Liquid crystal display screen capable of improving adhesion strength of cover plate
By setting black foam glue on the upper iron frame of the LCD screen, the problem of small adhesion area between the cover plate and the upper iron frame is solved, the adhesion strength and product competitiveness are improved, and the production and maintenance costs are reduced.
Patent Information
- Application Number
- CN202421777761.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-25
AI Technical Summary
In traditional LCD displays, the adhesion area between the cover plate and the upper iron frame is small, which makes the cover plate easily separated from the upper iron frame, which in turn affects the fixation of the display module and the competitiveness of the product.
By providing black foam glue on the extension of the upper iron frame, the upper surface area of the upper iron frame is increased, thereby increasing the adhesion area between the cover plate and the upper iron frame and enhancing the adhesion strength.
Effectively prevent the cover plate from being separated from the upper iron frame, improve the competitiveness of the product, and reduce production and maintenance costs.
Smart Images
Figure CN222965518U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal display screen with improved cover plate adhesion strength. Background Art
[0002] The traditional upper iron frame is usually bent downward and buckled with the buckle of the lower frame, so that the upper iron frame and the lower frame are fixed, and the upper surface of the upper iron frame is glued and fixed to the lower surface of the cover. Since the bonding area of the upper iron frame is small, the cover is easily separated from the upper iron frame and falls off, which causes the display module under the cover to not be fixed, thereby reducing the competitiveness of the product. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to increase the bonding area between the cover plate and the upper iron frame, thereby improving the bonding strength of the cover plate, preventing the cover plate from being separated from the upper iron frame, and improving the competitiveness of the product.
[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0005] In order to solve the above technical problems, the utility model provides a liquid crystal display screen with improved cover plate adhesion strength, which comprises a lower frame, an upper iron frame, black foam glue and a cover plate, the lower frame comprises a bottom plate and a side wall extending upward from the edge of the bottom plate, and a buckle is arranged on the side wall; the upper iron frame comprises a support plate and an extension part, the cross-sectional shape of the support plate is a rectangular ring, the support plate is arranged on the upper surface of the side wall, the extension part is formed by extending outward from the four sides of the support plate, the extension part comprises a bending area and a non-bending area, the extension part located in the bending area is provided with a buckle position corresponding to the position of the buckle, the extension part located in the bending area is bent downward and fixed to the buckle by buckling through the buckle position; the black foam glue is arranged on the upper surface of the support plate and the upper surface of the extension part located in the non-bending area; the cover plate is adhered to the top of the upper iron frame by the black foam glue.
[0006] As a preferred implementation of the liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, a touch film is provided on the lower surface of the cover plate.
[0007] As a preferred implementation of the liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, the outer side edge of the extension portion located in the non-bending area is flush with the outer side edge of the cover plate.
[0008] As a preferred embodiment of the liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, an anti-fall plate is arranged above the cover plate, an ink layer is arranged on the lower surface of the anti-fall plate located in the non-visible area, the cover plate and the anti-fall plate are fixed by an adhesive layer, and the adhesive layer completely covers the ink layer and the lower surface of the anti-fall plate.
[0009] As a preferred implementation of the liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, the thickness of the ink layer is 8 μm to 15 μm.
[0010] As a preferred implementation of the liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, the thickness of the adhesive layer is 50 μm.
[0011] As a preferred implementation of the liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, the thickness of the anti-fall plate is 5mm to 10mm, and the thickness of the cover plate is 3mm to 5mm.
[0012] As a preferred implementation of the liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, the upper surface of the anti-fall plate is covered with an anti-fingerprint film layer.
[0013] As a preferred implementation of the liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, a color conversion layer is provided on the upper surface of the anti-fingerprint film layer located in the non-display area.
[0014] As a preferred implementation of the liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, the hardness of the anti-fall plate is greater than the hardness of the cover plate.
[0015] The utility model has the following beneficial effects:
[0016] Since the extension portion located in the bending area is bent downward and fixed on the buckle by buckling, that is, the extension portion in the non-bending area is not bent downward, the extension portion in the non-bending area can be used to paste black foam glue, thereby increasing the surface area of the upper surface of the upper iron frame, thereby increasing the bonding area between the cover plate and the upper iron frame, and further increasing the bonding strength of the cover plate, preventing the cover plate from separating from the upper iron frame, and improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] 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.
[0018] Figure 1 The utility model provides a structural schematic diagram of a liquid crystal display screen with improved cover plate adhesion strength.
[0019] Figure 2 for Figure 1 Schematic diagram of the structure after the middle and upper iron frame is bent.
[0020] Figure 3 for Figure 1 Schematic diagram of the improved structure at the middle cover.
[0021] Description of Figure Numbers:
[0022] Lower frame 1; upper iron frame 2; black foam glue 3; cover plate 4; bottom plate 11; side wall 12; buckle 13; support plate 21; extension part 22; bending area 221; non-bending area 222;
[0023] Anti-fall plate 5; ink layer 51; adhesive layer 52. DETAILED DESCRIPTION
[0024] 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.
[0025] 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.
[0026] 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.
[0027] The utility model provides a liquid crystal display screen with improved cover plate adhesion strength, comprising a lower frame, an upper iron frame, black foam glue and a cover plate, the lower frame comprising a bottom plate and a side wall extending upward from the edge of the bottom plate, the side wall being provided with a buckle; the upper iron frame comprising a support plate and an extension portion, the cross-sectional shape of the support plate being a rectangular ring, the support plate being arranged on the upper surface of the side wall, the extension portion being formed by extending outward from the four sides of the support plate, the extension portion comprising a bending area and a non-bending area, a buckle position corresponding to the position of the buckle being arranged on the extension portion located in the bending area, the extension portion located in the bending area being bent downward and being fastened to the buckle through the buckle position; the black foam glue being arranged on the upper surface of the support plate and the upper surface of the extension portion located in the non-bending area; the cover plate being adhered to the top of the upper iron frame by the black foam glue.
[0028] Since the extension portion located in the bending area is bent downward and fixed on the buckle by buckling, that is, the extension portion in the non-bending area is not bent downward, the extension portion in the non-bending area can be used to paste black foam glue, thereby increasing the surface area of the upper surface of the upper iron frame, thereby increasing the bonding area between the cover plate and the upper iron frame, and further increasing the bonding strength of the cover plate, preventing the cover plate from separating from the upper iron frame, and improving the competitiveness of the product.
[0029] 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.
[0030] See also Figure 1 and Figure 2, a liquid crystal display screen with improved cover plate adhesion strength provided by the utility model, comprising a lower frame 1, an upper iron frame 2, a black foam glue 3 and a cover plate 4, wherein the lower frame 1 comprises a bottom plate 11 and a side wall 12 extending upward from the edge of the bottom plate 11, and a buckle 13 is arranged on the outer side of the side wall 12; the upper iron frame 2 comprises a support plate 21 and an extension portion 22, wherein the cross-sectional shape of the support plate 21 is a rectangular ring, the support plate 21 is arranged on the upper surface of the side wall 12, the extension portion 22 is formed by extending outward from the four sides of the support plate 21, and the extension portion 22 comprises a bending Zone 221 and non-bending zone 222, a buckle position corresponding to the position of the buckle 13 is set on the extension part 22 located in the bending zone 221, the extension part 22 located in the bending zone 221 is bent downward and fixed on the buckle 13 by buckling, and the extension part 22 of the non-bending zone 222 remains on the same plane with the support plate 21; black foam glue 3 is set on the upper surface of the support plate 21 and the upper surface of the extension part 22 located in the non-bending zone 222; the cover plate 4 is adhered to the top of the upper iron frame 2 by the black foam glue 3. Since the extension portion 22 located in the bending area 221 is bent downward and fixed on the buckle 13 by buckling, that is, the extension portion 22 in the non-bending area 222 is not bent downward, the extension portion 22 in the non-bending area 222 can be used to stick the black foam glue 3, thereby increasing the surface area of the upper surface of the upper iron frame 2, thereby increasing the sticking area between the cover plate 4 and the upper iron frame 2, and further increasing the sticking strength of the cover plate 4, preventing the cover plate 4 from separating from the upper iron frame 2, and improving the competitiveness of the product.
[0031] Furthermore, a touch film is disposed on the lower surface of the cover plate 4 to realize the touch function of the cover plate 4 .
[0032] Furthermore, the outer side edge of the extension portion 22 in the non-bending area 222 is flush with the outer side edge of the cover plate 4, so that the cover plate 4 does not form a suspended portion, which is stronger and more beautiful.
[0033] See also Figure 3 As a further optimization scheme of Example 1, in this embodiment, an anti-fall plate 5 is provided above the cover plate 4, and an ink layer 51 is provided on the lower surface of the anti-fall plate 5 located in the non-visible area. The cover plate 4 and the anti-fall plate 5 are fixed by an adhesive layer 52, and the adhesive layer 52 completely covers the ink layer 51 and the lower surface of the anti-fall plate 5. Since there is another layer of anti-fall plate 5 above the cover plate 4, and the adhesive layer 52 is printed on the entire surface of the back of the anti-fall plate 5, it covers the ink layer 51 in the non-visible area and the lower surface of the anti-fall plate 5 in the visible area, fills the ink step difference, and does not cause the phenomenon of laminating bubbles and edge yellow spots. The cover plate 4 can be fully laminated with the upper polarizer through optical glue. Since the cover plate 4 is not provided with an ink layer 51, it will not cause the phenomenon of laminating bubbles and edge yellow spots, thereby avoiding display abnormalities of the liquid crystal display module, thereby reducing the probability of defective products in the liquid crystal display module, and the production and manufacturing costs of the liquid crystal display module will also be greatly reduced.
[0034] And when the anti-fall plate 5 is impacted by external force, the anti-fall plate 5 will break first. Due to the buffering effect of the adhesive layer 52, the cover plate 4 is not easy to break, so the cover plate 4 and the main screen can be well protected. When the anti-fall plate 5 is broken, the anti-fall plate 5 can be easily peeled off, and only a new anti-fall plate 5 needs to be replaced. There is no need to replace the entire LCD display module, thereby greatly reducing the maintenance cost of the LCD display module, thereby improving the product competitiveness of the LCD display module, thereby meeting the company's growing quality requirements.
[0035] Further, the thickness of the ink layer 51 is 8 μm to 15 μm.
[0036] Furthermore, the thickness of the adhesive layer 52 is 50 μm.
[0037] Furthermore, the thickness of the anti-fall plate 5 is 5 mm to 10 mm, and the thickness of the cover plate 4 is 3 mm to 5 mm.
[0038] Furthermore, the upper surface of the anti-fall plate 5 is covered with an anti-fingerprint film layer to prevent user fingerprints from remaining on the anti-fall plate 5 and enhance the aesthetics.
[0039] Furthermore, a color conversion layer is provided on the upper surface of the anti-fingerprint film layer located in the non-display area to further enhance the aesthetics of the product.
[0040] Furthermore, the hardness of the anti-fall plate 5 is greater than the hardness of the cover plate 4 to enhance the protection effect.
[0041] 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.
[0042] 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 liquid crystal display screen with improved cover plate adhesion strength, characterized in that: It includes: A lower frame, comprising a bottom plate and side walls extending upward from the edge of the bottom plate, wherein buckles are provided on the side walls; An upper iron frame, comprising a support plate and an extension portion, wherein the cross-sectional shape of the support plate is a rectangular ring, the support plate is arranged on the upper surface of the side wall, the extension portion is formed by extending outwards from the four sides of the support plate, the extension portion comprises a bending area and a non-bending area, a buckle position corresponding to the position of the buckle is arranged on the extension portion located in the bending area, and the extension portion located in the bending area is bent downward and fixed on the buckle through the buckle position; Black foam glue, which is arranged on the upper surface of the support plate and the upper surface of the extension portion located in the non-bending area; The cover plate is adhered on the upper iron frame by the black foam glue.
2. The liquid crystal display screen with improved cover plate adhesion strength according to claim 1, characterized in that: A touch film is arranged on the lower surface of the cover plate.
3. The liquid crystal display screen with improved cover plate adhesion strength according to claim 1, characterized in that: The outer side edge of the extension portion located in the non-bending area is flush with the outer side edge of the cover plate.
4. The liquid crystal display screen with improved cover plate adhesion strength according to claim 1, characterized in that: An anti-fall plate is arranged above the cover plate, and an ink layer is arranged on the lower surface of the anti-fall plate located in the non-visible area. The cover plate and the anti-fall plate are fixed by an adhesive layer, and the adhesive layer completely covers the ink layer and the lower surface of the anti-fall plate.
5. The liquid crystal display screen with improved cover plate adhesion strength according to claim 4, characterized in that: The ink layer has a thickness of 8 μm to 15 μm.
6. The liquid crystal display screen with improved cover plate adhesion strength according to claim 4, characterized in that: The thickness of the adhesive layer is 50 μm.
7. The liquid crystal display screen with improved cover plate adhesion strength according to claim 4, characterized in that: The thickness of the anti-fall plate is 5mm to 10mm, and the thickness of the cover plate is 3mm to 5mm.
8. The liquid crystal display screen with improved cover plate adhesion strength according to claim 4, characterized in that: The upper surface of the anti-fall plate is covered with an anti-fingerprint film layer.
9. The liquid crystal display screen with improved cover plate adhesion strength according to claim 4, characterized in that: A color conversion layer is arranged on the upper surface of the anti-fingerprint film layer located in the non-display area.
10. The liquid crystal display screen with improved cover plate adhesion strength according to claim 4, characterized in that: The hardness of the anti-fall plate is greater than the hardness of the cover plate.