TW583444B - Liquid crystal display module and the method to install or disassemble thereof - Google Patents

Abstract

A liquid crystal display module is mainly composed of a carrier, a backlight module, a frame, a liquid crystal and a bezel. The backlight module is disposed on the carrier and one side of the frame has a hole. The liquid crystal panel is disposed on the frame and it is above the backlight module. The liquid crystal panel is fixed to the frame by the bezel. The backlight module and the carrier of the above mentioned are disposed on the frame, so that the backlight module can be installed into or disassembled easily from the hole of the frame.

Description

583444 5. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a liquid crystal display module and a method for assembling and disassembling the same, and more particularly to a liquid crystal display capable of directly replacing a backlight unit. Module and its assembly and disassembly method. [Previous technology] In order to cope with the modern living mode, the volume of video or image devices has gradually become thinner. Although the traditional cathode ray display (C R T) still has its advantages, due to the structure of the internal electronic cavity, the display has a large volume and occupies space, and there are still problems such as radiation damage to the eyes during display. Therefore, the flat display (F 1 at Pan 1 D isp 1 ay) developed in conjunction with the optoelectronic technology and semiconductor manufacturing technology, such as a liquid crystal display (LCD), an organic light emitting display (OLED), or a plasma display (Plasma Display Pane) 1, PDP), has gradually become the mainstream of display products. As mentioned above, the liquid crystal display products have developed vigorously in recent years, and the types of products have also become more diverse. Further, in terms of liquid crystal display, a light source using patterns skippable divided reflective liquid crystal display (R e f 1 e c t i v e LCD), transmissive liquid crystal display (Transmissive LCD) and a semi-penetration transflective liquid crystal display device three. Taking a transmissive or transflective liquid crystal display as an example, it is mainly composed of a liquid crystal panel and a backlight module. Among them, the liquid crystal panel is composed of two transparent substrates and one transparent substrate. The liquid crystal layer is formed between the substrates, and the backlight module is used to provide a surface light source required by the liquid crystal panel, so that the liquid crystal display can achieve a display effect. FIG. 1 is a schematic cross-sectional view of a conventional liquid crystal display module.

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10739twf. Ptd Page 7 583444 V. Description of the invention (3) The light embroidery emitted from the light emitting surface 112c is a type of white surface light source, which is used as the light source required for the LCD panel 1 2 0 display. It is worth noting that, because the conventional liquid crystal display module is assembled in an assembly manner, each component is assembled one by one, such as sequentially placing a reflection sheet, a light guide plate, a light source, a light source fixing base, and an optical module on In the lower frame, the upper frame and the lower frame are assembled, and then the liquid crystal panel is placed on the upper frame. Finally, the upper frame, the lower frame, and the liquid crystal panel are covered by an iron frame, and the locking members such as screws It is locked as one. Therefore, if the light source when the light guide plate or the reflection plate in a backlight module appear damaged or aging phenomena, and then bound to give opposite to the original order in accordance with the respective members - disassemble down element in order to achieve the purpose of updating. As can be seen from the above, such a liquid crystal display module design will make the liquid crystal display assembly time-consuming and inefficient in assembly and disassembly. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a liquid crystal display module and a method for assembling and disassembling the same, which can reduce the time for replacing the backlight module of the liquid crystal display module. Still another object of the present invention is to provide a liquid crystal display module and a method for assembling and disassembling the same. The structure of the liquid crystal display module can facilitate the replacement of the backlight module by a combination of an extraction carrier and an extraction hole. The invention proposes a liquid crystal display module, which is mainly composed of an extraction carrier, a backlight module, a frame, a liquid crystal panel and a frame. The backlight module is arranged on the extraction carrier, and one side of the frame has an extraction hole. The above-described extraction-based carrier and the backlight module with

10739twf. Ptd Page 8 583444 V. Description of the Invention (4) The backlight module placed in the frame and carried by the extraction carrier can be assembled and disassembled from the extraction hole. The liquid crystal panel is arranged on the frame, and the liquid crystal panel is located above the backlight module. The LCD panel can be fixed to the side frame by a bezel. Therefore, the backlight module carried by the bottom frame can be assembled and disassembled more easily and efficiently through the matching of the bottom frame and the side frame. The present invention provides a method for assembling and disassembling a liquid crystal display module. First, a side frame is assembled on a bottom frame, then a backlight module is assembled in a space formed by the bottom frame and the side frame, and then a liquid crystal panel is placed on the side frame. Finally, the LCD panel is fixed on the side frame by a frame. Therefore, when the various components (light source, light guide plate, reflective plate, etc.) in the backlight module are aged or damaged, the bottom frame can be directly removed from the side frame and the backlight module can be removed to achieve the purpose of component update. According to a preferred embodiment of the present invention, the backlight module is composed of a light guide plate and a light source, for example. The light guide plate is disposed on the extraction carrier, and the light guide plate has, for example, a light incidence surface, a light exit surface, and a light diffusion surface, and the light source is also disposed on the extraction carrier and located on the light incidence surface of the light guide plate. Aside. In a preferred embodiment of the present invention, the backlight bottle set further includes, for example, a reflection plate, and the reflection plate is disposed between the light guide diffusion surface and the exchange carrier, for example. In addition, the backlight module of the present invention further includes a plurality of optical films to improve the uniformity of the light source. The above-mentioned optical film is disposed between the backlight module and the liquid crystal panel, and these optical films are, for example, diffusers. (Diffusion plate)

11 10739twf.ptd Page 9 583444 i. Description of the invention (5) (brightness enhanced plate), prism plate o According to the preferred embodiment of the present invention, the light source is, for example, a light emitting diode array light source, The light-emitting diode array light source is composed of, for example, a carrier and a plurality of light-emitting diodes arranged on the carrier. Wherein, the carrier for example is a printed circuit board or a flexible printed circuit film. The light source of the present invention further includes a light source holder, the light source holder may be used to carry the above-described printed circuit board or a flexible printed circuit film. According to a preferred embodiment of the present invention, the above-mentioned light-emitting diode is, for example, a light-emitting diode element with a surface-attached type. According to a preferred embodiment of the present invention, the light source is, for example, a cold cathode fluorescent lamp. In order to improve the light source utilization of the cold cathode fluorescent lamp, the cold cathode fluorescent lamp may be arranged on a lamp source. In the tool, the light source invented by the device is directional. According to a preferred embodiment of the present invention, the frame may be, for example, a single member integrally formed. In addition, the frame may be composed of a lower frame and an upper frame, for example. The lower frame can carry an extraction carrier, a light guide plate, and a light source, and the extraction holes are, for example, located on one side of the lower frame to facilitate replacement and assembly of the backlight module. The upper frame is disposed on the lower frame, and The upper frame can carry a liquid crystal panel. In this embodiment, the inner wall of the frame has, for example, a sliding groove, so that the backlight module can be assembled and disassembled by the combination of the sliding groove and the extraction hole. Because the present invention can be extracted directly from the backlight module of a liquid crystal display aperture

10739twf.ptd Page 10 583444 V. Description of the invention (6) Extracted from the module, so it can reduce the time to replace the backlight module. In addition, the structure of the present invention is simple and convenient for the maintainer in terms of assembly and disassembly. " In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is described below in detail with the accompanying drawings, as follows: [Embodiment] FIG. 2 A perspective view of the indicator module according to a preferred embodiment of the present invention is shown in FIG. 2, and FIG. 2A is an enlarged schematic view of a section 1-1 in FIG. 2. Please refer to FIG. 2 and FIG. 2A. The liquid crystal display module 2000 is mainly composed of an extraction carrier 2 1 0, a backlight module 2 2 0, a frame 2 3 0, a liquid crystal panel 2 4 0 and 1 Framed by 2 50. Among them, the backlight module 220 is disposed below the liquid crystal panel 240, and the backlight module 220 is mainly composed of a light guide plate 222, a light source 224, and a light source fixing base 226. The shape of the light guide plate 2 2 2 is, for example, a wedge-shaped light guide plate, which has a light entrance surface 222a, a light diffusion surface 222b, and a light exit surface 222c. The light guide plate 2 2 2 is disposed on the extraction carrier 2 1 0 described above, and the light source fixing base 2 2 6 is disposed on the extraction carrier 2 1 0, and the light source 2 2 4 is disposed on the extraction carrier 2 1 0, for example. The light source 2 2 4 is located in the light source fixing base 2 2 6, for example. In addition, the backlight module 2 2 0 can further have a reflective plate 2 2 8, and the reflection k 2 2 8 can be arranged on the light diffusion surface 2 2 2 1 of the light guide plate 222 and the interchangeable carrier 2 1 0 One side of the reflecting plate 2 2 8 is connected to the light source fixing base 2 2 6, for example, and is used to reflect the light of the light source 2 2 4 to enhance the intensity of the light source. However, those skilled in the art should know that the reflective plate 2 2 8 is not limited to light.

10739twf.ptd Page 11 583444 V. Description of the invention (7) " The source holder 2 2 6 is connected, and the two can also be separated. "This ur, 30 is, for example, a single component integrally formed or divided into upper and lower frames. In Figure 2A, the frame 23 is mainly composed of the lower frame 232 and the-upper frame 2 3 4. # 中 ， The upper frame 23 "is disposed on the lower frame 2 3 2. The upper frame 234 can be used to carry the liquid crystal panel 24q, and the lower frame 234 can be used to carry the extraction carrier 21o, the backlight module 22o, and the reflective plate 2 28. Among them, one side of the lower frame 2 34 has an extraction (see Fig. 2): and the backlight module 2 "reflection plate 2 2 6 carried by the extraction carrier 2 10 can be extracted through the extraction hole 2 3 5 assemble outside the frame, less ~ 内 # 内》. Conversely, the maintenance person can also remove the extraction carrier 2 1 0 together with the load, and the components such as the group 220 and the reflection plate 226 are removed from the extraction hole 235. Its pivot The material of 2 3 0 is, for example, plastic, rubber, or other materials. In addition, an optical film 260 can be used in the liquid crystal panel 240 and the backlight module 2 20, and the optical film 260 is, for example, a diffusion sheet or a light-enhancing prism. Wait, its function is to increase the brightness and uniformity of the light emitted from the light exit surface 2 2 2 c, so that the history of painting displayed on the LCD panel 24 can be clearer and brighter. Less ~ 框架 The frame in this embodiment The inner wall of the lower frame 2 3 2 has a sliding groove 2 3 6, and the sliding groove 2 3 6 is disposed on both sides of the lower frame 2 3 2, for example, because the carrier 2 1 0 is connected to the lower frame. The slide grooves 2 3 6 of 2 3 2 correspond to each other. The groove 2 can be slid into and fixed in the slide slide 9 of the lower frame 2 3 2 by the extraction carrier 210. Therefore, The backlight module 220 can perform the assembly / disassembly of the backlight module 2 2 0 by the combination of the invitation ^ 36 of the lower frame 232 and the extraction hole 2 35 described above. 'Configuration between the two to

583444 V. Description of the invention (8) The frame 2 5 0 is used to cover the entire module and is locked by a locking member (not shown) to prevent the liquid crystal panel 2 40 from sliding and colliding, and it can be more protected. The entire structure reduces the damage to the internal components of the LCD module caused by external force collision. The material of the frame 2 50 is, for example, an iron frame, an aluminum frame, or a frame made of other materials. Figure 3A shows a schematic diagram of the light source in Figure 2A, Figure 3B shows a schematic diagram of another light source in Figure 2A, and Figure 3C shows a schematic diagram of another light source in Figure 2A. Please refer to FIG. 3A, FIG. 3B, and FIG. 3C. The light source 2 2 4 is, for example, a light emitting diode array light source, and the light emitting diode array light source is mainly composed of a carrier and a plurality of light sources. The light emitting diode is composed of 2 7 4. Among them, the light emitting diode 2 7 4 is disposed on a surface of the carrier far from the light source fixing base 2 2 6, and the carrier here is, for example, a printed circuit board 2 7 2, as shown in FIG. 3A. However, the type of the carrier is not limited to the printed circuit board 2 7 2 described above. Those skilled in the art should know that the carrier can also be a flexible printed circuit film 2 7 6, usually a flexible printed circuit film 2 7 The thickness of 6 is, for example, smaller than the thickness of the printed circuit board 2 72, as shown in FIG. 3B. Among them, the above-mentioned light-emitting diode 274 is, for example, a light-emitting diode element with a surface-adhesive type. In addition, the type of the light source 2 2 4 is not limited to the above-mentioned light emitting diode array light source, and the light source 2 2 4 of the present invention may also be another type of light source. The light miao 2 2 4 is, for example, a cold cathode fluorescent tube 2 7 8 However, in order to improve the light source utilization of the cold cathode fluorescent tube 2 7 8, the cold cathode fluorescent tube 2 7 8 can also be arranged in a light source carrier 2 7 7 to make it invented. The light source is directional, as shown in Figure 3C. Next, the liquid crystal of the present invention will hereinafter be described

10739twf.ptd Page 13 583444 V. Description of the invention (9) Operation steps for assembling and disassembling the display module. FIG. 4 is a schematic flow chart of assembling the liquid crystal display module according to the first embodiment of the invention. Please refer to FIG. 2, FIG. 2 A and FIG. 4 at the same time. Assembling the backlight module 2 2 0 to the frame 2 1 0 includes the following steps: First, 'assemble the backlight module 2 2 0 to the extraction carrier 2 1 0 on 3 0 0, then assemble the extraction vehicle 21 〇 together with the backlight module 22 〇 from the extraction holes 2 3 5 on the side of the frame 23 〇 into the frame 2 3 0 4 0 0, and then The liquid crystal panel 240 is placed on the frame 230 and 500. The liquid crystal panel 240 is fixed to the frame 230 by a bezel 250. FIG. 5 shows a schematic diagram of the disassembly process of the liquid crystal display module according to the first embodiment of the invention. Next, please refer to Figure 2 and Figure 2A and = 5 at the same time. Figure ^ If each component (light source, reflector, light plate, etc.) in the backlight module 22o is damaged, the carrier 2 1 will be extracted first. Together with the backlight module 2 2 0, 7 0 is extracted from the extraction holes 2 3 5 on the side of the frame 2 3 0. Then, the backlight module 2 20 is disassembled from the extraction carrier 2 10 by 800. Then ... Replace the various components (light source, reflector, light guide plate, etc.) in the backlight module 220. Based on the above, the present invention can directly extract the backlight module from the extraction hole of the frame, in addition to improving the efficiency of replacing various components (light $, light guide plate, reflection plate, etc.) in the backlight module, and by using the invention For the assembly and disassembly of the framework, it is convenient and convenient for the maintainer. , U dry entry In summary, the liquid crystal display module of the present invention and the method of disassembling it by a group of dreamers have at least the following advantages:

l0 ^ 39twf. ptd Page 14 583444 V. Description of the Invention (1) 1. The present invention can directly pull the back # module out of the extraction hole from the liquid crystal display module, thereby reducing the time for replacing the backlight module. 2. The structure of the present invention can be matched with each other by an extraction carrier and an extraction hole. For a maintainer, the operation is simple and the disassembly and assembly are easy. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes and retouch without departing from the spirit and scope of the present invention. The scope of protection of the invention shall be determined by the scope of the attached patent application.

10739twf.ptd Page 15 583444 Brief Description of Drawings Figure 1 shows a schematic cross-sectional view of a conventional liquid crystal display module; Figure 2 shows a three-dimensional schematic view of a liquid crystal display module according to a first embodiment of the present invention; Figure 2A shows an enlarged schematic diagram of the I-I section in Figure 2; Figure 3A shows a schematic diagram of the light source in Figure 2A; Figure 3B shows a schematic diagram of another light source in Figure 2A; Figure 3C shows 2A A schematic diagram of another light source in the figure; FIG. 4 illustrates the assembly process of the liquid crystal display module according to the first embodiment of the present invention, and FIG. 5 illustrates the liquid crystal display according to the first embodiment of the present invention. Schematic diagram of the disassembly process of the module. [Illustration of Graphical Symbols] 100 LCD display module 110 Backlight module 112 Light guide plate 1 1 2 a: light incident surface 1 1 2 b: light diffusion surface 1 1 2 c: light exit surface 114 light source 116 light source fixing base 118 reflection Plate 120 Frame 122 Upper Frame 1 24 Lower Frame

10739twf. Ptd Page 16 583444 Brief description of the drawings 130 LCD panel 140 Iron frame 1 50 Optical film 200 LCD display module 2 10 Extraction carrier 220 Backlight module 222 Light guide plate 222a: Light incident surface 2 2 2 b: Light Diffusion surface 2 2 2 c: Light exit surface 224 Light source 226 Light source holder 228 Reflector plate 230 Frame 232 Lower frame 234 Upper frame 235 Extraction hole 236 Chute 240 LCD panel 250 Frame 260 Optical film 272 Printed circuit board 274 Light emitting two Polar body 276 flexible printed circuit film

10739twf. Ptd Page 17 583444 Brief description of the drawings 2 7 7: Light source carrier 278: Cold cathode fluorescent tube 3 0 0: Assemble the backlight module to the extraction carrier 4 0 0: Assemble the extraction carrier to Frame 5 0 0: Place the LCD panel on the frame 6 0 0: Fix the LCD panel on the frame by the frame 7 0 0: Extract the carrier from the frame 8 0 0: Extract the backlight module from the carrier Disassembly from the top 9 0 0: Replace various components in the backlight module

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Claims (1)

Shen Zhuanhe ϋΐ, 1 · The extraction carrier is supported by the back 2. In the back, an extraction backlight frame with a liquid crystal light mold frame such as the Shen light mode light guide plate has one and one light source and the light incident surface 3 · Such as 4. Shenguang template 4. If the light source in the application is a column, the light source includes a plurality of light-guiding liquid crystal display modules, including: a carrier; a module configured on the extraction carrier; There is an extraction hole on one side, wherein the backlight module is arranged in the frame, and the extraction loading backlight module is suitable for assembly and disassembly from the extraction hole; a panel is arranged on the frame, and the The liquid crystal panel is positioned above the group; and the liquid crystal panel is fixed on the frame. The liquid crystal display module according to item 1 of the patent scope, the group of which includes: a board, the light guide plate is disposed on the extraction carrier, and the light guide incident surface, a light exit surface, and a light diffusion surface; It is arranged on the extraction carrier and is located beside the light guide plate. The liquid crystal display module described in the second item of the patent application, the group further includes a reflective plate, wherein the reflective plate is disposed between the diffusion surface and the interchangeable carrier. The liquid crystal display module described in the second item of the patent, a light emitting diode array light source, and the light emitting diode array; and a light emitting diode disposed on the carrier. 10739twf.ptd Page 19 583444 6. Scope of patent application 5. The liquid crystal display module described in item 4 of the scope of patent application, wherein the carrier includes a printed circuit board. 6. The liquid crystal display module according to item 4 of the scope of patent application, wherein the carrier includes a flexible printed circuit film. 7. The liquid crystal display module according to item 6 of the scope of patent application, further comprising a light source fixing base, wherein the light source fixing base is adapted to carry the flexible printed circuit film. 8. The liquid crystal display module described in item 4 of the scope of patent application, wherein each of the light emitting diodes is a light emitting diode element with a surface-adhesive type. 9. The liquid crystal display core set according to item 2 of the scope of patent application, wherein the light source comprises: a light source carrier; and a cold cathode fluorescent lamp tube disposed on the light source carrier. 10. The liquid crystal display module according to item 2 of the scope of patent application, wherein the frame includes: a lower frame adapted to carry the extraction carrier, the light guide plate and the light source, and the extraction hole is located in the lower frame a side edge; and an upper frame disposed on the lower frame and the upper frame adapted to carry the liquid crystal panel. 1 1. The liquid crystal display module according to item 1 of the scope of patent application, wherein the frame has a sliding groove, and the backlight module arranged on the extraction carrier is suitable for being assembled to the frame through the sliding groove. in. 1 2. The liquid crystal display module described in item 1 of the scope of patent application, 10739twf.ptd Page 20 583444 6. Scope of patent application It further includes a plurality of optical films' configured between the backlight module and the LCD panel. 1 3. The liquid crystal display module according to item 12 of the scope of patent application, wherein the optical films include a diffusion sheet, a light enhancement sheet, and a cymbal sheet. 1 4. A method for assembling a liquid crystal display module according to item 1 of the patent application scope, comprising the following steps: assembling the backlight module on the extraction carrier; extracting the backlight module carried by the extraction carrier from the extraction carrier The holes are assembled into the frame; the liquid crystal panel is placed on the frame; and the liquid crystal panel is fixed on the frame by the bezel. 1 5. —A method of disassembling the liquid crystal display module in the first patent application scope is to directly extract the backlight module carried by the extraction carrier from the extraction hole of the frame. 10739twf.ptd Page 21