Liquid crystal display screen structure

Abstract

The utility model relates to a liquid crystal display screen structure. The liquid crystal display screen structure comprises a first substrate, a second substrate and a liquid crystal layer, the first substrate and the second substrate are parallel, opposite and arranged at an interval, and the liquid crystal layer is clamped between the first substrate and the second substrate; the liquid crystal layer is provided with a first connecting piece, a liquid crystal and an anti-vibration assembly; the first connecting piece is arranged at the edge of the first substrate and the edge of the second substrate in a surrounding manner and is used for connecting the first substrate and the second substrate; the liquid crystal and the anti-vibration assembly are independently distributed in the range defined by the first connecting piece. According to the liquid crystal display screen structure, abnormal display of the liquid crystal display screen caused by vibration can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a liquid crystal display screen structure. Background Art

[0002] A liquid crystal display screen is a display screen using liquid crystal as a material. In recent years, with the rapid development of liquid crystal display technology, liquid crystal display screens have been widely used in production and life. For liquid crystal display screens applied to vehicle-mounted products, because a large vibration is generated during the driving of an automobile or a motorcycle, the performance requirements for various aspects of the liquid crystal display screen applied to vehicle-mounted products are relatively high, especially the anti-vibration ability. However, the liquid crystal display screens on current vehicle-mounted products often show abnormal displays when vibrating during vehicle driving, bringing great inconvenience to users and even causing dangerous accidents due to misreading caused by abnormal displays. Content of the Utility Model

[0003] Based on this, the purpose of the utility model is to provide a liquid crystal display screen structure. By setting a first connecting member to connect a first substrate and a second substrate, and then arranging an anti-vibration component in the liquid crystal layer sandwiched between the first substrate and the second substrate, it can not only prevent the first substrate and the second substrate from moving in opposite directions due to external forces, but also prevent them from moving in opposite directions, so that the same distance is always maintained between the first substrate and the second substrate, avoiding abnormal display of the liquid crystal display screen caused by vibration.

[0004] A liquid crystal display screen structure includes:

[0005] A first substrate, a second substrate and a liquid crystal layer;

[0006] The first substrate and the second substrate are parallel and opposite to each other and are arranged at intervals, and the liquid crystal layer is sandwiched between the first substrate and the second substrate;

[0007] The liquid crystal layer is provided with a first connecting member, liquid crystal and an anti-vibration component; the first connecting member surrounds the edges of the first substrate and the second substrate and is used to connect the first substrate and the second substrate; the liquid crystal and the anti-vibration component are independently distributed within the range surrounded by the first connecting member.

[0008] Further, the anti-vibration component includes a second connecting member and a support member, and the second connecting member and the support member are independently arranged;

[0009] Both ends of the second connecting member are respectively connected to the first substrate and the second substrate, and both ends of the support member are respectively abutted against the first substrate and the second substrate.

[0010] Further, a fixing layer is coated on the outside of the support member, and the support member is fixedly connected to the first substrate or the second substrate through the fixing layer.

[0011] Further, the anti-vibration assembly includes a second connecting member and a support member, and the second connecting member covers the support member;

[0012] Both ends of the anti-vibration assembly are respectively connected to the first substrate and the second substrate through the second connecting member.

[0013] Further, the viscosity coefficient range of the liquid crystal is 73-129 mm 2 .s -1 .

[0014] Further, the support member is a sphere or a cube and is made of a glass material.

[0015] Further, the support member is a glass sphere, and its diameter range is 0.004-0.009 mm.

[0016] Further, the second connecting member is spherical, and its diameter range is 0.1-0.2 mm.

[0017] Further, the second connecting member is linear, and its cross-section parallel to the plane of the first substrate is circular or square; when the cross-section is circular, its diameter range is 0.1-0.2 mm, and when the cross-section is square, its width range is 0.1-0.2 mm.

[0018] Further, the first connecting member is linear, and its cross-section perpendicular to the plane of the first substrate is circular or square; when the cross-section is circular, its diameter range is 1-2 mm, and when the cross-section is square, its width range is 1-2 mm.

[0019] The beneficial effects of the present utility model are as follows:

[0020] (1) By providing the first connecting member to connect the first substrate and the second substrate, and then providing the anti-vibration assembly in the liquid crystal layer sandwiched between the first substrate and the second substrate, it is possible to prevent the first substrate and the second substrate from moving in opposite directions due to external forces, and also prevent them from moving in opposite directions, so that the same distance is always maintained between the first substrate and the second substrate, avoiding abnormal display of the liquid crystal display caused by vibration;

[0021] (2) By providing the second connecting member and the support member independent of the liquid crystal in the liquid crystal layer, and the second connecting member is simultaneously connected to the first substrate and the second substrate, and the support member abuts against the first substrate and the second substrate, so that the second connecting member and the support member are fixed to the liquid crystal layer independently of the liquid crystal, and without affecting the liquid crystal, it is possible to effectively prevent the first substrate and the second substrate from moving;

[0022] (3) Coat a fixing layer on the support member, which can increase the fixed connection between the support member and the first substrate or the second substrate. Even in the case of very strong vibration intensity, the support member can still be well fixed in a certain position to maximize the supporting effect of the support member and prevent the first substrate and the second substrate from moving in opposite directions;

[0023] (4) Use a liquid crystal with high viscosity, which can reduce the fluidity of the liquid crystal, alleviate the abnormal arrangement of the liquid crystal during vibration, and further improve the anti-vibration ability of the liquid crystal display screen;

[0024] (5) By designing the sizes and shapes of the first connecting member, the second connecting member and the support member, without affecting the normal display, it is convenient for the first connecting member, the second connecting member and the support member to be replaceably connected or abutted against the first substrate or the second substrate, so as to more effectively prevent the first substrate and the second substrate from moving.

[0025] For better understanding and implementation, the present utility model will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0026] Figure 1 It is a partial schematic diagram of the structure of the liquid crystal display screen provided by the embodiment of the present application;

[0027] Figure 2 It is Figure 1 a cross-sectional view taken along the A-A direction in

[0028] Figure 3 It is a cross-sectional view of the structure of the liquid crystal display screen provided by a further embodiment of the present application;

[0029] Figure 4 It is a cross-sectional view of the structure of the liquid crystal display screen provided by another embodiment of the present application;

[0030] In the figure: 10 - first substrate; 20 - second substrate; 30 - liquid crystal layer; 31 - first connecting member; 32 - liquid crystal; 33, 33' - anti-vibration components; 331, 331' - second connecting members; 332, 332' - support members; 333 - fixing layer. Detailed Embodiment

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "vertical direction", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] The main structure of a liquid crystal display screen is a very thin layer of liquid crystal sandwiched between two glass plates. In view of the abnormal display of the liquid crystal display screen of existing in-vehicle products, through analysis, it is found that in the currently used liquid crystal display products, the upper and lower glass plates will move relatively due to vibration, thus affecting the liquid crystal arrangement between the two glass plates, and further causing abnormal display. Especially for large-size liquid crystal display screens, this problem is more likely to occur. Therefore, technicians designed the structure of the liquid crystal display screen to prevent the two glass plates from moving relatively during vibration.

[0035] Based on this, the present utility model provides a liquid crystal display screen structure. By setting a first connecting member to connect the first substrate and the second substrate, and then setting a second connecting member and a supporting member in the liquid crystal layer sandwiched between the first substrate and the second substrate, it can not only prevent the first substrate and the second substrate from moving in opposite directions due to external forces, but also prevent them from moving in opposite directions, so that the same distance is always maintained between the first substrate and the second substrate, avoiding abnormal display of the liquid crystal display screen caused by vibration.

[0036] Please also refer to Figure 1 and Figure 2 , the liquid crystal display screen structure provided by the embodiment of the present application includes a first substrate 10, a second substrate 20, and a liquid crystal layer 30. The first substrate 10 and the second substrate 20 are parallel and opposite to each other and are spaced apart, and the liquid crystal layer 30 is sandwiched between the first substrate 10 and the second substrate 20.

[0037] Specifically, the first substrate 10 and the second substrate 20 are thin plates made of glass, so that after the first substrate 10 and the second substrate 20 are adhesively bonded in parallel opposition, a regular three-dimensional structure is formed, facilitating the assembly of subsequent processes and forming a regular liquid crystal display screen. The surfaces of the first substrate 10 and the second substrate 20 have flatness, so that the spacing at each place is as equal as possible after the first substrate 10 and the second substrate 20 are adhesively bonded, in order to obtain higher display quality. In addition, a conductive thin film layer is sputtered on the opposite surfaces of the first substrate 10 and the second substrate 20, preferably an indium tin oxide semiconductor transparent conductive film. Thus, when a voltage is applied to the first substrate 10 and the second substrate 20, the alignment direction of liquid crystal molecules is changed through the conductive thin film layer, thereby realizing the display of different colors, brightness, and patterns.

[0038] The liquid crystal layer 30 is provided with a first connecting member 31, liquid crystal 32, and an anti-vibration assembly 33. The first connecting member 31 surrounds the edges of the first substrate 10 and the second substrate 20 and is used to connect the first substrate 10 and the second substrate 20. The liquid crystal 32 and the anti-vibration assembly 33 are independently distributed within the range surrounded by the first connecting member 31.

[0039] The first connecting member 31 is made of screen printing glue, preferably epoxy resin glue, which is environmentally friendly and inexpensive. Specifically, before connecting the first substrate 10 and the second substrate 20, the first connecting member 31 is first adhered to the first substrate 10 or the second substrate 20, and then the other substrate is adhered to the first connecting member 31 to realize the connection between the first substrate 10 and the second substrate 20. It should be noted that during the adhesion process, it is necessary to ensure that the first substrate 10 and the second substrate 20 are parallel and facing each other. The first connecting member 31 is in a linear shape, and its cross-section parallel to the plane of the first substrate 10 is circular or square; when the cross-section is circular, its diameter ranges from 1 to 2 mm, and when the cross-section is square, its width ranges from 1 to 2 mm. It can be understood that the first connecting member 31 can be selected with different lengths. When the first connecting member 31 is adhered to the first substrate 10 or the second substrate 20, multiple first connecting members 31 with the same or different lengths can be adhered along the edges of the first substrate 10 or the second substrate 20, or the first connecting member 31 can be an integrally connected closed one.

[0040] There are multiple liquid crystals 32, which are arranged in the liquid crystal layer 30. Preferably, on the plane where the first substrate 10 or the second substrate 20 is located, the liquid crystals 32 are evenly distributed in the liquid crystal layer 30.

[0041] The anti-vibration assembly 33 includes a second connecting member 331 and a support member 332.

[0042] In one embodiment, the second connecting member 331 and the support member 332 are independently arranged. Both ends of the second connecting member 331 are respectively connected to the first substrate 10 and the second substrate 20. Specifically, the second connecting member 331 is made of screen-printed glue, preferably epoxy resin glue, and the connection between the first substrate 10 and the second substrate 20 is realized through the second connecting member 331 made of screen-printed glue. When the first substrate 10 or the second substrate 20 moves in the opposite direction due to vibration, the bonding of the second connecting member 331 can limit the separation of the two from each other. The second connecting member 331 is spherical or linear. Since the second connecting member 331 is arranged in the display area, the size of the second connecting member 331 needs to be set relatively small so as not to affect the display. In this embodiment, when the second connecting member 331 is spherical, the selected diameter range of the second connecting member 331 is 0.1 - 0.2 mm; when the second connecting member 331 is linear, the cross-section perpendicular to the plane where the first substrate 10 is located is circular or square. When the cross-section of the second connecting member 331 is circular, its diameter range is 0.1 - 0.2 mm, and when the cross-section of the second connecting member 331 is square, its width range is 0.1 - 0.2 mm.

[0043] Both ends of the support member 332 are respectively in contact with the first substrate 10 and the second substrate 20. The support member 332 is made of a material with relatively high hardness so as to have good supporting force. When the first substrate 10 and the second substrate 20 move towards each other, the support of the support member 332 will prevent them from approaching each other. Preferably, the support member 332 is made of glass material. The main component of glass is silicon dioxide. The support member 332 made of silicon dioxide glass has the characteristics of high strength, stable chemical properties and corrosion resistance. The support member 332 is a sphere or a cube. When the support member 332 is a cube, it is necessary to ensure that it is a regular cube or cuboid, and the two opposite faces of the cubic support member 332 need to be in contact with the first substrate 10 and the second substrate 20 respectively. However, in the case of being vibrated, the cubic support member 332 may be inclined. At this time, the vertical angles of the cube are in contact with the first substrate 10 and the second substrate 20. Because the stress area at the vertical angles of the cube is small, it is easy to damage the first substrate 10 and the second substrate 20. Therefore, the support member 332 is preferably a glass sphere. At the same time, considering that the support member 332 is arranged in the display area, the size of the support member 332 needs to be set relatively small so as not to affect the display. The preferred diameter range is 0.004 - 0.009 mm. In addition, because the size of the support member 332 is small, even if it is arranged in the display area, it will not affect the display. Therefore, the glass ball can be selected in various colors such as transparent, white and black, and is not limited thereto. It can be understood that when the size of the support member 332 is small, it is relatively easy to adhere to the first substrate 10 and the second substrate 20. Therefore, after the support member 332 is fixed at a certain position of the liquid crystal layer 30, even if it is not connected to the first substrate 10 and the second substrate 20, its position is not easy to change due to vibration, so that the support member 332 can always maintain good supporting force.

[0044] Please refer to Figure 3, in order to further improve the stability of the support member 332 so that the position of the support member 332 remains unchanged when the first substrate 10 and the second substrate 20 are subjected to greater vibrations, in a further embodiment, a fixing layer 333 is coated on the outside of the support member 332, and the support member 332 is fixedly connected to the first substrate 10 or the second substrate 20 through the fixing layer 333. The material used for the fixing layer 333 melts when dried and heated, and solidifies when the temperature drops to room temperature. In the actual production process, first, the support member 332 coated with the fixing layer 333 is disposed on the first substrate 10 or the second substrate 20, and then it is dried with a dryer. At this time, the fixing layer 333 will melt into a liquid state, and the liquid fixing layer 333 combines with the first substrate 10 and the second substrate 20. After solidifying at room temperature, it is pasted on the first substrate 10 and the second substrate 20, and finally, a stable connection between the fixing layer 333 and the first substrate 10 or the second substrate 20 is achieved. With this setting, even when the vehicle is driving and subjected to huge vibrations, the support member 332 can be firmly fixed in a certain position and still play a good supporting role.

[0045] Since the first substrate 10 and the second substrate 20 have a certain area, especially for a large-area liquid crystal display screen, when the first substrate 10 and the second substrate 20 are only connected at the edge through the first connecting member 31, the interval between the first substrate 10 and the second substrate 20 in the area surrounded by the first connecting member 31, especially in the middle area, will change due to vibration, resulting in abnormal display. The liquid crystal display screen described in the present application can prevent the first substrate 10 and the second substrate 20 from moving in opposite directions by providing the second connecting member 331, so as to avoid the widening of the distance between the middle positions of the first substrate 10 and the second substrate 20. By providing the support member 332, the first substrate 10 and the second substrate 20 can be prevented from moving in opposite directions, so as to avoid the narrowing of the distance between the middle positions of the first substrate 10 and the second substrate 20, thereby ensuring that the distance between the first substrate 10 and the second substrate 20 remains unchanged and realizing the normal display of the liquid crystal display screen. The second connecting member 331, the support member 332 and the liquid crystal 32 can be independently distributed in the area surrounded by the first connecting member 31. Preferably, the second connecting member 331, the support member 332 and the liquid crystal 32 are evenly distributed on the plane where the first substrate 10 or the second substrate 20 is located. Thus, the forces in opposite directions and the forces in opposite directions received by the first substrate 10 and the second substrate 20 at each place are more uniform, so that the distances between the first substrate 10 and the second substrate 20 at each place are as equal as possible, thereby obtaining a more stable and clear display.

[0046] Please refer to Figure 4, in another embodiment, the liquid crystal layer 30 is provided with a vibration damping component 33'. The vibration damping component 33' includes a second connecting member 331' and a support member 332'. The second connecting member 331' is made of screen printing glue, preferably epoxy resin glue. The second connecting member 331' is coated on the outside of the support member 332' to form an integrated vibration damping component 33'. Both ends of the vibration damping component 33' are respectively connected to the first substrate 10 and the second substrate 20 through the second connecting member 331'. At this time, the vibration damping component 33' formed by the combination of the second connecting member 331' and the support member 332' can not only provide a tensile force in a relative direction for the first substrate 10 and the second substrate 20 to prevent the two substrates from moving in opposite directions, but also provide a supporting force in the opposite direction to prevent the two substrates from moving in opposite directions. Moreover, it is not necessary to coat a fixing layer 333 on the support member 332', but the support member 332' is directly fixed firmly in place by the viscosity of the second connecting member 331' to cope with the huge vibration generated during vehicle driving. It can be understood that in order to connect the vibration damping component 33' to the first substrate 10 and the second substrate 20, considering the influence on the display area and stability mentioned in the previous embodiment, in this embodiment, the support member 332' is preferably spherical, and its size still needs to be relatively small, and the diameter range is preferably 0.004 - 0.009 mm.

[0047] Furthermore, although the size of the liquid crystal is small, it still has a certain fluidity. The relative movement between the liquid crystals will cause abnormal liquid crystal arrangement, and further cause abnormal display of the liquid crystal display screen. Therefore, by using a liquid crystal with high viscosity, the fluidity of the liquid crystal can be reduced to reduce the abnormal liquid crystal arrangement during vibration and improve the vibration damping ability of the liquid crystal display screen. In this embodiment, the viscosity coefficient range of the liquid crystal 32 is preferably 73 - 129 mm 2 .s -1 . However, for a liquid crystal with a large viscosity coefficient, it will increase the difficulty of changing the liquid crystal direction arrangement and reduce the flexibility of the liquid crystal direction arrangement change, resulting in increased power consumption, slow response speed of the liquid crystal display screen and lag and other adverse phenomena. Therefore, most preferably, the viscosity coefficient of the liquid crystal 32 is 80 mm 2 .s -1 .

[0048] Furthermore, the liquid crystal display screens of the embodiments of the present application and the comparative example are respectively subjected to vibration tests. Among them, the difference between the liquid crystal display screen in the comparative example and the embodiment is only that the comparative example does not provide a vibration damping component. The test results show that when the vibration frequency is 30 - 500 Hz, the comparative example shows abnormal display under the vibration of 10 times the gravitational acceleration, such as double images, black shadows and other abnormal phenomena, while the embodiment shows normal display under the vibration of 10 times the gravitational acceleration. It can be seen that the vibration damping component 33 provided in the present application has good vibration damping ability.

[0049] Compared with the prior art, the beneficial effects of the technical solution of the present application are as follows:

[0050] (1) By providing a first connecting member to connect the first substrate and the second substrate, and then providing a vibration-proof component in the liquid crystal layer sandwiched between the first substrate and the second substrate, it is possible to prevent the first substrate and the second substrate from moving in opposite directions due to external forces, and also prevent them from moving in opposite directions, so that the same distance is always maintained between the first substrate and the second substrate, avoiding abnormal display of the liquid crystal display caused by vibration;

[0051] (2) By providing a second connecting member and a support member that are independent of the liquid crystal in the liquid crystal layer, and the second connecting member is simultaneously connected to the first substrate and the second substrate, and the support member abuts against the first substrate and the second substrate, so that the second connecting member and the support member are fixed to the liquid crystal layer independently of the liquid crystal, and the first substrate and the second substrate can be effectively prevented from moving without affecting the liquid crystal;

[0052] (3) Coating a fixing layer on the support member can increase the fixed connection between the support member and the first substrate or the second substrate. Even in the case of very large vibration intensity, the support member can still be well fixed in a certain position to maximize the supporting effect of the support member and prevent the first substrate and the second substrate from moving in opposite directions;

[0053] (4) Using a liquid crystal with high viscosity can reduce the fluidity of the liquid crystal, reduce the abnormal arrangement of the liquid crystal during vibration, and further improve the vibration-proof ability of the liquid crystal display;

[0054] (5) By designing the sizes and shapes of the first connecting member, the second connecting member and the support member, they can be connected or abutted against the first substrate or the second substrate for replacement conveniently without affecting normal display, so as to more effectively prevent the first substrate and the second substrate from moving.

[0055] The above-described embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and the present invention also intends to include these modifications and improvements.

Claims

1. A liquid crystal display screen structure, characterized in that: include: A first substrate, a second substrate and a liquid crystal layer; The first substrate and the second substrate are parallel to each other and spaced apart, and the liquid crystal layer is sandwiched between the first substrate and the second substrate; The liquid crystal layer is provided with a first connecting piece, liquid crystal and an anti-vibration component; the first connecting piece is surrounded by the edges of the first substrate and the second substrate, and is used to connect the first substrate and the second substrate; the liquid crystal and the anti-vibration component are independently distributed within the range surrounded by the first connecting piece.

2. The liquid crystal display structure according to claim 1, characterized in that: The anti-vibration assembly comprises a second connecting member and a supporting member, wherein the second connecting member and the supporting member are independently arranged; Two ends of the second connecting member are respectively connected to the first substrate and the second substrate, and two ends of the supporting member are respectively abutted against the first substrate and the second substrate.

3. The liquid crystal display structure according to claim 2, characterized in that: The support member is coated with a fixing layer on the outside, and the support member is fixedly connected to the first substrate or the second substrate through the fixing layer.

4. The liquid crystal display structure according to claim 1, characterized in that: The anti-vibration assembly comprises a second connecting member and a supporting member, wherein the second connecting member is covered on the supporting member; Two ends of the anti-vibration component are respectively fixedly connected to the first substrate and the second substrate through the second connecting member.

5. The liquid crystal display structure according to claim 3 or 4, characterized in that: The viscosity coefficient of the liquid crystal is in the range of 73 to 129 mm 2 .s -1 .

6. The liquid crystal display structure according to claim 5, characterized in that: The support member is a sphere or a cube and is made of glass material.

7. The liquid crystal display structure according to claim 6, characterized in that: The support member is a glass sphere with a diameter ranging from 0.004 to 0.009 mm.

8. The liquid crystal display structure according to claim 7, characterized in that: The second connecting member is spherical, and its diameter ranges from 0.1 to 0.2 mm.

9. The liquid crystal display structure according to claim 3, characterized in that: The second connecting member is linear, and its cross section parallel to the plane where the first substrate is located is circular or square; when the cross section is circular, its diameter ranges from 0.1 to 0.2 mm, and when the cross section is square, its width ranges from 0.1 to 0.2 mm.

10. The liquid crystal display structure according to claim 8, characterized in that: The first connecting member is linear, and its cross section perpendicular to the plane where the first substrate is located is circular or square; when the cross section is circular, its diameter ranges from 1 to 2 mm, and when the cross section is square, its width ranges from 1 to 2 mm.

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