CN1296756C - Double-sided display structure - Google Patents

Abstract

The present invention provides a double-sided display structure, which includes a first panel for accommodating a main frame for fixing the first panel, the main frame including a first opening for exposing a portion of the first panel, an auxiliary frame fixed to the other side of the main frame for fixing the first panel, the auxiliary frame including a second opening corresponding to the first opening, and a second panel arranged on a side of the auxiliary frame away from the main frame and covering the second opening.

Description

Double-sided display structure

technical field

The invention relates to a double-sided display structure, in particular to a replaceable liquid crystal display structure with double-sided display.

Background technique

Liquid crystal display is a kind of thin and small plane display device. Compared with CRT display, the advantages of liquid crystal display are very obvious. Since the liquid crystal display uses the technology of controlling the light transmittance by using the rotation state of the liquid crystal molecules, and then realizes the display of colors, its brightness and darkness are adjusted by controlling the light transmittance. When the color remains unchanged, the liquid crystal molecules also remain unchanged, so the liquid crystal display has the advantages of stable picture and no flickering feeling. At the same time, because of the technical principle of controlling light transmittance through liquid crystal molecules, the liquid crystal display can make the bottom plate emit light as a whole, and can be truly completely flat. In addition, the liquid crystal display has the advantage of no radiation at all, so even if the user watches the liquid crystal display screen for a long time, it will not cause great damage to the eyes. Coupled with the advantages of small size and low energy consumption, liquid crystal displays are actually star products at present.

Due to the above advantages, liquid crystal displays are widely used in many electrical products, ranging from portable products such as mobile phones, personal digital assistants, notebook computers and digital cameras, to aerospace and medical diagnostic instruments. They are all used, and these portable products were not possible when only CRT monitors were used in the past. With the continuous innovation of products, the related technologies of liquid crystal displays are also constantly advancing. The latest trend is to install double-sided liquid crystal displays on various products. However, no matter what kind of display components are installed on what kind of products, it is necessary to achieve the purpose of being light and handy, easy to assemble, and stable and durable in structure.

However, the existing method for installing a double-sided liquid crystal display on various products is to directly bond two sets of liquid crystal display modules back to back. Such an installation method will increase the weight and thickness of the product, which is completely inconsistent with the trend of lightness, thinness and shortness. Therefore, with the evolution of technology, another existing technology is that the liquid crystal display with double-sided display can share part of the optical components, but when assembling the main panel and the auxiliary panel, the auxiliary panel is fixed to a The main frame of the panel. That is to say, since there is no need for two complete sets of LCD modules, the weight of the product can be reduced, and the thickness can also be reduced, but new problems arise. Because the auxiliary panels are fixed to the main frame, the fixing methods include making some fixing mechanisms directly on the main frame to fix the auxiliary panels, or using an additional iron frame to frame the auxiliary panels and fix them to the main frame. Frame, the former must make a mechanism on the main frame, and 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 design the main frame in advance according to the positioning position and the size, weight and other factors of the subsidiary panels.

When using the method suggested by the above-mentioned prior art to assemble a double-sided liquid crystal display, when the size and position of the auxiliary panel are changed, the main frame must be redesigned, and then the mold is re-opened and verified. The time is quite considerable. Under the current trend of accelerating the speed of product innovation, taking mobile phones as an example, each mobile phone has a different appearance to stimulate consumers' desire to buy, and when new mobile phones continue to appear, the main components have to be redesigned each time. The framework needs to be molded and verified to be mass-produced, which will definitely delay the launch of new products. Therefore, how to provide a replaceable liquid crystal display structure with double-sided display, which not only does not need to change the design of the main frame when changing the position and size of the auxiliary panel, but also is easy to assemble, can ensure the strength of the structure, and at the same time It has become a very important issue to reduce costs by sharing the same main frame design with different models of products.

Contents of the invention

Therefore, the object of the present invention is to provide a double-sided liquid crystal display structure 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 and a main frame for accommodating and fixing the first panel. The main frame includes an exposed part of the first opening of the first panel, an auxiliary frame fixed to the other side of the main frame on which the first panel is fixed, and the auxiliary frame includes a second opening corresponding to the first opening, and A second panel is arranged on the side of the auxiliary frame away from the main frame and covers the second opening, and a fixing mechanism is arranged on the auxiliary frame to fix the second panel.

Due to the double-sided display liquid crystal display structure of the present invention, the main frame and the auxiliary frame are separated into two components first, so that the main frame accommodates the main panel, and the auxiliary panel is fixed on the auxiliary frame, and then the main frame and the auxiliary The frames are assembled together. Therefore, when producing different models or types of double-sided display liquid crystal display structures, it is not necessary to change the design of the main frame at the same time because of the different sizes and positions of the auxiliary panels, which will definitely save time for re-mold opening and verification. , thereby speeding up the speed of product launch and reducing production costs. In addition, the double-sided display liquid crystal display structure of the present invention can use a light guide plate to cause double-sided light emission by specially designing the size of the retaining wall on the auxiliary frame, and make the thickness of the auxiliary panel overlap with the thickness of the auxiliary frame ; or use two light guide plates, and make the thickness of the light guide plate and the auxiliary panel overlap with the thickness of the auxiliary frame, so that the total thickness of the module will not increase at all due to the existence of the auxiliary frame.

Description of drawings

1 to 2 are partial schematic diagrams of a double-sided display liquid crystal display structure of the present invention;

Fig. 3 is a partial schematic diagram of the double-sided display liquid crystal display structure of the present invention;

FIG. 4 is a schematic diagram of the double-sided display liquid crystal display structure of the present invention after assembly;

5 is a schematic diagram of an auxiliary frame in a double-sided liquid crystal display structure of the present invention;

6 is an exploded view of a double-sided display liquid crystal display structure with a light guide plate of the present invention;

FIG. 7 is a schematic diagram of the assembly of the double-sided display liquid crystal display structure of FIG. 6;

8 is an exploded view of a double-sided display liquid crystal display structure with two light guide plates according to the present invention;

FIG. 9 is a schematic diagram of the assembly of the liquid crystal display structure with double-sided display in FIG. 8 .

Detailed ways

Please refer to FIG. 1 to FIG. 2 . FIG. 1 to FIG. 2 are partial schematic diagrams of a double-sided liquid crystal display structure 100 of the present invention. As shown in Figure 1, the double-sided liquid crystal display structure 100 of the present invention includes a main panel 102, the main panel 102 is a liquid crystal display panel, and the main panel 102 includes a first surface 104 and a second surface 106 (please refer to figure 2). In FIG. 1 , only the first surface 104 is shown because of the display direction, and the first surface 104 is the display surface of the main panel 102 . The double-sided liquid crystal display structure 100 of the present invention further includes a main frame 108 for accommodating and fixing the main panel 102 . FIG. 2 is a diagram after turning over the main panel 102 and the main frame 108 in FIG. 1 for a clearer description. As shown in FIG. 2 , the main frame 108 includes a first opening 112 exposing a portion of the second surface 106 .

Please refer to FIG. 3 . FIG. 3 is a partial schematic diagram of a double-sided liquid crystal display structure 100 of the present invention. As shown in FIG. 3 , the double-sided liquid crystal display structure 100 of the present invention includes an auxiliary frame 114 , and the auxiliary frame 114 includes a plurality of retaining walls 116 disposed on the auxiliary frame 114 . The double-sided liquid crystal display structure 100 of the present invention further includes an auxiliary panel 118 disposed on the auxiliary frame 114, and the auxiliary panel 118 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 orientation, and the third surface 122 is the display surface of the auxiliary panel 118 . In addition, the auxiliary frame 114 further includes a second opening (not shown).

Please refer to FIG. 4 . FIG. 4 is a schematic diagram of the assembled double-sided liquid crystal display structure 100 of the present invention. As shown in Figure 4, in the double-sided display liquid crystal display structure 100 of the present invention, the main panel 102 is arranged in the main frame 108, the auxiliary panel 118 is arranged and fixed on the auxiliary frame 114, and then the auxiliary Frame 114 is secured to main frame 108 to complete the assembly. In addition, the auxiliary frame 114 further includes a second opening (not shown), and the second opening (not shown) must correspond to the first opening 112 on the main frame 108 during assembly (please refer to FIG. 2 ). In Fig. 4, the area of the auxiliary frame 114 is equal to the area of the main frame 108, so the auxiliary frame 114 can just be fixed to the entire edge of the main frame 108, which is a relatively ideal design, because in this case , which can not only ensure the strength of the whole structure, but also be easy to assemble. In fact, the design of the auxiliary frame 114 is not limited thereto, as long as it can successfully fix the auxiliary panel 118, be easily assembled to the main frame 108, and ensure a certain overall structural strength, all are within the scope of the present invention.

Various different embodiments may be employed in the present invention for securing the sub-frame 114 to the main frame 108 . For example, a plurality of fixing mechanisms can be provided on the main frame 108, and then the sub-frame 114 can be fixed to the main frame 108 by using these fixing mechanisms, or even by gluing. Please refer to FIG. 5 , which is a schematic diagram of the auxiliary frame 114 in the double-sided liquid crystal display structure of the present invention. As shown in Figure 5, the auxiliary frame 114 includes a plurality of retaining walls 116 and the second opening 124 as mentioned above, and a plurality of flanges 126 arranged on its edges. Front insertion is provided on the corresponding grooves 128 on the main frame 108 (please also refer to FIG. 2 ), so as to complete the assembly and ensure the structural strength of the double-sided liquid crystal display structure 100 shown in FIG. 4 . In fact, the above description is only one of various implementations, even under the premise of using a fixing mechanism, various changes can be made, and it is not limited to fixing the auxiliary frame 114 to the main frame in a fitting manner. frame 108. For example, the fixing mechanism on the main frame 108 is not necessarily designed as a groove 128, and the mechanism on the auxiliary frame 114 can be designed accordingly instead of the flange 126 as the fitting mechanism as described above.

Please refer to FIG. 2 and FIG. 5 again. In the present invention, an adhesive tape (not shown) is used to bond the accessory panel 118 to the accessory frame 114, and a plurality of retaining walls 116 are used to fix the accessory panel 118 to prevent it from sliding. It should be noted that the auxiliary panel 118 must cover the second opening 124, the second opening 124 is corresponding to the first opening 112 on the main frame 108, and the first opening 112 is an exposed part of the second surface 106 (please refer to FIG. 2 and FIG. 4 together), so that light can freely enter and exit between the main panel 102 and the auxiliary panel 118 through the operation of the optical mechanism (not shown) during official operation. In addition, when the subsidiary panel 118 is fixed to the subsidiary frame 114, various different embodiments can also be adopted. For example, a plurality of fixing mechanisms may be provided on the auxiliary frame 114 or on the edge of the second opening 124 , and then the auxiliary panel 118 is fixed to the auxiliary frame 114 by using these fixing mechanisms. In a word, as long as the overall strength of the structure can be ensured and the assembly is easy, all are within the scope of the present invention.

Since the structure disclosed in the present invention is a double-sided display liquid crystal display structure 100, various optical components must be arranged between the main panel 102 and the subsidiary panel 118 to transmit light to the main panel 102 and subsidiary panels 118 when the assembly is completed. The display surfaces of the panel 118 are the first surface 104 and the third surface 122 . Since the design details of various optical components are not the focus of the present invention, only the parts related to the present invention will be described here. In fact, the liquid crystal display structure with double-sided display of the present invention can be realized by using two light guide plates, or one light guide plate to cause double-sided light emission. Please refer to FIG. 6 , which is an exploded view of a double-sided liquid crystal display structure 200 with a light guide plate of the present invention. As shown in Figure 6, the double-sided liquid crystal display structure 200 of the present invention includes a main panel 202, an optical mechanism 204 made of optical films, a light guide plate 206, a main frame 208, and another The optical mechanism 212 formed by the optical film, a reflector 214, an auxiliary frame 216 and an auxiliary panel 218 fixed to the auxiliary frame 216, a first surface 222 and a second surface 224 are the main panel 202 and the auxiliary panel 218 respectively display surface. When the light is emitted from the LED light source 226, it first enters the light guide plate 206, and then is evenly distributed to the main panel 202 by the action of the optical mechanism 204. Since the light guide plate 206 can emit light from both sides (or even has other light sources), the light also is provided to the accessory panel 218 to result in a dual-sided display. In fact, the reflector 214 is not necessarily a double-sided total reflection device. It can be a half-transmission and semi-reflection device or a single-sided total reflection device according to the number and position of the light source and the brightness requirements of the main panel 202 and the auxiliary panel 218. reflective device.

Please refer to FIG. 7 , which is an assembly diagram of the double-sided liquid crystal display structure 200 in FIG. 6 . As shown in Figure 7, on the second surface 224 of the accessory panel 218, a top polarizing film 228 is arranged, on a third surface 232 opposite to the second surface 224, a bottom polarizing film 234 is arranged, and the accessory frame 216 The upper retaining wall 236 actually includes a high wall 238 and a low wall 242 . The thickness of the bottom polarizing film 234 is 0.4mm, the thickness of the top polarizing film 228 is 0.275mm, the total thickness of the upper and lower panels of the subsidiary panel 218 is 1.0mm, and the thickness of the subsidiary frame 216 is 0.8mm. Therefore, when assembling, the height of the high wall 238 and the low wall 242 can be designed first, the third surface 232 can be erected on the low wall 242, and the bottom polarizing film 234 can just be suspended, and then the auxiliary frame 216 and the first One side of the three surfaces 232 is sequentially provided with a reflective plate 214 and an optical mechanism 212 (only a part is shown in FIG. 7 ). In this way, not only an appropriate gap is maintained between the subsidiary panel 218 and various optical films, but also the thickness of the subsidiary frame 216 overlaps with the thickness of the subsidiary panel 218, and the existence of the subsidiary frame 216 will not increase the overall double-sided thickness. The thickness of the liquid crystal display structure 200 is displayed.

Please refer to FIG. 8 , which is an exploded view of a double-sided liquid crystal display structure 300 with two light guide plates according to the present invention. As shown in FIG. 8 , the double-sided liquid crystal display structure 300 of the present invention includes a main panel 302, an optical mechanism 304 made of optical films, a light guide plate 306, a main frame 308, and a reflector from top to bottom. 312, an auxiliary frame 314, another light guide plate 316, another optical mechanism 318 made of optical film, and an auxiliary panel 322 fixed to the auxiliary frame 314, a first surface 324 and a second surface 326 are respectively the main The display surface of panel 302 and accessory panel 322 . When the light is emitted from the LED light source 328 (or there may be other light sources), it first enters the light guide plate 306 of the main panel 302, and then is evenly distributed to the main panel 302 by the optical mechanism 304. At the same time, the light also first enters the auxiliary panel The light guide plate 316 of 322 is evenly distributed to the auxiliary panel 322 through the function of the optical mechanism 318 to form a double-sided display. In fact, the reflector 312 is not necessarily a double-sided total reflection device. It can be a half-transmission and semi-reflection device or a single-sided total reflection device according to the number and position of light sources and the brightness requirements of the main panel 302 and the auxiliary panel 322. reflective device.

Please refer to FIG. 9 , which is an assembly diagram of the double-sided liquid crystal display structure 300 in FIG. 8 . As shown in Figure 9, on the second surface 326 of the subsidiary panel 322, a top polarizing film 334 is arranged, on a third surface 336 opposite to the second surface 326, a bottom polarizing film 338 is arranged, and the subsidiary frame 314 The upper retaining wall 342 actually includes a high wall 344 and a low wall 346 . The thickness of the bottom polarizing film 338 is 0.4mm, the thickness of the top polarizing film 334 is 0.275mm, the total thickness of the upper and lower panels of the accessory panel 322 is 1.0mm, and the thickness of the accessory frame 314 is 1.3mm. Therefore, during assembly, the height of the high wall 344 and the low wall 346 can be designed first, the bottom polarizing film 338 can be erected on the low wall 346, and the optical mechanism 318 and the light guide plate 316 can occupy the thickness of the low wall 346. Note that a proper gap should be maintained between the accessory panel 322 and various optical films (not shown in the figure). In this way, the thickness of the auxiliary frame 314 overlaps with the thickness of the auxiliary panel 322 and the light guide plate 316 , and the thickness of the entire double-sided liquid crystal display structure 300 will not be increased due to the existence of the auxiliary frame 314 .

In addition, the accessory panel in 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 elements The method must also be changed accordingly.

Because the double-sided display liquid crystal display structure of the present invention separates the main frame and the auxiliary frame into two components during manufacture, the main frame accommodates the main panel, and the auxiliary panel is fixed on the auxiliary frame, and then the main frame and the auxiliary The frames are assembled together. Therefore, not only when different models or types of double-sided display liquid crystal display structures are produced each time, it is not necessary to change the design of the main frame at the same time because of the different sizes and positions of the auxiliary panels, but also by adjusting the baffles on the auxiliary frames. The size of the wall is specially designed to make the thickness of the auxiliary panel overlap with the thickness of the auxiliary frame, or make the thickness of the light guide plate and the auxiliary panel overlap with the thickness of the auxiliary frame, so the total thickness of the module will not be due to the existence of the auxiliary frame. And increase. When the double-sided display liquid crystal display structure of the present invention is used in an actual production line, it can not only save the time for re-opening the mold and verifying the main frame, speed up the speed of product innovation, but also can produce low-cost, and conform to the principle of lightness, thinness and shortness of new products.

Compared with the existing double-sided display liquid crystal display structure, the double-sided display liquid crystal display structure of the present invention first separates the main frame and the auxiliary frame into two components, makes the main frame accommodate the main panel, and fixes the auxiliary panel On the auxiliary frame, assemble the main frame and the auxiliary frame together. In this way, when producing different models or types of double-sided display LCD structures, it is not necessary to change the design of the main frame at the same time because of the different sizes and positions of the auxiliary panels, which will definitely save re-opening and verification. time, thereby speeding up the speed of product launch and reducing production costs. At the same time, in the present invention, by specially designing the size of the retaining wall on the auxiliary frame, one light guide plate can be used to cause double-sided light emission, and the thickness of the auxiliary panel can be overlapped with the thickness of the auxiliary frame; or two light guide plates can be used. The light plate, and make the thickness of the light guide plate and the auxiliary panel overlap with the thickness of the auxiliary frame, so that the total thickness of the module will not increase at all due to the existence of the auxiliary frame. Especially when many different models of products can share a main frame design, the cost reduction is even more considerable.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the patent of the present invention.

Claims (10)

1. a two-side display structure includes:

One first panel;

One main framework is used for ccontaining this first panel of fixing, and this main framework also includes first perforate that exposes this first panel of part;

One attached framework is fixed in the opposite side of this this first panel of main frame fixation, and this attached framework includes second perforate that corresponds to this first perforate; And one second panel, be arranged at this attached framework away from a side of this main framework and cover this second perforate, and on this attached framework, a fixed mechanism be set, to fix this second panel.

2. two-side display structure as claimed in claim 1, wherein this first panel includes an opposite first surface and a second surface, and this first surface is the display surface of this first panel.

3. two-side display structure as claimed in claim 2, wherein this second panel includes opposite one the 3rd surface and one the 4th surface, and the 3rd surface is with respect to this second surface, and the 4th surface is the display surface of this second panel.

4. two-side display structure as claimed in claim 1, wherein this first perforate and this second perforate form a space, make light pass in and out this first panel and this second panel via this space free.

5. two-side display structure as claimed in claim 1 wherein is provided with one first light guide plate between this main framework and this first panel.

6. two-side display structure as claimed in claim 5, wherein to center on the space that forms be a end light polarizing film in order to ccontaining this second panel to a parapet of this attached framework.

7. two-side display structure as claimed in claim 5, wherein this two-side display structure includes one second light guide plate in addition and is arranged between this attached framework and this second panel.

8. two-side display structure as claimed in claim 7, wherein a parapet of this attached framework centers on the space that forms in order to ccontaining this second light guide plate, and it is in order to ccontaining this second panel that a high-wall of this attached framework centers on the space that forms.

9. two-side display structure as claimed in claim 1 wherein is provided with a plurality of fixed mechanisms on this main framework, and this attached framework utilizes respectively this fixed mechanism on this main framework to be fixed to this main framework.

10. two-side display structure as claimed in claim 1, wherein this fixed mechanism is a barricade, and this second panel utilizes this barricade to be fixed in this attached framework.

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