TWI283316B - Dual display structure - Google Patents

Abstract

The present invention discloses a dual display structure. The dual display structure includes a first panel, a main frame having a first opening exposing portions of the first panel used for accommodating and fixing the first panel, a sub frame fixed to the main frame opposite to the side for fixing the first panel and having a second opening corresponding to the first opening, and a second panel installed on the sub frame opposite to the main frame and covering the second open.

Description

1283316 V. INSTRUCTION DESCRIPTION α) [Technical Field] The present invention provides a double-sided display structure, and more particularly to a replaceable double-sided display liquid crystal display structure. [Prior Art] The liquid crystal display is a thin and small flat display device, and the advantages of the liquid crystal display are remarkable as compared with the CRT display. Since the liquid crystal display employs a technique of controlling the transmittance by utilizing the rotation state of the liquid crystal molecules, thereby realizing the display of the color, the brightness and darkness are adjusted by controlling the light transmittance. When the color is constant, the liquid crystal molecules remain unchanged, so the liquid crystal display has the advantages of stable kneading and no flickering. At the same time, the liquid crystal display also allows the entire substrate to emit light by the technical principle of controlling the transmittance of the liquid crystal molecules, so that a true complete plane can be achieved. In addition, the liquid crystal display has the advantage of being completely free of radiation, so that even if the user watches the liquid crystal display screen for a long time, it does not cause much damage to the eyes. Coupled with the advantages of small size and low energy consumption, LCD monitors are currently the star products. Due to the above advantages, liquid crystal displays are widely used in a wide range of electrical products, ranging from portable products such as mobile phones, personal digital assistants, notebook computers and digital cameras, to aerospace and medical The field of diagnostic instruments is used, and this

Page 6 1283316 V. INSTRUCTIONS (2) Some portable products are unlikely to be used when only CRT monitors were used in the past. As the products continue to evolve, the related technologies of liquid crystal displays continue to advance. The latest trend is to install double-sided display liquid crystal displays on various products. However, no matter what kind of display component is mounted on any kind of product, it needs to be light, easy to assemble, and structurally stable and durable. However, the conventional method of mounting a double-sided liquid crystal display on various products directly combines two sets of liquid crystal display modules back to back. This type of installation will result in an increase in the weight and thickness of the product, which is completely inconsistent with the trend of lightness, thinness and shortness. Therefore, as the technology evolves, another conventional technique is that the liquid crystal display of the double-sided display can share a part of the optical component, but when assembling the main panel and the accessory panel, the accessory panel is fixed to one for main accommodation. The main framework of the panel. That is to say, since two complete sets of liquid crystal display modules are no longer needed, the weight of the product can be lighter and the thickness can be thinned, but new problems are derived. Because the accessory panel is fixed to the main frame, the fixing method includes directly fixing the accessory panel on the main frame to fix the accessory panel, or using an additional iron frame to frame and fix the accessory panel to the main Frame, the former must make the mechanism on the main frame, the latter must clamp the iron frame on the main frame, so no matter which method is used, it is necessary to locate the position of the auxiliary panel on the main frame before the actual assembly, and according to This positioning position and the size and weight of the accessory panel are used to design the main frame first.

Page 7 1283316 V. INSTRUCTIONS (3) When assembling the double-sided display liquid crystal display by the method proposed by the above-mentioned prior art, when the size and position of the auxiliary panel are changed, it is necessary to re-do the main frame. The time it takes to design, re-open and validate, is considerable. Under the current trend of accelerating the speed of product innovation, mobile phones, for example, each mobile phone has a different appearance to stimulate consumers' desire to purchase, and when new mobile phones continue to appear, each time they have to redesign the main The framework, re-opening, verification, mass production, will certainly delay the time to market new products. Therefore, how to provide a replaceable double-sided display liquid crystal display structure, which not only changes the position and size of the auxiliary panel, but also does not need to change the design of the main frame, and is easy to assemble, thereby ensuring the strength of the structure, and at the same time It is an important issue to reduce costs by sharing the same main frame design with different models of products. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a liquid crystal display structure for double-sided display to solve the above problems. In a preferred embodiment of the present invention, a double-sided display structure is provided. The double-sided display structure includes a first panel, a main frame for receiving and fixing the first panel, and the main frame includes an exposed a first opening of the first panel, an accessory frame, fixed to the main

Page 8 1283316 V. Description of the invention (4) The frame is fixed to the other side of the first panel, and the accessory frame includes a second opening corresponding to the first opening, and a second panel is disposed on The accessory frame is away from one side of the main frame and covers the second opening D. Since the double-sided display liquid crystal display structure of the present invention separates the main frame and the auxiliary frame into two components, the main frame houses the main panel, and the auxiliary panel is fixed on the auxiliary frame, and then the main frame and the auxiliary frame are attached. The frames are assembled together. Therefore, each time a different type or type of double-sided display liquid crystal display structure is produced, it is not necessary to change the design of the main frame at the same time because the size and position of the auxiliary panel are different, and the time for re-opening and verification can be saved. , thereby speeding up the speed of product launches and reducing production costs. In addition, the double-sided display liquid crystal display structure of the present invention can be double-sidedly illuminated by using one light guide plate by special design of the retaining wall on the accessory frame, and the thickness of the auxiliary panel and the thickness of the accessory frame. Overlapping; or using two light guide plates, and overlapping the thickness of the light guide plate and the accessory panel with the thickness of the accessory frame, so that the total thickness of the module is not increased at all due to the presence of the accessory frame. [Embodiment] Please refer to FIG. 1 to FIG. 2, which are schematic diagrams of a portion of a double-sided display liquid crystal display structure 100 of the present invention. As shown in Figure 1, the present invention

Page 9 1283316 V. Invention Description (5) The double-sided display liquid crystal display structure 100 includes a main panel 1 0 2, the main panel 1 0 2 is a liquid crystal display panel, and the main panel 102 includes one The first surface 104 and a second surface 106 (please refer to FIG. 2). In Fig. 1, only the first surface 104 is displayed because of the display direction, and the first surface 104 is the display surface of the main panel 102. The double-sided display liquid crystal display structure 100 of the present invention further includes a main frame 108, and the main frame 108 is for accommodating and fixing the main panel 102. Fig. 2 is an illustration of the main panel 102 and the main frame 108 in Fig. 1 after being turned over so as to be more clearly explained. As shown in FIG. 2, the main frame 108 includes a first opening 112 having a second portion 106 of the exposed portion. Please refer to FIG. 3, which is a partial schematic view of the double-sided display liquid crystal display structure 100 of the present invention. As shown in FIG. 3, the double-sided display liquid crystal display structure 100 of the present invention comprises an accessory frame 1 1 4, and the accessory frame 1 1 4 includes a plurality of barrier walls 1 16 disposed on the sub frame 1 1 4 . The double-sided display liquid crystal display structure 100 of the present invention further comprises an accessory panel 1 1 8 disposed on the sub frame 1 1 4 , and the sub-panel 1 18 is a liquid crystal display panel. The accessory panel 118 includes a third surface 122 and a fourth surface (not shown). In Fig. 3, only the third surface 122 is shown because of the display direction, and the third surface 122 is the display surface of the sub-panel 118. In addition to β, the accessory frame 1 14 further includes a second opening (not shown). _ Please refer to Figure 4, Figure 4 is the double-sided display LCD display structure of the present invention

Page 10 1283316 V. Description of the invention (6) 1 〇 0 Schematic diagram after assembly. As shown in FIG. 4, in the double-sided display liquid crystal display structure 100 of the present invention, the main panel 102 is disposed within the main frame 1 〇8, and the sub-panel 1 18 is disposed and fixed to the sub-frame 1 1 Above 4, the accessory frame 114 is then secured to the main frame 108 to complete the assembly. In addition, the accessory frame 1 14 further includes a second opening (not shown). When assembling, the second opening (not shown) must be corresponding to the first opening 1 1 2 on the main frame 110 ( Please refer to Figure 2). In Fig. 4, the area of the sub frame Π 4 is equal to the area of the main frame 丨〇 8, so that the sub frame 1 1 4 can be fixed to the entire edge of the main frame 108, which is an ideal design because In this case, the strength of the entire structure can be ensured and assembly is easy. In fact, the design of the sub-frame 1 14 is not limited thereto, as long as the attachment panel 1 1 8 can be successfully fixed, and it is easy to assemble to the main frame 108 and to ensure a certain overall structural strength, which is within the scope of the present invention. within. Various different embodiments may be employed in the present invention to secure the accessory frame 114 to the primary frame 1〇8. For example, a plurality of fixing mechanisms may be provided on the main frame 1-8, and the fixing frames may be used to fix the sub-frame 114 to the main frame 108, or even by means of bonding. Referring to FIG. 5, FIG. 5 is a schematic diagram of the accessory frame 114 in the double-sided display liquid crystal display structure of the present invention. As shown in FIG. 5, the auxiliary frame 114 includes a plurality of the partition walls 1 16 and the second opening 1 2 4 as described above, and a plurality of flanges 1 2 6 disposed at the edges thereof. Inserting the flanges 1 2 6 forward into the corresponding grooves 12 8 disposed on the main frame 1 〇 8 (please include

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V. Description of invention (7) With:) 2:;; i strong; indeed, the double-sided display liquid shown in the figure is * 旖 * * * * * * * * * *. In fact, the above is only for each, but also: there are various changes, Ρ ί J f use the premise of the fixed mechanism f frame "4 fixed to the main frame 1 〇 not 8 limit:: 2, ^ ^ = mechanism It is not necessarily designed as a solid on the frame 1 0 8 , and the structure can be correspondingly set to 10: 1 is not 2V, and the accessory frame 114 is the flange 126 of the fitting mechanism. However, as described above, please refer to FIG. 2 and FIG. 3 to bring the auxiliary surface g118n% with a belt (not shown). In the present invention, a plurality of partition walls 116 are used to fix the glue to the subsidiary. Frame, and move together. It is worth noting that the accessory panel 丨18: f11 8//square stops its sliding 1 2 4, the second opening 丨2 4 corresponds to the main ', and covers the second opening "2 'and the first Open the hole!! 2 is exposed to the first opening of the upper frame 1 〇 8 and refer to Figure 2 and Figure 4), so that the second surface of the first surface is 1 〇 6 (please use a mechanism (not shown) to operate the light in the main surface Free access through the optics. In addition, when attaching and attaching the panel 118, various different real J; 8 can be used to fix to the sub frame 1 1 4 frame 1 1 4 or the second opening 24 For example, in the accessory structure, the fixing mechanism can be used to set the attachment edge to a plurality of fixing machines 114. In short, as long as it can be ensured that the body panel 18 is fixed to the accessory frame, it is in the present invention. Within the range. i body strength, and easy to group

1283316 V. INSTRUCTIONS (8) The structure disclosed by the Society in this section is a double-sided display liquid crystal display ... structure 100, therefore, when the assembly is completed, the main panel i and the subsidiary = board 118 are bound to be set. Various optical components are wired to the main panel 102 and the display panel of the sub-panel 118. Since the various optical elements are not the focus of the present invention, only the portion m related to the present invention is used herein. In fact, the double-sided display liquid crystal display structure of the present invention can be achieved by using two light guide plates or one light guide plate to cause double-sided illumination. Please refer to FIG. 6. FIG. 6 is an exploded view of a double-sided display liquid crystal display structure 200 having a light guide plate according to the present invention. As shown in FIG. 6, the double-sided display liquid crystal display structure 2 of the present invention includes a main panel 2 from the top to the bottom, an optical mechanism 2〇4 composed of an optical film, and a light guide plate 06. a main frame 208, another optical mechanism 2 1 formed by an optical film, a reflector 2 1 4, an accessory frame 2 16 and an accessory panel 218 fixed to the accessory frame 216, a first surface 222 and A second surface 2 2 4 is a display surface of the main panel 2 〇 2 and the sub-panel 2 18 , respectively. When the light is emitted from the light-emitting diode light source 2 26 , the light guide plate 206 is first entered, and then distributed to the main panel 202 by the action of the optical mechanism 204, and the light guide plate 206 can be double-sidedly illuminated (or even Other light sources), light is also supplied to the accessory panel 2 1 8 to cause double-sided display. In fact, the 'reflector 214 is not necessarily a double-sided total reflection device, which can be half-transparent or semi-reflective according to the number and position of the light source and the brightness of the main panel 2 〇 2 and the auxiliary panel 2 18 A single-sided total reflection device.

Page 13 1283316 V. Description of invention (9)

Please refer to FIG. 7 , which is a schematic diagram of the assembly of the double-sided display liquid crystal display structure of FIG. 6 . As shown in FIG. 7, a top polarizing film 228 is disposed on the second surface 224 of the sub-panel 2 18, and a bottom polarizing film 234 is disposed on a third surface 232 opposite to the second surface 224. The barrier wall 236 on the accessory frame 216 in fact includes a high wall 238 and a low wall 242. The thickness of the bottom polarizing film 234 is 0.4 mm, the thickness of the top polarizing film 228 is 0·27 mm, the total thickness of the upper panel 218 and the lower panel is 1 mm, and the thickness of the sub frame 21 6 is 〇·8 mm. Therefore, by designing the heights of the high wall 2 3 8 and the low wall 2 4 2 first, the third surface 2 3 2 is placed on the low wall 242, and the bottom polarizing film 2 34 can be suspended. Then, on the side of the auxiliary frame 216 and the third surface 232, the reflecting plate 2 1 4 and the optical mechanism 2 1 2 (only the portion is shown in FIG. 7) are sequentially disposed. In this way, not only the proper attachment of the auxiliary panel 2 18 to the various optical films, but also the thickness of the auxiliary frame 2 16 is also the thickness of the attached panel 2 18 . The presence of 216 increases the thickness of the entire double-sided display liquid crystal display structure 200. Referring to FIG. 8, FIG. 8 is an exploded view of a double-sided display liquid crystal display structure 300 having two light guide plates according to the present invention. As shown in FIG. 8, the double-sided display liquid crystal display structure 3 of the present invention comprises a main panel 3 0 2, an optical mechanism composed of an optical film 3 〇 4, _ 3 0 6 , A main frame 308, a reflector 312, an accessory frame 314, another light guide 316, and another optical mechanism 318 m formed of an optical film

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Page 14 1283316 Description of the Invention (10) and a subsidiary 324 fixed to the accessory frame 314 and a second surface 326 are eight s, the display surface of the first surface plate 32 2 of the Φ 2 . When the light knife two main _ 匕 panel 302 and the auxiliary surface can have other light sources) emit J from = 2 light source 328 (or can also be r6 =: i = r4 ^ by optical ί j = ί 16, then ^ , depending on the number of lights, the location, and the main panel 3 〇 2 and attached

The degree of =2 anti-brightness needs to be set. Can be half-transparent for half

Please refer to FIG. 9 and FIG. 9 is a schematic view showing the assembly of the double-sided display liquid crystal display structure 300 of FIG. As shown in FIG. 9, a top polarizing film 334 is disposed on the second surface 326 of the sub-panel, and a bottom polarizing film 338 is disposed on the third surface 336 opposite to the second surface 326, and the sub-frame is attached. The groove wall 342 on 314 in fact contains a high salt 344 and a low wall 346. The thickness of the bottom polarizing film 338 is 0.4 mm, the thickness of the top polarizing film 334 is 0.275 mm, the total thickness of the upper panel 322 and the lower panel is 1.0 mm, and the thickness of the sub frame 3 1 4 is 1 · 3 mm. Therefore, the bottom polarizing film 338 can be mounted on the low wall 346 by the height of the high wall 344 and the low wall 34 6 during assembly, and the optical mechanism 318 and the light guide plate 316 occupy the low wall 346. Thickness, just pay attention to the proper clearance between the accessory panel 3 2 2 and the various optical films (not shown in the figure). Such a

Page 15 1283316 V. Inventive Note (π), the thickness of the sub frame 3 1 4 overlaps with the thickness of the sub-panel 3 2 2 and the light guide plate 3 16 , and does not increase the entire frame due to the presence of the sub-frame 314 . The thickness of the liquid crystal display structure 300 is displayed on both sides. In addition, the accessory panel of the present invention may also be a super twisted nematic liquid crystal display (STN-LCD) panel depending on the needs of practical applications, but in this case, the adoption and design configuration of various optical originals. , you must also make the appropriate changes. Since the double-sided display liquid crystal display structure of the present invention separates the main frame from the auxiliary frame into two components during production, the main frame houses the main panel, and the auxiliary panel is fixed on the auxiliary frame, and then the main frame is The accessory frames are assembled together. Therefore, not only when producing different types or types of double-sided display liquid crystal display structures, but also because the size and position of the auxiliary panels are different, while changing the design of the main frame, it is also possible to The retaining wall is specially designed in size to overlap the thickness of the accessory panel with the thickness of the accessory frame, or to overlap the thickness of the light guide plate and the accessory panel with the thickness of the accessory frame, so that the total thickness of the module is not due to the accessory frame. The existence of the increase. When the double-sided display liquid crystal display structure of the present invention is applied to an actual production line, not only the time for re-opening and verifying the main frame can be saved, the speed of product innovation can be accelerated, the low cost can be produced, and the light and short principle can be met. New products.

Page 16 1283316 V. Description of the Invention (12) Compared with the conventional double-sided display liquid crystal display structure, the double-sided display liquid crystal display structure of the present invention first separates the main frame from the auxiliary frame into two components, so that the main frame The main panel is housed, and the accessory panel is fixed on the accessory frame, and the main frame is assembled with the accessory frame. In this way, each time a different type or type of double-sided display liquid crystal display structure is produced, it is not necessary to change the design of the main frame at the same time because the size and position of the auxiliary panel are different, and the re-opening and verification can be saved. Time, which in turn speeds up the product launch and reduces production costs. At the same time, in the present invention, by using a special design of the retaining wall on the accessory frame, a light guide plate is used to cause double-sided illumination, and the thickness of the auxiliary panel is overlapped with the thickness of the accessory frame; or two The light guide plate overlaps the thickness of the light guide plate and the auxiliary panel with the thickness of the accessory frame, so that the total thickness of the module is not increased at all due to the presence of the accessory frame. Especially when many different models of products can share a major frame design, the cost reduction is even more impressive. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the invention are to be covered by the present invention.

Page 17 1283316 Brief Description of the Drawings Brief Description of the Drawings Figures 1 to 2 show a partial schematic view of a double-sided display liquid crystal display structure of the present invention. FIG. 3 is a partial schematic view showing the structure of the double-sided display liquid crystal display of the present invention. Figure 4 is a schematic view of the double-sided display liquid crystal display structure of the present invention after assembly. Figure 5 is a schematic view of an accessory frame in a double-sided display liquid crystal display structure of the present invention. « Figure 6 is an exploded view of a double-sided display liquid crystal display structure having a light guide plate of the present invention. Figure 7 is a schematic view showing the assembly of the double-sided display liquid crystal display structure of Figure 6. Figure 8 is an exploded view of a double-sided display liquid crystal display structure having two light guide plates according to the present invention. FIG. 9 is a schematic view showing the assembly of the double-sided display liquid crystal display structure of FIG. Symbolic representation of the schema 1 0 0, 2 0 0, 3 0 0 double-sided display liquid crystal display structure 102, 202, 302 main panel 104, 222, 324 first surface 106, 224, 326 second surface 108, 208, 308 Main frame 112 first opening

Page 18 1283316 Schematic description 114, 216, 314 116, 2 3 6, 342 118 > 218 > 322 1 22 Third surface 126 flanges 204, 212, 304, 206 > 306 > 316 214, 312 226 >328 228 , 334 232 > 336 2 34,338 2 3 8 > 344 242 , 346 Sub frame Retaining Wall Accessory Panel 124 Second Opening 128 Groove 318 Optical Mechanism Light Guide Plate Reflector Light Emitting Diode Light source top polarizing film third surface bottom polarizing film rfj wall low wall

Claims (1)

1283316 VI. Patent application scope 1. A double-sided display structure comprises: a first panel; a main frame for accommodating and fixing the first panel, the main frame further comprising an exposed portion of the first panel a first opening; an auxiliary frame fixed to the other side of the main frame fixed to the first panel, and the auxiliary frame includes a second opening corresponding to the first opening; and a second panel, the setting The accessory frame is away from one side of the main frame and covers the second opening. 2. The double-sided display structure of claim 1, wherein the first panel comprises an opposite one of the first surface and a second surface, and the first surface is the display surface of the first panel. 3. The double-sided display structure of claim 2, wherein the second panel comprises an opposite third surface and a fourth surface, and the third surface is opposite to the second surface, the fourth The surface is the display surface of the second panel. Page 20 Circumference Fan Li Special application is required to be attached to the main frame. The structure and the frame, the main display machine is to be fixed to the double fixed one of the fixed items by the number of the machine to be fixed, the fixed one is set to the top of the frame with 9 boxes of 1283316 A first light guide plate is disposed between the patent range frame and the first panel. 6. The double-sided display structure of claim 5, wherein a space surrounded by a low wall of the accessory frame is for accommodating a bottom polarizing film of the second panel. 7. The double-sided display structure of claim 5, wherein the double-sided display structure further comprises a second light guide plate disposed between the auxiliary frame and the second panel. 8. The double-sided display structure of claim 7, wherein a space surrounded by a low wall of the accessory frame is for accommodating the second light guide plate, and one of the accessory frames is surrounded by a high wall. The space is used to accommodate the second panel. 10. The double-sided display structure of claim 9, wherein each of the first fixing mechanisms is a groove, and the edge of the accessory frame further comprises a plurality of fitting mechanisms for fitting and correspondingly Each of the grooves acts to secure the accessory frame to the main frame. Page 21 1283316 Page 22