A flexible test equipment for bistable liquid crystal screens

Abstract

The utility model provides a kind of bistable liquid crystal screen flexible test equipment, including bottom plate, support frame, mounting plate, first air cylinder, fixed bracket, limit frame and second air cylinder, the upside of the bottom plate is fixed with two support frames, and two fixed brackets are slidably installed between support frame;The corresponding side of the fixed bracket is fixed with mounting plate by first air cylinder;Limit frame is slidably installed between support frame, and the downside of limit frame is fixed with bottom plate by second air cylinder;Limit frame is arranged between two fixed brackets.The utility model is provided, when using, can make bistable liquid crystal screen present '' C '' shape and '' S '' shape, to further can more comprehensively simulate various bending conditions of bistable liquid crystal screen in actual use, wherein, when making bistable liquid crystal screen present '' C '' shape, can make the fixed end of bistable liquid crystal screen adapt to bending angle.

Description

Technical Field

[0001] This utility model belongs to the field of LCD screen flexibility testing technology, and in particular relates to a bistable LCD screen flexibility testing device. Background Technology

[0002] Bistable liquid crystal display (BMS) flexible testing equipment is an instrument specifically designed to test the flexibility and durability of BMS. As a display device with low power consumption and high contrast, BMS is widely used in fields such as electronic paper and wearable devices. Its flexibility directly affects the product's lifespan and user experience. Therefore, it is necessary to use specialized testing equipment to simulate its bending and folding states in actual use in order to evaluate its performance stability under repeated deformation. In existing technologies, flexible testing equipment for bistable liquid crystal displays typically consists of a fixing mechanism, a driving mechanism, and a support structure. The fixing mechanism is used to clamp both ends of the bistable liquid crystal display, the driving mechanism usually uses a cylinder or motor to drive the fixing mechanism to move relative to the bistable liquid crystal display, causing the bistable liquid crystal display to bend, and the support structure serves to support the overall equipment and assist in fixing it. However, existing bistable LCD screen flexibility testing equipment has significant limitations: First, the existing bistable LCD screen flexibility testing equipment has a relatively simple function, and can only realize the "C"-shaped bending test of bistable LCD screens. It cannot simulate complex bending states such as "S"-shaped bending that may occur in actual applications, making it difficult for the test results to fully reflect the performance of bistable LCD screens in diverse usage scenarios. Secondly, when conducting the "C"-shaped bending test, the existing equipment lacks effective support for the middle part of the bistable LCD screen, which causes uneven stress on the middle part of the bistable LCD screen during the bending process, making it prone to local excessive deformation and affecting the accuracy of the test. In addition, the clamping end of the fixing mechanism in existing bistable liquid crystal display flexible testing equipment is mostly fixed and cannot be adaptively adjusted according to the bending angle of the bistable liquid crystal display. This results in a mismatch between the clamping part and the bending angle of the bistable liquid crystal display, which in turn causes the edge of the bistable liquid crystal display to be damaged due to concentrated force.

[0003] Therefore, it is essential to invent a flexible testing device for bistable liquid crystal displays. Utility Model Content

[0004] To address the above problems, this utility model proposes a bistable liquid crystal display screen flexibility testing device, and the technical solution used is as follows: A bistable liquid crystal display flexible testing device includes a base plate, support frames, a mounting plate, a first cylinder, a fixed frame, a limiting frame, and a second cylinder. Two support frames are bolted to the upper side of the base plate, and the two support frames are arranged parallel to each other. Two fixed frames are slidably installed between the support frames, and the fixed frames are arranged mirror images of each other. Corresponding sides of each fixed frame are bolted to the output end of the corresponding first cylinder, and the base of each first cylinder is bolted to the corresponding mounting plate, which is bolted between the two support frames. A limiting frame is slidably installed between the support frames, and the lower side of the limiting frame is bolted to the output end of the second cylinder. The base of the second cylinder is bolted to the upper side of the base plate. The limiting frame is positioned between the two fixed frames. Both the first and second cylinders are electrically connected to an external control computer via data cables.

[0005] Furthermore, the fixing frame includes a first sliding frame, a first roller, and slots. The two ends of the first sliding frame are slidably connected to the corresponding support frame, and the outer side of the first sliding frame is fixed to the output end of the corresponding first cylinder. The first roller is rotatably mounted inside the first sliding frame through a support bearing. The outer side of the first roller is evenly provided with several slots. With this arrangement, when one end of the bistable liquid crystal screen is placed inside the corresponding slot, the first roller can rotate accordingly as the bistable liquid crystal screen bends, thereby making the opening direction of the slot adapt to the bending angle of the bistable liquid crystal screen.

[0006] Furthermore, several card slots are provided, and the size of each card slot is adapted to different types of bistable liquid crystal screens; the inner wall of each card slot is fixed with a rubber pad. This arrangement can fix bistable liquid crystal screens of different thicknesses. In addition, the rubber pads can prevent the card slots from damaging the bistable liquid crystal screens.

[0007] Furthermore, the limiting frame includes a second sliding frame, a rotating plate, a second roller, and a servo motor. Both ends of the second sliding frame are slidably connected to corresponding support frames, and the lower side of the second sliding frame is fixed to the output end of the second cylinder by bolts. Inside the second sliding frame, two rotating plates are rotatably mounted via support bearings, and two second rollers are rotatably mounted between the two rotating plates via support bearings. The outer side of the second sliding frame is fixed with a servo motor by bolts, and the output end of the servo motor is fixed to one of the rotating plates. The servo motor is electrically connected to an external production computer via a data cable. This configuration, in conjunction with the fixed frame, allows the bistable LCD screen to bend into a "C" or "S" shape, thereby improving the testing quality of the flexibility of the bistable LCD screen.

[0008] Furthermore, rubber sleeves are fixed to the outer surfaces of the second rollers. This design can prevent the second rollers from damaging the bistable LCD screen.

[0009] Compared with the prior art, the present invention has the following beneficial effects: This invention provides two detection methods. The first method involves moving two fixed frames relative to each other using a first cylinder, causing the bistable LCD screen to bend into a "C" shape. A first roller inside the fixed frame causes the clamping end of the bistable LCD screen to bend accordingly. The second cylinder, in conjunction with a limiting frame, supports the lower middle side of the bistable LCD screen, allowing it to bend evenly. The second method involves passing the bistable LCD screen through the limiting frame and fixing both ends to the corresponding fixed frames. Adjusting the limiting frame's working state allows the bistable LCD screen to form an "S" shape. The first cylinder then moves the two fixed frames in the same direction, causing the bistable LCD screen to form an "S" shape at different positions. This more comprehensively simulates various bending conditions of the bistable LCD screen in actual use, thus more accurately assessing its flexibility and durability. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a structural schematic diagram of the fixing frame of this utility model.

[0013] Figure 3 This is a structural schematic diagram of the limiting frame of this utility model.

[0014] In the picture: 1-Base plate, 2-Support frame, 3-Mounting plate, 4-First cylinder, 5-Fixing frame, 51-First sliding frame, 52-First roller, 53-Slot, 6-Limiting frame, 61-Second sliding frame, 62-Rotating plate, 63-Second roller, 64-Servo motor, 7-Second cylinder. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Please see Figures 1 to 3 As shown, this utility model is a bistable liquid crystal screen flexible testing device, including a base plate 1, a support frame 2, a mounting plate 3, a first cylinder 4, a fixed frame 5, a limiting frame 6, and a second cylinder 7. Two support frames 2 are bolted to the upper side of the base plate 1, and the two support frames 2 are arranged parallel to each other. Two fixed frames 5 are slidably installed between the support frames 2, and the fixed frames 5 are mirror images of each other. The corresponding sides of the fixed frames 5 are bolted to the output ends of the corresponding first cylinders 4, and the bases of the first cylinders 4 are bolted to the corresponding mounting plates 3, which are bolted between the two support frames 2. A limiting frame 6 is slidably installed between the support frames 2, and the lower side of the limiting frame 6 is bolted to the output end of the second cylinder 7. The base of the second cylinder 7 is bolted to the upper side of the base plate 1. The limiting frame 6 is positioned between the two fixed frames 5. The first cylinder 4 and the second cylinder 7 are both electrically connected to an external control computer via data cables.

[0018] Specifically, the fixing frame 5 includes a first sliding frame 51, a first roller 52, and a slot 53. The two ends of the first sliding frame 51 are slidably connected to the corresponding support frame 2, and the outer side of the first sliding frame 51 is fixed to the output end of the corresponding first cylinder 4. The first roller 52 is rotatably mounted inside the first sliding frame 51 through a support bearing. The outer side of the first roller 52 is evenly provided with several slots 53. This arrangement allows one end of the bistable LCD screen to be placed inside the corresponding slot 53, thereby fixing one end of the bistable LCD screen. Furthermore, when the two fixing frames 5 are moved relative to each other by the first cylinder 4, the first roller 52 can rotate accordingly with the bending of the bistable LCD screen, so that the opening direction of the slot 53 is adapted to the bending angle of the bistable LCD screen, thereby preventing damage to the edge of the bistable LCD screen.

[0019] Specifically, there are several card slots 53, and the size of each card slot 53 is adapted to different types of bistable liquid crystal screens. Each card slot 53 has a rubber pad fixed to its inner wall. This arrangement can fix bistable liquid crystal screens of different thicknesses. In addition, the rubber pads can prevent the card slots 53 from damaging the bistable liquid crystal screens.

[0020] Specifically, the limiting frame 6 includes a second sliding frame 61, a rotating plate 62, a second roller 63, and a servo motor 64. Both ends of the second sliding frame 61 are slidably connected to corresponding support frames 2, and the lower side of the second sliding frame 61 is fixed to the output end of the second cylinder 7 by bolts. Inside the second sliding frame 61, two rotating plates 62 are rotatably mounted via support bearings, and two second rollers 63 are rotatably mounted between the two rotating plates 62 via support bearings. The outer side of the second sliding frame 61 is fixed with a servo motor 64 by bolts, and the output end of the servo motor 64 is fixed to one of the rotating plates 62. The servo motor 64 is electrically connected to an external production computer via a data cable. When the two first cylinders 4 drive the two fixed frames 5 to bend the bistable LCD screen, the servo motor 64 can drive the rotating plate 62 to bend. The two second rollers 63 should be rotated so that they are on the same vertical line. Then, the second cylinder 7 is used to make the upper second roller 63 always support the lower side of the middle of the bistable liquid crystal screen, so that the bistable liquid crystal screen can be bent into a "C" shape evenly. In addition, the bistable liquid crystal screen can be passed between the two second rollers 63 and the two ends of the bistable liquid crystal screen are fixed to the corresponding fixing frame 5 respectively. Then, the servo motor 64 and the rotating plate 62 can drive the two second rollers 63 to make the bistable liquid crystal screen present an "S" shape, so as to test the flexibility of the bistable liquid crystal screen. At the same time, the first cylinder 4 makes the two fixing frames 5 move in the same direction (the bistable liquid crystal screen can move accordingly in the middle of the two second rollers 63), so that the bistable liquid crystal screen presents an "S" shape in different positions.

[0021] Specifically, the outer surface of the second roller 63 is fixed with a rubber sleeve. This design can prevent the second roller 63 from damaging the bistable LCD screen.

[0022] Specifically, controlling the pushing distance of the first cylinder 4 and the second cylinder 7, as well as the rotation angle of the servo motor 64, through an external production computer is a mature existing technology and will not be described further.

[0023] Please see Figure 1-3 As shown, this utility model is a bistable liquid crystal screen flexibility testing device, and its working principle is as follows: When in use, it can provide two detection methods: The first testing method: First, fix both ends of the bistable LCD screen to the corresponding fixing frame 5. Then, use the first cylinder 4 to move the two fixing frames 5 relative to each other, so that the bistable LCD screen is bent into a "C" shape. The second cylinder 7 cooperates with the limiting frame 6 to support the lower side of the middle part of the bistable LCD screen. The second detection method: First, the bistable LCD screen is passed through the limiting frame 6, and the two ends of the bistable LCD screen are fixed on the corresponding fixing frame 5 respectively. Then, by adjusting the working state of the limiting frame 6, the bistable LCD screen is made to present an "S" shape. Then, the first cylinder 4 is used to make the two fixing frames 5 move in the same direction, so that the bistable LCD screen presents an "S" shape at different positions.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A bistable liquid crystal display flexible testing device, comprising a base plate (1), a support frame (2), a mounting plate (3), a first cylinder (4), a fixing frame (5), a limiting frame (6), and a second cylinder (7), characterized in that: Two support frames (2) are fixed on the upper side of the base plate (1), and the two support frames (2) are arranged parallel to each other; two fixed frames (5) are slidably installed between the support frames (2), and the fixed frames (5) are arranged in a mirror image; the corresponding sides of the fixed frames (5) are fixed to the output end of the corresponding first cylinder (4), and the base of the first cylinder (4) is fixed to the corresponding mounting plate (3), which is fixed between the two support frames (2); a limit frame (6) is slidably installed between the support frames (2), and the lower side of the limit frame (6) is fixed to the output end of the second cylinder (7), and the base of the second cylinder (7) is fixed on the upper side of the base plate (1); the limit frame (6) is arranged between the two fixed frames (5); the first cylinder (4) and the second cylinder (7) are electrically connected to an external control computer through a data cable.

2. The bistable liquid crystal display flexible testing device as described in claim 1, characterized in that: The fixed frame (5) includes a first sliding frame (51), a first roller (52) and a slot (53). The two ends of the first sliding frame (51) are slidably connected to the corresponding support frame (2), and the outer side of the first sliding frame (51) is fixed to the output end of the corresponding first cylinder (4). The first roller (52) is rotatably installed inside the first sliding frame (51), wherein the outer side of the first roller (52) is evenly provided with several slots (53).

3. The bistable liquid crystal display flexible testing device as described in claim 2, characterized in that: The card slots (53) are provided in several ways, and the size of the card slots (53) is adapted to different types of bistable liquid crystal screens; the inner walls of the card slots (53) are all fixed with rubber pads.

4. The bistable liquid crystal display flexible testing device as described in claim 1, characterized in that: The limiting frame (6) includes a second sliding frame (61), a rotating plate (62), a second roller (63), and a servo motor (64). Both ends of the second sliding frame (61) are slidably connected to the corresponding support frame (2), and the lower side of the second sliding frame (61) is fixed to the output end of the second cylinder (7). Two rotating plates (62) are rotatably installed inside the second sliding frame (61), and two second rollers (63) are rotatably installed between the two rotating plates (62). A servo motor (64) is fixed on the outer side of the second sliding frame (61), and the output end of the servo motor (64) is fixed to one of the rotating plates (62). The servo motor (64) is electrically connected to an external production computer via a data cable.

5. The bistable liquid crystal display flexible testing device as described in claim 4, characterized in that: The outer side of the second roller (63) is fixed with a rubber sleeve.

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