21、一液晶面板29、一外框28。在實施例中， 液晶顯示裝置是一種大尺寸例如47吋以上的顯示裝置、背 光模組21是一種直下式的背光模組，但不限定於此。背光 模組21包含一背板22，複數個光源23，例如冷陰極燈管 或發光二極體，設置於背板22上。另外，在背板22與光 源23之間，可設置有一反射板24以增加光源23的發光效 ⑩ 率。 另外，為了提升光源23的效率，在光源23的上方可 設置有一擴散板25 ;為了亮度、視角、均勻性等光學特性 的最佳化，在擴散板25上方可設置有一光學薄膜組26， j 光學薄膜組26可能包含擴散膜、稜鏡膜、增亮膜(BEF)、 反射式增亮膜(DBEF)等等的組合。 另外，一框架27(以下簡稱内框27，其材質可為塑膠) 設置於光學薄膜組26上。内框27與外框28結合，使液 晶面板29固定於内框27與外框28 ·之間；另一方面，内 框27與背板22結合，使光學薄膜組26、擴散板25等元 件固定於内框27與背板22之間。同時參考第三圖，為了 節省龐大射出成型的模具成本並提高模具的再利用率，内 框27是由複數個獨立的框段30、31構成，每個框段30、 31分別由一模具射出，其製造成本遠小於單一大型模具的 6 201027172 成本。值得注意的是，在實施例中，每個框段30、31具有 一連結結構(將於其他圖式說明）使與背板22固定，且框段 30、31彼此之間並無連結結構使彼此互相連結。此外，作 為例示而非限制，本實施例的内框27係一矩形，具有兩長 邊與兩短邊，每一長邊包含有兩個框段30而每一短邊僅包 含一個框段31。 然而，上述拆件式的内框27設計雖可節省許多製造成 ® 本，但組裝變異性會較一體成型的内框17高，可能因此達 不到品管的要求。例如，第四圖顯示第三圖的局部放大圖， 考量矩形内框27須承載液晶面板29的重量，因此内框27 每一長邊的框段30與背板22以較穩固的結構，例如以螺 絲（未圖示）的方式固定，而每一短邊的框段31與背板22 的固定則考量組裝空間不足、組裝方便、節省螺絲成本等 因素，設計框段31具有一缺口 41，背板22在缺口 41的 對應位置具有—勾32，兩者互相扣合固定。如圖所示， 卡勾32方式的固定僅有z方向的拘束.，但在X.與y方向的 自由度則無有效拘束，此種設計對於一體成型式的内框17 無妨，但對於拆件式鈞内框27則產生困擾。如第五圖所 示，前述矩形内框27與背板22在短邊的框段31以卡勾 32方式固定，由於X方向未受到拘束，當短邊框段31有 射出成型時殘留之應力時，會使得短邊的框段31外翻一弧 201027172 度’除影響液晶顯示裝置20的畫質，且於品管檢查時，内 框27的開口尺寸或背光模組21的尺寸無法達到要求。 為了解決短邊框段31與背板22的連結不穩固缺失，一 可行的辦法是以螺絲鎖固，但此方式具有組裝耗時、成本 較尚、組裝空間不足的問題。 第六圖揭示一可行的實施例，為方便說明與凸顯重要特 • 徵’圖中僅繪示内框27與背板22等部分，液晶顯示裝置 的其餘元件可與第二圖所示相同。内框27在短邊框段31 的下方具有一倒勾33，背板22在倒勾33的對應位置具有 一凹槽34 ’倒勾33與凹槽34扣合而完成框段31與背板 22的結合。此固定結構具有足夠的穩固性可拘束框段31 在X方向的位移且組裝方便，同時此固定結構也不限定使 用在拆件式的内框27，也能使用在傳統的一體成型式内框 ❹ 17(如圖一所示）’但缺點是拆解較為困難，.如液晶面板19 或背光模組21的元件需要維修，會需要花費較多的時間； 另外’内框17的模具設計也較為複雜，使得模具成本的下 降比例還無法令人滿意。 第七圖至第十圖揭示本發明較佳實施例的液晶顯示裝 置。為方便說明與凸顯重要特徵，圖中僅繪示内框27與背 板22等部分，液晶顯示裝置的其餘元件可與第二圖所示相 同。 8 201027172 第七圖顯示本發明液晶顯示裝置的内框的局部放大 圖，内框可以是如第二、三圖所示的拆件式内框27，也可 以是如第一圖所示的内框17，而圖中例示係應用於拆件式 内框27，如前述實施例，内框27包含複數個框段30、31 構成，其中至少有一框段31包含至少一開口 40，開口的 適當位置設置一擋塊35。 第八圖顯示本發明晶顯示裝置的背板22的局部放大 ❹ 圖，背板22在前述檔塊35的對應位置上具有一架橋36。 第九圖顯示框段31與背板22的組裝完成圖。當框段31 的檔塊35插入背板22的架橋36，即完成組裝。透過擋塊 35與架橋36的結合，可使框段31不會產生X方向的位移。 考慮到組裝方便與增加穩固，除了擋塊35與架橋36的結 構之外，在框段31與背板22的其他位置也可以設置前述 φ 的卡勾32與缺口 41結構，如此可使卡勾32無法拘束的X 自由度補強。值得注意的是，檔塊35設置於框段31的開 口 40較為靠近内緣的位置，且使得檔塊35與架橋36結合 後，架橋36的一架橋外緣38與框段31的外緣39(如擋塊 35應用在一體成型内框17則為内框的外緣39)位於同一個 平面，如此設計可使空間獲得更有效利用。 另外，在本發明另一個實施例中，其結構與第七圖至第 九圖實施例的結構大致相同，不同處僅在於架橋36與擋塊 201027172 3〇5的位置互換。内框27包含至少一架橋36’而背板22於 架橋36的對應位置設置有一開口 4〇且開口設置有一擒塊 35撞塊35結合架橋36使複數個光源23、擴散板15、光 學薄膜組26被固定於背板22與内框27之間。 由上所述的實施例，透過單獨使用擋塊35與架橋36, 或者倒勾33與凹槽34的結構，或進一步搭配卡勾32與缺 口 41的結構，使得内框在χ方向的位移獲得有效的約束， 克服了I知技術的缺失。此外，上述結構皆具有良好的組 裝方便丨生。再者，上述各結構如果應用於拆件式的内框27， 可進一步節省龐大的模具成本並提高再利用率。根據以上 揭露内谷，本發明提，的的液晶顯示裝置，其内框與背板 的設計，已符合提供足夠穩固性、低製造成本、組裝方便 等的發明目的。 ❿ 以上所述僅為本發明之較佳實施例而已，並非用以限定 本發明之申請專利範圍；凡其他未脫離發明所揭示之精神 下所完成之等效改變或修飾，均應包含在下述之申請專利 範圍内。 ' : 【圖式簡單說明】 第一圖顯示一習知的液晶顯示裝置； 第二圖至第六圖顯示本發明實施例的液晶顯示裝置；及 201027172 第七圖至第九圖顯示本發明較佳實施例的液晶顯示裝置。 【主要元件符號說明】Therefore, there is a need to provide a new liquid crystal display device, which is characterized in that the mechanism design of the inner frame 17 and the back plate 12 can meet the above requirements, so as to achieve the liquid crystal display device in the case of a large amount of production capacity. The objective of the price rationalization is to provide a new liquid crystal display device whose main feature is that the mechanism design of the inner frame and the back plate meets the requirements of sufficient strength, low cost, and fast assembly. According to the above objective, the present invention provides a liquid crystal display device including a frame, a liquid crystal panel, and a backlight module. The backlight module includes a back plate, a plurality of light sources, a diffusion plate, an optical film group, and a backlight unit. The inner frame and the liquid crystal panel are fixed between the inner frame and the outer frame, and the inner frame includes an opening, and the opening is provided with a stopper. The back plate is provided with a bridge at a corresponding position of the block, and the block is combined with the bridge to make the backlight module The components are fixed between the backplane and the inner frame. 0 ® According to the above object, the present invention provides another liquid crystal display device having the same structure as that of the liquid crystal display device described above, except that the positions of the bridge and the stopper are interchanged. According to the above object, the present invention provides another liquid crystal display device having a structure different from the above liquid crystal display device in that the inner frame includes a plurality of frame segments, wherein at least one of the frame segments includes a barb and the back plate is barbed. The corresponding position of the ^ is provided with a groove, and the barbs are combined with the groove to fix the components of the backlight module between the back plate and the inner frame. [Embodiment] The second to fifth figures disclose a liquid crystal display device according to an embodiment of the present invention, wherein the first figure is an exploded view of the liquid crystal display device, and the other figures show other elements or important features of the liquid crystal display device. As shown in the second figure, the liquid crystal display device 20 of the embodiment of the present invention comprises a backlight module 21, a liquid crystal panel 29, and an outer frame 28. In the embodiment, the liquid crystal display device is a display device having a large size, for example, 47 inches or more, and the backlight module 21 is a direct type backlight module, but is not limited thereto. The backlight module 21 includes a back plate 22, and a plurality of light sources 23, such as cold cathode lamps or light emitting diodes, are disposed on the back plate 22. In addition, a reflection plate 24 may be disposed between the back plate 22 and the light source 23 to increase the luminous efficiency of the light source 23. In addition, in order to improve the efficiency of the light source 23, a diffusing plate 25 may be disposed above the light source 23. For the optimization of optical characteristics such as brightness, viewing angle, uniformity, etc., an optical film group 26 may be disposed above the diffusing plate 25. The optical film set 26 may comprise a combination of a diffusing film, a ruthenium film, a brightness enhancing film (BEF), a reflective brightness enhancing film (DBEF), and the like. In addition, a frame 27 (hereinafter referred to as the inner frame 27, which may be made of plastic) is disposed on the optical film set 26. The inner frame 27 is combined with the outer frame 28 to fix the liquid crystal panel 29 between the inner frame 27 and the outer frame 28; on the other hand, the inner frame 27 is combined with the back plate 22 to make components such as the optical film group 26 and the diffusion plate 25 It is fixed between the inner frame 27 and the back plate 22. Referring to the third figure at the same time, in order to save the cost of the large injection molding die and improve the reuse rate of the mold, the inner frame 27 is composed of a plurality of independent frame segments 30, 31, and each of the frame segments 30, 31 is respectively ejected by a die. The manufacturing cost is much lower than the cost of a single large mold 6 201027172. It should be noted that, in the embodiment, each of the frame segments 30, 31 has a joint structure (which will be described in other drawings) to be fixed to the back plate 22, and the frame segments 30, 31 have no joint structure with each other. Connect to each other. Moreover, as an illustration and not limitation, the inner frame 27 of the present embodiment is a rectangle having two long sides and two short sides, each long side including two frame segments 30 and each short side containing only one frame segment 31. . However, the above-described split-type inner frame 27 design can save a lot of manufacturing, but the assembly variability is higher than the integrally formed inner frame 17, which may not meet the requirements of the quality control. For example, the fourth figure shows a partial enlarged view of the third figure, considering that the rectangular inner frame 27 has to carry the weight of the liquid crystal panel 29, so that the frame 30 of each long side of the inner frame 27 and the back plate 22 have a relatively stable structure, for example The fixing of the frame section 31 and the backing plate 22 of each short side takes into consideration the factors such as insufficient assembly space, convenient assembly, and saving screw cost, and the design frame section 31 has a notch 41, and is fixed by screws (not shown). The back plate 22 has a hook 32 at a corresponding position of the notch 41, and the two are fastened to each other. As shown in the figure, the fixing of the hook 32 method is only restricted in the z direction. However, the degree of freedom in the X. and y directions is not effectively restrained. This design is suitable for the one-piece inner frame 17, but for the demolition The internal frame 27 of the piece is troublesome. As shown in the fifth figure, the rectangular inner frame 27 and the back plate 22 are fixed by the hook 32 in the frame segment 31 on the short side. Since the X direction is not restrained, when the short frame segment 31 has residual stress during injection molding. The short-side frame segment 31 is turned over by an arc of 201027172 degrees. In addition to affecting the image quality of the liquid crystal display device 20, the opening size of the inner frame 27 or the size of the backlight module 21 cannot meet the requirements during quality inspection. In order to solve the problem that the connection between the short frame segment 31 and the back plate 22 is not stable, a feasible method is to use a screw to lock, but this method has the problems of time consuming assembly, cost, and insufficient assembly space. The sixth figure discloses a possible embodiment. For convenience of explanation and highlighting the important features, only the inner frame 27 and the back plate 22 are shown, and the remaining components of the liquid crystal display device can be the same as those shown in the second figure. The inner frame 27 has a barb 33 under the short frame segment 31, and the back plate 22 has a groove 34 at a corresponding position of the barb 33. The barb 33 is engaged with the groove 34 to complete the frame segment 31 and the back plate 22. Combination of. The fixing structure has sufficient stability to restrain the displacement of the frame segment 31 in the X direction and is convenient to assemble, and the fixing structure is not limited to the inner frame 27 of the disassembling type, and can also be used in the conventional one-piece inner frame. ❹ 17 (shown in Figure 1) 'But the disadvantage is that it is more difficult to disassemble. If the components of the LCD panel 19 or the backlight module 21 need to be repaired, it will take more time. In addition, the mold design of the inner frame 17 is also More complicated, the proportion of mold cost reduction is still unsatisfactory. 7 to 11 are views showing a liquid crystal display device of a preferred embodiment of the present invention. For convenience of explanation and highlighting important features, only the inner frame 27 and the back plate 22 are shown in the figure, and the remaining components of the liquid crystal display device can be the same as those shown in the second figure. 8 201027172 The seventh figure shows a partial enlarged view of the inner frame of the liquid crystal display device of the present invention, and the inner frame may be the split inner frame 27 as shown in the second and third figures, or may be inside as shown in the first figure. Box 17, and the illustration is applied to the split-type inner frame 27. As in the previous embodiment, the inner frame 27 comprises a plurality of frame segments 30, 31, wherein at least one of the frame segments 31 comprises at least one opening 40, suitable for the opening A stop 35 is provided at the position. The eighth drawing shows a partial enlarged view of the backing plate 22 of the crystal display device of the present invention, the backing plate 22 having a bridge 36 at a corresponding position of the aforementioned stop 35. The ninth diagram shows an assembled view of the frame section 31 and the backing plate 22. When the block 35 of the frame segment 31 is inserted into the bridge 36 of the backing plate 22, the assembly is completed. Through the combination of the stopper 35 and the bridge 36, the frame section 31 can be prevented from being displaced in the X direction. In view of the convenience of assembly and the increase of stability, in addition to the structure of the stopper 35 and the bridge 36, the hooks 32 and the notches 41 of the aforementioned φ may be disposed at other positions of the frame 31 and the back plate 22, so that the hook can be made. 32 Unconstrained X degrees of freedom to reinforce. It should be noted that the block 35 is disposed at a position closer to the inner edge of the opening 40 of the frame segment 31, and after the block 35 is combined with the bridge 36, a bridge outer edge 38 of the bridge 36 and the outer edge 39 of the frame segment 31 are provided. (If the stopper 35 is applied to the integrally formed inner frame 17 and the outer edge 39 of the inner frame) is located on the same plane, the design is such that the space can be more effectively utilized. Further, in another embodiment of the present invention, the structure is substantially the same as that of the seventh to ninth embodiments, except that the positions of the bridge 36 and the stoppers 201027172 3〇5 are interchanged. The inner frame 27 includes at least one bridge 36' and the back plate 22 is provided with an opening 4 at a corresponding position of the bridge 36. The opening is provided with a block 35. The bump block 35 is combined with the bridge 36 to make a plurality of light sources 23, a diffusing plate 15, and an optical film group. 26 is fixed between the back plate 22 and the inner frame 27. According to the embodiment described above, the displacement of the inner frame in the x-direction is obtained by separately using the structure of the stopper 35 and the bridge 36, or the structure of the barb 33 and the groove 34, or further matching the structure of the hook 32 and the notch 41. Effective constraints overcome the lack of I know technology. In addition, the above structures are all well assembled and facilitated. Furthermore, if the above-described respective structures are applied to the split type inner frame 27, it is possible to further save a large mold cost and improve the reuse rate. According to the above disclosure, the liquid crystal display device of the present invention has an inner frame and a back plate designed to meet the object of providing sufficient stability, low manufacturing cost, and ease of assembly. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; any equivalent changes or modifications which are not departing from the spirit of the invention should be included in the following. Within the scope of the patent application. ': [Simple description of the drawings] The first figure shows a conventional liquid crystal display device; the second to sixth figures show the liquid crystal display device of the embodiment of the present invention; and the 201027172 shows the seventh aspect to the ninth figure of the present invention. A liquid crystal display device of a preferred embodiment. [Main component symbol description]
10 液晶顯不裝置 11 背光模組 12 背板 13 光源 14 反射板 15 擴散板 16 光學薄膜組 17 内框 18 外框 19 液晶面板 20 液晶顯示裝置 21 背光模組 22 背板_ 23 光源 24 反射板 25 擴散板 26 光學薄膜組 27 内框 11 201027172 外框 液晶面板 框段 框段 卡勾 倒勾 凹槽 ❹ 擋塊 架橋 架橋外緣 外緣 開口1 缺口 1210 LCD display device 11 Backlight module 12 Back plate 13 Light source 14 Reflector plate 15 Diffuser plate 16 Optical film group 17 Inner frame 18 Frame 19 Liquid crystal panel 20 Liquid crystal display device 21 Backlight module 22 Back plate _ 23 Light source 24 Reflector 25 diffuser 26 optical film set 27 inner frame 11 201027172 outer frame liquid crystal panel frame section frame hook hook groove ❹ block bridge bridge outer edge outer edge opening 1 notch 12