Anti-vibration liquid crystal display module

Abstract

The utility model discloses an anti-vibration liquid crystal display module which comprises a small polaroid, a small piece of glass, a large piece of glass, a large polaroid and a cover plate which are sequentially arranged in an overlapped mode from bottom to top, and the large piece of glass is longer than the small piece of glass and extends outwards to form a step. A driving IC and an FPC are bound on the lower surface of the large piece of glass located at the step, the large polaroid located at the binding position of the driving IC and the FPC extends to the edge of the large piece of glass, a clearance part is arranged on the large polaroid, and the clearance part avoids the binding position of the driving IC and the FPC. The large polaroid and the large glass are fully attached to the cover plate through OCA optical cement. According to the invention, the attaching area of the TFT is increased, the situation that a large piece of glass is suspended is avoided, and the TFT can be better protected when a vibration test is carried out, so that the anti-vibration effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a vibration-resistant liquid crystal display module. Background Art

[0002] With the development of technology and the popularity of electric vehicles, in-car LCD display modules are becoming more and more common. As the global sales of cars continue to rise, cars are facing more and more extreme environments, so the reliability requirements for in-car LCD display modules are getting higher and higher. Especially for motorcycles and cars, the vibration resistance requirements of the display screen are getting higher and higher.

[0003] Traditional LCD display module bonding generally involves bonding the touch screen to a small piece of TFT glass. Generally, TFT glass consists of two pieces of glass, one side is a small piece of glass, namely CF glass, which is printed with RGB colors, and the other side is a large piece of glass, namely TFT switch glass, which controls whether the liquid crystal rotates through voltage to transmit light. Generally, when bonding, the small piece of glass is on top and the large piece of glass is on the bottom. The large piece of glass is generally longer than the small piece of glass because it needs to be bound to the IC and FPC. The traditional bonding method will leave the large piece of glass suspended in the air, which will cause shaking during vibration testing. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to prevent a large piece of glass from being suspended in the air and shaking during a vibration test.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0006] In order to solve the above technical problems, the utility model provides a vibration-resistant liquid crystal display module, which includes a small polarizer, a small glass, a large glass, a large polarizer and a cover plate which are stacked in sequence from bottom to top, the large glass is longer than the small glass and extends outward to form a step, the lower surface of the large glass located at the step is bound with a driver IC and an FPC, the large polarizer located at the binding position of the driver IC and the FPC extends to the edge of the large glass, the large polarizer is provided with a space avoidance portion, the space avoidance portion avoids the binding position of the driver IC and the FPC, and the large polarizer and the large glass are fully bonded to the cover plate through OCA optical glue.

[0007] As a preferred embodiment of the vibration-resistant liquid crystal display module provided by the utility model, the FPC includes a substrate layer, a circuit layer arranged on the upper surface of the substrate layer, and a metal heat dissipation layer arranged on the lower surface of the substrate layer.

[0008] As a preferred embodiment of the vibration-resistant liquid crystal display module provided by the utility model, the FPC also includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and the inner wall of the through-hole is provided with a thermal conductive layer in contact with the circuit layer and the metal heat dissipation layer.

[0009] As a preferred embodiment of the vibration-resistant liquid crystal display module provided by the utility model, a heat conductor connected to an external heat-conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat-conducting layer.

[0010] As a preferred implementation of the vibration-resistant liquid crystal display module provided by the utility model, the structure of the metal heat dissipation layer is a mesh structure, a strip structure, a wavy structure or a honeycomb structure.

[0011] As a preferred embodiment of the vibration-resistant liquid crystal display module provided by the utility model, a plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves.

[0012] As a preferred implementation of the vibration-resistant liquid crystal display module provided by the utility model, the shape of the groove is square or circular.

[0013] As a preferred implementation of the vibration-resistant liquid crystal display module provided by the utility model, the groove is a closing groove which is narrow outside and wide inside.

[0014] As a preferred implementation of the vibration-resistant liquid crystal display module provided by the utility model, the cross-sectional shape of the groove is an isosceles trapezoid.

[0015] As a preferred implementation of the vibration-resistant liquid crystal display module provided by the utility model, the groove is in the shape of a long strip.

[0016] The utility model has the following beneficial effects:

[0017] The large polarizer of the large glass is extended to the edge of the large glass, avoiding the binding position of the driver IC and FPC, and then the cover plate is fully bonded with the large glass and large polarizer of the TFT, which increases the bonding area of ​​the TFT and prevents the large glass from being suspended in the air. When doing vibration testing, the TFT can be better protected, thus achieving an anti-vibration effect. Since the TFT is very thin, even if the upper and lower glass of the TFT are reversed, it will basically not affect the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 The present invention is a schematic structural diagram of a vibration-resistant liquid crystal display module.

[0020] Figure 2 This is a schematic diagram of the structure of Example 2.

[0021] Figure 3 This is a schematic diagram of the structure of Example 3.

[0022] Figure 4 for Figure 3 Schematic diagram of the decomposition structure.

[0023] Figure 5 for Figure 3 Schematic diagram of the improved structure.

[0024] Description of Figure Numbers:

[0025] Small polarizer 1; small glass 2; large glass 3; large polarizer 4; cover 5; driver IC 6; FPC 7;

[0026] Base material layer 71; circuit layer 72; metal heat dissipation layer 73; through hole 74;

[0027] Plastic layer 8; groove 51. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] The utility model provides a vibration-resistant liquid crystal display module, which comprises a small polarizer, a small glass, a large glass, a large polarizer and a cover plate which are sequentially stacked from bottom to top, wherein the large glass is longer than the small glass and extends outward to form a step, a driving IC and an FPC are bound to the lower surface of the large glass at the step, the large polarizer located at the binding position of the driving IC and the FPC extends to the edge of the large glass, a space avoidance portion is arranged on the large polarizer, the space avoidance portion avoids the binding position of the driving IC and the FPC, and the large polarizer and the large glass are fully bonded to the cover plate through OCA optical glue.

[0032] The large polarizer of the large glass is extended to the edge of the large glass, avoiding the binding position of the driver IC and FPC, and then the cover plate is fully bonded with the large glass and large polarizer of the TFT, which increases the bonding area of ​​the TFT and prevents the large glass from being suspended in the air. When doing vibration testing, the TFT can be better protected, thus achieving an anti-vibration effect. Since the TFT is very thin, even if the upper and lower glass of the TFT are reversed, it will basically not affect the display effect.

[0033] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.

[0034] Example 1

[0035] See also Figure 1 , which is a vibration-resistant liquid crystal display module provided by the utility model, comprising a small polarizer 1, a small glass 2, a large glass 3, a large polarizer 4 and a cover plate 5 which are sequentially stacked from bottom to top, the large glass 3 is longer than the small glass 2 and extends outward to form a step, the lower surface of the large glass 3 located at the step is bound with a driver IC 6 and an FPC 7, the large polarizer 4 located at the binding position of the driver IC 6 and the FPC 7 extends to the edge of the large glass 3, a space avoidance portion is provided on the large polarizer 4, the space avoidance portion avoids the binding position of the driver IC 6 and the FPC 7, and the large polarizer 4 and the large glass 3 are fully bonded to the cover plate 5 through OCA optical glue. The large polarizer 4 of the large glass 3 is extended to the edge of the large glass 3 and avoids the binding position of the driver IC 6 and the FPC 7. Then the cover plate 5 is fully bonded with the large glass 3 and the large polarizer 4 of the TFT, which increases the bonding area of ​​the TFT and prevents the large glass 3 from being suspended in the air. When doing vibration testing, the TFT can be better protected, thereby achieving an anti-vibration effect. Since the TFT is very thin, even if the upper and lower glasses of the TFT are reversed, it will basically not affect the display effect.

[0036] Example 2

[0037] See also Figure 2 As a further optimization scheme of Example 1, in this embodiment, the FPC7 includes a substrate layer 71, a circuit layer 72 arranged on the upper surface of the substrate layer 71, and a metal heat dissipation layer 73 arranged on the lower surface of the substrate layer 71. The arrangement method can be that the circuit layer 72 and the metal heat dissipation layer 73 are respectively attached to the substrate layer 71 by double-sided adhesive. Since the thickness of the substrate layer 71 is relatively thin, the heat on the FPC7 can be diffused to the metal heat dissipation layer 73 through the substrate layer 71. The metal heat dissipation layer 73 can effectively increase the heat dissipation area of ​​the FPC7 and play a role in uniform heat dissipation, thereby improving the heat dissipation efficiency of the FPC7. The substrate layer 71 can be any one of polyimide, polyester, polysulfone or polytetrafluoroethylene, the double-sided adhesive is any one of an acrylic adhesive layer or an epoxy resin adhesive layer, and the metal heat dissipation layer 73 can be a copper foil layer.

[0038] Furthermore, the FPC 7 further includes at least one through-hole 74 penetrating the substrate layer 71, the circuit layer 72 and the metal heat dissipation layer 73, and the inner wall of the through-hole 74 is provided with a heat-conducting layer in contact with the circuit layer 72 and the metal heat dissipation layer 73. By utilizing the good thermal conductivity of the through-hole 74, the circuit layer 72 and the metal heat dissipation layer 73 on both sides of the substrate layer 71 can be electrically connected, and a good thermal conductivity function can be exerted, and the thermal conductive layer can provide a thermal conductive function to achieve a good heat dissipation effect. Among them, the thermal conductive layer can be a copper glue conductive ink layer.

[0039] Furthermore, a heat conductor connected to an external heat-conducting structure is disposed in the through hole 74, and the heat conductor is connected to the external heat-conducting structure from one side of the circuit layer 72, and is also in contact with the heat-conducting layer in the through hole 74, so that the circuit layer 72 and the metal heat dissipation layer 73 can be connected to the external heat-conducting structure through the through hole 74, so that the heat in the FPC 7 is diffused to the external heat-conducting structure through the heat conductor in the through hole 74, so as to further improve the heat dissipation efficiency of the FPC 7. Preferably, in order to enable the through hole 74 to be connected to the external heat-conducting structure, the through hole 74 is disposed at the edge of the FPC 7.

[0040] Furthermore, the metal heat dissipation layer 73 is a uniform heat dissipation structure, and its structure can be any one of a mesh structure, a strip structure, a wavy structure or a honeycomb structure. Through this uniform heat dissipation structure, the heat dissipation effect can be better improved.

[0041] Example 3

[0042] See also Figures 3 to 5As a further optimization scheme of Example 1, in this embodiment, the upper surface of the cover plate 5 is covered with a plastic layer 8, and a plurality of grooves 51 are formed downward on the upper surface of the cover plate 5 by etching, and a portion of the lower surface of the plastic layer 8 is embedded in each groove 51. Since the surface of the groove 51 formed by etching has a certain degree of roughness, the plastic layer 8 can be tightly bonded to the groove 51 to prevent the cover plate 5 and the plastic layer 8 from falling off. Since the upper part of the cover plate 5 is covered with a plastic layer 8, and a plurality of grooves 51 are formed on the upper surface of the cover plate 5 by etching, and the plastic layer 8 can be embedded in the interior of the plurality of grooves 51, the grooves 51 formed by etching make the inner surface of the grooves 51 have a certain degree of roughness, and the surface of the grooves 51 with a certain degree of roughness can improve the bonding force between the grooves 51 and the plastic layer 8, thereby reducing the possibility of separation of the grooves 51 and the plastic layer 8. When the LCD screen is hit or falls, the plastic layer 8 on the upper surface of the cover plate 5 can directly withstand the external force, thereby preventing the external force from directly acting on the cover plate 5. Since the plastic layer 8 can absorb most of the energy, the remaining external force is very weak when it acts on the cover plate 5, thereby effectively reducing the risk of the cover plate 5 being broken or damaged; and when the LCD screen is subjected to external force, even if the external force is large, it will only damage the plastic layer 8 on the upper surface of the cover plate 5, and will not directly damage the cover plate 5, thereby preventing the cover plate 5 from being damaged and causing the LCD screen to be unable to be used normally, thereby bringing a better user experience to users and improving the anti-fall ability of the LCD screen.

[0043] Furthermore, the shape of the groove 51 can be square or circular, and the cross-sectional shape of the groove 51 can be a closing groove that is narrow on the outside and wide on the inside. In the present embodiment, the cross-sectional shape of the groove 51 is an isosceles trapezoid, and the groove 51 is in the shape of an elongated strip. The isosceles trapezoid-shaped groove 51 can allow the plastic layer 8 to be tightly embedded in the groove 51, thereby preventing the groove 51 from separating from the plastic layer 8, thereby preventing the cover plate 5 from falling off from the plastic layer 8. The elongated groove 51 can increase the fitting portion between the plastic layer 8 and the groove 51, thereby increasing the fitting strength between the groove 51 and the plastic layer 8.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A vibration-resistant liquid crystal display module, characterized in that: It includes a small polarizer, a small glass, a large glass, a large polarizer and a cover plate which are stacked in sequence from bottom to top. The large glass is longer than the small glass and extends outward to form a step. The lower surface of the large glass located at the step is bound with a driver IC and an FPC. The large polarizer located at the binding position of the driver IC and the FPC extends to the edge of the large glass. A gap is provided on the large polarizer, and the gap avoids the binding position of the driver IC and the FPC. The large polarizer and the large glass are fully bonded to the cover plate through OCA optical glue.

2. The anti-vibration liquid crystal display module according to claim 1, characterized in that: The FPC includes a substrate layer, a circuit layer disposed on an upper surface of the substrate layer, and a metal heat dissipation layer disposed on a lower surface of the substrate layer.

3. The anti-vibration liquid crystal display module according to claim 2, characterized in that: The FPC further includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and an inner wall of the through-hole is provided with a heat-conducting layer in contact with the circuit layer and the metal heat dissipation layer.

4. The anti-vibration liquid crystal display module according to claim 3, characterized in that: A heat conductor connected to an external heat-conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat-conducting layer.

5. The anti-vibration liquid crystal display module according to claim 2, characterized in that: The structure of the metal heat dissipation layer is a mesh structure, a strip structure, a wave structure or a honeycomb structure.

6. The anti-vibration liquid crystal display module according to claim 1, characterized in that: A plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves.

7. The anti-vibration liquid crystal display module according to claim 6, characterized in that: The shape of the groove is square or circular.

8. The anti-vibration liquid crystal display module according to claim 6, characterized in that: The groove is a closing groove which is narrow outside and wide inside.

9. The anti-vibration liquid crystal display module according to claim 8, characterized in that: The cross-sectional shape of the groove is an isosceles trapezoid.

10. The anti-vibration liquid crystal display module according to claim 6, characterized in that: The groove is in the shape of an elongated strip.

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