CN216927956U

CN216927956U - Liquid crystal display screen

Info

Publication number: CN216927956U
Application number: CN202220432332.7U
Authority: CN
Inventors: 章小和; 樊劼; 李山萌; 刘雪白
Original assignee: Xinli Photoelectric Renshou Co Ltd
Current assignee: Xinli Photoelectric Renshou Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-07-08
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a liquid crystal display screen which comprises a lower polaroid, a lower piece of glass, an upper piece of glass and an upper polaroid, wherein the lower piece of glass, the upper piece of glass and the upper polaroid are sequentially overlapped from bottom to top, the lower piece of glass is longer than the upper piece of glass to form a step, a drive IC is fixed on the step, the drive IC is in a quadrangular frustum shape, an FPC (flexible printed circuit) is bound on the drive IC, the upper surface of the lower piece of glass at the step is coated with a protective adhesive, and the side face of the drive IC and the step are completely covered by the protective adhesive. Make drive IC's the coverage area that has increased the protection effectively all around and glued to this effectively prevents that steam or salt fog from permeating drive IC and the position of binding between the lower glass, and then avoids drive IC to appear the bad condition such as the condition of short circuit heavy current or the condition of opening circuit and leads to liquid crystal display to show unusually, thereby reduce the defective rate of product, the manufacturing cost of product reduces, makes the product have abundant competitiveness, in order to satisfy enterprise's ever-increasing quality requirement.

Description

Liquid crystal display screen

Technical Field

The utility model relates to the technical field of liquid crystal display, in particular to a liquid crystal display screen.

Background

Liquid crystal display's lower piece glass is binding driver IC and FPC after, one deck protection glue is generally scribbled to the top that can be under piece glass, walk the line through the metal that protection glue protected on the lower piece glass, in order to avoid metal to walk the line to rust, the short circuit, it is bad such as corruption, traditional structure appears the gap easily between protection glue and driver IC, the client complete machine is when doing reliability test, if high temperature and high humidity, salt fog test etc. steam or salt fog can permeate driver IC and the lower piece glass between the region of binding through the gap between protection glue and driver IC, lead to driver IC to appear short circuit heavy current or open circuit etc. bad to lead to showing unusually, and then make the product defective rate improve, the manufacturing cost of product rises, make the product lack competitiveness.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of how to avoid the abnormity of the drive IC, because the drive IC is in a quadrangular frustum pyramid shape, the upper surface of the lower glass positioned at the step is coated with protective glue, and the protective glue completely covers the side surface of the drive IC and the step, the covering area of the protective glue covering the drive IC can be effectively increased around the drive IC, so that the risk of gaps at the periphery of the drive IC is avoided, water vapor or salt mist is effectively prevented from permeating into the binding position between the drive IC and the lower glass, the abnormal display of a liquid crystal display screen caused by the bad conditions of short-circuit large current or open circuit of the drive IC is avoided, the reject ratio of the product is reduced, the manufacturing cost of the product is reduced, the product has sufficient competitiveness, and the increasing quality requirements of production enterprises are met.

The technical problem to be solved by the utility model is realized by the following technical scheme:

in order to solve the technical problem, the utility model provides a liquid crystal display screen which comprises a lower polaroid, a lower piece of glass, an upper piece of glass and an upper polaroid, wherein the lower polaroid, the lower piece of glass, the upper piece of glass and the upper polaroid are sequentially overlapped from bottom to top, the lower piece of glass is longer than the upper piece of glass to form a step, a drive IC is fixed on the step, the drive IC is in a quadrangular frustum shape, an FPC (flexible printed circuit) is bound on the drive IC, and the upper surface of the lower piece of glass at the step is coated with a protective adhesive which completely covers the side surface of the drive IC and the step.

As a preferred embodiment of the liquid crystal display panel provided by the present invention, a corner of the driving IC is provided with a chamfer.

As a preferable embodiment of the liquid crystal display panel provided by the present invention, the chamfer is a right angle.

As a preferred embodiment of the liquid crystal display panel provided by the present invention, the chamfer is a rounded corner.

As a preferred embodiment of the liquid crystal display screen provided by the utility model, the liquid crystal display screen further comprises a rubber frame, the rubber frame comprises a bottom plate arranged below the lower polarizer and a side wall extending upwards from the edge of the bottom plate, a buckle is formed at the top of the side wall, and the buckle buckles the step.

As a preferred embodiment of the liquid crystal display screen provided by the present invention, a spacer is further disposed between the bottom plate and the lower polarizer.

As a preferred embodiment of the liquid crystal display panel provided by the present invention, the upper surface of the spacer is coated with a weak viscosity glue layer, and the lower surface of the spacer is coated with a strong viscosity glue layer.

As a preferred embodiment of the liquid crystal display screen provided by the present invention, the lower surface of the gasket is further provided with a PET substrate layer, and the high-viscosity glue layer is provided on the lower surface of the PET substrate layer.

As a preferred embodiment of the liquid crystal display screen provided by the present invention, an initial adhesion ratio of the strong-viscosity glue layer to the weak-viscosity glue layer is 2:1 to 50: 1.

As a preferred embodiment of the liquid crystal display screen provided by the present invention, the low-viscosity glue layer and the high-viscosity glue layer have the same glue viscosity, the glue coating shape of the low-viscosity glue layer is a grid shape, and the glue coating shape of the high-viscosity glue layer is a complete coating.

The utility model has the following beneficial effects:

because driver IC's shape is the quadrangular frustum pyramid form, and the upper surface coating that is located the lower glass of step department has the protection to glue, and the protection is glued and is covered completely driver IC's side with the step for driver IC's can increase effectively all around and glue the coverage area who covers driver IC, thereby avoid driver IC's the risk that has the gap all around, prevent steam or salt fog infiltration driver IC and the position of binding between the lower glass effectively with this, and then avoid driver IC to appear bad conditions such as the condition of short circuit heavy current or the condition of opening circuit and lead to liquid crystal display to show unusually, thereby reduce the defective rate of product, with this manufacturing cost who reduces the product, make the product have abundant competitiveness, in order to satisfy the growing quality requirement of manufacturing enterprise.

Drawings

In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic structural diagram of a liquid crystal display provided by the present invention.

Fig. 2 is a schematic top view of the protection adhesive hidden in fig. 1.

Fig. 3 is a schematic structural diagram of a first modification of embodiment 2.

Fig. 4 is a schematic structural diagram of a second modification of embodiment 2.

Fig. 5 is a schematic structural view of embodiment 3.

Fig. 6 is a schematic diagram of a modified structure of fig. 5.

Fig. 7 is a schematic view of an improved structure of the gasket.

Fig. 8 is a schematic view of another modified structure of the gasket.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a liquid crystal display screen which comprises a lower polarizer 1, a lower piece of glass 2, an upper piece of glass 3 and an upper polarizer 4 which are sequentially overlapped from bottom to top, wherein the lower piece of glass 2 is longer than the upper piece of glass 3 to form a step, a drive IC5 is fixed on the step, the drive IC5 is in a quadrangular frustum shape, an FPC6 is bound on the drive IC5, a protective adhesive 21 is coated on the upper surface of the lower piece of glass 2 at the step, and the protective adhesive 21 completely covers the side surface of the drive IC5 and the step.

Because the shape of the drive IC5 is quadrangular frustum pyramid, the upper surface of the lower glass 2 positioned at the step is coated with the protective adhesive 21, the protective adhesive 21 completely covers the side surface of the drive IC5 and the step, so that the coverage area of the protective adhesive 21 covering the drive IC5 can be effectively increased around the drive IC5, the risk of gaps around the drive IC5 is avoided, the moisture or salt mist is effectively prevented from permeating into the binding position between the drive IC5 and the lower glass 2, the abnormal display of the liquid crystal display screen caused by the poor conditions such as the short-circuit and large-current condition or the open circuit condition of the drive IC5 is avoided, the reject ratio of the product is reduced, the manufacturing cost of the product is reduced, and the product has sufficient competitiveness to meet the increasing quality requirements of production enterprises.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The utility model is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Example 1

Referring to fig. 1 and 2, a liquid crystal display screen provided by the present invention includes a lower polarizer 1, a lower glass 2, an upper glass 3, and an upper polarizer 4 sequentially stacked from bottom to top, where the lower glass 2 is longer than the upper glass 3 to form a step, a driver IC5 is fixed on the step, the driver IC5 is in a quadrangular frustum shape, an FPC6 is bound on the driver IC5, the upper surface of the lower glass 2 at the step is coated with a protective adhesive 21, and the protective adhesive 21 completely covers the side surface of the driver IC5 and the step. Because the shape of the drive IC5 is quadrangular frustum pyramid, the upper surface of the lower glass 2 positioned at the step is coated with the protective adhesive 21, the protective adhesive 21 completely covers the side surface of the drive IC5 and the step, so that the coverage area of the protective adhesive 21 covering the drive IC5 can be effectively increased around the drive IC5, the risk of gaps around the drive IC5 is avoided, the moisture or salt mist is effectively prevented from permeating into the binding position between the drive IC5 and the lower glass 2, the abnormal display of the liquid crystal display screen caused by the poor conditions such as the short-circuit and large-current condition or the open circuit condition of the drive IC5 is avoided, the reject ratio of the product is reduced, the manufacturing cost of the product is reduced, and the product has sufficient competitiveness to meet the increasing quality requirements of production enterprises.

Example 2

Referring to fig. 3 and 4, as a further optimized solution of embodiment 1, in this embodiment, corners of the driving IC5 are provided with chamfers. The coverage area of the protective glue 21 is further increased, and the phenomenon that the drive IC5 has poor conditions such as short-circuit and large current or open circuit and the like to cause abnormal display of the liquid crystal display screen is avoided, so that the reject ratio of products is reduced, the manufacturing cost of the products is reduced, and the products have sufficient competitiveness to meet the increasing quality requirements of production enterprises.

As a preferable embodiment of the liquid crystal display panel provided by the present invention, the chamfer is a right angle. The coverage area of the protective glue 21 is further increased, and the phenomenon that the drive IC5 has poor conditions such as short-circuit and large current or open circuit and the like to cause abnormal display of the liquid crystal display screen is avoided, so that the reject ratio of products is reduced, the manufacturing cost of the products is reduced, and the products have sufficient competitiveness to meet the increasing quality requirements of production enterprises.

As a preferred embodiment of the liquid crystal display panel provided by the present invention, the chamfer is a rounded corner. The coverage area of the protective glue 21 is further increased, and the phenomenon that the drive IC5 has poor conditions such as short-circuit and large current or open circuit and the like to cause abnormal display of the liquid crystal display screen is avoided, so that the reject ratio of products is reduced, the manufacturing cost of the products is reduced, and the products have sufficient competitiveness to meet the increasing quality requirements of production enterprises.

Example 3

Referring to fig. 5, as a further optimization scheme of the embodiment 1, in this embodiment, the polarizer further includes a rubber frame 7, the rubber frame 7 includes a bottom plate 71 disposed below the lower polarizer 1 and a side wall 72 extending upward from an edge of the bottom plate 71, a buckle 73 is formed at a top of the side wall 72, and the buckle 73 buckles the step. The embodiment adopts four buckles 73 which are symmetrical with each other in pairs at the left and the right, but the utility model is not limited thereto, and in other embodiments, only two buckles 73 can be adopted, but the stability is inferior to that of the four buckles 73 of the embodiment. The lower glass 2 comprises a circuit area and a non-circuit area, and the position buckled by the buckle 73 in the embodiment is preferably the non-circuit area so as to prevent influencing the circuit of the lower glass 2. The liquid crystal display screen provided by the utility model has the advantages of simple structure, mature process and low cost, can firmly fix the module on the rubber frame 7, can be assembled by pressing down the module, is not time-consuming and labor-saving, has high assembly efficiency, and can effectively improve the production efficiency.

Referring to fig. 6, as a preferred embodiment of the liquid crystal display provided by the present invention, a spacer 8 is further disposed between the bottom plate 71 and the lower polarizer 1, and a thickness δ of the spacer 8 is greater than or equal to 0.3mm, so as to ensure that the module has a buffering effect, and at the same time, the spacer 8 has a sufficient thickness to be elastically deformed, and an elastic force generated by the elastic deformation can apply a certain pressure to the module, so as to ensure that the module can be more firmly clamped by the buckle 73, and when the thickness δ of the spacer 8 is too small, the elastic force is small, and cannot generate sufficient pressure to the module, and the module is easy to fall off.

Referring to fig. 6 and 7, as a preferred embodiment of the liquid crystal display panel provided by the present invention, a weak-viscosity glue layer 81 is coated on an upper surface of the spacer 8, and a strong-viscosity glue layer 82 is coated on a lower surface of the spacer 8. The low-viscosity glue layer 81 is attached to the lower polarizer 1, so that the phenomenon that the lower polarizer 1 is dragged due to overlarge viscosity is avoided, wrinkles are avoided, the high-viscosity glue layer 82 is attached to the bottom plate 71, the attaching strength can be higher, and falling off is avoided.

Referring to fig. 6 and 8, as a preferred embodiment of the liquid crystal display panel provided by the present invention, a PET substrate layer 83 is further disposed on a lower surface of the gasket 8, and the high-viscosity glue layer 82 is disposed on a lower surface of the PET substrate layer 83, so that the PET substrate layer 83 is disposed for identification, and thus a foolproof effect can be achieved.

As a preferred embodiment of the liquid crystal display screen provided by the present invention, the initial adhesion ratio of the high-viscosity glue layer 82 to the low-viscosity glue layer 81 is 2:1 to 50:1, which prevents the lower polarizer 1 from being pulled due to the excessively high viscosity of the upper surface of the spacer 8 by controlling the viscosity of the glue layer, and simultaneously ensures the viscosity of the lower surface of the spacer 8 to improve the bonding strength of the bottom plate 71, so as to prevent the module and the bottom plate 71 from falling off. In a preferred embodiment of the liquid crystal display panel according to the present invention, the weak viscosity glue layer 81 and the strong viscosity glue layer 82 have the same glue viscosity, the glue coating shape of the weak viscosity glue layer 81 is a grid shape, and the glue coating shape of the strong viscosity glue layer 82 is a full coating shape. Because the glue viscosity of the weak-viscosity glue layer 81 is the same as that of the strong-viscosity glue layer 82, the purchase quantity is increased, the cost is reduced, and meanwhile, the glue cannot be mixed in the gluing process, so that the production efficiency is improved; the coating shape of the weak-viscosity glue layer 81 is a grid shape, which is equivalent to reducing the glue area of the weak-viscosity glue layer 81, so that the viscosity of the weak-viscosity glue layer 81 is reduced, and the strong-viscosity glue layer 82 is a glue coating shape and is completely coated, so that the viscosity of the strong-viscosity glue layer 82 is improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the utility model and do not limit the scope of the utility model. This application is capable of embodiments in many different forms and the embodiments are provided so that this disclosure will be thorough and complete. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. The utility model provides a liquid crystal display, its characterized in that, it includes by lower polaroid, lower glass, last glass and the last polaroid that the stack set up in proper order from bottom to top, lower glass is good at last glass and be formed with the step, be fixed with driver IC on the step, driver IC's shape is four arriss platform forms, driver IC binds FPC on, is located step department lower glass's upper surface coating has the protection to glue, the protection is glued and is covered completely driver IC's side with the step.

2. The liquid crystal display panel according to claim 1, wherein corners of the driving IC are provided with chamfers.

3. The liquid crystal display panel of claim 2, wherein the chamfer is a right angle.

4. The liquid crystal display panel of claim 2, wherein the chamfer is a rounded corner.

5. The liquid crystal display screen of claim 1, further comprising a plastic frame, wherein the plastic frame comprises a bottom plate disposed below the lower polarizer and a sidewall extending upward from an edge of the bottom plate, and a buckle is formed at a top of the sidewall and buckles the step.

6. The liquid crystal display panel according to claim 5, wherein a spacer is further disposed between the bottom plate and the lower polarizer.

7. The liquid crystal display panel according to claim 6, wherein the upper surface of the spacer is coated with a weak viscosity glue layer, and the lower surface of the spacer is coated with a strong viscosity glue layer.

8. The liquid crystal display screen according to claim 7, wherein the lower surface of the gasket is further provided with a PET substrate layer, and the high-viscosity glue layer is arranged on the lower surface of the PET substrate layer.

9. The liquid crystal display panel of claim 7, wherein the initial adhesion ratio of the strong-viscosity glue layer to the weak-viscosity glue layer is 2:1 to 50: 1.

10. The liquid crystal display panel according to claim 7, wherein the weak viscosity glue layer has the same glue viscosity as the strong viscosity glue layer, the glue coating shape of the weak viscosity glue layer is a grid, and the strong viscosity glue layer is a glue coating shape that is a full coating.