Liquid crystal display screen capable of avoiding white edges

Abstract

The utility model discloses a liquid crystal display screen capable of avoiding white edges, which comprises a lower frame, an upper iron stand and frame pasting foam rubber, and the lower frame comprises a lower bottom plate and a lower side wall extending upwards from the edge of the lower bottom plate; the upper iron stand is arranged above the lower frame, the upper iron stand comprises an upper top plate and an upper side wall extending downwards from the edge of the upper top plate, the upper top plate and the upper side wall wrap the lower side wall, and the upper top plate is in a frame shape; the frame pasting foam rubber is arranged above the upper top plate, the frame pasting foam rubber is in a frame shape, the inner side of the upper top plate is longer than the inner side of the frame pasting foam rubber and extends inwards to form a step, and a black ink layer is arranged on the outer surface, located at the step, of the upper top plate. The exposed part of the upper iron frame is covered by the black ink layer, a user can only see the black edge when inclining at a certain angle, and the black edge is integrated with other black BM edges to form an integrated black effect, so that white edges are avoided, and the appearance display effect is improved.

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 that avoids white edges. Background Art

[0002] A liquid crystal display screen generally consists of a cover plate, a liquid crystal display module, a frame-attached foam adhesive, an upper iron frame, and a backlight module; usually, in the assembly scheme, we first attach the frame-attached foam adhesive to the upper iron frame and then complete the assembly of the liquid crystal display module. To avoid the frame-attached foam adhesive sticking out of the edge of the iron frame, the window size of the foam adhesive is generally larger than that of the upper iron frame. In this way, when viewed at a certain angle within the normal viewing angle, the iron frame edge of the upper iron frame can be seen, which is usually a white edge during display, seriously affecting the appearance display effect. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is how to avoid white edges and improve the appearance display effect.

[0004] The technical problem to be solved by the utility model is realized through the following technical solutions:

[0005] To solve the above technical problem, the utility model provides a liquid crystal display screen that avoids white edges, which includes a lower frame, an upper iron frame, and a frame-attached foam adhesive. The lower frame includes a lower bottom plate and a lower side wall extending upward from the edge of the lower bottom plate; the upper iron frame is arranged above the lower frame, and the upper iron frame includes an upper top plate and an upper side wall extending downward from the edge of the upper top plate. The upper top plate and the upper side wall wrap the lower side wall, and the upper top plate is in a frame shape; the frame-attached foam adhesive is arranged above the upper top plate, and the frame-attached foam adhesive is in a frame shape. The inner side of the upper top plate is longer than the inner side of the frame-attached foam adhesive and extends inward to form a step, and a black ink layer is arranged on the outer surface of the upper top plate at the step.

[0006] As a preferred embodiment of the liquid crystal display screen that avoids white edges provided by the utility model, the black ink layer is arranged on the inner side surface and the upper surface of the upper top plate.

[0007] As a preferred embodiment of the liquid crystal display screen that avoids white edges provided by the utility model, a display module is arranged above the frame-attached foam adhesive, a cover plate is arranged above the display module, and a black light-shielding ink is arranged on the lower surface of the cover plate in the non-visible area.

[0008] As a preferred embodiment of the liquid crystal display screen that avoids white edges provided by the utility model, the distance between the inner side of the black light-shielding ink and the center of the visible area is less than the distance between the upper top plate and the center of the visible area.

[0009] As a preferred embodiment of the liquid crystal display screen provided by the present utility model to avoid white edges, a ring groove is formed on the lower surface of the cover plate, the ring groove is located in the non-visible area, and an optical adhesive is coated on the lower surface of the cover plate within the area enclosed by the ring groove.

[0010] As a preferred embodiment of the liquid crystal display screen provided by the present utility model to avoid white edges, the cross-sectional shape of the ring groove is trapezoidal.

[0011] As a preferred embodiment of the liquid crystal display screen provided by the present utility model to avoid white edges, the cross-sectional shape of the ring groove is an isosceles trapezoid.

[0012] As a preferred embodiment of the liquid crystal display screen provided by the present utility model to avoid white edges, the ring groove is an open groove with a wider outer width and a narrower inner width.

[0013] As a preferred embodiment of the liquid crystal display screen provided by the present utility model to avoid white edges, the depth of the ring groove is 0.1 mm.

[0014] As a preferred embodiment of the liquid crystal display screen provided by the present utility model to avoid white edges, a surface treatment layer for increasing the surface roughness is provided on the inner surface of the ring groove.

[0015] The present utility model has the following beneficial effects:

[0016] Since a black ink layer is provided on the outer surface of the upper top plate at the step, the exposed part of the upper iron frame is covered by the black ink layer. When the user views it at a certain inclined angle, only the black edge can be seen, which merges with other black BM edges to form an integrated black effect, thereby avoiding the appearance of white edges, improving the appearance display effect, and further enhancing the competitiveness of the product. Description of the Drawings

[0017] In order to more clearly illustrate the solutions in the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a liquid crystal display screen provided by the present utility model to avoid white edges.

[0019] Figure 2 For Figure 1 The improved structural schematic diagram of the cover plate in

[0020] Explanation of the reference numerals in the drawings:

[0021] Lower frame 1; upper iron frame 2; frame adhesive foam tape 3; lower bottom plate 11; lower side wall 12; upper top plate 21; upper side wall 22; black ink layer 23;

[0022] Display module 4; cover plate 5; black light-shielding ink 6;

[0023] Circular groove 51; optical adhesive 7. Detailed implementation manner

[0024] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0026] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] The utility model provides a liquid crystal display screen that avoids white edges, which includes a lower frame, an upper iron frame, and a frame-attached foam adhesive. The lower frame includes a lower bottom plate and a lower side wall extending upward from the edge of the lower bottom plate; the upper iron frame is arranged above the lower frame, and the upper iron frame includes an upper top plate and an upper side wall extending downward from the edge of the upper top plate. The upper top plate and the upper side wall wrap the lower side wall, and the upper top plate is in a frame shape; the frame-attached foam adhesive is arranged above the upper top plate, and the frame-attached foam adhesive is in a frame shape. The inner side of the upper top plate is longer than the inner side of the frame-attached foam adhesive and extends inward to form a step, and a black ink layer is arranged on the outer surface of the upper top plate at the step.

[0028] Since the outer surface of the upper top plate at the step is provided with a black ink layer, the exposed part of the upper iron frame is covered by the black ink layer. When the user views it at a certain inclined angle, only the black edge can be seen, which merges with other black BM edges to form an integrated black effect, thereby avoiding the appearance of white edges, improving the appearance display effect, and further enhancing the competitiveness of the product.

[0029] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the drawings. The present invention will be described in detail below with reference to the drawings and embodiments. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, but should not be construed as a limitation to the present invention.

[0030] Please refer to Figure 1, A liquid crystal display screen provided by the present utility model to avoid white edges, which includes a lower frame 1, an upper iron frame 2, and a frame paste foam adhesive 3. The lower frame 1 includes a lower bottom plate 11 and a lower side wall 12, and the lower side wall 12 extends upward from the edge of the lower bottom plate 11; the upper iron frame 2 is arranged above the lower frame 1, and the upper iron frame 2 includes an upper top plate 21 and an upper side wall 22, and the upper side wall 22 extends downward from the edge of the upper top plate 21. The upper top plate 21 and the upper side wall 22 wrap the outside of the lower side wall 12, and the cross-sectional shape of the upper top plate 21 is a frame shape; the frame paste foam adhesive 3 is arranged above the upper top plate 21, and the cross-sectional shape of the frame paste foam adhesive 3 is a frame shape. The inner side of the upper top plate 21 is longer than the inner side of the frame paste foam adhesive 3 and extends inward to form a step, that is, the inner side of the upper top plate 21 extends beyond the frame paste foam adhesive 3 by a certain distance, and a black ink layer 23 is arranged on the outer surface of the upper top plate 21 at the step. Since the black ink layer 23 is arranged on the outer surface of the upper top plate 21 at the step, the exposed part of the upper iron frame 2 is covered by the black ink layer 23. When the user views at a certain inclined angle, only the black edge can be seen, which merges with other black BM edges to form an integrated black effect, thereby avoiding the appearance of white edges, improving the appearance display effect, and further enhancing the competitiveness of the product.

[0031] Further, the color of the frame paste foam adhesive 3 is black.

[0032] Further, the black ink layer 23 is arranged on the inner side surface and the upper surface of the upper top plate 21, that is, the lower surface of the upper top plate 21 cannot be seen by the user, so the lower surface of the upper top plate 21 can be not coated with the black ink layer 23 to reduce the product cost.

[0033] Further, a display module 4 is arranged above the frame paste foam adhesive 3, and a cover plate 5 is arranged above the display module 4. A black light-shielding ink 6 is arranged on the lower surface of the cover plate 5 in the non-visible area.

[0034] Further, the distance between the inner side of the black light-shielding ink 6 and the center of the visible area is less than the distance between the upper top plate 21 and the center of the visible area, that is, the inner side of the black light-shielding ink 6 extends beyond the upper top plate 21 by a certain distance, so that the user cannot see the lower iron frame at a general top-down viewing angle.

[0035] Please refer to Figure 2 , As a further optimized solution of Embodiment 1, in this embodiment, a ring groove 51 is opened on the lower surface of the cover plate 5. The ring groove 51 is located in the non-visible area, and an optical glue 7 is coated on the lower surface of the cover plate 5 within the area enclosed by the ring groove 51, that is, the ring groove 51 surrounds the optical glue 7. The excess optical glue 7 can overflow into the ring groove 51 when coating the optical glue 7, avoiding the optical glue 7 from overflowing to other areas.

[0036] Further, the cross-sectional shape of the annular groove 51 is trapezoidal. More preferably, the cross-sectional shape of the annular groove 51 is isosceles trapezoidal. The annular groove 51 is an open groove with a wider outer width and a narrower inner width, so that the optical adhesive 7 can stay in the annular groove 51 after entering it, to prevent the optical adhesive 7 from overflowing to other areas.

[0037] Further, the depth of the annular groove 51 is 0.1 mm, to provide sufficient overflow space for the optical adhesive 7, so as to prevent the optical adhesive 7 from overflowing to other areas.

[0038] Further, the inner surface of the annular groove 51 is provided with a surface treatment layer for enhancing the surface roughness, so that the optical adhesive 7 can better adhere to the annular groove 51 and prevent the optical adhesive 7 from overflowing to other areas.

[0039] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] Obviously, the above-described embodiments are only part of the embodiments of the present application, rather than all embodiments. The drawings show preferred embodiments of the present application, but 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 disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields shall be within the scope of the patent protection of the present application by the same token.

Claims

1. A liquid crystal display screen that avoids the appearance of white edges, characterized in that: It includes: A lower frame, comprising a lower bottom plate and a lower side wall extending upward from an edge of the lower bottom plate; An upper iron frame, which is arranged above the lower frame, the upper iron frame comprises an upper top plate and an upper side wall extending downward from the edge of the upper top plate, the upper top plate and the upper side wall wrap the lower side wall, and the upper top plate is frame-shaped; The frame-mounted foam adhesive is arranged above the upper top plate. The frame-mounted foam adhesive is frame-shaped. The inner side of the upper top plate is longer than the inner side of the frame-mounted foam adhesive and extends inward to form a step. The outer surface of the upper top plate located at the step is provided with a black ink layer.

2. The liquid crystal display screen for avoiding white edges according to claim 1, characterized in that: The black ink layer is arranged on the inner side surface and the upper surface of the upper top plate.

3. The liquid crystal display screen for avoiding white edges according to claim 1, characterized in that: A display module is arranged above the frame-sticking foam adhesive, a cover plate is arranged above the display module, and a lower surface of the cover plate located in a non-visible area is arranged with black light-shielding ink.

4. The liquid crystal display screen for avoiding white edges according to claim 3, characterized in that: The distance between the inner side of the black light-shielding ink and the center of the visible area is smaller than the distance between the upper top plate and the center of the visible area.

5. The liquid crystal display screen for avoiding white edges according to claim 3, characterized in that: The lower surface of the cover plate is provided with an annular groove, the annular groove is located in a non-visible area, and the lower surface of the cover plate in the area enclosed by the annular groove is coated with optical glue.

6. The liquid crystal display screen for avoiding white edges according to claim 5, characterized in that: The cross-sectional shape of the annular groove is a trapezoid.

7. The liquid crystal display screen for avoiding white edges according to claim 6, characterized in that: The cross-sectional shape of the annular groove is an isosceles trapezoid.

8. The liquid crystal display screen for avoiding white edges according to claim 5, characterized in that: The annular groove is an open groove which is wide outside and narrow inside.

9. The liquid crystal display screen for avoiding white edges according to claim 5, characterized in that: The depth of the annular groove is 0.1 mm.

10. The liquid crystal display screen for avoiding white edges according to claim 5, characterized in that: The inner surface of the annular groove is provided with a surface treatment layer for improving the surface roughness.

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