Cover plate structure, liquid crystal display module and mobile equipment

Abstract

The utility model discloses a cover plate structure, liquid crystal display module and mobile equipment relates to display module technical field, cover plate structure includes cover plate and color change label, color change can be produced in the color change label under light irradiation, wherein the color change label is connected to the cover plate and exposes the outer edge of cover plate, or cover plate structure also includes cover plate protective film, the cover plate protective film is connected with the cover plate protective film. The cover plate protection film is located on the inner side and / or the outer side of the cover plate, and the color-changing label is connected to the cover plate protection film. According to the scheme, the color-changing label is arranged on the cover plate, when the cover plate and the liquid crystal display panel are installed, the color-changing label irradiated by ultraviolet rays changes in color, and the color-changing label which is not irradiated is still in the primary color, so that an operator can sort finished liquid crystal display modules according to the change of the color-changing label when sorting the finished liquid crystal display modules; whether the cover plate and the liquid crystal display panel are cured through ultraviolet irradiation during bonding is judged, and the quality of the liquid crystal display module is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, and particularly relates to a cover plate structure, a liquid crystal display module and a mobile device. Background Art

[0002] Optical glue is a special adhesive for bonding transparent optical components. It has the characteristics of colorless transparency, high light transmittance, good bonding strength, etc. In the production of display screens such as mobile phones and tablets, the optical glue is cured by ultraviolet irradiation to bond the cover plate and the liquid crystal display panel to form a liquid crystal display module.

[0003] In the production and shipment of modules, a quality abnormality phenomenon will occur: some products are not cured by ultraviolet irradiation. Since module products are stacked by various flat components, although the viscosity of the optical glue without ultraviolet irradiation curing is sufficient to maintain the bonding of the products during production. However, after shipping to the whole machine factory, during the process of assembling the casing or even the whole machine, the warpage degree of components such as the casing is relatively large. The viscosity of the uncured optical glue is insufficient, and separation will occur. Since there are no obvious appearance and quality differences before and after the ultraviolet curing of the module, it is very difficult for the operator to distinguish the module that has not been cured by ultraviolet irradiation, which easily leads to these semi-finished products flowing directly to the subsequent processes, resulting in potential product quality hazards. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a cover plate structure, a liquid crystal display module and a mobile device, aiming to facilitate the inspection of whether the cover plate and the liquid crystal display panel have been cured by ultraviolet irradiation and ensure product quality.

[0005] To achieve the above purpose, the cover plate structure proposed by the utility model includes a cover plate and a color-changing label, and the color-changing label can generate a color change under light irradiation, wherein

[0006] the color-changing label is connected to the cover plate and exposed at the outer edge of the cover plate, or

[0007] the cover plate structure further includes a cover plate protective film, the cover plate protective film is located inside and / or outside the cover plate, and the color-changing label is connected to the cover plate protective film.

[0008] In an embodiment, the cover plate structure includes the cover plate protective film, and the cover plate protective film is located inside or outside the cover plate.

[0009] In an embodiment, the outer edge of the cover plate protective film extends to form a tearing part, and the color-changing label is connected to the tearing part.

[0010] In an embodiment, the cover plate, the cover plate protective film and the color-changing label are sequentially stacked, or

[0011] The cover plate, the color-changing label, and the cover plate protective film are sequentially stacked.

[0012] In one embodiment, the color-changing label is disposed at one end in the length direction of the cover plate protective film, and / or the color-changing label is located on the right side of the cover plate protective film.

[0013] In one embodiment, the cross-sectional shape of the color-changing label is one of a rectangle, an arc, and a polygon.

[0014] In one embodiment, the color-changing label includes a label body and a color-changing layer, and the color-changing layer is coated on the upper surface and / or the lower surface of the label body.

[0015] In one embodiment, the area of the color-changing label is S 1 , and the area of the cover plate is S 2 , 0.005 ≤ S 1 / S 2 ≤ 0.02.

[0016] The present utility model further provides a liquid crystal display module, and the liquid crystal display module includes a cover plate structure, and the cover plate structure includes:

[0017] A cover plate for covering a liquid crystal display panel;

[0018] A color-changing label connected to the cover plate and partially exposed at the outer edge of the cover plate; the color-changing label can generate a color change under ultraviolet irradiation.

[0019] The present utility model further provides a mobile device, and the mobile device includes the above-mentioned liquid crystal display module.

[0020] The technical solution of the present utility model is to provide a color-changing label on the cover plate. The color-changing label can be connected to the cover plate, or can be a part of the cover plate. Alternatively, the color-changing label can also be provided on the cover plate protective film. When the cover plate is installed with the liquid crystal display panel, the color-changing label will generate a color change under ultraviolet irradiation, while the color-changing label that has not been irradiated by ultraviolet light remains the original color. In this way, when the operator sorts the finished liquid crystal display module in the later stage, the change on the color-changing label can be used to judge whether the cover plate and the liquid crystal display panel have been irradiated and cured by ultraviolet light when bonded with the optical adhesive, ensuring the quality of the liquid crystal display module. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0022] Figure 1 Schematic diagram of the structure of an embodiment of the cover structure provided by the present invention;

[0023] Figure 2 For Figure 1 Exploded view of the middle cover structure;

[0024] Figure 3 Schematic diagram of the structure of another embodiment of the cover structure in the present invention;

[0025] Figure 4 Schematic diagram of the structure of yet another embodiment of the cover structure in the present invention.

[0026] Explanation of the reference numerals in the drawings:

[0027] 1000, cover structure; 1, cover; 2, color-changing label; 3, cover protective film; 31, tearing part.

[0028] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the drawings. Specific embodiments

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, these descriptions of "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] Optical glue is a special adhesive used for bonding transparent optical elements. It has the characteristics of being colorless and transparent, having a high light transmittance, and good bonding strength. In the production of displays such as mobile phones and tablets, the optical glue is cured by ultraviolet irradiation to bond the cover plate and the liquid crystal display panel to form a liquid crystal display module.

[0033] In the production and shipment of modules, a quality abnormality phenomenon will occur: some products are not cured by ultraviolet irradiation. Since module products are stacked with various flat components, although the viscosity of the optical glue that has not been cured by ultraviolet irradiation is sufficient to maintain the bonding of the products during production. However, after shipping to the whole machine factory, during the process of assembling the case or even the whole machine, the warpage degree of components such as the case is relatively large. The viscosity of the uncured optical glue is insufficient, and separation will occur. Since there are no obvious appearance and quality differences before and after the module is cured by ultraviolet rays, it is very difficult for operators to distinguish the modules that have not been cured by ultraviolet irradiation, which easily leads to these semi-finished products directly flowing to the subsequent processes, posing potential product quality hazards.

[0034] To solve the above problems, the present utility model proposes a cover plate structure, aiming to facilitate the inspection of whether the cover plate and the liquid crystal display panel have been cured by ultraviolet irradiation and ensure product quality.

[0035] Please refer to Figures 1 to 4 , this solution proposes a cover plate structure 1000, including a cover plate 1 and a color-changing label 2. The cover plate 1 is used to cover the liquid crystal display panel; the color-changing label 2 is connected to the cover plate 1 and partially exposed at the outer edge of the cover plate 1, or the cover plate structure 1000 further includes a cover plate protective film 3. The cover plate protective film 3 is located inside and / or outside the cover plate 1, and the color-changing label 2 is connected to the cover plate protective film 3. The color-changing label 2 can produce a color change under light irradiation, preferably, it can change color under ultraviolet irradiation.

[0036] The technical solution of the present utility model is to provide a color-changing label 2 on the cover plate 1. The color-changing label 2 can be connected to the cover plate 1, separated from the cover plate 1, or integrally formed with the cover plate 1. The color-changing label 2 can be provided on the inner or outer side of the cover plate 1, or color-changing labels 2 can be provided on both the inner and outer sides of the cover plate 1. Alternatively, the color-changing label 2 can be provided on the cover plate protective film 3, and the cover plate protective film 3 can be connected to the inner or outer side of the cover plate 2, or provided on both the inner and outer sides. It should be noted that the inner side of the cover plate 1 herein refers to the side where the cover plate 1 is assembled with the liquid crystal display panel, and the outer side of the cover plate 1 refers to the side facing away from the liquid crystal display panel. When the cover plate 1 is installed with the liquid crystal display panel, the color-changing label 2 will change color under ultraviolet irradiation, while the color-changing label 2 that has not been irradiated by ultraviolet light remains in its original color. In this way, during the later sorting of the finished liquid crystal display module by the operator, it can be judged whether the cover plate 1 and the liquid crystal display panel have been irradiated and cured by ultraviolet light when bonded with optical glue according to the change on the color-changing label 2, ensuring the quality of the liquid crystal display module. Optionally, to ensure the stable connection of the color-changing label 2 to the cover plate 1 and prevent the color-changing label 2 from detaching during the movement of the cover plate 1, the connection strength between the two can be ensured by bonding the color-changing label 2 to the cover plate 1. The color-changing label 2 and the cover plate 1 can also be integrally designed and the color-changing label 2 can be removed from the cover plate 1 after subsequent inspection.

[0037] In an alternative embodiment, to protect the cover plate 1 before installation, the cover plate structure 1000 includes a cover plate protective film 3, and the cover plate protective film 3 is located on the inner or outer side of the cover plate 1. The cover plate 1 is protected and dust-proofed by providing the cover plate protective film 3 to ensure the cleanliness of the cover plate 1 before installation with the liquid crystal display panel, and the color-changing label 2 can be provided on the cover plate protective film 3 to facilitate the removal of the color-changing label 2 after subsequent inspection.

[0038] Optionally, the connection position of the color-changing label 2 on the cover plate protective film 3 can also be flexibly selected. The cover plate 1, the cover plate protective film 3, and the color-changing label 2 are stacked in sequence, or the cover plate 1, the color-changing label 2, and the cover plate protective film 3 are stacked in sequence. During actual setting, the color-changing label 2 can be connected to the side of the cover plate protective film 3 facing away from the cover plate 1, or the color-changing label 2 can be provided between the cover plate 1 and the cover plate protective film 3, which can be selected according to actual needs. In addition, in this solution, the color-changing label 2 is connected to the cover plate 1 or the cover plate protective film 3 by bonding, facilitating the operator to attach and remove it later.

[0039] In an alternative embodiment, to facilitate the operator to tear off the cover plate protective film 3, an edge of the cover plate protective film 3 extends to form a tearing part 31, and the color-changing label 2 is connected to the tearing part 31. Please refer to Figures 1 to 4The tearing hand portion 31 is formed by extending the outer edge of the cover protective film 3 outward, so that the operator can hold the tearing hand portion 31 and apply a pulling force to tear off the cover protective film 3. In this way, the color-changing label 2 can also be connected to the position of the tearing hand portion 31, so that the color-changing label 2 can also be removed when the cover protective film 3 is torn off, reducing the subsequent cleaning process. Optionally, the tearing hand portion 31 can be set at any position on any side of the cover protective film 3. In this embodiment, in order to facilitate the operator to hold the tearing hand portion 31 to tear off the cover protective film 3, the tearing hand portion 31 can be set on the right side of the cover protective film 3 to adapt to the habit of most operators who are accustomed to using their right hands. For example, the tearing hand portion 31 can be set on the right side in the length direction or the right side in the width direction of the cover protective film 3 for easy tearing.

[0040] The color-changing label 2 can be attached to the upper surface or lower surface of the tear hand portion 31 by electrostatic adsorption, bonding, pressing, etc., or can be set on both sides of the upper and lower surfaces of the tear hand portion 31, or can be wrapped around the outer wall of the tear hand portion 31 along the circumferential direction of the outer wall of the tear hand portion 31.

[0041] The cross-sectional shape of the tear hand portion 31 can be rectangular, arc-shaped, polygonal, etc., and the cross-sectional shape of the color-changing label 2 can be matched with the cross-sectional shape of the tear hand portion 31. The cross-sectional area of ​​the color-changing label 2 can be the same as or different from the cross-sectional area of ​​the tear hand portion 31. When the cross-sectional area of ​​the color-changing label 2 is different from the cross-sectional area of ​​the tear hand portion 31, the cross-sectional area of ​​the color-changing label 2 can be slightly smaller or slightly larger than the cross-sectional area of ​​the tear hand portion 31.

[0042] Furthermore, in order to facilitate the operator to tear off the cover plate protective film 3 from the cover plate 1, the color-changing label 2 is arranged at one end of the cover plate protective film 3 in the length direction, and / or the color-changing label 2 is located on the right side of the cover plate protective film 3. In practical applications, the color-changing label 2 can be arranged at any position on any side of the cover plate protective film 3, which will not affect the inspection effect of the color-changing label 2. In this embodiment, please refer to Figures 1 to 4, by laminating the color-changing label 2 with the tearing part 31 on the cover plate protective film 3, the operator can remove the color-changing label 2 while tearing off the cover plate protective film 3 through the tearing part 31. Setting the color-changing label 2 at the end in the length direction of the cover plate protective film 3 can make it more convenient for the operator to hold the color-changing label 2 and apply an upward force, so that the cover plate protective film 3 is first lifted at one corner and then gradually torn off. If the color-changing label 2 is set in the middle of the cover plate protective film 3, when tearing off the cover plate protective film 3, a convex bulge will be formed in the middle part of the cover plate protective film 3 when holding the color-changing label 2 and lifting it, and more force will be required to tear it off later. Therefore, setting the color-changing label 2 at the end in this embodiment can make the tearing process smoother and more labor-saving. Further, the color-changing label 2 can be set on the right side of the cover plate protective film 3 to adapt to the operating habit of most operators who are used to using their right hands. In other embodiments, please refer to Figure 3 and Figure 4 , the color-changing label 2 can also be set on the right side in the width direction of the cover plate protective film 3, which is also convenient for the operator to tear off.

[0043] In an optional embodiment, the shape of the color-changing label 2 can also be designed diversely. The shape of the color-changing label 2 can be one of a rectangle, an arc, and a polygon. In this embodiment, please refer to Figures 1 to 4 , the cross-sectional shape of the color-changing label 2 is a rectangle. Of course, in other optional embodiments, the shape of the color-changing label 2 can be a semi-circle or other shapes with a curved arc, or one of a triangle, a pentagon, a hexagon, and other polygons, which can be selected according to actual needs and will not be specifically limited here.

[0044] Optionally, for the convenience of manufacturing the color-changing label 2, the color-changing label 2 includes a label body and a color-changing layer. The color-changing layer is coated on the upper surface and / or the lower surface of the label body. During the actual operation process, the color-changing layer can be coated on the label body. The color-changing layer can be coated on one of the upper surface and the lower surface of the label body, or the color-changing layer can be coated on both the upper surface and the lower surface at the same time. Connect the label body to the cover plate 1 or the cover plate protective film 3 to realize the manufacturing of the color-changing label 2. In this embodiment, the manufacturing process of the color-changing label 2 is simplified by directly coating the color-changing layer on the tearing part 31 of the cover plate protective film 3, and the manufacturing of the color-changing label 2 is completed when the cover plate protective film 3 is produced, thus simplifying the production process. In this embodiment, the color-changing layer is a color-changing glue, which can change color after being irradiated by ultraviolet light, changing from the original transparent state to colors such as red and green. The specific color can be selected according to actual needs and will not be specifically limited here.

[0045] Optionally, for the convenience of the operator to observe the color-changing label 2, the area of the color-changing label 2 is S 1 , and the area of the cover plate 1 is S2 ,0.005 ≤ S 1 / S 2 ≤ 0.02. The size of the color-changing label 2 should not be made too small or too large. If the size of the color-changing label 2 is too small, it will affect the operator's observation and identification. If it is too large, it will cause unnecessary material waste and increase the production cost. In this embodiment, the size of the color-changing label 2 is five-thousandths to two percent of the area of the cover plate 1, and can be specifically selected according to actual needs.

[0046] The present utility model also provides a liquid crystal display module, which includes a cover plate structure 1000, an optical adhesive, and a liquid crystal display panel. The side of the cover plate 1 facing away from the color-changing label 2 is bonded to the liquid crystal display panel through the optical adhesive. The specific structure of the cover plate structure 1000 refers to the above embodiment. Since this liquid crystal display module adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0047] The present utility model also provides a mobile device, which includes a liquid crystal display module. The liquid crystal display module includes a cover plate structure 1000. The specific structure of the cover plate structure 1000 refers to the above embodiment. Since this liquid crystal display module adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0048] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A cover plate structure, characterized in that: The cover plate structure includes a cover plate and a color-changing label, wherein the color-changing label can change color when exposed to light. The color-changing label is connected to the cover plate and exposed at the outer edge of the cover plate, or The cover plate structure further includes a cover plate protective film, wherein the cover plate protective film is located on the inner side and / or the outer side of the cover plate, and the color-changing label is connected to the cover plate protective film.

2. The cover plate structure according to claim 1, characterized in that: The cover plate structure includes the cover plate protective film, and the cover plate protective film is located on the inner side or the outer side of the cover plate.

3. The cover plate structure according to claim 2, characterized in that: The outer edge of the cover plate protective film extends to form a tear handle portion, and the color-changing label is connected to the tear handle portion.

4. The cover plate structure according to claim 2, characterized in that: The cover plate, the cover plate protective film and the color-changing label are stacked in sequence, or The cover plate, the color-changing label and the cover plate protective film are stacked in sequence.

5. The cover plate structure according to claim 2, characterized in that: The color-changing label is arranged at one end of the cover plate protective film in the length direction, and / or The color-changing label is located on the right side of the cover plate protective film.

6. The cover plate structure according to any one of claims 1 to 5, characterized in that: The shape of the color-changing label is one of an arc and a polygon.

7. The cover plate structure according to claim 6, characterized in that: The color-changing label comprises a label body and a color-changing layer, and the color-changing layer is coated on the upper surface and / or the lower surface of the label body.

8. The cover plate structure according to claim 6, characterized in that: The area of ​​the color-changing label is S1, the area of ​​the cover plate is S2, and 0.005≤S1 / S2≤0.

02.

9. A liquid crystal display module, characterized in that: comprising the cover plate structure according to any one of claims 1 to 8, and Optical glue; Liquid crystal display panel, the side of the cover plate facing away from the color-changing label is bonded to the liquid crystal display panel by the optical adhesive.

10. A mobile device, characterized in that: Comprising the liquid crystal display module as claimed in claim 9.

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